------------------------------------------------------------------------------




                         BAY APARTMENT COMMUNITIES, INC.


                                       TO


                       STATE STREET BANK AND TRUST COMPANY

                                     Trustee



                                    Indenture

                          Dated as of January 16, 1998


                             Senior Debt Securities




------------------------------------------------------------------------------
<PAGE>
                                TABLE OF CONTENTS
                                                                            Page

RECITALS OF THE COMPANY......................................................  1

ARTICLE ONE - DEFINITIONS AND OTHER PROVISIONS OF GENERAL
      APPLICATION............................................................  1
      SECTION 101.  Definitions..............................................  1
      SECTION 102.  Compliance Certificates and Opinions..................... 11
      SECTION 103.  Form of Documents Delivered to Trustee................... 12
      SECTION 104.  Acts of Holders.......................................... 12
      SECTION 105.  Notices, etc., to Trustee and Company.................... 14
      SECTION 106.  Notice to Holders: Waiver................................ 15
      SECTION 107.  Counterparts; Effect of Headings and Table of Contents... 16
      SECTION 108.  Successors and Assigns................................... 16
      SECTION 109.  Severability Clause...................................... 16
      SECTION 110.  Benefits of Indenture.................................... 16
      SECTION 111.  Governing Law............................................ 16
      SECTION 112.  Legal Holidays........................................... 16
      SECTION 113.  Immunity of Stockholders, Directors, Officers and
                    Agents of the Company.................................... 17
      SECTION 114.  Conflict with Trust Indenture Act........................ 17

ARTICLE TWO - SECURITIES FORMS............................................... 17
      SECTION 201.  Forms of Securities...................................... 17
      SECTION 202.  Form of Trustee's Certificate of Authentication.......... 18
      SECTION 203.  Securities Issuable in Global Form....................... 18

ARTICLE THREE - THE SECURITIES............................................... 19
      SECTION 301.  Amount Unlimited; Issuable in Series..................... 19
      SECTION 302.  Denominations............................................ 23
      SECTION 303.  Execution, Authentication, Delivery and Dating........... 23
      SECTION 304.  Temporary Securities..................................... 26
      SECTION 305.  Registration, Registration of Transfer and Exchange...... 28
      SECTION 306.  Mutilated, Destroyed, Lost and Stolen Securities......... 32
      SECTION 307.  Payment of Interest; Interest Rights Preserved........... 33
      SECTION 308.  Persons Deemed Owners.................................... 35
      SECTION 309.  Cancellation............................................. 36
      SECTION 310.  Computation of Interest.................................. 36

ARTICLE FOUR - SATISFACTION AND DISCHARGE.................................... 36
      SECTION 401.  Satisfaction and Discharge of Indenture.................. 36
      SECTION 402.  Application of Trust Funds............................... 38

                                       (i)
<PAGE>
                                                                            Page


ARTICLE FIVE - REMEDIES...................................................... 38
      SECTION 501.  Events of Default........................................ 38
      SECTION 502.  Acceleration of Maturity; Rescission and Annulment....... 40
      SECTION 503.  Collection of Indebtedness and Suits for Enforcement by
                    Trustee.................................................. 41
      SECTION 504.  Trustee May File Proofs of Claim......................... 42
      SECTION 505.  Trustee May Enforce Claims Without Possession of
                    Securities or Coupons.................................... 43
      SECTION 506.  Application of Money Collected........................... 43
      SECTION 507.  Limitation on Suits...................................... 44
      SECTION 508.  Unconditional Right of Holders to Receive Principal,
                    Premium or Make-Whole Amount, if any, and Interest....... 44
      SECTION 509.  Restoration of Rights and Remedies....................... 45
      SECTION 510.  Rights and Remedies Cumulative........................... 45
      SECTION 511.  Delay or Omission Not Waiver............................. 45
      SECTION 512.  Control by Holders of Securities......................... 45
      SECTION 513.  Waiver of Past Defaults.................................. 46
      SECTION 514.  Waiver of Usury, Stay or Extension Laws.................. 46
      SECTION 515.  Undertaking for Costs.................................... 46

ARTICLE SIX - THE TRUSTEE.................................................... 47
      SECTION 601.  Notice of Defaults....................................... 47
      SECTION 602.  Certain Rights of Trustee................................ 47
      SECTION 603.  Not Responsible for Recitals or Issuance of Securities... 49
      SECTION 604.  May Hold Securities...................................... 49
      SECTION 605.  Money Held in Trust...................................... 49
      SECTION 606.  Compensation and Reimbursement........................... 50
      SECTION 607.  Corporate Trustee Required; Eligibility; Conflicting
                    Interests................................................ 50
      SECTION 608.  Resignation and Removal; Appointment of Successor........ 51
      SECTION 609.  Acceptance of Appointment by Successor................... 52
      SECTION 610.  Merger, Conversion, Consolidation or Succession to
                    Business................................................. 53
      SECTION 611.  Appointment of Authenticating Agent...................... 54
      SECTION 612.  Certain Duties and Responsibilities of the Trustee....... 55

ARTICLE SEVEN - HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY............ 57
      SECTION 701.  Disclosure of Names and Addresses of Holders............. 57
      SECTION 702.  Reports by Trustee....................................... 57
      SECTION 703.  Reports by Company....................................... 57
      SECTION 704.  Company to Furnish Trustee Names and Addresses of
                    Holders.................................................. 58


                                      (ii)
<PAGE>
                                                                            Page

ARTICLE EIGHT - CONSOLIDATION, MERGER, SALE, LEASE OR CONVEYANCE............. 58
      SECTION 801.  Consolidations and Mergers of  Company and Sales, Leases
                    and Conveyances Permitted Subject to Certain Conditions.. 58
      SECTION 802.  Rights and Duties of Successor Corporation............... 59
      SECTION 803.  Officers' Certificate and Opinion of Counsel............. 59

ARTICLE NINE - SUPPLEMENTAL INDENTURES....................................... 59
      SECTION 901.  Supplemental Indentures Without Consent of Holders....... 59
      SECTION 902.  Supplemental Indentures with Consent of Holders.......... 61
      SECTION 903.  Execution of Supplemental Indentures..................... 62
      SECTION 904.  Effect of Supplemental Indentures........................ 62
      SECTION 905.  Conformity with Trust Indenture Act...................... 62
      SECTION 906.  Reference in Securities to Supplemental Indentures....... 63

ARTICLE TEN - COVENANTS...................................................... 63
      SECTION 1001.  Payment of Principal, Premium or Make-Whole Amount, if
                     any; and Interest....................................... 63
      SECTION 1002.  Maintenance of Office or Agency......................... 63
      SECTION 1003.  Money for Securities Payments to Be Held in Trust....... 65
      SECTION 1004.  Existence............................................... 66
      SECTION 1005.  Maintenance of Properties............................... 66
      SECTION 1006.  Insurance............................................... 67
      SECTION 1007.  Payment of Taxes and Other Claims....................... 67
      SECTION 1008.  Statement as to Compliance.............................. 67
      SECTION 1009.  Waiver of Certain Covenants............................. 67

ARTICLE ELEVEN - REDEMPTION OF SECURITIES.................................... 67
      SECTION 1101.  Applicability of Article................................ 67
      SECTION 1102.  Election to Redeem; Notice to Trustee................... 68
      SECTION 1103.  Selection by Trustee of Securities to Be Redeemed....... 68
      SECTION 1104.  Notice of Redemption.................................... 68
      SECTION 1105.  Deposit of Redemption Price............................. 70
      SECTION 1106.  Securities Payable on Redemption Date................... 70
      SECTION 1107.  Securities Redeemed in Part............................. 71

ARTICLE TWELVE - SINKING FUNDS............................................... 71
      SECTION 1201.  Applicability of Article................................ 71
      SECTION 1202.  Satisfaction of Sinking Fund Payments with Securities... 72
      SECTION 1203.  Redemption of Securities for Sinking Fund............... 72

ARTICLE THIRTEEN - REPAYMENT AT THE OPTION OF HOLDERS........................ 72


                                      (iii)
<PAGE>
                                                                            Page

      SECTION 1301.  Applicability of Article................................ 72
      SECTION 1302.  Repayment of Securities................................. 73
      SECTION 1303.  Exercise of Option...................................... 73
      SECTION 1304.  When Securities Presented for Repayment Become Due and
                     Payable................................................. 74
      SECTION 1305.  Securities Repaid in Part............................... 75

ARTICLE FOURTEEN - DEFEASANCE AND COVENANT DEFEASANCE........................ 75
      SECTION 1401.  Applicability of Article: Company's Option to Effect
                     Defeasance or Covenant Defeasance....................... 75
      SECTION 1402.  Defeasance and Discharge................................ 75
      SECTION 1403.  Covenant Defeasance..................................... 76
      SECTION 1404.  Conditions to Defeasance or Covenant Defeasance......... 76
      SECTION 1405.  Deposited Money and Government Obligations to Be Held
                     in Trust; Other Miscellaneous Provisions................ 78

ARTICLE FIFTEEN - MEETINGS OF HOLDERS OF SECURITIES.......................... 79
      SECTION 1501.  Purposes for Which Meetings May Be Called............... 79
      SECTION 1502.  Call, Notice and Place of Meetings...................... 79
      SECTION 1503.  Persons Entitled to Vote at Meetings.................... 80
      SECTION 1504.  Quorum; Action.......................................... 80
      SECTION 1505.  Determination of Voting Rights; Conduct and Adjournment
                     of Meetings............................................. 81
      SECTION 1506.  Counting Votes and Recording Action of Meetings......... 82

SIGNATURES AND SEALS......................................................... 83

ACKNOWLEDGMENT............................................................... 84

EXHIBIT A

      FORM OF REDEEMABLE OR NON-REDEEMABLE SENIOR SECURITY.................. A-1

EXHIBIT B

      FORMS OF CERTIFICATION................................................ B-1


                                      (iv)
<PAGE>
                         BAY APARTMENT COMMUNITIES, INC.


      Reconciliation and tie between Trust Indenture Act of 1939 (the "Trust
Indenture Act" or "TIA") and Indenture, dated as of January 16, 1998.

 Trust Indenture
   Act Section                                           Indenture Section
   -----------                                           -----------------

Section 310(a)(1).......................................      607
           (a)(2).......................................      607
              (b)....................................... 607, 608
   Section 312(c).......................................      701
   Section 313(a).......................................      702
              (c).......................................      702
   Section 314(a).......................................      703
           (a)(4).......................................     1008
           (c)(1).......................................      102
           (c)(2).......................................      102
              (e).......................................      102
   Section 315(b).......................................      601
   Section 316(a)(last sentence)........................      101("Outstanding")
        (a)(1)(A)....................................... 502, 512
        (a)(1)(B).......................................      513
              (b).......................................      508
Section 317(a)(1).......................................      503
           (a)(2).......................................      504
   Section 318(a).......................................      111
              (c).......................................      111

---------------

NOTE: This reconciliation and tie shall not, for any purpose, be deemed to be a
      part of the Indenture.

      Attention should also be directed to TIA Section 318(c), which provides
that the provisions of TIA Sections 310 to and including 317 of the Trust
Indenture Act are a part of and govern every qualified indenture, whether or not
physically contained therein.


                                       (v)
<PAGE>
      INDENTURE, dated as of January 16, 1998, between BAY APARTMENT
COMMUNITIES, INC., a corporation organized under the laws of the State of
Maryland (hereinafter called the "Company"), having its principal office at 4340
Stevens Creek Boulevard, Suite 275, San Jose, California 95129, and STATE STREET
BANK AND TRUST COMPANY, a trust company organized under the laws of The
Commonwealth of Massachusetts, as Trustee hereunder (hereinafter called the
"Trustee"), having a Corporate Trust Office at Two International Place, Boston,
Massachusetts 02110.

                             RECITALS OF THE COMPANY

      The Company deems it necessary to issue from time to time for its lawful
purposes senior debt securities (hereinafter called the "Securities") evidencing
its unsecured and senior indebtedness, and has duly authorized the execution and
delivery of this Indenture to provide for the issuance from time to time of the
Securities, to be issued in one or more Series as provided in this Indenture.

      This Indenture is subject to the provisions of the Trust Indenture Act of
1939, as amended (the "Trust Indenture Act" or "TIA"), that are deemed to be
incorporated into this Indenture and shall, to the extent applicable, be
governed by such provisions.

