SECURITY CAPITAL GROUP INC/
S-3, 1998-09-30
REAL ESTATE
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<PAGE>
 
  AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON SEPTEMBER 30, 1998
 
                                                     REGISTRATION NO. 333-
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
                      SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, DC 20549
                                --------------
                                   FORM S-3
                            REGISTRATION STATEMENT
                                     UNDER
                          THE SECURITIES ACT OF 1933
                                --------------
                      SECURITY CAPITAL GROUP INCORPORATED
            (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
               MARYLAND                              36-3692698
       (STATE OF INCORPORATION)            (I.R.S. EMPLOYER IDENTIFICATION
                                                       NUMBER)
                125 LINCOLN AVENUE, SANTA FE, NEW MEXICO 87501
                                (505) 982-9292
  (ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE, OF
                   REGISTRANT'S PRINCIPAL EXECUTIVE OFFICES)
                          JEFFREY A. KLOPF, SECRETARY
                125 LINCOLN AVENUE, SANTA FE, NEW MEXICO 87501
                                (505) 982-9292
(NAME, ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE,
                             OF AGENT FOR SERVICE)
                              COPY OF SERVICE TO:
                             EDWARD J. SCHNEIDMAN
                             MAYER, BROWN & PLATT
               190 SOUTH LASALLE STREET, CHICAGO, ILLINOIS 60603
                                (312) 782-0600
                                --------------
  APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC: From time
to time after the Registration Statement becomes effective.
  If the only securities being registered on this form are being offered
pursuant to dividend or interest reinvestment plans, please check the
following box: [_]
  If any of the securities being registered on this form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or
interest reinvestment plans, check the following box: [X]
  If this form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following
box and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering: [_]
  If this form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering: [_]
  If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box: [_]
                        CALCULATION OF REGISTRATION FEE
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<TABLE>
<CAPTION>
TITLE OF EACH CLASS OF SECURITY TO BE REGISTERED  PROPOSED MAXIMUM AGGREGATE
                                                        OFFERING PRICE         AMOUNT OF REGISTRATION FEE(1)
- ------------------------------------------------------------------------------------------------------------
<S>                                              <C>                           <C>
Debt Securities................................               (2)                           --
- ------------------------------------------------------------------------------------------------------------
Preferred Stock, par value $.01 per share......               (2)                           --
- ------------------------------------------------------------------------------------------------------------
Class A Common Stock, par value $.01 per
 share.........................................             (2)(3)                          --
- ------------------------------------------------------------------------------------------------------------
Class B Common Stock, par value $.01 per
 share.........................................             (2)(3)                          --
- ------------------------------------------------------------------------------------------------------------
Securities Warrants............................             (2)(3)                          --
- ------------------------------------------------------------------------------------------------------------
Total..........................................         $1,000,000,000                   $295,000
- ------------------------------------------------------------------------------------------------------------
</TABLE>
- -------------------------------------------------------------------------------
(1) Pursuant to Rule 457(o) under the Securities Act of 1933, the registration
    fee has been calculated on the basis of the maximum aggregate offering
    price of all the securities listed.
(2) In no event will the aggregate offering price of Debt Securities,
    Preferred Stock, Common Stock and Securities Warrants registered under
    this registration statement exceed $1,000,000,000.
(3) There is hereby registered such indeterminate amount of Common Stock as
    may be issued upon exercise of Securities Warrants and upon conversion of
    Preferred Stock registered hereunder. No separate consideration will be
    received for Common Stock issued in exchange for, or upon conversion of,
    Debt Securities or Preferred Stock. Also registered is an indeterminate
    amount of Preferred Share Purchase Rights associated with such Common
    Stock.
                                --------------
  THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT
SHALL FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS
REGISTRATION STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH
SECTION 8(A) OF THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT
SHALL BECOME EFFECTIVE ON SUCH DATE AS THE SECURITIES AND EXCHANGE COMMISSION,
ACTING PURSUANT TO SAID SECTION 8(A), MAY DETERMINE.
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<PAGE>
 
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+INFORMATION CONTAINED HEREIN IS SUBJECT TO COMPLETION OR AMENDMENT. A         +
+REGISTRATION STATEMENT RELATING TO THESE SECURITIES HAS BEEN FILED WITH THE   +
+SECURITIES AND EXCHANGE COMMISSION. THESE SECURITIES MAY NOT BE SOLD NOR MAY  +
+OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION STATEMENT        +
+BECOMES EFFECTIVE. THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL OR   +
+THE SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE      +
+SECURITIES IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR SALE WOULD BE    +
+UNLAWFUL PRIOR TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF  +
+ANY SUCH STATE.                                                               +
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
     SUBJECT TO COMPLETION, PRELIMINARY PROSPECTUS DATED SEPTEMBER 30, 1998
 
PROSPECTUS
 
                                 $1,000,000,000
 
                      SECURITY CAPITAL GROUP INCORPORATED
 
   DEBT SECURITIES, PREFERRED SHARES, COMMON SHARES, SECURITIES WARRANTS AND
                                     RIGHTS
 
  Security Capital Group Incorporated ("Security Capital") may from time to
time offer and sell in one or more series (i) its unsecured debt securities
("Debt Securities"), which may be senior debt securities ("Senior Debt
Securities") or subordinated debt securities ("Subordinated Debt Securities");
(ii) shares of its preferred stock, par value $.01 per share ("Preferred
Shares"); (iii) shares of its Class A Common Stock, par value $.01 per share
(the "Class A Shares"), and Class B Common Stock, par value $.01 per share (the
"Class B Shares"; and together with the Class A Shares, the "Common Shares");
and (iv) warrants to purchase Debt Securities (the "Debt Securities Warrants"),
warrants to purchase Preferred Shares (the "Preferred Shares Warrants") and
warrants to purchase Common Shares (the "Common Shares Warrants"), with an
aggregate public offering price of up to $1,000,000,000, on terms to be
determined by market conditions at the time of offering. In addition, Security
Capital may issue in the form of a dividend, shareholder purchase rights
entitling owners of Common Shares to subscribe for and purchase Common Shares
(the "Rights"). The Debt Securities Warrants, the Preferred Shares Warrants and
the Common Shares Warrants shall be referred to herein collectively as the
"Securities Warrants." The Debt Securities, Preferred Shares, Common Shares,
Securities Warrants and Rights (collectively, the "Offered Securities") may be
offered separately or together, in separate series, in amounts, at prices and
on terms to be set forth in a supplement to this Prospectus (a "Prospectus
Supplement").
 
  The specific terms of the Offered Securities in respect of which this
Prospectus is being delivered will be set forth in the applicable Prospectus
Supplement and will include, if applicable: (i) in the case of Debt Securities,
the specific title, aggregate principal amount, ranking as Senior Debt
Securities or as Subordinated Debt Securities, currency, form (which may be
registered or bearer, or certificated or global), authorized denominations,
maturity, rate (or manner of calculation thereof) and time of payment of
interest, terms for redemption at the option of Security Capital or repayment
at the option of the holder, terms of any sinking fund payments, and the
initial public offering price, along with any other relevant specific terms;
(ii) in the case of Preferred Shares, the designation, any liquidation,
dividend, redemption, conversion, voting and other rights, and the initial
public offering price, along with any other relevant specific terms; (iii) in
the case of Common Shares, the initial public offering price; and (iv) in the
case of Securities Warrants, the duration, offering price, exercise price and
detachability, along with any other relevant specific terms. In addition, such
specific terms may include limitations on direct or beneficial ownership and
restrictions on transfer of the Offered Securities, in each case in accordance
with the terms of the Articles of Amendment and Restatement of Security Capital
(the "Charter").
 
  The applicable Prospectus Supplement will also contain information, if
applicable, about certain U.S. Federal income tax considerations relating to,
and any listing on a securities exchange of, the Offered Securities covered by
such Prospectus Supplement.
 
  The Offered Securities may be offered directly by Security Capital, through
agents designated from time to time by Security Capital or to or through
underwriters or dealers. If any agents or underwriters are involved in the sale
of any of the Offered Securities, their names, and any applicable purchase
price, fee, commission or discount arrangement between or among them, will be
set forth, or will be calculable from the information set forth, in the
applicable Prospectus Supplement. See "Plan of Distribution." No Offered
Securities may be sold without delivery of the applicable Prospectus Supplement
describing the method and terms of the offering of such Offered Securities.
 
                                  -----------
 
 THESE SECURITIES HAVE NOT BEEN APPROVED  OR DISAPPROVED BY THE SECURITIES AND
  EXCHANGE  COMMISSION  OR  ANY  STATE  SECURITIES  COMMISSION  NOR  HAS  THE
    SECURITIES AND EXCHANGE  COMMISSION OR ANY  STATE SECURITIES  COMMISSION
     PASSED  UPON  THE  ACCURACY  OR  ADEQUACY  OF  THIS  PROSPECTUS.  ANY
      REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
 
                                  -----------
 
                  The date of this Prospectus is        , 1998
<PAGE>
 
                             AVAILABLE INFORMATION
 
  Security Capital is subject to the informational requirements of the
Securities Exchange Act of 1934, as amended (the "Exchange Act"), and, in
accordance therewith, files reports, proxy and information statements and
other information with the Securities and Exchange Commission (the
"Commission"). Reports, proxy and information statements and other information
filed by Security Capital can be inspected and copied at the public reference
facilities maintained by the Commission at 450 Fifth Street, N.W., Washington,
D.C. 20549 and at its regional offices at Citicorp Center, 500 West Madison
Street, Chicago, Illinois 60661 and Seven World Trade Center, New York, New
York 10048. Copies of such material can be obtained from the Public Reference
Section of the Commission at 450 Fifth Street, N.W., Washington, D.C. 20549 at
prescribed rates. The Commission maintains a Web site which contains such
reports, proxy and information statements and other information at
http://www.sec.gov. Security Capital's outstanding Class A Shares and Class B
Shares are listed on the NYSE under the symbols "SCZ.A" and "SCZ.B",
respectively, and all reports, proxy and information statements and other
information concerning Security Capital may be inspected at the offices of the
NYSE at 20 Broad Street, New York, New York 10005.
 
  Security Capital has filed with the Commission a registration statement on
Form S-3 (together with all amendments and exhibits, the "Registration
Statement") under the Securities Act, with respect to the securities offered
hereby. This prospectus ("Prospectus"), which constitutes a part of the
Registration Statement, does not contain all the information set forth in the
Registration Statement, certain parts of which are omitted as permitted by the
rules and regulations of the Commission. Statements made in this Prospectus as
to the content of any contract, agreement or other document referred to are
not necessarily complete. With respect to each such contract, agreement or
other document which is filed or incorporated by reference as an exhibit to
the Registration Statement, reference is made to the exhibit for a more
complete description, and each such statement will be deemed qualified in its
entirety by such reference.
 
                          INCORPORATION BY REFERENCE
 
  The following documents filed by Security Capital with the Commission (File
No. 1-13355) pursuant to the Exchange Act are incorporated by reference in
this Prospectus:
 
  (1) Security Capital's Annual Report on Form 10-K for the year ended
      December 31, 1997;
 
  (2) Security Capital's Quarterly Reports on Form 10-Q for the quarters
      ended March 31, 1998 and June 30, 1998;
 
  (3) The description of the Common Shares included in Security Capital's
      Registration Statement on Form 8-A; and
 
  (4) The description of Security Capital's preferred share purchase rights
      included in Security Capital's Registration Statement on Form 8-A.
 
  All documents subsequently filed by Security Capital pursuant to Section
13(a), 13(c), 14 or 15(d) of the Exchange Act prior to the termination of the
offering made hereby will be deemed to be incorporated by reference in this
Prospectus from the date of filing of such documents. Any statement contained
in a document incorporated or deemed to be incorporated by reference herein
will be deemed to be modified or superseded for purposes of this Prospectus to
the extent that a statement contained herein, or in any subsequently filed
document which is incorporated or deemed to be incorporated by reference
herein, modifies or supersedes such statement. Any such statement so modified
or superseded will not be deemed, except as so modified or superseded, to
constitute a part of this Prospectus.
 
  Security Capital will provide without charge to each person, including any
beneficial owner, to whom this Prospectus is delivered, upon written or oral
request of such person, a copy of any and all of the information which has
been incorporated by reference herein (not including exhibits to such
information unless such exhibits are specifically incorporated by reference in
such information). Requests should be directed to Security Capital Group
Incorporated, 125 Lincoln Avenue, Santa Fe, New Mexico 87501 Attention:
Secretary, telephone (505) 982-9292.
 
                                       2
<PAGE>
 
                      SECURITY CAPITAL GROUP INCORPORATED
 
  SECURITY CAPITAL, a Maryland corporation, is a global real estate research,
investment and operating management company. Security Capital operates its
businesses through two divisions. The Capital Division generates EBDADT
(earnings before depreciation, amortization and deferred taxes) principally
from its pro rata ownership of public and private strategic real estate
operating company investments. The Services Division derives EBDADT through
service fees from the Real Estate Research Group, Global Capital Management
Group and Financial Services Group.
 
  The CAPITAL DIVISION'S Global Strategic Group ("GSG") provides business
strategy and operating and capital deployment oversight to the companies in
which Security Capital has direct and indirect strategic ownership positions.
Since its inception, GSG has directed significant expenditures, both in the
U.S. and internationally, in research and development to create new, fully
integrated, value-added operating companies with proprietary customer-delivery
systems. GSG works closely with the management of affiliated public and
private start-up investees to ensure their long-term sustainable cash flow
growth. GSG oversees strategic investments in public and private real estate
operating companies focused on international distribution, multifamily
communities, neighborhood infill shopping centers, urban infill retail,
parking, corporate office, self-storage, hotels, corporate extended-stay
lodging, assisted-living residential communities, manufactured housing
communities and residential properties. GSG also oversees several new niche
businesses that are currently at various stages of research and development.
 
  The SERVICES DIVISION'S Real Estate Research Group ("RERG") conducts
proprietary real estate research and provides analysis of long-term market
conditions and short-term trends to Security Capital's direct and indirect
investees. The Global Capital Management Group ("GCMG") manages capital
invested in real estate securities with both short to intermediate-term and
long-term investment objectives. The Financial Services Group ("FSG") provides
administrative and capital markets services to various affiliated operating
companies and investment entities.
 
  Management believes the global real estate industry is experiencing a
transition from ownership in "passive hands" to becoming a securitized
industry with a focus on capital allocation and operating management. As
public real estate investment enterprises become more prevalent, a greater
percentage of the industry's new capital is moving to publicly traded, fully
integrated, value-added operating companies. Securitized holdings offer
significant benefits to institutional and retail investors, including enhanced
liquidity, real-time pricing and the opportunity for optimal growth and
sustainable competitive rates of return. Security Capital's strategy is to
create the optimal organization to lead and profit from real estate
securitization.
 
  The principal offices of Security Capital and its directly owned affiliates
are in Atlanta, Brussels, Chicago, Denver, El Paso, London, Luxembourg, New
York, San Francisco and Santa Fe. Security Capital's executive offices are
located at 125 Lincoln Avenue, Santa Fe, New Mexico 87501, and its telephone
number is (505) 982-9292. Security Capital is a Maryland corporation.
 
                                USE OF PROCEEDS
 
  Unless otherwise described in the applicable Prospectus Supplement, Security
Capital intends to use the net proceeds from the sale of the Offered
Securities for the allocation of capital to new businesses, for the repayment
of certain outstanding indebtedness at such time and for general corporate
purposes.
 
                                       3
<PAGE>
 
                  RATIO OF EARNINGS TO COMBINED FIXED CHARGES
                         AND PREFERRED SHARE DIVIDENDS
 
  For the purpose of computing these ratios, (i) "earnings" consist of
earnings from operations plus fixed charges other than capitalized interest
and (ii) "fixed charges" consist of interest on borrowed funds (including
capitalized interest) and amortization of debt discount and expense.
 
<TABLE>
<CAPTION>
                                                                    SIX MONTHS
                                                                      ENDED
                                         YEAR ENDED DECEMBER 31,     JUNE 30,
                                       --------------------------- ------------
                                       1993 1994 1995(A) 1996 1997 1997 1998(B)
                                       ---- ---- ------- ---- ---- ---- -------
   <S>                                 <C>  <C>  <C>     <C>  <C>  <C>  <C>
   Ratio of earnings to combined
    fixed charges and Preferred Share
    dividends........................  3.1  1.2    0.8   0.8  0.8  0.4    1.7
</TABLE>
- --------
(a) Excludes a one-time non-cash expense item ($158.4 million) incurred in
    acquiring the Services Division from a related party.
(b) Excludes a one-time non-cash dividend of $19.8 million incurred in
    conjunction with the exchange by the holder thereof of Security Capital's
    Series A Preferred Shares for its Series B Preferred Shares.
 
                      RATIO OF EARNINGS TO FIXED CHARGES
 
  For the purpose of computing these ratios, (i) "earnings" consist of
earnings from operations plus fixed charges other than capitalized interest
and (ii) "fixed charges" consist of interest on borrowed funds (including
capitalized interest) and amortization of debt discount and expense.
 
<TABLE>
<CAPTION>
                                                                         SIX
                                                                       MONTHS
                                                                        ENDED
                                            YEAR ENDED DECEMBER 31,   JUNE 30,
                                          --------------------------- ---------
                                          1993 1994 1995(A) 1996 1997 1997 1998
                                          ---- ---- ------- ---- ---- ---- ----
   <S>                                    <C>  <C>  <C>     <C>  <C>  <C>  <C>
   Ratio of earnings to fixed charges.... 3.1  1.2    0.8   0.8  0.8  0.5  2.0
</TABLE>
- --------
(a) Excludes a one-time non-cash expense item ($158.4 million) incurred in
    acquiring the Services Division from a related party.
 
                        DESCRIPTION OF DEBT SECURITIES
 
  The following description sets forth certain general terms and provisions of
the Debt Securities to which this Prospectus and any applicable Prospectus
Supplement may relate. The Senior Debt Securities will be issued under an
Indenture, as amended or supplemented from time to time (the "Senior
Indenture"), between Security Capital and State Street Bank and Trust Company,
as trustee (the "Trustee"). The Subordinated Debt Securities will be issued
under an Indenture, as amended or supplemented from time to time (the
"Subordinated Indenture"), between Security Capital and the Trustee. The
Senior Indenture and the Subordinated Indenture are sometimes referred to
herein collectively as the "Indentures" and each individually as an
"Indenture". The forms of Indentures have been filed as exhibits to the
Registration Statement of which this Prospectus is a part and are available at
the corporate trust office of the Trustee at Two International Place, Boston,
Massachusetts 02110 or as described above under "Available Information." The
Indentures are subject to, and governed by, the Trust Indenture Act of 1939,
as amended (the "Trust Indenture Act"). The statements made hereunder relating
to the Indentures and the Debt Securities to be issued thereunder are
summaries of certain provisions thereof, do not purport to be complete and are
subject to, and are qualified in their entirety by reference to, all
provisions of the Indentures and such Debt Securities. All section references
appearing herein are to sections of the applicable Indenture, and capitalized
terms used but not defined herein have the respective meanings set forth in
the applicable Indenture.
 
                                       4
<PAGE>
 
GENERAL
 
  The Debt Securities will be direct, unsecured obligations of Security
Capital and will constitute Senior Debt Securities and/or Subordinated Debt
Securities. The Debt Securities effectively will be subordinated to the
secured indebtedness of Security Capital and the indebtedness and other
liabilities of Security Capital's subsidiaries and companies in which Security
Capital has a direct or indirect investment to the extent of the assets of
those subsidiaries and companies. Security Capital and its subsidiaries may
incur additional indebtedness, subject to provisions limiting the incurrence
of additional indebtedness contained in specific Debt Securities, as described
in any applicable Prospectus Supplement.
 
  The Indentures provide that the Debt Securities may be issued without limit
as to aggregate principal amount, in one or more series, in each case as
established from time to time in or pursuant to authority granted by a
resolution of the Board of Directors of Security Capital (the "Board") or as
established in one or more indentures supplemental to the Indentures.
 
  Reference is made to the Prospectus Supplement relating to the Debt
Securities offered thereby for the specific terms of such Debt Securities,
including:
 
  (1) the title of such Debt Securities;
 
  (2) any limit on the aggregate principal amount of such Debt Securities;
 
  (3) the date or dates, or the method for determining such date or dates, on
      which the principal of such Debt Securities will be payable and the
      amount of principal payable thereon;
 
  (4) the rate or rates, or the method by which such rate or rates will be
      determined, at which such Debt Securities will bear interest, if any,
      and the date or dates, or the method for determining such date or
      dates, from which any such interest will accrue, the Interest Payment
      Dates (as defined) on which any such interest will be payable, the
      Regular Record Dates (as defined), if any, for such Interest Payment
      Dates, or the method by which such dates will be determined, and the
      basis on which interest will be calculated if other than a 360-day year
      comprised of twelve 30-day months;
 
  (5) the place or places where the principal of (and premium or Make-Whole
      Amount (as defined), if any, on) and interest and Additional Amounts
      (as defined), if any, on such Debt Securities will be payable, where
      such Debt Securities may be surrendered for registration of transfer or
      exchange and where notices or demands to or on Security Capital in
      respect of such Debt Securities and the Indentures may be served;
 
  (6) the period or periods within which, the price or prices (including the
      premium or Make-Whole Amount, if any) at which, the currency or
      currencies, currency unit or units or composite currency or currencies
      in which, and the other terms and conditions on which, such Debt
      Securities may be redeemed, in whole or in part, at the option of
      Security Capital, if Security Capital is to have such an option;
 
  (7) the obligation, if any, of Security Capital to redeem, repay or
      purchase such Debt 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 date or dates on which, the price or prices
      at which, the currency or currencies, currency unit or units or
      composite currency or currencies in which, and the other terms and
      conditions on which, such Debt Securities will be redeemed, repaid or
      purchased, in whole or in part, pursuant to such obligation;
 
  (8) if other than denominations of $1,000 and any integral multiple
      thereof, the denomination in which such Debt Securities will be
      issuable;
 
  (9) if other than the Trustee, the identity of the Security Registrar (as
      defined) and Paying Agent (as defined);
 
  (10) the percentage of the principal amount at which such Debt Securities
       will be issued and, if other than the full principal amount thereof,
       the portion of the principal amount thereof payable upon declaration
       of acceleration of the maturity thereof, or the method for determining
       such portion;
 
                                       5
<PAGE>
 
  (11) if other than U.S. dollars, the currency or currencies in which the
       principal of (and premium or Make-Whole Amount, if any, on) or
       interest or Additional Amounts, if any, on such Debt Securities are
       denominated and payable;
 
  (12) whether the amount of payments of the principal of (and premium or
       Make-Whole Amount, if any, on) or interest or Additional Amounts, if
       any, on such Debt Securities may be determined with reference to an
       index, formula or other method (which index, formula or method may be
       based, without limitation, on one or more currencies, currency units,
       composite currency or currencies, commodities, equity indices or other
       indices) and the manner in or which such amounts will be determined;
 
  (13) if such Debt Securities are to be issued upon the exercise of Debt
       Securities Warrants, the time, manner and place for such Debt
       Securities to be authenticated and delivered;
 
  (14) the terms, if any, upon which Debt Securities may be convertible into
       Common Shares, Preferred Shares or Debt Securities of another series
       of Security Capital and the terms and conditions upon which such
       conversion will be effected, including, without limitation, the
       initial conversion price or rate and the conversion period;
 
  (15) whether the principal of (and premium or Make-Whole Amount, if any,
       on) or interest or Additional Amounts, if any, on such Debt Securities
       are to be payable, at the election of Security Capital or a Holder, in
       a currency or currencies, currency unit or units or composite currency
       or currencies, other than that in which such Debt Securities are
       denominated or stated to be payable, the period or periods within
       which, and the terms and conditions on 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 in which such Debt 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 Debt Securities are to be so payable;
 
  (16) provisions, if any, granting special rights to the Holders of such
       Debt Securities upon the occurrence of such events as may be
       specified;
 
  (17) any deletions from, modifications of or additions to the terms of such
       Debt Securities with respect to the Events of Default or covenants set
       forth in the Indentures;
 
  (18) whether such Debt Securities are to be issuable in permanent global
       form, and, if so, whether beneficial owners of interests in any such
       permanent Global Security (as defined) may exchange such interests for
       Debt Securities of such series and of like tenor of any authorized
       form and denomination and the circumstances under which any such
       exchanges may occur, and the identity of the Depository (as defined)
       for such series;
 
  (19) the Person to whom any interest on any Debt Security is payable, if
       other than the Person in whose name such Debt Security is registered
       at the close of business on the Regular Record Date for such interest;
 
  (20) the applicability, if any, of the defeasance and covenant defeasance
       provisions of Article Fourteen of the Indentures to such Debt
       Securities and any provisions in modification thereof, in addition
       thereto or in lieu thereof;
 
  (21) if such Debt Securities are to be issuable in definitive form only
       upon receipt of certificates, documents or conditions, the form and
       terms of such certificates, documents or conditions;
 
  (22) whether and under what circumstances Security Capital will pay
       Additional Amounts as contemplated in the Indentures on such Debt
       Securities to any Holder who is not a U.S. person in respect of any
       tax, assessment or governmental charge and, if so, whether Security
       Capital will have the option to redeem such Debt Securities rather
       than pay such Additional Amounts (and the terms of any such option);
 
  (23) the ranking of such Debt Securities as Senior Debt Securities or
       Subordinated Debt Securities; and
 
  (24) any other terms of such Debt Securities not inconsistent with the
       provisions of the Indentures (Section 301), including financial
       covenants, if any.
 
                                       6
<PAGE>
 
  The Debt Securities may provide for less than the entire principal amount
thereof to be payable upon declaration of acceleration of the maturity thereof
or bear no interest or bear interest at a rate which at the time of issuance
is below market rates ("Original Issue Discount Securities"). Special U.S.
Federal income tax, accounting and other considerations applicable to Original
Issue Discount Securities will be described in the applicable Prospectus
Supplement.
 
  Under the Indentures, Security Capital will have the ability, in addition to
the ability to issue Debt Securities with terms different from those of Debt
Securities previously issued, without the consent of the Holders, to reopen a
previous issue of a series of Debt Securities and issue additional Debt
Securities of such series (Section 301).
 
  Except as described in any applicable Prospectus Supplement, the Indentures
do not contain any other provisions which would limit the ability of Security
Capital to incur indebtedness or which would afford Holders of Debt Securities
protection in the event of (i) a highly leveraged or similar transaction
involving Security Capital, the management of Security Capital, or any
affiliate of any such party, (ii) a change of control or (iii) a
reorganization, restructuring, merger or similar transaction involving
Security Capital which may adversely affect the Holders of the Debt
Securities. However, Security Capital's Charter limits beneficial ownership of
the Common Shares, by a single holder or a group of holders, to 9.8% of the
number of Common Shares or value of Common Shares, with certain exceptions.
See "Description of Common Shares--Restriction on Size of Holdings of Shares."
Reference is made to the applicable Prospectus Supplement for information with
respect to any deletions from, modifications of or additions to the Events of
Default or covenants of Security Capital which are described below, including
any addition of a covenant or other provision providing event risk or similar
protection.
 
DENOMINATIONS
 
  Unless otherwise described in the applicable Prospectus Supplement, the Debt
Securities of any series issued in registered form, other than Debt Securities
issued in global form (which may be in any denomination), will be issued only
in denominations of $1,000 and integral multiples thereof (Section 302).
 
PRINCIPAL AND INTEREST
 
  Unless otherwise specified in the applicable Prospectus Supplement, the
principal of (and premium or Make-Whole Amount, if any, on) and interest on
any series of Debt Securities will be payable at the corporate trust office of
the Trustee, initially located at Two International Place, Boston,
Massachusetts 02110; provided that, at the option of Security Capital, payment
of interest may be made by check mailed to the address of the Person entitled
thereto as it appears in the Security Register or by wire transfer of funds to
such Person at an account maintained within the U.S. (Sections 301, 305, 306,
307 and 1002).
 
  If any Interest Payment Date, Principal Payment Date or the Maturity Date
(as such terms are defined) falls on a day which is not a Business Day, the
required payment will be made on the next Business Day as if it were made on
the date such payment was due and no interest will accrue on the amount so
payable for the period from and after such Interest Payment Date or Principal
Payment Date, as the case may be, through and including such next Business Day
(Section 113). "Business Day" means any day, other than a Saturday or Sunday,
on which banks in Boston, Massachusetts are not required or authorized by law
or executive order to close. Any interest not punctually paid or duly provided
for on any Interest Payment Date with respect to a Debt Security ("Defaulted
Interest") will forthwith cease to be payable to the Holder on the applicable
Regular Record Date and either may be paid to the person in whose name such
Debt Security is registered at the close of business on a special record date
(the "Special Record Date") for the payment of such Defaulted Interest to be
fixed by the Trustee, notice of which will be given to the Holder of such Debt
Security not less than 10 days prior to such Special Record Date, or may be
paid at any time in any other lawful manner, all as more completely described
in the Indentures (Section 307).
 
 
                                       7
<PAGE>
 
MERGER, CONSOLIDATION OR SALE OF ASSETS
 
  The Indentures provide that Security Capital will not consolidate or merge
with or into (whether or not Security Capital is the surviving corporation),
or sell, assign, transfer, lease, convey or otherwise dispose of all or
substantially all of the properties or assets of Security Capital in one or
more related transactions, to another Person unless (i) the surviving Person
or the Person formed by or surviving that consolidation or merger (if other
than Security Capital) or to which that sale, assignment, transfer, lease,
conveyance or other disposition was made (the "Surviving Entity") is a
corporation organized or existing under the laws of the United States, any
state thereof or the District of Columbia; (ii) the Surviving Entity assumes
all the obligations of Security Capital under the Debt Securities and the
Indentures pursuant to supplemental indentures in form reasonably satisfactory
to the Trustee; and (iii) immediately before and after giving effect to that
transaction and treating any indebtedness which becomes an obligation of
Security Capital as a result of that transaction as having been incurred by
Security Capital at the time of the transaction, no Event of Default and no
event which, after notice or the lapse of time, or both, would become an Event
of Default has occurred and is continuing; and (iv) an officer's certificate
and legal opinion covering such conditions are delivered to the Trustee
(Sections 801 and 803).
 
CERTAIN COVENANTS
 
  Existence. Except as permitted under "Merger, Consolidation or Sale of
Assets," Security Capital will do or cause to be done all things necessary to
preserve and keep in full force and effect its existence, rights (Charter and
statutory) and franchises; provided, however, that Security Capital will not
be required to preserve any right or franchise if it determines that the
preservation thereof is no longer desirable in the conduct of its business and
that the loss thereof is not disadvantageous in any material respect to the
Holders of the Debt Securities (Section 1004).
 
  Maintenance of Properties. Security Capital will cause all of its properties
used or useful in the conduct of its business or the business of any
Subsidiary to be maintained and kept in good condition, repair and working
order and supplied with all necessary equipment and will cause to be made all
necessary repairs, renewals, replacements, betterments and improvements
thereof, all as in the judgment of Security Capital may be necessary so that
the business carried on in connection therewith may be properly and
advantageously conducted at all times; provided, however, that Security
Capital and its Subsidiaries are not prevented from selling or otherwise
disposing of their properties for value in the ordinary course of business
(Section 1005).
 
  Insurance. Security Capital will, and will cause each of its Subsidiaries
to, keep all of its insurable properties insured against loss or damage at
least equal to their full insurable value with financially sound and reputable
insurance companies (Section 1006).
 
  Payment of Taxes and Other Claims. Security Capital will pay or discharge or
cause to be paid or discharged, before the same becomes delinquent, (i) all
taxes, assessments and governmental charges levied or imposed on it or any
Subsidiary or on the income, profits or property of Security Capital or any
Subsidiary and (ii) all lawful claims for labor, materials and supplies which,
if unpaid, might by law become a lien on the property of Security Capital or
any Subsidiary; provided, however, that Security Capital will not be required
to pay or discharge or cause to be paid or discharged any such tax,
assessment, charge or claim whose amount, applicability or validity is being
contested in good faith by appropriate proceedings (Section 1007).
 
  Reports. The Indentures provide that, whether or not required by the rules
and regulations of the Securities and Exchange Commission (the "Commission"),
so long as any of the Debt Securities are outstanding, Security Capital will
furnish to Holders of such Debt Securities (i) all quarterly and financial
information which would be required to be contained in a filing with the
Commission on Forms 10-Q and 10-K if Security Capital were required to file
those Forms, including "Management's Discussion and Analysis of Financial
Condition and Results of Operations" and, with respect to the annual
information only, a report thereon by Security Capital's independent public
accountants and (ii) all current reports which would be required to be filed
with the
 
                                       8
<PAGE>
 
Commission on Form 8-K if Security Capital were required to file those
reports. In addition, whether or not required by the rules and regulations of
the Commission, Security Capital will file a copy of all such information and
reports with the Commission for public availability and make such information
available to securities analysts and prospective investors upon request.
Security Capital's obligations to provide financial information and reports
will be deemed satisfied to the extent Security Capital provides the Trustee
with a sufficient number of reports for the Trustee to provide or make
available such reports to the Holders. The Trustee, at Security Capital's
expense and written direction, shall promptly mail copies or otherwise make
available to the Holders all such reports (1008).
 
ADDITIONAL COVENANTS AND/OR MODIFICATIONS TO THE COVENANTS DESCRIBED ABOVE
 
  Any additional covenants of Security Capital and/or modifications to the
covenants described above with respect to any Debt Securities or series
thereof will be set forth in a supplement to the applicable Indenture and
described in the Prospectus Supplement relating thereto.
 
EVENTS OF DEFAULT, NOTICE AND WAIVER
 
  The Indentures provide that the following events are "Events of Default"
with respect to any series of Debt Securities issued thereunder: (i) default
which continues for 30 days in the payment of any installment of interest or
Additional Amounts payable on any Debt Security of such series; (ii) default
in the payment of the principal of (or premium or Make-Whole Amount, if any,
on) any Debt Security of such series at its Maturity; (iii) default in making
any sinking fund payment as required for any Debt Security of such series;
(iv) default in the performance, or breach, of any other covenant or warranty
of Security Capital contained in the applicable Indenture (other than a
covenant added to the Indenture solely for the benefit of a series of Debt
Securities issued thereunder other than such series), continued for 60 days
after written notice as provided in such Indenture; (v) any default occurs
under any mortgage, indenture or instrument under which there may be issued or
by which there may be secured or evidenced any indebtedness for money borrowed
by Security Capital or any Significant Subsidiary of Security Capital (or the
payment of which is guaranteed by Security Capital or any Significant
Subsidiary of Security Capital), whether that indebtedness or guarantee exists
on the date of the applicable Indenture or is thereafter created, which
default after the termination of any applicable grace or cure period, (a)
constitutes a Payment Default or (b) results in the acceleration of that
indebtedness prior to its express maturity and, in each case, the principal
amount of any indebtedness, together with the principal amount of any other
such indebtedness under which there has been a Payment Default or which has
been so accelerated, aggregates $25 million or more; provided that, in
calculating the aggregate principal amount of any such Indebtedness, the
Hedging Obligations of any Person under which there has been a Payment Default
or which has been so accelerated shall not be netted against any other Hedging
Obligation of that Person; (vi) failure by Security Capital or any Significant
Subsidiary of Security Capital to pay final judgments aggregating in excess of
$25 million, which judgments are not paid, discharged or stayed for a period
of 60 days; (vii) certain events of bankruptcy or insolvency with respect to
Security Capital or any Significant Subsidiary of Security Capital; and (viii)
any other Event of Default provided with respect to a particular series of
Debt Securities (Section 501). The term "Significant Subsidiary" means a
Subsidiary which otherwise meets the tests ascribed to the term in Regulation
S-X promulgated by the Commission under the Securities Act, except that the
tests therein shall be based on 20% of total assets or income instead of 10%
unless Security Capital owns or controls, directly or indirectly, at least 75%
of the voting power of the Subsidiary's shares of Capital Stock entitled
(without regard to the occurrence of any contingency) to vote in the election
of directors, managers or trustees thereof (with that percentage to be
calculated on a fully diluted basis) in which case the tests shall be based on
10% of total assets or income.
 
  If an Event of Default under either of the Indentures with respect to Debt
Securities of any series at the time Outstanding occurs and is continuing,
then in every such case, unless the principal of all of the Outstanding Debt
Securities of such series has already become due and payable, the Trustee or
the Holders of not less than 25% in principal amount of the Outstanding Debt
Securities of such series may declare the principal (or, if the
 
                                       9
<PAGE>
 
Debt Securities of such series are Original Issue Discount Securities or
Indexed Securities, such portion of the principal as may be specified in the
terms thereof) of, and the Make-Whole Amount, if any, on, all of the Debt
Securities of such series to be due and payable immediately by written notice
thereof to Security Capital and to the Trustee (if given by the Holders);
provided, that in the case of an Event of Default described in clause (vii) at
the preceding paragraph, acceleration is automatic. However, at any time after
such a declaration of acceleration with respect to Debt Securities of such
series has been made, but before a judgment or decree for payment of the money
due has been obtained by the Trustee, the Holders of a majority in principal
amount of the Outstanding Debt Securities of such series may rescind and annul
such declaration and its consequences if (i) Security Capital has paid or
deposited with the Trustee all required payments of the principal of (and
premium or Make-Whole Amount, if any, on) and interest and Additional Amounts,
if any, on the Debt Securities of such series, plus reasonable compensation,
expenses, disbursements and advances of the Trustee and (ii) all Events of
Default, other than the nonpayment of accelerated principal (or premium or
Make-Whole Amount, if any) or interest or Additional Amounts, if any, with
respect to Debt Securities of such series have been cured or waived as
provided in the applicable Indenture (Section 502). Each of the Indentures
also provides that the Holders of not less than a majority in principal amount
of the Outstanding Debt Securities of any series may waive any past default
with respect to such series and its consequences, except a default (i) in the
payment of the principal of (or premium or Make-Whole Amount, if any, on) or
interest or Additional Amounts, if any, on any Debt Security of such series or
(ii) in respect of a covenant or provision contained in the applicable
Indenture which cannot be modified or amended without the consent of the
Holder of each Outstanding Debt Security affected thereby (Section 513).
 
  The Trustee is required to give notice to the Holders of Debt Securities
within 90 days of a default under the applicable Indenture; provided, however,
that the Trustee may withhold notice to the Holders of any series of Debt
Securities of any default with respect to such series (except a default in the
payment of the principal of (or premium or Make-Whole Amount, if any, on) or
interest or Additional Amounts, if any, on any Debt Security of such series or
in the payment of any sinking fund installment in respect of any Debt Security
of such series) if a Responsible Officer of the Trustee considers such
withholding to be in the interest of such Holders (Section 601).
 
  The Indentures provide that no Holders of Debt Securities of any series may
institute any proceedings, judicial or otherwise, with respect to the
Indentures or for any remedy thereunder, except in the case of failure of the
Trustee, for 60 days, to act after it has received a written request to
institute proceedings in respect of an Event of Default from the Holders of
not less than 25% in principal amount of the Outstanding Debt Securities of
such series, as well as an offer of reasonable indemnity (Section 507). This
provision will not prevent, however, any Holder of Debt Securities from
instituting suit for the enforcement of payment of the principal of (and
premium or Make-Whole Amount, if any, on) and interest and Additional Amounts,
if any, on such Debt Securities on or after the respective due dates thereof
(Section 508).
 
  Subject to provisions in the Indentures relating to its duties in case of
default, the Trustee is under no obligation to exercise any of its rights or
powers under the Indentures at the request or direction of any Holders of any
series of Debt Securities then Outstanding under the Indentures, unless such
Holders have offered to the Trustee reasonable security or indemnity (Section
602). The Holders of not less than a majority in principal amount of the
Outstanding Debt Securities of any series will have the right to direct the
time, method and place of conducting any proceeding for any remedy available
to the Trustee, or of exercising any trust or power conferred on the Trustee.
However, the Trustee may refuse to follow any direction which is in conflict
with any law or the Indentures, which may involve the Trustee in personal
liability or which may be unduly prejudicial to the Holders of Debt Securities
of such series not joining therein (Section 512).
 
  Within 135 days after the end of each fiscal year, Security Capital must
deliver to the Trustee a certificate, signed by one of several specified
officers, stating whether or not such officer has knowledge of any default
under the Indentures and, if so, specifying each such default and the nature
and status thereof (Section 1009).
 
 
                                      10
<PAGE>
 
MODIFICATION OF THE INDENTURES
 
  Modifications of and amendments to the Indentures may be made with the
consent of the Holders of not less than a majority in principal amount of all
Outstanding Debt Securities which are affected by such modification or
amendment; provided, however, that no such modification or amendment may,
without the consent of the Holder of each such Debt Security affected thereby,
(i) change the Stated Maturity of the principal of (or premium or Make-Whole
Amount, if any, on), or any installment of principal of or interest or
Additional Amounts, if any, on, any such Debt Security; (ii) reduce the
principal amount of, or the rate or amount of interest on, or any premium or
Make-Whole Amount payable upon redemption of, or any Additional Amounts
payable with respect to, any such Debt Security, or reduce the amount of
principal of an Original Issue Discount Security or Make-Whole Amount, if any,
which would be due and payable upon declaration of acceleration of the
maturity thereof or would be provable in bankruptcy, or adversely affect any
right of repayment of the Holder of any such Debt Security; (iii) change the
Place of Payment, or the currency, for payment of the principal of (or premium
or Make-Whole Amount, if any, on) or interest or Additional Amounts, if any,
on any such Debt Security; (iv) impair the right to institute suit for the
enforcement of any payment on or with respect to any such Debt Security; (v)
reduce the above-stated percentage of Outstanding Debt Securities of any
series necessary to modify or amend the applicable Indenture, to waive
compliance with certain provisions thereof or certain defaults and
consequences thereunder or to reduce the quorum or voting requirements set
forth in the applicable Indenture; or (vi) modify any of the foregoing
provisions or any of the provisions relating to the waiver of certain past
defaults or certain covenants, except to increase the required percentage to
effect such action or to provide that certain other provisions may not be
modified or waived without the consent of the Holder of such Debt Security
(Section 902).
 
  The Holders of at least a majority in principal amount of each series of
Outstanding Debt Securities have the right to waive compliance by Security
Capital with certain covenants in the Indentures (Section 1011).
 
  Modifications of and amendments to the Indentures may be made by Security
Capital and the Trustee without the consent of any Holder of Debt Securities
for any of the following purposes: (i) to evidence the succession of another
Person to Security Capital as obligor under the applicable Indenture; (ii) to
add to the covenants of Security Capital for the benefit of the Holders of all
or any series of Debt Securities or to surrender any right or power conferred
on Security Capital in the applicable Indenture; (iii) to add Events of
Default for the benefit of the Holders of all or any series of Debt
Securities; (iv) to add or change any provisions of the applicable Indenture
to facilitate the issuance of, or to liberalize certain terms of, Debt
Securities in bearer form, or to permit or facilitate the issuance of Debt
Securities in uncertificated form, provided that such action may not adversely
affect the interests of the Holders of the Debt Securities of any series in
any material respect; (v) to change or eliminate any provisions of the
applicable Indenture, provided that any such change or elimination will become
effective only when there are no Debt Securities Outstanding of any series
created prior thereto which are entitled to the benefit of such provision;
(vi) to secure the Debt Securities; (vii) to establish the form or terms of
Debt Securities of any series; (viii) to provide for the acceptance of
appointment by a successor Trustee or facilitate the administration of the
trusts under the applicable Indenture by more than one Trustee; (ix) to cure
any ambiguity in the applicable Indenture, correct or supplement any provision
in the applicable Indenture which may be defective or inconsistent or make any
other changes with respect to matters or questions arising under the
Indenture, provided that such action may not adversely affect the interests of
Holders of Debt Securities of any series in any material respect; (x) to close
the applicable Indenture with respect to the authentication and delivery of
additional series of Debt Securities or to qualify, or maintain qualification
of, the applicable Indenture under the Trust Indenture Act; or (xi) to
supplement any of the provisions of the applicable Indenture to the extent
necessary to permit or facilitate defeasance and discharge of any series of
such Debt Securities, provided that such action may not adversely affect the
interests of the Holders of the Debt Securities of any series in any material
respect (Section 901).
 
  The Indentures provide that, in determining whether the Holders of the
requisite principal amount of Outstanding Debt Securities of a series have
concurred in any request, demand, authorization, direction, notice, consent or
waiver thereunder or whether a quorum is present at a meeting of Holders of
Debt Securities, (i) the
 
                                      11
<PAGE>
 
principal amount of an Original Issue Discount Security which is deemed
Outstanding is the amount of the principal thereof which would be due and
payable as of the date of such determination upon declaration of acceleration
of the maturity thereof; (ii) the principal amount of a Debt Security
denominated in a Foreign Currency which is deemed Outstanding is the U.S.
dollar equivalent, determined on the issue date for such Debt Security, of the
principal amount (or, in the case of an Original Issue Discount Security, the
U.S. dollar equivalent on the issue date of such Debt Security of the amount
determined as provided in clause (i) above); (iii) the principal amount of an
Indexed Security which is deemed Outstanding is the principal face amount of
such Indexed Security at original issuance, unless otherwise provided with
respect to such Indexed Security pursuant to Section 301 of the applicable
Indenture; and (iv) Debt Securities owned by Security Capital or any other
obligor on the Debt Securities or any Affiliate of Security Capital or of such
other obligor are disregarded (Section 101).
 
  The Indentures contain provisions for convening meetings of the Holders of
Debt Securities of a series (Section 1501). A meeting may be called at any
time by the Trustee, and also, upon request, by Security Capital or the
Holders of at least 10% in principal amount of the Outstanding Debt Securities
of such series, in any such case upon notice given as provided in the
applicable Indenture (Section 1502). Except for any consent which must be
given by the Holder of each Debt Security affected by certain modifications of
and amendments to the applicable Indenture, any resolution presented at a
meeting or adjourned meeting duly reconvened at which a quorum is present may
be adopted by the affirmative vote of the Holders of a majority in principal
amount of the Outstanding Debt Securities of such series; provided, however,
that, except as referred to above, any resolution with respect to any request,
demand, authorization, direction, notice, consent, waiver or other action
which may be made, given or taken by the Holders of a specified percentage,
which is less than a majority, in principal amount of the Outstanding Debt
Securities of a series may be adopted at a meeting duly called or adjourned
meeting duly reconvened at which a quorum is present by the affirmative vote
of the Holders of such specified percentage in principal amount of the
Outstanding Debt Securities of such series. Any resolution passed or decision
taken at any meeting of Holders of Debt Securities of any series duly held in
accordance with the applicable Indenture will be binding on all Holders of
Debt Securities of such series. The quorum at any meeting called to adopt a
resolution, and at any reconvened meeting, will be Persons holding or
representing a majority in principal amount of the Outstanding Debt Securities
of a series; provided, however, that if any action is to be taken at such
meeting with respect to a consent or waiver which may be given by the Holders
of not less than a specified percentage in principal amount of the Outstanding
Debt Securities of a series, the Persons holding or representing such
specified percentage in principal amount of the Outstanding Debt Securities of
such series will constitute a quorum (Section 1504).
 
  Notwithstanding the foregoing provisions, if any action is to be taken at a
meeting of Holders of Debt Securities of any series with respect to any
request, demand, authorization, direction, notice, consent, waiver or other
action which the applicable Indenture expressly provides may be made, given or
taken by the Holders of a specified percentage in principal amount of all
Outstanding Debt Securities affected thereby, or of the Holders of such series
and one or more additional series: (i) there will be no minimum quorum
requirement for such meeting; and (ii) the principal amount of the Outstanding
Debt Securities of such series which vote in favor of such request, demand,
authorization, direction, notice, consent, waiver or other action will be
taken into account in determining whether such request, demand, authorization,
direction, notice, consent, waiver or other action has been made, given or
taken under the applicable Indenture (Section 1504).
 
  Any request, demand, authorization, direction, notice, consent, waiver or
other action provided by the applicable Indenture to be given or taken by a
specified percentage in principal amount of the Holders of any or all series
of Debt Securities may be embodied in and evidenced by one or more instruments
of substantially similar tenor signed by such specified percentage of Holders
in person or by agent duly appointed in writing; and, except as otherwise
expressly provided in the applicable Indenture, such action will become
effective when such instrument or instruments are delivered to the Trustee.
Proof of execution of any instrument or of a writing appointing any such agent
will be sufficient for any purpose of the applicable Indenture and (subject to
Article Six of the Indentures) conclusive in favor of the Trustee and Security
Capital, if made in the manner specified above (Section 1507).
 
                                      12
<PAGE>
 
DISCHARGE, DEFEASANCE AND COVENANT DEFEASANCE
 
  Security Capital may discharge certain obligations to Holders of any series
of Debt Securities which have not already been delivered to the Trustee for
cancellation by irrevocably depositing with the Trustee, in trust, funds in
such currency or currencies, currency unit or units or composite currency or
currencies in which such Debt Securities are payable in an amount sufficient
to pay the entire indebtedness on such Debt Securities in respect of principal
(and premium or Make-Whole Amount, if any) and interest and Additional
Amounts, if any, payable to the date of such deposit (if such Debt Securities
have become due and payable) or to the Stated Maturity or Redemption Date, as
the case may be (Sections 1401, 1402, 1403 and 1404).
 
  The Indentures provide that, if the provisions of Article Fourteen are made
applicable to the Debt Securities of or within any series pursuant to Section
301 of the Indentures, Security Capital may elect either (i) to defease and
discharge itself from any and all obligations with respect to such Debt
Securities (except for the obligation to pay Additional Amounts, if any, upon
the occurrence of certain events of tax, assessment or governmental charge
with respect to payments on such Debt Securities and the obligations to
register the transfer or exchange of such Debt Securities, to replace
temporary or mutilated, destroyed, lost or stolen Debt Securities, to maintain
an office or agency in respect of such Debt Securities and to hold moneys for
payment in trust) ("defeasance") (Section 1402) or (ii) to release itself from
its obligations with respect to such Debt Securities under Sections 1004 to
1009, inclusive, of the applicable Indenture (being the restrictions described
under "--Certain Covenants") and, if provided pursuant to Section 301 of the
applicable Indenture, their obligations with respect to any other covenant,
and any omission to comply with such obligations will not constitute a default
or an Event of Default with respect to such Debt Securities ("covenant
defeasance") (Section 1403), in either case upon the irrevocable deposit by
Security Capital with the Trustee, in trust, of an amount, in such currency or
currencies, currency unit or units or composite currency or currencies in
which such Debt Securities are payable at Stated Maturity, or Governmental
Obligations (as defined below), or both, applicable to such Debt Securities
which through the scheduled payment of principal and interest in accordance
with their terms will provide money in an amount sufficient to pay the
principal of (and premium or Make-Whole Amount, if any, on) and interest and
Additional Amounts, if any, on such Debt Securities, and any mandatory sinking
fund or analogous payments thereon, on the scheduled due dates therefor
(Section 1404).
 
  Such a trust may only be established if, among other things, Security
Capital has delivered to the Trustee an Opinion of Counsel (as specified in
the applicable Indenture) to the effect that the Holders of such Debt
Securities will not recognize income, gain or loss for U.S. Federal income tax
purposes as a result of such defeasance or covenant defeasance and will be
subject to U.S. Federal income tax on the same amounts, in the same manner and
at the same times as would have been the case if such defeasance or covenant
defeasance had not occurred, and such Opinion of Counsel, in the case of
defeasance, must refer to and be based on a ruling of the Internal Revenue
Service (the "IRS") or a change in applicable U.S. Federal income tax law
occurring after the date of the applicable Indenture (Section 1404).
 
  Unless otherwise provided in the applicable Prospectus Supplement, if after
Security Capital has deposited funds and/or Government Obligations to effect
defeasance or covenant defeasance with respect to Debt Securities of any
series, (i) the Holder of a Debt Security of such series is entitled to, and
does, elect pursuant to Section 301 of the applicable Indenture or the terms
of such Debt Security to receive payment in a currency, currency unit or
composite currency other than that in which such deposit has been made in
respect of such Debt Security or (ii) a Conversion Event (as defined below)
occurs in respect of the currency, currency unit or composite currency in
which such deposit has been made, the indebtedness represented by such Debt
Security will be deemed to have been, and will be, fully discharged and
satisfied through the payment of the principal of (and premium or Make-Whole
Amount, if any, on) and interest and Additional Amounts, if any, on such Debt
Security as they become due out of the proceeds yielded by converting the
amount so deposited in respect of such Debt Security into the currency,
currency unit or composite currency in which such Debt Security becomes
payable as a result of such election or Conversion Event based on the
applicable market exchange rate (Section 1405). "Conversion Event" means the
cessation of use of (i) a currency (other than the ECU or other currency unit)
both by the government of the country which issued such currency and for the
settlement of transactions by a
 
                                      13
<PAGE>
 
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 (Section 101).
 
  If Security Capital effects covenant defeasance with respect to any Debt
Securities and such Debt Securities are declared due and payable because of
the occurrence of any Event of Default other than the Event of Default
described in clause (iv) under "--Events of Default, Notice and Waiver" with
respect to Sections 1004 through 1009, inclusive, of the applicable Indenture
(which Sections would no longer be applicable to such Debt Securities) as to
which there has been covenant defeasance, the amount in such currency,
currency unit or composite currency in which such Debt Securities are payable,
plus Government Obligations on deposit with the Trustee, will be sufficient to
pay amounts due on such Debt Securities at the time of their Stated Maturity
but may not be sufficient to pay amounts due on such Debt Securities at the
time of the acceleration resulting from such Event of Default. However,
Security Capital would remain liable to make payment of such amounts due at
the time of acceleration.
 
  The applicable Prospectus Supplement may further describe the provisions, if
any, permitting such defeasance or covenant defeasance, including any
modifications to the provisions described above, with respect to the Debt
Securities of or within a particular series.
 
REGISTRATION AND TRANSFER
 
  Subject to certain limitations imposed on Debt Securities issued in book-
entry form, the Debt Securities of any series will be exchangeable for other
Debt Securities of the same series and of a like aggregate principal amount
and tenor of different authorized denominations upon surrender of such Debt
Securities at the corporate trust office of the Trustee. In addition, subject
to certain limitations imposed on Debt Securities issued in book-entry form,
the Debt Securities of any series may be surrendered for conversion or
registration of transfer thereof at the corporate trust office of the Trustee.
Every Debt Security surrendered for registration of transfer or exchange must
be duly endorsed or accompanied by a written instrument of transfer. No
service charge will be made for any registration of transfer or exchange of
any Debt Securities, but Security Capital may require payment of a sum
sufficient to cover any tax or other governmental charge payable in connection
therewith (Section 305). Security Capital may at any time designate one or
more offices or agencies where Debt Securities of any series may be presented
or surrendered for payment or surrendered for registration of transfer or
exchange. If Security Capital has designated such an office or agency,
Security Capital may at any time rescind the designation or approve a change
in the location of such office or agency, except that Security Capital will be
required to maintain such an office or agency in each Place of Payment for
such Debt Securities (Section 1002).
 
  Neither Security Capital nor the Trustee will be required to (i) issue,
register the transfer of or exchange Debt Securities of any series during a
period beginning at the opening of the business 15 days before any selection
of Debt Securities of such series to be redeemed and ending at the close of
business on the day of mailing of the relevant notice of redemption; (ii)
register the transfer of or exchange any Debt Security, or portion thereof,
called for redemption, except the unredeemed portion of any Debt Security
being redeemed in part; or (iii) issue, register the transfer of or exchange
any Debt Security which has been surrendered for repayment at the option of
the Holder, except the portion, if any, of such Debt Security not to be so
repaid (Section 305).
 
SUBORDINATION OF SUBORDINATED DEBT SECURITIES
 
  The Senior Debt Securities will constitute part of the Senior Indebtedness
(as defined below) of Security Capital and will rank pari passu with all
outstanding senior debt. Except as set forth in the Prospectus Supplement, the
Subordinated Debt Securities will be subordinated, in right of payment, to the
prior payment in full of the Senior Indebtedness (as defined below), including
the Senior Debt Securities, whether outstanding at the date of the
Subordinated Indenture or thereafter incurred, assumed or guaranteed. The term
"Senior Indebtedness" means (1) the principal of and premium, if any, and
unpaid interest on indebtedness for money
 
                                      14
<PAGE>
 
borrowed, (2) purchase money and similar obligations, (3) obligations under
capital leases, (4) guarantees, assumptions or purchase commitments relating
to, or other transactions as a result of which Security Capital is responsible
for the payment of, such indebtedness of others, (5) renewals, extensions and
refunding of any such indebtedness, (6) interest or obligations in respect of
any such indebtedness accruing after the commencement of any insolvency or
bankruptcy proceedings and (7) obligations associated with derivative products
such as interest rate and currency exchange contracts, foreign exchange
contracts, commodity contracts, and similar arrangements, unless, in each
case, the instrument by which Security Capital incurred, assumed or guaranteed
the indebtedness or obligations described in clauses (1) through (7) hereof
expressly provides that such indebtedness or obligation is not senior in right
of payment to the Subordinated Debt Securities.
 
  Under any distribution of assets of Security Capital in connection with any
dissolution, winding up, liquidation or reorganization of Security Capital,
whether in a bankruptcy, insolvency, reorganization or receivership proceeding
or upon an assignment for the benefit of creditors or any other marshalling of
the assets and liabilities of Security Capital or otherwise, except a
distribution in connection with a merger or consolidation or a conveyance or
transfer of all or substantially all of the properties of Security Capital in
accordance with the Subordinated Indenture, the holders of all Senior
Indebtedness shall first be entitled to receive payment of the full amount due
thereon, or provision shall be made for such payment in money or money's
worth, before the holders of any of the Subordinated Debt Securities are
entitled to receive any payment in respect of the Subordinated Debt
Securities. In the event that a payment default shall have occurred and be
continuing with respect to the Senior Indebtedness, the holders of all Senior
Indebtedness shall first be entitled to receive payment of the full amount due
thereon, or provision shall be made for such payment in money or money's
worth, before the holders of any of the Subordinated Debt Securities are
entitled to receive any payment in respect of the Subordinated Debt
Securities. In the event that the principal of the Subordinated Debt
Securities of any series shall have been declared due and payable pursuant to
the Subordinated Indenture and such declaration shall not have been rescinded
and annulled, the holders of all Senior Indebtedness outstanding at the time
of such declaration shall first be entitled to receive payment of the full
amount due thereon, or provision shall be made for such payment in money or
money's worth, before the holders of any of the Subordinated Debt Securities
are entitled to receive any payment in respect of the Subordinated Debt
Securities.
 
  This subordination will not prevent the occurrence of any event of default
with respect to the Subordinated Debt Securities. There is no limitation on
the issuance of additional Senior Indebtedness in the Subordinated Indenture.
 
PAYMENT
 
  Unless otherwise specified in the applicable Prospectus Supplement, the
principal of (and applicable premium or Make-Whole Amount, if any) and
interest on any series of Debt Securities will be payable at the corporate
trust office of the Trustee, the address of which will be stated in the
applicable Prospectus Supplement; provided that, at the option of the Company,
payment of interest may be made by check mailed to the address of the person
entitled thereto as it appears in the applicable register for such Debt
Securities or by wire transfer of funds to such person at an account
maintained within the United States.
 
  All moneys paid by the Company to a paying agent or a Trustee for the
payment of the principal of or any premium or interest on any Debt Security
which remain unclaimed at the end of two years after such principal, premium
or interest has become due and payable will be repaid to the Company, and the
Holder of such Debt Security thereafter may look only to the Company for
payment thereof.
 
BOOK-ENTRY SECURITIES
 
  Unless otherwise provided in the applicable Prospectus Supplement, the Debt
Securities of each series will be represented by one or more certificates (the
"Global Securities"). The Global Security representing Debt Securities will be
deposited with, or on behalf of, The Depository Trust Company ("DTC"), or
another successor depository appointed by Security Capital (DTC or such other
depository being the "Depository") and
 
                                      15
<PAGE>
 
registered in the name of the Depository or its nominee. Unless otherwise
provided in the applicable Prospectus Supplement, Debt Securities will not be
issued in definitive form. If the aggregate principal amount of any issue
exceeds $200 million, one certificate will be issued with respect to each $200
million of principal amount and an additional certificate will be issued with
respect to any remaining principal amount of such issue.
 
  DTC is a limited-purpose trust company organized under the New York Banking
Law, a "banking organization" within the meaning of the New York Banking Law,
a member of the Federal Reserve System, a "clearing corporation" within the
meaning of the New York Uniform Commercial Code, and a "clearing agency"
registered pursuant to the provisions of Section 17A of the Exchange Act. DTC
holds securities which its participants ("Participants") deposit with DTC. DTC
also facilitates the settlement among Participants of securities transactions,
such as transfers and pledges, in deposited securities through electronic
computerized book-entry changes in Participants' accounts, thereby eliminating
the need for physical movement of securities certificates. Direct Participants
include securities brokers and dealers, banks, trust companies, clearing
corporations and certain other organizations ("Direct Participants"). DTC is
owned by a number of its Direct Participants and by the New York Stock
Exchange, Inc. (the "NYSE"), the American Stock Exchange, Inc. and the
National Association of Securities Dealers, Inc. Access to the DTC system is
also available to others such as securities brokers and dealers, banks and
trust companies which clear through or maintain a custodial relationship with
a Direct Participant, either directly or indirectly ("Indirect Participants").
The rules applicable to DTC and its Participants are on file with the
Commission.
 
  Upon issuance by Security Capital of Debt Securities represented by a Global
Security, purchases of Debt Securities under the DTC system must be made by or
through Direct Participants, which will receive a credit for the Debt
Securities on DTC's records. The ownership interest of each actual purchaser
of each Debt Security ("Beneficial Owner") will in turn be recorded on the
Direct and Indirect Participants' records. Beneficial Owners will not receive
written confirmation from DTC of their purchase, but Beneficial Owners are
expected to receive written confirmations providing details of the
transaction, as well as periodic statements of their holdings, from the Direct
or Indirect Participant through which the Beneficial Owner entered into the
transaction. Transfers of ownership interests in the Debt Securities will be
accomplished by entries made on the books of Participants acting on behalf of
Beneficial Owners. Beneficial Owners will not receive certificates
representing their ownership interests in Debt Securities, except if use of
the book-entry system for the Debt Securities is discontinued. The laws of
some states require that certain purchasers of securities take physical
delivery of such securities in definitive form. Such limits and such laws may
impair the ability to own, pledge or transfer beneficial interests in a Global
Security.
 
  So long as the Depository for a Global Security, or its nominee, is the
registered owner of such Global Security, such Depository or such nominee, as
the case may be, will be considered the sole owner or holder of the Debt
Securities represented by such Global Security for all purposes under the
Indentures. Except as provided below, owners of beneficial interests in Debt
Securities represented by a Global Security will not be entitled to have Debt
Securities represented by such Global Security registered in their names, will
not receive or be entitled to receive physical delivery of Debt Securities in
definitive form and will not be considered the owners or holders thereof under
the Indentures.
 
  To facilitate subsequent transfers, all Debt Securities deposited by
Participants with DTC are registered in the name of DTC's partnership nominee,
Cede & Co. The deposit of Debt Securities with DTC and their registration in
the name of Cede & Co. effect no change in beneficial ownership. DTC has no
knowledge of the actual Beneficial Owners of the Debt Securities; DTC's
records reflect only the identity of the Direct Participants to whose accounts
such Debt Securities are credited, which may or may not be the Beneficial
Owners. The Participants will remain responsible for keeping account of their
holdings on behalf of their customers. Conveyance of notices and other
communications by DTC to Direct Participants, by Direct Participants to
Indirect Participants, and by Direct Participants and Indirect Participants to
Beneficial Owners will be governed by arrangements among them, subject to any
statutory or regulatory requirements as may be in effect from time to time.
 
 
                                      16
<PAGE>
 
  Neither DTC nor Cede & Co. will consent or vote with respect to Debt
Securities. Under its usual procedures, DTC will mail an omnibus proxy to
Security Capital as soon as possible after the record date. The omnibus proxy
will assign Cede & Co.'s consenting or voting rights to those Direct
Participants to whose accounts the Debt Securities are credited on the record
date (identified in a listing attached to the omnibus proxy).
 
  Payments of principal of (and premium and Make-Whole Amount, if any, on) and
interest and Additional Amounts, if any, on the Debt Securities represented by
a Global Security registered in the name of DTC or its nominee will be made by
Security Capital through the Trustee under the Indentures or a paying agent
(the "Paying Agent"), which may also be the Trustee under the Indentures, to
DTC or its nominee, as the case may be, as the registered owner of such Global
Security. None of Security Capital, the Trustee, the Paying Agent or the
Security Registrar for such Global Security will have any responsibility or
liability for any aspect of the records relating to or payments made on
account of beneficial ownership interests in such Global Security or for
maintaining, supervising or reviewing any records relating to such beneficial
ownership interests.
 
  Security Capital has been advised that DTC, upon receipt of any payment of
principal, premium, Make-Whole Amount or interest in respect of a Global
Security, will credit Direct Participants' accounts on the payable date in
accordance with their respective holdings shown on DTC's records unless DTC
has reason to believe that it will not receive payment on the payable date.
Payments by Participants to Beneficial Owners will be governed by standing
instructions and customary practices, as is the case with securities held for
the accounts of customers in bearer form or registered in "street name," and
will be the responsibility of such Participant and not of DTC, the Paying
Agent or Security Capital, subject to any statutory or regulatory requirements
as may be in effect from time to time. Payment of principal, premium and
interest to DTC is the responsibility of the Paying Agent or Security Capital,
as the case may be, disbursement of such payments to Direct Participants is
the responsibility of DTC, and disbursement of such payments to the Beneficial
Owners is the responsibility of Direct and Indirect Participants.
 
  If the Depository with respect to a Global Security is at any time unwilling
or unable to continue as Depository and a successor Depository is not
appointed by Security Capital within 90 days, Security Capital will issue
certificated notes in exchange for the Debt Securities represented by such
Global Security.
 
  The information in this section concerning the Depository and the
Depository's book-entry system has been obtained from sources which Security
Capital believes to be reliable, but Security Capital takes no responsibility
for the accuracy thereof.
 
NO PERSONAL LIABILITY OF SHAREHOLDERS, OFFICER OR DIRECTORS
 
  The Indentures provide that no recourse may be had against any past, present
or future stockholder, officer or director of Security Capital, or any
successor entity under or upon any obligation, covenant or agreement contained
in the Indentures or in any Offered Security, or because of any indebtedness
evidenced thereby (Section 111).
 
TRUSTEE
 
  The Indentures provide that there may be more than one Trustee thereunder,
each with respect to one or more series of Debt Securities. Any Trustee under
the Indentures may resign or be removed with respect to one or more series of
Debt Securities, and a successor Trustee may be appointed to act with respect
to such series (Section 608). If two or more Persons are acting as Trustee
with respect to different series of Debt Securities, each such Trustee will be
a Trustee of a trust under the applicable Indenture separate and apart from
the trust administered by any other Trustee, and, except as otherwise
indicated herein, any action described herein to be taken by the Trustee may
be taken by each such Trustee with respect to, and only with respect to, the
one or more series of Debt Securities for which it is Trustee under the
applicable Indenture (Sections 101 and 609).
 
                                      17
<PAGE>
 
CERTAIN DEFINITIONS
 
  "Capital Stock" means (i) in the case of a corporation, corporate stock;
(ii) in the case of an association or business entity, any and all shares,
interests, participations, rights or other equivalents (however designated) of
corporate stock; (iii) in the case of a partnership, partnership interests
(whether general or limited); and (iv) any other interest or participation
which confers on a Person the right to receive a share of the profits and
losses of, or distributions of assets of, the issuing Person.
 
  "Government Obligations" means securities which are (i) direct obligations
of the United States of America, 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,
the payment of which is unconditionally guaranteed as a full faith and credit
obligation by the United States of America which, in either case, are not
callable or redeemable at the option of the issuer thereof, and also includes
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 (Section 101).
 
  "Hedging Obligations" means, with respect to any Person, the greater of (a)
the net obligations of that Person under (i) interest rate swap agreements,
interest rate cap agreements and interest rate collar agreements, (ii) foreign
exchange contracts or currency swap agreements and (iii) other agreements or
arrangements designed to protect that Person against fluctuations in interest
rates or currency values or (b) zero.
 
  "Payment Default" means any failure to pay any scheduled installment of
principal of, premium, if any, or interest on any indebtedness within the
grace period provided for that payment in the documentation governing that
indebtedness.
 
  "Subsidiary" means, with respect to any Person, (i) any corporation,
association or other business entity of which more than 50% of the total
equity capital and more than 50% of the total voting power of shares of
Capital Stock entitled (without regard to the occurrence of any contingency)
to vote in the election of directors, managers or trustees thereof is at the
time owned or controlled, directly or indirectly, by that Person or one or
more of the other Subsidiaries of that Person (or a combination thereof) and
(ii) any partnership (a) the sole general partner or the managing general
partner of which is that Person or a Subsidiary of that Person or (b) the only
general partners of which are that Person or one or more Subsidiaries of that
Person (or any combination thereof).
 
                        DESCRIPTION OF PREFERRED SHARES
 
GENERAL
 
  The Board is authorized, without the approval of the holders of Common
Shares, to cause Preferred Shares to be issued in one or more series, to
determine the number of Preferred Shares of each series and to set the
preferences, conversion or other rights, voting powers, restrictions,
limitations as to dividends, qualifications and terms or conditions of
redemption of each series, which may be senior to the rights of Common Shares.
On May 15, 1998, Security Capital had 257,642 Series B Preferred Shares
outstanding, all of which were held of record by one shareholder.
 
 
                                      18
<PAGE>
 
  The following description sets forth certain general terms and provisions of
the Preferred Shares to which any Prospectus Supplement may relate. The
following description of the general terms of the Preferred Shares does not
purport to be complete and is subject to and qualified in its entirety by
reference to Security Capital's Charter and Bylaws. Reference is made to the
Prospectus Supplement relating to the Preferred Shares offered thereby for the
specific terms of such Preferred Shares, including:
 
  (1) The designation of such Preferred Shares;
 
  (2) The number of shares offered, the liquidation preference per share and
      the initial public offering price per share;
 
  (3) The dividend rate(s), period(s) and/or payment date(s) or method(s) of
      calculation thereof applicable to such Preferred Shares;
 
  (4) The date from which dividends on such Preferred Shares will cumulate,
      if applicable;
 
  (5) The procedures for the auction and remarketing, if any, for such
      Preferred Shares;
 
  (6) The provisions for a sinking fund, if any, for such Preferred Shares;
 
  (7) The terms and conditions of redemption, if applicable, of such
      Preferred Shares;
 
  (8) Any listing of such Preferred Shares on any securities exchange;
 
  (9) The terms and conditions on which such Preferred Shares will be
      convertible into Common Shares, if applicable, including the conversion
      price (or manner of calculation thereof);
 
  (10) Whether interests in such Preferred Shares will be represented by
       global securities;
 
  (11) A discussion of Federal income tax considerations applicable to such
       Preferred Shares;
 
  (12) The relative ranking and preferences of such Preferred Shares as to
       dividends and in the distribution of assets;
 
  (13) Any limitations on issuance of any series of Preferred Shares ranking
       senior to or on a parity with such Preferred Shares as to dividends
       and in the distribution of assets;
 
  (14) Any limitations on direct or beneficial ownership and restrictions on
       transfer of such Preferred Shares, in each case in accordance with the
       terms of the Charter; and
 
  (15) Any other specific preferences, rights, voting powers, restrictions,
       limitations as to dividends or qualifications of such Preferred
       Shares.
 
RANKING
 
  Unless otherwise specified in the applicable Prospectus Supplement, each
series of Preferred Shares will, as to dividends and in the distribution of
assets, rank (i) senior to all classes or series of Common Shares and to all
other equity securities ranking junior to such series of Preferred Shares;
(ii) on a parity with all equity securities issued by Security Capital the
terms of which specifically provide that such equity securities rank on a
parity with such series of Preferred Shares; and (iii) junior to all equity
securities issued by Security Capital the terms of which specifically provide
that such equity securities rank senior to such series of Preferred Shares.
The term "equity securities" does not include convertible debt securities. The
rights of the holders of each series of Preferred Shares will be subordinate
to those of Security Capital's general creditors.
 
DIVIDENDS
 
  The holders of each series of Preferred Shares will be entitled to receive,
when, as and if declared by the Board, out of funds legally available for that
purpose, cash dividends at such rates and on such dates as will be set forth
in the applicable Prospectus Supplement. Such rates may be fixed or variable
or both. Dividends will be payable to holders of record as they appear in the
stock records of Security Capital on such record dates as are fixed by the
Board.
 
                                      19
<PAGE>
 
  Dividends on any series of Preferred Shares may be cumulative or non-
cumulative, as provided in the applicable Prospectus Supplement. Dividends, if
cumulative, will begin to accrue and will be fully cumulative from the date
set forth in the applicable Prospectus Supplement. If the Board fails to
declare a dividend payable on a dividend payment date on any series of
Preferred Shares for which dividends are non-cumulative, then the holders of
such Preferred Shares will have no right to receive a dividend in respect of
the dividend period ending on such dividend payment date, and Security Capital
will have no obligation to pay the dividend accrued for such period, whether
or not dividends on such Preferred Shares are declared payable on any future
dividend payment date. No interest, or sum of money in lieu of interest, will
be payable in respect of any dividend payment or payments on any series of
Preferred Shares which may be in arrears.
 
  So long as any Preferred Shares of a series are outstanding, no full
dividends may be declared or paid or set apart for payment on any shares of
any other stock of Security Capital ranking on a parity with such series of
Preferred Shares as to dividends ("Dividend Parity Shares") for any period
unless (i) if such series of Preferred Shares has a cumulative dividend, full
cumulative dividends have been or contemporaneously are paid or declared and a
sum sufficient for the payment thereof set apart for such payments for all
past dividend periods and the then current dividend period with respect to
such series of Preferred Shares or (ii) if such series of Preferred Shares
does not have a cumulative dividend, full dividends have been or
contemporaneously are paid or declared and a sum sufficient for the payment
thereof set apart for such payments for the then current dividend period with
respect to such series of Preferred Shares. When dividends are not paid in
full, or a sum sufficient for the payment thereof is not set apart for
payment, on any series of Preferred Shares and any Dividend Parity Shares, all
dividends declared on such series of Preferred Shares and such Dividend Parity
Shares will be declared ratably in proportion to the amount of dividends
accrued and unpaid on such series of Preferred Shares (which will not include
any cumulation in respect of unpaid dividends for past dividend periods if
such series of Preferred Shares does not have a cumulative dividend) and on
such Dividend Parity Shares.
 
  So long as any Preferred Shares of a series are outstanding, except as
provided in the immediately preceding paragraph, no dividends (other than in
Common Shares or other shares of stock of Security Capital ranking junior to
such series of Preferred Shares as to dividends and in the distribution of
assets ("Fully Junior Shares")) may be declared or paid or set apart for
payment or other distribution may be declared or made on the Common Shares or
any other shares of stock of Security Capital ranking junior to such series of
Preferred Shares as to dividends or in the distribution of assets ("Junior
Shares"), nor may any Junior Shares be redeemed, purchased or otherwise
acquired for any consideration (or any moneys be paid to or made available for
a sinking fund for the redemption of any Junior Shares) by Security Capital
(except by conversion into or exchange for Fully Junior Shares) unless (i) if
such series of Preferred Shares has a cumulative dividend, full cumulative
dividends have been or contemporaneously are paid or declared and a sum
sufficient for the payment thereof set apart for such payments for all past
dividend periods and the then current dividend period with respect to such
series of Preferred Shares or (ii) if such series of Preferred Shares does not
have a cumulative dividend, full dividends have been or contemporaneously are
paid or declared and a sum sufficient for the payment thereof set apart for
such payments for the then current dividend period with respect to such series
of Preferred Shares.
 
  Any dividend payment made on a series of Preferred Shares will first be
credited against the earliest accrued but unpaid dividend due with respect to
such series of Preferred Shares which remains payable.
 
REDEMPTION
 
  If so provided in the applicable Prospectus Supplement, a series of
Preferred Shares will be subject to mandatory redemption or redemption at the
option of Security Capital, in whole or in part, in each case on the terms, at
the times and at the redemption prices set forth in such Prospectus
Supplement.
 
  The Prospectus Supplement relating to a series of Preferred Shares which is
subject to mandatory redemption will specify the number of Preferred Shares of
such series which will be redeemed by Security Capital in each year commencing
after a specified date, and the redemption price per share which will include
all dividends thereon accrued and unpaid, if any, to the date fixed for
redemption, without interest (which will
 
                                      20
<PAGE>
 
not include any cumulation in respect of unpaid dividends for past dividend
periods if such series of Preferred Shares does not have a cumulative
dividend). The redemption price may be payable in cash or other property, as
specified in the applicable Prospectus Supplement. If the redemption price for
any series of Preferred Shares is payable solely out of the sale proceeds of
stock of Security Capital, the terms of such series of Preferred Shares may
provide that, if no such stock has been issued or to the extent the sale
proceeds from such stock are insufficient to pay in full the aggregate
redemption price then due, Preferred Shares of such series will automatically
and mandatorily be converted into shares of the applicable stock of Security
Capital pursuant to conversion provisions specified in the applicable
Prospectus Supplement. If fewer than all the outstanding Preferred Shares of
any series are to be redeemed, the shares to be redeemed will be selected by
Security Capital by lot or pro rata or by any other method determined by
Security Capital.
 
  Notwithstanding the foregoing, unless (i) if such series of Preferred Shares
has a cumulative dividend, full cumulative dividends have been or
contemporaneously are paid or declared and a sum sufficient for the payment
thereof set apart for such payments for all past dividend periods and the then
current dividend period with respect to such series of Preferred Shares and
any shares of any other stock of Security Capital ranking on a parity with
such series of Preferred Shares as to distributions and in the distribution of
assets ("Parity Shares") or (ii) if such series of Preferred Shares does not
have a cumulative dividend, full dividends have been or contemporaneously are
paid or declared and a sum sufficient for the payment thereof set apart for
such payments for the then current dividend period with respect to such series
of Preferred Shares and any Parity Shares, the Preferred Shares of such series
may not be redeemed and Security Capital may not purchase or otherwise acquire
any Preferred Shares of such series, except pursuant to a purchase or exchange
offer made on the same terms to all holders of outstanding Preferred Shares of
such series or by conversion into or exchange for Fully Junior Shares.
 
  Notice of the redemption of any Preferred Shares of any series will be
mailed not less than 30 days nor more than 90 days prior to the redemption
date to each holder of record of such series of Preferred Shares at the
address of such holder as shown on Security Capital's stock records. Each
notice will state: (i) the redemption date; (ii) the number of Preferred
Shares of such series to be redeemed; (iii) the redemption price; (iv) the
place or places at which certificates representing such Preferred Shares are
to be surrendered; (v) that dividends on such Preferred Shares will cease to
accrue on such redemption date; and (vi) the date on which the holder's
conversion rights, if any, as to such Preferred Shares will terminate. If
fewer than all the Preferred Shares of any series are to be redeemed, the
notice mailed to each such holder will also specify the number of Preferred
Shares of such series to be redeemed from such holder. If notice of redemption
of any Preferred Shares has been mailed and if Security Capital has deposited
the funds necessary for such redemption in trust, for the benefit of the
holders of the Preferred Shares so called for redemption, then from and after
the redemption date, dividends will cease to accrue on such Preferred Shares,
such Preferred Shares will no longer be deemed outstanding and all rights of
the holders of such Preferred Shares will terminate, except the right to
receive the redemption price.
 
LIQUIDATION PREFERENCE
 
  Upon any liquidation, dissolution or winding up of Security Capital, whether
voluntary or involuntary, before any payment or distribution is made to or set
apart for the holders of any Common Shares or any shares of any other stock of
Security Capital ranking junior to such series of Preferred Shares in the
distribution of assets ("Liquidation Junior Shares"), the holders of each
series of Preferred Shares will be entitled to receive out of assets of
Security Capital legally available for that purpose, liquidating distributions
in the amount of the liquidation preference per share (as specified in the
applicable Prospectus Supplement), plus an amount equal to all dividends
(whether or not earned or declared) thereon accrued and unpaid, if any (which
will not include any cumulation in respect of unpaid dividends for past
dividend periods if such series of Preferred Shares does not have a cumulative
dividend); but the holders of such series of Preferred Shares will not be
entitled to any further payment. If, upon any liquidation, dissolution or
winding up of Security Capital, the assets of Security Capital are
insufficient to pay in full such preferential amount with respect to such
series of Preferred Shares and the corresponding amounts with respect to all
other stock of Security Capital ranking on a parity with such series of
 
                                      21
<PAGE>
 
Preferred Shares in the distribution of assets ("Liquidation Parity Shares"),
then such assets will be distributed among the holders of such series of
Preferred Shares and such Liquidation Parity Shares in proportion to the full
liquidating distributions to which they would otherwise be respectively
entitled.
 
  Subject to the rights of the holders of any class or series of stock of
Security Capital ranking on a parity with or senior to such series of
Preferred Shares in the distribution of assets, upon any liquidation,
dissolution or winding up of Security Capital, whether voluntary or
involuntary, after payment has been made in full to all holders of a series of
Preferred Shares, the remaining assets of Security Capital will be distributed
among the holders of any Liquidation Junior Shares, according to their
respective rights and preferences and in each case according to their
respective number of shares.
 
  For the above purposes, a consolidation or merger of Security Capital with
or into any other entity, a sale, transfer, lease or conveyance of all or
substantially all of Security Capital's assets, property or business or a
statutory share exchange will not be deemed to be a liquidation, dissolution
or winding up of Security Capital.
 
VOTING RIGHTS
 
  Holders of each series of Preferred Shares will not have any voting rights,
except as set forth below or in the applicable Prospectus Supplement or as
otherwise required by applicable law. The following is a summary of the voting
rights that, unless provided otherwise in the applicable Prospectus
Supplement, will apply to each series of Preferred Shares.
 
  If and whenever six quarterly dividends (whether or not consecutive) payable
on any series of Preferred Shares or any Parity Shares are in arrears, whether
or not earned or declared, the number of directors then constituting the Board
will be increased by two, and the holders of such series of Preferred Shares,
together with the holders of any such Parity Shares, voting as a single class,
will have the right to elect two additional directors to serve on the Board at
the next annual meeting of shareholders or a special meeting of the holders of
such series of Preferred Shares and such Parity Shares and at each subsequent
annual meeting of shareholders until all such dividends in arrears have been
paid and a sum sufficient for the payment thereof has been set apart for
payment of the distribution for the current distribution period with respect
to such series of Preferred Shares and such Parity Shares. The term of office
of all directors so elected will terminate with the termination of such voting
rights. For so long as Security Capital and certain of its affiliates
beneficially own in excess of 10% of the outstanding Common Shares, in any
such vote by holders of such series of Preferred Shares and such Parity
Shares, any Preferred Shares of such series and Parity Shares beneficially
owned by Security Capital and such affiliates will be voted in the same
percentages as Preferred Shares of such series and Parity Shares which are not
beneficially owned by Security Capital and such affiliates.
 
  The approval of two-thirds of the outstanding Preferred Shares of any series
and all series of Parity Shares similarly affected, voting as a single class,
will be necessary in order to (i) amend Security Capital's Charter to
materially and adversely affect the voting powers, rights or preferences of
the holders of such series of Preferred Shares, (ii) enter into a share
exchange which affects such series of Preferred Shares, consolidate with or
merge into another entity, or permit another entity to consolidate with or
merge into Security Capital, unless in each such case, each Preferred Share of
such series remains outstanding without a material and adverse change to its
terms and rights or is converted into or exchanged for preferred stock of the
surviving entity having preferences, conversion or other rights, voting
powers, restrictions, limitations as to dividends, qualifications and terms or
conditions of redemption identical to those of a Preferred Share of such
series (except for changes which do not materially and adversely affect the
holders of such series of Preferred Shares) or (iii) authorize, reclassify,
create or increase the authorized amount of any class of stock ranking senior
to such series of Preferred Shares in the payment of dividends or in the
distribution of assets. However, Security Capital may create additional
classes and series of Parity Shares, Junior Shares and Fully Junior Shares,
increase the authorized number of shares of such stock and issue additional
series of such stock without the consent of any holder of such series of
Preferred Shares.
 
 
                                      22
<PAGE>
 
  Except as provided above and as required by law, the holders of each series
of Preferred Shares will not be entitled to vote on any merger or
consolidation involving Security Capital or a sale of all or substantially all
of the assets of Security Capital.
 
CONVERSION RIGHTS
 
  The terms and conditions, if any, on which any series of Preferred Shares is
convertible into Common Shares will be set forth in the applicable Prospectus
Supplement. Such terms will include the number of shares of Common Shares into
which each share of such series of Preferred Shares is convertible, the
conversion price (or manner of calculation thereof), the conversion period,
provisions as to whether conversion will be at the option of the holders of
such series of Preferred Shares or Security Capital, the events requiring an
adjustment of the conversion price and provisions affecting conversion upon
the redemption of such series of Preferred Shares.
 
                         DESCRIPTION OF COMMON SHARES
 
  The following description sets forth certain general terms and provisions of
the Common Shares to which any Prospects Supplement may relate, including a
Prospectus Supplement which provides for Common Shares issuable pursuant to
subscription offerings or rights offerings, upon conversion or exchange of
Preferred Shares or Debt Securities or upon the exercise of Common Shares
Warrants. The following description of the terms of the Common Shares does not
purport to be complete and is subject to and qualified in its entirety by
reference to Maryland law and to Security Capital's Charter and Bylaws.
 
  The authorized stock of Security Capital consists of 250,000,000 shares,
consisting of 20,000,000 Class A Shares, 229,742,358 Class B Shares and
257,642 shares of Series B Preferred Stock. The Board may, by articles
supplementary, classify or reclassify any unissued shares of stock from time
to time by setting or changing the preferences, conversion or other rights,
voting powers, restrictions, limitations as to dividends and other
distributions, qualifications or terms or conditions of redemption of such
stock. No holder of any class of stock of Security Capital will have any
preemptive right to subscribe for any securities of Security Capital except as
may be granted by the Board pursuant to an agreement between Security Capital
and a shareholder. Under Maryland law, shareholders are generally not liable
for Security Capital's debts or obligations. For a description of certain
provisions that could have the effect of delaying, deferring or preventing a
change in control, see "Certain Provisions of Maryland Law and of Security
Capital's Charter and Bylaws."
 
  The holders of outstanding Class A Shares are entitled to one vote, and the
holders of outstanding Class B Shares are entitled to one two-hundredth (
1/200th) of a vote, for each share held of record on all matters submitted to
a vote of shareholders. Unless otherwise required by Maryland law, the Class A
Shares and the Class B Shares will vote as a single class with respect to all
matters submitted to a vote of shareholders of Security Capital, including the
election of directors. Shareholders do not have the right to cumulate their
votes in the election of directors, which means that the holders of a majority
of the outstanding Class A Shares can elect all of the directors then standing
for election.
 
  Each Class A Share may be converted into 50 Class B Shares at the holder's
option at any time. Class B Shares are not convertible into Class A Shares or
any other security.
 
  Holders of Class A Shares are entitled to receive ratably such dividends as
may be authorized by the Board out of funds legally available therefor.
Holders of Class B Shares are entitled to dividends equal to one-fiftieth (
1/50th) of the amount per share declared by the Board for each Class A Share.
Dividends with respect to the Class B Shares will be paid in the same form and
at the same time as dividends with respect to the Class A Shares, except that,
in the event of a stock split or stock dividend, holders of Class A Shares
will receive Class A Shares and holders of Class B Shares will receive Class B
Shares, unless otherwise specifically designated by resolution of the Board.
Security Capital has no present intention to pay a dividend on Class B Shares
or Class A Shares (which would necessitate a one-fiftieth ( 1/50th) equivalent
dividend on Class B Shares) in the future.
 
 
                                      23
<PAGE>
 
  In the event of the liquidation, dissolution or winding-up of Security
Capital, holders of Class A Shares and Class B Shares are entitled to share
ratably in all assets remaining after the payment of liabilities, with holders
of Class B Shares entitled to receive per share one-fiftieth ( 1/50th) of any
amount per share received by holders of Class A Shares. Neither holders of
Class A Shares or Class B Shares shall have preemptive rights to subscribe for
additional shares of either class. All outstanding Class A Shares are, and all
Class B Shares to be outstanding upon completion of the Offering will be,
fully paid and non-assessable.
 
  The transfer agent and registrar for the Class A Shares and Class B Shares
is BankBoston, N.A., 150 Royall Street, Canton, Massachusetts 02021.
 
PURCHASE RIGHTS
 
  On April 21, 1997, the Board declared a dividend of one Purchase Right for
each Share outstanding at the close of business on April 21, 1997 (the "Rights
Record Date") to the holders of Class A Shares and Class B Shares of record as
of the Rights Record Date. The dividend was paid on the Rights Record Date.
The holders of any additional Class A Shares or Class B Shares issued after
the Rights Record Date and before the redemption or expiration of the Purchase
Rights will also be entitled to one Purchase Right for each such additional
Share. Each Purchase Right entitles the registered holder, under certain
circumstances, to purchase from Security Capital, in the event the underlying
share is a Class A Share, one one-hundredth of a Participating Preferred Share
of Security Capital at a price of $6,000 per one one-hundredth of a
Participating Preferred Share (the "Purchase Price"), subject to adjustment.
In the event the underlying share is a Class B Share, the Purchase Right
entitles the registered holder under certain circumstances to purchase from
Security Capital one five-thousandth of a Participating Preferred Share of
Security Capital at a price of $120 per one five-thousandth of a Participating
Preferred Share. The description and terms of the Purchase Rights are set
forth in the Rights Agreement dated as of April 21, 1997 between Security
Capital and The First National Bank of Boston, as rights agent (the "Rights
Agreement").
 
  The Purchase Rights will be exercisable and will be evidenced by separate
certificates only after the earlier to occur of: (1) 10 days following a
public announcement that a person or group of affiliated or associated
persons, other than Security Capital U. S. Realty ("SC-USREALTY") and certain
affiliates of Security Capital, has acquired beneficial ownership of 20% or
more of the voting power of the voting equity securities of Security Capital
(thereby becoming an "Acquiring Person") or (2) 15 business days (or such
later date as may be determined by action of the Board prior to such time as
any person or group of affiliated persons becomes an Acquiring Person)
following the commencement of, or announcement of an intention to make, a
tender offer or exchange offer the consummation of which would result in the
beneficial ownership by a person or group of persons of 25% or more of the
voting power of the voting equity securities of Security Capital (the first to
occur of such dates being called the "Rights Distribution Date"). With respect
to any of the Class A Share or Class B Share certificates outstanding as of
the Rights Record Date, until the Rights Distribution Date the Purchase Rights
will be evidenced by such certificate. Until the Rights Distribution Date (or
earlier redemption or expiration of the Purchase Rights), new certificates
issued after the Rights Record Date upon transfer or new issuance of Class A
Shares or Class B Shares will contain a notation incorporating the Rights
Agreement by reference. Notwithstanding the foregoing, if the Board in good
faith determines that a person who would otherwise be an Acquiring Person
under the Rights Agreement has become such inadvertently, and such person
divests as promptly as practicable a sufficient number of Class A Shares or
Class B Shares so that such person would no longer be an Acquiring Person,
then such person shall not be deemed to be an Acquiring Person for purposes of
the Rights Agreement.
 
  The Purchase Rights will expire on April 21, 2007 (the "Final Expiration
Date"), unless the Final Expiration Date is extended or unless the Rights are
earlier redeemed or exchanged by Security Capital, in each case as described
below.
 
  The Purchase Price payable, and the number of Participating Preferred Shares
or other securities or property issuable, upon exercise of the Purchase Rights
are subject to adjustment under certain circumstances from time to time to
prevent dilution. With certain exceptions, no adjustment in the Purchase Price
will be required until cumulative adjustments require an adjustment of at
least 1% in such Purchase Price.
 
                                      24
<PAGE>
 
  Participating Preferred Shares purchasable upon exercise of the Purchase
Rights will not be redeemable. Each Participating Preferred Share will be
entitled to a minimum preferential quarterly distribution payment of $1 per
share but will be entitled to an aggregate distribution of 100 times the
distribution declared per Class A Share, or if no Class A Shares are
outstanding, 2 times the distribution declared per Class B Share. Each
Participating Preferred Share will have 100 votes, voting together with the
Class A Shares and Class B Shares. In the event of liquidation, the holders of
the Participating Preferred Shares will be entitled to a minimum preferential
liquidation payment of $1 per share but will be entitled to an aggregate
payment of 100 times the payment made per Class A Share, or if no Class A
Shares are outstanding, 2 times the payment made per Class B Share. In the
event of any merger, consolidation or other transaction in which Class A
Shares or Class B Shares are exchanged, each Participating Preferred Share
will be entitled to receive 100 times the amount received per Class A Share or
Class B Share, as the case may be. In the event of issuance of Participating
Preferred Shares upon exercise of the Purchase Rights, in order to facilitate
trading, a depositary receipt may be issued for each one one-hundredth or one
five-thousandth of a Participating Preferred Share. The Purchase Rights will
be protected by customary antidilution provisions.
 
  In the event that any person or group of affiliated or associated persons
becomes an Acquiring Person, proper provision will be made so that each holder
of a Purchase Right, other than Purchase Rights beneficially owned by the
Acquiring Person (which will thereafter be void), will thereafter have the
right to receive upon exercise a number of Class A Shares or Class B Shares,
as the case may be, having a market value (determined in accordance with the
Rights Agreement) of twice the Purchase Price. In lieu of the issuance of
Class A Shares or Class B Shares, as the case may be, upon exercise of
Purchase Rights, the Board may under certain circumstances, and if there is an
insufficient number of Class A Shares or Class B Shares, as the case may be,
authorized but unissued or held as treasury Class A Shares or Class B Shares
to permit the exercise in full of the Purchase Rights, the Board is required
to, take such action as may be necessary to cause Security Capital to issue or
pay upon the exercise of Purchase Rights, cash (including by way of a
reduction of purchase price), property, other securities or any combination of
the foregoing having an aggregate value equal to that of the Class A Shares or
Class B Shares, as the case may be, which otherwise would have been issuable
upon the exercise of Purchase Rights.
 
  In the event that, after any person or group becomes an Acquiring Person,
Security Capital is acquired in a merger or other business combination
transaction of 50% or more of its consolidated assets or earning power are
sold, proper provision will be made so that each holder of a Purchase Right
will thereafter have the right to receive, upon the exercise thereof at the
then current Purchase Price, a number of shares of common stock of the
acquiring company having a market value (determined in accordance with the
Rights Agreement) of twice the Purchase Price.
 
  At any time after any person or group becomes an Acquiring Person and prior
to the acquisition by that person or group of 50% or more of the outstanding
Class A Shares or Class B Shares, the Board may exchange the Purchase Rights
(other than Purchase Rights owned by that person or group which will have
become void), in whole or in part, at an exchange ratio of one Class A Share
or Class B Share, as the case may be (or one one-hundredth or one five-
thousandth of a Participating Preferred Share as the case may be), per
Purchase Right (subject to adjustment).
 
  As soon as practicable after a Rights Distribution Date, Security Capital is
obligated to use its best efforts to file a registration statement under the
Securities Act relating to the securities issuable upon exercise of Purchase
Rights and to cause such registration statement to become effective as soon as
practicable.
 
  At any time prior to the time a person or group of persons becomes an
Acquiring Person, the Board may redeem the Purchase Rights in whole, but not
in part, at a price of $.01 per Purchase Right (the "Redemption Price")
payable in cash, Class A Shares or Class B Shares or any other form of
consideration deemed appropriate by the Board. The redemption of the Purchase
Rights may be made effective at such time, on such basis and with such
conditions as the Board in its sole discretion may establish. Immediately upon
the effectiveness of any redemption of the Purchase Rights, the right to
exercise the Purchase Rights will terminate and the only right of the holders
of Purchase Rights will be to receive the Redemption Price.
 
                                      25
<PAGE>
 
  The terms of the Purchase Rights may be amended by the Board without the
consent of the holders of the Purchase Rights, except that from and after the
time any person or group of affiliated or associated persons becomes an
Acquiring Person no such amendment may adversely affect the interests of the
holders of the Purchase Rights and in no event shall any such amendment change
the 20% threshold at which a person acquiring beneficial ownership of Class A
Shares or Class B Shares becomes an Acquiring Person.
 
  The Purchase Rights have certain anti-takeover effects. The Purchase Rights
will cause substantial dilution to a person or group that attempts to acquire
Security Capital on terms not approved by its Board, except pursuant to an
offer conditioned on a substantial number of Purchase Rights being acquired.
The Purchase Rights should not interfere with any merger or other business
combination approved by the Board since the Purchase Rights may be redeemed by
Security Capital at the Redemption Price prior to the time that a person or
group has acquired beneficial ownership of 20% or more of the voting power of
the voting equity securities of Security Capital. The form of Rights Agreement
specifying the terms of the Purchase Rights has been incorporated by reference
into the registration statement of which this Prospectus forms a part and is
incorporated herein by reference. The foregoing description of the Purchase
Rights does not purport to be complete and is subject to, and is qualified in
its entirety by reference to, the Rights Agreement, including the definitions
therein of certain terms.
 
RESTRICTION ON SIZE OF HOLDINGS OF CLASS A SHARES AND CLASS B SHARES
 
  The Charter contains certain restrictions on the number of Class A Shares
and Class B Shares that individual shareholders may own. For the operating
companies to qualify as REITs under the Code, no more than 50% of the value of
their shares (after taking into account options to acquire shares) may be
owned, directly or indirectly, by five or fewer individuals (as defined in the
Code to include certain entities and constructive ownership among specified
family members) during the last half of a taxable year (other than the first
taxable year), or by 100 or more persons during at least 335 days of a taxable
year or during a proportionate part of a shorter taxable year. Because certain
of the operating companies are REITs, their respective charters and Security
Capital's Charter contain restrictions on the acquisition of shares intended
to ensure compliance with these requirements.
 
  Subject to certain exceptions specified in the Charter, no holder may own,
or be deemed to own by virtue of the attribution provisions of the Code, more
than 9.8% (the "Ownership Limit") of the number or value of the issued and
outstanding shares of Security Capital's stock. The Board, upon receipt of a
ruling from the IRS or an opinion of counsel or other evidence satisfactory to
the Board and upon such other conditions as the Board may direct, may also
exempt a proposed transferee from the Ownership Limit. As a condition of such
exemption, the proposed transferee must give written notice to Security
Capital of the proposed transfer no later than the fifteenth day prior to any
transfer which, if consummated, would result in the intended transferee owning
shares of Security Capital's stock in excess of the Ownership Limit. The Board
may require such opinions of counsel, affidavits, undertakings or agreements
as it may deem necessary or advisable in order to determine or ensure the
operating companies' status as REITs. Any transfer of Class A Shares or Class
B Shares that would (i) create a direct or indirect ownership of shares of
Security Capital's stock in excess of the Ownership Limit or (ii) result in a
Security Capital investee being "closely held" within the meaning of Section
856(h) of the Code, shall be null and void ab initio, and the intended
transferee will acquire no rights to the shares of Security Capital's stock.
The foregoing restrictions on transferability and ownership will not apply if
the Board determines, which determination must be approved by the
shareholders, that it is no longer in the best interests of Security Capital
to attempt to, or to continue to, assist Security Capital's operating
companies in qualifying as REITs. The Charter excludes SC-USREALTY (and its
transferees) from the Ownership Limit.
 
  Any shares of Security Capital's stock, the purported transfer of which
would result in a person owning Class A Shares or Class B Shares in excess of
the Ownership Limit or cause any or all of the operating companies to become
"closely held" under Section 856(h) of the Code, that is not otherwise
permitted as provided above will constitute excess shares ("Excess Shares"),
which will be transferred pursuant to the Charter to a party not affiliated
with Security Capital designated by Security Capital as the trustee of a trust
for the exclusive benefit of an organization or organizations described in
Sections 170(b)(1)(A) and 170(c) of the
 
                                      26
<PAGE>
 
Code and identified by the Board as the beneficiary or beneficiaries of the
trust (the "Charitable Beneficiary"), until such time as the Excess Shares are
transferred to a person whose ownership will not violate the restrictions on
ownership. While these Excess Shares are held in trust, they will be entitled
to share in any distributions which will be paid to the trust for the benefit
of the Charitable Beneficiary and may only be voted by the trustee for the
benefit of the Charitable Beneficiary. Subject to the Ownership Limit, the
Excess Shares shall be transferred by the trustee at the direction of Security
Capital to any person (if the Excess Shares would not be Excess Shares in the
hands of such person). The purported transferee will receive the lesser of (i)
the price paid by the purported transferee for the Excess Shares (or, if no
consideration was paid, fair market value on the day of the event causing the
Excess Shares to be held in trust) and (ii) the price received from the sale
or other disposition of the Excess Shares held in trust. Any proceeds in
excess of the amount payable to the purported transferee will be paid to the
Charitable Beneficiary. In addition, such Excess Shares held in trust are
subject to purchase by Security Capital for a 90-day period at a purchase
price equal to the lesser of (i) the price paid for the Excess Shares by the
purported transferee (or, if no consideration was paid, fair market value at
the time of the event causing the Class A Shares or Class B Shares to be held
in trust) and (ii) the fair market value of the Excess Shares on the date
Security Capital elects to purchase. Fair market value, for these purposes,
means the last reported sales price reported on the NYSE on the trading day
immediately preceding the relevant date, or if not then traded on the NYSE,
the last reported sales price on the trading day immediately preceding the
relevant date as reported on any exchange or quotation system over or through
which the relevant class of shares of stock may be traded, or if not then
traded over or through any exchange or quotation system, then the market price
on the relevant date as determined in good faith by the Board.
 
  From and after the purported transfer to the purported transferee of the
Excess Shares, the purported transferee shall cease to be entitled to
distributions, voting rights and other benefits with respect to the Excess
Shares except the right to payment on the transfer of the Excess Shares as
described above. Any distribution paid to a purported transferee on Excess
Shares prior to the discovery by Security Capital that such Excess Shares have
been transferred in violation of the provisions of the Charter shall be
repaid, upon demand, to Security Capital, which shall pay any such amounts to
the trust for the benefit of the Charitable Beneficiary. If the foregoing
transfer restrictions are determined to be void, invalid or unenforceable by
any court of competent jurisdiction, then the purported transferee of any
Excess Shares may be deemed, at the option of Security Capital, to have acted
as an agent on behalf of Security Capital in acquiring such Excess Shares and
to hold such Excess Shares on behalf of Security Capital.
 
  All certificates representing Class A Shares and Class B Shares will bear a
legend referring to the restrictions described above.
 
  Each shareholder shall upon demand be required to disclose to Security
Capital in writing such information with respect to the direct, indirect and
constructive ownership of Class A Shares and Class B Shares as the Board deems
reasonably necessary to assist its operating companies in complying with the
provisions of the Code applicable to REITs, to determine Security Capital's
operating companies status as REITs, to comply with the requirements of any
taxing authority or governmental agency or to determine any such compliance.
 