      All things necessary to make this Indenture a valid agreement of the
Company, in accordance with its terms, have been done.

      NOW, THEREFORE, THIS INDENTURE WITNESSETH:

      For and in consideration of the premises and the purchase of the
Securities by the Holders thereof, it is mutually covenanted and agreed, for the
equal and proportionate benefit of all Holders of the Securities, as follows:


            ARTICLE ONE - DEFINITIONS AND OTHER PROVISIONS OF GENERAL
                                   APPLICATION

      SECTION 101. Definitions. For all purposes of this Indenture, except as
otherwise expressly provided or unless the context otherwise requires:

            (1) the terms defined in this Article have the meanings assigned to
      them in this Article, and include the plural as well as the singular;

            (2) all other terms used herein which are defined in the TIA, either
      directly or by reference therein, have the meanings assigned to them
      therein, and the terms "cash transactions" and "self-liquidating paper,"
      as used in TIA Section 311, shall have the meanings assigned to them in
      the rules of the Commission adopted under the TIA;
<PAGE>
            (3) all accounting terms not otherwise defined herein have the
      meanings assigned to them in accordance with GAAP; and

            (4) the words "herein," "hereof "and "hereunder" and other words of
      similar import refer to this Indenture as a whole and not to any
      particular Article, Section or other subdivision.

      "Act," when used with respect to any Holder, has the meaning specified in
Section 104.

      "Affiliate" of any specified Person means any other Person directly or
indirectly controlling or controlled by or under direct or indirect common
control with such specified Person. For the purposes of this definition,
"control" when used with respect to any specified Person means the power to
direct the management and policies of such Person, directly or indirectly,
whether through the ownership of voting securities, by contract or otherwise;
and the terms "controlling" and "controlled" have meanings correlative to the
foregoing.

      "Authenticating Agent" means any Person authorized by the Trustee pursuant
to Section 611 hereof to act on behalf of the Trustee to authenticate
Securities.

      "Authorized Newspaper" means a newspaper, printed in the English language
or in an official language of the country of publication, customarily published
on each Business Day, whether or not published on Saturdays, Sundays or
holidays, and of general circulation in each place in connection with which the
term is used or in the financial community of each such place. Whenever
successive publications are required to be made in Authorized Newspapers, the
successive publications may be made in the same or in different Authorized
Newspapers in the same city meeting the foregoing requirements and in each case
on any Business Day.

      "Bankruptcy Law" has the meaning specified in Section 501.

      "Bearer Security" means any Security established pursuant to Section 201
which is payable to bearer.

      "Board of Directors" means the board of directors of the Company or any
committee of that board duly authorized to act hereunder.

      "Board Resolution" means a copy of a resolution certified by the Secretary
or an Assistant Secretary of the Company to have been duly adopted by the Board
of Directors and to be in full force and effect on the date of such
certification, and delivered to the Trustee.

      "Business Day," when used with respect to any Place of Payment or any
other particular location referred to in this Indenture or in the Securities,
means, unless otherwise specified with respect to any Securities issued pursuant
to Section 301, any day, other than a


                                        2
<PAGE>
Saturday or Sunday, that is not a day on which banking institutions in that
Place of Payment or particular location are authorized or required by law,
regulation or executive order to close.

      "Capital Stock" means, with respect to any Person, any capital stock
(including preferred stock), shares, interests, participations or other
ownership interests (however designated) of such Person and any rights (other
than debt securities convertible into or exchangeable for corporate stock),
warrants or options to purchase any thereof.

      "CEDEL" means Centrale de Livraison de Valeurs Mobilieres, S.A., or its
successor.

      "Commission" means the Securities and Exchange Commission, as from time to
time constituted, created under the Securities Exchange Act of 1934, or, if at
any time after execution of this instrument such Commission is not existing and
performing the duties now assigned to it under the Trust Indenture Act, then the
body performing such duties on such date.

      "Common Stock" means, with respect to any Person, all shares of capital
stock issued by such Person other than Preferred Stock.

      "Company" means the Person named as the "Company" in the first paragraph
of this Indenture until a successor corporation shall have become such pursuant
to the applicable provisions of this Indenture, and thereafter "Company" shall
mean such successor corporation.

      "Company Request" and "Company Order" mean, respectively, a written
request or order signed in the name of the Company by its Chairman of the Board,
the President or a Vice President, and by its Treasurer, an Assistant Treasurer,
the Secretary or an Assistant Secretary, of the Company, and delivered to the
Trustee.

      "Consolidated Net Assets" means as of any particular time the aggregate
amount of assets (less applicable reserves and other properly deductible items)
after deducting therefrom all current liabilities except for (a) notes and loans
payable, (b) current maturities of long-term debt and (c) current maturities of
obligations under capital leases, all as set forth on the most recent
consolidated balance sheet of the Company and its consolidated Subsidiaries and
computed in accordance with generally accepted accounting principles and
practices as in effect on January 16, 1998.

      "Conversion Event" means the cessation of use of (i) a Foreign Currency
both by the government of the country which issued such currency and for the
settlement of transactions by a central bank or other public institutions of or
within the international banking community, (ii) the ECU both within the
European Monetary System and for the settlement of transactions by public
institutions of or within the European Communities or (iii) any currency unit
(or composite currency) other than the ECU for the purposes for which it was
established.


                                        3
<PAGE>
      "Corporate Trust Office" means the office of the Trustee at which, at any
particular time, its corporate trust business shall be principally administered,
which office at the date hereof is located at Two International Place, Boston,
Massachusetts 02110, Attention:
Corporate Trust Department.

      "corporation" includes corporations, associations, companies and business
trusts.

      "coupon" means any interest coupon appertaining to a Bearer Security.

      "Custodian" has the meaning specified in Section 501.

      "Defaulted Interest" has the meaning specified in Section 307.

      "Dollar" or "$" means a dollar or other equivalent unit in such coin or
currency of the United States of America as at the time shall be legal tender
for the payment of public and private debts.

      "ECU" means the European Currency Unit as defined and revised from time to
time by the Council of the European Communities.

      "Euroclear" means Morgan Guaranty Trust Company of New York, Brussels
office, or its successor, as operator of the Euroclear System.

      "European Communities" means the European Economic Community, the European
Coal and Steel Community and the European Atomic Energy Community.

      "European Monetary System" means the European Monetary System established
by the Resolution of December 5, 1978 of the Council of the European
Communities.

      "Event of Default" has the meaning specified in Article Five.

      "Foreign Currency" means any currency, currency unit or composite
currency, including, without limitation, the ECU issued by the government of one
or more countries other than the United States of America or by any recognized
confederation or association of such governments.

      "GAAP" means, except as otherwise provided herein, generally accepted
accounting principles, as in effect from time to time, as used in the United
States applied on a consistent basis.

      "Global Security" means a Security evidencing all or a part of a series of
Securities issued to and registered in the name of the depository for such
series, or its nominee, in accordance with Section 305, and bearing the legend
prescribed in Section 203.


                                        4
<PAGE>
      "Government Obligations" means securities which are (i) direct obligations
of the United States of America or the government which issued the Foreign
Currency in which the Securities of a particular series are payable, for the
payment of which its full faith and credit is pledged or (ii) obligations of a
Person controlled or supervised by and acting as an agency or instrumentality of
the United States of America or such government which issued the Foreign
Currency in which the Securities of such series are payable, the payment of
which is unconditionally guaranteed as a full faith and credit obligation by the
United States of America or such other government, which, in either case, are
not callable or redeemable at the option of the issuer thereof, and (iii) shall
also include a depository receipt issued by a bank or trust company as custodian
with respect to any such Government Obligation or a specific payment of interest
on or principal of any such Government Obligation held by such custodian for the
account of the holder of a depository receipt, provided that (except as required
by law) such custodian is not authorized to make any deduction from the amount
payable to the holder of such depository receipt from any amount received by the
custodian in respect of the Government Obligation or the specific payment of
interest on or principal of the Government Obligation evidenced by such
depository receipt.

      "Guaranty" by any Person means any Obligation, contingent or otherwise, of
such Person guaranteeing any Indebtedness of any other Person (the "primary
obligor") in any manner, whether directly or indirectly, and including, without
limitation, every Obligation of such Person (i) to purchase or pay (or advance
or supply funds for the purchase or payment of) such Indebtedness or to purchase
(or to advance or supply funds for the purchase of) any security for the payment
of such Indebtedness, (ii) to purchase property, securities or services for the
purpose of assuring the holder of such Indebtedness of the payment of such
Indebtedness or (iii) to maintain working capital, equity capital or other
financial statement condition or liquidity of the primary obligor so as to
enable the primary obligor to pay such Indebtedness; provided, however, that a
Guaranty by any Person shall not include endorsements by such Person for
collection or deposit, in either case in the ordinary course of business. The
terms "Guaranteed," "Guaranteeing" and "Guarantor" shall have meanings
correlative to the foregoing.

      "Holder" means, in the case of a Registered Security, the Person in whose
name a Security is registered in the Security Register and, in the case of a
Bearer Security, the bearer thereof and, when used with respect to any coupon,
shall mean the bearer thereof.

      "Indebtedness" means, with respect to any Person, without duplication, (i)
any Obligation of such Person relating to any indebtedness of such Person (A)
for borrowed money (whether or not the recourse of the lender is to the whole of
the assets, of such person or only to a portion thereof), (B) evidenced by
notes, debentures or similar instruments (including purchase money obligations)
given in connection with the acquisition of any property or assets (other than
trade accounts payable for inventory or similar property acquired in the
ordinary course of business), including securities, for the payment of which
such Person is liable, directly or indirectly, or the payment of which is
secured by a lien, charge or encumbrance on


                                        5
<PAGE>
property or assets of such Person, (C) for goods, materials or services
purchased in the ordinary course of business (other than trade accounts payable
arising in the ordinary course of business), (D) with respect to letters of
credit or bankers acceptances issued for the account of such Person or
performance, surety or similar bonds, (E) for the payment of money relating to a
Capitalized Lease Obligation or (F) under interest rate swaps, caps or similar
agreements and foreign exchange contracts, currency swaps or similar agreements;
(ii) any liability of others of the kind described in the preceding clause (i),
which such Person has Guaranteed or which is otherwise its legal liability; and
(iii) any and all deferrals, renewals, extensions and refunding of, or
amendments, modifications or supplements to, any liability of the kind described
in any of the preceding clauses (i) or (ii).

      "Indenture" means this instrument as originally executed or as it may be
supplemented or amended from time to time by one or more indentures supplemental
hereto entered into pursuant to the applicable provisions hereof, and shall
include the terms of particular series of Securities established as contemplated
by Section 301; provided, however, that, if at any time more than one Person is
acting as Trustee under this instrument, "Indenture" shall mean, with respect to
any one or more series of Securities for which such Person is Trustee, this
instrument as originally executed or as it may be supplemented or amended from
time to time by one or more indentures supplemental hereto entered into pursuant
to the applicable provisions hereof and shall include the terms of the or those
particular series of Securities for which such Person is Trustee established as
contemplated by Section 301, exclusive, however, of any provisions or terms
which relate solely to other series of Securities for which such Person is
Trustee, regardless of when such terms or provisions were adopted, and exclusive
of any provisions or terms adopted by means of one or more indentures
supplemental hereto executed and delivered after such Person had become such
Trustee but to which such Person, as such Trustee, was not a party.

      "Indexed Security" means a Security the terms of which provide that the
principal amount thereof payable at Stated Maturity may be more or less than the
principal face amount thereof at original issuance.

      "Interest," when used with respect to an Original Issue Discount Security
which by its terms bears interest only after Maturity, shall mean interest
payable after Maturity.

      "Interest Payment Date," when used with respect to any Security, means the
Stated Maturity of an installment of interest on such Security.

      "Make-Whole Amount," when used with respect to any Security, means the
amount, if any, in addition to principal (and accrued interest thereon, if any)
which is required by a Security, under the terms and conditions specified
therein or as otherwise specified as contemplated by Section 301, to be paid by
the Company to the Holder thereof in connection with any optional redemption or
accelerated payment of such Security.


                                        6
<PAGE>
      "Maturity," when used with respect to any Security, means the date on
which the principal of such Security or an installment of principal becomes due
and payable as therein or herein provided, whether at the Stated Maturity or by
declaration of acceleration, notice of redemption, notice of option to elect
repayment or otherwise.

      "Obligation" of any Person with respect to any specified Indebtedness
means any obligation of such Person to pay principal, premium, interest
(including interest accruing on or after the filing of any petition in
bankruptcy or for reorganization relating to such Person, whether or not a claim
for such post-petition interest is allowed in such Proceeding), penalties,
reimbursement or indemnification amounts, fees, expenses or other amounts
relating to such Indebtedness.

      "Officers' Certificate" means a certificate signed by the Chairman of the
Board of Directors, the President or a Vice President and by the Treasurer, an
Assistant Treasurer, the Secretary or an Assistant Secretary of the Company, and
delivered to the Trustee.

      "Opinion of Counsel" means a written opinion of counsel, who may be
counsel for the Company or who may be an employee of or other counsel for the
Company and who shall be satisfactory to the Trustee.

      "Original Issue Discount Security" means any Security which provides for
an amount less than the principal amount thereof to be due and payable upon a
declaration of acceleration of the Maturity thereof pursuant to Section 502.

      "Outstanding," when used with respect to Securities, means, as of the date
of determination, all Securities theretofore authenticated and delivered under
this Indenture, except:

            (i) Securities theretofore canceled by the Trustee or delivered to
      the Trustee for cancellation;

            (ii) Securities, or portions thereof, for whose payment or
      redemption (including repayment at the option of the Holder) money in the
      necessary amount has been theretofore deposited with the Trustee or any
      Paying Agent (other than the Company) in trust or set aside and segregated
      in trust by the Company (if the Company shall act as its own Paying Agent)
      for the Holders of such Securities and any coupons appertaining thereto;
      provided, however, that, if such Securities are to be redeemed, notice of
      such redemption has been duly given pursuant to this Indenture or
      provision therefor satisfactory to the Trustee has been made;

            (iii) Securities, except to the extent provided in Sections 1402 and
      1403, with respect to which the Company has effected defeasance and/or
      covenant defeasance as provided in Article Fourteen; and


                                        7
<PAGE>
            (iv) Securities which have been paid pursuant to Section 306 or in
      exchange for or in lieu of which other Securities have been authenticated
      and delivered pursuant to this Indenture, other than any such Securities
      in respect of which there shall have been presented to the Trustee proof
      satisfactory to it that such Securities are held by a bona fide purchaser
      in whose hands such Securities are valid obligations of the Company.

provided, however, that in determining whether the Holders of the requisite
principal amount of the Outstanding Securities have given any request, demand,
authorization, direction, notice, consent or waiver hereunder or are present at
a meeting of Holders for quorum purposes, and for the purpose of making the
calculations required by TIA Section 313, (i) the principal amount of an
Original Issue Discount Security that may be counted in making such
determination or calculation and that shall be deemed to be Outstanding for such
purpose shall be equal to the amount of principal thereof that would be (or
shall have been declared to be) due and payable, at the time of such
determination, upon a declaration of acceleration of the maturity thereof
pursuant to Section 502, (ii) the principal amount of any Security denominated
in a Foreign Currency that may be counted in making such determination or
calculation and that shall be deemed Outstanding for such purpose shall be equal
to the Dollar equivalent, determined pursuant to Section 301 as of the date such
Security is originally issued by the Company, of the principal amount (or, in
the case of an Original Issue Discount Security, the Dollar equivalent as of
such date of original issuance of the amount determined as provided in clause
(i) above) of such Security, (iii) the principal amount of any Indexed Security
that may be counted in making such determination or calculation and that shall
be deemed outstanding for such purpose shall be equal to the principal face
amount of such Indexed Security at original issuance, unless otherwise provided
with respect to such Security pursuant to Section 301, and (iv) Securities owned
by the Company or any other obligor upon the Securities or any Affiliate of the
Company or of such other obligor shall be disregarded and deemed not to be
Outstanding, except that, in determining whether the Trustee shall be protected
in making such calculation or in relying upon any such request, demand,
authorization, direction, notice, consent or waiver, only Securities which the
Trustee knows to be so owned shall be so disregarded. Securities owned as
provided in clause (iv) above which have been pledged in good faith may be
regarded as Outstanding if the pledgee establishes to the satisfaction of the
Trustee the pledgee's right so to act with respect to such Securities and that
the pledgee is not the Company or any other obligor upon the Securities or any
Affiliate of the Company or of such other obligor. In case of a dispute as to
such right, the advice of counsel shall be full protection in respect of any
decision made by the Trustee in accordance with such advice.

      "Paying Agent" means any Person authorized by the Company to pay the
principal of (and premium or Make-Whole Amount, if any) or interest on any
Securities or coupons on behalf of the Company.


                                        8
<PAGE>
      "Person" means any individual, corporation, limited liability company,
partnership, joint venture, association, joint-stock company, trust,
unincorporated organization or government or any agency or political subdivision
thereof.

      "Place of Payment," when used with respect to the Securities of or within
any series, means the place or places where the principal of (and premium or
Make-Whole Amount, if any) and interest on such Securities are payable as
specified as contemplated by Sections 301 and 1002.

      "Predecessor Security" of any particular Security means every previous
Security evidencing all or a portion of the same debt as that evidenced by such
particular Security; and, for the purposes of this definition, any Security
authenticated and delivered under Section 306 in exchange for or in lieu of a
mutilated, destroyed, lost or stolen Security or a Security to which a
mutilated, destroyed, lost or stolen coupon appertains shall be deemed to
evidence the same debt as the mutilated, destroyed, lost or stolen Security or
the Security to which the mutilated, destroyed, lost or stolen coupon
appertains.

      "Preferred Stock" means, with respect to any Person, all capital stock
issued by such Person that are entitled to a preference or priority over any
other capital stock issued by such Person with respect to any distribution of
such Person's assets, whether by dividend or upon any voluntary or involuntary
liquidation, dissolution or winding up.

      "Redemption Date," when used with respect to any Security to be redeemed,
in whole or in part, means the date fixed for such redemption by or pursuant to
this Indenture.

      "Redemption Price," when used with respect to any Security to be redeemed,
means the price specified in the related Officers' Certificate or supplemental
indenture contemplated by and pursuant to Section 301, at which it is to be
redeemed pursuant to this Indenture.

      "Registered Security" shall mean any Security which is registered in the
Security Register.

      "Regular Record Date" for the interest payable on any Interest Payment
Date on the Registered Securities of or within any series means the date
specified for that purpose as contemplated by Section 301, whether or not a
Business Day.

      "Repayment Date" means, when used with respect to any Security to be
repaid at the option of the Holder, the date fixed for such repayment by or
pursuant to this Indenture.

      "Repayment Price" means, when used with respect to any Security to be
repaid at the option of the Holder, the price at which it is to be repaid by or
pursuant to this Indenture.


                                        9
<PAGE>
      "Responsible Officer," when used with respect to the Trustee, means any
senior vice president, vice president (whether or not designated by a number or
a word or words added before or after the title "vice president"), assistant
vice president, assistant secretary, trust officer or assistant trust officer
working in its Corporate Trust Department, or any other officer of the Trustee
customarily performing functions similar to those performed by any of the above
designated officers and working in its Corporate Trust Department, and also
means, with respect to a particular corporate trust matter, any other officer to
whom such matter is referred because of such officer's knowledge and familiarity
with the particular subject.

      "Security" has the meaning stated in the first recital of this Indenture
and, more particularly, means any Security or Securities authenticated and
delivered under this Indenture; provided, however, that, if at any time there is
more than one Person acting as Trustee under this Indenture, "Securities" with
respect to the Indenture as to which such Person is Trustee shall have the
meaning stated in the first recital of this Indenture and shall more
particularly mean Securities authenticated and delivered under this Indenture,
exclusive, however, of Securities of any series as to which such Person is not
Trustee.

      "Security Register" and "Security Registrar" have the respective meanings
specified in Section 305.

      "Significant Subsidiary" means any Subsidiary which is a "significant
subsidiary" (as defined in Article I, Rule 1-02 of Regulation S-X, promulgated
under the Securities Act of 1933) of the Company.

      "Special Record Date" for the payment of any Defaulted Interest on the
Registered Securities of or within any series means a date fixed by the Company
pursuant to Section 307.

      "Stated Maturity," when used with respect to any Security or any
installment of principal thereof or interest thereon, means the date specified
in such Security or a coupon representing such installment of interest as the
fixed date on which the principal of such Security or such installment of
principal or interest is due and payable.

      "Subsidiary" means, with respect to any Person, any corporation, limited
liability company, partnership or other entity of which a majority of (i) the
voting power of the voting equity securities or (ii) the outstanding equity
interests are owned, directly or indirectly, by such Person. For the purposes of
this definition, "voting equity securities" means equity securities having
voting power for the election of directors, whether at all times or only so long
as no senior class of security has such voting power by reason of any
contingency.

      "Trust Indenture Act" or "TIA" means the Trust Indenture Act of 1939, as
amended and as in force at the date as of which this Indenture was executed,
except as provided in Section 905.


                                       10
<PAGE>
      "Trustee" means the Person named as the "Trustee" in the first paragraph
of this Indenture until a successor Trustee shall have become such pursuant to
the applicable provisions of this Indenture, and thereafter "Trustee" shall mean
or include each Person who is then a Trustee hereunder; provided, however, that
if at any time there is more than one such Person, "Trustee" as used with
respect to the Securities of any series shall mean only the Trustee with respect
to Securities of that series.

      "United States" means, unless otherwise specified with respect to any
Securities pursuant to Section 301, the United States of America (including the
states and the District of Columbia), its territories, its possessions and other
areas subject to its jurisdiction.

      "United States Person" means, unless otherwise specified with respect to
any Securities pursuant to Section 301, an individual who is a citizen or
resident of the United States, a corporation, partnership or other entity
created or organized in or under the laws of the United States or an estate or
trust the income of which is subject to United States Federal income taxation
regardless of its source.

      "Yield to Maturity" means the yield to maturity, computed at the time of
issuance of a Security (or, if applicable, at the most recent redetermination of
interest on such Security) and as set forth in such Security in accordance with
generally accepted United States bond yield computation principles.

      SECTION 102. Compliance Certificates and Opinions. Upon any application or
request by the Company to the Trustee to take any action under any provision of
this Indenture, the Company shall furnish to the Trustee an Officers'
Certificate stating that all conditions precedent, if any, provided for in this
Indenture relating to the proposed action have been complied with and an Opinion
of Counsel stating that in the opinion of such counsel all such conditions
precedent, if any, have been complied with, except that in the case of any such
application or request as to which the furnishing of such documents is
specifically required by any provision of this Indenture relating to such
particular application or request, no additional certificate or opinion need be
furnished.

      Every certificate or opinion with respect to compliance with a condition
or covenant provided for in this Indenture (including certificates delivered
pursuant to Section 1008) shall include:

            (1) a statement that each individual signing such certificate or
      opinion has read such condition or covenant and the definitions herein
      relating thereto;

            (2) a brief statement as to the nature and scope of the examination
      or investigation upon which the statements or opinions contained in such
      certificate or opinion are based;


                                       11
<PAGE>
            (3) a statement that, in the opinion of each such individual, he has
      made such examination or investigation as is necessary to enable him to
      express an informed opinion as to whether or not such condition or
      covenant has been complied with; and

            (4) a statement as to whether, in the opinion of each such
      individual, such condition or covenant has been complied with.

      SECTION 103. Form of Documents Delivered to Trustee. In any case where
several matters are required to be certified by, or covered by an opinion of,
any specified Person, it is not necessary that all such matters be certified by,
or covered by the opinion of, only one such Person, or that they be so certified
or covered by only one document, but one such Person may certify or give an
opinion with respect to some matters and one or more other such Persons as to
other matters, and any such Person may certify or give an opinion as to such
matters in one or several documents.

      Any certificate or opinion of an officer of the Company may be based,
insofar as it relates to legal matters, upon an Opinion of Counsel, or a
certificate or representations by counsel, unless such officer knows, or in the
exercise of reasonable care should know, that the opinion, certificate or
representations with respect to the matters upon which his certificate or
opinion is based are erroneous. Any such Opinion of Counsel or certificate or
representations may be based, insofar as it relates to factual matters, upon a
certificate or opinion of, or representations by, an officer or officers of the
Company stating that the information as to such factual matters is in the
possession of the Company, unless such counsel knows, or in the exercise of
reasonable care should know, that the certificate or opinion or representations
with respect to such matters are erroneous.