  These ownership limitations could have the effect of discouraging a takeover
or other transaction in which holders of some, or a majority, of the Class A
Shares or Class B Shares might receive a premium for their Class A Shares or
Class B Shares over the then prevailing market price or which such holders
might believe to be otherwise in their best interest.
 
                      DESCRIPTION OF SECURITIES WARRANTS
 
  Security Capital may issue Securities Warrants for the purchase of Debt
Securities, Preferred Shares or Common Shares. Securities Warrants may be
issued independently or together with any other Offered Securities offered by
any Prospectus Supplement and may be attached to or separate from such Offered
Securities. Each series of Securities Warrants will be issued under a separate
warrant agreement (each, a "Warrant Agreement") to be entered into between
Security Capital and a warrant agent specified in the applicable Prospectus
Supplement (the "Warrant Agent"). The Warrant Agent will act solely as an
agent of Security Capital in
 
                                      27
<PAGE>
 
connection with the Securities Warrants of such series and will not assume any
obligation or relationship of agency or trust for or with any holders or
beneficial owners of Securities Warrants. The following summaries of certain
provisions of the Securities Warrant Agreement and the Securities Warrants do
not purport to be complete and are subject to, and are qualified in their
entirety by reference to, all the provisions of the Securities Warrant
Agreement and the Securities Warrant certificates relating to each series of
Securities Warrants which will be filed with the Commission at or prior to the
time of the issuance of such series of Securities Warrants.
 
  If Securities Warrants are offered, the applicable Prospectus Supplement
will describe the terms of such Securities Warrants, including, in the case of
Securities Warrants for the purchase of Debt Securities, the following where
applicable: (i) the offering price; (ii) the denominations and terms of the
series of Debt Securities purchasable upon exercise of such Securities
Warrants; (iii) the designation and terms of any series of Debt Securities
with which such Securities Warrants are being offered and the number of such
Securities Warrants being offered with such Debt Securities; (iv) the date, if
any, on and after which such Securities Warrants and the related series of
Debt Securities will be transferable separately; (v) the principal amount of
the series of Debt Securities purchasable upon exercise of each such
Securities Warrant and the price at which such principal amount of Debt
Securities of such series may be purchased upon such exercise; (vi) the date
on which the right to exercise such Securities Warrants shall commence and the
date on which such right shall expire (the "Expiration Date"); (vii) the
terms, if any, on which Security Capital may accelerate the date by which the
Securities Warrants must be exercised; and (viii) any other material terms of
such Securities Warrants.
 
  In the case of Securities Warrants for the purchase of Preferred Shares or
Common Shares, the applicable Prospectus Supplement will describe the terms of
such Securities Warrants, including the following where applicable: (i) the
offering price; (ii) the aggregate number of shares purchasable upon exercise
of such Securities Warrants, the exercise price, and in the case of Securities
Warrants for Preferred Shares, the designation, aggregate number and terms of
the series of Preferred Shares purchasable upon exercise of such Securities
Warrants; (iii) the designation and terms of any series of Preferred Shares
with which such Securities Warrants are being offered and the number of such
Securities Warrants being offered with such Preferred Shares; (iv) the date,
if any, on and after which such Securities Warrants and the related series of
Preferred Shares or Common Shares will be transferable separately; (v) the
date on which the right to exercise such Securities Warrants shall commence
and the Expiration Date; and (vi) any other material terms of such Securities
Warrants.
 
  Securities Warrant certificates may be exchanged for new Securities Warrant
certificates of different denominations, may (if in registered form) be
presented for registration of transfer, and may be exercised at the corporate
trust office of the Securities Warrant Agent or any other office indicated in
the applicable Prospectus Supplement. Prior to the exercise of any Securities
Warrant to purchase Debt Securities, holders of such Securities Warrants will
not have any of the rights of holders of the Debt Securities purchasable upon
such exercise, including the right to receive payments of principal, premium,
if any, or interest, if any, on such Debt Securities or to enforce covenants
in the applicable indenture. Prior to the exercise of any Securities Warrants
to purchase Preferred Shares or Common Shares, holders of such Securities
Warrants will not have any rights of holders of such Preferred Shares or
Common Shares, including the right to receive payments of dividends, if any,
on such Preferred Shares or Common Shares, or to exercise any applicable right
to vote.
 
EXERCISE OF SECURITIES WARRANTS
 
  Each Securities Warrant will entitle the holder thereof to purchase such
principal amount of Debt Securities or number of Preferred Shares or Common
Shares, as the case may be, at such exercise price as shall in each case be
set forth in, or calculable from, the Prospectus Supplement relating to the
offered Securities Warrants. After the close of business on the Expiration
Date (or such later date to which such Expiration Date may be extended by
Security Capital), unexercised Securities Warrants will become void.
 
  Securities Warrants may be exercised by delivering to the Securities Warrant
Agent payment as provided in the applicable Prospectus Supplement of the
amount required to purchase the Debt Securities, Preferred Shares or Common
Shares, as the case may be, purchasable upon such exercise together with
certain information set
 
                                      28
<PAGE>
 
forth on the reverse side of the Securities Warrant certificate. Securities
Warrants will be deemed to have been exercised upon receipt of payment of the
exercise price, subject to the receipt within five (5) business days, of the
Securities Warrant certificate evidencing such Securities Warrants. Upon
receipt of such payment and the Securities Warrant certificate properly
completed and duly executed at the corporate trust office of the Securities
Warrant Agent or any other office indicated in the applicable Prospectus
Supplement, Security Capital will, as soon as practicable, issue and deliver
the Debt Securities, Preferred Shares or Common Shares, as the case may be,
purchasable upon such exercise. If fewer than all of the Securities Warrants
represented by such Securities Warrant certificate are exercised, a new
Securities Warrant certificate will be issued for the remaining amount of
Securities Warrants.
 
AMENDMENTS AND SUPPLEMENTS TO WARRANT AGREEMENT
 
  The Warrant Agreements may be amended or supplemented without the consent of
the holders of the Securities Warrants issued thereunder to effect changes
that are not inconsistent with the provisions of the Securities Warrants and
that do not adversely affect the interests of the holders of the Securities
Warrants.
 
ADJUSTMENTS
 
  Unless otherwise indicated in the applicable Prospectus Supplement, the
exercise price of, and the number of Common Shares covered by, a Common Shares
Warrant is subject to adjustment in certain events, including (i) payment of a
dividend on the Common Shares payable in Common Shares and share splits,
combinations or reclassification of the Common Shares; (ii) issuance to all
holders of Common Shares of rights or warrants to subscribe for or purchase
Common Shares at less than their current market price (as defined in the
Warrant Agreement for such series of Common Shares Warrants); and (iii)
certain distributions of evidences of indebtedness or assets (including
securities but excluding cash dividends or distributions paid out of
consolidated earnings or retained earnings or dividends payable in Common
Shares) or of subscription rights and warrants (excluding those referred to
above).
 
  No adjustment in the exercise price of, and the number of Common Shares
covered by, a Common Shares Warrant will be made for regular quarterly or
other periodic or recurring cash dividends or distributions or for cash
dividends or distributions to the extent paid from consolidated earnings or
retained earnings. No adjustment will be required unless such adjustment would
require a change of at least 1% in the exercise price then in effect. Except
as stated above, the exercise price of, and the number of Common Shares
covered by, a Common Shares Warrant will not be adjusted for the issuance of
Common Shares or any securities convertible into or exchangeable for Common
Shares, or carrying the right or option to purchase or otherwise acquire the
foregoing, in exchange for cash, other property or services.
 
  In the event of any (i) consolidation or merger of Security Capital with or
into any entity (other than a consolidation or a merger that does not result
in any reclassification, conversion, exchange or cancellation of outstanding
Common Shares); (ii) sale, transfer, lease or conveyance of all or
substantially all of the assets of Security Capital; or (iii)
reclassification, capital reorganization or change of the Common Shares (other
than solely a change in par value or from par value to no par value), then any
holder of a Common Shares Warrant will be entitled, on or after the occurrence
of any such event, to receive on exercise of such Common Shares Warrant the
kind and amount of shares of beneficial interest or other securities, cash or
other property (or any combination thereof) that the holder would have
received had such holder exercised such holder's Common Shares Warrant
immediately prior to the occurrence of such event. If the consideration to be
received upon exercise of the Common Shares Warrant following any such event
consists of common shares of the surviving entity, then from and after the
occurrence of such event, the exercise price of such Common Shares Warrant
will be subject to the same anti-dilution and other adjustments described in
the second preceding paragraph, applied as if such common shares were Common
Shares.
 
                                      29
<PAGE>
 
                             DESCRIPTION OF RIGHTS
 
  As described under "Plan of Distribution," Security Capital may sell the
Offered Securities to investors directly through Rights. If Offered Securities
are to be sold through Rights, such Rights will be distributed as a dividend
to Security Capital's shareholders for which such shareholders will pay no
separate consideration. The Prospectus Supplement with respect to the Rights
offering will set forth the relevant terms of the Rights, including (i) the
kind and number of Offered Securities which will be offered pursuant to the
Rights, (ii) the period during which and the price at which the Rights will be
exercisable, (iii) the number of Rights to be issued, (iv) any provisions for
changes to or adjustments in the exercise price of the Rights and (v) any
other material terms of the Rights. See "Plan of Distribution."
 
         CERTAIN PROVISIONS OF MARYLAND LAW AND OF SECURITY CAPITAL'S
                              CHARTER AND BYLAWS
 
  The following paragraphs summarize certain provisions of Maryland law and
the Charter and Bylaws. The summary does not purport to be complete and is
subject to and qualified in its entirety by reference to Maryland law and to
the Charter and Bylaws.
 
CLASSIFICATION OF THE BOARD
 
  The Bylaws provide that the number of directors may be established by the
Board but may not be fewer than three nor more than fifteen. Any vacancy will
be filled, at any regular meeting or at any special meeting called for that
purpose, by a majority of the remaining directors, except that a vacancy
resulting from an increase in the number of directors will be filled by a
majority vote of the entire Board. Pursuant to the terms of the Charter, the
directors are divided into three classes. One class holds office for a term
expiring at the annual meeting of shareholders to be held in 1999, another
class holds office for a term expiring at the annual meeting of shareholders
to be held in 2000 and another class holds office for a term expiring at the
annual meeting of shareholders to be held in 2001. As the term of each class
expires, directors in that class will be elected for a term of three years and
until their successors are duly elected and qualify. Security Capital believes
that classification of the Board will help to assure the continuity and
stability of Security Capital's business strategies and policies as determined
by the Board.
 
  The classified director provision could have the effect of making the
removal of incumbent directors more time-consuming and difficult, which could
discourage a third party from making a tender offer or otherwise attempting to
obtain control of Security Capital, even though such an attempt might be
beneficial to Security Capital and its shareholders. At least two annual
meetings of shareholders, instead of one, will generally be required to effect
a change in a majority of the Board. Thus, the classified board provision
could increase the likelihood that incumbent directors will retain their
positions.
 
DIRECTOR LIABILITY LIMITATION AND INDEMNIFICATION
 
  Maryland law permits a Maryland corporation to include in its charter a
provision limiting the liability of its directors and officers to the
corporation and its stockholders for money damages except for liability
resulting from (a) actual receipt of an improper benefit or profit in money,
property or services or (b) active and deliberate dishonesty established by a
final judgment as being material to the cause of action. The Charter contains
such a provision which limits such liability to the maximum extent permitted
by Maryland law.
 
  The Bylaws provide that Security Capital will, to the maximum extent
permitted by Maryland law in effect from time to time, indemnify and pay or
reimburse reasonable expenses in advance of final disposition of a proceeding
to (a) any individual who is a present or former director or officer of
Security Capital or (b) any individual who, while a director of Security
Capital and at the request of Security Capital, serves or has served
 
                                      30
<PAGE>
 
another corporation, partnership, joint venture, trust, employee benefit plan
or any other enterprise as a director, officer, partner or trustee of such
corporation, partnership, joint venture, trust, employee benefit plan or other
enterprise and who is made a party to the proceeding by reason of his or her
service in that capacity. Security Capital has the power, with the approval of
the Board, to provide such indemnification and advancement of expenses to a
person who has served a predecessor of Security Capital in any of the
capacities described in (a) or (b) above and to any employee or agent of
Security Capital or its predecessors.
 
  Maryland law requires a corporation (unless its charter requires otherwise,
which the Charter does not) to indemnify a director or officer who has been
successful, on the merits or otherwise, in the defense of any proceeding to
which he or she is made a party by reason of his or her service in that
capacity. Maryland law permits a corporation to indemnify its present and
former directors and officers, among others, against judgments, penalties,
fines, settlements and reasonable expenses actually incurred by them in
connection with any proceeding to which they may be made party by reason of
their service in those or other capacities unless it is established that (a)
the act or omission of the director or officer was material to the matter
giving rise to the proceeding and (i) was committed in bad faith or (ii) was
the result of active and deliberate dishonesty, (b) the director or officer
actually received an improper personal benefit in money, property or services
or (c) in the case of any criminal proceeding, the director or officer had
reasonable cause to believe that the act or omission was unlawful. However, a
Maryland corporation may not indemnify for an adverse judgment in a suit by or
in the right of the corporation or for a judgment of liability on the basis
that personal benefit was improperly received, unless in either case a court
orders indemnification and then only for expenses. In addition, Maryland law
permits a corporation to advance reasonable expenses to a director or officer
upon the corporation's receipt of (a) a written affirmation by the director or
officer of his or her good faith belief that he or she has met the standard of
conduct necessary for indemnification by the corporation and (b) a written
undertaking by him or her or on his or her behalf to repay the amount paid or
reimbursed by the corporation if it shall ultimately be determined that the
standard of conduct was not met.
 
  Additionally, Security Capital has entered into indemnity agreements with
each of its officers and directors which provide for reimbursement of all
expenses and liabilities of such officer or director, arising out of any
lawsuit or claim against that officer or director due to the fact that he or
she was or is serving as an officer or director, except for such liabilities
and expenses (a) the payment of which is judicially determined to be unlawful,
(b) relating to claims under Section 16(b) of the Exchange Act or (c) relating
to judicially determined criminal violations.
 
  Insofar as indemnification for liabilities arising under the Securities Act
may be permitted to directors, officers or persons controlling Security
Capital pursuant to the foregoing provisions, Security Capital has been
informed that in the opinion of the Commission such indemnification is against
public policy as expressed in the Securities Act and is therefore
unenforceable.
 
BUSINESS COMBINATIONS
 
  Under Maryland law, certain "business combinations" (including a merger,
consolidation, share exchange, or, in certain circumstances, an asset transfer
or issuance or reclassification of equity securities) between a Maryland
corporation and any person who beneficially owns 10% or more of the voting
power of the corporation's shares or an affiliate of the corporation who, at
any time within the two-year period prior to the date in question, was the
beneficial owner of 10% or more of the voting power of the then-outstanding
voting stock of the corporation (an "Interested Stockholder") or an affiliate
of an Interested Stockholder are prohibited for five years after the most
recent date on which the Interested Stockholder becomes an Interested
Stockholder. Thereafter, any such business combination must be recommended by
the board of directors of the corporation and approved by the affirmative vote
of at least (a) 80% of the votes entitled to be cast by holders of outstanding
voting shares of the corporation and (b) two-thirds of the votes entitled to
be cast by holders of outstanding voting shares of the corporation other than
shares held by the Interested Stockholder with whom (or with whose affiliate)
the business combination is to be effected, unless, among other conditions,
the corporation's stockholders receive a minimum price (as defined under
Maryland law) for their shares and the consideration is
 
                                      31
<PAGE>
 
received in cash or in the same form as previously paid by the Interested
Stockholder for its shares. These provisions of Maryland law do not apply,
however, to business combinations that are approved or exempted by the board
of directors of the corporation prior to the time that the Interested
Stockholder becomes an Interested Stockholder.
 
  Security Capital's Charter exempts from these provisions of Maryland law any
business combination with SC-USREALTY and its affiliates and successors. As a
result, SC-USREALTY and its affiliates and successors may be able to enter
into business combinations with Security Capital that may not be in the best
interests of its stockholders without compliance by Security Capital with the
supermajority vote requirements and other provisions of the statute.
 
CONTROL SHARE ACQUISITIONS
 
  Maryland law provides that "Control Shares" of a Maryland corporation
acquired in a "Control Share acquisition" have no voting rights except to the
extent approved by a vote of two-thirds of the votes entitled to be cast on
the matter, excluding shares of stock owned by the acquiror or by officers or
directors who are employees of the corporation. "Control Shares" are voting
shares of stock which, if aggregated with all other such shares of stock
previously acquired by the acquiror, or in respect of which the acquiror is
able to exercise or direct the exercise of voting power (except solely by
virtue of a revocable proxy), would entitle the acquiror to exercise voting
power in electing directors within one of the following ranges of voting
power: (i) one-fifth or more but less than one-third, (ii) one-third or more
but less than a majority, or (iii) a majority of all voting power. Control
Shares do not include shares the acquiring person is then entitled to vote as
a result of having previously obtained stockholder approval. A "Control Share
acquisition" means the acquisition of Control Shares, subject to certain
exceptions.
 
  A person who has made or proposes to make a Control Share acquisition, upon
satisfaction of certain conditions (including an undertaking to pay expenses),
may compel the board of directors to call a special meeting of stockholders to
be held within 50 days of demand to consider the voting rights of the shares.
If no request for a meeting is made, the corporation may itself present the
question at any stockholders meeting.
 
  If voting rights are not approved at the meeting or if the acquiring person
does not deliver an acquiring person statement as required by the statute,
then, subject to certain conditions and limitations, the corporation may
redeem any or all of the Control Shares (except those for which voting rights
have previously been approved) for fair value determined, without regard to
the absence of voting rights for the Control Shares, as of the date of the
last Control Share acquisition by the acquiror or of any meeting of
stockholders at which the voting rights of such shares are considered and not
approved. If voting rights for Control Shares are approved at a stockholders
meeting and the acquiror becomes entitled to vote a majority of the shares
entitled to vote, all other stockholders may exercise appraisal rights. The
fair value of the shares as determined for purposes of such appraisal rights
may not be less than the highest price per share paid by the acquiror in the
Control Share acquisition.
 
  The Control Share acquisition statute does not apply to shares acquired in a
merger, consolidation or share exchange if the corporation is a party to the
transaction, or to acquisitions approved or exempted by the charter or bylaws
of the corporation.
 
  Security Capital's Bylaws contain a provision exempting SC-USREALTY and its
affiliates and successors from the provisions of the Control Share acquisition
statute.
 
ADVANCE NOTICE OF DIRECTOR NOMINATIONS AND NEW BUSINESS
 
  For nominations or other business to be properly brought before an annual
meeting of shareholders by a stockholder, the Bylaws require such shareholder
to deliver a notice to the Secretary, absent specified circumstances, not less
than 60 days nor more than 90 days prior to the first anniversary of the
preceding year's annual meeting setting forth: (i) as to each person whom the
shareholder proposes to nominate for election or
 
                                      32
<PAGE>
 
reelection as a director, all information relating to such person that is
required to be disclosed in solicitations of proxies for the election of
directors, pursuant to Regulation 14A of the Exchange Act; (ii) as to any
other business that the shareholder proposes to bring before the meeting, a
brief description of the business desired to be brought before the meeting,
the reasons for conducting such business at the meeting and any material
interest in such business of such shareholder and of the beneficial owner, if
any, on whose behalf the proposal is made; and (iii) as to the shareholder
giving notice and the beneficial owner, if any, on whose behalf the nomination
or proposal is made, (x) the name and address of such shareholder as they
appear on Security Capital's books, and of such beneficial owner and (y) the
number of Class A Shares or Class B Shares which are owned beneficially and of
record by such shareholder and such beneficial owner, if any.
 
                             PLAN OF DISTRIBUTION
 
  The Offered Securities may be offered directly by Security Capital, through
agents designated from time to time by Security Capital, to or through
underwriters or dealers. Direct sales to investors may be accomplished through
subscription offerings or through Rights distributed to Security Capital's
shareholders. In connection with subscription offerings or the distribution of
Rights to shareholders, if all of the underlying Offered Securities are not
subscribed for, Security Capital may sell such unsubscribed Offered Securities
to third parties directly or through underwriters or agents and, in addition,
whether or not all of the underlying Offered Securities are subscribed for,
Security Capital may concurrently offer additional Offered Securities to third
parties directly or through underwriters or agents. Any such underwriter,
dealer or agent involved in the offer and sale of the Offered Securities will
be named in the applicable Prospectus Supplement.
 
  The distribution of the Offered Securities may be effected from time to time
in one or more transactions at a fixed price or prices, which may be changed,
or at prices related to the prevailing market prices at the time of sale or at
negotiated prices (any of which may represent a discount from the prevailing
market prices). Security Capital also may, from time to time, authorize
underwriters acting as Security Capital's agents to offer and sell the Offered
Securities on such terms and conditions as are set forth in the applicable
Prospectus Supplement. In connection with the sale of Offered Securities,
underwriters may be deemed to have received compensation from Security Capital
in the form of underwriting discounts or commissions and may also receive
commissions from purchasers of Offered Securities for whom they may act as
agent. Underwriters may sell Offered Securities to or through dealers, and
such dealers may receive compensation in the form of discounts, concessions or
commissions from the underwriters and/or commissions from the purchasers for
whom they may act as agent.
 
  Any underwriting compensation paid by Security Capital to underwriters or
agents in connection with the offering of Offered Securities, and any
discounts, concessions or commissions allowed by underwriters to participating
dealers, will be set forth in the applicable Prospectus Supplement.
Underwriters, dealers and agents participating in the distribution of the
Offered Securities may be deemed to be underwriters, and any discounts and
commissions received by them and any profit realized by them on resale of the
Offered Securities may be deemed to be underwriting discounts and commissions,
under the Securities Act. Underwriters, dealers and agents may be entitled,
under agreements entered into with Security Capital, to indemnification
against and contribution toward certain civil liabilities, including
liabilities under the Securities Act.
 
  If so indicated in the applicable Prospectus Supplement, Security Capital
will authorize dealers acting as Security Capital's agents to solicit offers
by certain institutions to purchase Offered Securities from Security Capital
at the public offering price set forth in such Prospectus Supplement pursuant
to delayed delivery contracts ("Contracts") providing for payment and delivery
on the date or dates stated in such Prospectus Supplement. Each Contract will
be for an amount not less than, and the aggregate principal amount of Offered
Securities sold pursuant to Contracts will be not less nor more than, the
respective amounts stated in the applicable Prospectus Supplement.
Institutions with whom Contracts, when authorized, may be made include
commercial and savings banks, insurance companies, pension funds, investment
companies, educational and charitable institutions and other institutions but
will in all cases be subject to the approval of Security Capital. Contracts
will not be subject to any conditions except (i) the purchase by an
institution of the Offered Securities covered by its Contracts may not at the
time of delivery be prohibited under the laws of any jurisdiction in the U.S.
to which such institution
 
                                      33
<PAGE>
 
is subject and (ii) if the Offered Securities are being sold to underwriters,
Security Capital must have sold to such underwriters the total principal
amount of the Offered Securities less the principal amount thereof covered by
Contracts.
 
  Certain of the underwriters and their affiliates may be customers of, engage
in transactions with and perform services for Security Capital and its
subsidiaries in the ordinary course of business.
 
                                    EXPERTS
 
  The consolidated financial statements and related schedules of Security
Capital and ProLogis Trust (formerly known as Security Capital Industrial
Trust) incorporated herein by reference, as included in Security Capital's
annual report on Form 10-K, and the financial statements and related schedules
of Homestead Village Incorporated as of December 31, 1997, consolidated into
the financial statements of Security Capital, have been audited by Arthur
Andersen LLP, independent public accountants, as indicated in their reports
with respect thereto, and are incorporated herein in reliance upon the
authority of such firm as experts in giving such reports.
 
  The financial statements of Security Capital Pacific Trust as of December
31, 1997 and 1996, and for each of the years in the three-year period ended
December 31, 1997, as included in Security Capital's annual report on Form 10-
K, have been incorporated by reference herein and in the Registration
Statement in reliance upon the report of KPMG Peat Marwick LLP, independent
certified public accountants, incorporated by reference herein and upon the
authority of said firm as experts in accounting and auditing.
 
  The financial statements and related schedules of Security Capital Atlantic
Incorporated as of December 31, 1996 and December 31, 1995 and for the three
years then ended and the financial statements and related schedules of
Homestead Village Incorporated as of December 31, 1996 and for the year then
ended consolidated into the financial statements of Security Capital
incorporated herein by reference have been audited by Ernst & Young LLP,
independent auditors, to the extent indicated in their reports thereon also
incorporated herein by reference. Those financial statements have been
consolidated in reliance on those reports given on the authority of that firm
as experts in accounting and auditing.
 
  The financial statements of SC-USREALTY, incorporated in this Prospectus by
reference to the Annual Report on Form 10-K of Security Capital for the year
ended December 31, 1997, have been audited by Price Waterhouse Sarl,
independent accountants, as indicated in their reports thereon, also
incorporated by reference. Such financial statements, to the extent they have
been included in the consolidated financial statements of Security Capital,
have been so included in reliance on their reports given on the authority of
such firm as experts in auditing and accounting.
 
  With respect to the unaudited condensed interim financial statements of
Security Capital for the quarters ended March 31 and June 30, 1998,
incorporated herein by reference, Arthur Andersen LLP has applied limited
procedures in accordance with professional standards for a review of that
information. However, their separate report thereon states that they did not
audit and they do not express an opinion on that interim financial
information. Accordingly, the degree of reliance on their report on that
information should be restricted in light of the limited nature of the review
procedures applied. In addition, the accountants are not subject to the
liability provisions of Section 11 of the Securities Act for their report on
the unaudited interim financial information because their report is not a
"report" or a "part" of the Registration Statement prepared or certified by
the accountants within the meaning of Sections 7 and 11 of the Securities Act.
 
                                 LEGAL MATTERS
 
  Certain legal matters in respect of the validity of the issuance of the
Offered Securities will be passed upon for Security Capital by Mayer, Brown &
Platt, Chicago, Illinois. Mayer, Brown & Platt has in the past represented and
is currently representing Security Capital and certain of its affiliates.
 
                                      34
<PAGE>
 
                                    PART II
 
                    INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 14. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.
 
  The following table sets forth the estimated expenses in connection with the
issuance and distribution of the securities registered hereby, all of which
will be paid by the Registrant:
 
<TABLE>
      <S>                                                            <C>
      SEC registration fee.......................................... $  295,000
      Printing and duplicating expenses.............................    125,000
      Legal fees and expenses.......................................    300,000
      Blue Sky fees and expenses....................................     25,000
      Accounting fees and expenses..................................    100,000
      Rating agency fees............................................    475,000
      Trustee and transfer agent fees...............................     50,000
      Miscellaneous expenses........................................     50,000
                                                                     ----------
          Total..................................................... $1,420,000
                                                                     ==========
</TABLE>
 
ITEM 15. INDEMNIFICATION OF DIRECTORS AND OFFICERS.
 
  Article EIGHTH of the Registrant's Charter provides as follows with respect
to the indemnification of directors and officers of the Registrant:
 
    "The Corporation shall have the power, to the maximum extent permitted by
  Maryland law in effect from time to time, to obligate itself to indemnify
  and to pay or reimburse reasonable expenses in advance of final disposition
  of a proceeding to (a) any individual who is a present or former director
  or officer of the Corporation or (b) any individual who, while a director
  or officer of the Corporation and at the request of the Corporation, serves
  or has served as a director, officer, partner or trustee of another
  corporation, partnership, joint venture, trust, employee benefit plan or
  any other enterprise from and against any claim or liability to which such
  person may become subject or which such person may incur by reason of his
  or her status as a present or former director or officer of the
  Corporation. The Corporation shall have the power, with the approval of the
  Board of Directors, to provide such indemnification and advancement of
  expenses to a person who served a predecessor of the Corporation in any of
  the capacities described in (a) or (b) above and to any employee or agent
  of the Corporation or a predecessor of the Corporation."
 
  Article NINTH of the Registrant's Charter provides as follows with respect
to limitation of liability of its directors and officers:
 
    "To the maximum extent that Maryland law in effect from time to time
  permits limitation of the liability of directors and officers of a Maryland
  corporation, no director or officer of the Corporation shall be liable to
  the Corporation or its stockholders for money damages. Neither the
  amendment nor repeal of this Article NINTH, nor the adoption or amendment
  of any other provision of the charter or Bylaws of the Corporation
  inconsistent with this Article NINTH, shall apply to or affect in any
  respect the applicability of the preceding sentence with respect to any act
  or failure to act which occurred prior to such amendment, repeal or
  adoption."
 
  Article XIII of the Registrant's Bylaws provides as follows with respect to
indemnification of its directors and officers and advances for expenses:
 
    "To the maximum extent permitted by Maryland law in effect from time to
  time, the Corporation shall indemnify and, without requiring a preliminary
  determination of the ultimate entitlement to indemnification, shall pay or
  reimburse reasonable expenses in advance of final disposition of a
  proceeding to (a) any
 
                                     II-1
<PAGE>
 
  individual who is a present or former director or officer of the
  Corporation and who is made a party to the proceeding by reason of his
  service in that capacity or (b) any individual who, while a director of the
  Corporation and at the request of the Corporation, serves or has served
  another corporation, partnership, joint venture, trust, employee benefit
  plan or any other enterprise as a director, officer, partner or trustee of
  such corporation, partnership, joint venture, trust, employee benefit plan
  or other enterprise and who is made a party to the proceeding by reason of
  his or her service in that capacity. The Corporation may, with the approval
  of its Board of Directors, provide such indemnification and advance for
  expenses to a person who served a predecessor of the Corporation in any of
  the capacities described in (a) or (b) above and to any employee or agent
  of the Corporation or a predecessor of the Corporation."
 
    "Neither the amendment nor repeal of this Article, nor the adoption or
  amendment of any other provision of the Bylaws or charter of the
  Corporation inconsistent with this Article, shall apply to or affect in any
  respect the applicability of the preceding paragraph with respect to any
  act or failure to act which occurred prior to such amendment, repeal or
  adoption."
 
  Maryland law permits a Maryland corporation to include in its charter a
provision limiting the liability of its directors and officers to the
corporation and its stockholders for money damages except for liability
resulting from (a) actual receipt of an improper benefit or profit in money,
property or services or (b) active and deliberate dishonesty established by a
final judgment as being material to the cause of action. The Charter contains
such a provision which limits such liability to the maximum extent permitted
by Maryland law.
 
  Maryland law requires a corporation (unless its charter requires otherwise,
which the Charter does not) to indemnify a director or officer who has been
successful, on the merits or otherwise, in the defense of any proceeding to
which he or she is made a party by reason of his or her service in that
capacity. Maryland law permits a corporation to indemnify its present and
former directors and officers, among others, against judgments, penalties,
fines, settlements and reasonable expenses actually incurred by them in
connection with any proceeding to which they may be made party by reason of
their service in those or other capacities unless it is established that (a)
the act or omission of the director or officer was material to the matter
giving rise to the proceeding and (i) was committed in bad faith or (ii) was
the result of active and deliberate dishonesty, (b) the director or officer
actually received an improper personal benefit in money, property or services
or (c) in the case of any criminal proceeding, the director or officer had
reasonable cause to believe that the act or omission was unlawful. However, a
Maryland corporation may not indemnify for an adverse judgment in a suit by or
in the right of the corporation or for a judgment of liability on the basis
that personal benefit was improperly received, unless in either case a court
orders indemnification and then only for expenses. In addition, Maryland law
permits a corporation to advance reasonable expenses to a director or officer
upon the corporation's receipt of (a) a written affirmation by the director of
officer of his or her good faith belief that he or she has met the standard of
conduct necessary for indemnification by the corporation and (b) a written
undertaking by him or her or on his or her behalf to repay the amount paid or
reimbursed by the corporation if it shall ultimately be determined that the
standard of conduct was not met.
 
  The Registrant has entered into indemnity agreements with each of its
officers and directors which provide for reimbursement of all expenses and
liabilities of that officer or director, arising out of any lawsuit or claim
against that officer or director due to the fact that he or she was or is
serving as an officer or director, except for liabilities and expenses (a) the
payment of which is judicially determined to be unlawful, (b) relating to
claims under Section 16(b) of the Securities Exchange Act of 1934 or (c)
relating to judicially determined criminal violations.
 
ITEM 16. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.
 
  See the Exhibit Index, which is hereby incorporated herein by reference.
 
                                     II-2
<PAGE>
 
ITEM 17. UNDERTAKINGS.
 
  The undersigned Registrant hereby undertakes:
 
    (a) To file, during any period in which offers or sales are being made, a
  post-effective amendment to this Registration Statement:
 
      (i) To include any prospectus required by Section 10(a)(3) of the
    Securities Act of 1933;
 
      (ii) To reflect in the prospectus any facts or events arising after
    the effective date of the Registration Statement (or the most recent
    post-effective amendment thereof) which, individually or in the
    aggregate, represent a fundamental change in the information set forth
    in the Registration Statement; notwithstanding the foregoing, any
    increase or decrease in the volume of securities offered (if the total
    dollar value of securities offered would not exceed that which was
    registered) and any deviation from the low or high and of the estimated
    maximum offering range may be reflected in the form of prospectus filed
    with the Commission pursuant to Rule 424(b) if, in the aggregate, the
    changes in volume and price represent no more than a 20 percent change
    in the maximum aggregate offering price set forth in the "Calculation
    of Registration Fee" table in the effective Registration Statement;
 
      (iii) To include any material information with respect to the plan of
    distribution not previously disclosed in the Registration Statement or
    any material change to such information in the Registration Statement;
 
  Provided, however, that paragraphs (a)(i) and (a)(ii) do not apply if the
  information required to be included in a post-effective amendment by those
  paragraphs is contained in periodic reports filed with or furnished to the
  Commission by the Registrant pursuant to Section 13 or 15(d) of the
  Securities Exchange Act of 1934 that are incorporated by reference in the
  Registration Statement.
 
    (b) That, for the purpose of determining any liability under the
  Securities Act of 1933, each such post-effective amendment shall be deemed
  to be a new registration statement relating to the securities offered
  therein, and the offering of such securities at that time shall be deemed
  to be the initial bona fide offering thereof.
 
    (c) To remove from registration by means of a post-effective amendment
  any of the securities being registered which remain unsold at the
  termination of the offering.
 
  The undersigned Registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of the
Registrant's annual report pursuant to Section 13(a) or 15(d) of the
Securities Exchange Act of 1934 that is incorporated by reference in the
Registration Statement shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such
securities at that time shall be deemed to be the initial bona fide offering
thereof.
 
  The undersigned Registrant hereby undertakes to supplement the prospectus,
after the expiration of the subscription period, to set forth the results of
the subscription offer, the transactions by the underwriters during the
subscription period, the amount of unsubscribed securities to be purchased by
the underwriters, and the terms of any subsequent reoffering thereof. If any
public offering by the underwriters is to be made on terms differing from
those set forth on the cover page of the prospectus, a post-effective
amendment will be filed to set forth the terms of such offering.
 
  Insofar as indemnification for liabilities arising under the Securities Act
of 1933 may be permitted to directors, officers and controlling persons of the
Registrant pursuant to the provisions set forth or described in Item 15 of
this Registration Statement, or otherwise, the Registrant has been advised
that in the opinion of the Securities and Exchange Commission such
indemnification is against public policy as expressed in the Securities Act of
1933 and is, therefore, unenforceable. If a claim for indemnification against
such liabilities (other than the payment by the Registrant of expenses
incurred or paid by a director, officer or controlling person of the
Registrant in the successful defense of any action, suit or proceeding) is
asserted by such director, officer or controlling person in connection with
the securities being registered, the Registrant will, unless in the opinion of
its counsel the matter has been settled by controlling precedent, submit to a
court of appropriate jurisdiction the question whether such indemnification by
it is against public policy as expressed in the Securities Act of 1933 and
will be governed by the final adjudication of such issue.
 
                                     II-3
<PAGE>
 
                               POWER OF ATTORNEY
 
  KNOW ALL MEN BY THESE PRESENTS, that each of Security Capital Group
Incorporated, a Maryland corporation, and each of the undersigned directors
and officers of Security Capital Group Incorporated, hereby constitutes and
appoints William D. Sanders, C. Ronald Blankenship, Thomas G. Wattles, Jeffrey
A. Klopf and Mark W. Pearson its, his or her true and lawful attorneys-in-fact
and agents, for it, him or her and in its, his or her name, place and stead,
in any and all capacities, with full power to act alone, to sign any and all
amendments to this Registration Statement, and any registration statement to
register additional securities pursuant to Rule 462 under the Securities Act
of 1933, and to file each such document with all exhibits thereto, and any and
all documents in connection therewith, with the Securities and Exchange
Commission, hereby granting unto said attorneys-in-fact and agents, and each
of them, full power and authority to do and perform any and all acts and
things requisite and necessary to be done in and about the premises, as fully
and to all intents and purposes as it, he or she might or could do in person,
hereby ratifying and confirming all that said attorneys-in-fact and agents, or
any of them, may lawfully do or cause to be done by virtue hereof.
 
                                     II-4
<PAGE>
 
                                  SIGNATURES
 
  PURSUANT TO THE REQUIREMENTS OF THE SECURITIES ACT OF 1933, THE REGISTRANT
CERTIFIES THAT IT HAS REASONABLE GROUNDS TO BELIEVE THAT IT MEETS ALL THE
REQUIREMENTS FOR FILING ON FORM S-3 AND HAS DULY CAUSED THIS REGISTRATION
STATEMENT TO BE SIGNED ON ITS BEHALF BY THE UNDERSIGNED, THEREUNTO DULY
AUTHORIZED, IN THE CITY OF SANTA FE, STATE OF NEW MEXICO ON THE 30TH DAY OF
SEPTEMBER, 1998.
 
                                          Security Capital Group Incorporated
 
                                                 /s/ William D. Sanders
                                          By: _________________________________
                                             ----------------------------------
                                                     William D. Sanders
                                          Name: _______________________________
                                                   Chairman, Director and
                                          Title: ______________________________
                                              _____Chief Executive Officer_____
 
  PURSUANT TO THE REQUIREMENTS OF THE SECURITIES ACT OF 1933, THIS
REGISTRATION STATEMENT HAS BEEN SIGNED BY THE FOLLOWING PERSONS IN THE
CAPACITIES AND ON THE DATES INDICATED.
 
<TABLE>
<CAPTION>
             SIGNATURE                           TITLE                    DATE
             ---------                           -----                    ----
 
 
<S>                                  <C>                           <C>
     /s/ William D. Sanders          Chairman, Director and        September 30, 1998
____________________________________  Chief Executive Officer
         William D. Sanders           (Principal Executive
                                      Officer)
 
       /s/ Paul E. Szurek            Chief Financial Officer       September 30, 1998
____________________________________  (Principal Financial
           Paul E. Szurek             Officer)
 
       /s/ James C. Swaim            Vice President                September 30, 1998
____________________________________  (Principal Accounting
           James C. Swaim             Officer)
 
   /s/ C. Ronald Blankenship         Vice Chairman and Director    September 30, 1998
____________________________________
       C. Ronald Blankenship
 
      /s/ Samuel W. Bodman           Director                      September 30, 1998
____________________________________
          Samuel W. Bodman
 
      /s/ Hermann Buerger            Director                      September 30, 1998
____________________________________
          Hermann Buerger
 
    /s/ John P. Frazee, Jr.          Director                      September 30, 1998
____________________________________
        John P. Frazee, Jr.
 
  /s/ Cyrus F. Freidheim, Jr.        Director                      September 30, 1998
____________________________________
      Cyrus F. Freidheim, Jr.
 
     /s/ H. Laurance Fuller          Director                      September 30, 1998
____________________________________
         H. Laurance Fuller
 
        /s/ Ray L. Hunt              Director                      September 30, 1998
____________________________________
            Ray L. Hunt
 
    /s/ John T. Kelley, III          Director                      September 30, 1998
____________________________________
        John T. Kelley, III
 
     /s/ Peter S. Willmott           Director                      September 30, 1998
____________________________________
         Peter S. Willmott
 
</TABLE>
 
 
                                     II-5
<PAGE>
 
                               INDEX TO EXHIBITS
 
<TABLE>
<CAPTION>
  EXHIBIT
  NUMBER                        DOCUMENT DESCRIPTION
  -------                       --------------------
 
 <C>       <S>                                                              <C>
  4.1      Form of Proposed Senior Indenture
  4.2      Form of Proposed Subordinated Indenture
  4.3      Security Capital Articles of Amendment and Restatement (incor-
           porated by reference to Exhibit 4.1 to Security Capital's Reg-
           istration Statement on Form S-11 (File No. 333-20637) (the "SC
           Form S-11"))
  4.4      Security Capital Amended and Restated Bylaws (incorporated by
           reference to Exhibit 4.2 to the SC Form S-11)
  4.5      Rights Agreement, dated as of April 21, 1997, between Security
           Capital and The First National Bank of Boston, as Rights
           Agent, including form of Rights Certificate (incorporated by
           reference to Exhibit 4.1 to Security Capital's Form 10-Q filed
           November 14, 1997 (File No. 1-13355) (the "SC Form 10-Q"))
  4.6      Form of stock certificate for shares of Class A Common Stock
           of Security Capital (incorporated by reference to Exhibit 4.4
           to the SC Form S-11)
  4.7      Form of stock certificate for shares of Class B Common Stock
           of Security Capital (incorporated by reference to Exhibit 4.5
           to the SC Form S-11)
  5.1      Opinion of Mayer, Brown & Platt, Chicago, Illinois
 15.1      Letter of Arthur Andersen LLP
 23.1      Consent of Mayer, Brown & Platt (included in the opinion filed
           as Exhibit 5.1)
 23.2      Consent of Arthur Andersen LLP
 23.3      Consent of KPMG Peat Marwick LLP
 23.4      Consent of Price Waterhouse Sarl
 23.5      Consent of Ernst & Young LLP
 23.6      Consent of Ernst & Young LLP
 24.1      Power of Attorney (included at page II-4)
 25.1      Form T-1 Statement of Eligibility of Qualification under the
           Trust Indenture Act of 1939 of State Street Bank and Trust
           Company
</TABLE>
 
                                      II-6

<PAGE>
 
                                                                     EXHIBIT 4.1


================================================================================


                      SECURITY CAPITAL GROUP INCORPORATED



                                      TO

                      STATE STREET BANK AND TRUST COMPANY
                                    Trustee



                            ______________________


                                   Indenture

                          Dated as of _________, 1998


                            ______________________


                            Senior Debt Securities


================================================================================
<PAGE>
 
                               TABLE OF CONTENTS

<TABLE> 
<CAPTION> 
                                                                           Page
                                                                           ----
<S>                                                                        <C> 
RECITALS

                                  ARTICLE ONE
            DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION


     SECTION 101. Definitions..........................................      1
          Act..........................................................      2
          Additional Amounts...........................................      2
          Affiliate....................................................      2
          Authenticating Agent.........................................      2
          Authorized Newspaper.........................................      2
          Bankruptcy Law...............................................      2
          Bearer Security..............................................      2
          Board of Directors...........................................      2
          Board Resolution.............................................      2
          Business Day.................................................      2
          Capital Stock................................................      3
          CEDEL........................................................      3
          Commission...................................................      3
          Common Depositary............................................      3
          Common Shares................................................      3
          Company......................................................      3
          Company Certificate..........................................      3
          Company Request" and "Company Order..........................      3
          Conversion Event.............................................      3
          Corporate Trust Office.......................................      4
          corporation..................................................      4
          coupon.......................................................      4
          covenant defeasance..........................................      4
          Custodian....................................................      4
          Defaulted Interest...........................................      4
          defeasance...................................................      4
          Dollar" or "$................................................      4
          DTC..........................................................      4
          ECU..........................................................      4
          Euroclear....................................................      4
          European Communities.........................................      4
          European Monetary System.....................................      4
          Event of Default.............................................      4
</TABLE> 

                                       i
<PAGE>
 
<TABLE> 
<CAPTION> 
                                                                           Page
                                                                           ----
<S>                                                                        <C> 
          Exchange Act.................................................      4
          Exchange Date................................................      5
          Foreign Currency.............................................      5
          GAAP.........................................................      5
          Government Obligations.......................................      5
          Hedging Obligations..........................................      5
          Holder.......................................................      5
          Indenture....................................................      5
          Indexed Security.............................................      6
          interest.....................................................      6
          Interest Payment Date........................................      6
          Make-Whole Amount............................................      6
          mandatory sinking fund payment...............................      6
          Maturity.....................................................      6
          Notice of Default............................................      6
          Opinion of Counsel...........................................      6
          optional sinking fund payment................................      6
          Original Issue Discount Security.............................      6
          Outstanding..................................................      7
          Paying Agent.................................................      8
          Payment Default..............................................      8
          Permitted Investments........................................      8
          Person.......................................................     10
          Place of Payment.............................................     10
          Predecessor Security.........................................     10
          Qualified GIC................................................     10
          Redemption Date..............................................     11
          Redemption Price.............................................     11
          Registered Security..........................................     11
          Regular Record Date..........................................     11
          Repayment Date...............................................     11
          Repayment Price..............................................     11
          Required Filing Dates........................................     11
          Responsible Officer..........................................     11
          Securities Act...............................................     11
          Security.....................................................     11
          Security Register" and "Security Registrar...................     12
          Significant Subsidiary.......................................     12
          Special Record Date..........................................     12
          Stated Maturity..............................................     12
          Subsidiary...................................................     12
</TABLE> 

                                      ii
<PAGE>
 
<TABLE> 
<CAPTION> 
                                                                           Page
                                                                           ----
<S>                                                                        <C> 
          Trust Indenture Act...........................................    12
          Trustee.......................................................    12
          United States.................................................    13
          United States person..........................................    13
          Yield to Maturity.............................................    13
     SECTION 102. Compliance Certificates and Opinions..................    13
     SECTION 103. Form of Documents Delivered to Trustee................    14
     SECTION 104. Acts of Holders.......................................    14
     SECTION 105. Notices to Trustee and Company........................    16
     SECTION 106. Notice to Holders; Waiver.............................    16
     SECTION 107. Effect of Headings and Table of Contents..............    17
     SECTION 108. Successors and Assigns................................    17
     SECTION 109. Separability Clause...................................    18
     SECTION 110. Benefits of Indenture.................................    18
     SECTION 111. No Personal Liability.................................    18
     SECTION 112. Governing Law.........................................    18
     SECTION 113. Legal Holidays........................................    18
     SECTION 114. Counterparts..........................................    18

                                 ARTICLE TWO
                               SECURITIES FORMS

     SECTION 201. Forms of Securities..................................     19
     SECTION 202. Form of Trustee's Certificate of Authentication......     19
     SECTION 203. Securities Issuable in Global Form...................     19

                                ARTICLE THREE
                                THE SECURITIES

     SECTION 301. Amount Unlimited; Issuable in Series.................     20
     SECTION 302. Denominations........................................     24
     SECTION 303. Execution, Authentication, Delivery and Dating.......     24
     SECTION 304. Temporary Securities.................................     27
     SECTION 305. Registration, Registration of Transfer and Exchange..     29
     SECTION 306. Mutilated, Destroyed, Lost and Stolen Securities.....     33
     SECTION 307. Payment of Interest; Interest Rights Preserved.......     34
     SECTION 308. Persons Deemed Owners................................     36
     SECTION 309. Cancellation.........................................     37
     SECTION 310. Computation of Interest..............................     37
</TABLE> 

                                      iii
<PAGE>
 
<TABLE> 
<CAPTION> 
                                                                                          Page
                                                                                          ----
<S>                                                                                       <C> 
                                 ARTICLE FOUR
                          SATISFACTION AND DISCHARGE

     SECTION 401. Satisfaction and Discharge of Indenture..............................    37
     SECTION 402. Application of Trust Funds...........................................    39

                                 ARTICLE FIVE
                                   REMEDIES

     SECTION 501. Events of Default....................................................    39
     SECTION 502. Acceleration of Maturity; Rescission and Annulment...................    41
     SECTION 503. Collection of Indebtedness and Suits for Enforcement by Trustee......    42
     SECTION 504. Trustee May File Proofs of Claim.....................................    43
     SECTION 505. Trustee May Enforce Claims Without Possession of
                    Securities or Coupons..............................................    44
     SECTION 506. Application of Money Collected.......................................    44
     SECTION 507. Limitation on Suits..................................................    45
     SECTION 508. Unconditional Right of Holders to Receive Principal, Premium
                    or Make-Whole Amount, Interest and Additional Amounts..............    45
     SECTION 509. Restoration of Rights and Remedies...................................    46
     SECTION 510. Rights and Remedies Cumulative.......................................    46
     SECTION 511. Delay or Omission Not Waiver.........................................    46
     SECTION 512. Control by Holders of Securities.....................................    46
     SECTION 513. Waiver of Past Defaults..............................................    47
     SECTION 514. Waiver of Usury, Stay or Extension Laws..............................    47
     SECTION 515. Undertaking for Costs................................................    47

                                  ARTICLE SIX
                                  THE TRUSTEE

     SECTION 601. Notice of Defaults...................................................    48
     SECTION 602. Certain Rights of Trustee............................................    48
     SECTION 603. Not Responsible for Recitals or Issuance of Securities...............    49
     SECTION 604. May Hold Securities..................................................    50
     SECTION 605. Money Held in Trust; Permitted Investments...........................    50
     SECTION 606. Compensation and Reimbursement.......................................    51
     SECTION 607. Trustee Eligibility; Conflicting Interests...........................    51
     SECTION 608. Resignation and Removal; Appointment of Successor....................    52
     SECTION 609. Acceptance of Appointment by Successor...............................    53
     SECTION 610. Merger, Conversion, Consolidation or Succession to Business..........    54
     SECTION 611. Appointment of Authenticating Agent..................................    55
</TABLE> 

                                      iv
<PAGE>
 
<TABLE> 
<CAPTION> 
                                                                                          Page
                                                                                          ----
<S>                                                                                       <C> 
                               ARTICLE SEVEN    
               HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY

     SECTION 701. Disclosure of Names and Addresses of Holders..........................   56
     SECTION 702. Reports by Trustee....................................................   57
     SECTION 703. Company to Furnish Trustee Names and Addresses of Holders.............   57

                                 ARTICLE EIGHT
               CONSOLIDATION, MERGER, SALE, LEASE OR CONVEYANCE

     SECTION 801. Consolidations and Mergers of Company and Sales,
                    Leases and Conveyances..............................................   57
     SECTION 802. Rights and Duties of Successor Entity.................................   57
     SECTION 803. Company Certificate and Opinion of Counsel............................   58

                                ARTICLE NINE
                            SUPPLEMENTAL INDENTURES

     SECTION 901. Supplemental Indentures Without Consent of Holders....................   58
     SECTION 902. Supplemental Indentures with Consent of Holders.......................   60
     SECTION 903. Execution of Supplemental Indentures..................................   61
     SECTION 904. Effect of Supplemental Indentures.....................................   61
     SECTION 905. Conformity with Trust Indenture Act...................................   61
     SECTION 906. Reference in Securities to Supplemental Indentures....................   61
     SECTION 907. Notice of Supplemental Indentures.....................................   62

                                  ARTICLE TEN
                                   COVENANTS

     SECTION 1001. Payment of Principal, Premium or Make-Whole Amount,
                    Interest and Additional Amounts.....................................   62
     SECTION 1002. Maintenance of Office or Agency......................................   62
     SECTION 1003. Money for Securities Payments to Be Held in Trust....................   64
     SECTION 1004. Existence............................................................   65
     SECTION 1005. Maintenance of Properties............................................   65
     SECTION 1006. Insurance............................................................   66
     SECTION 1007. Payment of Taxes and Other Claims....................................   66
     SECTION 1008. Reports..............................................................   66
     SECTION 1009. Statement as to Compliance...........................................   67
     SECTION 1010. Additional Amounts...................................................   68
</TABLE> 

                                       v
<PAGE>
 
<TABLE> 
<CAPTION> 
                                                                                          Page
                                                                                          ----
<S>                                                                                       <C> 
     SECTION 1011. Waiver of Certain Covenants.........................................    69
     SECTION 1012. Seniority of Securities.............................................    69


                                                                                
                                ARTICLE ELEVEN                                  
                           REDEMPTION OF SECURITIES                             
                                                                                
     SECTION 1101. Applicability of Article............................................    69
     SECTION 1102. Election to Redeem; Notice to Trustee...............................    69
     SECTION 1103. Selection by Trustee of Securities to Be Redeemed...................    69
     SECTION 1104. Notice of Redemption................................................    70
     SECTION 1105. Deposit of Redemption Price.........................................    71
     SECTION 1106. Securities Payable on Redemption Date...............................    71
     SECTION 1107. Securities Redeemed in Part.........................................    72
                                                                                             
                                ARTICLE TWELVE                                               
                                 SINKING FUNDS                                               
                                                                                             
     SECTION 1201. Applicability of Article............................................    73
     SECTION 1202. Satisfaction of Sinking Fund Payments with Securities...............    73
     SECTION 1203. Redemption of Securities for Sinking Fund...........................    73
                                                                                             
                               ARTICLE THIRTEEN                                              
                      REPAYMENT AT THE OPTION OF HOLDERS                                     
                                                                                             
     SECTION 1301. Applicability of Article............................................    74
     SECTION 1302. Repayment of Securities.............................................    74
     SECTION 1303. Exercise of Option..................................................    74 
     SECTION 1304. When Securities Presented for Repayment Become Due and
                         Payable.......................................................    75
     SECTION 1305. Securities Repaid in Part...........................................    76

                               ARTICLE FOURTEEN
                      DEFEASANCE AND COVENANT DEFEASANCE

     SECTION 1401. Applicability of Article; Company's Option to Effect
                         Defeasance or Covenant Defeasance.............................    76
     SECTION 1402. Defeasance and Discharge............................................    76
     SECTION 1403. Covenant Defeasance.................................................    77
     SECTION 1404. Conditions to Defeasance or Covenant Defeasance.....................    77
     SECTION 1405. Deposited Money and Government Obligations to Be Held in  
                         Trust; Other Miscellaneous Provisions.........................    79
</TABLE> 

                                      vi
<PAGE>
 
<TABLE> 
<CAPTION> 
                                                                                               Page
                                                                                               ----
<S>                                                                                            <C> 
                               ARTICLE FIFTEEN  
                       MEETINGS OF HOLDERS OF SECURITIES

     SECTION 1501. Purposes for Which Meetings May Be Called...............................    81
     SECTION 1502. Call, Notice and Place of Meetings......................................    81
     SECTION 1503. Persons Entitled to Vote at Meetings....................................    81
     SECTION 1504. Quorum; Action..........................................................    81
     SECTION 1505. Determination of Voting Rights; Conduct and Adjournment of 
                         Meetings..........................................................    83
     SECTION 1506. Counting Votes and Recording Action of Meetings.........................    84
     SECTION 1507. Evidence of Action Taken by Holders.....................................    84
     SECTION 1508. Proof of Execution of Instruments.......................................    84
</TABLE> 


TESTIMONIUM
SIGNATURES AND SEALS
ACKNOWLEDGMENTS
EXHIBIT A - FORMS OF CERTIFICATION

                                      vii
<PAGE>
 
                        Reconciliation and tie between
     Trust Indenture Act of 1939, as amended (the "Trust Indenture Act"),
                                 and Indenture


     Trust Indenture Act Section                            Indenture Section
     ---------------------------                            -----------------
     310(a)(1), (2) and (5)                                 607(a)
     310(a)(3) and (4)                                      Not applicable
     310(b)                                                 608(d)
     310(c)                                                 Not applicable
     311                                                    Not applicable
     312(a)                                                 704
     312(b)                                                 Not applicable
     312(c)                                                 701
     313(a) and (c)                                         702
     313(b)                                                 Not applicable
     314(a)(1), (2) and (3)                                 1008
     314(a)(4)                                              1008
     314(b)                                                 Not applicable
     314(c) and (e)                                         102
     314(d)                                                 Not applicable
     315(a), (c), (d) and (e)                               Not applicable
     315(b)                                                 601
     316(a) (last sentence)                                 101 ("Outstanding")
     316(a)(1)(A)                                           512
     316(a)(1)(B)                                           513
     316(a)(2) and (c)                                      Not applicable
     316(b)                                                 508
     317(a)(1)                                              503
     317(a)(2)                                              504
     317(b)                                                 Not applicable
     318(a)                                                 112


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 Section 318(c) of the Trust
          Indenture Act, which provides that the provisions of 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.