      Where any Person is required to make, give or execute two or more
applications, requests, consents, certificates, statements, opinions or other
instruments under this Indenture, they may, but need not, be consolidated and
form one instrument.

      SECTION 104. Acts of Holders. (a) Any request, demand, authorization,
direction, notice, consent, waiver or other action provided by this Indenture to
be given or taken by Holders of the Outstanding Securities of all series or one
or more series, as the case may be, may be embodied in and evidenced by one or
more instruments of substantially similar tenor signed by such Holders in person
or by agents duly appointed in writing. If Securities of a series are issuable
as Bearer Securities, any request, demand, authorization, direction, notice,
consent, waiver or other action provided by this Indenture to be given or taken
by Holders of Securities of such series may, alternatively, be embodied in and
evidenced by the record of Holders of Securities of such series voting in favor
thereof, either in person or by proxies duly appointed in writing, at any
meeting of Holders of Securities of such series duly called and held in
accordance with the provisions of Article Fifteen, or a combination of such
instruments and any such record. Except as herein otherwise expressly provided,
such action shall become effective when such instrument or instruments or record
or both are delivered to the Trustee


                                       12
<PAGE>
and, where it is hereby expressly required, to the Company. Such instrument or
instruments and any such record (and the action embodied therein and evidenced
thereby) are herein sometimes referred to as the "Act" of the Holders signing
such instrument or instruments or so voting at any such meeting. Proof of
execution of any such instrument or of a writing appointing any such agent, or
of the holding by any Person of a Security, shall be sufficient for any purpose
of this Indenture and conclusive in favor of the Trustee and the Company and any
agent of the Trustee or the Company, if made in the manner provided in this
Section. The record of any meeting of Holders of Securities shall be proved in
the manner provided in Section 1506.

            (b) The fact and date of the execution by any Person of any such
instrument or writing may be proved by the affidavit of a witness of such
execution or by a certificate of a notary public or other officer authorized by
law to take acknowledgments of deeds, certifying that the individual signing
such instrument or writing acknowledged to him the execution thereof. Where such
execution is by a signer acting in a capacity other than his individual
capacity, such certificate or affidavit shall also constitute sufficient proof
of his authority. The fact and date of the execution of any such instrument or
writing, or the authority of the Person executing the same, may also be proved
in any other reasonable manner which the Trustee deems sufficient.

            (c) The ownership of Registered Securities shall be proved by the
Security Register. As to any matter relating to beneficial ownership interests
in any Global Security, the appropriate depository's records shall be
dispositive for purposes of this Indenture.

            (d) The ownership of Bearer Securities may be proved by the
production of such Bearer Securities or by a certificate executed, as
depository, by any trust company, bank, banker or other depository, wherever
situated, if such certificate shall be deemed by the Trustee to be satisfactory,
showing that at the date therein mentioned such Person had on deposit with such
depository, or exhibited to it, the Bearer Securities therein described; or such
facts may be proved by the certificate or affidavit of the Person holding such
Bearer Securities, if such certificate or affidavit is deemed by the Trustee to
be satisfactory. The Trustee and the Company may assume that such ownership of
any Bearer Security continues until (1) another certificate or affidavit bearing
a later date issued in respect of the same Bearer Security is produced, or (2)
such Bearer Security is produced to the Trustee by some other Person, or (3)
such Bearer Security is surrendered in exchange for a Registered Security, or
(4) such Bearer Security is no longer Outstanding. The ownership of Bearer
Securities may also be proved in any other manner which the Trustee deems
sufficient.

            (e) If the Company shall solicit from the Holders of Registered
Securities any request, demand, authorization, direction, notice, consent,
waiver or other Act, the Company may, at its option, in or pursuant to a Board
Resolution, fix in advance a record date for the determination of Holders
entitled to give such request, demand, authorization, direction, notice,
consent, waiver or other Act, but the Company shall have no obligation to do


                                       13
<PAGE>
so. Notwithstanding TIA Section 316(c), such record date shall be the record
date specified in or pursuant to such Board Resolution, which shall be a date
not earlier than the date 30 days prior to the first solicitation of Holders
generally in connection therewith and not later than the date such solicitation
is completed. If such a record date is fixed, such request, demand,
authorization, direction, notice, consent, waiver or other Act may be given
before or after such record date, but only the Holders of record at the close of
business on such record date shall be deemed to be Holders for the purposes of
determining whether Holders of the requisite proportion of Outstanding
Securities have authorized or agreed or consented to such request, demand,
authorization, direction, notice, consent, waiver or other Act, and for that
purpose the Outstanding Securities shall be computed as of such record date;
provided that no such authorization, agreement or consent by the Holders on such
record date shall be deemed effective unless it shall become effective pursuant
to the provisions of this Indenture not later than eleven months after the
record date.

            (f) Any request, demand, authorization, direction, notice, consent,
waiver or other Act of the Holder of any Security shall bind every future Holder
of the same Security and the Holder of every Security issued upon the
registration of transfer thereof or in exchange therefor or in lieu thereof in
respect of anything done, omitted or suffered to be done by the Trustee, any
Security Registrar, any Paying Agent, any Authenticating Agent or the Company in
reliance thereon, whether or not notation of such action is made upon such
Security.

      SECTION 105. Notices, etc., to Trustee and Company. Any request, demand,
authorization, direction, notice, consent, waiver or Act of Holders or other
document provided or permitted by this Indenture to be made upon, given or
furnished to, or filed with,

                  (1) the Trustee by any Holder or by the Company shall be
      sufficient for every purpose hereunder if made, given, furnished or filed
      in writing to or with the Trustee at State Street Bank and Trust Company,
      Two International Place, Boston MA 02110, Attention: Corporate Trust
      Department; or

                  (2) the Company by the Trustee or by any Holder shall be
      sufficient for every purpose hereunder (unless otherwise herein expressly
      provided) if in writing and mailed, first class postage prepaid, to the
      Company addressed to it at the address of its principal office specified
      in the first paragraph of this Indenture or at any other address
      previously furnished in writing to the Trustee by the Company, Attention:
      Chief Financial Officer, or

                  (3) either the Trustee or the Company, by the other party,
      shall be sufficient for every purpose hereunder if given by facsimile
      transmission, receipt confirmed by telephone followed by an original copy
      delivered by guaranteed overnight courier; if to the Trustee at facsimile
      number (617) 664-5371; and if to the Company at facsimile number (408)
      554-9780.


                                       14
<PAGE>
      SECTION 106. Notice to Holders: Waiver. Where this Indenture provides for
notice of any event to Holders of Registered Securities by the Company or the
Trustee, such notice shall be sufficiently given (unless otherwise herein
expressly provided) if in writing and mailed, first-class postage prepaid, to
each such Holder affected by such event, at his address as it appears in the
Security Register, not later than the latest date, if any, and not earlier than
the earliest date, if any, prescribed for the giving of such notice. In any case
where notice to Holders of Registered Securities is given by mail, neither the
failure to mail such notice, nor any defect in any notice so mailed, to any
particular Holder shall affect the sufficiency of such notice with respect to
other Holders of Registered Securities or the sufficiency of any notice to
Holders of Bearer Securities given as provided herein. Any notice mailed to a
Holder in the manner herein prescribed shall be conclusively deemed to have been
received by such Holder, whether or not such Holder actually receives such
notice.

      If by reason of the suspension of or irregularities in regular mail
service or by reason of any other cause it shall be impracticable to give such
notice by mail, then such notification to Holders of Registered Securities as
shall be made with the approval of the Trustee shall constitute a sufficient
notification to such Holders for every purpose hereunder.

      Except as otherwise expressly provided herein or otherwise specified with
respect to any Securities pursuant to Section 301, where this Indenture provides
for notice to Holders of Bearer Securities of any event, such notice shall be
sufficiently given if published in an Authorized Newspaper in The City of New
York and in such other city or cities as may be specified in such Securities on
a Business Day, such publication to be not later than the latest date, if any,
and not earlier than the earliest date, if any, prescribed for the giving of
such notice. Any such notice shall be deemed to have been given on the date of
such publication or, if published more than once, on the date of the first such
publication.

      If by reason of the suspension of publication of any Authorized Newspaper
or Authorized Newspapers or by reason of any other cause it shall be
impracticable to publish any notice to Holders of Bearer Securities as provided
above, then such notification to Holders of Bearer Securities as shall be given
with the approval of the Trustee shall constitute sufficient notice to such
Holders for every purpose hereunder. Neither the failure to give notice by
publication to any particular Holder of Bearer Securities as provided above, nor
any defect in any notice so published, shall affect the sufficiency of such
notice with respect to other Holders of Bearer Securities or the sufficiency of
any notice to Holders of Registered Securities given as provided herein.

      Any request, demand, authorization, direction, notice, consent or waiver
required or permitted under this Indenture shall be in the English language,
except that any published notice may be in an official language of the country
of publication.

      Where this Indenture provides for notice in any manner, such notice may be
waived in writing by the Person entitled to receive such notice, either before
or after the event, and such


                                       15
<PAGE>
waiver shall be the equivalent of such notice. Waivers of notice by Holders
shall be filed with the Trustee, but such filing shall not be a condition
precedent to the validity of any action taken in reliance upon such waiver.

      SECTION 107. Counterparts; Effect of Headings and Table of Contents. This
Indenture may be executed in any number of counterparts, each of which so
executed shall be deemed to be an original, but all such counterparts shall
together constitute but one and the same Indenture. The Article and Section
headings herein and the Table of Contents are for convenience only and shall not
affect the construction hereof.

      SECTION 108. Successors and Assigns. All covenants and agreements in this
Indenture by the Company shall bind its successors and assigns, whether so
expressed or not.

      SECTION 109. Severability Clause. In case any provision in this Indenture
or in any Security or coupon shall be held invalid, illegal or unenforceable,
the validity, legality and enforceability of the remaining provisions shall not
in any way be affected or impaired thereby.

      SECTION 110. Benefits of Indenture. Nothing in this Indenture or in the
Securities or coupons, express or implied, shall give to any Person, other than
the parties hereto, any Security Registrar, any Paying Agent, any Authenticating
Agent and their successors hereunder and the Holders any benefit or any legal or
equitable right, remedy or claim under this Indenture.

      SECTION 111. Governing Law. This Indenture and the Securities and coupons
shall be governed by and construed in accordance with the law of the State of
New York. This Indenture is subject to the provisions of the TIA that are
required to be part of this Indenture and shall, to the extent applicable, be
governed by such provisions.

      SECTION 112. Legal Holidays. In any case where any Interest Payment Date,
Redemption Date, Repayment Date, sinking fund payment date, Stated Maturity or
Maturity of any Security or the last date on which a Holder has the right to
exchange a Security shall not be a Business Day at any Place of Payment, then
(notwithstanding any other provision of this Indenture or any Security or coupon
other than a provision in the Securities of any series which specifically states
that such provision shall apply in lieu hereof), payment of interest or
principal (and premium or Make-Whole Amount, if any) or exchange of such
security need not be made at such Place of Payment on such date, but (except as
otherwise provided in the supplemental indenture with respect to such Security)
may be made on the next succeeding Business Day at such Place of Payment with
the same force and effect as if made on the Interest Payment Date, Redemption
Date, Repayment Date or sinking fund payment date, or at the Stated Maturity or
Maturity, or on such last day for exchange, provided that no interest shall
accrue on the amount so payable for the period from and after such Interest
Payment Date, Redemption Date, Repayment Date, sinking fund payment date, Stated
Maturity or Maturity, as the case may be.


                                       16
<PAGE>
      SECTION 113. Immunity of Stockholders, Directors, Officers and Agents of
the Company. No recourse under or upon any obligation, covenant or agreement
contained in this Indenture, or in any Security, or because of any indebtedness
evidenced thereby, shall be had against any past, present or future stockholder,
employee, officer or director, as such, of the Company or of any successor,
either directly or through the Company or any successor, under any rule of law,
statute or constitutional provision or by the enforcement of any assessment or
by any legal or equitable proceeding or otherwise, all such liability being
expressly waived and released by the acceptance of the Securities by the Holders
and as part of the consideration for the issue of the Securities.

      SECTION 114. Conflict with Trust Indenture Act. If any provision hereof
limits, qualifies or conflicts with another provision hereof which is required
or deemed to be included in this Indenture by any of the provisions of the Trust
Indenture Act, such required provision shall control. If any provision of this
Indenture modifies or excludes any provision of the Trust Indenture Act that may
be so modified or excluded, the latter provision shall be deemed to apply to
this Indenture as so modified or to be excluded, as the case may be.


                         ARTICLE TWO - SECURITIES FORMS

      SECTION 201. Forms of Securities. The Registered Securities, if any, of
each series and the Bearer Securities, if any, of each series and related
coupons shall be substantially in the form of Exhibit A hereto or in such other
form as shall be established in one or more indentures supplemental hereto or
approved from time to time by or pursuant to a Board Resolution in accordance
with Section 301, shall have such appropriate insertions, omissions,
substitutions and other variations as are required or permitted by this
Indenture or any indenture supplemental hereto, and may have such letters,
numbers or other marks of identification or designation and such legends or
endorsements placed thereon as the Company may deem appropriate and as are not
inconsistent with the provisions of this Indenture, or as may be required to
comply with any law or with any rule or regulation made pursuant thereto or with
any rule or regulation of any stock exchange on which the Securities may be
listed, or to conform to usage.

      Unless otherwise specified as contemplated by Section 301, Bearer
Securities shall have interest coupons attached.

      The definitive Securities and coupons shall be printed, lithographed or
engraved or produced by any combination of these methods on a steel engraved
border or steel engraved borders or mechanically reproduced on safety paper or
may be produced in any other manner, all as determined by the officers executing
such Securities or coupons, as evidenced by their execution of such Securities
or coupons.


                                       17
<PAGE>
      SECTION 202. Form of Trustee's Certificate of Authentication. Subject to
Section 611, the Trustee's certificate of authentication shall be in
substantially the following form:

      This is one of the Securities of the series designated therein referred to
in the within-mentioned Indenture.

                                  [__________________________________],
                                    as Trustee


Dated: ______________             By:__________________________________________
                                                  Authorized Signatory

      SECTION 203. Securities Issuable in Global Form. If Securities of or
within a series are issuable in the form of one or more Global Securities, then,
notwithstanding clause (8) of Section 301 and the provisions of Section 302, any
such Global Security or Securities may provide that it or they shall represent
the aggregate amount of all Outstanding Securities of such series (or such
lesser amount as is permitted by the terms thereof) from time to time endorsed
thereon and may also provide that the aggregate amount of Outstanding Securities
of such series represented thereby may from time to time be increased or
decreased to reflect exchanges. Any endorsement of any Global Security to
reflect the amount, or any increase or decrease in the amount, or changes in the
rights of Holders thereof, of Outstanding Securities represented thereby shall
be made (or caused to be made) by the Trustee in such manner or by such Person
or Persons as shall be specified therein or in the Company Order to be delivered
to the Trustee pursuant to Section 303 or 304. Subject to the provisions of
Section 303 and, if applicable, Section 304, the Trustee shall deliver and
redeliver any Global Security in permanent global form in the manner and upon
instructions given by the Person or Persons specified therein or in the
applicable Company Order. If a Company Order pursuant to Section 303 or 304 has
been, or simultaneously is, delivered, any instructions by the Company with
respect to endorsement or delivery or redelivery of a Global Security shall be
in writing but need not comply with Section 102 and need not be accompanied by
an Opinion of Counsel.

      The provisions of the last sentence of Section 303 shall apply to any
Security represented by a Global Security if such Security was never issued and
sold by the Company and the Company delivers to the Trustee the Global Security
together with written instructions (which need not comply with Section 102 and
need not be accompanied by an Opinion of Counsel) with regard to the reduction
in the principal amount of Securities represented thereby, together with the
written statement contemplated by the last sentence of Section 303.

      Notwithstanding the provisions of Section 307, unless otherwise specified
as contemplated by Section 301, payment of principal of and any premium or
Make-Whole


                                       18
<PAGE>
Amount, if any, and interest on any Global Security in permanent global form
shall be made to the registered Holder thereof.

      Notwithstanding the provisions of Section 308 and except as provided in
the preceding paragraph, the Company, the Trustee and any agent of the Company
and the Trustee shall treat as the Holder of such principal amount of
Outstanding Securities represented by a permanent Global Security (i) in the
case of a permanent Global Security in registered form, the Holder of such
permanent Global Security in registered form, or (ii) in the case of a permanent
Global Security in bearer form, Euroclear or CEDEL.

      Any Global Security authenticated and delivered hereunder shall bear a
legend in substantially the following form:

            "This Security is a Global Security within the meaning set forth in
            the Indenture hereinafter referred to and is registered in the name
            of a Depository or a nominee of a Depository. This Security is
            exchangeable for Securities registered in the name of a person other
            than the Depository or its nominee only in the limited circumstances
            described in the Indenture, and may not be transferred except as a
            whole by the Depository to a nominee of the Depository or by a
            nominee of the Depository to the Depository or another nominee of
            the Depository or by the Depository or its nominee to a successor
            Depository or its nominee."


                         ARTICLE THREE - THE SECURITIES

      SECTION 301. Amount Unlimited; Issuable in Series. The aggregate principal
amount of Securities which may be authenticated and delivered under this
Indenture is unlimited.

      The Securities may be issued in one or more series. There shall be
established in one or more Board Resolutions or pursuant to authority granted by
one or more Board Resolutions and, subject to Section 303, set forth in an
Officers' Certificate, or established in one or more indentures supplemental
hereto, prior to the issuance of Securities of any series:

                  (1) The title of the Securities of the series (which shall
      distinguish the Securities of such series from all other series of
      Securities);

                  (2) Any limit upon the aggregate principal amount of the
      Securities of the series that may be authenticated and delivered under
      this Indenture (except for Securities authenticated and delivered upon
      registration of transfer of, or in exchange


                                       19
<PAGE>
      for, or in lieu of, other Securities of the series pursuant to Section
      304, 305, 306, 906, 1107 or 1305) and the minimum authorized denominations
      with respect to the Securities of such series;

                  (3) The price (expressed as a percentage of the principal
      amount thereof) at which such Securities will be issued and, if other than
      the principal amount thereof, the portion of the principal amount thereof
      payable upon declaration of acceleration of the maturity thereof;

                  (4) The date or dates, or the method for determining such date
      or dates, on which the principal of such Securities will be payable;

                  (5) The rate or rates (which may be fixed or variable), or the
      method by which such rate or rates shall be determined, at which such
      Securities will bear interest, if any;

                  (6) The date or dates, or the method for determining such date
      or dates, from which any such interest will accrue, the dates on which any
      such interest will be payable, the record dates for such interest payment
      dates, or the method by which such dates shall be determined, the persons
      to whom such interest shall be payable, and the basis upon which interest
      shall be calculated if other than that of a 360-day year of twelve 30-day
      months;

                  (7) The Make-Whole Amount, if any, or method for determining
      the Make-Whole Amount, if any, payable with respect to such Securities,
      and the terms upon which such amount, if any, will be payable;

                  (8) The place or places where the principal of (and premium or
      Make-Whole Amount, if any) and interest, if any, on such Securities will
      be payable, where such Securities may be surrendered for registration of
      transfer or exchange and where notices or demands to or upon the Company
      in respect of such Securities and this Indenture may be served;

                  (9) The period or periods, if any, within which, the price or
      prices at which and the other terms and conditions upon which such
      Securities may, pursuant to any optional or mandatory redemption
      provisions, be redeemed, as a whole or in part, at the option of the
      Company;

                  (10) The obligation, if any, of the Company to redeem, repay
      or purchase such Securities pursuant to any sinking fund or analogous
      provision or at the option of a holder thereof, and the period or periods
      within which, the price or prices at which and the other terms and
      conditions upon which such Securities will be redeemed, repaid or
      purchased, as a whole or in part, pursuant to such obligation;


                                       20
<PAGE>
                  (11) If other than Dollars, the currency or currencies in
      which such Securities are denominated and payable, which may be a foreign
      currency or units of two or more foreign currencies or a composite
      currency or currencies, the manner of determining the equivalent thereof
      in Dollars for purposes of the definition of "Outstanding" in Section 101,
      and the terms and conditions relating thereto;

                  (12) Whether the amount of payments of principal of (and
      premium or Make-Whole Amount, if any, including any amount due upon
      redemption, if any) or interest, if any, on such Securities may be
      determined with reference to an index, formula or other method (which
      index, formula or method may, but need not be, based on the yield on or
      trading price of other securities, including United States Treasury
      securities or on a currency, currencies, currency unit or units, or
      composite currency or currencies) and the manner in which such amounts
      shall be determined;

                  (13) Whether the principal of (and premium or Make-Whole
      Amount, if any) or interest on the Securities of the series are to be
      payable, at the election of the Company or a Holder thereof, in a currency
      or currencies, currency unit or units or composite currency or currencies
      other than that in which such Securities are denominated or stated to be
      payable, the period or periods within which, and the terms and conditions
      upon which, such election may be made, and the time and manner of, and
      identity of the exchange rate agent with responsibility for, determining
      the exchange rate between the currency or currencies, currency unit or
      units or composite currency or currencies in which such Securities are
      denominated or stated to be payable and the currency or currencies,
      currency unit or units or composite currency or currencies in which such
      Securities are to be so payable;

                  (14) Provisions, if any, granting special rights to the
      Holders of Securities of the series upon the occurrence of such events as
      may be specified;

                  (15) Any deletions from, modifications of or additions to the
      Events of Default or covenants of the Company with respect to Securities
      of the series, whether or not such Events of Default or covenants are
      consistent with the Events of Default or covenants set forth herein;

                  (16) Whether and under what circumstances the Company will pay
      any additional amounts on such Securities in respect of any tax,
      assessment or governmental charge and, if so, whether the Company will
      have the option to redeem such Securities in lieu of making such payment;

                  (17) Whether Securities of the series are to be issuable as
      Registered Securities, Bearer Securities (with or without coupons) or
      both, any restrictions applicable to the offer, sale or delivery of Bearer
      Securities and the terms upon which Bearer Securities of the series may be
      exchanged for Registered Securities of the series


                                       21
<PAGE>
      and vice versa (if permitted by applicable laws and regulations), whether
      any Securities of the series are to be issuable initially in temporary
      global form and whether any Securities of the series are to be issuable in
      permanent global form with or without coupons and, if so, whether
      beneficial owners of interests in any such permanent global Security may,
      or shall be required to, exchange such interests for Securities of such
      series and of like tenor of any authorized form and denomination and the
      circumstances under which any such exchanges may, or shall be required to,
      occur, if other than in the manner provided in the Indenture, and, if
      Registered Securities of the series are to be issuable as a Global
      Security, the identity of the depository for such series;

                  (18) The date as of which any Bearer Securities of the series
      and any temporary Global Security representing outstanding Securities of
      the series shall be dated if other than the date of original issuance of
      the first Security of the series to be issued;

                  (19) The Person to whom any interest on any Registered
      Security of the series shall be payable, if other than the Person in whose
      name that Security (or one or more Predecessor Securities) is registered
      at the close of business on the Regular Record Date for such interest, the
      manner in which, or the Person to whom, any interest on any Bearer
      Security of the series shall be payable, if otherwise than upon
      presentation and surrender of the coupons appertaining thereto as they
      severally mature, and the extent to which, or the manner in which, any
      interest payable on a temporary Global Security on an Interest Payment
      Date will be paid if other than in the manner provided herein; provided,
      however, in each case, that the manner of determining such Person or
      making such payment shall be acceptable to the Trustee (as not imposing on
      it any undue administrative burden or risk of liability);

                  (20) The applicability, if any, of the defeasance and covenant
      defeasance provisions of Article Fourteen hereof to the Securities of the
      series;

                  (21) If the Securities of such series are to be issuable in
      definitive form (whether upon original issue or upon exchange of a
      temporary Security of such series) only upon receipt of certain
      certificates or other documents or satisfaction of other conditions, then
      the form and/or terms of such certificates, documents or conditions;

                  (22) Designation of the Trustee, if different from the Trustee
      under the Indenture, with respect to such series and the terms applicable
      to such Trustee (which shall be accepted by such Trustee by its execution
      and delivery of a supplemental indenture as provided therein); and

                  (23) Any other terms of the series (which terms shall not be
      inconsistent with the provisions of this Indenture).


                                       22
<PAGE>
      All Securities of any one series and the coupons appertaining to any
Bearer Securities of such series shall be substantially identical except, in the
case of Registered Securities, as to denomination and except as may otherwise be
provided in or pursuant to such Board Resolution (subject to Section 303) and
set forth in such Officers' Certificate or in any such indenture supplemental
hereto. All Securities of any one series need not be issued at the same time
and, unless otherwise provided, a series may be reopened, without the consent of
the Holders, for issuances of additional Securities of such series.