                                     viii
<PAGE>
 
     INDENTURE, dated as of __________, 1998, from SECURITY CAPITAL GROUP
INCORPORATED, a Maryland corporation (hereinafter called the "Company"), having
                                                              -------          
its principal office at 125 Lincoln Avenue, Santa Fe, New Mexico 87501 to STATE
STREET BANK AND TRUST COMPANY, a Massachusetts trust company, as Trustee
hereunder (hereinafter called the "Trustee"), currently having its Corporate
                                   -------                                  
Trust Office at Two International Place, Corporate Trust Division, Boston,
Massachusetts 02110.

                                   RECITALS

     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 unsubordinated indebtedness, and has duly authorized the
execution and delivery of this Indenture to provide for the issuance from time
to time of the Securities, unlimited as to aggregate principal amount, to bear
interest at the rates or formulas, to mature at such times and to have such
other provisions as shall be fixed therefor as hereinafter provided.

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

     This Indenture is subject to the provisions of the Trust Indenture Act (as
herein defined) and the rules and regulations of the Commission (as herein
defined) promulgated thereunder which are required to be part of this Indenture
and, to the extent applicable, shall be governed by such provisions.

     NOW, THEREFORE, THIS INDENTURE WITNESSETH:

     For and in consideration of the premises and the purchase of the Securities
by the Holders (as herein defined) 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 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 Trust
     Indenture Act, either directly or by reference therein, have the meanings
     assigned to them therein, and the terms "cash transaction" and "self-
                                              ----------------       ----
     liquidating paper," as used in Section 311 of the Trust Indenture Act,
     -----------------                                                     
     shall have the meanings assigned to them in the rules of the Commission
     adopted under the Trust Indenture Act;

                                       1
<PAGE>
 
          (3)  all accounting terms not otherwise defined herein have the
     meanings assigned to them in accordance with GAAP (as herein defined); 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" has the meaning specified in Section 104(a).
      ---                                              

     "Additional Amounts" means any additional amounts which are required by a
      ------------------                                                      
Security, under circumstances specified therein, to be paid by the Company in
respect of certain taxes imposed on certain Holders and which are owing to such
Holders.

     "Affiliate" when used with respect to any Person, means any other Person
      ---------                                                              
directly or indirectly controlling or controlled by or under direct or indirect
common control with such 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 authenticating agent appointed by the
      --------------------                                                 
Trustee pursuant to Section 611.

     "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 a Security which is payable to bearer.
      ---------------                                              

     "Board of Directors" means the board of directors of the Company, the
      ------------------                                                  
executive committee or any other committee of such board duly authorized to act
for it in respect hereof.

     "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 

                                       2
<PAGE>
 
respect to any Securities pursuant to Section 301, any day, other than a
Saturday or Sunday, which is neither a legal holiday nor a day on which banking
institutions in such Place of Payment or particular location are authorized or
required by law, regulation or executive order to close.

     "Capital Stock" means (i) in the case of a corporation, corporate stock,
      -------------                                                          
(ii) in the case of an association or business entity, any and all shares,
interests, participations, rights or other equivalents (however designated) of
corporate stock, (iii) in the case of a partnership, partnership interests
(whether general or limited) and (iv) any other interest or participation which
confers on a Person the right to receive a share of the profits and losses of,
or distributions of assets of, the issuing Person.

     "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 Exchange Act, 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 Depositary" has the meaning specified in Section 304(b).
      -----------------                                              

     "Common Shares" means the shares of common stock, par value $.01 per share,
      -------------                                                             
of the Company.

     "Company" means the Person named as the "Company" in the first paragraph of
      -------                                                                   
this Indenture until a successor corporation has become such pursuant to the
applicable provisions of this Indenture, and thereafter "Company" shall mean
such successor corporation, and any other obligor on the Securities.

     "Company Certificate" means a certificate signed by the Chairman or a Co-
      -------------------                                                    
Chairman, Managing Director, Senior Vice President or Vice President of the
Company and by the Treasurer, an Assistant Treasurer, the Secretary or an
Assistant Secretary of the Company, and delivered to the Trustee.

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

     "Conversion Event" means the cessation of use of (i) a Foreign Currency
      ----------------                                                      
(other than the ECU or other currency unit) 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 

                                       3
<PAGE>
 
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.

     "Corporate Trust Office" means the office of the Trustee at which, at any
      ----------------------                                                  
particular time, its corporate trust business is principally administered, which
office at the date hereof is located at Two International Place, Corporate Trust
Division, Boston, Massachusetts 02110.

     "corporation" includes corporations, associations, companies, real estate
      -----------                                                             
investment trusts and business trusts.

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

     "covenant defeasance" has the meaning specified in Section 1403.
      -------------------                                            

     "Custodian" has the meaning specified in Section 501.
      ---------                                           

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

     "defeasance" has the meaning specified in Section 1402.
      ----------                                            

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

     "DTC" means The Depository Trust Company.
      ---                                     

     "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 Section 501.
      ----------------                                           

     "Exchange Act" means the Securities Exchange Act of 1934, as amended, and
      ------------                                                            
the rules and regulations promulgated thereunder by the Commission.

                                    4
<PAGE>
 
     "Exchange Date" has the meaning specified in Section 304(b).
      -------------                                              

     "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 generally accepted accounting principles as used in the United
      ----                                                                      
States applied on a consistent basis as in effect from time to time, provided
                                                                     --------
that, solely for purposes of calculating any financial covenants, "GAAP" shall
mean generally accepted accounting principles as used in the United States on
the date hereof, applied on a consistent basis.

     "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 also
includes 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.

     "Hedging Obligations" means, with respect to any Person, the greater of (a)
      -------------------                                                       
the net obligations of such Person under (i) interest rate swap agreements,
interest rate cap agreements and interest rate collar agreements, (ii) foreign
exchange contracts or currency swap agreements and (iii) other agreements or
arrangements designed to protect such Person against fluctuations in interest
rates or currency values or (b) zero.

     "Holder" when used with respect to a Registered Security, means the Person
      ------                                                                   
in whose name such Registered Security is registered in the Security Register
and, when used with respect to a Bearer Security or any coupon, means the bearer
thereof.

     "Indenture" means this instrument as originally executed or as it may from
      ---------                                                                
time to time be supplemented or amended by one or more indentures supplemental
hereto entered into pursuant to the applicable provisions hereof, and includes
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" when used with 

                                       5
<PAGE>
 
respect to any one or more series of Securities with respect to which such
Person is acting as Trustee, shall mean this instrument as originally executed
or as it may from time to time be supplemented or amended by one or more
indentures supplemental hereto entered into pursuant to the applicable
provisions hereof and shall include the terms of those particular series of
Securities with respect to which such Person is acting as Trustee established as
contemplated by Section 301, exclusive, however, of any provisions or terms
which relate solely to other series of Securities with respect to which such
Person is not acting as 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, means interest payable
after Maturity, and, when used with respect to a Security which provides for the
payment of Additional Amounts pursuant to Section 1010, includes such Additional
Amounts.

     "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" means the amount, if any, in addition to principal
      -----------------                                                    
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.

     "mandatory sinking fund payment" has the meaning specified in Section 1201.
      ------------------------------                                            

     "Maturity" when used with respect to any Security, means the date on which
      --------                                                                 
the principal of such Security or an installment of principal become 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, repurchase or otherwise.

     "Notice of Default" has the meaning specified in Section 501.
      -----------------                                           

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

     "optional sinking fund payment" has the meaning specified in Section 1201.
      -----------------------------                                            

                                       6
<PAGE>
 
     "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, exclusive of:

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

          (2)  Securities, or portions thereof, for whose payment or redemption
     or 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 is acting as its own Paying Agent) for the holders of such
     Securities and any coupons appertaining thereto, provided that, if such
                                                      --------              
     Securities are to be redeemed, notice of such redemption has been duly
     given pursuant to this Indenture or other provision therefor satisfactory
     to the Trustee has been made;

          (3)  Securities, except solely to the extent provided in Section 401,
     1402 or 1403, as applicable, with respect to which the Company has effected
     defeasance and/or covenant defeasance as provided in Article Four or
     Fourteen; and

          (4)  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 has 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 required
- --------  -------                                                         
principal amount of the Outstanding Securities have concurred in 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 Section 313 of the Trust Indenture Act, (i)
the principal amount of an Original Issue Discount Security which may be counted
in making such determination or calculation and which shall be deemed
Outstanding for such purpose shall be equal to the amount of principal thereof
which would be (or has 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 which may be counted in making such determination or
calculation and which 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 

                                       7
<PAGE>
 
in clause (i) above) of such Security, (iii) the principal amount of any Indexed
Security which may be counted in making such determination or calculation and
which 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 Indexed Security pursuant to Section
301, and (iv) Securities owned by the Company or any other obligor on the
Securities or any Affiliate of the Company or of such other obligor shall be
disregarded and deemed not Outstanding, except that, for the purposes of
determining whether the Trustee is protected in making such calculation or in
relying on any such request, demand, authorization, direction, notice, consent
or waiver, only Securities which the Trustee knows are so owned shall be so
disregarded. Securities so owned 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 on the Securities or any
Affiliate of the Company or of such other obligor.

     "Paying Agent" means any Person authorized by the Company to pay the
      ------------                                                       
principal of (and premium or Make-Whole Amount, if any, on) and interest and
Additional Amounts, if any, on any Securities or coupons on behalf of the
Company, or if no such Person is authorized, the Company.

     "Payment Default" means any failure to pay any scheduled installment of
      ---------------                                                       
principal of, premium, if any, or interest on any indebtedness within the grace
period provided for such payment in the documentation governing such
indebtedness.

     "Permitted Investments" means:
      ---------------------        

          (1)  Government Obligations;

          (2)  Direct obligations and fully guaranteed certificates of
     beneficial interest of the Export-Import Bank of the United States;
     consolidated debt obligations and letter of credit-backed issues of the
     Federal Home Loan Banks; participation certificates and senior debt
     obligations of the Federal Home Loan Mortgage Corporation; debentures of
     the Federal Housing Administration; mortgage-backed securities (except
     stripped mortgage securities which are valued greater than par on the
     portion of unpaid principal) and senior debt obligations of the Federal
     National Mortgage Association; participation certificates of the General
     Services Administration; guaranteed mortgage-backed securities and
     guaranteed participation certificates and guaranteed pool certificates of
     the Small Business Administration; debt obligations and letter of credit-
     backed issues of the Student Loan Marketing Association; local authority
     bonds of the U.S. Department of Housing and Urban Development; guaranteed
     Title XI financing of the U.S. Maritime Administration; guaranteed transit
     bonds of the Washington Metropolitan Area Transit Authority; or Resolution
     Funding Corporation securities;

          (3)  Direct obligations of any state of the United States of America
     or any subdivision or agency thereof whose unsecured, uninsured and
     unguaranteed general

                                       8
<PAGE>
 
     obligation debt is rated, at the time of purchase, at least as high as the
     rating then in effect on the Securities by Standard & Poor's Rating
     Services, or any obligation fully and unconditionally guaranteed by any
     state, subdivision or agency whose unsecured, uninsured and unguaranteed
     general obligation debt is rated, at the time of purchase, at least as
     high as the rating then in effect on the Securities by Standard & Poor's
     Rating Services;

          (4)  Commercial paper (having original maturities of not more than 270
     days) rated, at the time of purchase, "A-1+" by Standard & Poor's Rating
     Services or "P-1" by Moody's Investors Services, Inc.;

          (5)  Federal funds, unsecured certificates of deposit, time deposits
     or bankers acceptances (in each case having maturities of not more than 365
     days) of any domestic bank (including the Trustee in its commercial
     capacity), including a branch office of a foreign bank which branch office
     is located in the United States, provided that written legal opinions in
                                      --------     
     form acceptable to the Trustee are received to the effect that full and
     timely payment of such deposit or similar obligation is enforceable against
     the principal office or any branch of such bank, which, at the time of
     purchase, has a rating of "A-1+" by Standard & Poor's Rating Services or
     "P-1" by Moody's Investors Services, Inc.;

          (6)  Deposits of any bank or savings and loan association which has
     combined capital, surplus and undivided profits of not less than
     $3,000,000, provided that such deposits are continuously and fully insured
                 --------                                                      
     by the Federal Deposit Insurance Corporation, including, without
     limitation, an insured money market account of the Trustee;

          (7)  Investments in money-market funds rated in the highest rating
     category by Standard & Poor's Rating Services or Moody's Investors
     Services, Inc.; such funds may include those for which the Trustee or an
     affiliate of the Trustee provides services for a fee, whether as investment
     advisor, custodian, transfer agent, sponsor, distributor or otherwise;

          (8)  Shares of an open-end, diversified investment company which is
     registered under the Investment Company Act of 1940, as amended, and which
     (i) invests exclusively in permitted investments of the type set forth in
     clauses (1) through (7) above; (ii) seeks to maintain a constant net asset
     value per share in accordance with regulations of the Commission; and (iii)
     has aggregate net assets of at least $50,000,000 on the date of purchase;
     and

          (9)  Qualified GICs.

Any investment made in accordance with this Indenture may (i) be executed by the
Trustee or the Company with or through the Trustee or its affiliates and (ii) be
made in securities of any entity for which the Trustee or any of its affiliates
serves as offeror, distributor, advisor or other service provider.

                                       9
<PAGE>
 
     "Person" means any individual, corporation, partnership, limited liability
      ------                                                                   
company, joint venture, association, joint-stock company, real estate investment
trust, business 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 Corporate Trust Office of the Trustee and any place or
places which the Company may from time to time designate as the place or places
where the principal of (and premium or Make-Whole Amount, if any, on) and
interest and Additional Amounts, if any, on such Securities are payable as
specified as contemplated by Sections 301 and 1002 and presentations,
surrenders, notices and demands with respect to such Securities and this
Indenture may be made.

     "Predecessor Security" when used with respect to any particular Security,
      --------------------                                                    
means every previous Security evidencing all or a portion of the same debt as
evidenced by such 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.

     "Qualified GIC" means an investment contract providing for the investment
      -------------                                                           
of funds held by the Trustee and insuring a minimum or fixed rate of return on
investments of such funds, which contract shall:

          (1)  be an obligation of an insurance company or bank whose senior
     long-term debt obligations are rated in one of the two highest rating
     categories by both Moody's Investors Services, Inc. and Standard & Poor's
     Rating Services;

          (2)  provide that the Trustee may exercise all of the rights under
     such contract without the necessity of the taking of action by any other
     person;

          (3)  provide that, if at any time the then current credit standing of
     the obligor under such guaranteed investment contract has been lowered or
     withdrawn by Moody's Investors Services, Inc. or Standard & Poor's Rating
     Services, the Trustee may terminate such contract without penalty and be
     entitled to the return of all funds previously invested thereunder,
     together with accrued interest thereon at the interest rate provided under
     such contract through the date of delivery of such funds to the Trustee;

          (4)  provide that interest shall be payable not less than annually;

          (5)  provide that the Trustee may withdraw funds invested without
     penalty at any time and from time to time to be applied for the purposes
     described therein;

                                      10
<PAGE>
 
          (6)  be accompanied by an enforceability opinion from counsel to the
     obligor under such guaranteed investment contract in form and substance
     satisfactory to the Trustee; and

          (7)  provide that the Trustee's interest thereunder shall be
     transferable to any successor Trustee hereunder.

     "Redemption Date" when used with respect to any Security to be redeemed,
      ---------------                                                        
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 at which it is to be redeemed pursuant to this Indenture.

     "Registered Security" means any Security which is registered in the
      -------------------                                               
Security Register.

     "Regular Record Date" when used with respect to an installment of 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" when used with respect to any Security to be repaid or
      --------------                                                        
repurchased at the option of the Holder, means the date fixed for such repayment
or repurchase by or pursuant to this Indenture.

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

     "Required Filing Dates" has the meaning specified in Section 1008.
      ---------------------                                            

     "Responsible Officer" when used with respect to the Trustee, means any vice
      -------------------                                                       
president (whether or not designated by numbers or words added before or after
said title), any assistant vice president, any assistant secretary or any other
officer or assistant officer of the Trustee in the corporate trust department or
similar group of the Trustee or, with respect to any particular matter arising
hereunder, any officer of the Trustee to whom such matter has been assigned.

     "Securities Act" means the Securities Act of 1933, as amended, and the
      --------------                                                       
rules and regulations promulgated thereunder by the Commission.

     "Security" has the meaning specified 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" when
used with respect to the Indenture with respect to which such Person is acting
as 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, 

                                      11
<PAGE>
 
exclusive, however, of Securities of or within any series with respect to which
such Person is not acting as Trustee.

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

     "Significant Subsidiary" means a Subsidiary which otherwise meets the tests
      ----------------------                                                    
ascribed to the term in Regulation S-X promulgated by the Commission under the
Securities Act, except that the tests therein shall be based on 20% of total
assets or income instead of 10%, unless the Company owns or controls, directly
or indirectly, at least 75% of the total voting power of such Subsidiary's
shares of Capital Stock entitled (without regard to the occurrence of any
contingency) to vote in the election of directors, managers or trustees thereof
(such percentage to be calculated on a fully diluted basis), in which case the
tests shall be based on 10% of total assets or income.

     "Special Record Date" when used with respect to the payment of any
      -------------------                                              
Defaulted Interest on the Registered Securities of or within any series, means a
date fixed by the Trustee pursuant to Section 307.

     "Stated Maturity" when used with respect to any Security or any installment
      ---------------                                                           
of principal thereof or interest thereon or any Additional Amounts with respect
thereto, 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, or such Additional
Amounts are, due and payable.

     "Subsidiary" means, with respect to any Person, (i) any corporation,
      ----------                                                         
association or other business entity of which more than 50% of the total equity
capital and more than 50% of the total voting power of shares of Capital Stock
entitled (without regard to the occurrence of any contingency) to vote in the
election of directors, managers or trustees thereof is at the time owned or
controlled, directly or indirectly, by such Person or one or more of the other
Subsidiaries of that Person (or a combination thereof) and (ii) any partnership
(a) the sole general partner or the managing general partner of which is such
Person or a Subsidiary of such Person or (b) the only general partners of which
are such Person or one or more Subsidiaries of such Person (or any combination
thereof).

     "Trust Indenture Act" 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.

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

                                      12
<PAGE>
 
Trustee with respect to the Securities of such series, and no Trustee of
Securities for any series shall be responsible for the acts or omissions of a
Trustee for any other series of Securities.

     "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 a Company Certificate
stating that all conditions precedent, if any, provided for in this Indenture
(including any covenants, compliance with which constitute conditions precedent)
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 (other than certificates provided
pursuant to Section 1009) 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 on which the statements or opinions contained in such
     certificate or opinion are based;

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

                                      13
<PAGE>
 
          (4)  a statement as to whether or not, 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 in which
                  --------------------------------------                      
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 as 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, on 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 on which his or her 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, on 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 that the certificate or
opinion or representations as to such matters are erroneous.

     If 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 the Outstanding Securities of
     such series may, alternatively, be embodied in and evidenced by the record
     of such Holders voting in favor thereof, either in person or by proxies
     duly appointed in writing, at any meeting of such Holders 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 and, if
     expressly required herein, to the Company. Such instrument or instrument
     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

                                      14
<PAGE>
 
     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 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 or her the execution thereof or by any other means
     acceptable to the Trustee. If 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.

          (d)  The ownership of Bearer Securities may be proved by the
     production of such Bearer Securities or by a certificate executed, as
     depositary, by any trust company, bank, banker or other depositary,
     wherever situated, if such certificate is deemed by the Trustee to be
     satisfactory, showing that at the date therein mentioned such Person had on
     deposit with such depositary, 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 (i) another certificate or affidavit bearing a later date issued in
     respect of the same Bearer Security is produced, (ii) such Bearer Security
     is produced to the Trustee by some other Person, (iii) such Bearer Security
     is surrendered in exchange for a Registered Security or (iv) 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 not be
     obligated to do so. Notwithstanding Section 316(c) of the Trust Indenture
     Act, 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, 
<PAGE>
 
     notice, consent, waiver or other Act, but the Company shall not be
     obligated to do so. Notwithstanding Section 316(c) of the Trust Indenture
     Act, 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 purpose
     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 on such Security.

     SECTION 105. Notices 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 on, given or
furnished to, or filed with:

          (1)  the Trustee by any Holder or the Company shall be sufficient for
     every purpose hereunder if in writing and mailed, first class postage
     prepaid, to the Trustee addressed to it at the address of its Corporate
     Trust Office specified in the first paragraph of this Indenture, Attention:
     Corporate Trust Administration; or

          (2)  the Company by the Trustee or 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.

     SECTION 106. Notice to Holders; Waiver. When 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 such Holder's address as it appears
in the Security Register, not later than the latest date, and not earlier than
the earliest date, prescribed for the giving of such notice. In any case in
which 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 

                                       16
<PAGE>
 
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 is impracticable to give such notice
by mail, then such notification to Holders of Registered Securities as is 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, when this Indenture provides
for notice to Holders of Bearer Securities of any event, such notices 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
and, if the Securities of such series are listed on any securities exchange
outside the United States, in any place at which such Securities are listed on a
securities exchange to the extent that such securities exchange so requires, on
a Business Day, such publication to be not later than the latest date, and not
earlier than the earliest date, 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 is impracticable to
publish any notice to Holders of Bearer Securities as provided above, then such
notification to Holders of Bearer Securities as is 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.

     When 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 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 on such waiver.

     SECTION 107. Effect of Headings and Table of Contents. The Article and
                  ----------------------------------------                 
Section headings herein and the Table of Contents are for convenience only and
shall not affect the construction hereof.

                                       17
<PAGE>
 
     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. Separability Clause. In case any provision in this Indenture
                  -------------------                                         
or in any Security or any coupon shall be 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 any
                  ---------------------                                     
Security or any coupon, 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. No Personal Liability. No recourse under or on any obligation,
                  ---------------------                                         
covenant or agreement contained in this Indenture or in any Security or any
coupon, or because of any indebtedness evidenced thereby, shall be had against
any promoter, as such or, against any past, present or future director, officer,
employee or shareholder, 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 thereof
and as part of the consideration for the issue of the Securities.

     SECTION 112. Governing Law. THIS INDENTURE AND THE SECURITIES AND ANY
                  -------------                                           
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 TRUST
INDENTURE ACT WHICH, BY THE PROVISIONS THEREOF, ARE DEEMED OR REQUIRED TO BE
PART OF THIS INDENTURE AND SHALL, TO THE EXTENT APPLICABLE, BE GOVERNED BY SUCH
PROVISIONS. IF ANY PROVISION OF THIS INDENTURE LIMITS, QUALIFIES OR CONFLICTS
WITH THE DUTIES IMPOSED BY OPERATION OF SECTION 318(C) OF THE TRUST INDENTURE
ACT, THE IMPOSED DUTIES SHALL CONTROL.

     SECTION 113. Legal Holidays. In any case in which any Interest Payment
                  --------------                                           
Date, Redemption Date, Repayment Date, sinking fund payment date, Stated
Maturity or Maturity of any Security is not a Business Day at any Place of
Payment, then (notwithstanding any other provision of this Indenture or any
Security or any coupon other than a provision in the Securities of any series
which specifically states that such provision shall apply in lieu hereof),
payment of the principal of (and premium or Make-Whole Amount, if any, on) or
interest or Additional Amounts, if any, on such Security need not be made at
such Place of Payment on such date, but 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; provided, however, 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.

                                       18
<PAGE>
 
     SECTION 114. Counterparts. This Indenture may be executed in several
                  ------------                                           
counterparts, each of which shall be an original and all of which shall
constitute but one and the same instrument.

                                 ARTICLE TWO
                                 SECURITIES FORMS

     SECTION 201. Forms of Securities. The Registered Securities, if any, of
                  -------------------                                       
each series and the Bearer Securities, if any, and any coupons of each series,
shall be in substantially the forms as are established in or pursuant to one or
more indentures supplemental hereto or Board Resolutions, 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 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.

     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.


                                   STATE STREET BANK AND TRUST
                                     COMPANY,
                                   as Trustee


                                   By:___________________________________
                                        Authorized Officer

     SECTION 203. Securities Issuable in Global Form. If Securities of or within
                  ----------------------------------                            
a series are issuable in global form, as specified as contemplated by Section
301, then, notwithstanding clause (8) of Section 301 and the provisions of
Section 302, any such Security shall represent

                                       19
<PAGE>
 
such of the Outstanding Securities of such series as are specified therein and
may provide that it shall represent the aggregate amount of Outstanding
Securities of such series from time to time endorsed thereon and 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 a Security in global form to reflect the amount, or any increase
or decrease in the amount, of Outstanding Securities represented thereby shall
be made by the Trustee in the manner and in accordance with instructions given
by such Person or Persons 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 Security in permanent global form in the manner and in
accordance with 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 Security in global
form 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 Security in global form if such Security was never
issued and sold by the Company and the Company delivers to the Trustee the
Security in global form 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 premium or Make-
Whole Amount, if any, on) and interest and Additional Amounts, if any, on any
Security in permanent global form shall be made to the Person or Persons
specified therein.

     Notwithstanding the provisions of Section 308 and except as provided in the
preceding paragraph, the Company, the Trustee and any agent of the Company or
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.

                                 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 or pursuant to one or more Board Resolutions, or indentures
supplemental hereto, prior to the issuance of Securities of any series, any or
all of the following, as applicable (each of which 

                                       20
<PAGE>
 
(except for the matters set forth in clauses (1), (2) and (15) below), if so
provided, may be determined from time to time by the Company with respect to
unissued Securities of or within the series when issued from time to time):

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

          (2)  any limit on the aggregate principal amount of the Securities of
     or within the series which may be authenticated and delivered under this
     Indenture (except for Securities authenticated and delivered upon
     registration of transfer of, or in exchange for, or in lieu of, other
     Securities of or within the series pursuant to Section 304, 305, 306, 906,
     1107 or 1305);

          (3)  the date or dates, or the method by which such date or dates will
     be determined, on which the principal of the Securities of or within the
     series shall be payable and the amount of principal payable thereon;

          (4)  the rate or rates at which the Securities of or within the series
     shall bear interest, if any, or the method by which such rate or rates
     shall be determined, the date or dates from which such interest shall
     accrue or the method by which such date or dates shall be determined, the
     Interest Payment Dates on which such interest will be payable and the
     Regular Record Date, if any, for the interest payable on any Registered
     Security on any Interest Payment Date, or the method by which such date
     shall be determined, and the basis on which interest shall be calculated if
     other than a 360-day year comprised of twelve 30-day months;

          (5)  the place or places, if any, other than or in addition to the
     Corporate Trust Office where the principal of (and premium or Make-Whole
     Amount, if any, on) and interest and Additional Amounts, if any, on
     Securities of or within the series shall be payable, any Registered
     Securities of or within the series may be surrendered for registration of
     transfer, exchange or conversion and notices or demands to or on the
     Company in respect of the Securities of or within the series and this
     Indenture may be served;

          (6)  the period or periods within which, the price or prices
     (including the premium or Make-Whole Amount, if any) at which, the currency
     or currencies, currency unit or units or composite currency or currencies
     in which, and other terms and conditions upon which Securities of or within
     the series may be redeemed, in whole or in part, at the option of the
     Company, if the Company is to have the option;

          (7)  the obligation, if any, of the Company to redeem, repay or
     purchase Securities of or within the series pursuant to any sinking fund or
     analogous provision or at the option of a Holder thereof, and the period or
     periods within which or the date or dates on which, the price or prices at
     which, the currency or currencies, currency unit 

                                       21
<PAGE>
 
     or units or composite currency or currencies in which, and other terms and
     conditions upon which Securities of or within the series shall be redeemed,
     repaid or purchased, in whole or in part, pursuant to such obligation;

          (8)  if other than denominations of $1,000 and any integral multiple
     thereof, the denominations in which any Registered Securities of or within
     the series shall be issuable and, if other than the denomination of $5,000,
     the denomination or denominations in which any Bearer Securities of or
     within the series shall be issuable;

          (9)  if other than the Trustee, the identity of each Security
     Registrar and/or Paying Agent;

          (10) the percentage of the principal amount at which Securities will
     be issued and, if other than the principal amount thereof, the portion of
     the principal amount of Securities of or within the series which shall be
     payable upon declaration of acceleration of the Maturity thereof pursuant
     to Section 502, or, if applicable, the portion of the principal amount of
     Securities which is convertible in accordance with the provisions of this
     Indenture, or the method by which such portion shall be determined;

          (11) if other than Dollars, the Foreign Currency or Currencies in
     which payment of the principal of (and premium or Make-Whole Amount, if
     any, on) or interest or Additional Amounts, if any, on the Securities of or
     within the series shall be payable or in which the Securities of or within
     the series shall be denominated;

          (12) whether the amount of payments of the principal of (and premium
     or Make-Whole Amount, if any, on) or interest or Additional Amounts, if
     any, on the Securities of or within the series may be determined with
     reference to an index, formula or other method (which index, formula or
     method may be based, without limitation, on one or more currencies,
     currency units, composite currencies, commodities, equity indices or other
     indices), and the manner in which such amounts shall be determined;

          (13) whether the principal of (and premium or Make-Whole Amount, if
     any, on) or interest or Additional Amounts, if any, on the Securities of or
     within 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
     (including the Election Date), 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;

                                       22
<PAGE>
 
          (14) provisions, if any, granting special rights to the Holders of
     Securities of or within the series on 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 or
     within 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 Securities of or within 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 or within the
     series may be exchanged for Registered Securities of or within the series
     and vice versa (if permitted by applicable laws and regulations), whether
     any Securities of or within the series are to be issuable initially in
     temporary global form and whether any Securities of or within 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 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 occur, if other than in the manner
     provided in Section 305, and, if Registered Securities of or within the
     series are to be issuable as a global Security, the identity of the
     depositary for such series, and the date as of which any Bearer Securities
     of or within the series and any temporary global Security representing
     Outstanding Securities of or within the series shall be dated if other than
     the date of original issuance of the first Security of the series to be
     issued;

          (17) the Person to whom any interest on any Registered Security of the
     series shall be payable, if other than the Person in whose name such
     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 in Section 304;

          (18) the applicability, if any, of Sections 1402 and/or 1403 to the
     Securities of or within the series and any provisions in modification of,
     in addition to or in lieu of any of the provisions of Article Fourteen;

          (19) 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;

                                       23
<PAGE>
 
          (20) if the Securities of or within the series are to be issued upon
     the exercise of debt warrants, the time, manner and place for such
     Securities to be authenticated and delivered;

          (21) whether and under what circumstances the Company will pay
     Additional Amounts as contemplated by Section 1010 on the Securities of or
     within the series to any Holder who is not a United States person
     (including any modification to the definition of such term) in respect of
     any tax, assessment or governmental charge and, if so, whether the Company
     will have the option to redeem such Securities rather than pay such
     Additional Amounts (and the terms of any such option);

          (22) the obligation, if any, of the Company to permit the conversion
     of the Securities of such series into Common Shares or other securities of
     the Company, and the terms and conditions on which such conversion shall be
     effected (including, without limitation, the initial conversion price or
     rate, the conversion period, any adjustment of the applicable conversion
     price and any requirements relative to the reservation of such shares for
     purposes of conversion; and

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

     All Securities of any one series and the coupons appertaining to any Bearer
Securities of such series, if any, shall be substantially identical except, in
the case of Registered or Bearer Securities issued in global form, as to
denomination and except as may otherwise be provided in or pursuant to such
Board Resolution 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 or supplemental
indentures, 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 Company Order for authentication and
delivery of such Securities.

     SECTION 302. Denominations. The Securities of each series shall be issuable
                  -------------                                                 
as Bearer Securities, as Registered Securities or in any combination thereof,
and in such denominations and amounts as are specified as contemplated by
Section 301. With respect to any series denominated in Dollars, in the absence
of any such provisions with respect to the Securities of any series, the
Registered Securities of such series, other than Registered Securities issued in
global form (which may be of any denomination), shall be issuable in
denominations of $1,000 and any integral multiple thereof and the Bearer
Securities of such series, other than Bearer Securities issued in global form
(which may be of any denomination), shall be issuable in denominations of
$5,000.

                                       24
<PAGE>
 
     SECTION 303. Execution, Authentication, Delivery and Dating. The Securities
                  ----------------------------------------------                
and any coupons shall be executed on behalf of the Company by the Chairman or a
Co-Chairman, Managing Director, Senior Vice President, Vice President or the
Treasurer of the Company, under the Company's corporate seal reproduced thereon,
and attested by the Company's Secretary or one of its Assistant Secretaries. The
signature of any of these officers on the Securities and any 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 and such
coupons.

     Any Securities or any 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 any 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
coupons, executed by the Company, to the Trustee for authentication, together
with a Company Order for the authentication and delivery of such Securities, and
the Trustee shall authenticate and deliver such Securities in accordance with
the Company Order; 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 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 received such Bearer Security has furnished a
certificate to Euroclear or CEDEL, as the case may be, in the form set forth in
Exhibit A-1 to this Indenture or such other certificate as may be specified 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.

     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 of the Securities of any series
are not to be issued at one time and if the Board Resolution or supplemental
indenture establishing such series so permits, 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 the
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 and any
coupons appertaining thereto, the Trustee shall be entitled to receive, and
(subject to Section 315(a) through 315(d) of the Trust Indenture Act) shall be
fully protected in relying on:

                                       25
<PAGE>
 
          (1) an Opinion of Counsel complying with Section 102 and stating that:

              (A)   the form or forms of such Securities and any coupons
          appertaining thereto have been, or will have been upon compliance with
          such procedures as may be specified therein, established in conformity
          with the provisions of this Indenture;

               (B)  the terms of such Securities and any coupons appertaining
          thereto have been, or will have been upon compliance with such
          procedures as may be specified therein, established in conformity with
          the provisions of this Indenture; and

               (C)  such Securities, together with any coupons appertaining
          thereto, when executed by the Company, completed pursuant to such
          procedures as may be specified therein 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 binding obligations of the Company, enforceable in
          accordance with their terms, subject to applicable bankruptcy,
          insolvency, reorganization and other similar laws of general
          applicability relating to or affecting the enforcement of creditors'
          rights generally and to general equitable principles and to such other
          matters as may be specified therein; and

          (2)  a Company Certificate complying with Section 102 and stating that
     all conditions precedent provided for in this Indenture relating to the
     issuance of such Securities have been, or will have been upon compliance
     with such procedures as may be specified therein, complied with and that,
     to the best of the knowledge of the signers of such certificate, no Event
     of Default with respect to such Securities has occurred and is continuing.

The Trustee shall not be required to authenticate such Securities 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 a Company Order, an Opinion of Counsel or a
Company Certificate otherwise required pursuant to the preceding paragraph at
the time of issuance of each Security of such series, but such order, opinion
and certificate 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.

                                       26
<PAGE>
 
     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 the Security to which such coupon appertains a certificate of authentication
substantially in the form provided for herein duly executed by the Trustee by
manual signature of an authorized officer, and such certificate on 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 has been
authenticated and delivered hereunder but never issued and sold by the Company,
and the Company delivers 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 or 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.

     SECTION 304. Temporary Securities.
                  -------------------- 

          (a)  Pending the preparation of definitive Securities of any series,
     the Company may execute, and upon a 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 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 Securities in global form (which shall
     be exchanged in accordance with Section 304(b) or as otherwise provided in
     or pursuant to a Board Resolution), if temporary Securities of any series
     are issued, the Company shall cause definitive Securities of such 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 such series, without charge to the Holder. Upon
     surrender for cancellation of any one or more temporary Securities of any
     series, together with 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 

                                       27
<PAGE>
 
     exchange for a temporary Bearer Security only in compliance with the
     conditions set forth in Section 303. Until so exchanged, the temporary
     Securities or coupons appertaining thereto of any series shall in all
     respects be entitled to the same benefits under this Indenture as
     definitive Securities or coupons appertaining thereto of such series.

          (b)  Unless otherwise provided as contemplated in Section 301, this
     Section 304(b) shall govern the exchange of temporary Securities issued in
     global form other than through the facilities of DTC. 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 depositary or common depositary (the "Common Depositary"), for the
                                                -----------------           
     benefit of Euroclear and CEDEL.

          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 an aggregate principal 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 Depositary 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 the name of Euroclear or CEDEL, as the
     case may be, in exchange for each portion of such temporary global 
     Security, an equal aggregate principal amount of definitive Securities
     of or within 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 anysuch 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 Common Depository;
     provided, however, that, unless otherwise specified in such temporary 
     --------  -------                                          
     global Security, upon such presentation by the Common Depositary, 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 

                                       28
<PAGE>
 
     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 A-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 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 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 A-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 in Exhibit A-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 has 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.

                                       29
<PAGE>
 
     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 ceases to be Security Registrar, it shall have the right to examine 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 such 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 Securities
of the same series, of any authorized denominations and of a like aggregate
principal amount, being 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 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 appertaining thereto. 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 Bearer Security surrenders to any Paying Agent any such missing
coupon in 

                                       30
<PAGE>
 
respect of which such a payment has been made, such Holder shall be entitled to
receive the amount of payment; provided, however, that, except as otherwise
                               --------  -------
provided in Section 1002, interest represented by a coupon shall be payable only
upon presentation and surrender of such 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
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 depositary for any permanent global
Security is 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 and 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 depositary for the applicable global Security
or Securities or if at any time DTC ceases to be a clearing agency registered
under the Exchange Act if so required by applicable law or regulation, the
Company shall appoint a successor depositary with respect to such global
Security or Securities. If (i) a successor depositary 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, (ii) 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 depositary for such global Security or Securities or
(iii) the Company, in its sole discretion, determines at any time that all
Outstanding Securities (but not less than all) Securities 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 (provided, however, that the
                                                   --------  -------          
Company may not make such determination during the 40-day restricted period
provided by Regulation S under the Securities Act or during any other similar
period during which the Securities must be held in global form as may be
required by the Securities Act), then, upon surrender of the global Security or
Securities appropriately endorsed, 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 

                                       31
<PAGE>
 
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 has been given, then
without unnecessary delay but in any event not earlier than the earliest date on
which such interest may be so exchanged, upon surrender of the global Security
or Securities appropriately endorsed, 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 depositary as is 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 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 before 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 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 which 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.

                                       32
<PAGE>
 
     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 day of 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 such series
and like tenor, provided that such Registered Security is simultaneously
                --------                                                
surrendered for redemption, or (iv) to issue, register the transfer of or
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 thereto 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 of their agents 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 is delivered to the Company and 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 of their agents 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 Company 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

                                       33
<PAGE>
 
coupon; provided, however, that payment of principal of (and premium or Make-
        --------  -------                                                   
Whole Amount, if any, on) and interest and Additional Amounts, if any, on any
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 which may be imposed in relation thereto and any other expenses
(including the fees and expenses of the Trustee) connected therewith.

     Every new Security of any series and any coupons appertaining thereto
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 any coupons appertaining thereto or the destroyed, lost or stolen coupon are
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
such series and any coupons appertaining thereto 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 which is
payable, and is punctually paid or duly provided for, on any Interest Payment
Date shall be paid to the Person in whose name such 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 

                                       34
<PAGE>
 
permanent global Security held for its account by Cede & Co. or the Common
Depositary, 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.

     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 which is payable, but is not punctually paid or duly
provided for, on any Interest Payment Date ("Defaulted Interest") shall
                                             ------------------        
forthwith cease to be payable to the registered Holder thereof upon 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, as provided in paragraph
(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 provided in this paragraph. 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
     such Holder's 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 

                                       35
<PAGE>
 
     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 paragraph
     (2) below. 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 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 on 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 paragraph, such manner of payment is
     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,
on) and (subject to Sections 305 and 307) interest and Additional Amounts, if
any, 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.

     Title to any Bearer Security and any coupons 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 

                                       36
<PAGE>
 
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.

     None of the Company, the Trustee, any Paying Agent or the Security
Registrar shall have any responsibility or liability for any aspect of the
records relating to or payments made on account of beneficial ownership
interests of a Security in global form 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 depositary, as a Holder, with respect to such
global Security or impair, as between such depositary and owners of beneficial
interests in such global Security, the operation of customary practices
governing the exercise of the rights of such depositary (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 any Securities and coupons surrendered
directly to the Trustee for any such purpose shall be promptly canceled 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 canceled by the Trustee. If
the Company so acquires 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 canceled as provided in this Section, except as expressly
permitted by this Indenture. Canceled 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 Company delivers a Company Order
which directs their return to it.

     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 

                                       37
<PAGE>
 
exchange of Securities of such series herein expressly provided for and any
right to receive Additional Amounts, as provided in Section 1010), and the
Trustee, upon receipt of a Company Order and at the expense of the Company,
shall execute proper instruments acknowledging satisfaction and discharge of
this Indenture as to such series when:

     (1)  either:

               (A)  all Securities of such series theretofore authenticated and
          delivered and any coupons appertaining thereto (other than (i) coupons
          appertaining to Bearer Securities surrendered for exchange for
          Registered Securities and maturing after such exchange, whose
          surrender is not required or has been waived as provided in Section
          305, (ii) Securities of such series and coupons appertaining thereto
          which have been destroyed, lost or stolen and which have been replaced
          or paid as provided in Section 306, (iii) coupons appertaining to
          Securities called for redemption and maturing after the relevant
          Redemption Date, whose surrender has been waived as provided in
          Section 1106, and (iv) Securities of such series and coupons
          appertaining thereto for whose payment money has theretofore been
          deposited in trust or segregated and held in trust by the Company and
          thereafter repaid to the Company or discharged from such trust, as
          provided in Section 1003) have been delivered to the Trustee for
          cancellation; or

               (B)  all Securities of such series and, in the case of clauses
          (i) and (ii) below, any coupons appertaining thereto not theretofore
          delivered to the Trustee for cancellation:

                    (i)   have become due and payable, or

                    (ii)  will become due and payable at their Stated Maturity
               within one year, or

                    (iii) if redeemable at the option of the Company, are to be
               called for redemption within one year under arrangements
               satisfactory to the Trustee for the giving of notice of
               redemption by the Trustee in the name, and at the expense, of the
               Company,

          and the Company, in the case of clause (i), (ii) or (iii) above, has
          irrevocably deposited or caused to be deposited with the Trustee funds
          in trust for the purpose, in the currency or currencies, currency unit
          or units or composite currency or currencies in which the Securities
          of such series are payable, and in an amount sufficient to pay and
          discharge the entire indebtedness on such Securities and such coupons
          not theretofore delivered to the Trustee for cancellation, for the
          principal (and premium or Make-Whole Amount, if any) and interest and
          Additional Amounts, if any, to the date of such deposit (in the case

                                       38
<PAGE>
 
          of Securities which have become due and payable) or the Stated
          Maturity or Redemption Date, as the case may be;

          (2)  The Company has paid or caused to be paid all other sums payable
     hereunder by the Company; and

          (3)  The Company has delivered to the Trustee a Company Certificate
     and an Opinion of Counsel, each stating that all conditions precedent
     herein provided for relating to the satisfaction and discharge of this
     Indenture as to such series have been complied with.

Notwithstanding the satisfaction and discharge of this Indenture, the
obligations of the Company to the Trustee and any predecessor Trustee under
Section 606, the obligations of the Company to any Authenticating Agent under
Section 611 and, if money has been deposited with and held by the Trustee
pursuant to subparagraph (B) of paragraph (1) of this Section, the obligations
of the Trustee under Section 402 and the last paragraph of Section 1003, shall
survive.

     SECTION 402. Application of Trust Funds. Subject to the provisions of the
                  --------------------------                                  
last paragraph of Section 1003, all money deposited with the Trustee pursuant to
Section 401 shall be held in trust and applied by it, in accordance with the
provisions of the Securities, the coupons and this Indenture, to the payment,
either directly or through any Paying Agent (including the Company acting as its
own Paying Agent) as the Trustee may determine, to the Persons entitled thereto,
of the principal (and premium or Make-Whole Amount, if any) and interest and
Additional Amounts, if any, for the payment of which such money has been
deposited with or received by the Trustee, but such money need not be segregated
from other funds except to the extent required by law.

                                 ARTICLE FIVE
                                   REMEDIES

     SECTION 501. Events of Default. Subject to any modifications, additions or
                  -----------------                                            
deletions relating to any series of Securities as contemplated pursuant to
Section 301, "Event of Default," whenever used herein with respect to any
              ----------------                                           
particular series of Securities, means any one of the following events (whatever
the reason for such Event of Default and whether or not it is voluntary or
involuntary or effected by operation of law or pursuant to any judgment, decree
or order of any court or any order, rule or regulation of any administrative or
governmental body):

          (1)  default in the payment of any interest on or any Additional
     Amounts payable in respect of any Security of or within such series or of
     any coupon appertaining thereto, when such interest, Additional Amounts or
     coupon becomes due and payable, and continuance of such default for a
     period of 30 days; or

                                       39
<PAGE>
 
          (2)  default in the payment of the principal of (or premium or Make-
     Whole Amount, if any, on) any Security of such series when due and payable
     at its Maturity; or

          (3)  default in the deposit of any sinking fund payment, when and as
     due by the terms of any Security of such series; or

          (4)  default in the performance, or breach, of any covenant or
     warranty of the Company in this Indenture with respect to any Security of
     such series (other than a covenant or warranty a default in the performance
     of which or the breach of which is elsewhere specifically provided for in
     this Section), and continuance of such default or breach for a period of 60
     days after there has been given, by registered or certified mail, to the
     Company by the Trustee or to the Company and the Trustee by the Holders of
     at least 25% in principal amount of the Outstanding Securities of such
     series, a written notice specifying such default or breach and requiring it
     to be remedied and stating that such notice is a "Notice of Default"
                                                       -----------------     
     hereunder; or

          (5)  default under any bond, debenture, note or other evidence of
     indebtedness of the Company or under any mortgage, indenture or other
     instrument of the Company (including a default with respect to Securities
     of any series other than such series) under which there may be issued or by
     which there may be secured any indebtedness of the Company (or by any
     Significant Subsidiary, the repayment of which the Company has guaranteed
     or for which the Company is directly responsible or liable as obligor or
     guarantor), whether such indebtedness now exists or is hereafter created,
     which, after the termination of any applicable grace or cure period, (a)
     constitutes a Payment Default or (b) results in the acceleration of such
     indebtedness prior to its express maturity and, in each case, the principal
     amount of any indebtedness, together with the principal amount of any other
     such indebtedness under which there has been a Payment Default or which has
     been so accelerated, aggregates $25,000,000 or more; provided that, in
     calculating the aggregate principal amount of any such indebtedness, the
     Hedging Obligations of any Person under which there has been a Payment
     Default or which has been so accelerated shall not be netted against any
     other Hedging Obligation of such Person, within a period of 10 days after
     there has been given, by registered or certified mail, to the Company by
     the Trustee or to the Company and the Trustee by the Holders of at least
     10% in principal amount of the Outstanding Securities of such series a
     written notice specifying such default and requiring the Company to cause
     such indebtedness to be discharged or cause such acceleration to be
     rescinded or annulled and stating that such notice is a "Notice of Default"
                                                              -----------------
     hereunder; or


          (6)  the entry by a court of competent jurisdiction of one or more
     final judgments, orders or decrees against the Company or any Significant
     Subsidiary of the Company in an aggregate amount (excluding amounts covered
     by insurance) in excess of $25,000,000 and such judgments, orders or
     decrees remain undischarged, unstayed 

                                       40
<PAGE>
 
     and unsatisfied in an aggregate amount (excluding amounts covered by
     insurance) in excess of $25,000,000 for a period of 60 consecutive days; or

          (7)  the Company or any Significant Subsidiary of the Company pursuant
     to or within the meaning of any Bankruptcy Law:

               (A)  commences a voluntary case,

               (B)  consents to the entry of an order for relief against it in
          an involuntary case,

               (C)  consents to the appointment of a Custodian of it or for all
          or substantially all of its property, or

               (D)  makes a general assignment for the benefit of its creditors;
          or

          (8)  a court of competent jurisdiction enters an order or decree under
     any Bankruptcy Law that:

               (A)  is for relief against the Company or any Significant
          Subsidiary of the Company in an involuntary case,

               (B)  appoints a Custodian of the Company or any Significant
          Subsidiary of the Company or for all or substantially all of its
          property, or

               (C)  orders the liquidation of the Company or any Significant
          Subsidiary of the Company,

     and the order or decree remains unstayed and in effect for 90 days; or

          (9)  any other Event of Default provided with respect to Securities of
     such series.

As used in this Section 501, the term "Bankruptcy Law" means Title 11, U.S. Code
                                       --------------                           
or any similar Federal or state law for the relief of debtors and the term
"Custodian" means any receiver, trustee, assignee, liquidator or other similar
- ----------                                                                    
official under any Bankruptcy Law.

     SECTION 502. Acceleration of Maturity; Rescission and Annulment. If an
                  --------------------------------------------------       
Event of Default (other than an Event of Default set forth in Section 501(7) or
(8)) with respect to Securities of any series at the time Outstanding occurs and
is continuing, then and in every such case, unless the principal of all of the
Outstanding Securities of such series already has become due and payable, the
Trustee or the Holders of not less than 25% in principal amount of the
Outstanding Securities of such series may declare the principal (or, if any
Securities are Original Issue Discount Securities or Indexed Securities, such
portion of the principal as may be specified 

                                       41
<PAGE>
 
in the terms thereof) of, and the Make-Whole Amount, if any, on, all the
Securities of such series to be due and payable immediately, by a notice in
writing to the Company (and to the Trustee if given by the Holders), and upon
any such declaration such principal or specified portion thereof shall become
immediately due and payable. If an Event of Default set forth in Section 501(7)
or (8) occurs and is continuing with respect to the Securities of any series,
then in each such case, the principal of, and the Make-Whole Amount, if any, on,
all the Securities of such series shall be due and payable immediately, without
notice to the Company.

     At any time after such a declaration of acceleration with respect to
Securities of any series has been made and before a judgment or decree for
payment of the money due has been obtained by the Trustee as hereinafter
provided in this Article, the Holders of a majority in principal amount of the
Outstanding Securities of such series, by written notice to the Company and the
Trustee, may rescind and annul such declaration and its consequences if:

          (1)  The Company has paid or deposited with the Trustee a sum
     sufficient to pay, in the currency, currency unit or composite currency in
     which the Securities of such series are payable (except as otherwise
     specified pursuant to Section 301 for the Securities of such series):

               (A)  all overdue installments of interest on and any Additional
          Amounts payable in respect of all Outstanding Securities of such
          series and any coupons appertaining thereto;

               (B)  the principal of (and premium or Make-Whole Amount, if any,
          on) any Outstanding Securities of such series which have become due
          otherwise than by such declaration of acceleration and interest
          thereon at the rate or rates borne by or provided for in such
          Securities;

               (C)  to the extent that payment of such interest is lawful,
          interest on overdue installments of interest and any Additional
          Amounts at the rate or rates borne by or provided for in such
          Securities; and

               (D)  all sums paid or advanced by the Trustee hereunder and the
          reasonable compensation, expenses, disbursements and advances of the
          Trustee, its agents and counsel; and

          (2)  all Events of Default with respect to Securities of such series,
     other than the nonpayment of the principal of (or premium or Make-Whole
     Amount, if any, on) or interest or Additional Amounts, if any, on
     Securities of such series which have become due solely by such declaration
     of acceleration, have been cured or waived as provided in Section 513.

No such rescission shall affect any subsequent default or impair any right
resulting therefrom.

                                       42
<PAGE>
 
     SECTION 503. Collection of Indebtedness and Suits for Enforcement by
                  -------------------------------------------------------
Trustee. The Company covenants that if:
- -------                                

          (1)  default is made in the payment of any installment of interest or
     Additional Amounts, if any, on any Security of any series or any coupon
     appertaining thereto when such interest or Additional Amount becomes due
     and payable and such default continues for a period of 30 days, or

          (2)  default is made in the payment of the principal of (or premium or
     Make-Whole Amount, if any, on) any Security of any series at its Maturity,

then the Company shall, upon demand of the Trustee, pay to the Trustee, for the
benefit of the Holders of the Securities of such series and any such coupons,
the whole amount then due and payable on such Securities and any such coupons
for principal (and premium or Make-Whole Amount, if any) and interest and
Additional Amounts, if any, with interest on any overdue principal (and premium
or Make-Whole Amount, if any) and, to the extent that payment of such interest
is legally enforceable, on any overdue installments of interest or Additional
Amounts, if any, at the rate or rates borne by or provided for in such
Securities, and, in addition thereto, such further amount as is sufficient to
cover the costs and expenses of collection, including the reasonable
compensation, expenses, disbursements and advances of the Trustee, its agents
and counsel.

     If the Company fails to pay such amounts forthwith upon such demand, the
Trustee, in its own name and as trustee of an express trust, may institute a
judicial proceeding for the collection of the sums so due and unpaid, and may
prosecute such proceeding to judgment or final decree, and may enforce the same
against the Company or any other obligor on the Securities of such series and
collect the moneys adjudged or decreed to be payable in the manner provided by
law out of the property of the Company or any other obligor on the Securities of
such series, wherever situated.

     If an Event of Default with respect to Securities of any series occurs and
is continuing, the Trustee may in its discretion proceed to protect and enforce
its rights and the rights of the Holders of Securities of such series and any
coupons appertaining thereto by such appropriate judicial proceedings as the
Trustee deems most effectual to protect and enforce any such rights, whether for
the specific enforcement of any covenant or agreement in this Indenture or in
aid of the exercise of any power granted herein, or to enforce any other proper
remedy.

     SECTION 504. Trustee May File Proofs of Claim. In case of the pendency of
                  --------------------------------                            
any receivership, insolvency, liquidation, bankruptcy, reorganization,
arrangement, adjustment, composition or other judicial proceeding relative to
the Company or any other obligor on the Securities of such series or the
property of the Company or of such other obligor or their creditors, the Trustee
(irrespective of whether the principal of the Securities of any series is then
due and payable as therein expressed or by declaration or otherwise and
irrespective of whether the Trustee has made any demand on the Company for the
payment of overdue principal, 

                                       43
<PAGE>
 
premium or Make-Whole Amount, if any, or interest or Additional Amounts, if any)
shall be entitled and empowered, by intervention in such proceeding or
otherwise:

          (1)  to file and prove a claim for the whole amount, or such lesser
     amount as may be provided for in the Securities of such series, of
     principal (and premium or Make-Whole Amount, if any) and interest and
     Additional Amounts, if any, owing and unpaid in respect of the Securities
     of such series and to file such other papers or documents and take such
     other action, including participating as a member of any official creditors
     committee appointed in the matter, as it may deem necessary or advisable in
     order to have the claims of the Trustee (including any claim for the
     reasonable compensation, expenses, disbursements and advances of the
     Trustee, its agents and counsel) and of the Holders allowed in such
     judicial proceeding, and

          (2)  to collect and receive any moneys or other property payable or
     deliverable on any such claims and to distribute the same;

and any custodian, receiver, assignee, trustee, liquidator, sequestrator (or
other similar official) in any such judicial proceeding is hereby authorized by
each Holder of Securities of such series and any coupons appertaining thereto to
make such payments to the Trustee, and in the event that the Trustee consents to
the making of such payments directly to the Holders, to pay to the Trustee any
amount due to it for the reasonable compensation, expenses, disbursements and
advances of the Trustee and any predecessor Trustee, their agents and counsel,
and any other amounts due the Trustee or any predecessor Trustee under Section
606.

     Nothing herein contained shall be deemed to authorize the Trustee to
authorize or consent to or accept or adopt on behalf of any Holder of a Security
or coupon any plan of reorganization, arrangement, adjustment or composition
affecting the Securities or coupons or the rights of any Holder thereof, or to
authorize the Trustee to vote in respect of the claim of any Holder of a
Security or coupon in any such proceeding.

     SECTION 505. Trustee May Enforce Claims Without Possession of Securities or
                  --------------------------------------------------------------
Coupons. All rights of action and claims under this Indenture or any of the
- -------                                                                    
Securities or any coupons may be prosecuted and enforced by the Trustee without
the possession of any of the Securities or coupons or the production thereof in
any proceeding relating thereto, and any such proceeding instituted by the
Trustee shall be brought in its own name as trustee of an express trust, and any
recovery of judgment shall, after provision for the payment of the reasonable
compensation, expenses, disbursements and advances of the Trustee, its agents
and counsel, be for the ratable benefit of the Holders of the Securities and
coupons in respect of which such judgment has been recovered.

     SECTION 506. Application of Money Collected. Any money collected by the
                  ------------------------------                            
Trustee pursuant to this Article shall be applied in the following order, at the
date or dates fixed by the Trustee and, in case of the distribution of such
money on account of principal (or premium or Make-Whole Amount, if any) or
interest or Additional Amounts, if any, on presentation of the 

                                       44
<PAGE>
 
Securities or coupons, or both, as the case may be, and the notation thereon of
the payment if only partially paid and upon surrender thereof if fully paid:

          (1)  to the payment of all amounts due the Trustee and any predecessor
     Trustee under Section 606;

          (2)  to the payment of the amounts then due and unpaid on the
     Securities and coupons for principal (and premium or Make-Whole Amount, if
     any) and interest and Additional Amounts, if any, payable, in respect of
     which or for the benefit of which such money has been collected, ratably,
     without preference or priority of any kind, according to the aggregate
     amounts due and payable on such Securities and coupons for principal (and
     premium or Make-Whole Amount, if any) and interest and Additional Amounts,
     if any, respectively; and

          (3)  to the payment of the remainder, if any, to the Company.

     SECTION 507. Limitation on Suits. No Holder of any Security of any series
                  -------------------                                         
or any coupon appertaining thereto shall have any right to institute any
proceeding, judicial or otherwise, with respect to this Indenture, or for the
appointment of a receiver or trustee, or for any other remedy hereunder, unless:

          (1)  such Holder has previously given written notice to the Trustee of
     a continuing Event of Default with respect to the Securities of such
     series;

          (2)  the Holders of not less than 25% in principal amount of the
     Outstanding Securities of such series have made written request to the
     Trustee to institute proceedings in respect of such Event of Default in its
     own name as Trustee hereunder;

          (3)  such Holder or Holders have offered to the Trustee reasonable
     indemnity against the costs, expenses and liabilities to be incurred in
     compliance with such request;

          (4)  the Trustee for 60 days after its receipt of such notice, request
     and offer of indemnity has failed to institute any such proceeding; and

          (5)  no direction inconsistent with such written request has been
     given to the Trustee during such 60-day period by the Holders of a majority
     in principal amount of the Outstanding Securities of such series;

it being understood and intended that no one or more of such Holders shall have
any right in any manner whatever by virtue of, or by availing of, any provision
of this Indenture to affect, disturb or prejudice the rights of any other of
such Holders, or to obtain or to seek to obtain priority or preference over any
other of such Holders or to enforce any right under this Indenture, except in
the manner herein provided and for the equal and ratable benefit of all such
Holders.

                                       45
<PAGE>
 
     SECTION 508. Unconditional Right of Holders to Receive Principal, Premium
                  ------------------------------------------------------------
or Make-Whole Amount, Interest and Additional Amounts. Notwithstanding any other
- -----------------------------------------------------                           
provision in this Indenture, the Holder of any Security or coupon shall have the
right which is absolute and unconditional to receive payment of the principal of
(and premium or Make-Whole Amount, if any, on ) and (subject to Sections 305 and
307) interest and Additional Amounts, if any, on such Security or payment of
such coupon on or after the respective due dates expressed in such Security or
coupon (or, in the case of redemption, on the Redemption Date) and to institute
suit for the enforcement of any such payment, and such rights shall not be
impaired or affected without the consent of such Holder.

     SECTION 509. Restoration of Rights and Remedies. If the Trustee or any
                  ----------------------------------                       
Holder of a Security or coupon has instituted any proceeding to enforce any
right or remedy under this Indenture and such proceeding has been discontinued
or abandoned for any reason, or has been determined adversely to the Trustee or
to such Holder, then and in every such case the Company, the Trustee and the
Holders of Securities and coupons shall, subject to any determination in such
proceeding, be restored severally and respectively to their former positions
hereunder and thereafter all rights and remedies of the Trustee and the Holders
shall continue as though no such proceeding had been instituted.

     SECTION 510. Rights and Remedies Cumulative. Except as otherwise provided
                  ------------------------------                              
with respect to the replacement or payment of mutilated, destroyed, lost or
stolen Securities or coupons in the last paragraph of Section 306, no right or
remedy herein conferred on or reserved to the Trustee or to the Holders of
Securities or coupons is intended to be exclusive of any other right or remedy,
and every right and remedy shall, to the extent permitted by law, be cumulative
and in addition to every other right and remedy given hereunder or now or
hereafter existing at law or in equity or otherwise. The assertion or employment
of any right or remedy hereunder, or otherwise, shall not prevent the concurrent
assertion or employment of any other appropriate right or remedy.

     SECTION 511. Delay or Omission Not Waiver. No delay or omission of the
                  ----------------------------                             
Trustee or of any Holder of any Security or coupon to exercise any right or
remedy accruing upon any Event of Default shall impair any such right or remedy
or constitute a waiver of any such Event of Default or an acquiescence therein.
Every right and remedy given by this Article or by law to the Trustee or to the
Holders may be exercised from time to time, and as often as may be deemed
expedient, by the Trustee or by the Holders of Securities or coupons, as the
case may be.

     SECTION 512. Control by Holders of Securities. The Holders of not less than
                  --------------------------------                              
a majority in principal amount of the Outstanding Securities of any series shall
have the right to direct the time, method and place of conducting any proceeding
for any remedy available to the Trustee, or exercising any trust or power
conferred on the Trustee with respect to the Securities of such series, provided
                                                                        --------
that:

          (1)  such direction is not in conflict with any rule of law or with
     this Indenture,

                                       46
<PAGE>
 
          (2)  the Trustee may take any other action deemed proper by the
     Trustee which is not inconsistent with such direction, and

          (3)  the Trustee need not take any action which might involve it in
     personal liability or be unduly prejudicial to the Holders of Securities of
     such series not joining therein (but the Trustee shall have no obligation
     as to the determination of such undue prejudice).

     SECTION 513. Waiver of Past Defaults. The Holders of at least a majority in
                  -----------------------                                       
principal amount of the Outstanding Securities of any series may on behalf of
the Holders of all the Securities of such series and any coupons appertaining
thereto waive any past default hereunder with respect to such series and its
consequences, except a default:

          (1)  in the payment of the principal of (or premium or Make-Whole
     Amount, if any, on) or interest or Additional Amounts, if any, on any
     Security of such series or any coupons appertaining thereto, or

          (2)  in respect of a covenant or provision hereof which under Article
     Nine cannot be modified or amended without the consent of the Holder of
     each Outstanding Security of such series affected thereby.

     Upon any such waiver, such default shall cease to exist, and any Event of
Default arising therefrom shall be deemed to have been cured, for every purpose
of this Indenture; but no such waiver shall extend to any subsequent or other
default or Event of Default or impair any right resulting therefrom.

     SECTION 514. Waiver of Usury, Stay or Extension Laws. The Company covenants
                  ---------------------------------------                       
(to the extent which it may lawfully do so) that it shall not at any time insist
on, or plead, or in any manner whatsoever claim or take the benefit or advantage
of, any usury, stay or extension law wherever enacted, now or at any time
hereafter in force, which may affect the covenants or the performance of this
Indenture; and the Company (to the extent which it may lawfully do so) hereby
expressly waives all benefit or advantage of any such law, and covenants that it
shall not hinder, delay or impede the execution of any power herein granted to
the Trustee, but shall suffer and permit the execution of every such power as
though no such law had been enacted.

     SECTION 515. Undertaking for Costs. All parties to this Indenture agree,
                  ---------------------                                      
and each Holder of any Security by such Holder's acceptance thereof shall be
deemed to have agreed, that any court may in its discretion require, in any suit
for the enforcement of any right or remedy under this Indenture, or in any suit
against the Trustee for any action taken or omitted by it as Trustee, the filing
by any party litigant in such suit of any undertaking to pay the costs of such
suit, and that such court may in its discretion assess reasonable costs,
including reasonable attorneys' fees, against any party litigant in such suit
having due regard to the merits and good faith of the claims or defenses made by
such party litigant; but the provisions of this Section shall not apply to any
suit instituted by the Trustee, to any suit instituted by any Holder, or 

                                       47
<PAGE>
 
group of Holders, holding in the aggregate more than 10% in principal amount of
the Outstanding Securities, or to any suit instituted by any Holder for the
enforcement of the payment of the principal of (or premium or Make-Whole Amount,
if any, on) or interest or Additional Amounts, if any, on any Security on or
after the respective Stated Maturities expressed in such Security (or, in the
case of redemption, on or after the Redemption Date).

                                  ARTICLE SIX
                                  THE TRUSTEE

     SECTION 601. Notice of Defaults. Within 90 days after the occurrence of any
                  ------------------                                            
default hereunder with respect to the Securities of any series, the Trustee
shall give to the Holders of the Securities of such series, in the manner and to
the extent provided in Section 313(c) of the Trust Indenture Act, notice of such
default hereunder known to the Trustee, unless such default has been cured or
waived; provided, however, that, except in the case of a default in the payment
        --------  -------                                                      
of the principal of (or premium or Make-Whole Amount, if any, on) or interest or
Additional Amounts, if any, on any Security of such series, or in the payment of
any sinking fund installment with respect to the Securities of such series, the
Trustee shall be protected in withholding such notice if and so long as
Responsible Officers of the Trustee in good faith determine that the withholding
of such notice is in the interests of the Holders of the Securities and coupons
of such series; and provided, further, that in the case of any default or breach
                    --------  -------                                           
of the character specified in clause (4) of Section 501 with respect to the
Securities of such series and any coupons appertaining thereto, no such notice
to Holders shall be given until at least 60 days after the occurrence thereof.
For the purposes of this Section, the term "default" means any event which is,
                                            -------                           
or after notice or lapse of time or both would become, an Event of Default with
respect to the Securities of such series.

     SECTION 602. Certain Rights of Trustee. Subject to the provisions of
                  -------------------------                              
Section 315(a) through 315(d) of the Trust Indenture Act:

          (1)  the Trustee shall perform only such duties as are expressly
     undertaken by it to perform under this Indenture;

          (2)  the Trustee may rely and shall be protected in acting or
     refraining from acting upon any resolution, certificate, statement,
     instrument, opinion, report, notice, request, direction, consent, order,
     bond, debenture, note, coupon or other paper or document believed by it to
     be genuine and to have been signed or presented by the proper party or
     parties;

          (3)  any request or direction of the Company mentioned herein shall be
     sufficiently evidenced by a Company Request or Company Order (other than
     delivery of any Security, together with any coupons appertaining thereto,
     to the Trustee for authentication and delivery pursuant to Section 303,
     which shall be sufficiently evidenced as provided therein) and any
     resolution of the Board of Directors shall be sufficiently evidenced by a
     Board Resolution;

                                       48
<PAGE>
 
          (4)  whenever, in the administration of this Indenture, the Trustee
     deems it desirable that a matter be proved or established prior to taking,
     suffering or omitting any action hereunder, the Trustee (unless other
     evidence is specifically prescribed herein) may, in the absence of bad
     faith on its part, rely on a Company Certificate;

          (5)  the Trustee may consult with counsel and the advice of such
     counsel or any Opinion of Counsel shall be full and complete authorization
     and protection in respect of any action taken, suffered or omitted by it
     hereunder in good faith and in reliance thereon;

          (6)  the Trustee shall be under no obligation to exercise any of the
     rights or powers vested in it by this Indenture at the request or direction
     of any of the Holders of Securities of any series or any coupons
     appertaining thereto pursuant to this Indenture, unless such Holders have
     offered to the Trustee reasonable security or indemnity against the costs,
     expenses and liabilities which might be incurred by it in compliance with
     such request or direction;

          (7)  the Trustee shall not be bound to make any investigation into the
     facts or matters stated in any resolution, certificate, statement,
     instrument, opinion, report, notice, request, direction, consent, order,
     bond, debenture, note, coupon or other paper or document, but the Trustee,
     in its discretion, may make such further inquiry or investigation into such
     facts or matters as it may see fit, and, if the Trustee determines to make
     such further inquiry or investigation, it shall be entitled to examine the
     books, records and premises of the Company, personally or by agent or
     attorney;

          (8)  the Trustee may execute any of the trusts or powers hereunder or
     perform any duties hereunder either directly or by or through agents or
     attorneys and the Trustee shall not be responsible for any misconduct or
     negligence on the part of any agent or attorney appointed with due care by
     it hereunder;

          (9)  the Trustee shall not be liable for any action taken, suffered or
     omitted by it in good faith and reasonably believed by it to be authorized
     or within the discretion or rights or powers conferred on it by this
     Indenture;

          (10) The Trustee shall not be deemed to have knowledge of any event or
     fact upon the occurrence of which it may be required to take action
     hereunder unless a Responsible Officer of the Trustee has actual knowledge
     of the occurrence of such event or fact; and

          (11) The Trustee shall not be required to expend or risk its own funds
     or otherwise incur any financial liability in the performance of any of its
     duties hereunder, or in the exercise of any of its rights or powers, if it
     has reasonable grounds for believing that repayment of such funds or
     adequate indemnity against such risk or liability is not reasonably assured
     to it.

                                       49
<PAGE>
 
     SECTION 603. Not Responsible for Recitals or Issuance of Securities.
                  ------------------------------------------------------ 
The recitals contained herein and in the Securities, except the Trustee's
certificate of authentication, and in any coupons shall be taken as the
statements of the Company and neither the Trustee nor any Authenticating Agent
assumes any responsibility for their correctness. The Trustee makes no
representations as to the validity or sufficiency of this Indenture or of the
Securities or any coupons, except that the Trustee represents that it is duly
authorized to execute and deliver this Indenture, authenticate the Securities
and perform its obligations hereunder. Neither the Trustee nor any
Authenticating Agent shall be accountable for the use or application by the
Company of Securities or the proceeds thereof.

     SECTION 604. May Hold Securities. The Trustee, any Paying Agent, Security
                  -------------------                                         
Registrar, Authenticating Agent or any other agent of the Company, in its
individual or any other capacity, may become the owner or pledgee of Securities
and coupons and, subject to Sections 310(b) and 311 of the Trust Indenture Act,
may otherwise deal with the Company with the same rights it would have if it
were not Trustee, Paying Agent, Security Registrar, Authenticating Agent or such
other agent.

     SECTION 605. Money Held in Trust; Permitted Investments. Money held by the
                  ------------------------------------------                   
Trustee in trust hereunder need not be segregated from other funds except to the
extent required by law. The Trustee shall be under no liability for interest on,
or investment of, any money received by it hereunder except as otherwise agreed
with and for the sole benefit of the Company.

     Pending their use under this Indenture, moneys held by the Trustee
hereunder may be invested in Permitted Investments maturing or redeemable at the
option of the holder at or before the time when such moneys are expected to be
needed by the Trustee and shall be so invested pursuant to a Company Order if no
Event of Default known to the Trustee then exists under this Indenture and
otherwise at the discretion of the Trustee. Any investment pursuant to this
Section 605 shall be held by the Trustee as a part of the moneys held by the
Trustee hereunder, as applicable, and shall be sold or redeemed to the extent
necessary to make payments or transfers or anticipated payments from such
moneys.

     The Trustee shall be entitled to rely on all written investment
instructions provided by the Company hereunder, and shall have no duty to
monitor the compliance thereof with the restrictions set forth herein. The
Trustee shall have no responsibility or liability for any depreciation in the
value of any investment or for any loss, direct or indirect, resulting from any
investment made in accordance with a Company Order. The Trustee shall be without
liability to the Company or any Holder or any other person in the event that any
investment made in accordance with a Company Order shall cause any person to
incur any liability or rebates or other monies payable pursuant to the Internal
Revenue Code of 1986, as amended.

     Any interest realized on investments and any profit realized upon the sale
or other disposition thereof shall be credited to moneys held by the Trustee
hereunder and any loss shall be charged thereto.

                                       50
<PAGE>
 
     SECTION 606. Compensation and Reimbursement. The Company agrees:
                  ------------------------------                     

          (1)  to pay to the Trustee from time to time reasonable compensation
     for all services rendered by it hereunder (which compensation shall not be
     limited by any provision of law in regard to the compensation of a trustee
     of an express trust);

          (2)  except as otherwise expressly provided herein, to reimburse each
     of the Trustee and any predecessor Trustee upon its request for all
     reasonable expenses, disbursements and advances incurred or made by it in
     connection with its administration of the trust hereunder (including the
     reasonable compensation and the expenses and disbursements of its agents
     and counsel), except to the extent any such expense, disbursement or
     advance may be attributable to its negligence or bad faith; and

          (3)  to indemnify each of the Trustee and any predecessor Trustee for,
     and to hold it harmless against, any loss, liability or expense, arising
     out of or in connection with the acceptance or administration of the trust
     or trusts or the performance of its duties hereunder, including the costs
     and expenses of defending itself against any claim or liability in
     connection with the exercise or performance of any of its powers or duties
     hereunder except to the extent any such loss, liability or expense may be
     attributable to its own negligence or bad faith.

     As security for the performance of the obligations of the Company under
this Section, the Trustee shall have a lien prior to the Securities on all
property and funds held or collected by the Trustee as such, except funds held
in trust for the payment of principal of (or premium or Make-Whole Amount, if
any, on) or interest or Additional Amounts, if any, on particular Securities or
any coupons.

     The provisions of this Section shall survive the termination of this
Indenture.

     SECTION 607. Trustee Eligibility; Conflicting Interests. There shall at all
                  ------------------------------------------                    
times be a Trustee hereunder which is eligible to act as Trustee under Section
310(a)(1) of the Trust Indenture Act and has a combined capital and surplus of
at least $50,000,000. If such Trustee publishes reports of condition at least
annually, pursuant to law or the requirements of Federal, State, Territorial or
District of Columbia supervising or examining authority, then for the purposes
of this Section, the combined capital and surplus of such Trustee shall be
deemed to be its combined capital and surplus as set forth in its most recent
report of condition so published. No obligor on the Securities or Affiliate of
any such obligor shall serve as Trustee on such Securities. If at any time the
Trustee ceases to be eligible in accordance with the provisions of this Section,
it shall resign immediately in the manner and with the effect hereinafter
specified in this Article.

                                       51
<PAGE>
 
     SECTION 608. Resignation and Removal; Appointment of Successor.
                  ------------------------------------------------- 

          (a)  No resignation or removal of the Trustee and no appointment of a
     successor Trustee pursuant to this Article shall become effective until the
     acceptance of appointment by the successor Trustee in accordance with the
     applicable requirements of Section 609.

          (b)  The Trustee may resign at any time with respect to the Securities
     of one or more series by giving written notice thereof to the Company. If
     an instrument of acceptance by a successor Trustee has not been delivered
     to the Trustee within 30 days after the giving of such notice of
     resignation, the resigning Trustee may petition any court of competent
     jurisdiction for the appointment of a successor Trustee.

          (c)  The Trustee may be removed at any time with respect to the
     Securities of any series by Act of the Holders of a majority in principal
     amount of the Outstanding Securities of such series delivered to the
     Trustee and the Company.

          (d)  If at any time:

               (1)  the Trustee fails to comply with the provisions of Section
          310(b) of the Trust Indenture Act after written request therefor by
          the Company or any Holder of a Security who has been a bona fide
          Holder of a Security for at least six months, or

               (2)  the Trustee ceases to be eligible under Section 607 and
          fails to resign after written request therefor by the Company or any
          Holder of a Security who has been a bona fide Holder of a Security for
          at least six months, or

               (3)  the Trustee becomes incapable of acting or is adjudged a
          bankrupt or insolvent or a receiver of the Trustee or of its property
          is appointed or any public officer takes charge or control of the
          Trustee or of its property or affairs for the purpose of
          rehabilitation, conservation or liquidation,

     then, in any such case, (i) the Company, by or pursuant to a Board
     Resolution, may remove the Trustee and appoint a successor Trustee with
     respect to all Securities, or (ii) subject to Section 315(e) of the Trust
     Indenture Act, any Holder of a Security who has been a bona fide Holder of
     a Security for at least six months may, on behalf of such Holder and all
     others similarly situated, petition any court of competent jurisdiction for
     the removal of the Trustee with respect to all Securities and the
     appointment of a successor Trustee or Trustees.

          (e)  If the Trustee resigns, is removed or becomes incapable of
     acting, or if a vacancy occurs in the office of Trustee for any cause with
     respect to the Securities of one or more series, the Company, by or
     pursuant to a Board Resolution, shall promptly 

                                       52
<PAGE>
 
     appoint a successor Trustee or Trustees with respect to the Securities of
     such series (it being understood that any such successor Trustee may be
     appointed with respect to the Securities of one or more or all of such
     series and that at any time there shall be only one Trustee with respect to
     the Securities of any particular series). If, within one year after such
     resignation, removal or incapability, or the occurrence of such vacancy, a
     successor Trustee with respect to the Securities of any series is appointed
     by Act of the Holders of a majority in principal amount of the Outstanding
     Securities of such series delivered to the Company and the retiring
     Trustee, the successor Trustee so appointed shall, forthwith upon its
     acceptance of such appointment, become the successor Trustee with respect
     to the Securities of such series and to that extent supersede the successor
     Trustee appointed by the Company. If no successor Trustee with respect to
     the Securities of any series has been so appointed by the Company or the
     Holders of Securities and accepted appointment in the manner hereinafter
     provided, any Holder of a Security who has been a bona fide Holder of a
     Security of such series for at least six months may, on behalf of such
     Holder and all others similarly situated, petition any court of competent
     jurisdiction for the appointment of a successor Trustee with respect to
     Securities of such series.

          (f)  The Company shall give notice of each resignation and each
     removal of the Trustee with respect to the Securities of any series and
     each appointment of a successor Trustee with respect to the Securities of
     any series in the manner provided for notices to the Holders of Securities
     in Section 106. Each notice shall include the name of the successor Trustee
     with respect to the Securities of such series and the address of its
     Corporate Trust Office.

     SECTION 609. Acceptance of Appointment by Successor.
                  -------------------------------------- 

          (a)  In case of the appointment hereunder of a successor Trustee with
     respect to all Securities, every such successor Trustee shall execute,
     acknowledge and deliver to the Company and the retiring Trustee an
     instrument accepting such appointment, and, thereupon, the resignation or
     removal of the retiring Trustee shall become effective and such successor
     Trustee, without any further act, deed or conveyance, shall become vested
     with all the rights, powers, trusts and duties of the retiring Trustee;
     but, on request of the Company or the successor Trustee, such retiring
     Trustee shall, upon payment of its charges, execute and deliver an
     instrument transferring to such successor Trustee all the rights, powers
     and trusts of the retiring Trustee, and shall duly assign, transfer and
     deliver to such successor Trustee all property and money held by such
     retiring Trustee hereunder, subject nevertheless to its claim, if any,
     provided for in Section 606.

          (b)  In case of the appointment hereunder of a successor Trustee with
     respect to the Securities of one or more (but not all) series, the Company,
     the retiring Trustee and each successor Trustee with respect to the
     Securities of one or more series shall execute and deliver an indenture
     supplemental hereto, pursuant to Article Nine, wherein each successor
     Trustee shall accept such appointment and which (i) shall contain such

                                       53
<PAGE>
 
     provisions as are necessary or desirable to transfer and confirm to, and to
     vest in, each successor Trustee all the rights, powers, trusts and duties
     of the retiring Trustee with respect to the Securities of such series to
     which the appointment of such successor Trustee relates, (ii) if the
     retiring Trustee is not retiring with respect to all Securities, shall
     contain such provisions as are necessary or desirable to confirm that all
     the rights, powers, trusts and duties of the retiring Trustee with respect
     to the Securities of such series as to which the retiring Trustee is not
     retiring shall continue to be vested in the retiring Trustee and (iii)
     shall add to or change any of the provisions of this Indenture as are
     necessary to provide for or facilitate the administration of the trusts
     hereunder by more than one Trustee, it being understood that nothing herein
     or in such supplemental indenture shall constitute such Trustees co-
     trustees of the same trust and that each such Trustee shall be trustee of a
     trust or trusts hereunder separate and apart from any trust or trusts
     hereunder administered by any other such Trustee; and, upon the execution
     and delivery of such supplemental indenture, the resignation or removal of
     the retiring Trustee shall become effective to the extent provided therein
     and each such successor Trustee, without any further act, deed or
     conveyance, shall become vested with all the rights, powers, trusts and
     duties of the retiring Trustee with respect to the Securities of such
     series to which the appointment of such successor Trustee relates; but, on
     request of the Company or any successor Trustee, such retiring Trustee
     shall duly assign, transfer and deliver to such successor Trustee all
     property and money held by such retiring Trustee hereunder with respect to
     the Securities of such series to which the appointment of such successor
     Trustee relates.

          (c)  Upon request of any such successor Trustee, the Company shall
     execute any and all instruments for more fully and certainly vesting in and
     confirming to such successor Trustee all such rights, powers and trusts
     referred to in paragraph (a) or (b) of this Section, as the case may be.

          (d)  No successor Trustee shall accept its appointment unless at the
     time of such acceptance such successor Trustee shall be qualified and
     eligible under this Article.

     SECTION 610. Merger, Conversion, Consolidation or Succession to Business.
                  -----------------------------------------------------------
Any corporation into which the Trustee may be merged or converted or with which
it may be consolidated, or any corporation resulting from any merger, conversion
or consolidation to which the Trustee shall be a party, or any corporation
succeeding to all or substantially all of the corporate trust business of the
Trustee, shall be the successor of the Trustee hereunder, provided that such
                                                          --------          
corporation shall be otherwise qualified and eligible under this Article,
without the execution or filing of any paper or any further act on the part of
any of the parties hereto. In case any Securities or coupons have been
authenticated, but not delivered, by the Trustee then in office, any successor
by merger, conversion or consolidation to such authenticating Trustee may adopt
such authentication and deliver the Securities or coupons so authenticated with
the same effect as if such successor Trustee had itself authenticated such
Securities or coupons. In case any Securities or coupons have not been
authenticated by such predecessor Trustee, any such successor Trustee may
authenticate and deliver such Securities 

                                       54
<PAGE>
 
or coupons, in either its own name or that of its predecessor Trustee, with the
full force and effect which this Indenture provides for the certificate of
authentication of the Trustee.

     SECTION 611. Appointment of Authenticating Agent. At any time when any of
                  -----------------------------------                         
the Securities remain Outstanding, the Trustee may appoint an Authenticating
Agent or Agents with respect to one or more series of Securities which shall be
authorized to act on behalf of the Trustee to authenticate Securities of such
series issued upon exchange, registration of transfer or partial redemption or
repayment thereof, and Securities so authenticated shall be entitled to the
benefits of this Indenture and shall be valid and obligatory for all purposes as
if authenticated by the Trustee hereunder. Any such appointment shall be
evidenced by an instrument in writing signed by a Responsible Officer of the
Trustee, a copy of which instrument shall be promptly furnished to the Company.
Whenever reference is made in this Indenture to the authentication and delivery
of Securities by the Trustee or the Trustee's certificate of authentication,
such reference shall be deemed to include authentication and delivery on behalf
of the Trustee by an Authenticating Agent and a certificate of authentication
executed on behalf of the Trustee by an Authenticating Agent. Each
Authenticating Agent shall be acceptable to the Company and, except as may
otherwise be provided pursuant to Section 301, shall at all times be a bank or
trust company or corporation organized and doing business and in good standing
under the laws of the United States of America or of any State or the District
of Columbia, authorized under such laws to act as Authenticating Agent, having a
combined capital and surplus of not less than $50,000,000 and subject to
supervision or examination by Federal or State or District of Columbia
authorities. If such Authenticating Agent publishes reports of condition at
least annually, pursuant to law or the requirements of the aforesaid supervising
or examining authority, then for the purposes of this Section, the combined
capital and surplus of such Authenticating Agent shall be deemed to be its
combined capital and surplus as set forth in its most recent report of condition
so published. In case at any time an Authenticating Agent ceases to be eligible
in accordance with the provisions of this Section, such Authenticating Agent
shall resign immediately in the manner and with the effect specified in this
Section.

     Any corporation into which an Authenticating Agent may be merged or
converted or with which it may be consolidated, or any corporation resulting
from any merger, conversion or consolidation to which such Authenticating Agent
is a party, or any corporation succeeding to the corporate agency or corporate
trust business of an Authenticating Agent, shall continue to be an
Authenticating Agent, provided such corporation is otherwise eligible under this
Section, without the execution or filing of any paper or further act on the part
of the Trustee or the Authenticating Agent.

     An Authenticating Agent for any series of Securities may at any time resign
by giving written notice of resignation to the Trustee for such series and the
Company. The Trustee for any series of Securities may at any time terminate the
agency of an Authenticating Agent by giving written notice of termination to
such Authenticating Agent and the Company. Upon receiving such a notice of
resignation or upon such a termination, or in case at any time such
Authenticating Agent ceases to be eligible in accordance with the provisions of
this Section, the Trustee for such series may appoint a successor Authenticating
Agent which shall be acceptable 

                                       55
<PAGE>
 
to the Company and shall give notice of such appointment to all Holders of
Securities of or within the series with respect to which such Authenticating
Agent will serve in the manner set forth in Section 106. Any successor
Authenticating Agent upon acceptance of its appointment hereunder shall become
vested with all the rights, powers and duties of its predecessor hereunder, with
like effect as if originally named as an Authenticating Agent herein. No
successor Authenticating Agent shall be appointed unless eligible under the
provisions of this Section.

     The Company agrees to pay to each Authenticating Agent from time to time
reasonable compensation including reimbursement of its reasonable expenses for
its services under this Section.

     If an appointment with respect to one or more series is made pursuant to
this Section, the Securities of such series may have endorsed thereon, in
addition to or in lieu of the Trustee's certificate of authentication, an
alternate certificate of authentication substantially in the following form:

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

                              STATE STREET BANK AND TRUST
                                COMPANY,
                              as Trustee


                              By:__________________________________,
                              as Authenticating Agent


                              By:__________________________________
                                    Authorized Officer


                                 ARTICLE SEVEN
               HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY

     SECTION 701. Disclosure of Names and Addresses of Holders. Every Holder of
                  --------------------------------------------                 
Securities or coupons, by receiving and holding the same, agrees with the
Company and the Trustee that neither the Company nor the Trustee nor any
Authenticating Agent nor any Paying Agent nor any Security Registrar shall be
held accountable by reason of the disclosure of any information as to the names
and addresses of the Holders of Securities in accordance with Section 312 of the
Trust Indenture Act, regardless of the source from which such information was
derived, and that the Trustee shall not be held accountable by reason of mailing
any material pursuant to a request made under Section 312(b) of the Trust
Indenture Act.

                                       56
<PAGE>
 
     SECTION 702. Reports by Trustee. Within 60 days after February 1 of each
                  ------------------                                         
year commencing with the first February 1 after the first issuance of Securities
pursuant to this Indenture, the Trustee shall transmit by mail to all Holders of
Securities as provided in Section 313(c) of the Trust Indenture Act a brief
report dated as of such February 1 if required by Section 313(a) of the Trust
Indenture Act.

     SECTION 703. Company to Furnish Trustee Names and Addresses of Holders. The
                  ---------------------------------------------------------     
Company shall furnish or cause to be furnished to the Trustee:

          (a)  semi-annually, not later than 15 days after the Regular Record
     Date for interest for each series of Securities, a list, in such form as
     the Trustee may reasonably require, of the names and addresses of the
     Holders of Registered Securities of such series as of such Regular Record
     Date, or if there is no Regular Record Date for interest for such series of
     Securities, semi-annually, on such dates as are set forth in the Board
     Resolution or indenture supplemental hereto authorizing such series, and

          (b)  at such other times as the Trustee may request in writing, within
     30 days after the receipt by the Company of any such request, a list of
     similar form and content as of a date not more than 15 days prior to the
     time such list is furnished;

provided, however, that, so long as the Trustee is the Security Registrar, no
- --------  -------                                                            
such list shall be required to be furnished.

                                 ARTICLE EIGHT
               CONSOLIDATION, MERGER, SALE, LEASE OR CONVEYANCE

     SECTION 801. Consolidations and Mergers of Company and Sales, Leases and
                  -----------------------------------------------------------
Conveyances.  The Company will not consolidate or merge with or into (whether or
- -----------                                                                     
not the Company is the surviving corporation), or sell, assign, transfer, lease,
convey or otherwise dispose of all or substantially all of its properties or
assets in one or more related transactions, to another Person unless (i) the
surviving Person or the Person formed by or surviving such consolidation or
merger (if other than the Company) or to which such sale, assignment, transfer,
lease, conveyance or other disposition shall have been made (the "Surviving
Entity") is a corporation organized or existing under the laws of the United
States, any state thereof or the District of Columbia; (ii) the Surviving Entity
assumes all the obligations, including the due and punctual payment of the
principal of (and premium or Make-Whole Amount, if any, on) and interest and
Additional Amounts, if any, on all Securities, according to their tenor, and the
due and punctual performance and observance of all covenants and conditions, of
the Company under the Securities and the Indenture pursuant to a supplemental
Indenture in form reasonably satisfactory to the Trustee; and (iii) immediately
before and after giving effect to such transaction and treating any indebtedness
which becomes an obligation of the Company as a result of such transaction as
having been incurred by the Company at the time of the transaction, no Event of
Default and no event which, after notice or the lapse of time or both, would
become an Event of Default shall have occurred and be continuing.

                                       57
<PAGE>
 
     SECTION 802. Rights and Duties of Successor Entity. In case of any such
                  -------------------------------------                     
consolidation, merger, sale, lease or conveyance and upon any such assumption by
the successor entity, such successor entity shall succeed to and be substituted
for the Company, with the same effect as if it had been named herein as the
party of the first part, and the predecessor entity, except in the event of a
lease, shall be relieved of any further obligation under this Indenture and the
Securities. Such successor entity thereupon may cause to be signed, and may
issue either in its own name or in the name of the Company, any or all of the
Securities issuable hereunder which theretofore have not been signed by the
Company and delivered to the Trustee; and, upon the order of such successor
entity, instead of the Company, and subject to all the terms, conditions and
limitations in this Indenture prescribed, the Trustee shall authenticate and
shall deliver any Securities which previously have been signed and delivered by
the officers of the Company to the Trustee for authentication, and any
Securities which such successor entity thereafter shall cause to be signed and
delivered to the Trustee for that purpose. All the Securities so issued shall in
all respects have the same legal rank and benefit under this Indenture as the
Securities theretofore or thereafter issued in accordance with the terms of this
Indenture as though all of such Securities had been issued at the date of the
execution hereof.

     In case of any such consolidation, merger, sale, lease or conveyance, such
changes in phraseology and form (but not in substance) may be made in the
Securities thereafter to be issued as may be appropriate.

     SECTION 803. Company Certificate and Opinion of Counsel. Any consolidation,
                  ------------------------------------------                    
merger, sale, lease or conveyance permitted under Section 801 is also subject to
the condition that the Trustee receive a Company Certificate and an Opinion of
Counsel to the effect that any such consolidation, merger, sale, lease or
conveyance, and the assumption by any successor entity, complies with the
provisions of this Article and that all conditions precedent herein provided for
relating to such transaction have been complied with.

                                 ARTICLE NINE
                            SUPPLEMENTAL INDENTURES

     SECTION 901. Supplemental Indentures Without Consent of Holders. Without
                  --------------------------------------------------         
the consent of any Holders of Securities or coupons, the Company, when
authorized by or pursuant to a Board Resolution, and the Trustee, at any time
and from time to time, may enter into one or more indentures supplemental
hereto, in form satisfactory to the Trustee, for any of the following purposes:

          (1)  to evidence the succession of another Person to the Company and
     the assumption by any such successor of the covenants of the Company
     contained herein and in the Securities; or

          (2)  to add to the covenants of the Company for the benefit of the
     Holders of all or any series of Securities (and if such covenants are to be
     for the benefit of less than all series of Securities, stating that such
     covenants are expressly being included solely for 

                                       58
<PAGE>
 
     the benefit of such series) or to surrender any right or power herein
     conferred on the Company; or

          (3)  to add any additional Events of Default for the benefit of the
     Holders of all or any series of Securities (and if such Events of Default
     are to be for the benefit of less than all series of Securities, stating
     that such Events of Default are expressly being included solely for the
     benefit of such series); provided, however, that, in respect of any such
                              --------  -------                              
     additional Events of Default, such supplemental indenture may provide for a
     particular period of grace after default (which period may be shorter or
     longer than that allowed in the case of other defaults) or may provide for
     an immediate enforcement upon such default or may limit the remedies
     available to the Trustee upon such default or may limit the right of the
     Holders of a majority in aggregate principal amount of such series of
     Securities to which such additional Events of Default apply to waive such
     default; or

          (4)  to add to or change any of the provisions of this Indenture to
     provide that Bearer Securities may be registrable as to principal, to
     change or eliminate any restrictions on the payment of the principal of (or
     premium or Make-Whole Amount, if any, on) or interest or Additional
     Amounts, if any, on Bearer Securities, to permit Bearer Securities to be
     issued in exchange for Registered Securities, to permit Bearer Securities
     to be issued in exchange for Bearer Securities of other authorized
     denominations or to permit or facilitate the issuance of Securities in
     uncertificated form, provided that any such action shall not adversely
                          --------                                         
     affect the interests of the Holders of Securities of any series or any
     coupons appertaining thereto in any material respect; or

          (5)  to change or eliminate any of the provisions of this Indenture,
     provided that any such change or elimination shall become effective only
     --------                                                                
     when there is no Security Outstanding of any series created prior to the
     execution of such supplemental indenture which is entitled to the benefit
     of such provision; or

          (6)  to secure the Securities; or

          (7)  to establish the form or terms of Securities of any series and
     any coupons appertaining thereto as permitted by Sections 201 and 301,
     including the provisions and procedures, if applicable, for the conversion
     of such Securities into Common Shares or other securities of the Company;
     or

          (8) to evidence and provide for the acceptance of appointment
     hereunder by a successor Trustee with respect to the Securities of one or
     more series and to add to or change any of the provisions of this Indenture
     as are necessary to provide for or facilitate the administration of the
     trusts hereunder by more than one Trustee; or

          (9)  to cure any ambiguity, to correct or supplement any provision
     hereof which may be defective or inconsistent with any other provision
     hereof, or to make any other provisions with respect to matters or
     questions arising under this Indenture which 

                                       59
<PAGE>
 
     shall not be inconsistent with the provisions of this Indenture or to make
     any other changes, provided that, in each case, such provisions shall not
                        --------
     adversely affect the interests of the Holders of Securities of any series
     or any coupons appertaining thereto in any material respect; or

          (10) to close this Indenture with respect to the authentication and
     delivery of additional series of Securities or to qualify, or maintain
     qualification of, this Indenture under the Trust Indenture Act; or

          (11) to supplement any of the provisions of this Indenture to such
     extent as are necessary to permit or facilitate the defeasance and
     discharge of any series of Securities pursuant to Sections 401, 1402 and
     1403; provided that, in each case, any such action shall not adversely
           --------                                                        
     affect the interests of the Holders of Securities of such series and any
     coupons appertaining thereto or any other series of Securities in any
     material respect.

     SECTION 902. Supplemental Indentures with Consent of Holders. With the
                  -----------------------------------------------          
consent of the Holders of not less than a majority in principal amount of all
Outstanding Securities affected by such supplemental indenture, by Act of such
Holders delivered to the Company and the Trustee, the Company (when authorized
by or pursuant to a Board Resolution) and the Trustee may enter into an
indenture or indentures supplemental hereto for the purpose of adding any
provisions to or changing in any manner or eliminating any of the provisions of
this Indenture or of modifying in any manner the rights of the Holders of
Securities and coupons under this Indenture; provided, however, that no such
                                             --------  -------              
supplemental indenture shall, without the consent of the Holder of each
Outstanding Security affected thereby:

          (1)  change the Stated Maturity of the principal of (or premium or
     Make-Whole Amount, if any, on) or any installment of principal of or
     interest on, any Security; or reduce the principal amount thereof or the
     rate or amount of interest thereon or any Additional Amounts payable in
     respect thereof, or any premium or Make-Whole Amount payable upon the
     redemption thereof, or change any obligation of the Company to pay
     Additional Amounts pursuant to Section 1010 (except as contemplated by
     clause (1) of Section 801 and permitted by clause (1) of Section 901), or
     reduce the amount of the principal of an Original Issue Discount Security
     or Make-Whole Amount, if any, which would be due and payable upon a
     declaration of acceleration of the Maturity thereof pursuant to Section 502
     or the amount thereof provable in bankruptcy pursuant to Section 504; or
     adversely affect any right of repayment at the option of the Holder of any
     Security, or change any Place of Payment where, or the currency or
     currencies, currency unit or units or composite currency or currencies in
     which, the principal of any Security or any premium or Make-Whole Amount or
     any Additional Amounts payable in respect thereof or the interest thereon
     is payable; or impair the right to institute suit for the enforcement of
     any such payment on or after the Stated Maturity thereof (or, in the case
     of redemption or repayment at the option of the Holder, on or after the
     Redemption Date or the Repayment Date, as the case may be); or

                                       60
<PAGE>

          (2) reduce the percentage in principal amount of the Outstanding      
     Securities of any series, the consent of the Holders of which is required
     for any such supplemental indenture, or the consent of the Holders of which
     is required for any waiver with respect to such series (or compliance with
     certain provisions of this Indenture or certain defaults hereunder and
     their consequences) provided for in this Indenture, or reduce the
     requirements of Section 1504 for quorum or voting; or

          (3) modify any of the provisions of this Section, Section 513 or
     Section 1011, except to increase the required percentage to effect such
     action or to provide that certain other provisions of this Indenture cannot
     be modified or waived without the consent of the Holder of each Outstanding
     Security affected thereby.

     It shall not be necessary for any Act of Holders under this Section to
approve the particular form of any proposed supplemental indenture, but it shall
be sufficient if such Act approves the substance thereof.

     A supplemental indenture which changes or eliminates any covenant or other
provision of this Indenture which has expressly been included for the benefit of
one or more particular series of Securities, or which modifies the rights of the
Holders of Securities of such series with respect to such covenant or other
provision, shall be deemed not to affect the rights under this Indenture of the
Holders of Securities of any other series.