      If any of the terms of the Securities of any series are established by
action taken pursuant to one or more Board Resolutions, a copy of an appropriate
record of such action(s) shall be certified by the Secretary or an Assistant
Secretary of the Company and delivered to the Trustee at or prior to the
delivery of the Officers' Certificate setting forth the terms of the Securities
of such series.

      SECTION 302. Denominations. The Securities of each series shall be
issuable in such denominations as shall be specified as contemplated by Section
301. With respect to Securities of any series denominated in Dollars, in the
absence of any such provisions with respect to the Securities of any series, the
Securities of such series, other than Global Securities (which may be of any
denomination), shall be issuable in denominations of $1,000 and any integral
multiple thereof.

      SECTION 303. Execution, Authentication, Delivery and Dating. The
Securities and any coupons appertaining thereto shall be executed on behalf of
the Company by its Chairman of the Board, its President or one of its Vice
Presidents, under its corporate seal reproduced thereon, and attested by its
Secretary or one of its Assistant Secretaries. The signature of any of these
officers on the Securities and coupons may be manual or facsimile signatures of
the present or any future such authorized officer and may be imprinted or
otherwise reproduced on the Securities.

      Securities or coupons bearing the manual or facsimile signatures of
individuals who were at any time the proper officers of the Company shall bind
the Company, notwithstanding that such individuals or any of them have ceased to
hold such offices prior to the authentication and delivery of such Securities or
did not hold such offices at the date of such Securities or coupons.

      At any time and from time to time after the execution and delivery of this
Indenture, the Company may deliver Securities of any series, together with any
coupon appertaining thereto, executed by the Company to the Trustee for
authentication, together with a Company Order for the authentication and
delivery of such Securities (accompanied by a copy of the Board Resolution and
the Officers' Certificate or supplemental indenture contemplated by Section
301), and the Trustee in accordance with the Company Order shall authenticate
and deliver such Securities; provided, however, that, in connection with its
original issuance, no Bearer Security shall be mailed or otherwise delivered to
any location in the United States; and


                                       23
<PAGE>
provided further that, unless otherwise specified with respect to any series of
Securities pursuant to Section 301, a Bearer Security may be delivered in
connection with its original issuance only if the Person entitled to receive
such Bearer Security shall have furnished a certificate to Euroclear or CEDEL,
as the case may be, in the form set forth in Exhibit B-1 to this Indenture or
such other certificate as may be specified by the Company with respect to any
series of Securities pursuant to Section 301, dated no earlier than 15 days
prior to the earlier of the date on which such Bearer Security is delivered and
the date on which any temporary Security first becomes exchangeable for such
Bearer Security in accordance with the terms of such temporary Security and this
Indenture. If any Security shall be represented by a permanent global Bearer
Security, then, for purposes of this Section and Section 304, the notation of a
beneficial owner's interest therein upon original issuance of such Security or
upon exchange of a portion of a temporary Global Security shall be deemed to be
delivery in connection with its original issuance of such beneficial owner's
interest in such permanent Global Security. Except as permitted by Section 306,
the Trustee shall not authenticate and deliver any Bearer Security unless all
appurtenant coupons for interest then matured have been detached and canceled.

      If all the Securities of any series are not to be issued at one time and
if the Board Resolution or supplemental indenture establishing such series shall
so permit, such Company Order may set forth procedures acceptable to the Trustee
for the issuance of such Securities and determining the terms of particular
Securities of such series, such as interest rate or formula, maturity date, date
of issuance and date from which interest shall accrue. In authenticating such
Securities, and accepting the additional responsibilities under this Indenture
in relation to such Securities, the Trustee shall be entitled to receive, and
(subject to TIA Section 315(a) through 315(d)) shall be fully protected in
relying upon,

            (i) an Opinion of Counsel stating that

                  (a) the form or forms of such Securities and any coupons have
            been established in conformity with the provisions of this
            Indenture;

                  (b) the terms of such Securities and any coupons have been
            established in conformity with the provisions of this Indenture; and

                  (c) such Securities, together with any coupons appertaining
            thereto, when completed by appropriate insertions and executed and
            delivered by the Company to the Trustee for authentication in
            accordance with this Indenture, authenticated and delivered by the
            Trustee in accordance with this Indenture and issued by the Company
            in the manner and subject to any conditions specified in such
            Opinion of Counsel, will constitute legal, valid and legally binding
            obligations of the Company, enforceable in accordance with their
            terms, subject to applicable bankruptcy, insolvency, fraudulent
            transfer, reorganization and other similar laws of general
            applicability relating to or affecting the


                                       24
<PAGE>
            enforcement of creditors' rights generally and to general equitable
            principles; and

            (ii) an Officers' Certificate stating that all conditions precedent
      provided for in this Indenture relating to the issuance of the Securities
      have been complied with and that, to the best of the knowledge of the
      signers of such certificate, that no Event of Default with respect to any
      of the Securities shall have occurred and be continuing.

If such form or terms have been so established, the Trustee shall not be
required to authenticate such Securities (or to enter into the related
supplemental indenture, if applicable) if the issue of such Securities pursuant
to this Indenture will affect the Trustee's own rights, duties, obligations or
immunities under the Securities and this Indenture or otherwise in a manner
which is not reasonably acceptable to the Trustee.

      Notwithstanding the provisions of Section 301 and of the preceding
paragraph, if all the Securities of any series are not to be issued at one time,
it shall not be necessary to deliver an Officers' Certificate otherwise required
pursuant to Section 301 or a Company Order, or an Opinion of Counsel or an
Officers' Certificate otherwise required pursuant to the preceding paragraph at
the time of issuance of each Security of such series, but such order, opinion
and certificates, with appropriate modifications to cover such future issuances,
shall be delivered at or before the time of issuance of the first Security of
such series.

      Each Registered Security shall be dated the date of its authentication and
each Bearer Security shall be dated as of the date specified as contemplated by
Section 301.

      No Security or coupon shall be entitled to any benefit under this
Indenture or be valid or obligatory for any purpose unless there appears on such
Security or Security to which such coupon appertains a certificate of
authentication substantially in the form provided for herein duly executed by
the Trustee (subject to Section 611) by manual signature of an authorized
signatory, and such certificate upon any Security shall be conclusive evidence,
and the only evidence, that such Security has been duly authenticated and
delivered hereunder and is entitled to the benefits of this Indenture.
Notwithstanding the foregoing, if any Security (including a Global Security)
shall have been authenticated and delivered hereunder but never issued and sold
by the Company, and the Company shall deliver such Security to the Trustee for
cancellation as provided in Section 309 together with a written statement (which
need not comply with Section 102 and need not be accompanied by an Opinion of
Counsel) stating that such Security has never been issued and sold by the
Company, for all purposes of this Indenture such Security shall be deemed never
to have been authenticated and delivered hereunder and shall never be entitled
to the benefits of this Indenture.


                                       25
<PAGE>
      SECTION 304. Temporary Securities.

      (a) Pending the preparation of definitive Securities of any series, the
Company may execute, and upon Company Order the Trustee shall authenticate and
deliver, temporary Securities which are printed, lithographed, typewritten,
mimeographed or otherwise produced, in any authorized denomination,
substantially of the tenor of the definitive Securities in lieu of which they
are issued, in registered form, or, if authorized, in bearer form with one or
more coupons or without coupons, and with such appropriate insertions,
omissions, substitutions and other variations as the officers executing such
Securities may determine, as conclusively evidenced by their execution of such
Securities. In the case of Securities of any series, such temporary Securities
may be in global form.

      Except in the case of temporary Global Securities (which shall be
exchanged as otherwise provided herein or as otherwise provided in or pursuant
to a Board Resolution or supplemental indenture pursuant to Section 301), if
temporary Securities of any series are issued, the Company will cause definitive
Securities of that series to be prepared without unreasonable delay. After the
preparation of definitive Securities of such series, the temporary Securities of
such series shall be exchangeable for definitive Securities of such series upon
surrender of the temporary Securities of such series at the office or agency of
the Company in a Place of Payment for that series, without charge to the Holder.
Upon surrender for cancellation of any one or more temporary Securities of any
series (accompanied by any non-matured coupons appertaining thereto), the
Company shall execute and the Trustee shall authenticate and deliver in exchange
therefor a like principal amount of definitive Securities of the same series of
authorized denominations; provided, however, that no definitive Bearer Security
shall be delivered in exchange for a temporary Registered Security; and provided
further that a definitive Bearer Security shall be delivered in exchange for a
temporary Bearer Security only in compliance with the conditions set forth in
Section 303. Until so exchanged, the temporary Securities of any series shall in
all respects be entitled to the same benefits under this Indenture as definitive
Securities of such series.

      (b) Unless otherwise provided in or pursuant to a Board Resolution or
supplemental indenture pursuant to Section 301, the following provisions of this
Section 304(b) shall govern the exchange of temporary Securities other than
through the facilities of The Depository Trust Company. If any such temporary
Security is issued in global form, then such temporary Global Security shall,
unless otherwise provided therein, be delivered to the London office of a
depository or common depository upon and pursuant to written direction of the
Company (the "Common Depository"), for the benefit of Euroclear and CEDEL, for
credit to the respective accounts of the beneficial owners of such Securities
(or to such other accounts as they may direct).

      Without unnecessary delay but in any event not later than the date
specified in, or determined pursuant to the terms of, any such temporary Global
Security (the "Exchange Date"), the Company shall deliver to the Trustee
definitive Securities, in aggregate principal


                                       26
<PAGE>
amount equal to the principal amount of such temporary Global Security, executed
by the Company. On or after the Exchange Date, such temporary Global Security
shall be surrendered by the Common Depository to the Trustee, as the Company's
agent for such purpose, to be exchanged, in whole or from time to time in part,
for definitive Securities without charge, and the Trustee shall authenticate and
deliver, in exchange for each portion of such temporary Global Security, an
equal aggregate principal amount of definitive Securities of the same series of
authorized denominations and of like tenor as the portion of such temporary
Global Security to be exchanged. The definitive Securities to be delivered in
exchange for any such temporary Global Security shall be in bearer form,
registered form, permanent global bearer form or permanent global registered
form, or any combination thereof, as specified as contemplated by Section 301,
and, if any combination thereof is so specified, as requested by the beneficial
owner thereof (as directed by or pursuant to information provided by the Common
Depository); provided, however, that, unless otherwise specified in such
temporary Global Security, upon such presentation by the Common Depository, such
temporary Global Security shall be accompanied by a certificate dated the
Exchange Date or a subsequent date and signed by Euroclear as to the portion of
such temporary Global Security held for its account then to be exchanged and a
certificate dated the Exchange Date or a subsequent date and signed by CEDEL as
to the portion of such temporary Global Security held for its account then to be
exchanged, each in the form set forth in Exhibit A-2 to this Indenture or in
such other form as may be established pursuant to Section 301; and provided
further that definitive Bearer Securities shall be delivered in exchange for a
portion of a temporary Global Security only in compliance with the requirements
of Section 303.

      Unless otherwise specified in such temporary Global Security, the interest
of a beneficial owner of Securities of a series in a temporary Global Security
shall be exchanged for definitive Securities of the same series and of like
tenor following the Exchange Date when the account holder instructs Euroclear or
CEDEL, as the case may be, to request such exchange on his behalf and delivers
to Euroclear or CEDEL, as the case may be, a certificate in the form set forth
in Exhibit B-1 to this Indenture (or in such other form as may be established
pursuant to Section 301), dated no earlier than 15 days prior to the Exchange
Date, copies of which certificate shall be available from the offices of
Euroclear and CEDEL, the Trustee, any Authenticating Agent appointed for such
series of Securities and each Paying Agent. Unless otherwise specified in such
temporary Global Security, any such exchange shall be made free of charge to the
beneficial owners of such temporary Global Security, except that a Person
receiving definitive Securities must bear the cost of insurance, postage,
transportation and the like unless such Person takes delivery of such definitive
Securities in person at the offices of Euroclear or CEDEL. Definitive Securities
in bearer form to be delivered in exchange for any portion of a temporary Global
Security shall be delivered only to an address located outside the United
States.