     SECTION 903. Execution of Supplemental Indentures. In executing, or
                  ------------------------------------                  
accepting the additional trusts created by, any supplemental indenture permitted
by this Article or the modification thereby of the trusts created by this
Indenture, the Trustee shall be entitled to receive, and shall be fully
protected in relying on, an Opinion of Counsel stating that the execution of
such supplemental indenture is authorized or permitted by this Indenture. The
Trustee may, but shall not be obligated to, enter into any such supplemental
indenture which affects the Trustee's own rights, duties or immunities under
this Indenture or otherwise.

     SECTION 904. Effect of Supplemental Indentures. Upon the execution of any
                  ---------------------------------                           
supplemental indenture under this Article, this Indenture shall be modified in
accordance therewith, and such supplemental indenture shall form a part of this
Indenture for all purposes; and every Holder of Securities theretofore or
thereafter authenticated and delivered hereunder and of any coupon appertaining
thereto shall be bound thereby.

     SECTION 905. Conformity with Trust Indenture Act. Every supplemental
                  -----------------------------------                    
indenture executed pursuant to this Article shall conform to the requirements of
the Trust Indenture Act as then in effect.

     SECTION 906. Reference in Securities to Supplemental Indentures. Securities
                  --------------------------------------------------            
of any series authenticated and delivered after the execution of any
supplemental indenture pursuant to this Article may, and shall, if required by
the Trustee, bear a notation in form approved by the Trustee as to any matter
provided for in such supplemental indenture. If the Company so 

                                       61
<PAGE>
 
determines, new Securities of any series so modified as to conform, in the
opinion of the Trustee and the Company, to any such supplemental indenture may
be prepared and executed by the Company and authenticated and delivered by the
Trustee in exchange for Outstanding Securities of such series.

     SECTION 907. Notice of Supplemental Indentures. Promptly after the
                  ---------------------------------                    
execution by the Company and the Trustee of any supplemental indenture pursuant
to the provisions of Section 902, the Company shall give notice thereof to the
Holders of each Outstanding Security affected, in the manner provided for in
Section 106, setting forth in general terms the substance of such supplemental
indenture.

                                  ARTICLE TEN
                                   COVENANTS

     SECTION 1001. Payment of Principal, Premium or Make-Whole Amount, Interest
                   ------------------------------------------------------------
and Additional Amounts. The Company covenants and agrees for the benefit of the
- ----------------------                                                         
Holders of each series of Securities that it shall duly and punctually pay to
the Trustee prior to 12:00 noon on the applicable date of payment the principal
of (and premium or Make-Whole Amount, if any, on) and interest and Additional
Amounts, if any, on the Securities of such series in accordance with the terms
of such series of Securities, any coupons appertaining thereto and this
Indenture. Unless otherwise specified as contemplated by Section 301 with
respect to any series of Securities, any interest and Additional Amounts, if
any, on Bearer Securities on or before Maturity, other than Additional Amounts,
if any, payable as provided in Section 1010 in respect of principal of (or
premium or Make-Whole Amount, if any, on) such a Security, shall be payable only
upon presentation and surrender of the several coupons for such interest
installments as are evidenced thereby as they severally mature. Unless otherwise
specified with respect to Securities of any series pursuant to Section 301, at
the option of the Company, all payments of principal may be paid by check to the
registered Holder of the Registered Security or other person entitled thereto
against surrender of such Security.

     SECTION 1002. Maintenance of Office or Agency. If Securities of a series
                   -------------------------------                           
are issuable only as Registered Securities, the Company shall maintain in each
Place of Payment for any series of Securities an office or agency where
Securities of such series may be presented or surrendered for payment, where
Securities of such series may be surrendered for registration of transfer or
exchange and where notices and demands to or on the Company in respect of the
Securities of such series and this Indenture may be served. If Securities of a
series are issuable as Bearer Securities, the Company shall maintain: (i) in the
city of [BOSTON, MASSACHUSETTS], an office or agency where any Registered
Securities of such series may be presented or surrendered for payment, where any
Registered Securities of such series may be surrendered for exchange, where
notices and demands to or on the Company in respect of the Securities of such
series and this Indenture may be served and where Bearer Securities of such
series and any coupons appertaining thereto may be presented or surrendered for
payment in the circumstances described in the following paragraph (and not
otherwise); (ii) subject to any laws or regulations applicable thereto, in a
Place of Payment for such series which is located outside the United 

                                       62
<PAGE>
 
States, an office or agency where Securities of such series and any coupons
appertaining thereto may be presented and surrendered for payment (including
payment of any Additional Amounts payable on Securities of such series pursuant
to Section 1010); provided, however, that if the Securities of such series are
                  --------  -------
listed on the Luxembourg Stock Exchange, The International Stock Exchange or any
other stock exchange located outside the United States and such stock exchange
so requires, the Company shall maintain a Paying Agent for the Securities of
such series in Luxembourg, London or any other required city located outside the
United States, as the case may be, so long as the Securities of such series are
listed on such exchange; and (iii) subject to any laws or regulations applicable
thereto, in a Place of Payment for such series located outside the United States
an office or agency where any Securities of such series may be surrendered for
registration of transfer, where Securities of such series may be surrendered for
exchange and where notices and demands to or on the Company in respect of the
Securities of such series and this Indenture may be served. The Company shall
give prompt written notice to the Trustee of the location, and any change in the
location, of each such office or agency. If at any time the Company fails to
maintain any such required office or agency or fails to furnish the Trustee with
the address thereof, such presentations, surrenders, notices and demands may be
made or served at the Corporate Trust Office of the Trustee, except that Bearer
Securities of such series and the related coupons may be presented and
surrendered for payment (including payment of any Additional Amounts payable on
Bearer Securities of such series pursuant to Section 1010) at the offices
specified in the Security, in London, England, and the Company hereby appoints
the same as its agent to receive all such presentations, surrenders, notices and
demands, and the Company hereby appoints the Trustee as its agent to receive all
such presentations, surrenders, notices and demands.

     Unless otherwise specified with respect to any Securities pursuant to
Section 301, no payment of the principal of (or premium or Make-Whole Amount, if
any, on) or interest or Additional Amounts, if any, on Bearer Securities shall
be made at any office or agency of the Company in the United States or by check
mailed to any address in the United States or by transfer to an account
maintained with a bank located in the United States; provided, however, that, if
                                                     --------  -------
the Securities of a series are payable in Dollars, payment of the principal of
(and premium and Make-Whole Amount, if any, on) and interest and Additional
Amounts; if any, on any Bearer Security shall be made at the office of the
Company's Paying Agent in the city of Boston, Massachusetts if (but only if)
payment in Dollars of the full amount of such principal, premium, Make-Whole
Amount, interest or Additional Amounts, as the case may be, at all offices or
agencies outside the United States maintained for the purpose by the Company in
accordance with this Indenture, is illegal or effectively precluded by exchange
controls or other similar restrictions.

     The Company may from time to time designate one or more other offices or
agencies where the Securities of one or more series and any coupons appertaining
thereto may be presented or surrendered for any or all of such purposes, and may
from time to time rescind such designations; provided, however, that no such
                                             --------  -------              
designation or rescission shall in any manner relieve the Company of its
obligation to maintain an office or agency in accordance with the requirements
set forth above for Securities of any series for such purposes. The Company
shall 

                                       63
<PAGE>
 
give prompt written notice to the Trustee of any such designation or rescission
and of any change in the location of any such other office or agency. Unless
otherwise specified with respect to any Securities pursuant to Section 301, the
Company hereby designates as a Place of Payment for each series of Securities
the office or agency of the Company in the city of Boston, Massachusetts, and
initially appoints the Trustee at its Corporate Trust Office as Paying Agent in
such city and as its agent to receive all such presentations, surrenders,
notices and demands.

     Unless otherwise specified with respect to any Securities pursuant to
Section 301, if and so long as the Securities of any series (i) are denominated
in a Foreign Currency or (ii) may be payable in a Foreign Currency, or so long
as it is required under any other provision of the Indenture, then the Company
shall maintain with respect to each such series of Securities, or as so
required, at least one exchange rate agent.

     SECTION 1003. Money for Securities Payments to Be Held in Trust. If the
                   -------------------------------------------------        
Company at any time acts as its own Paying Agent with respect to any series of
any Securities and any coupons appertaining thereto, it shall, on or before each
due date of the principal of (and premium or Make-Whole Amount, if any, on) or
interest or Additional Amounts, if any, on any of the Securities of such series,
segregate and hold in trust for the benefit of the Persons entitled thereto a
sum 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)
sufficient to pay the principal (and premium or Make-Whole Amount, if any) or
interest or Additional Amounts, if any, so becoming due until such sums shall be
paid to such Persons or otherwise disposed of as herein provided, and shall
promptly notify the Trustee of its action or failure so to act.

     Whenever the Company has one or more Paying Agents for any series of
Securities and any coupons appertaining thereto, it shall, on or before each due
date of the principal of (and premium or Make-Whole Amount, if any, on) or
interest or Additional Amounts, if any, on any Securities of such series,
deposit with a Paying Agent a sum (in the currency or currencies, currency unit
or units or composite currency or currencies described in the preceding
paragraph) sufficient to pay the principal (and premium or Make-Whole Amount, if
any) or interest or Additional Amounts, if any, so becoming due, such sum to be
held in trust for the benefit of the Persons entitled to such principal,
premium, Make-Whole Amount, interest or Additional Amounts and (unless such
Paying Agent is the Trustee) the Company shall promptly notify the Trustee of
its action or failure so to act.

     The Company shall cause each Paying Agent other than the Trustee to execute
and deliver to the Trustee an instrument in which such Paying Agent shall agree
with the Trustee, subject to the provisions of this Section, that such Paying
Agent shall:

          (1) hold all sums held by it for the payment of principal of (and
     premium or Make-Whole Amount, if any, on) or interest or Additional
     Amounts, if any, on Securities in trust for the benefit of the Persons
     entitled thereto until such sums shall be paid to such Persons or otherwise
     disposed of as herein provided;

                                       64
<PAGE>
 
          (2) give the Trustee notice of any default by the Company (or any
     other obligor on the Securities) in the making of any such payment of
     principal (and premium or Make-Whole Amount, if any) or interest or
     Additional Amounts, if any; and

          (3) at any time during the continuance of any such default, on the
     written request of the Trustee, forthwith pay to the Trustee all sums so
     held in trust by such Paying Agent.

     The Company may at any time, for the purpose of obtaining the satisfaction
and discharge of this Indenture or for any other purpose, pay, or by Company
Order direct any Paying Agent to pay, to the Trustee all sums held in trust by
the Company or such Paying Agent, such sums to be held by the Trustee on the
same trusts as those on which such sums were held by the Company or such Paying
Agent; and, upon such payment by any Paying Agent to the Trustee, such Paying
Agent shall be released from all further liability with respect to such sums.

     Except as otherwise provided in the Securities of any series, any money
deposited with the Trustee or any Paying Agent, or then held by the Company, in
trust for the payment of the principal of (and premium or Make-Whole Amount, if
any, on) or interest or Additional Amounts, if any, on any Security of any
series and remaining unclaimed for two years after such principal (and premium
or Make-Whole Amount, if any) interest or Additional Amounts, if any, has become
due and payable shall be paid to the Company upon Company Request or (if then
held by the Company) shall be discharged from such trust; and the Holder of such
Security shall thereafter, as an unsecured general creditor, look only to the
Company for payment of the principle of (and premium or Make-Whole Amount, if
any, on) and interest and any Additional Amounts, if any, on any Security of
such series, without interest thereon, and all liability of the Trustee or such
Paying Agent with respect to such trust money, and all liability of the Company
as trustee thereof, shall thereupon cease; provided, however, that the Trustee
                                           --------  -------
or such Paying Agent, before being required to make any such repayment, may at
the expense of the Company cause to be published once, in an Authorized
Newspaper, notice that such money remains unclaimed and that, after a date
specified therein, which shall not be less than 30 days from the date of such
publication, any unclaimed balance of such money then remaining will be repaid
to the Company.

     SECTION 1004. Existence. Subject to Article Eight, the Company shall do or
                   ---------                                                   
cause to be done all things necessary to preserve and keep in full force and
effect the existence, rights (charter and statutory) and franchises of the
Company and its Subsidiaries; provided, however, that the Company shall not be
                              --------  -------                               
required to preserve any right or franchise if the Board of Directors determines
that the preservation thereof is no longer desirable in the conduct of the
business of the Company and its Subsidiaries as a whole and that the loss
thereof is not disadvantageous in any material respect to the Holders of
Securities of any series.

     SECTION 1005. Maintenance of Properties. The Company shall cause all of its
                   -------------------------                                    
properties used or useful in the conduct of its business or the business of any
Subsidiary to be 

                                       65
<PAGE>
 
maintained and kept in good condition, repair and working order and supplied
with all necessary equipment and shall cause to be made all necessary repairs,
renewals, replacements, betterments and improvements thereof, all as in the
judgment of the Company may be necessary so that the business carried on in
connection therewith may be properly and advantageously conducted at all times;
provided, however, that nothing in this Section shall prevent the Company or any
- --------  -------
Subsidiary from selling or otherwise disposing for value its properties in the
ordinary course of its business.

     SECTION 1006. Insurance. The Company shall, and shall cause each of its
                   ---------                                                
Subsidiaries to, keep all of its insurable properties insured against loss or
damage at least equal to their then full insurable value with financially sound
and reputable insurance companies.

     SECTION 1007. Payment of Taxes and Other Claims. The Company shall pay or
                   ---------------------------------                          
discharge or cause to be paid or discharged, before the same become delinquent,
(i) all taxes, assessments and governmental charges levied or imposed on the
Company or any Subsidiary or on the income, profits or property of the Company
or any Subsidiary and (ii) all lawful claims for labor, materials and supplies
which, if unpaid, might by law become a lien on the property of the Company or
any Subsidiary; provided, however, that the Company shall not be required to pay
                --------  -------                                               
or discharge or cause to be paid or discharged any such tax, assessment, charge
or claim whose amount, applicability or validity is being contested in good
faith by appropriate proceedings.

     SECTION 1008. Reports.
                   ------- 

          (1) So long as any Securities of any series are outstanding, the
     Company will furnish to Holders of Securities of such series, within 45
     days of the filing thereof with the Commission copies of the annual reports
     on Form 10-K, within 20 days of the filing thereof with the Commission
     copies of the quarterly reports on Form 10-Q and within 15 days after the
     filing thereof with the Commission copies of the other information,
     documents and other reports (or copies of such portions of any of the
     foregoing as the Commission may by rules and regulations prescribe) that
     the Company is required to file with the Commission pursuant to Section 13
     or 15(d) of the Exchange Act provided that the Company's obligation to
     furnish such reports will be deemed satisfied to the extent the Company
     complies with Section 1008(2) and (4). All obligors on the Securities shall
     comply with the provisions of Section 314(a) of the Trust Indenture Act.
     Notwithstanding that the Company may not be subject to the reporting
     requirements of Section 13 or 15(d) of the Exchange Act or otherwise report
     on an annual and quarterly basis on forms provided for such annual and
     quarterly reporting pursuant to rules and regulations promulgated by the
     Commission, the Company shall file with the Commission and provide to the
     Trustee (i)  within 135 days after the end of each fiscal year, annual
     reports on Form 10-K (or any successor or comparable form) containing the
     information required to be contained therein (or required in such successor
     or comparable form), including a "Management's Discussion and Analysis of
     Financial Condition and Results of Operations" and a report thereon by the
     Company's certified public accountants; (ii) 

                                       66
<PAGE>
 
     within 65 days after the end of each of the first three fiscal quarters of
     each fiscal year, reports on Form 10-Q (or any successor or comparable
     form) containing the information required to be contained therein (or
     required in any successor or comparable form), including a "Management's
     Discussion and Analysis of Financial Condition and Results of Operations";
     and (iii) promptly from time to time after the occurrence of an event
     required to be therein reported, such other reports on Form 8-K (or any
     successor or comparable form) containing the information required to be
     contained therein (or required in any successor or comparable form);
     provided, however, that the Company shall not be in default of the
     provisions of this Section 1008(1) for any failure to file reports with the
     Commission solely by the refusal of the Commission to accept the same for
     filing. Each of the financial statements contained in such reports shall be
     prepared in accordance with GAAP.

          (2) The Company's obligations under this Section 1008 will be deemed
     satisfied to the extent the Company provides the Trustee with a sufficient
     number of annual reports, information, documents and reports for the
     Trustee to provide or make available such annual reports, information,
     documents and reports to the Holders.  The Trustee, at the Company's
     expense and written direction, shall promptly mail copies of all such
     annual reports, information, documents and other reports provided to the
     Trustee pursuant to Section 1008(1) hereof to the Holders at their
     addresses appearing in the Security Register.

          (3) Whether or not required by the rules and regulations of the
     Commission, the Company shall file a copy of all such information and
     reports with the Commission for public availability and make such
     information available to securities analysts and prospective investors upon
     request.

          (4) The Company shall provide the Trustee with a sufficient number of
     copies of all reports and other documents and information which the Trustee
     may be required to deliver to the Holders under this Section 1008.

          (5) Delivery of such reports, information and documents to the Trustee
     is for informational purposes only and the Trustee's receipt of such shall
     not constitute constructive notice of any information contained therein or
     determinable from information contained therein, including the Company's
     compliance with any of its covenants hereunder (as to which the Trustee is
     entitled to rely exclusively on Officers' Certificates).

     SECTION 1009. Statement as to Compliance. The Company shall deliver to the
                   --------------------------                                  
Trustee, within 135 days after the end of each fiscal year, a brief certificate
from the principal executive officer, principal financial officer or principal
accounting officer as to his or her knowledge of the Company's compliance with
all conditions and covenants under this Indenture verified in the case of
conditions precedent compliance with which is subject to verification by
accountants by the certificate or opinion of an accountant and, in the event of
any noncompliance, specifying 

                                       67
<PAGE>
 
such noncompliance and the nature and status thereof. For purposes of this
Section 1009, such compliance shall be determined without regard to any period
of grace or requirement of notice provided under this Indenture.

     SECTION 1010. Additional Amounts. If any Securities of a series provide for
                   ------------------                                           
the payment of Additional Amounts, the Company covenants and agrees for the
benefit of the Holders of Securities of such series that it shall pay to the
Holder of any Security of such series or any coupon appertaining thereto
Additional Amounts as may be specified as contemplated by Section 301. Whenever
in this Indenture there is mentioned, in any context except in the case of
clause (1) of Section 502, the payment of the principal of or of any premium,
Make-Whole Amount or interest on, or in respect of, any Security of any series
or payment of any coupon or the net proceeds received on the sale or exchange of
any Security of any series, such mention shall be deemed to include mention of
the payment of Additional Amounts provided by the terms of such series
established pursuant to Section 301 to the extent that, in such context,
Additional Amounts are, were or would be payable in respect thereof pursuant to
such terms and express mention of the payment of Additional Amounts (if
applicable) in any provisions hereof shall not be construed as excluding
Additional Amounts in those provisions hereof in which such express mention is
not made.

     Except as otherwise specified as contemplated by Section 301, if the
Securities of a series provide for the payment of Additional Amounts, at least
10 days prior to the first Interest Payment Date with respect to Securities of
such series (or if the Securities of such series will not bear interest prior to
Maturity, the first day on which a payment of principal and any premium is
made), and at least 10 days prior to each date of payment of principal and any
premium or Make-Whole Amount or interest, if there has been any change with
respect to the matters set forth in the below-mentioned Company Certificate, the
Company shall furnish the Trustee and the principal Paying Agent or Paying
Agents, if other than the Trustee, with a Company Certificate instructing the
Trustee and such Paying Agent or Paying Agents whether such payment of principal
of and any premium or Make-Whole Amount or interest on the Securities of such
series shall be made to Holders of Securities of such series or any coupons
appertaining thereto who are not United States persons without withholding for
or on account of any tax, assessment or other governmental charge described in
the Securities of or within the series. If any such withholding is required,
then such Company Certificate shall specify by country the amount, if any,
required to be withheld on such payments to such Holders of Securities of such
series or any coupons appertaining thereto and the Company shall pay to the
Trustee or such Paying Agent the Additional Amounts required by the terms of
such Securities. In the event that the Trustee or any Paying Agent, as the case
may be, shall not so receive the above-mentioned certificate, then the Trustee
or such Paying Agent shall be entitled (i) to assume that no such withholding or
deduction is required with respect to any payment of principal or interest with
respect to any Securities of such series or any coupons appertaining thereto
until it has received a certificate advising otherwise and (ii) to make all
payments of principal and interest with respect to the Securities of such series
or any coupons appertaining thereto without withholding or deductions until
otherwise advised. The Company covenants to indemnify the Trustee and any Paying
Agent for, and to hold them harmless against, any loss, liability or 

                                       68
<PAGE>
 
expense reasonably incurred without negligence or bad faith on their part
arising out of or in connection with actions taken or omitted by any of them or
in reliance on any Company Certificate furnished pursuant to this Section or in
reliance on the Company's not furnishing such a Company Certificate.

     SECTION 1011. Waiver of Certain Covenants. The Company may omit in any
                   ---------------------------                             
particular instance to comply with any term, provision or condition set forth in
Sections 1004 to 1008, inclusive, and with any other term, provision or
condition with respect to the Securities of any series specified in accordance
with Section 301 (except any such term, provision or condition which could not
be amended without the consent of all Holders of Securities of such series
pursuant to Section 902), if before or after the time for such compliance the
Holders of at least a majority in principal amount of all outstanding Securities
of such series, by Act of such Holders, either waive such compliance in such
instance or generally waive compliance with such covenant or condition, but no
such waiver shall extend to or affect such covenant or condition except to the
extent so expressly waived, and, until such waiver shall become effective, the
obligations of the Company and the duties of the Trustee in respect of any such
term, provision or condition shall remain in full force and effect.

     SECTION 1012.  Seniority of Securities.  The Company covenants and agrees
                    -----------------------                                   
that the indebtedness represented by the Securities is hereby expressly made
senior to any indebtedness represented by any securities now outstanding or ever
issued or to be issued pursuant to the Indenture dated ___________, 1998 between
the Company and State Street Bank and Trust Company, as trustee, in respect of
subordinated debt securities or any amendments or supplements thereto.

                                ARTICLE ELEVEN
                           REDEMPTION OF SECURITIES

     SECTION 1101. Applicability of Article. Securities of any series which are
                   ------------------------                                    
redeemable before their Stated Maturity shall be redeemable in accordance with
their terms and (except as otherwise specified as contemplated by Section 301
for Securities of any series) in accordance with this Article.

     SECTION 1102. Election to Redeem; Notice to Trustee. The election of the
                   -------------------------------------                     
Company to redeem any Securities shall be evidenced by or pursuant to a Board
Resolution. In case of any redemption at the election of the Company of less
than all of the Securities of any series, the Company shall, at least 30 days
prior to the giving of the notice of redemption in Section 1104 (unless a
shorter notice shall be satisfactory to the Trustee), notify the Trustee of such
Redemption Date and of the principal amount of Securities of such series to be
redeemed. In the case of any redemption of Securities prior to the expiration of
any restriction on such redemption provided in the terms of such Securities or
elsewhere in this Indenture, the Company shall furnish the Trustee with a
Company Certificate evidencing compliance with such restriction.

                                       69
<PAGE>
 
     SECTION 1103. Selection by Trustee of Securities to Be Redeemed. If less
                   -------------------------------------------------         
than all the Securities of any series issued on the same day with the same terms
are to be redeemed, the particular Securities to be redeemed shall be selected
not more than 60 days prior to the Redemption Date by the Trustee, from the
Outstanding Securities of such series issued on such date with the same terms
not previously called for redemption, by such method as the Trustee deems fair
and appropriate and which may provide for the selection for redemption of
portions (equal to the minimum authorized denomination for Securities of such
series or any integral multiple thereof) of the principal amount of Securities
of such series of a denomination larger than the minimum authorized denomination
for Securities of such series.

     The Trustee shall promptly notify the Company and the Security Registrar
(if other than itself) in writing of the Securities selected for redemption and,
in the case of any Securities selected for partial redemption, the principal
amount thereof to be redeemed.

     For all purposes of this Indenture, unless the context otherwise requires,
all provisions relating to the redemption of Securities shall relate, in the
case of any Security redeemed or to be redeemed only in part, to the portion of
the principal amount of such Security which has been or is to be redeemed.

     SECTION 1104. Notice of Redemption. Notice of redemption shall be given in
                   --------------------                                        
the manner provided in Section 106, not less than 30 days nor more than 60 days
prior to the Redemption Date, unless a shorter period is specified by the terms
of such series established pursuant to Section 301, to each Holder of Securities
to be redeemed, but failure to give such notice in the manner herein provided to
the Holder of any Security designated for redemption as a whole or in part, or
any defect in the notice to any such Holder, shall not affect the validity of
the proceedings for the redemption of any other such Security or portion
thereof.

     Any notice which is mailed to the Holders of Registered Securities in the
manner herein provided shall be conclusively presumed to have been duly given,
whether or not the Holder receives the notice.

     All notices of redemption shall state:

          (1) the Redemption Date;

          (2) the Redemption Price, accrued interest to the Redemption Date
     payable as provided in Section 1106, if any, and Additional Amounts, if
     any;

          (3) if less than all Outstanding Securities of any series are to be
     redeemed, the identification (and, in the case of partial redemption, the
     principal amount) of the particular Security or Securities to be redeemed;

          (4) in case any Security is to be redeemed in part only, the notice
     which relates to such Security shall state that on and after the Redemption
     Date, on surrender 

                                       70
<PAGE>
 
     of such Security, the holder will receive, without a charge, a new Security
     or Securities of authorized denominations for the principal amount thereof
     remaining unredeemed;

          (5)  that on the Redemption Date, the Redemption Price and accrued
     interest to the Redemption Date payable as provided in Section 1106, if
     any, will become due and payable on each such Security, or the portion
     thereof, to be redeemed and, if applicable, that interest thereon shall
     cease to accrue on and after such date;

          (6)  the Place or Places of Payment where such Securities, together in
     the case of Bearer Securities with all coupons appertaining thereto, if
     any, maturing after the Redemption Date, are to be surrendered for payment
     of the Redemption Price and accrued interest, if any;

          (7)  that the redemption is for a sinking fund, if such is the case;

          (8)  that, unless otherwise specified in such notice, Bearer
     Securities of any series, if any, surrendered for redemption must be
     accompanied by all coupons appertaining thereto maturing subsequent to the
     date fixed for redemption or the amount of any such missing coupon or
     coupons will be deducted from the Redemption Price, unless security or
     indemnity satisfactory to the Company, the Trustee for such series and any
     Paying Agent is furnished;

          (9)  if Bearer Securities of any series are to be redeemed and any
     Registered Securities of such series are not to be redeemed, and if such
     Bearer Securities may be exchanged for Registered Securities not subject to
     the redemption on this Redemption Date pursuant to Section 305 or
     otherwise, the last date, as determined by the Company, on which such
     exchanges may be made; and

          (10) the CUSIP number of such Security, if any, provided that neither
                                                          --------             
     the Company nor the Trustee shall have any responsibility for any such
     CUSIP number.

     Notice of redemption of Securities to be redeemed shall be given by the
Company or, at the Company's request, by the Trustee in the name and at the
expense of the Company.

     SECTION 1105. Deposit of Redemption Price. At least one Business Day prior
                   ---------------------------                                 
to any Redemption Date, the Company shall deposit with the Trustee or with a
Paying Agent (or, if the Company is acting as its own Paying Agent, which it may
not do in the case of a sinking fund payment under Article Twelve, segregate and
hold in trust as provided in Section 1003) 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) sufficient to pay on
the Redemption Date the Redemption Price of, and (except if the Redemption Date
is an Interest Payment Date) accrued interest on, all the Securities or portions
thereof which are to be redeemed on such date.

                                       71
<PAGE>
 
     SECTION 1106. Securities Payable on Redemption Date. Notice of redemption
                   -------------------------------------                      
having been given as provided above, the Securities so to be redeemed shall, on
the Redemption Date, become due and payable at the Redemption Price therein
specified 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) (together with accrued interest, if any, to the Redemption Date),
and from and after such date (unless the Company defaults in the payment of the
Redemption Price and accrued interest) such Securities shall, if the same were
interest-bearing, cease to bear interest and the coupons for such interest
appertaining to any Bearer Securities so to be redeemed, except to the extent
provided below, shall be void. Upon surrender of any such Security for
redemption in accordance with such notice, together with any coupons
appertaining thereto maturing after the Redemption Date, such Security shall be
paid by the Company at the Redemption Price, together with accrued interest, if
any, to the Redemption Date; provided, however, that installments of interest on
                             --------  -------
Bearer Securities whose Stated Maturity is on or prior to the Redemption Date
shall be payable only at an office or agency located outside the United States
(except as otherwise provided in Section 1002) and, unless otherwise specified
as contemplated by Section 301, only upon presentation and surrender of coupons
for such interest; and provided, further, that, installments of interest on
                       --------  -------
Registered Securities whose Stated Maturity is on or prior to the Redemption
Date shall be payable to the Holders of such Securities, or one or more
Predecessor Securities, registered as such at the close of business on the
relevant Record Dates according to their terms and the provisions of Section
307.

     If any Bearer Security surrendered for redemption is not accompanied by all
coupons appertaining thereto maturing after the Redemption Date, such Security
may be paid after deducting from the Redemption Price an amount equal to the
face amount of all such missing 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 surrenders to
the Trustee or any Paying Agent any such missing coupon in respect of which a
deduction has been made from the Redemption Price, such Holder shall be entitled
to receive the amount so deducted; provided, however, that interest represented
                                   --------  -------                           
by a coupon shall be payable only at an office or agency located outside the
United States (except as otherwise provided in Section 1002) and, unless
otherwise specified as contemplated by Section 301, only upon presentation and
surrender of such coupon.

     If any Security called for redemption is not so paid upon surrender thereof
for redemption, the principal (and premium or Make-Whole Amount, if any) shall,
until paid, bear interest from the Redemption Date at the rate borne by the
Security.

     SECTION 1107. Securities Redeemed in Part. Any Security which is to be
                   ---------------------------                             
redeemed only in part (pursuant to the provisions of this Article or of Article
Twelve) shall be surrendered at a Place of Payment therefor (with, if the
Company or the Trustee so requires, due endorsement by, or a written instrument
of transfer in form satisfactory to the Company and the Trustee duly executed
by, the Holder thereof or his attorney duly authorized in writing and

                                       72
<PAGE>
 
accompanied by appropriate evidence of genuineness and authority) and the
Company shall execute and the Trustee shall authenticate and deliver to the
Holder of such Security without service charge a new Security or Securities of
the same series, of any authorized denomination as requested by such Holder in
aggregate principal amount equal to and in exchange for the unredeemed portion
of the principal of the Security so surrendered.

                                ARTICLE TWELVE
                                 SINKING FUNDS

     SECTION 1201. Applicability of Article. The provisions of this Article
                   ------------------------                                
shall be applicable to any sinking fund for the retirement of Securities of a
series except as otherwise specified as contemplated by Section 301 for
Securities of such series.

     The minimum amount of any sinking fund payment provided for by the terms of
Securities of any series is herein referred to as a "mandatory sinking fund
                                                     ----------------------
payment," and any payment in excess of such minimum amount provided for by the
- -------                                                                       
terms of such Securities of any series is herein referred to as an "optional
                                                                    --------
sinking fund payment." If provided for by the terms of any Securities of any
- --------------------                                                        
series, the cash amount of any mandatory sinking fund payment may be subject to
reduction as provided in Section 1202. Each sinking fund payment shall be
applied to the redemption of Securities of any series as provided for by the
terms of Securities of such series.

     SECTION 1202. Satisfaction of Sinking Fund Payments with Securities. The
                   -----------------------------------------------------     
Company may, in satisfaction of all or any part of any mandatory sinking fund
with respect to the Securities of a series, (i) deliver Outstanding Securities
of such series (other than any previously called for redemption), together in
the case of any Bearer Securities of such series with all unmatured coupons
appertaining thereto, and (ii) apply as a credit Securities of such series which
have been redeemed either at the election of the Company pursuant to the terms
of such Securities or through the application of permitted optional sinking fund
payments pursuant to the terms of such Securities, as provided for by the terms
of such Securities, or which have otherwise been acquired by the Company,
provided that such Securities so delivered or applied as a credit have not been
- --------                                                                       
previously so credited. Such Securities shall be received and credited for such
purpose by the Trustee at the applicable Redemption Price specified in such
Securities for redemption through operation of the sinking fund and the amount
of such mandatory sinking fund payment shall be reduced accordingly.

     SECTION 1203. Redemption of Securities for Sinking Fund. Not less than 60
                   -----------------------------------------                  
days prior to each sinking fund payment date for Securities of any series, the
Company shall deliver to the Trustee a Company Certificate specifying the amount
of the next ensuing mandatory sinking fund payment for such series pursuant to
the terms of such series, the portion thereof, if any, which is to be satisfied
by payment of cash 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) and the portion thereof, if any, which is to be
satisfied by delivering and crediting Securities of such series

                                       73
<PAGE>
 
pursuant to Section 1202, and the optional amount, if any, to be added in cash
to the next ensuing mandatory sinking fund payment, and shall also deliver to
the Trustee any Securities to be so delivered and credited. If such Company
Certificate specifies an optional amount to be added in cash to the next ensuing
mandatory sinking fund payment, the Company shall thereupon be obligated to pay
the amount therein specified. Not less than 30 days before each such sinking
fund payment date the Trustee shall select the Securities to be redeemed on such
sinking fund payment date in the manner specified in Section 1103 and cause
notice of the redemption thereof to be given in the name of and at the expense
of the Company in the manner provided in Section 1104. Such notice having been
duly given, the redemption of such Securities shall be made upon the terms and
in the manner stated in Sections 1106 and 1107.

                               ARTICLE THIRTEEN
                      REPAYMENT AT THE OPTION OF HOLDERS

     SECTION 1301. Applicability of Article. Repayment of Securities of any
                   ------------------------                                
series before their Stated Maturity at the option of Holders thereof shall be
made in accordance with the terms of such Securities, if any, and (except as
otherwise specified by the terms of such series established pursuant to Section
301) in accordance with this Article.

     SECTION 1302. Repayment of Securities. Securities of any series subject to
                   -----------------------                                     
repayment in whole or in part at the option of the Holders thereof will, unless
otherwise provided in the terms of such Securities, be repaid at a price equal
to the principal amount thereof, together with interest, if any, thereon accrued
to the Repayment Date specified in or pursuant to the terms of such Securities.
The Company covenants that at least one Business Day prior to the Repayment Date
it shall deposit with the Trustee or with a Paying Agent (or, if the Company is
acting as it own Paying Agent, segregate and hold in trust as provided in
Section 1003) 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) sufficient to pay the principal (or, if so provided
by the terms of the Securities of any series, a percentage of the principal) of,
and (except if the Repayment Date is an Interest Payment Date) accrued interest
on, all the Securities or portions thereof, as the case may be, to be repaid on
such date.

     SECTION 1303. Exercise of Option. Securities of any series subject to
                   ------------------                                     
repayment at the option of the Holders thereof will contain an "Option to Elect
Repayment" form on the reverse of such Securities. In order for any Security to
be repaid at the option of the Holder, the Trustee must receive at the Place of
Payment therefor specified in the terms of such Security (or at such other place
or places of which the Company shall from time to time notify the Holders of
such Securities), not earlier than 60 days nor later than 30 days prior to the
Repayment Date, (i) the Security so providing for such repayment together with
the "Option to Elect Repayment" form on the reverse thereof duly completed by
the Holder (or by the Holder's attorney duly authorized in writing) or (ii) a
telegram, telex, facsimile transmission or a letter from a member of a national
securities exchange, or the National Association of Securities Dealers, Inc., or
a commercial bank or trust company in the United States setting forth the name
of the Holder of

                                       74
<PAGE>
 
the Security, the principal amount of the Security, the principal amount of the
Security to be repaid, the CUSIP number, if any, or a description of the tenor
and terms of the Security, a statement that the option to elect repayment is
being exercised thereby and a guarantee that the Security to be repaid, together
with the duly completed form entitled "Option to Elect Repayment" on the reverse
of the Security, will be received by the Trustee not later than the fifth
Business Day after the date of such telegram, telex, facsimile transmission or
letter; provided, however, that such telegram, telex, facsimile transmission or
        --------  -------
letter shall only be effective if such Security and form duly completed are
received by the Trustee by such fifth Business Day. If less than the entire
principal amount of such Security is to be repaid in accordance with the terms
of such Security, the principal amount of such Security to be repaid, in
increments of the minimum denomination for Securities of such series, and the
denomination or denominations of the Security or Securities to be issued to the
Holder for the portion of the principal amount of such Security surrendered
which is not to be repaid, must be specified. The principal amount of any
Security providing for prepayment at the option of the Holder thereof may not be
repaid in part if, following such repayment, the unpaid principal amount of such
Security would be less than the minimum authorized denomination of Securities of
or within the series of which such Security to be repaid is a part. Except as
otherwise may be provided by the terms of any Security providing for repayment
at the option of the Holder thereof, exercise of the repayment option by the
Holder shall be irrevocable unless waived by the Company.

     SECTION 1304. When Securities Presented for Repayment Become Due and
                   ------------------------------------------------------
Payable. If Securities of any series providing for repayment at the option of
- -------                                                                      
the Holders thereof have been surrendered as provided in this Article and as
provided by or pursuant to the terms of such Securities, such Securities or the
portions thereof, as the case may be, to be repaid shall become due and payable
and shall be paid by the Company on the Repayment Date therein specified, and on
and after such Repayment Date (unless the Company defaults in the payment of
such Securities on such Repayment Date) such Securities shall, if the same were
interest-bearing, cease to bear interest and the coupons for such interest
appertaining to any Bearer Securities so to be repaid, except to the extent
provided below, shall be void. Upon surrender of any such Security for repayment
in accordance with such provisions, together with any coupons appertaining
thereto maturing after the Repayment Date, the principal amount of such security
so to be repaid shall be paid by the Company, together with accrued interest, if
any, to the Repayment Date; provided, however, that coupons whose Stated
                            --------  -------                           
Maturity is on or prior to the Repayment Date shall be payable only at an office
or agency located outside the United States (except as otherwise provided in
Section 1002) and, unless otherwise specified pursuant to Section 301, only upon
presentation and surrender of such coupons; and provided, further, that, in the
                                                --------  -------              
case of Registered Securities, installments of interest, if any, whose Stated
Maturity is on or prior to the Repayment Date shall be payable (but without
interest thereon, unless the Company defaults in the payment thereof) to the
Holders of such Securities, or one or more Predecessor Securities, registered as
such at the close of business on the relevant Record Dates according to their
terms and the provisions of Section 307.

     If any Bearer Security surrendered for repayment is not accompanied by all
coupons appertaining thereto maturing after the Repayment Date, such Security
may be paid after 

                                       75
<PAGE>
 
deducting from the amount payable therefor as provided in Section 1302 an amount
equal to the face amount of all such missing 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
surrenders to the Trustee or any Paying Agent any such missing coupon in respect
of which a deduction has been made as provided in the preceding sentence, such
Holder shall be entitled to receive the amount so deducted; provided, however,
                                                            --------  -------
that interest represented by a coupon shall be payable only at an office or
agency located outside the United States (except as otherwise provided in
Section 1002) and, unless otherwise specified as contemplated by Section 301,
only upon presentation and surrender of such coupon.

     If the principal amount of any Security surrendered for repayment shall not
be so repaid upon surrender thereof, such principal amount (together with
interest, if any, thereon accrued to such Repayment Date) shall, until paid,
bear interest from the Repayment Date at the rate of interest or Yield to
Maturity (in the case of Original Issue Discount Securities) set forth in such
Security.

     SECTION 1305. Securities Repaid in Part. Upon surrender of any Registered
                   -------------------------                                  
Security which is to be repaid in part only, the Company shall execute and the
Trustee shall authenticate and deliver to the Holder of such Security, without
service charge and at the expense of the Company, a new Registered Security or
Securities of the same series, of any authorized denomination specified by the
Holder, in an aggregate principal amount equal to and in exchange for the
portion of the principal of such Security so surrendered which is not to be
repaid.

                               ARTICLE FOURTEEN
                      DEFEASANCE AND COVENANT DEFEASANCE

     SECTION 1401. Applicability of Article; Company's Option to Effect
                   ----------------------------------------------------
Defeasance or Covenant Defeasance. If, pursuant to Section 301, provision is
- ---------------------------------                                           
made for either or both of (i) defeasance of the Securities of or within a
series under Section 1402 or (ii) covenant defeasance of the Securities of or
within a series under Section 1403 to be applicable to the Securities of any
series, then the provisions of such Section or Sections, as the case may be,
together with the other provisions of this Article (with such modifications
thereto as may be specified pursuant to Section 301 with respect to any
Securities), shall be applicable to such Securities and any coupons appertaining
thereto, and the Company may at its option by Board Resolution, at any time,
with respect to such Securities and any coupons appertaining thereto, elect to
defease such Outstanding Securities and any coupons appertaining thereto
pursuant to Section 1402 (if applicable) or Section 1403 (if applicable) upon
compliance with the conditions set forth below in this Article.

     SECTION 1402. Defeasance and Discharge. Upon the Company's exercise of the
                   ------------------------                                    
above option applicable to this Section with respect to any Securities of or
within a series, the Company shall be deemed to have been discharged from its
obligations with respect to such Outstanding Securities and any coupons
appertaining thereto on the date the conditions set forth 

                                       76
<PAGE>
 
in Section 1404 are satisfied (hereinafter, "defeasance"). For this purpose,
                                             ----------       
such defeasance means that the Company shall be deemed to have paid and
discharged the entire indebtedness represented by such Outstanding Securities
and any coupons appertaining thereto, which shall thereafter be deemed
"Outstanding" only for the purposes of Section 1405 and the other Sections of
this Indenture referred to in clauses (i) and (ii) below, and to have satisfied
all of its other obligations under such Securities and any coupons appertaining
thereto and this Indenture insofar as such Securities and any coupons
appertaining thereto are concerned (and the Trustee, at the expense of the
Company, shall execute proper instruments acknowledging the same), except for
the following which shall survive until otherwise terminated or discharged
hereunder: (i) the rights of Holders of such Outstanding Securities and any
coupons appertaining thereto to receive, solely from the trust fund described in
Section 1404 and as more fully set forth in such Section, payments in respect of
the principal of (and premium or Make-Whole Amount, if any, on) and interest and
Additional Amounts, if any, on such Securities and any coupons appertaining
thereto when such payments are due; (ii) the Company's obligations with respect
to such Securities under Sections 305, 306, 1002 and 1003 and with respect to
the payment of Additional Amounts, if any, on such Securities as contemplated by
Section 1010; (iii) the rights, powers, trusts, duties and immunities of the
Trustee hereunder; and (iv) this Article. Subject to compliance with this
Article Fourteen, the Company may exercise its option under this Section
notwithstanding the prior exercise of its option under Section 1403 with respect
to such Securities and any coupons appertaining thereto.

     SECTION 1403. Covenant Defeasance. Upon the Company's exercise of the above
                   -------------------                                          
option applicable to this Section with respect to any Securities of or within a
series, the Company shall be released from its obligations under Sections 1004
to 1008, inclusive, and, if specified pursuant to Section 301, its obligations
under any other covenant, with respect to such Outstanding Securities and any
coupons appertaining thereto on and after the date the conditions set forth in
Section 1404 are satisfied (hereinafter, "covenant defeasance"), and such
                                          -------------------            
Securities and any coupons appertaining thereto shall thereafter be deemed not
"Outstanding" for the purposes of any direction, waiver, consent or declaration
or Act of Holders (and the consequences of any thereof) in connection with
Sections 1004 to 1008, inclusive, or such other covenant, but shall continue to
be deemed "Outstanding" for all other purposes hereunder. For this purpose, such
covenant defeasance means that, with respect to such Outstanding Securities and
any coupons appertaining thereto, the Company may omit to comply with and shall
have no liability in respect of any term, condition or limitation set forth in
any such Section or such other covenant, whether directly or indirectly, by
reason of any reference elsewhere herein to any such Section or such other
covenant or by reason of reference in any such Section or such other covenant to
any other provision herein or in any other document and such omission to comply
shall not constitute a default or an Event of Default under clause (4) or (9) of
Section 501 or otherwise, as the case may be, but, except as specified above,
the remainder of this Indenture and such Securities and any coupons appertaining
thereto shall be unaffected thereby.

     SECTION 1404. Conditions to Defeasance or Covenant Defeasance. The
                   -----------------------------------------------     
following shall be the conditions to application of Section 1402 or Section 1403
to any Outstanding Securities of or within a series and any coupons appertaining
thereto:

                                       77
<PAGE>
 
          (a) The Company has irrevocably deposited or caused to be deposited
     with the Trustee (or another trustee satisfying the requirements of Section
     607 who shall agree to comply with the provisions of this Article Fourteen
     applicable to it) funds in trust for the purpose of making the following
     payments, specifically pledged as security for, and dedicated solely to,
     the benefit of the Holders of such Securities and any coupons appertaining
     thereto: (i) an amount in such currency or currencies, currency unit or
     units or composite currency or currencies in which such Securities and any
     coupons appertaining thereto are then specified as payable at Stated
     Maturity, or (ii) Government Obligations applicable to such Securities and
     any coupons appertaining thereto (determined on the basis of the currency
     or currencies, currency unit or units or composite currency or currencies
     in which such Securities and any coupons appertaining thereto are then
     specified as payable at Stated Maturity) which through the scheduled
     payment of principal and interest in respect thereof in accordance with
     their terms will provide, not later than one day before the due date of any
     payment of principal of (and premium or Make-Whole Amount, if any, on) and
     interest and Additional Amounts, if any, on such Securities and any coupons
     appertaining thereto, money in an amount, or (iii) a combination thereof in
     an amount, sufficient, without consideration of any reinvestment of such
     principal and interest, in the opinion of a nationally recognized firm of
     independent public accountants expressed in a written certification thereof
     delivered to the Trustee, to pay and discharge, and which shall be applied
     by the Trustee (or other qualifying trustee) to pay and discharge, (A) the
     principal of (and premium or Make-Whole Amount, if any, on) and interest
     and Additional Amounts, if any, on such Outstanding Securities and any
     coupons appertaining thereto on the Stated Maturity of such principal or
     installment of principal or interest and (B) any mandatory sinking fund
     payments or analogous payments applicable to such Outstanding Securities
     and any coupons appertaining thereto on the day on which such payments are
     due and payable in accordance with the terms of this Indenture and of such
     Securities and any coupons appertaining thereto, provided that the Trustee
                                                      --------       
     has been irrevocably instructed to apply such money or the proceeds of such
     Government Obligations to such payments with respect to such Securities.
     Before such a deposit, the Company may give to the Trustee, in accordance
     with Section 1102, a notice of its election to redeem all or any portion of
     such Outstanding Securities at a future date in accordance with the terms
     of the Securities of such series and Article Eleven, which notice shall be
     irrevocable. Such irrevocable redemption notice, if given, shall be given
     effect in applying the foregoing.

          (b) Such defeasance or covenant defeasance shall not result in a
     breach or violation of, or constitute a default under, this Indenture or
     any other material agreement or instrument to which the Company is a party
     or by which it is bound (and shall not cause the Trustee to have a
     conflicting interest pursuant to Section 310(b) of the Trust Indenture Act
     with respect to any Security of the Company).

          (c) No Event of Default or event which with notice or lapse of time or
     both would become an Event of Default with respect to such Securities and
     any coupons appertaining thereto has occurred and is continuing on the date
     of such deposit or, insofar 

                                       78
<PAGE>
 
     as clauses (7) and (8) of Section 501 are concerned, at any time during the
     period ending on the 91st day after the date of such deposit (it being
     understood that this condition shall not be deemed satisfied until the
     expiration of such period).

          (d) In the case of an election under Section 1402, the Company has
     delivered to the Trustee an Opinion of Counsel stating that (i) the Company
     has received from, or there has been published by, the Internal Revenue
     Service a ruling, or (ii) since the date of execution of this Indenture,
     there has been a change in the applicable Federal income tax law, in either
     case to the effect that, and based thereon such opinion shall confirm that,
     the Holders of such Outstanding Securities and any coupons appertaining
     thereto will not recognize income, gain or loss for Federal income tax
     purposes as a result of such defeasance and will be subject to Federal
     income tax on the same amounts, in the same manner and at the same times as
     would have been the case if such defeasance had not occurred.

          (e) In the case of an election under Section 1403, the Company has
     delivered to the Trustee an Opinion of Counsel to the effect that the
     Holders of such Outstanding Securities and any coupons appertaining thereto
     will not recognize income, gain or loss for Federal income tax purposes as
     a result of such covenant defeasance and will be subject to Federal income
     tax on the same amounts, in the same manner and at the same times as would
     have been the case if such covenant defeasance had not occurred.

          (f) The Company has delivered to the Trustee a Company Certificate and
     an Opinion of Counsel, each stating that all conditions precedent to the
     defeasance under Section 1402 or the covenant defeasance under Section 1403
     (as the case may be) have been complied with and an Opinion of Counsel to
     the effect that either (i) as a result of a deposit pursuant to paragraph
     (a) above and the related exercise of the Company's option under Section
     1402 or Section 1403 (as the case may be), registration is not required
     under the Investment Company Act of 1940, as amended, by the Company with
     respect to the trust funds representing such deposit or by the Trustee for
     such trust funds or (ii) all necessary registrations under such Act have
     been effected.

          (g) After the 91st day following the deposit, the trust funds will not
     be subject to the effect of any applicable bankruptcy, insolvency,
     reorganization or similar laws affecting creditors' rights generally.

          (h) Notwithstanding any other provisions of this Section, such
     defeasance or covenant defeasance shall be effected in compliance with any
     additional or substitute terms, conditions or limitations which may be
     imposed on the Company in connection therewith pursuant to Section 301.

     SECTION 1405. Deposited Money and Government Obligations to Be Held in
                   --------------------------------------------------------
Trust; Other Miscellaneous Provisions. Subject to the provisions of the last
- -------------------------------------                                       
paragraph of Section 1003, all money and Government Obligations (or other
property as may be provided pursuant to 

                                       79
<PAGE>
 
Section 301) (including the proceeds thereof) deposited with the Trustee (or
other qualifying trustee) pursuant to Section 1404 in respect of any Outstanding
Securities of any series and any coupons appertaining thereto shall be held in
trust and applied by the Trustee or such other qualifying trustee, in accordance
with the provisions of such Securities and any coupons appertaining thereto and
this Indenture, to the payment, either directly or through any Paying Agent
(including the Company acting as its own Paying Agent) as the Trustee or such
other qualifying trustee may determine, to the Holders of such Securities and
any coupons appertaining thereto of all sums due and to become due thereon in
respect of principal (and premium or Make-Whole Amount, if any) and interest and
Additional Amounts, if any, but such money need not be segregated from other
funds except to the extent required by law.

     Unless otherwise specified with respect to any Security pursuant to Section
301, if, after a deposit referred to in Section 1404(a) has been made, (i) the
Holder of a Security in respect of which such deposit was made is entitled to,
and does, elect pursuant to Section 301 or the terms of such Security to receive
payment in a currency, currency unit or composite currency other than that in
which the deposit pursuant to Section 1404(a) has been made in respect of such
Security or (ii) a Conversion Event occurs in respect of the currency, currency
unit or composite currency in which the deposit pursuant to Section 1404(a) has
been made, the indebtedness represented by such Security and any coupons
appertaining thereto shall be deemed to have been, and will be, fully discharged
and satisfied through the payment of the principal of (and premium or Make-Whole
Amount, if any, on), and interest and Additional Amounts, if any, on such
Security as the same become due out of the proceeds yielded by converting (from
time to time as specified below in the case of any such election) the amount or
other property deposited in respect of such Security into the currency, currency
unit or composite currency in which such Security becomes payable as a result of
such election or Conversion Event based on the applicable market exchange rate
for such currency, currency unit or composite currency in effect on the second
Business Day prior to each payment date, except, with respect to a Conversion
Event, for such currency, currency unit or composite currency in effect (as
nearly as feasible) at the time of the Conversion Event.

     The Company shall pay and indemnify the Trustee against any tax, fee or
other charge imposed on or assessed against the Government Obligations deposited
pursuant to Section 1404 or the principal and interest received in respect
thereof other than any such tax, fee or other charge which by law is for the
account of the Holders of such Outstanding Securities and any coupons
appertaining thereto.

     Anything in this Article to the contrary notwithstanding, the Trustee or
such other qualifying trustee shall deliver or pay to the Company, from time to
time upon Company Request, any money or Government Obligations (or other
property and any proceeds therefrom) held by it as provided in Section 1404
which, in the opinion of a nationally recognized firm of independent public
accountants expressed in a written certification thereof delivered to the
Trustee or such other qualifying trustee, are in excess of the amount thereof
which would then be required to be deposited to effect a defeasance or covenant
defeasance, as applicable, in accordance with this Article.

                                       80
<PAGE>
 
                                ARTICLE FIFTEEN
                       MEETINGS OF HOLDERS OF SECURITIES

     SECTION 1501. Purposes for Which Meetings May Be Called. A meeting of
                   -----------------------------------------              
Holders of Securities of any series may be called at any time and from time to
time pursuant to this Article to make, give or take any request, demand,
authorization, direction, notice, consent, waiver or other action provided by
this Indenture to be made, given or taken by Holders of Securities of such
series.

     SECTION 1502. Call, Notice and Place of Meetings.
                   ---------------------------------- 

          (a) The Trustee may at any time call a meeting of Holders of
     Securities of any series for any purpose specified in Section 1501, to be
     held at such time and at such place in the city of Boston, Massachusetts,
     as the Trustee determines. Notice of every meeting of Holders of Securities
     of any series, setting forth the time and the place of such meeting and in
     general terms the action proposed to be taken at such meeting, shall be
     given, in the manner provided in Section 106, not less than 21 nor more
     than 180 days prior to the date fixed for the meeting.

          (b) In case at any time the Company, pursuant to a Board Resolution,
     or the Holders of at least 10% in principal amount of the Outstanding
     Securities of any series have requested the Trustee to call a meeting of
     the Holders of Securities of such series for any purpose specified in
     Section 1501, by written request setting forth in reasonable detail the
     action proposed to be taken at the meeting, and the Trustee has not made
     the first publication of the notice of such meeting within 21 days after
     receipt of such request or does not thereafter proceed to cause the meeting
     to be held as provided herein, then the Company or the Holders of
     Securities of such series in the amount above specified, as the case may
     be, may determine the time and the place in the city of Boston,
     Massachusetts, for such meeting and may call such meeting for such purposes
     by giving notice thereof as provided in paragraph (a) above.

     SECTION 1503. Persons Entitled to Vote at Meetings. To be entitled to vote
                   ------------------------------------                        
at any meeting of Holders of Securities of any series, a Person shall be (i) a
Holder of one or more Outstanding Securities of such series or (ii) a Person
appointed by an instrument in writing as proxy for a Holder or Holders of one or
more Outstanding Securities of such series by such Holder or Holders. The only
Persons who shall be entitled to be present or to speak at any meeting of
Holders of Securities of any series are the Persons entitled to vote at such
meeting and their counsel, any representatives of the Trustee and its counsel,
and any representatives of the Company and its counsel.

     SECTION 1504. Quorum; Action. The Persons entitled to vote a majority in
                   --------------                                            
principal amount of the Outstanding Securities of a series shall constitute a
quorum for a meeting of Holders of Securities of such series; provided, however,
                                                              --------  ------- 
that if any action is to be taken at such meeting with respect to a consent or
waiver which this Indenture expressly provides may be 

                                       81
<PAGE>
 
given by the Holders of not less than a specified percentage in principal amount
of the Outstanding Securities of a series, the Persons entitled to vote such
specified percentage in principal amount of the Outstanding Securities of such
series shall constitute a quorum. In the absence of a quorum within 30 minutes
after the time appointed for any such meeting, the meeting shall, if convened at
the request of Holders of Securities of such series, be dissolved. In any other
case the meeting may be adjourned for a period of not less than 10 days as
determined by the chairman of the meeting prior to the adjournment of such
meeting. In the absence of a quorum at any such adjourned meeting, such
adjourned meeting may be further adjourned for a period of not less than 10 days
as determined by the chairman of the meeting prior to the adjournment of such
adjourned meeting. Notice of the reconvening of any adjourned meeting shall be
given as provided in Section 1502(a), except that such notice need be given only
once not less than five days prior to the date on which the meeting is scheduled
to be reconvened. Notice of the reconvening of any adjourned meeting shall state
expressly the percentage, as provided above, of the principal amount of the
Outstanding Securities of such series which shall constitute a quorum.

     Except as limited by the proviso to Section 902, any resolution presented
to a meeting or adjourned meeting duly reconvened at which a quorum is present
as aforesaid may be adopted by the affirmative vote of the Holders of a majority
in principal amount of the Outstanding Securities of such series; provided,
                                                                  -------- 
however, that, except as limited by the proviso to Section 902, any resolution
- -------                                                                       
with respect to any request, demand, authorization, direction, notice, consent,
waiver or other action which this Indenture expressly provides may be made,
given or taken by the Holders of a specified percentage, which is less than a
majority, in principal amount of the Outstanding Securities of a series may be
adopted at a meeting or an adjourned meeting duly reconvened and at which a
quorum is present as aforesaid by the affirmative vote of the Holders of such
specified percentage in principal amount of the Outstanding Securities of such
series.

     Any resolution passed or decision taken at any meeting of Holders of
Securities of any series duly held in accordance with this Section shall be
binding on all the Holders of Securities of such series and any coupons
appertaining thereto, whether or not present or represented at the meeting.

     Notwithstanding the foregoing provisions of this Section 1504, if any
action is to be taken at a meeting of Holders of Securities of any series with
respect to any request, demand, authorization, direction, notice, consent,
waiver or other action which this Indenture expressly provides may be made,
given or taken by the Holders of a specified percentage in principal amount of
all Outstanding Securities affected thereby, or of the Holders of such series
and one or more additional series;

          (1) there shall be no minimum quorum requirement for such meeting; and

          (2) the principal amount of the Outstanding Securities of such series
     which vote in favor of such request, demand, authorization, direction,
     notice, consent, waiver 

                                       82
<PAGE>
 
     or other action shall be taken into account in determining whether such
     request, demand, authorization, direction, notice, consent, waiver or other
     action has been made, given or taken under this Indenture.

     SECTION 1505. Determination of Voting Rights; Conduct and Adjournment of
                   ----------------------------------------------------------
Meetings.
- -------- 

          (a) Notwithstanding any provisions of this Indenture, the Trustee may
     make such reasonable regulations as it may deem advisable for any meeting
     of Holders of Securities of a series in regard to proof of the holding of
     Securities of such series and of the appointment of proxies and in regard
     to the appointment and duties of inspectors of votes, the submission and
     examination of proxies, certificates and other evidence of the right to
     vote, and such other matters concerning the conduct of the meeting as it
     deems appropriate. Except as otherwise permitted or required by any such
     regulations, the holding of Securities shall be proved in the manner
     specified in Section 104 and the appointment of any proxy shall be proved
     in the manner specified in Section 104 or by having the signature of the
     Person executing the proxy witnessed or guaranteed by any trust company,
     bank or banker authorized by Section 104 to certify to the holding of
     Bearer Securities. Such regulations may provide that written instruments
     appointing proxies, regular on their face, may be presumed valid and
     genuine without the proof specified in Section 104 or other proof.

          (b) The Trustee shall, by an instrument in writing appoint a temporary
     chairman of the meeting, unless the meeting has been called by the Company
     or by Holders of Securities as provided in Section 1502(b), in which case
     the Company or the Holders of Securities of or within the series calling
     the meeting, as the case may be, shall in like manner appoint a temporary
     chairman. A permanent chairman and a permanent secretary of the meeting
     shall be elected by vote of the Persons entitled to vote a majority in
     principal amount of the Outstanding Securities of such series represented
     at the meeting.

          (c) At any meeting each Holder of a Security of such series or proxy
     shall be entitled to one vote for each $1,000 principal amount of the
     Outstanding Securities of such series held or represented by such Holder;
     provided, however, that no vote shall be cast or counted at any meeting in
     --------  -------                                                         
     respect of any Security challenged as not Outstanding and ruled by the
     chairman of the meeting to be not Outstanding. The chairman of the meeting
     shall have no right to vote, except as a Holder of a Security of such
     series or proxy.

          (d) Any meeting of Holders of Securities of any series duly called
     pursuant to Section 1502 at which a quorum is present may be adjourned from
     time to time by Persons entitled to vote a majority in principal amount of
     the Outstanding Securities of such series represented at the meeting, and
     the meeting may be held as so adjourned without further notice.

                                       83
<PAGE>
 
     SECTION 1506. Counting Votes and Recording Action of Meetings. The vote on
                   -----------------------------------------------             
any resolution submitted to any meeting of Holders of Securities of any series
shall be by written ballots on which shall be subscribed the signatures of the
Holders of Securities of such series or of their representatives by proxy and
the principal amounts and series numbers of the Outstanding Securities of such
series held or represented by them. The permanent chairman of the meeting shall
appoint two inspectors of votes who shall count all votes cast at the meeting
for or against any resolution and who shall make and file with the secretary of
the meeting their verified written reports in duplicate of all votes cast at the
meeting. A record, at least in duplicate, of the proceedings of each meeting of
Holders of Securities of any series shall be prepared by the secretary of the
meeting and there shall be attached to such record the original reports of the
inspectors of votes on any vote by ballot taken thereat and affidavits by one or
more persons having knowledge of the fact, setting forth a copy of the notice of
the meeting and showing that such notice was given as provided in Section 1502
and, if applicable, Section 1504. Each copy shall be signed and verified by the
affidavits of the permanent chairman and secretary of the meeting and one such
copy shall be delivered to the Company and another to the Trustee to be
preserved by the Trustee, the latter to have attached thereto the ballots voted
at the meeting. Any record so signed and verified shall be conclusive evidence
of the matters therein stated.

     SECTION 1507. Evidence of Action Taken by Holders. Any request, demand,
                   -----------------------------------                      
authorization, direction, notice, consent, waiver or other action provided by
this Indenture to be given or taken by a specified percentage in principal
amount of the Holders of any or all series may be embodied in and evidenced by
one or more instruments of substantially similar tenor signed by such specified
percentage of Holders in person or by agent duly appointed in writing; and,
except as otherwise expressly provided herein, such action shall become
effective when such instrument or instruments are delivered to the Trustee.
Proof of execution of any instrument or of a writing appointing any such agent
shall be sufficient for any purpose of this Indenture and (subject to Article
Six) conclusive in favor of the Trustee and the Company, if made in the manner
provided in this Article.

     SECTION 1508. Proof of Execution of Instruments. Subject to Article Six,
                   ---------------------------------                         
the execution of any instrument by a Holder or his agent or proxy may be proved
in accordance with such reasonable rules and regulations as may be prescribed by
the Trustee or in such manner as shall be satisfactory to the Trustee.

                                       84
<PAGE>
 
     IN WITNESS WHEREOF, the parties hereto have caused this Indenture to be
duly executed, and their respective corporate seals to be hereunto affixed and
attested, all as of the day and year first above written.

                                       SECURITY CAPITAL GROUP INCORPORATED
                        
                        
                        
                                       By:_______________________________
                                       Name:_____________________________
                                       Title:____________________________

[SEAL]

Attest:

______________________________________

Secretary


                                       STATE STREET BANK AND TRUST COMPANY,
                                       As Trustee
                                       
                                       
                                       By:_______________________________
                                       Name:_____________________________
[SEAL]                                 Title:____________________________

Attest:

______________________________________

Secretary

                                       85
<PAGE>
 
STATE OF NEW MEXICO     )
                        ) ss:
COUNTY OF__________     )

     On the _____ day of ________________, 1998, before me personally came
______________________, to me known, who, being by me duly sworn, did depose and
say that he resides at ____________________________________________, that he is
a ____________________ of Security Capital Group Incorporated, one of the
entities described in and which executed the foregoing instrument; that he knows
the seal of such entity; that the seal affixed to such instrument is such seal;
that it was so affixed by authority of the Board of Directors of such entity,
and that he signed his name thereto by like authority.

[Notarial Seal]

                                      _______________________________
                                      Notary Public
                                      Commission Expires


STATE OF MASSACHUSETTS  )
                        ) ss:
COUNTY OF SUFFOLK       )

     On the _____ day of _______________, 1998, before me personally came
____________________, to me known, who, being by me duly sworn, did depose and
say that _____ resides at ________________________________________, that _____
is a ____________________ of State Street Bank and Trust Company, one of the
entities described in and which executed the foregoing instrument; that _____
knows the seal of such entity; that the seal affixed to such instrument is such
seal; that it was so affixed by authority of the Board of Directors of such
entity, and that _____ signed _____ name thereto by like authority.

[Notarial Seal]

                                      _______________________________
                                      Notary Public
                                      Commission Expires

                                       86
<PAGE>
 
                                   EXHIBIT A

                            FORMS OF CERTIFICATION


                                  EXHIBIT A-1

              FORM OF CERTIFICATE TO BE GIVEN BY PERSON ENTITLED
               TO RECEIVE BEARER SECURITY OR TO OBTAIN INTEREST
                      PAYABLE PRIOR TO THE EXCHANGE DATE

                                  CERTIFICATE

[INSERT TITLE OR SUFFICIENT DESCRIPTION OF SECURITIES TO BE DELIVERED]

     This is to certify that, as of the date hereof, and except as set forth
below, the above-captioned Securities held by you for our account (i) are owned
by person(s) which are not citizens or residents of the United States, domestic
partnerships, domestic corporations or any estate or trust the income of which
is subject to United States federal income taxation regardless of its source
("United States person(s)"), (ii) are owned by United States person(s) which are
(a) foreign branches of United States financial institutions (financial
institutions, as defined in United States Treasury Regulations Section 1.165-
12(c)(1)(v) are herein referred to as "financial institutions") purchasing for
their own account or for resale, or (b) United States person(s) who acquired the
Securities through foreign branches of United States financial institutions and
who hold the Securities through such United States financial institutions on the
date hereof (and in either case (a) or (b), each such United States financial
institution hereby agrees, on its own behalf or through its agent, that you may
advise Security Capital Group Incorporated or its agent that such financial
institution will provide a certificate within a reasonable time stating that it
agrees to comply with the requirements of Section 165(j)(3)(A), (B) or (C) of
the United States Internal Revenue Code of 1986, as amended, and the regulations
thereunder), or (iii) are owned by a financial institution for purposes of
resale during the restricted period (as defined in United States Treasury
Regulations Section 1.163-5(c)(2)(i)(D)(7)), and, such financial institution
described in clause (iii) above (whether or not also described in clause (i) or
(ii)), certifies that it has not acquired the Securities for purposes of resale
directly or indirectly to a United States person or to a person within the
United States or its possessions.

     As used herein, "United States" means the United States of America
(including the States and the District of Columbia); and its "possessions"
include Puerto Rico, the U.S. Virgin Islands, Guam, American Samoa, Wake Island
and the Northern Mariana Islands.

     We undertake to advise you promptly by tested telex on or prior to the date
on which you intend to submit your certification relating to the above-captioned
Securities held by you for our account in accordance with your Operating
Procedures if any applicable statement herein is not

<PAGE>
 
correct on such date, and in the absence of any such notification it may be
assumed that this certification applies as of such date.

     This certificate excepts and does not relate to [U.S.$] _______________ of
such interest in the above-captioned Securities in respect of which we are not
able to certify and as to which we understand an exchange for an interest in a
Permanent Global Security or an exchange for and delivery of definitive
Securities (or, if relevant, collection of any interest) cannot be made until we
do so certify.

     We understand that this certificate may be required in connection with
certain tax legislation in the United States. If administrative or legal
proceedings are commenced or threatened in connection with which this
certificate is or would be relevant, we irrevocably authorize you to produce
this certificate or a copy thereof to any interested party in such proceedings.


Dated: __________ ___, 19___
[To be dated no earlier than the 15th day prior
to the earlier of (i) the Exchange Date or
(ii) the relevant Interest Payment Date occurring
prior to the Exchange Date, as applicable]

                              [Name of Person Making Certification]


                              _____________________________________
                              (Authorized Signatory)
                              Name:
                              Title:

<PAGE>
 
                                  EXHIBIT A-2

                 FORM OF CERTIFICATE TO BE GIVEN BY EUROCLEAR
               AND CEDEL S.A. IN CONNECTION WITH THE EXCHANGE OF
                A PORTION OF A TEMPORARY GLOBAL SECURITY OR TO
              OBTAIN INTEREST PAYABLE PRIOR TO THE EXCHANGE DATE

                                  CERTIFICATE

[INSERT TITLE OR SUFFICIENT DESCRIPTION OF SECURITIES TO BE DELIVERED]

     This is to certify that, based solely on written certifications that we
have received in writing, by tested telex or by electronic transmission from
each of the persons appearing in our records as persons entitled to a portion of
the principal amount set forth below (our "Member Organizations") substantially
in the form attached hereto, as of the date hereof, [U.S.$] _______________
principal amount of the above-captioned Securities (i) is owned by person(s)
which are not citizens or residents of the United States, domestic partnerships,
domestic corporations or any estate or trust the income of which is subject to
United States Federal income taxation regardless of its source ("United States
person(s)"), (ii) is owned by United States persons(s) which are (a) foreign
branches of United States financial institutions (financial institutions, as
defined in United States Treasury Regulations Section 1.165-12(c)(1)(v) are
herein referred to as "financial institutions") purchasing for their own account
or for resale, or (b) United States person(s) who acquired the Securities
through foreign branches of United States financial institutions and who hold
the Securities through such United States financial institutions on the date
hereof (and in either case (a) or (b), each such financial institution has
agreed, on its own behalf or through its agent, that we may advise Security
Capital Group Incorporated or its agent that such financial institution will
provide a certificate within a reasonable time stating that it agrees to comply
with the requirements of Section 165(j)(3)(A), (B) or (C) of the Internal
Revenue Code of 1986, as amended, and the regulations thereunder), or (iii) is
owned by a financial institution for purposes of resale during the restricted
period (as defined in United States Treasury Regulations Section 1.163-
5(c)(2)(i)(D)(7)), and that such financial institutions described in clause
(iii) above (whether or not also described in clause (i) or (ii)) have certified
that they have not acquired the Securities for purposes of resale directly or
indirectly to a United States person or to a person within the United States or
its possessions.

     As used herein, "United States" means the United States of America
(including the States and the District of Columbia); and its "possessions"
include Puerto Rico, the U.S. Virgin Islands, Guam, American Samoa, Wake Island
and the Northern Mariana Islands.

     We further certify that (i) we are not making available herewith for
exchange (or, if relevant, collection of any interest) any portion of the
temporary global Security representing the above-captioned Securities excepted
in the above-referenced certificates of Member Organizations and (ii) as of the
date hereof we have not received any notification from any of our Member
Organizations to the effect that the statements made by such Member
Organizations

<PAGE>
 
with respect to any portion of the part submitted herewith for exchange (or, if
relevant, collection of any interest) are no longer true and cannot be relied on
as of the date hereof.

     We understand that this certification is required in connection with
certain tax legislation in the United States. If administrative or legal
proceedings are commenced or threatened in connection with which this
certificate is or would be relevant, we irrevocably authorize you to produce
this certificate or a copy thereof to any interested party in such proceedings.


Dated: __________ ___, 19___
[To be dated no earlier than the earlier of
the Exchange Date or the relevant Interest
Payment Date occurring prior to the Exchange
Date, as applicable]

                              [Morgan Guaranty Trust Company of New York,
                              Brussels Office,] as Operator of the Euroclear
                              System
                              [Cedel S.A.]


                              ______________________________________
                              By:


<PAGE>
 
                                                                     EXHIBIT 4.2

================================================================================


                      SECURITY CAPITAL GROUP INCORPORATED



                                      TO

                      STATE STREET BANK AND TRUST COMPANY
                                    Trustee


                              __________________


                                   Indenture

                          Dated as of _________, 1998


                              __________________


                         Subordinated Debt Securities


================================================================================
<PAGE>
 
                               TABLE OF CONTENTS


<TABLE>
<CAPTION>
                                                                                                  Page
                                                                                                  ----
RECITALS

                              ARTICLE ONE
            DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION
<S>                                                                                               <C>
            SECTION 101. Definitions..........................................................      1
                  Act.........................................................................      2
                  Additional Amounts..........................................................      2
                  Affiliate...................................................................      2
                  Authenticating Agent........................................................      2
                  Authorized Newspaper........................................................      2
                  Bankruptcy Law..............................................................      2
                  Bearer Security.............................................................      2
                  Board of Directors..........................................................      2
                  Board Resolution............................................................      3
                  Business Day................................................................      3
                  Capital Stock...............................................................      3
                  CEDEL.......................................................................      3
                  Commission..................................................................      3
                  Common Depositary...........................................................      3
                  Common Shares...............................................................      3
                  Company.....................................................................      3
                  Company Certificate.........................................................      3
                  Company Request" and "Company Order.........................................      4
                  Conversion Event............................................................      4
                  Corporate Trust Office......................................................      4
                  corporation.................................................................      4
                  coupon......................................................................      4
                  covenant defeasance.........................................................      4
                  Custodian...................................................................      4
                  Defaulted Interest..........................................................      4
                  defeasance..................................................................      4
                  Dollar" or "$...............................................................      4
                  DTC.........................................................................      4
                  ECU.........................................................................      4
                  Euroclear...................................................................      5
                  European Communities........................................................      5
                  European Monetary System....................................................      5
                  Event of Default............................................................      5
</TABLE>

                                       i
<PAGE>
 
<TABLE> 
<S>                                                                                                 <C> 
                  Exchange Act................................................................      5
                  Exchange Date...............................................................      5
                  Foreign Currency............................................................      5
                  GAAP........................................................................      5
                  Government Obligations......................................................      5
                  Hedging Obligations.........................................................      6
                  Holder......................................................................      6
                  Indenture...................................................................      6
                  Indexed Security............................................................      6
                  interest....................................................................      6
                  Interest Payment Date.......................................................      6
                  Make-Whole Amount...........................................................      7
                  mandatory sinking fund payment..............................................      7
                  Maturity....................................................................      7
                  Notice of Default...........................................................      7
                  Opinion of Counsel..........................................................      7
                  optional sinking fund payment...............................................      7
                  Original Issue Discount Security............................................      7
                  Outstanding.................................................................      7
                  Paying Agent................................................................      8
                  Payment Default.............................................................      9
                  Permitted Investments.......................................................      9
                  Person......................................................................     10
                  Place of Payment............................................................     10
                  Predecessor Security........................................................     11
                  Qualified GIC...............................................................     11
                  Redemption Date.............................................................     11
                  Redemption Price............................................................     12
                  Registered Security.........................................................     12
                  Regular Record Date.........................................................     12
                  Repayment Date..............................................................     12
                  Repayment Price.............................................................     12
                  Required Filing Dates.......................................................     12
                  Responsible Officer.........................................................     12
                  Securities Act..............................................................     12
                  Security....................................................................     12
                  Security Register and Security Registrar....................................     12
                  Senior Indebtedness.........................................................     13
                  Significant Subsidiary......................................................     13
                  Special Record Date.........................................................     13
                  Stated Maturity.............................................................     13 
</TABLE>

                                       ii
<PAGE>
 
<TABLE> 
<S>                                                                                                                <C> 
                  Subsidiary.....................................................................................  13
                  Trust Indenture Act............................................................................  14
                  Trustee                                                                                          14
                  United States..................................................................................  14
                  United States person...........................................................................  14
                  Yield to Maturity..............................................................................  14
         SECTION 102. Compliance Certificates and Opinions.......................................................  14
         SECTION 103. Form of Documents Delivered to Trustee.....................................................  15
         SECTION 104. Acts of Holders............................................................................  15
         SECTION 105. Notices to Trustee and Company.............................................................  17
         SECTION 106. Notice to Holders; Waiver..................................................................  18
         SECTION 107. Effect of Headings and Table of Contents...................................................  19
         SECTION 108. Successors and Assigns.....................................................................  19
         SECTION 109. Separability Clause........................................................................  19
         SECTION 110. Benefits of Indenture......................................................................  19
         SECTION 111. No Personal Liability......................................................................  19
         SECTION 112. Governing Law..............................................................................  20
         SECTION 113. Legal Holidays.............................................................................  20
         SECTION 114. Counterparts...............................................................................  20

                                  ARTICLE TWO
                               SECURITIES FORMS

         SECTION 201. Forms of Securities........................................................................  20
         SECTION 202. Form of Trustee's Certificate of Authentication............................................  21
         SECTION 203. Securities Issuable in Global Form.........................................................  21

                                 ARTICLE THREE
                                THE SECURITIES

         SECTION 301. Amount Unlimited; Issuable in Series.......................................................  22
         SECTION 302. Denominations..............................................................................  26
         SECTION 303. Execution, Authentication, Delivery and Dating.............................................  27
         SECTION 304. Temporary Securities.......................................................................  29
         SECTION 305. Registration, Registration of Transfer and Exchange........................................  32
         SECTION 306. Mutilated, Destroyed, Lost and Stolen Securities...........................................  36
         SECTION 307. Payment of Interest; Interest Rights Preserved.............................................  37
         SECTION 308. Persons Deemed Owners......................................................................  39 
         SECTION 309. Cancellation...............................................................................  40
         SECTION 310. Computation of Interest....................................................................  40
</TABLE> 

                                      iii
<PAGE>
 
                                 ARTICLE FOUR
                          SATISFACTION AND DISCHARGE

<TABLE> 
        <S>                                                                                                        <C> 
         SECTION 401. Satisfaction and Discharge of Indenture....................................................  41
         SECTION 402. Application of Trust Funds.................................................................  42

                                 ARTICLE FIVE
                                   REMEDIES

         SECTION 501. Events of Default..........................................................................  42
         SECTION 502. Acceleration of Maturity; Rescission and Annulment.........................................  45
         SECTION 503. Collection of Indebtedness and Suits for Enforcement by Trustee............................  46
         SECTION 504. Trustee May File Proofs of Claim...........................................................  47
         SECTION 505. Trustee May Enforce Claims Without Possession of
                          Securities or Coupons..................................................................  48
         SECTION 506. Application of Money Collected.............................................................  48
         SECTION 507. Limitation on Suits........................................................................  48
         SECTION 508. Unconditional Right of Holders to Receive Principal, Premium
                          or Make-Whole Amount, Interest and Additional Amounts..................................  49
         SECTION 509. Restoration of Rights and Remedies.........................................................  49
         SECTION 510. Rights and Remedies Cumulative.............................................................  50
         SECTION 511. Delay or Omission Not Waiver...............................................................  50
         SECTION 512. Control by Holders of Securities...........................................................  50
         SECTION 513. Waiver of Past Defaults....................................................................  50
         SECTION 514. Waiver of Usury, Stay or Extension Laws....................................................  51
         SECTION 515. Undertaking for Costs......................................................................  51

                                  ARTICLE SIX
                                  THE TRUSTEE

         SECTION 601. Notice of Defaults.........................................................................  52
         SECTION 602. Certain Rights of Trustee..................................................................  52
         SECTION 603. Not Responsible for Recitals or Issuance of Securities.....................................  54
         SECTION 604. May Hold Securities........................................................................  54
         SECTION 605. Money Held in Trust; Permitted Investments.................................................  54
         SECTION 606. Compensation and Reimbursement.............................................................  55
         SECTION 607. Trustee Eligibility; Conflicting Interests.................................................  55
         SECTION 608. Resignation and Removal; Appointment of Successor..........................................  56
         SECTION 609. Acceptance of Appointment by Successor.....................................................  57
         SECTION 610. Merger, Conversion, Consolidation or Succession to Business................................  59
         SECTION 611. Appointment of Authenticating Agent........................................................  59
</TABLE> 

                                       iv
<PAGE>
 
                              ARTICLE SEVEN      
               HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY
<TABLE> 
   <S>                                                                                                            <C> 
         SECTION 701. Disclosure of Names and Addresses of Holders...............................................  61
         SECTION 702. Reports by Trustee.........................................................................  61
         SECTION 703. Company to Furnish Trustee Names and Addresses of Holders..................................  61

                              ARTICLE EIGHT      
               CONSOLIDATION, MERGER, SALE, LEASE OR CONVEYANCE

         SECTION 801. Consolidations and Mergers of Company and Sales,
                          Leases and Conveyances.................................................................  62
         SECTION 802. Rights and Duties of Successor Entity......................................................  62
         SECTION 803. Company Certificate and Opinion of Counsel.................................................  63

                                 ARTICLE NINE
                            SUPPLEMENTAL INDENTURES

         SECTION 901. Supplemental Indentures Without Consent of Holders.........................................  63
         SECTION 902. Supplemental Indentures with Consent of Holders............................................  65
         SECTION 903. Execution of Supplemental Indentures.......................................................  66
         SECTION 904. Effect of Supplemental Indentures..........................................................  66
         SECTION 905. Conformity with Trust Indenture Act........................................................  66
         SECTION 906. Reference in Securities to Supplemental Indentures.........................................  67
         SECTION 907. Notice of Supplemental Indentures..........................................................  67

                                  ARTICLE TEN
                                   COVENANTS

         SECTION 1001. Payment of Principal, Premium or Make-Whole Amount,
                          Interest and Additional Amounts........................................................  67
         SECTION 1002. Maintenance of Office or Agency...........................................................  67
         SECTION 1003. Money for Securities Payments to Be Held in Trust.........................................  69
         SECTION 1004. Existence.................................................................................  71
         SECTION 1005. Maintenance of Properties.................................................................  71
         SECTION 1006. Insurance.................................................................................  71
         SECTION 1007. Payment of Taxes and Other Claims.........................................................  71
         SECTION 1008. Reports...................................................................................  72
         SECTION 1009. Statement as to Compliance................................................................  73
         SECTION 1010. Additional Amounts........................................................................  73
</TABLE> 

                                       v
<PAGE>
 
<TABLE> 
<S>                                                                                                                <C> 
         SECTION 1011. Waiver of Certain Covenants...............................................................  74
         SECTION 1012. Seniority of Securities...................................................................  75

                             ARTICLE ELEVEN      
                           REDEMPTION OF SECURITIES

         SECTION 1101. Applicability of Article..................................................................  75
         SECTION 1102. Election to Redeem; Notice to Trustee.....................................................  75
         SECTION 1103. Selection by Trustee of Securities to Be Redeemed.........................................  75
         SECTION 1104. Notice of Redemption......................................................................  76
         SECTION 1105. Deposit of Redemption Price...............................................................  77
         SECTION 1106. Securities Payable on Redemption Date.....................................................  77
         SECTION 1107. Securities Redeemed in Part...............................................................  78

                                ARTICLE TWELVE 
                                 SINKING FUNDS

         SECTION 1201. Applicability of Article..................................................................  79
         SECTION 1202. Satisfaction of Sinking Fund Payments with Securities.....................................  79
         SECTION 1203. Redemption of Securities for Sinking Fund.................................................  79

                             ARTICLE THIRTEEN     
                      REPAYMENT AT THE OPTION OF HOLDERS

         SECTION 1301. Applicability of Article..................................................................  80
         SECTION 1302. Repayment of Securities...................................................................  80
         SECTION 1303. Exercise of Option........................................................................  80
         SECTION 1304. When Securities Presented for Repayment Become Due and
                          Payable................................................................................  81
         SECTION 1305. Securities Repaid in Part.................................................................  82

                             ARTICLE FOURTEEN     
                      DEFEASANCE AND COVENANT DEFEASANCE

         SECTION 1401. Applicability of Article; Company's Option to Effect
                          Defeasance or Covenant Defeasance......................................................  82
         SECTION 1402. Defeasance and Discharge..................................................................  83
         SECTION 1403. Covenant Defeasance.......................................................................  83
         SECTION 1404. Conditions to Defeasance or Covenant Defeasance...........................................  84
         SECTION 1405. Deposited Money and Government Obligations to Be Held in Trust;  
                  Other Miscellaneous Provisions.................................................................  86
</TABLE> 

                                       vi
<PAGE>
 
                             ARTICLE FIFTEEN     
                       MEETINGS OF HOLDERS OF SECURITIES
<TABLE> 
<S>                                                                                                                <C> 
         SECTION 1501. Purposes for Which Meetings May Be Called.................................................  87
         SECTION 1502. Call, Notice and Place of Meetings........................................................  87
         SECTION 1503. Persons Entitled to Vote at Meetings......................................................  88
         SECTION 1504. Quorum; Action............................................................................  88
         SECTION 1505. Determination of Voting Rights; Conduct and Adjournment of Meetings.......................  89
         SECTION 1506. Counting Votes and Recording Action of Meetings...........................................  90
         SECTION 1507. Evidence of Action Taken by Holders.......................................................  91
         SECTION 1508. Proof of Execution of Instruments.........................................................  91

                                ARTICLE SIXTEEN
                          SUBORDINATION OF SECURITIES

         SECTION 1601  Securities Subordinated to Senior Indebtedness............................................  91
         SECTION 1602  Subrogation...............................................................................  93
         SECTION 1603  Obligation of the Company Unconditional...................................................  93
         SECTION 1604  Payments on Securities Permitted..........................................................  94
         SECTION 1605  Effectuation of Subordination by Trustee..................................................  94
         SECTION 1606  Knowledge of Trustee......................................................................  94
         SECTION 1607  Trustee May Hold Senior Indebtedness......................................................  94
         SECTION 1608  Rights of Holders of Senior Indebtedness Not Impaired.....................................  95
</TABLE> 


TESTIMONIUM
SIGNATURES AND SEALS
ACKNOWLEDGMENTS
EXHIBIT A - FORMS OF CERTIFICATION

                                      vii
<PAGE>
 
                        Reconciliation and tie between
     Trust Indenture Act of 1939, as amended (the "Trust Indenture Act"),
                                 and Indenture


Trust Indenture Act Section                     Indenture Section
- ---------------------------                     -----------------
310(a)(1), (2) and (5)                          607(a)
310(a)(3) and (4)                               Not applicable
310(b)                                          608(d)
310(c)                                          Not applicable
311                                             Not applicable
312(a)                                          704
312(b)                                          Not applicable
312(c)                                          701
313(a) and (c)                                  702
313(b)                                          Not applicable
314(a)(1), (2) and (3)                          1008
314(a)(4)                                       1008
314(b)                                          Not applicable
314(c) and (e)                                  102
314(d)                                          Not applicable
315(a), (c), (d) and (e)                        Not applicable
315(b)                                          601
316(a) (last sentence)                          101 ("Outstanding")
316(a)(1)(A)                                    512
316(a)(1)(B)                                    513
316(a)(2) and (c)                               Not applicable
316(b)                                          508
317(a)(1)                                       503
317(a)(2)                                       504
317(b)                                          Not applicable
318(a)                                          112


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 Section  318(c) of the
                  Trust  Indenture  Act,  which  provides that the provisions of
                  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.

                                      viii
<PAGE>
 
     INDENTURE, dated as of __________, 1998, from SECURITY CAPITAL GROUP
INCORPORATED, a Maryland corporation (hereinafter called the "Company"), having
                                                              -------          
its principal office at 125 Lincoln Avenue, Santa Fe, New Mexico 87501 to STATE
STREET BANK AND TRUST COMPANY, a Massachusetts trust company, as Trustee
hereunder (hereinafter called the "Trustee"), currently having its Corporate
                                   -------                                  
Trust Office at Two International Place, Corporate Trust Division, Boston,
Massachusetts 02110.

                                   RECITALS

     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 unsubordinated indebtedness, and has duly authorized the
execution and delivery of this Indenture to provide for the issuance from time
to time of the Securities, unlimited as to aggregate principal amount, to bear
interest at the rates or formulas, to mature at such times and to have such
other provisions as shall be fixed therefor as hereinafter provided.

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

     This Indenture is subject to the provisions of the Trust Indenture Act (as
herein defined) and the rules and regulations of the Commission (as herein
defined) promulgated thereunder which are required to be part of this Indenture
and, to the extent applicable, shall be governed by such provisions.

     NOW, THEREFORE, THIS INDENTURE WITNESSETH:

     For and in consideration of the premises and the purchase of the Securities
by the Holders (as herein defined) 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 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 Trust
     Indenture Act, either directly or by reference therein, have the meanings
     assigned to them therein, and 

                                       1
<PAGE>
 
     the terms "cash transaction" and "self-liquidating paper," as used in
                -----------------      ----------------------  
     Section 311 of the Trust Indenture Act, shall have the meanings assigned to
     them in the rules of the Commission adopted under the Trust Indenture Act;

          (3)  all accounting terms not otherwise defined herein have the
     meanings assigned to them in accordance with GAAP (as herein defined); 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" has the meaning specified in Section 104(a).
      ---                                              

     "Additional Amounts" means any additional amounts which are required by a
      ------------------                                                      
Security, under circumstances specified therein, to be paid by the Company in
respect of certain taxes imposed on certain Holders and which are owing to such
Holders.

     "Affiliate" when used with respect to any Person, means any other Person
      ---------                                                              
directly or indirectly controlling or controlled by or under direct or indirect
common control with such 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 authenticating agent appointed by the
      --------------------                                                 
Trustee pursuant to Section 611.

     "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 a Security which is payable to bearer.
      ---------------                                              

     "Board of Directors" means the board of directors of the Company, the
      ------------------                                                  
executive committee or any other committee of such board duly authorized to act
for it in respect hereof.

                                       2
<PAGE>
 
     "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 pursuant to Section
301, any day, other than a Saturday or Sunday, which is neither a legal holiday
nor a day on which banking institutions in such Place of Payment or particular
location are authorized or required by law, regulation or executive order to
close.

     "Capital Stock" means (i) in the case of a corporation, corporate stock,
      -------------                                                          
(ii) in the case of an association or business entity, any and all shares,
interests, participations, rights or other equivalents (however designated) of
corporate stock, (iii) in the case of a partnership, partnership interests
(whether general or limited) and (iv) any other interest or participation which
confers on a Person the right to receive a share of the profits and losses of,
or distributions of assets of, the issuing Person.

     "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 Exchange Act, 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 Depositary" has the meaning specified in Section 304(b).
      -----------------                                              

     "Common Shares" means the shares of common stock, par value $.01 per share,
      -------------                                                             
of the Company.

     "Company" means the Person named as the "Company" in the first paragraph of
      -------                                                                   
this Indenture until a successor corporation has become such pursuant to the
applicable provisions of this Indenture, and thereafter "Company" shall mean
such successor corporation, and any other obligor on the Securities.

     "Company Certificate" means a certificate signed by the Chairman or a Co-
      -------------------                                                    
Chairman, Managing Director, Senior Vice President or Vice President of the
Company and by the Treasurer, an Assistant Treasurer, the Secretary or an
Assistant Secretary of the Company, and delivered to the Trustee.

                                       3
<PAGE>
 
     "Company Request" and "Company Order""" mean, respectively, a written
      ---------------       ---------------                               
request or order signed in the name of the Company by the Chairman or a Co-
Chairman, Managing Director, Senior Vice President or Vice President of the
Company and by the Treasurer, an Assistant Treasurer, the Secretary or an
Assistant Secretary of the Company, and delivered to the Trustee.

     "Conversion Event" means the cessation of use of (i) a Foreign Currency
      ----------------                                                      
(other than the ECU or other currency unit) 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.

     "Corporate Trust Office" means the office of the Trustee at which, at any
      ----------------------                                                  
particular time, its corporate trust business is principally administered, which
office at the date hereof is located at Two International Place, Corporate Trust
Division, Boston, Massachusetts 02110.

     "corporation" includes corporations, associations, companies, real estate
      -----------                                                             
investment trusts and business trusts.

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

     "covenant defeasance" has the meaning specified in Section 1403.
      -------------------                                            

     "Custodian" has the meaning specified in Section 501.
      ---------                                           

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

     "defeasance" has the meaning specified in Section 1402.
      ----------                                            

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

     "DTC" means The Depository Trust Company.
      ---                                     

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

                                       4
<PAGE>
 
     "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 Section 501.
      ----------------                                           

     "Exchange Act" means the Securities Exchange Act of 1934, as amended, and
      ------------                                                            
the rules and regulations promulgated thereunder by the Commission.

     "Exchange Date" has the meaning specified in Section 304(b).
      -------------                                              

     "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 generally accepted accounting principles as used in the United
      ----                                                                      
States applied on a consistent basis as in effect from time to time, provided
                                                                     --------
that, solely for purposes of calculating any financial covenants, "GAAP" shall
mean generally accepted accounting principles as used in the United States on
the date hereof, applied on a consistent basis.

     "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 also
includes 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 

                                       5
<PAGE>
 
the specific payment of interest on or principal of the Government Obligation
evidenced by such depository receipt.

     "Hedging Obligations" means, with respect to any Person, the greater of (a)
      -------------------                                                       
the net obligations of such Person under (i) interest rate swap agreements,
interest rate cap agreements and interest rate collar agreements, (ii) foreign
exchange contracts or currency swap agreements and (iii) other agreements or
arrangements designed to protect such Person against fluctuations in interest
rates or currency values or (b) zero.

     "Holder" when used with respect to a Registered Security, means the Person
      ------                                                                   
in whose name such Registered Security is registered in the Security Register
and, when used with respect to a Bearer Security or any coupon, means the bearer
thereof.

     "Indenture" means this instrument as originally executed or as it may from
      ---------                                                                
time to time be supplemented or amended by one or more indentures supplemental
hereto entered into pursuant to the applicable provisions hereof, and includes
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" when used with respect to
any one or more series of Securities with respect to which such Person is acting
as Trustee, shall mean this instrument as originally executed or as it may from
time to time be supplemented or amended by one or more indentures supplemental
hereto entered into pursuant to the applicable provisions hereof and shall
include the terms of those particular series of Securities with respect to which
such Person is acting as Trustee established as contemplated by Section 301,
exclusive, however, of any provisions or terms which relate solely to other
series of Securities with respect to which such Person is not acting as 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, means interest payable
after Maturity, and, when used with respect to a Security which provides for the
payment of Additional Amounts pursuant to Section 1010, includes such Additional
Amounts.

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

                                       6
<PAGE>
 
     "Make-Whole Amount" means the amount, if any, in addition to principal
      -----------------                                                    
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.

     "mandatory sinking fund payment" has the meaning specified in Section 1201.
      ------------------------------                                            

     "Maturity" when used with respect to any Security, means the date on which
      --------                                                                 
the principal of such Security or an installment of principal become 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, repurchase or otherwise.

     "Notice of Default" has the meaning specified in Section 501.
      -----------------                                           

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

     "optional sinking fund payment" has the meaning specified in Section 1201.
      -----------------------------                                            

     "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, exclusive of:

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

          (2)  Securities, or portions thereof, for whose payment or redemption
     or 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 is acting as its own Paying Agent) for the holders of such
     Securities and any coupons appertaining thereto, provided that, if such
                                                      --------              
     Securities are to be redeemed, notice of such redemption has been duly
     given pursuant to this Indenture or other provision therefor satisfactory
     to the Trustee has been made;

                                       7
<PAGE>
 
          (3)  Securities, except solely to the extent provided in Section 401,
     1402 or 1403, as applicable, with respect to which the Company has effected
     defeasance and/or covenant defeasance as provided in Article Four or
     Fourteen; and

          (4)  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 has 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 required
- --------  -------                                                         
principal amount of the Outstanding Securities have concurred in 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 Section 313 of the Trust Indenture Act, (i)
the principal amount of an Original Issue Discount Security which may be counted
in making such determination or calculation and which shall be deemed
Outstanding for such purpose shall be equal to the amount of principal thereof
which would be (or has 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 which may be counted in making such determination or
calculation and which 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 which may be counted in making such determination or calculation and
which 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 Indexed Security pursuant to Section
301, and (iv) Securities owned by the Company or any other obligor on the
Securities or any Affiliate of the Company or of such other obligor shall be
disregarded and deemed not Outstanding, except that, for the purposes of
determining whether the Trustee is protected in making such calculation or in
relying on any such request, demand, authorization, direction, notice, consent
or waiver, only Securities which the Trustee knows are so owned shall be so
disregarded. Securities so owned 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 on the Securities or any
Affiliate of the Company or of such other obligor.

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

                                       8
<PAGE>
 
on any Securities or coupons on behalf of the Company, or if no such Person is
authorized, the Company.

     "Payment Default" means any failure to pay any scheduled installment of
      ---------------                                                       
principal of, premium, if any, or interest on any indebtedness within the grace
period provided for such payment in the documentation governing such
indebtedness.

     "Permitted Investments" means:
      ---------------------        

          (1)  Government Obligations;

          (2)  Direct obligations and fully guaranteed certificates of
     beneficial interest of the Export-Import Bank of the United States;
     consolidated debt obligations and letter of credit-backed issues of the
     Federal Home Loan Banks; participation certificates and senior debt
     obligations of the Federal Home Loan Mortgage Corporation; debentures of
     the Federal Housing Administration; mortgage-backed securities (except
     stripped mortgage securities which are valued greater than par on the
     portion of unpaid principal) and senior debt obligations of the Federal
     National Mortgage Association; participation certificates of the General
     Services Administration; guaranteed mortgage-backed securities and
     guaranteed participation certificates and guaranteed pool certificates of
     the Small Business Administration; debt obligations and letter of credit-
     backed issues of the Student Loan Marketing Association; local authority
     bonds of the U.S. Department of Housing and Urban Development; guaranteed
     Title XI financing of the U.S. Maritime Administration; guaranteed transit
     bonds of the Washington Metropolitan Area Transit Authority; or Resolution
     Funding Corporation securities;

          (3)  Direct obligations of any state of the United States of America
     or any subdivision or agency thereof whose unsecured, uninsured and
     unguaranteed general obligation debt is rated, at the time of purchase, at
     least as high as the rating then in effect on the Securities by Standard &
     Poor's Rating Services, or any obligation fully and unconditionally
     guaranteed by any state, subdivision or agency whose unsecured, uninsured
     and unguaranteed general obligation debt is rated, at the time of purchase,
     at least as high as the rating then in effect on the Securities by Standard
     & Poor's Rating Services;

          (4)  Commercial paper (having original maturities of not more than 270
     days) rated, at the time of purchase, "A-1+" by Standard & Poor's Rating
     Services or "P-1" by Moody's Investors Services, Inc.;

          (5)  Federal funds, unsecured certificates of deposit, time deposits
     or bankers acceptances (in each case having maturities of not more than 365
     days) of any domestic bank (including the Trustee in its commercial
     capacity), including a branch office of a foreign

                                       9
<PAGE>
 
     bank which branch office is located in the United States, provided that
                                                               --------  
     written legal opinions in form acceptable to the Trustee are received to
     the effect that full and timely payment of such deposit or similar
     obligation is enforceable against the principal office or any branch of
     such bank, which, at the time of purchase, has a rating of "A-1+" by
     Standard & Poor's Rating Services or "P-1" by Moody's Investors Services,
     Inc.;

          (6)  Deposits of any bank or savings and loan association which has
     combined capital, surplus and undivided profits of not less than
     $3,000,000, provided that such deposits are continuously and fully insured
                 --------                                                      
     by the Federal Deposit Insurance Corporation, including, without
     limitation, an insured money market account of the Trustee;

          (7)  Investments in money-market funds rated in the highest rating
     category by Standard & Poor's Rating Services or Moody's Investors
     Services, Inc.; such funds may include those for which the Trustee or an
     affiliate of the Trustee provides services for a fee, whether as investment
     advisor, custodian, transfer agent, sponsor, distributor or otherwise;

          (8)  Shares of an open-end, diversified investment company which is
     registered under the Investment Company Act of 1940, as amended, and which
     (i) invests exclusively in permitted investments of the type set forth in
     clauses (1) through (7) above; (ii) seeks to maintain a constant net asset
     value per share in accordance with regulations of the Commission; and (iii)
     has aggregate net assets of at least $50,000,000 on the date of purchase;
     and

          (9)  Qualified GICs.

Any investment made in accordance with this Indenture may (i) be executed by the
Trustee or the Company with or through the Trustee or its affiliates and (ii) be
made in securities of any entity for which the Trustee or any of its affiliates
serves as offeror, distributor, advisor or other service provider.

     "Person" means any individual, corporation, partnership, limited liability
      ------                                                                   
company, joint venture, association, joint-stock company, real estate investment
trust, business 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 Corporate Trust Office of the Trustee and any place or
places which the Company may from time to time designate as the place or places
where the principal of (and premium or Make-Whole Amount, if any, on) and
interest and Additional Amounts, if any, on such Securities are payable as
specified as contemplated by Sections 301 and 1002 and presentations,
surrenders, notices and demands with respect to such Securities and this
Indenture may be made.

                                       10
<PAGE>
 
     "Predecessor Security" when used with respect to any particular Security,
      --------------------                                                    
means every previous Security evidencing all or a portion of the same debt as
evidenced by such 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.

     "Qualified GIC" means an investment contract providing for the investment
      -------------                                                           
of funds held by the Trustee and insuring a minimum or fixed rate of return on
investments of such funds, which contract shall:

          (1)  be an obligation of an insurance company or bank whose senior
     long-term debt obligations are rated in one of the two highest rating
     categories by both Moody's Investors Services, Inc. and Standard & Poor's
     Rating Services;

          (2)  provide that the Trustee may exercise all of the rights under
     such contract without the necessity of the taking of action by any other
     person;

          (3)  provide that, if at any time the then current credit standing of
     the obligor under such guaranteed investment contract has been lowered or
     withdrawn by Moody's Investors Services, Inc. or Standard & Poor's Rating
     Services, the Trustee may terminate such contract without penalty and be
     entitled to the return of all funds previously invested thereunder,
     together with accrued interest thereon at the interest rate provided under
     such contract through the date of delivery of such funds to the Trustee;

          (4)  provide that interest shall be payable not less than annually;

          (5)  provide that the Trustee may withdraw funds invested without
     penalty at any time and from time to time to be applied for the purposes
     described therein;

          (6)  be accompanied by an enforceability opinion from counsel to the
     obligor under such guaranteed investment contract in form and substance
     satisfactory to the Trustee; and

          (7)  provide that the Trustee's interest thereunder shall be
     transferable to any successor Trustee hereunder.

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

                                       11
<PAGE>
 
     "Redemption Price" when used with respect to any Security to be redeemed,
      ----------------                                                        
means the price at which it is to be redeemed pursuant to this Indenture.

     "Registered Security" means any Security which is registered in the
      -------------------                                               
Security Register.

     "Regular Record Date" when used with respect to an installment of 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" when used with respect to any Security to be repaid or
      --------------                                                        
repurchased at the option of the Holder, means the date fixed for such repayment
or repurchase by or pursuant to this Indenture.

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

     "Required Filing Dates" has the meaning specified in Section 1008.
      ---------------------                                            

     "Responsible Officer" when used with respect to the Trustee, means any vice
      -------------------                                                       
president (whether or not designated by numbers or words added before or after
said title), any assistant vice president, any assistant secretary or any other
officer or assistant officer of the Trustee in the corporate trust department or
similar group of the Trustee or, with respect to any particular matter arising
hereunder, any officer of the Trustee to whom such matter has been assigned.