      Until exchanged in full as hereinabove provided, the temporary Securities
of any series shall in all respects be entitled to the same benefits under this
Indenture as definitive Securities of the same series and of like tenor
authenticated and delivered hereunder, except that, unless


                                       27
<PAGE>
otherwise specified as contemplated by Section 301, interest payable on a
temporary Global Security on an Interest Payment Date for Securities of such
series occurring prior to the applicable Exchange Date shall be payable to
Euroclear and CEDEL on such Interest Payment Date upon delivery by Euroclear and
CEDEL to the Trustee of a certificate or certificates in the form set forth in
Exhibit B-2 to this Indenture (or in such other forms as may be established
pursuant to Section 301), for credit without further interest on or after such
Interest Payment Date to the respective accounts of Persons who are the
beneficial owners of such temporary Global Security on such Interest Payment
Date and who have each delivered to Euroclear or CEDEL, as the case may be, a
certificate dated no earlier than 15 days prior to the Interest Payment Date
occurring prior to such Exchange Date in the form set forth as Exhibit B-1 to
this Indenture (or in such other forms as may be established pursuant to Section
301). Notwithstanding anything to the contrary herein contained, the
certifications made pursuant to this paragraph shall satisfy the certification
requirements of the preceding two paragraphs of this Section 304(b) and of the
third paragraph of Section 303 of this Indenture and the interests of the
Persons who are the beneficial owners of the temporary Global Security with
respect to which such certification was made will be exchanged for definitive
Securities of the same series and of like tenor on the Exchange Date or the date
of certification if such date occurs after the Exchange Date, without further
act or deed by such beneficial owners. Except as otherwise provided in this
paragraph, no payments of principal or interest owing with respect to a
beneficial interest in a temporary Global Security will be made unless and until
such interest in such temporary Global Security shall have been exchanged for an
interest in a definitive Security. Any interest so received by Euroclear and
CEDEL and not paid as herein provided shall be returned to the Trustee prior to
the expiration of two years after such Interest Payment Date in order to be
repaid to the Company.

      SECTION 305. Registration, Registration of Transfer and Exchange. The
Company shall cause to be kept at the Corporate Trust Office of the Trustee or
in any office or agency of the Company in a Place of Payment a register for each
series of Securities (the registers maintained in such office or in any such
office or agency of the Company in a Place of Payment being herein sometimes
referred to collectively as the "Security Register") in which, subject to such
reasonable regulations as it may prescribe, the Company shall provide for the
registration of Registered Securities and of transfers of Registered Securities.
The Security Register shall be in written form or any other form capable of
being converted into written form within a reasonable time. The Trustee, at its
Corporate Trust Office, is hereby initially appointed "Security Registrar" for
the purpose of registering Registered Securities and transfers of Registered
Securities on such Security Register as herein provided. In the event that the
Trustee shall cease to be Security Registrar, it shall have the right to
examine, and be provided a copy of, the Security Register at all reasonable
times.

      Subject to the provisions of this Section 305, upon surrender for
registration of transfer of any Registered Security of any series at any office
or agency of the Company in a Place of Payment for that series, the Company
shall execute, and the Trustee shall authenticate and deliver, in the name of
the designated transferee or transferees, one or more new Registered


                                       28
<PAGE>
Securities of the same series, of any authorized denominations and of a like
aggregate principal amount, bearing a number not contemporaneously outstanding,
and containing identical terms and provisions.

      Subject to the provisions of this Section 305, at the option of the
Holder, Registered Securities of any series may be exchanged for other
Registered Securities of the same series, of any authorized denomination or
denominations and of a like aggregate principal amount, containing identical
terms and provisions, upon surrender of the Registered Securities to be
exchanged at any such office or agency. Whenever any such Registered Securities
are so surrendered for exchange, the Company shall execute, and the Trustee
shall authenticate and deliver, the Registered Securities which the Holder
making the exchange is entitled to receive. Unless otherwise specified with
respect to any series of Securities as contemplated by Section 301, Bearer
Securities may not be issued in exchange for Registered Securities.

      If (but only if) permitted by the applicable Board Resolution and (subject
to Section 303) set forth in the applicable Officers' Certificate, or in any
indenture supplemental hereto, delivered as contemplated by Section 301, at the
option of the Holder, Bearer Securities of any series may be exchanged for
Registered Securities of the same series of any authorized denominations and of
a like aggregate principal amount and tenor, upon surrender of the Bearer
Securities to be exchanged at any such office or agency, with all unmatured
coupons and all matured coupons in default thereto appertaining. If the Holder
of a Bearer Security is unable to produce any such unmatured coupon or coupons
or matured coupon or coupons in default, any such permitted exchange may be
effected if the Bearer Securities are accompanied by payment in funds acceptable
to the Company in an amount equal to the face amount of such missing coupon or
coupons, or the surrender of such missing coupon or coupons may be waived by the
Company and the Trustee if there is furnished to them such security or indemnity
as they may require to save each of them and any Paying Agent harmless. If
thereafter the Holder of such Security shall surrender to any Paying Agent any
such missing coupon in respect of which such a payment shall have been made,
such Holder shall be entitled to receive the amount of such payment; provided,
however, that, except as otherwise provided in Section 1002, interest
represented by coupons shall be payable only upon presentation and surrender of
those coupons at an office or agency located outside the United States.
Notwithstanding the foregoing, in case a Bearer Security of any series is
surrendered at any such office or agency in a permitted exchange for a
Registered Security of the same series and like tenor after the close of
business at such office or agency on (i) any Regular Record Date and before the
opening of business at such office or agency on the relevant Interest Payment
Date, or (ii) any Special Record Date and before the opening of business at such
office or agency on the related proposed date for payment of Defaulted Interest,
such Bearer Security shall be surrendered without the coupon relating to such
Interest Payment Date or proposed date for payment, as the case may be, and
interest or Defaulted Interest, as the case may be, will not be payable on such
Interest Payment Date or proposed date for payment, as the case may be, in
respect of the Registered Security issued in exchange for such Bearer Security,
but will be payable only to the Holder of such coupon when due in


                                       29
<PAGE>
accordance with the provisions of this Indenture. Whenever any Securities are so
surrendered for exchange, the Company shall execute, and the Trustee shall
authenticate and deliver, the Securities which the Holder making the exchange is
entitled to receive.

      Notwithstanding the foregoing, except as otherwise specified as
contemplated by Section 301, any permanent Global Security shall be exchangeable
only as provided in this paragraph. If the depository for any permanent Global
Security is The Depository Trust Company ("DTC"), then, unless the terms of such
Global Security expressly permit such Global Security to be exchanged in whole
or in part for definitive Securities, a Global Security may be transferred, in
whole but not in part, only to a nominee of DTC, or by a nominee of DTC to DTC,
or to a successor to DTC for such Global Security selected or approved by the
Company or to a nominee of such successor to DTC. If at any time DTC notifies
the Company that it is unwilling or unable to continue as depository for the
applicable Global Security or Securities or if at any time DTC ceases to be a
clearing agency registered under the Securities Exchange Act of 1934 if so
required by applicable law or regulation, the Company shall appoint a successor
depository with respect to such Global Security or Securities. If (x) a
successor depository for such Global Security or Securities is not appointed by
the Company within 90 days after the Company receives such notice or becomes
aware of such unwillingness, inability or ineligibility, (y) an Event of Default
has occurred and is continuing and the beneficial owners representing a majority
in principal amount of the applicable series of Securities represented by such
Global Security or Securities advise DTC to cease acting as depository for such
Global Security or Securities or (z) the Company, in its sole discretion,
determines at any time that all Outstanding Securities (but not less than all)
of any series issued or issuable in the form of one or more Global Securities
shall no longer be represented by such Global Security or Securities, then the
Company shall execute, and the Trustee shall authenticate and deliver definitive
Securities of like series, rank, tenor and terms in definitive form in an
aggregate principal amount equal to the principal amount of such Global Security
or Securities. If any beneficial owner of an interest in a permanent global
Security is otherwise entitled to exchange such interest for Securities of such
series and of like tenor and principal amount of another authorized form and
denomination, as specified as contemplated by Section 301 and provided that any
applicable notice provided in the permanent Global Security shall have been
given, then without unnecessary delay but in any event not later than the
earliest date on which such interest may be so exchanged, the Company shall
execute, and the Trustee shall authenticate and deliver definitive Securities in
aggregate principal amount equal to the principal amount of such beneficial
owner's interest in such permanent Global Security. On or after the earliest
date on which such interests may be so exchanged, such permanent Global Security
shall be surrendered for exchange by DTC or such other depository as shall be
specified in the Company Order with respect thereto to the Trustee, as the
Company's agent for such purpose; provided, however, that no such exchanges may
occur during a period beginning at the opening of business 15 days before any
selection of Securities to be redeemed and ending on the relevant Redemption
Date if the Security for which exchange is requested may be among those selected
for redemption; and provided further that no Bearer Security delivered in
exchange for a portion of a permanent Global Security shall be mailed or


                                       30
<PAGE>
otherwise delivered to any location in the United States. If a Registered
Security is issued in exchange for any portion of a permanent Global Security
after the close of business at the office or agency where such exchange occurs
on (i) any Regular Record Date and before the opening of business at such office
or agency on the relevant Interest Payment Date, or (ii) any Special Record Date
and the opening of business at such office or agency on the related proposed
date for payment of Defaulted Interest, interest or Defaulted Interest, as the
case may be, will not be payable on such Interest Payment Date or proposed date
for payment, as the case may be, in respect of such Registered Security, but
will be payable on such Interest Payment Date or proposed date for payment, as
the case may be, only to the Person to whom interest in respect of such portion
of such permanent Global Security is payable in accordance with the provisions
of this Indenture.

      All Securities issued upon any registration of transfer or exchange of
Securities shall be the valid obligations of the Company, evidencing the same
debt, and entitled to the same benefits under this Indenture, as the Securities
surrendered upon such registration of transfer or exchange.

      Every Registered Security presented or surrendered for registration of
transfer or for exchange or redemption shall (if so required by the Company or
the Security Registrar) be duly endorsed, or be accompanied by a written
instrument of transfer in form satisfactory to the Company and the Security
Registrar, duly executed by the Holder thereof or his attorney duly authorized
in writing.

      No service charge shall be made for any registration of transfer or
exchange of Securities, but the Company may require payment of a sum sufficient
to cover any tax or other governmental charge that may be imposed in connection
with any registration of transfer or exchange of Securities, other than
exchanges pursuant to Section 304, 906, 1107 or 1305 not involving any transfer.

      The Company or the Trustee, as applicable, shall not be required (i) to
issue, register the transfer of or exchange any Security if such Security may be
among those selected for redemption during a period beginning at the opening of
business 15 days before selection of the Securities to be redeemed under Section
1103 and ending at the close of business on (A) if such Securities are issuable
only as Registered Securities, the day of the mailing of the relevant notice of
redemption and (B) if such Securities are issuable as Bearer Securities, the day
of the first publication of the relevant notice of redemption or, if such
Securities are also issuable as Registered Securities and there is no
publication, the mailing of the relevant notice of redemption, or (ii) to
register the transfer of or exchange any Registered Security so selected for
redemption in whole or in part, except, in the case of any Registered Security
to be redeemed in part, the portion thereof not to be redeemed, or (iii) to
exchange any Bearer Security so selected for redemption except that such a
Bearer Security may be exchanged for a Registered Security of that series and
like tenor, provided that such Registered Security shall be simultaneously
surrendered for redemption, or (iv) to issue, register the transfer of or


                                       31
<PAGE>
exchange any Security which has been surrendered for repayment at the option of
the Holder, except the portion, if any, of such Security not to be so repaid.

      SECTION 306. Mutilated, Destroyed, Lost and Stolen Securities. If any
mutilated Security or a Security with a mutilated coupon appertaining to it is
surrendered to the Trustee or the Company, together with, in proper cases, such
security or indemnity as may be required by the Company or the Trustee to save
each of them or any agent of either of them harmless, the Company shall execute
and the Trustee shall authenticate and deliver in exchange therefor a new
Security of the same series and principal amount, containing identical terms and
provisions and bearing a number not contemporaneously outstanding, with coupons
corresponding to the coupons, if any, appertaining to the surrendered Security.

      If there shall be delivered to the Company and to the Trustee (i) evidence
to their satisfaction of the destruction, loss or theft of any Security or
coupon, and (ii) such security or indemnity as may be required by them to save
each of them and any agent of either of them harmless, then, in the absence of
notice to the Company or the Trustee that such Security or coupon has been
acquired by a bona fide purchaser, the Company shall execute and upon its
request the Trustee shall authenticate and deliver, in lieu of any such
destroyed, lost or stolen Security or in exchange for the Security to which a
destroyed, lost or stolen coupon appertains (with all appurtenant coupons not
destroyed, lost or stolen), a new Security of the same series and principal
amount, containing identical terms and provisions and bearing a number not
contemporaneously outstanding, with coupons corresponding to the coupons, if
any, appertaining to such destroyed, lost or stolen Security or to the Security
to which such destroyed, lost or stolen coupon appertains.

      Notwithstanding the provisions of the previous two paragraphs, in case any
such mutilated, destroyed, lost or stolen Security or coupon has become or is
about to become due and payable, the Company in its discretion may, instead of
issuing a new Security, with coupons corresponding to the coupons, if any,
appertaining to such destroyed, lost or stolen Security or to the Security to
which such destroyed, lost or stolen coupon appertains, pay such Security or
coupon; provided, however, that payment of principal of (and premium or
Make-Whole Amount, if any), and any interest on, Bearer Securities shall, except
as otherwise provided in Section 1002, be payable only at an office or agency
located outside the United States and, unless otherwise specified as
contemplated by Section 301, any interest on Bearer Securities shall be payable
only upon presentation and surrender of the coupons appertaining thereto.

      Upon the issuance of any new Security under this Section, the Company may
require the payment of a sum sufficient to cover any tax or other governmental
charge that may be imposed in relation thereto and any other expenses (including
the fees and expenses of the Trustee) connected therewith.


                                       32
<PAGE>
      Every new Security of any series with its coupons, if any, issued pursuant
to this Section in lieu of any destroyed, lost or stolen Security, or in
exchange for a Security to which a destroyed, lost or stolen coupon appertains,
shall constitute an original additional contractual obligation of the Company,
whether or not the destroyed, lost or stolen Security and its coupons, if any,
or the destroyed, lost or stolen coupon shall be at any time enforceable by
anyone, and shall be entitled to all the benefits of this Indenture equally and
proportionately with any and all other Securities of that series and their
coupons, if any, duly issued hereunder.

      The provisions of this Section are exclusive and shall preclude (to the
extent lawful) all other rights and remedies with respect to the replacement or
payment of mutilated, destroyed, lost or stolen Securities or coupons.

      SECTION 307. Payment of Interest; Interest Rights Preserved. Except as
otherwise specified with respect to a series of Securities in accordance with
the provisions of Section 301, interest on any Registered Security that is
payable, and is punctually paid or duly provided for, on any Interest Payment
Date shall be paid to the Person in whose name that Security (or one or more
Predecessor Securities) is registered at the close of business on the Regular
Record Date for such interest at the office or agency of the Company maintained
for such purpose pursuant to Section 1002; provided, however, that each
installment of interest on any Registered Security may at the Company's option
be paid by (i) mailing a check for such interest, payable to or upon the written
order of the Person entitled thereto pursuant to Section 308, to the address of
such Person as it appears on the Security Register or (ii) transfer to an
account maintained by the payee located inside the United States.

      Unless otherwise provided as contemplated by Section 301 with respect to
the Securities of any series, payment of interest may be made, in the case of a
Bearer Security, by transfer to an account maintained by the payee with a bank
located outside the United States.

      Unless otherwise provided as contemplated by Section 301, every permanent
global Security will provide that interest, if any, payable on any Interest
Payment Date will be paid to DTC, Euroclear and/or CEDEL, as the case may be,
with respect to that portion of such permanent global Security held for its
account by Cede & Co. or the Common Depository, as the case may be, for the
purpose of permitting such party to credit the interest received by it in
respect of such permanent global Security to the accounts of the beneficial
owners thereof.

      In case a Bearer Security of any series is surrendered in exchange for a
Registered Security of such series after the close of business (at an office or
agency in a Place of Payment for such series) on any Regular Record Date and
before the opening of business (at such office or agency) on the next succeeding
Interest Payment Date, such Bearer Security shall be surrendered without the
coupon relating to such Interest Payment Date and interest will not be payable
on such Interest Payment Date in respect of the Registered Security issued in
exchange for such Bearer Security, but will be payable only to the Holder of
such coupon when due in accordance with the provisions of this Indenture.


                                       33
<PAGE>
      Except as otherwise specified with respect to a series of Securities in
accordance with the provisions of Section 301, any interest on any Registered
Security of any series that is payable, but is not punctually paid or duly
provided for, on any Interest Payment Date (herein called "Defaulted Interest")
shall forthwith cease to be payable to the registered Holder thereof on the
relevant Regular Record Date by virtue of having been such Holder, and such
Defaulted Interest may be paid by the Company, at its election in each case, as
provided in clause (1) or (2) below:

                  (1) The Company may elect to make payment of any Defaulted
      Interest to the Persons in whose names the Registered Securities of such
      series (or their respective Predecessor Securities) are registered at the
      close of business on a Special Record Date for the payment of such
      Defaulted Interest, which shall be fixed in the following manner. The
      Company shall notify the Trustee in writing of the amount of Defaulted
      Interest proposed to be paid on each Registered Security of such series
      and the date of the proposed payment (which shall not be less than 20 days
      after such notice is received by the Trustee), and at the same time the
      Company shall deposit with the Trustee an amount of money in the currency
      or currencies, currency unit or units or composite currency or currencies
      in which the Securities of such series are payable (except as otherwise
      specified pursuant to Section 301 for the Securities of such series) equal
      to the aggregate amount proposed to be paid in respect of such Defaulted
      Interest or shall make arrangements satisfactory to the Trustee for such
      deposit on or prior to the date of the proposed payment, such money when
      deposited to be held in trust for the benefit of the Persons entitled to
      such Defaulted Interest as in this clause provided. Thereupon the Trustee
      shall fix a Special Record Date for the payment of such Defaulted Interest
      which shall be not more than 15 days and not less than 10 days prior to
      the date of the proposed payment and not less than 10 days after the
      receipt by the Trustee of the notice of the proposed payment. The Trustee
      shall promptly notify the Company of such Special Record Date and, in the
      name and at the expense of the Company, shall cause notice of the proposed
      payment of such Defaulted Interest and the Special Record Date therefor to
      be mailed, first-class postage prepaid, to each Holder of Registered
      Securities of such series at his address as it appears in the Security
      Register not less than 10 days prior to such Special Record Date. The
      Trustee may, in its discretion, in the name and at the expense of the
      Company, cause a similar notice to be published at least once in an
      Authorized Newspaper in each Place of Payment, but such publications shall
      not be a condition precedent to the establishment of such Special Record
      Date. Notice of the proposed payment of such Defaulted Interest and the
      Special Record Date therefor having been mailed as aforesaid, such
      Defaulted Interest shall be paid to the Persons in whose names the
      Registered Securities of such series (or their respective Predecessor
      Securities) are registered at the close of business on such Special Record
      Date and shall no longer be payable pursuant to the following clause (2).
      In case a Bearer Security of any series is surrendered at the office or
      agency in a Place of Payment for such series in exchange for a Registered
      Security of such series after the close of business at such office or
      agency on any Special Record Date and


                                       34
<PAGE>
      before the opening of business at such office or agency on the related
      proposed date for payment of Defaulted Interest, such Bearer Security
      shall be surrendered without the coupon relating to such proposed date of
      payment and Defaulted Interest will not be payable on such proposed date
      of payment in respect of the Registered Security issued in exchange for
      such Bearer Security, but will be payable only to the Holder of such
      coupon when due in accordance with the provisions of this Indenture.

                  (2) The Company may make payment of any Defaulted Interest on
      the Registered Securities of any series in any other lawful manner not
      inconsistent with the requirements of any securities exchange on which
      such Securities may be listed, and upon such notice as may be required by
      such exchange, if, after notice given by the Company to the Trustee of the
      proposed payment pursuant to this clause, such manner of payment shall be
      deemed practicable by the Trustee.

      Subject to the foregoing provisions of this Section and Section 305, each
Security delivered under this Indenture upon registration of transfer of or in
exchange for or in lieu of any other Security shall carry the rights to interest
accrued and unpaid, and to accrue, which were carried by such other Security.

      SECTION 308. Persons Deemed Owners. Prior to due presentment of a
Registered Security for registration of transfer, the Company, the Trustee and
any agent of the Company or the Trustee may treat the Person in whose name such
Registered Security is registered as the owner of such Security for the purpose
of receiving payment of principal of (and premium or Make-Whole Amount, if any),
and (subject to Sections 305 and 307) interest on, such Registered Security and
for all other purposes whatsoever, whether or not such Registered Security be
overdue, and neither the Company, the Trustee nor any agent of the Company or
the Trustee shall be affected by notice to the contrary. All such payments so
made to any such Person, or upon such Person's order, shall be valid, and, to
the extent of the sum or sums so paid, effectual to satisfy and discharge the
liability for money payable upon any such Security.

      Title to any Bearer Security and any coupons appertaining thereto shall
pass by delivery. The Company, the Trustee and any agent of the Company or the
Trustee may treat the Holder of any Bearer Security and the Holder of any coupon
as the absolute owner of such Security or coupon for the purpose of receiving
payment thereof or on account thereof and for all other purposes whatsoever,
whether or not such Security or coupon be overdue, and neither the Company, the
Trustee nor any agent of the Company or the Trustee shall be affected by notice
to the contrary.

      No holder of any beneficial interest in any Global Security held on its
behalf by a depository shall have any rights under this Indenture with respect
to such Global Security and such depository (which is the Holder of such
security) shall be treated by the Company, the Trustee, and any agent of the
Company or the Trustee as the owner of such Global Security for all purposes
whatsoever. None of the Company, the Trustee, any Paying Agent or the


                                       35
<PAGE>
Security Registrar will have any responsibility or liability for any aspect of
the records relating to or payments made on account of beneficial ownership
interests of a Global Security or for maintaining, supervising or reviewing any
records relating to such beneficial ownership interests.

      Notwithstanding the foregoing, with respect to any Global Security,
nothing herein shall prevent the Company, the Trustee, or any agent of the
Company or the Trustee, from giving effect to any written certification, proxy
or other authorization furnished by any depository, as a Holder, with respect to
such Global Security or impair, as between such depository and owners of
beneficial interests in such Global Security, the operation of customary
practices governing the exercise of the rights of such depository (or its
nominee) as Holder of such Global Security.

      SECTION 309. Cancellation. All Securities and coupons surrendered for
payment, redemption, repayment at the option of the Holder, registration of
transfer or exchange or for credit against any sinking fund payment shall, if
surrendered to any Person other than the Trustee, be delivered to the Trustee,
and any such Securities and coupons and Securities and coupons surrendered
directly to the Trustee for any such purpose shall be promptly cancelled by it.
The Company may at any time deliver to the Trustee for cancellation any
Securities previously authenticated and delivered hereunder which the Company
may have acquired in any manner whatsoever, and may deliver to the Trustee (or
to any other Person for delivery to the Trustee) for cancellation any Securities
previously authenticated hereunder which the Company has not issued and sold,
and all Securities so delivered shall be promptly cancelled by the Trustee. If
the Company shall so acquire any of the Securities, however, such acquisition
shall not operate as a redemption or satisfaction of the indebtedness
represented by such Securities unless and until the same are surrendered to the
Trustee for cancellation. No Securities shall be authenticated in lieu of or in
exchange for any Securities cancelled as provided in this Section, except as
expressly permitted by this Indenture. Cancelled Securities and coupons held by
the Trustee shall be destroyed by the Trustee and the Trustee shall deliver a
certificate of such destruction to the Company, unless the Trustee is otherwise
directed by a Company Order.

      SECTION 310. Computation of Interest. Except as otherwise specified as
contemplated by Section 301 with respect to Securities of any series, interest
on the Securities of each series shall be computed on the basis of a 360-day
year consisting of twelve 30-day months.


                    ARTICLE FOUR - SATISFACTION AND DISCHARGE

      SECTION 401. Satisfaction and Discharge of Indenture. This Indenture shall
upon Company Request cease to be of further effect with respect to any series of
Securities specified in such Company Request (except as to any surviving rights
of registration of transfer or


                                       36
<PAGE>
exchange of Securities of such series herein expressly provided for), and the
Trustee, upon receipt of a Company Order, and at the expense of the Company,
shall execute instruments in form and substance satisfactory to the Trustee and
the Company acknowledging satisfaction and