     "Securities Act" means the Securities Act of 1933, as amended, and the
      --------------                                                       
rules and regulations promulgated thereunder by the Commission.

     "Security" has the meaning specified 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" when
used with respect to the Indenture with respect to which such Person is acting
as 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 or within any series with
respect to which such Person is not acting as Trustee.

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

                                       12
<PAGE>
 
     "Senior Indebtedness""" means (i) the principal of and premium, if any, and
      -------------------                                                       
unpaid interest on indebtedness for money borrowed, (ii) purchase money and
similar obligations, (iii) obligations under capital leases, (iv) guarantees,
assumptions or purchase commitments relating to, or other transactions as a
result of which the Company is responsible for the payment of, such indebtedness
of others, (v) renewals, extensions and refunding of any such indebtedness, (vi)
interest or obligations in respect of any such indebtedness accruing after the
commencement of any insolvency or bankruptcy proceedings, and (vii) obligations
associated with derivative products such as interest rate and currency exchange
contracts, foreign exchange contracts, commodity contracts, and similar
arrangements, unless, in each case, the instrument by which the Company
incurred, assumed or guaranteed the indebtedness or obligations described in
clauses (i) through (vii) hereof expressly provides that such indebtedness or
obligation is not senior in right of payment to the Securities.

     "Significant Subsidiary" means a Subsidiary which otherwise meets the tests
      ----------------------                                                    
ascribed to the term in Regulation S-X promulgated by the Commission under the
Securities Act, except that the tests therein shall be based on 20% of total
assets or income instead of 10%, unless the Company owns or controls, directly
or indirectly, at least 75% of the total voting power of such Subsidiary's
shares of Capital Stock entitled (without regard to the occurrence of any
contingency) to vote in the election of directors, managers or trustees thereof
(such percentage to be calculated on a fully diluted basis), in which case the
tests shall be based on 10% of total assets or income.

     "Special Record Date" when used with respect to the payment of any
      -------------------                                              
Defaulted Interest on the Registered Securities of or within any series, means a
date fixed by the Trustee pursuant to Section 307.

     "Stated Maturity" when used with respect to any Security or any installment
      ---------------                                                           
of principal thereof or interest thereon or any Additional Amounts with respect
thereto, 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, or such Additional
Amounts are, due and payable.

     "Subsidiary" means, with respect to any Person, (i) any corporation,
      ----------                                                         
association or other business entity of which more than 50% of the total equity
capital and more than 50% of the total voting power of shares of Capital Stock
entitled (without regard to the occurrence of any contingency) to vote in the
election of directors, managers or trustees thereof is at the time owned or
controlled, directly or indirectly, by such Person or one or more of the other
Subsidiaries of that Person (or a combination thereof) and (ii) any partnership
(a) the sole general partner or the managing general partner of which is such
Person or a Subsidiary of such Person or (b) the only general partners of which
are such Person or one or more Subsidiaries of such Person (or any combination
thereof).

                                       13
<PAGE>
 
     "Trust Indenture Act" 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.

     "Trustee" means the Person named as the "Trustee" in the first paragraph of
      -------                                                                   
this Indenture until a successor Trustee has become such pursuant to the
applicable provisions of this Indenture, and thereafter "Trustee" shall mean or
include each Person who is then acting as a Trustee hereunder; provided,
                                                               -------- 
however, that, if at any time there is more than one such Person, "Trustee" when
- -------                                                                         
used with respect to the Securities of or within any series, shall mean only the
Trustee with respect to the Securities of such series, and no Trustee of
Securities for any series shall be responsible for the acts or omissions of a
Trustee for any other series of Securities.

     "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 a Company Certificate
stating that all conditions precedent, if any, provided for in this Indenture
(including any covenants, compliance with which constitute conditions precedent)
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 (other than certificates provided
pursuant to Section 1009) shall include:

                                       14
<PAGE>
 
          (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 on which the statements or opinions contained in such
     certificate or opinion are based;

          (3)  a statement that, in the opinion of each such individual, he or
     she has made such examination or investigation as is necessary to enable
     him or her 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 or not, 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 in which
                  --------------------------------------                      
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 as 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, on 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 on which his or her 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, on 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 that the certificate or
opinion or representations as to such matters are erroneous.

     If 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 

                                       15
<PAGE>
 
     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 the Outstanding Securities of such series may, alternatively, be
     embodied in and evidenced by the record of such Holders voting in favor
     thereof, either in person or by proxies duly appointed in writing, at any
     meeting of such Holders 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 and, if expressly required herein, to the
     Company. Such instrument or instrument 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 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 or her the execution thereof or by any other means
     acceptable to the Trustee. If 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.

          (d)  The ownership of Bearer Securities may be proved by the
     production of such Bearer Securities or by a certificate executed, as
     depositary, by any trust company, bank, banker or other depositary,
     wherever situated, if such certificate is deemed by the Trustee to be
     satisfactory, showing that at the date therein mentioned such Person had on
     deposit with such depositary, 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 

                                       16
<PAGE>
 
     to be satisfactory. The Trustee and the Company may assume that such
     ownership of any Bearer Security continues until (i) another certificate or
     affidavit bearing a later date issued in respect of the same Bearer
     Security is produced, (ii) such Bearer Security is produced to the Trustee
     by some other Person, (iii) such Bearer Security is surrendered in exchange
     for a Registered Security or (iv) 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 not be
     obligated to do so. Notwithstanding Section 316(c) of the Trust Indenture
     Act, 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 purpose
     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 on such Security.

     SECTION 105. Notices 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 on, given or
furnished to, or filed with:

                                       17
<PAGE>
 
          (1)  the Trustee by any Holder or the Company shall be sufficient for
     every purpose hereunder if in writing and mailed, first class postage
     prepaid, to the Trustee addressed to it at the address of its Corporate
     Trust Office specified in the first paragraph of this Indenture, Attention:
     Corporate Trust Administration; or

          (2)  the Company by the Trustee or 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.

     SECTION 106. Notice to Holders; Waiver. When 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 such Holder's address as it appears
in the Security Register, not later than the latest date, and not earlier than
the earliest date, prescribed for the giving of such notice. In any case in
which 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 is impracticable to give such notice
by mail, then such notification to Holders of Registered Securities as is 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, when this Indenture provides
for notice to Holders of Bearer Securities of any event, such notices 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
and, if the Securities of such series are listed on any securities exchange
outside the United States, in any place at which such Securities are listed on a
securities exchange to the extent that such securities exchange so requires, on
a Business Day, such publication to be not later than the latest date, and not
earlier than the earliest date, 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.

                                       18
<PAGE>
 
     If, by reason of the suspension of publication of any Authorized Newspaper
or Authorized Newspapers or by reason of any other cause, it is impracticable to
publish any notice to Holders of Bearer Securities as provided above, then such
notification to Holders of Bearer Securities as is 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.

     When 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 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 on such waiver.

     SECTION 107. Effect of Headings and Table of Contents. 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. Separability Clause. In case any provision in this Indenture
                  -------------------                                         
or in any Security or any coupon shall be 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 any
                  ---------------------                                     
Security or any coupon, 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. No Personal Liability. No recourse under or on any obligation,
                  ---------------------                                         
covenant or agreement contained in this Indenture or in any Security or any
coupon, or because of any indebtedness evidenced thereby, shall be had against
any promoter, as such or, against any past, present or future director, officer,
employee or shareholder, as such, of the Company or of any successor, either
directly or through the Company or any successor, under any rule of law, 

                                       19
<PAGE>
 
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
thereof and as part of the consideration for the issue of the Securities.

     SECTION 112. Governing Law. THIS INDENTURE AND THE SECURITIES AND ANY
                  -------------                                           
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 TRUST
INDENTURE ACT WHICH, BY THE PROVISIONS THEREOF, ARE DEEMED OR REQUIRED TO BE
PART OF THIS INDENTURE AND SHALL, TO THE EXTENT APPLICABLE, BE GOVERNED BY SUCH
PROVISIONS. IF ANY PROVISION OF THIS INDENTURE LIMITS, QUALIFIES OR CONFLICTS
WITH THE DUTIES IMPOSED BY OPERATION OF SECTION 318(C) OF THE TRUST INDENTURE
ACT, THE IMPOSED DUTIES SHALL CONTROL.

     SECTION 113. Legal Holidays. In any case in which any Interest Payment
                  --------------                                           
Date, Redemption Date, Repayment Date, sinking fund payment date, Stated
Maturity or Maturity of any Security is not a Business Day at any Place of
Payment, then (notwithstanding any other provision of this Indenture or any
Security or any coupon other than a provision in the Securities of any series
which specifically states that such provision shall apply in lieu hereof),
payment of the principal of (and premium or Make-Whole Amount, if any, on) or
interest or Additional Amounts, if any, on such Security need not be made at
such Place of Payment on such date, but 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; provided, however, 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.

     SECTION 114. Counterparts. This Indenture may be executed in several
                  ------------                                           
counterparts, each of which shall be an original and all of which shall
constitute but one and the same instrument.

                                  ARTICLE TWO
                               SECURITIES FORMS

     SECTION 201. Forms of Securities. The Registered Securities, if any, of
                  -------------------                                       
each series and the Bearer Securities, if any, and any coupons of each series,
shall be in substantially the forms as are established in or pursuant to one or
more indentures supplemental hereto or Board Resolutions, 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 

                                       20
<PAGE>
 
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 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.

     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.


                              STATE STREET BANK AND TRUST
                                COMPANY,
                              as Trustee


                              By:__________________________________
                                    Authorized Officer

     SECTION 203. Securities Issuable in Global Form. If Securities of or within
                  ----------------------------------                            
a series are issuable in global form, as specified as contemplated by Section
301, then, notwithstanding clause (8) of Section 301 and the provisions of
Section 302, any such Security shall represent such of the Outstanding
Securities of such series as are specified therein and may provide that it shall
represent the aggregate amount of Outstanding Securities of such series from
time to time endorsed thereon and 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 a Security in global form
to reflect the amount, or any increase or decrease in the amount, of Outstanding
Securities represented thereby shall be made by the Trustee in the manner and in
accordance with instructions given by such Person or Persons 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 Security in permanent global
form in the manner and in accordance with instructions given by the Person or
Persons specified therein or in the applicable Company 

                                       21
<PAGE>
 
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 Security in global form 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 Security in global form if such Security was never
issued and sold by the Company and the Company delivers to the Trustee the
Security in global form 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 premium or Make-
Whole Amount, if any, on) and interest and Additional Amounts, if any, on any
Security in permanent global form shall be made to the Person or Persons
specified therein.

     Notwithstanding the provisions of Section 308 and except as provided in the
preceding paragraph, the Company, the Trustee and any agent of the Company or
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.

                                 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 or pursuant to one or more Board Resolutions, or indentures
supplemental hereto, prior to the issuance of Securities of any series, any or
all of the following, as applicable (each of which (except for the matters set
forth in clauses (1), (2) and (15) below), if so provided, may be determined
from time to time by the Company with respect to unissued Securities of or
within the series when issued from time to time):

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

                                       22
<PAGE>
 
          (2)  any limit on the aggregate principal amount of the Securities of
     or within the series which may be authenticated and delivered under this
     Indenture (except for Securities authenticated and delivered upon
     registration of transfer of, or in exchange for, or in lieu of, other
     Securities of or within the series pursuant to Section 304, 305, 306, 906,
     1107 or 1305);

          (3)  the date or dates, or the method by which such date or dates will
     be determined, on which the principal of the Securities of or within the
     series shall be payable and the amount of principal payable thereon;

          (4)  the rate or rates at which the Securities of or within the series
     shall bear interest, if any, or the method by which such rate or rates
     shall be determined, the date or dates from which such interest shall
     accrue or the method by which such date or dates shall be determined, the
     Interest Payment Dates on which such interest will be payable and the
     Regular Record Date, if any, for the interest payable on any Registered
     Security on any Interest Payment Date, or the method by which such date
     shall be determined, and the basis on which interest shall be calculated if
     other than a 360-day year comprised of twelve 30-day months;

          (5)  the place or places, if any, other than or in addition to the
     Corporate Trust Office where the principal of (and premium or Make-Whole
     Amount, if any, on) and interest and Additional Amounts, if any, on
     Securities of or within the series shall be payable, any Registered
     Securities of or within the series may be surrendered for registration of
     transfer, exchange or conversion and notices or demands to or on the
     Company in respect of the Securities of or within the series and this
     Indenture may be served;

          (6)  the period or periods within which, the price or prices
     (including the premium or Make-Whole Amount, if any) at which, the currency
     or currencies, currency unit or units or composite currency or currencies
     in which, and other terms and conditions upon which Securities of or within
     the series may be redeemed, in whole or in part, at the option of the
     Company, if the Company is to have the option;

          (7)  the obligation, if any, of the Company to redeem, repay or
     purchase Securities of or within the series pursuant to any sinking fund or
     analogous provision or at the option of a Holder thereof, and the period or
     periods within which or the date or dates on which, the price or prices at
     which, the currency or currencies, currency unit or units or composite
     currency or currencies in which, and other terms and conditions upon which
     Securities of or within the series shall be redeemed, repaid or purchased,
     in whole or in part, pursuant to such obligation;

                                       23
<PAGE>
 
          (8)  if other than denominations of $1,000 and any integral multiple
     thereof, the denominations in which any Registered Securities of or within
     the series shall be issuable and, if other than the denomination of $5,000,
     the denomination or denominations in which any Bearer Securities of or
     within the series shall be issuable;

          (9)  if other than the Trustee, the identity of each Security
     Registrar and/or Paying Agent;

          (10) the percentage of the principal amount at which Securities will
     be issued and, if other than the principal amount thereof, the portion of
     the principal amount of Securities of or within the series which shall be
     payable upon declaration of acceleration of the Maturity thereof pursuant
     to Section 502, or, if applicable, the portion of the principal amount of
     Securities which is convertible in accordance with the provisions of this
     Indenture, or the method by which such portion shall be determined;

          (11) if other than Dollars, the Foreign Currency or Currencies in
     which payment of the principal of (and premium or Make-Whole Amount, if
     any, on) or interest or Additional Amounts, if any, on the Securities of or
     within the series shall be payable or in which the Securities of or within
     the series shall be denominated;

          (12) whether the amount of payments of the principal of (and premium
     or Make-Whole Amount, if any, on) or interest or Additional Amounts, if
     any, on the Securities of or within the series may be determined with
     reference to an index, formula or other method (which index, formula or
     method may be based, without limitation, on one or more currencies,
     currency units, composite currencies, commodities, equity indices or other
     indices), and the manner in which such amounts shall be determined;

          (13) whether the principal of (and premium or Make-Whole Amount, if
     any, on) or interest or Additional Amounts, if any, on the Securities of or
     within 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
     (including the Election Date), 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;

                                       24
<PAGE>
 
          (14) provisions, if any, granting special rights to the Holders of
     Securities of or within the series on 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 or
     within 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 Securities of or within 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 or within the
     series may be exchanged for Registered Securities of or within the series
     and vice versa (if permitted by applicable laws and regulations), whether
     any Securities of or within the series are to be issuable initially in
     temporary global form and whether any Securities of or within 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 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 occur, if other than in the manner
     provided in Section 305, and, if Registered Securities of or within the
     series are to be issuable as a global Security, the identity of the
     depositary for such series, and the date as of which any Bearer Securities
     of or within the series and any temporary global Security representing
     Outstanding Securities of or within the series shall be dated if other than
     the date of original issuance of the first Security of the series to be
     issued;

          (17) the Person to whom any interest on any Registered Security of the
     series shall be payable, if other than the Person in whose name such
     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 in Section 304;

          (18) the applicability, if any, of Sections 1402 and/or 1403 to the
     Securities of or within the series and any provisions in modification of,
     in addition to or in lieu of any of the provisions of Article Fourteen;

          (19) 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) 

                                       25
<PAGE>
 
     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;

          (20) if the Securities of or within the series are to be issued upon
     the exercise of debt warrants, the time, manner and place for such
     Securities to be authenticated and delivered;

          (21) whether and under what circumstances the Company will pay
     Additional Amounts as contemplated by Section 1010 on the Securities of or
     within the series to any Holder who is not a United States person
     (including any modification to the definition of such term) in respect of
     any tax, assessment or governmental charge and, if so, whether the Company
     will have the option to redeem such Securities rather than pay such
     Additional Amounts (and the terms of any such option);

          (22) the obligation, if any, of the Company to permit the conversion
     of the Securities of such series into Common Shares or other securities of
     the Company, and the terms and conditions on which such conversion shall be
     effected (including, without limitation, the initial conversion price or
     rate, the conversion period, any adjustment of the applicable conversion
     price and any requirements relative to the reservation of such shares for
     purposes of conversion; and

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

     All Securities of any one series and the coupons appertaining to any Bearer
Securities of such series, if any, shall be substantially identical except, in
the case of Registered or Bearer Securities issued in global form, as to
denomination and except as may otherwise be provided in or pursuant to such
Board Resolution 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 or supplemental
indentures, 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 Company Order for authentication and
delivery of such Securities.

     SECTION 302. Denominations. The Securities of each series shall be issuable
                  -------------                                                 
as Bearer Securities, as Registered Securities or in any combination thereof,
and in such denominations and amounts as are specified as contemplated by
Section 301. With respect to any series 

                                       26
<PAGE>
 
denominated in Dollars, in the absence of any such provisions with respect to
the Securities of any series, the Registered Securities of such series, other
than Registered Securities issued in global form (which may be of any
denomination), shall be issuable in denominations of $1,000 and any integral
multiple thereof and the Bearer Securities of such series, other than Bearer
Securities issued in global form (which may be of any denomination), shall be
issuable in denominations of $5,000.

     SECTION 303. Execution, Authentication, Delivery and Dating. The Securities
                  ----------------------------------------------                
and any coupons shall be executed on behalf of the Company by the Chairman or a
Co-Chairman, Managing Director, Senior Vice President, Vice President or the
Treasurer of the Company, under the Company's corporate seal reproduced thereon,
and attested by the Company's Secretary or one of its Assistant Secretaries. The
signature of any of these officers on the Securities and any 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 and such
coupons.

     Any Securities or any 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 any 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
coupons, executed by the Company, to the Trustee for authentication, together
with a Company Order for the authentication and delivery of such Securities, and
the Trustee shall authenticate and deliver such Securities in accordance with
the Company Order; 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 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 received such Bearer Security has furnished a
certificate to Euroclear or CEDEL, as the case may be, in the form set forth in
Exhibit A-1 to this Indenture or such other certificate as may be specified 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.

     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 of the Securities of any series
are not to be issued at one time and if the Board 

                                       27
<PAGE>
 
Resolution or supplemental indenture establishing such series so permits, 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 the 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 and any
coupons appertaining thereto, the Trustee shall be entitled to receive, and
(subject to Section 315(a) through 315(d) of the Trust Indenture Act) shall be
fully protected in relying on:

          (1)  an Opinion of Counsel complying with Section 102 and stating
that:

               (A)  the form or forms of such Securities and any coupons
          appertaining thereto have been, or will have been upon compliance with
          such procedures as may be specified therein, established in conformity
          with the provisions of this Indenture;

               (B)  the terms of such Securities and any coupons appertaining
          thereto have been, or will have been upon compliance with such
          procedures as may be specified therein, established in conformity with
          the provisions of this Indenture; and

               (C)  such Securities, together with any coupons appertaining
          thereto, when executed by the Company, completed pursuant to such
          procedures as may be specified therein 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 binding obligations of the Company, enforceable in
          accordance with their terms, subject to applicable bankruptcy,
          insolvency, reorganization and other similar laws of general
          applicability relating to or affecting the enforcement of creditors'
          rights generally and to general equitable principles and to such other
          matters as may be specified therein; and

          (2)  a Company Certificate complying with Section 102 and stating that
     all conditions precedent provided for in this Indenture relating to the
     issuance of such Securities have been, or will have been upon compliance
     with such procedures as may be specified therein, complied with and that,
     to the best of the knowledge of the signers of such certificate, no Event
     of Default with respect to such Securities has occurred and is continuing.

                                       28
<PAGE>
 
The Trustee shall not be required to authenticate such Securities 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 a Company Order, an Opinion of Counsel or a
Company Certificate otherwise required pursuant to the preceding paragraph at
the time of issuance of each Security of such series, but such order, opinion
and certificate 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 the Security to which such coupon appertains a certificate of authentication
substantially in the form provided for herein duly executed by the Trustee by
manual signature of an authorized officer, and such certificate on 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 has been
authenticated and delivered hereunder but never issued and sold by the Company,
and the Company delivers 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 or 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.

     SECTION 304. Temporary Securities.
                  -------------------- 

          (a)  Pending the preparation of definitive Securities of any series,
     the Company may execute, and upon a 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 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.

                                       29
<PAGE>
 
          Except in the case of temporary Securities in global form (which shall
     be exchanged in accordance with Section 304(b) or as otherwise provided in
     or pursuant to a Board Resolution), if temporary Securities of any series
     are issued, the Company shall cause definitive Securities of such 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 such series, without charge to the Holder. Upon
     surrender for cancellation of any one or more temporary Securities of any
     series, together with 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 or coupons appertaining thereto of any
     series shall in all respects be entitled to the same benefits under this
     Indenture as definitive Securities or coupons appertaining thereto of such
     series.

          (b)  Unless otherwise provided as contemplated in Section 301, this
     Section 304(b) shall govern the exchange of temporary Securities issued in
     global form other than through the facilities of DTC. 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 depositary or common depositary (the "Common Depositary"), for the
                                                -----------------           
     benefit of Euroclear and CEDEL.

          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 an aggregate principal 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 Depositary 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 the name of Euroclear or CEDEL, as the
     case may be, in exchange for each portion of such temporary global
     Security, an equal aggregate principal amount of definitive Securities of
     or within 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 

                                       30
<PAGE>
 
     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 Common Depository; provided, however, that, unless
                                         --------  -------
     otherwise specified in such temporary global Security, upon such
     presentation by the Common Depositary, 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 A-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 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 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 A-2 to this Indenture (or in such other forms
     as may be established pursuant to Section 301), 

                                       31
<PAGE>
 
     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 in Exhibit A-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 has 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 ceases to be Security Registrar, it shall have the right to examine 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 such 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 Securities
of the same series, of any authorized denominations and of a like aggregate
principal 

                                       32
<PAGE>
 
amount, being 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 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 appertaining thereto. 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 Bearer Security surrenders to any Paying Agent any such missing
coupon in respect of which such a payment has been made, such Holder shall be
entitled to receive the amount of payment; provided, however, that, except as
                                           --------  -------                 
otherwise provided in Section 1002, interest represented by a coupon shall be
payable only upon presentation and surrender of such 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
accordance with the provisions of this Indenture. Whenever any Securities are so

                                       33
<PAGE>
 
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 depositary for any permanent global
Security is 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 and 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 depositary for the applicable global Security
or Securities or if at any time DTC ceases to be a clearing agency registered
under the Exchange Act if so required by applicable law or regulation, the
Company shall appoint a successor depositary with respect to such global
Security or Securities. If (i) a successor depositary 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, (ii) 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 depositary for such global Security or Securities or
(iii) the Company, in its sole discretion, determines at any time that all
Outstanding Securities (but not less than all) Securities 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 (provided, however, that the
                                                   --------  -------
Company may not make such determination during the 40-day restricted period
provided by Regulation S under the Securities Act or during any other similar
period during which the Securities must be held in global form as may be
required by the Securities Act), then, upon surrender of the global Security or
Securities appropriately endorsed, 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 has been given, then without unnecessary delay but in any event
not earlier than the earliest date on which such interest may be so exchanged,
upon surrender of the global Security or Securities appropriately endorsed, 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 depositary as is
specified in the Company Order with respect thereto to the Trustee, as the
Company's agent for such purpose; provided, however, that no
                                  --------  -------
 

                                       34
<PAGE>
 
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 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 before 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 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 which 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 day of the mailing of the relevant notice of redemption, or
(ii) to register the transfer of or exchange any Registered Security so selected

                                       35
<PAGE>
 
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 such series
and like tenor, provided that such Registered Security is simultaneously
                --------                                                
surrendered for redemption, or (iv) to issue, register the transfer of or
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 thereto 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 of their agents 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 is delivered to the Company and 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 of their agents 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 Company 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, on) and interest and Additional Amounts, if any, on any
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.

                                       36
<PAGE>
 
     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 which may be imposed in relation thereto and any other expenses
(including the fees and expenses of the Trustee) connected therewith. Every new
Security of any series and any coupons appertaining thereto 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 any coupons appertaining
thereto or the destroyed, lost or stolen coupon are 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 such series and any coupons
appertaining thereto 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 which is
payable, and is punctually paid or duly provided for, on any Interest Payment
Date shall be paid to the Person in whose name such 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 Depositary, 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.

                                       37
<PAGE>
 
     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.

     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 which is payable, but is not punctually paid or duly
provided for, on any Interest Payment Date ("Defaulted Interest") shall
                                             ------------------        
forthwith cease to be payable to the registered Holder thereof upon 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, as provided in paragraph
(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 provided in this paragraph. 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
     such Holder's 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

                                       38
<PAGE>
 
     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 paragraph (2) below. 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 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 on 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 paragraph, such manner of payment is
     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,
on) and (subject to Sections 305 and 307) interest and Additional Amounts, if
any, 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.

     Title to any Bearer Security and any coupons 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 

                                       39
<PAGE>
 
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.

     None of the Company, the Trustee, any Paying Agent or the Security
Registrar shall have any responsibility or liability for any aspect of the
records relating to or payments made on account of beneficial ownership
interests of a Security in global form 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 depositary, as a Holder, with respect to such
global Security or impair, as between such depositary and owners of beneficial
interests in such global Security, the operation of customary practices
governing the exercise of the rights of such depositary (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 any Securities and coupons surrendered
directly to the Trustee for any such purpose shall be promptly canceled 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 canceled by the Trustee. If
the Company so acquires 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 canceled as provided in this Section, except as expressly
permitted by this Indenture. Canceled 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 Company delivers a Company Order
which directs their return to it.

     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.

                                       40
<PAGE>
 
                                 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 exchange of Securities of such series herein
expressly provided for and any right to receive Additional Amounts, as provided
in Section 1010), and the Trustee, upon receipt of a Company Order and at the
expense of the Company, shall execute proper instruments acknowledging
satisfaction and discharge of this Indenture as to such series when:

     (1)  either:

               (A)  all Securities of such series theretofore authenticated and
          delivered and any coupons appertaining thereto (other than (i) coupons
          appertaining to Bearer Securities surrendered for exchange for
          Registered Securities and maturing after such exchange, whose
          surrender is not required or has been waived as provided in Section
          305, (ii) Securities of such series and coupons appertaining thereto
          which have been destroyed, lost or stolen and which have been replaced
          or paid as provided in Section 306, (iii) coupons appertaining to
          Securities called for redemption and maturing after the relevant
          Redemption Date, whose surrender has been waived as provided in
          Section 1106, and (iv) Securities of such series and coupons
          appertaining thereto for whose payment money has theretofore been
          deposited in trust or segregated and held in trust by the Company and
          thereafter repaid to the Company or discharged from such trust, as
          provided in Section 1003) have been delivered to the Trustee for
          cancellation; or

               (B)  all Securities of such series and, in the case of clauses
          (i) and (ii) below, any coupons appertaining thereto not theretofore
          delivered to the Trustee for cancellation:

                    (i)    have become due and payable, or

                    (ii)   will become due and payable at their Stated Maturity
               within one year, or

                    (iii)  if redeemable at the option of the Company, are to be
               called for redemption within one year under arrangements
               satisfactory to the Trustee for the giving of notice of
               redemption by the Trustee in the name, and at the expense, of the
               Company,

                                       41
<PAGE>
 
               and the Company, in the case of clause (i), (ii) or (iii) above,
               has irrevocably deposited or caused to be deposited with the
               Trustee funds in trust for the purpose, in the currency or
               currencies, currency unit or units or composite currency or
               currencies in which the Securities of such series are payable,
               and in an amount sufficient to pay and discharge the entire
               indebtedness on such Securities and such coupons not theretofore
               delivered to the Trustee for cancellation, for the principal (and
               premium or Make-Whole Amount, if any) and interest and Additional
               Amounts, if any, to the date of such deposit (in the case of
               Securities which have become due and payable) or the Stated
               Maturity or Redemption Date, as the case may be;

               (2)  The Company has paid or caused to be paid all other sums
     payable hereunder by the Company; and

               (3)  The Company has delivered to the Trustee a Company
     Certificate and an Opinion of Counsel, each stating that all conditions
     precedent herein provided for relating to the satisfaction and discharge of
     this Indenture as to such series have been complied with.

Notwithstanding the satisfaction and discharge of this Indenture, the
obligations of the Company to the Trustee and any predecessor Trustee under
Section 606, the obligations of the Company to any Authenticating Agent under
Section 611 and, if money has been deposited with and held by the Trustee
pursuant to subparagraph (B) of paragraph (1) of this Section, the obligations
of the Trustee under Section 402 and the last paragraph of Section 1003, shall
survive.

     SECTION 402. Application of Trust Funds. Subject to the provisions of the
                  --------------------------                                  
last paragraph of Section 1003, all money deposited with the Trustee pursuant to
Section 401 shall be held in trust and applied by it, in accordance with the
provisions of the Securities, the coupons and this Indenture, to the payment,
either directly or through any Paying Agent (including the Company acting as its
own Paying Agent) as the Trustee may determine, to the Persons entitled thereto,
of the principal (and premium or Make-Whole Amount, if any) and interest and
Additional Amounts, if any, for the payment of which such money has been
deposited with or received by the Trustee, but such money need not be segregated
from other funds except to the extent required by law.

                                 ARTICLE FIVE
                                   REMEDIES

     SECTION 501. Events of Default. Subject to any modifications, additions or
                  -----------------                                            
deletions relating to any series of Securities as contemplated pursuant to
Section 301, "Event of Default," whenever used herein with respect to any
              ----------------                                           
particular series of Securities, means any one of the 

                                       42
<PAGE>
 
following events (whatever the reason for such Event of Default and whether or
not it is voluntary or involuntary or effected by operation of law or pursuant
to any judgment, decree or order of any court or any order, rule or regulation
of any administrative or governmental body):

          (1)  default in the payment of any interest on or any Additional
     Amounts payable in respect of any Security of or within such series or of
     any coupon appertaining thereto, when such interest, Additional Amounts or
     coupon becomes due and payable, and continuance of such default for a
     period of 30 days; or

          (2)  default in the payment of the principal of (or premium or Make-
     Whole Amount, if any, on) any Security of such series when due and payable
     at its Maturity; or

          (3)  default in the deposit of any sinking fund payment, when and as
     due by the terms of any Security of such series; or

          (4)  default in the performance, or breach, of any covenant or
     warranty of the Company in this Indenture with respect to any Security of
     such series (other than a covenant or warranty a default in the performance
     of which or the breach of which is elsewhere specifically provided for in
     this Section), and continuance of such default or breach for a period of 60
     days after there has been given, by registered or certified mail, to the
     Company by the Trustee or to the Company and the Trustee by the Holders of
     at least 25% in principal amount of the Outstanding Securities of such
     series, a written notice specifying such default or breach and requiring it
     to be remedied and stating that such notice is a "Notice of Default"
                                                       -----------------
     hereunder; or

          (5)  default under any bond, debenture, note or other evidence of
     indebtedness of the Company or under any mortgage, indenture or other
     instrument of the Company (including a default with respect to Securities
     of any series other than such series) under which there may be issued or by
     which there may be secured any indebtedness of the Company (or by any
     Significant Subsidiary, the repayment of which the Company has guaranteed
     or for which the Company is directly responsible or liable as obligor or
     guarantor), whether such indebtedness now exists or is hereafter created,
     which, after the termination of any applicable grace or cure period, (a)
     constitutes a Payment Default or (b) results in the acceleration of such
     indebtedness prior to its express maturity and, in each case, the principal
     amount of any indebtedness, together with the principal amount of any other
     such indebtedness under which there has been a Payment Default or which has
     been so accelerated, aggregates $25,000,000 or more; provided that, in
     calculating the aggregate principal amount of any such indebtedness, the
     Hedging Obligations of any Person under which there has been a Payment
     Default or which has been so accelerated shall not be netted against any
     other Hedging Obligation of such Person, within a period

                                       43
<PAGE>
 
     of 10 days after there has been given, by registered or certified mail, to
     the Company by the Trustee or to the Company and the Trustee by the Holders
     of at least 10% in principal amount of the Outstanding Securities of such
     series a written notice specifying such default and requiring the Company
     to cause such indebtedness to be discharged or cause such acceleration to
     be rescinded or annulled and stating that such notice is a "Notice of
                                                                 ---------
     Default" hereunder; or
     -------

          (6)  the entry by a court of competent jurisdiction of one or more
     final judgments, orders or decrees against the Company or any Significant
     Subsidiary of the Company in an aggregate amount (excluding amounts covered
     by insurance) in excess of $25,000,000 and such judgments, orders or
     decrees remain undischarged, unstayed and unsatisfied in an aggregate
     amount (excluding amounts covered by insurance) in excess of $25,000,000
     for a period of 60 consecutive days; or

          (7)  the Company or any Significant Subsidiary of the Company pursuant
     to or within the meaning of any Bankruptcy Law:

               (A)  commences a voluntary case,

               (B)  consents to the entry of an order for relief against it in
          an involuntary case,

               (C)  consents to the appointment of a Custodian of it or for all
          or substantially all of its property, or

               (D)  makes a general assignment for the benefit of its creditors;
          or

          (8)  a court of competent jurisdiction enters an order or decree under
     any Bankruptcy Law that:

               (A)  is for relief against the Company or any Significant
          Subsidiary of the Company in an involuntary case,

               (B)  appoints a Custodian of the Company or any Significant
          Subsidiary of the Company or for all or substantially all of its
          property, or

               (C)  orders the liquidation of the Company or any Significant
          Subsidiary of the Company,

     and the order or decree remains unstayed and in effect for 90 days; or

                                       44
<PAGE>
 
          (9)  any other Event of Default provided with respect to Securities of
     such series.

As used in this Section 501, the term "Bankruptcy Law" means Title 11, U.S. Code
                                       --------------                           
or any similar Federal or state law for the relief of debtors and the term
                                                                          
"Custodian" means any receiver, trustee, assignee, liquidator or other similar
 ---------                                                                    
official under any Bankruptcy Law.

     SECTION 502. Acceleration of Maturity; Rescission and Annulment. If an
                  --------------------------------------------------       
Event of Default (other than an Event of Default set forth in Section 501(7) or
(8)) with respect to Securities of any series at the time Outstanding occurs and
is continuing, then and in every such case, unless the principal of all of the
Outstanding Securities of such series already has become due and payable, the
Trustee or the Holders of not less than 25% in principal amount of the
Outstanding Securities of such series may declare the principal (or, if any
Securities are Original Issue Discount Securities or Indexed Securities, such
portion of the principal as may be specified in the terms thereof) of, and the
Make-Whole Amount, if any, on, all the Securities of such series to be due and
payable immediately, by a notice in writing to the Company (and to the Trustee
if given by the Holders), and upon any such declaration such principal or
specified portion thereof shall become immediately due and payable. If an Event
of Default set forth in Section 501(7) or (8) occurs and is continuing with
respect to the Securities of any series, then in each such case, the principal
of, and the Make-Whole Amount, if any, on, all the Securities of such series
shall be due and payable immediately, without notice to the Company.

     At any time after such a declaration of acceleration with respect to
Securities of any series has been made and before a judgment or decree for
payment of the money due has been obtained by the Trustee as hereinafter
provided in this Article, the Holders of a majority in principal amount of the
Outstanding Securities of such series, by written notice to the Company and the
Trustee, may rescind and annul such declaration and its consequences if:

          (1)  The Company has paid or deposited with the Trustee a sum
     sufficient to pay, in the currency, currency unit or composite currency in
     which the Securities of such series are payable (except as otherwise
     specified pursuant to Section 301 for the Securities of such series):

               (A)  all overdue installments of interest on and any Additional
          Amounts payable in respect of all Outstanding Securities of such
          series and any coupons appertaining thereto;

               (B)  the principal of (and premium or Make-Whole Amount, if any,
          on) any Outstanding Securities of such series which have become due
          otherwise than by such declaration of acceleration and interest
          thereon at the rate or rates borne by or provided for in such
          Securities;

                                       45
<PAGE>
 
               (C)  to the extent that payment of such interest is lawful,
          interest on overdue installments of interest and any Additional
          Amounts at the rate or rates borne by or provided for in such
          Securities; and

               (D)  all sums paid or advanced by the Trustee hereunder and the
          reasonable compensation, expenses, disbursements and advances of the
          Trustee, its agents and counsel; and

          (2)  all Events of Default with respect to Securities of such series,
     other than the nonpayment of the principal of (or premium or Make-Whole
     Amount, if any, on) or interest or Additional Amounts, if any, on
     Securities of such series which have become due solely by such declaration
     of acceleration, have been cured or waived as provided in Section 513.

No such rescission shall affect any subsequent default or impair any right
resulting therefrom.

     SECTION 503. Collection of Indebtedness and Suits for Enforcement by
                  -------------------------------------------------------
Trustee. The Company covenants that if:
- -------                                

          (1)  default is made in the payment of any installment of interest or
     Additional Amounts, if any, on any Security of any series or any coupon
     appertaining thereto when such interest or Additional Amount becomes due
     and payable and such default continues for a period of 30 days, or

          (2)  default is made in the payment of the principal of (or premium or
     Make-Whole Amount, if any, on) any Security of any series at its Maturity,

then the Company shall, upon demand of the Trustee, pay to the Trustee, for the
benefit of the Holders of the Securities of such series and any such coupons,
the whole amount then due and payable on such Securities and any such coupons
for principal (and premium or Make-Whole Amount, if any) and interest and
Additional Amounts, if any, with interest on any overdue principal (and premium
or Make-Whole Amount, if any) and, to the extent that payment of such interest
is legally enforceable, on any overdue installments of interest or Additional
Amounts, if any, at the rate or rates borne by or provided for in such
Securities, and, in addition thereto, such further amount as is sufficient to
cover the costs and expenses of collection, including the reasonable
compensation, expenses, disbursements and advances of the Trustee, its agents
and counsel.

     If the Company fails to pay such amounts forthwith upon such demand, the
Trustee, in its own name and as trustee of an express trust, may institute a
judicial proceeding for the collection of the sums so due and unpaid, and may
prosecute such proceeding to judgment or 

                                       46
<PAGE>
 
final decree, and may enforce the same against the Company or any other obligor
on the Securities of such series and collect the moneys adjudged or decreed to
be payable in the manner provided by law out of the property of the Company or
any other obligor on the Securities of such series, wherever situated.

     If an Event of Default with respect to Securities of any series occurs and
is continuing, the Trustee may in its discretion proceed to protect and enforce
its rights and the rights of the Holders of Securities of such series and any
coupons appertaining thereto by such appropriate judicial proceedings as the
Trustee deems most effectual to protect and enforce any such rights, whether for
the specific enforcement of any covenant or agreement in this Indenture or in
aid of the exercise of any power granted herein, or to enforce any other proper
remedy.

     SECTION 504. Trustee May File Proofs of Claim. In case of the pendency of
                  --------------------------------                            
any receivership, insolvency, liquidation, bankruptcy, reorganization,
arrangement, adjustment, composition or other judicial proceeding relative to
the Company or any other obligor on the Securities of such series or the
property of the Company or of such other obligor or their creditors, the Trustee
(irrespective of whether the principal of the Securities of any series is then
due and payable as therein expressed or by declaration or otherwise and
irrespective of whether the Trustee has made any demand on the Company for the
payment of overdue principal, premium or Make-Whole Amount, if any, or interest
or Additional Amounts, if any) shall be entitled and empowered, by intervention
in such proceeding or otherwise:

          (1)  to file and prove a claim for the whole amount, or such lesser
     amount as may be provided for in the Securities of such series, of
     principal (and premium or Make-Whole Amount, if any) and interest and
     Additional Amounts, if any, owing and unpaid in respect of the Securities
     of such series and to file such other papers or documents and take such
     other action, including participating as a member of any official creditors
     committee appointed in the matter, as it may deem necessary or advisable in
     order to have the claims of the Trustee (including any claim for the
     reasonable compensation, expenses, disbursements and advances of the
     Trustee, its agents and counsel) and of the Holders allowed in such
     judicial proceeding, and

          (2)  to collect and receive any moneys or other property payable or
     deliverable on any such claims and to distribute the same;

and any custodian, receiver, assignee, trustee, liquidator, sequestrator (or
other similar official) in any such judicial proceeding is hereby authorized by
each Holder of Securities of such series and any coupons appertaining thereto to
make such payments to the Trustee, and in the event that the Trustee consents to
the making of such payments directly to the Holders, to pay to the Trustee any
amount due to it for the reasonable compensation, expenses, disbursements and

                                       47
<PAGE>
 
advances of the Trustee and any predecessor Trustee, their agents and counsel,
and any other amounts due the Trustee or any predecessor Trustee under Section
606.

     Nothing herein contained shall be deemed to authorize the Trustee to
authorize or consent to or accept or adopt on behalf of any Holder of a Security
or coupon any plan of reorganization, arrangement, adjustment or composition
affecting the Securities or coupons or the rights of any Holder thereof, or to
authorize the Trustee to vote in respect of the claim of any Holder of a
Security or coupon in any such proceeding.

     SECTION 505. Trustee May Enforce Claims Without Possession of Securities or
                  --------------------------------------------------------------
Coupons. All rights of action and claims under this Indenture or any of the
- -------                                                                    
Securities or any coupons may be prosecuted and enforced by the Trustee without
the possession of any of the Securities or coupons or the production thereof in
any proceeding relating thereto, and any such proceeding instituted by the
Trustee shall be brought in its own name as trustee of an express trust, and any
recovery of judgment shall, after provision for the payment of the reasonable
compensation, expenses, disbursements and advances of the Trustee, its agents
and counsel, be for the ratable benefit of the Holders of the Securities and
coupons in respect of which such judgment has been recovered.

     SECTION 506. Application of Money Collected. Any money collected by the
                  ------------------------------                            
Trustee pursuant to this Article shall be applied in the following order, at the
date or dates fixed by the Trustee and, in case of the distribution of such
money on account of principal (or premium or Make-Whole Amount, if any) or
interest or Additional Amounts, if any, on presentation of the Securities or
coupons, or both, as the case may be, and the notation thereon of the payment if
only partially paid and upon surrender thereof if fully paid:

          (1)  to the payment of all amounts due the Trustee and any predecessor
     Trustee under Section 606;

          (2)  to the payment of the amounts then due and unpaid on the
     Securities and coupons for principal (and premium or Make-Whole Amount, if
     any) and interest and Additional Amounts, if any, payable, in respect of
     which or for the benefit of which such money has been collected, ratably,
     without preference or priority of any kind, according to the aggregate
     amounts due and payable on such Securities and coupons for principal (and
     premium or Make-Whole Amount, if any) and interest and Additional Amounts,
     if any, respectively; and

          (3)  to the payment of the remainder, if any, to the Company.

     SECTION 507. Limitation on Suits. No Holder of any Security of any series
                  -------------------                                         
or any coupon appertaining thereto shall have any right to institute any
proceeding, judicial or 

                                       48
<PAGE>
 
otherwise, with respect to this Indenture, or for the appointment of a receiver
or trustee, or for any other remedy hereunder, unless:

          (1)  such Holder has previously given written notice to the Trustee of
     a continuing Event of Default with respect to the Securities of such
     series;

          (2)  the Holders of not less than 25% in principal amount of the
     Outstanding Securities of such series have made written request to the
     Trustee to institute proceedings in respect of such Event of Default in its
     own name as Trustee hereunder;

          (3)  such Holder or Holders have offered to the Trustee reasonable
     indemnity against the costs, expenses and liabilities to be incurred in
     compliance with such request;

          (4)  the Trustee for 60 days after its receipt of such notice, request
     and offer of indemnity has failed to institute any such proceeding; and

          (5)  no direction inconsistent with such written request has been
     given to the Trustee during such 60-day period by the Holders of a majority
     in principal amount of the Outstanding Securities of such series;

it being understood and intended that no one or more of such Holders shall have
any right in any manner whatever by virtue of, or by availing of, any provision
of this Indenture to affect, disturb or prejudice the rights of any other of
such Holders, or to obtain or to seek to obtain priority or preference over any
other of such Holders or to enforce any right under this Indenture, except in
the manner herein provided and for the equal and ratable benefit of all such
Holders.

     SECTION 508. Unconditional Right of Holders to Receive Principal, Premium
                  ------------------------------------------------------------
or Make-Whole Amount, Interest and Additional Amounts. Notwithstanding any other
- -----------------------------------------------------                           
provision in this Indenture, the Holder of any Security or coupon shall have the
right which is absolute and unconditional to receive payment of the principal of
(and premium or Make-Whole Amount, if any, on ) and (subject to Sections 305 and
307) interest and Additional Amounts, if any, on such Security or payment of
such coupon on or after the respective due dates expressed in such Security or
coupon (or, in the case of redemption, on the Redemption Date) and to institute
suit for the enforcement of any such payment, and such rights shall not be
impaired or affected without the consent of such Holder.

     SECTION 509. Restoration of Rights and Remedies. If the Trustee or any
                  ----------------------------------                       
Holder of a Security or coupon has instituted any proceeding to enforce any
right or remedy under this Indenture and such proceeding has been discontinued
or abandoned for any reason, or has been determined adversely to the Trustee or
to such Holder, then and in every such case the 

                                       49
<PAGE>
 
Company, the Trustee and the Holders of Securities and coupons shall, subject to
any determination in such proceeding, be restored severally and respectively to
their former positions hereunder and thereafter all rights and remedies of the
Trustee and the Holders shall continue as though no such proceeding had been
instituted.

     SECTION 510. Rights and Remedies Cumulative. Except as otherwise provided
                  ------------------------------                              
with respect to the replacement or payment of mutilated, destroyed, lost or
stolen Securities or coupons in the last paragraph of Section 306, no right or
remedy herein conferred on or reserved to the Trustee or to the Holders of
Securities or coupons is intended to be exclusive of any other right or remedy,
and every right and remedy shall, to the extent permitted by law, be cumulative
and in addition to every other right and remedy given hereunder or now or
hereafter existing at law or in equity or otherwise. The assertion or employment
of any right or remedy hereunder, or otherwise, shall not prevent the concurrent
assertion or employment of any other appropriate right or remedy.

     SECTION 511. Delay or Omission Not Waiver. No delay or omission of the
                  ----------------------------                             
Trustee or of any Holder of any Security or coupon to exercise any right or
remedy accruing upon any Event of Default shall impair any such right or remedy
or constitute a waiver of any such Event of Default or an acquiescence therein.
Every right and remedy given by this Article or by law to the Trustee or to the
Holders may be exercised from time to time, and as often as may be deemed
expedient, by the Trustee or by the Holders of Securities or coupons, as the
case may be.

     SECTION 512. Control by Holders of Securities. The Holders of not less than
                  --------------------------------                              
a majority in principal amount of the Outstanding Securities of any series shall
have the right to direct the time, method and place of conducting any proceeding
for any remedy available to the Trustee, or exercising any trust or power
conferred on the Trustee with respect to the Securities of such series, provided
                                                                        --------
that:

          (1)  such direction is not in conflict with any rule of law or with
     this Indenture,

          (2)  the Trustee may take any other action deemed proper by the
     Trustee which is not inconsistent with such direction, and

          (3)  the Trustee need not take any action which might involve it in
     personal liability or be unduly prejudicial to the Holders of Securities of
     such series not joining therein (but the Trustee shall have no obligation
     as to the determination of such undue prejudice).

     SECTION 513. Waiver of Past Defaults. The Holders of at least a majority in
                  -----------------------                                       
principal amount of the Outstanding Securities of any series may on behalf of
the Holders of all the 

                                       50
<PAGE>
 
Securities of such series and any coupons appertaining thereto waive any past
default hereunder with respect to such series and its consequences, except a
default:

          (1)  in the payment of the principal of (or premium or Make-Whole
     Amount, if any, on) or interest or Additional Amounts, if any, on any
     Security of such series or any coupons appertaining thereto, or

          (2)  in respect of a covenant or provision hereof which under Article
     Nine cannot be modified or amended without the consent of the Holder of
     each Outstanding Security of such series affected thereby.

     Upon any such waiver, such default shall cease to exist, and any Event of
Default arising therefrom shall be deemed to have been cured, for every purpose
of this Indenture; but no such waiver shall extend to any subsequent or other
default or Event of Default or impair any right resulting therefrom.

     SECTION 514. Waiver of Usury, Stay or Extension Laws. The Company covenants
                  ---------------------------------------                       
(to the extent which it may lawfully do so) that it shall not at any time insist
on, or plead, or in any manner whatsoever claim or take the benefit or advantage
of, any usury, stay or extension law wherever enacted, now or at any time
hereafter in force, which may affect the covenants or the performance of this
Indenture; and the Company (to the extent which it may lawfully do so) hereby
expressly waives all benefit or advantage of any such law, and covenants that it
shall not hinder, delay or impede the execution of any power herein granted to
the Trustee, but shall suffer and permit the execution of every such power as
though no such law had been enacted.

     SECTION 515. Undertaking for Costs. All parties to this Indenture agree,
                  ---------------------                                      
and each Holder of any Security by such Holder's acceptance thereof shall be
deemed to have agreed, that any court may in its discretion require, in any suit
for the enforcement of any right or remedy under this Indenture, or in any suit
against the Trustee for any action taken or omitted by it as Trustee, the filing
by any party litigant in such suit of any undertaking to pay the costs of such
suit, and that such court may in its discretion assess reasonable costs,
including reasonable attorneys' fees, against any party litigant in such suit
having due regard to the merits and good faith of the claims or defenses made by
such party litigant; but the provisions of this Section shall not apply to any
suit instituted by the Trustee, to any suit instituted by any Holder, or group
of Holders, holding in the aggregate more than 10% in principal amount of the
Outstanding Securities, or to any suit instituted by any Holder for the
enforcement of the payment of the principal of (or premium or Make-Whole Amount,
if any, on) or interest or Additional Amounts, if any, on any Security on or
after the respective Stated Maturities expressed in such Security (or, in the
case of redemption, on or after the Redemption Date).

                                       51
<PAGE>
 
                                  ARTICLE SIX
                                  THE TRUSTEE

     SECTION 601. Notice of Defaults. Within 90 days after the occurrence of any
                  ------------------                                            
default hereunder with respect to the Securities of any series, the Trustee
shall give to the Holders of the Securities of such series, in the manner and to
the extent provided in Section 313(c) of the Trust Indenture Act, notice of such
default hereunder known to the Trustee, unless such default has been cured or
waived; provided, however, that, except in the case of a default in the payment
        --------  -------                                                      
of the principal of (or premium or Make-Whole Amount, if any, on) or interest or
Additional Amounts, if any, on any Security of such series, or in the payment of
any sinking fund installment with respect to the Securities of such series, the
Trustee shall be protected in withholding such notice if and so long as
Responsible Officers of the Trustee in good faith determine that the withholding
of such notice is in the interests of the Holders of the Securities and coupons
of such series; and provided, further, that in the case of any default or breach
                    --------  -------                                           
of the character specified in clause (4) of Section 501 with respect to the
Securities of such series and any coupons appertaining thereto, no such notice
to Holders shall be given until at least 60 days after the occurrence thereof.
For the purposes of this Section, the term "default" means any event which is,
                                            -------                           
or after notice or lapse of time or both would become, an Event of Default with
respect to the Securities of such series.

     SECTION 602. Certain Rights of Trustee. Subject to the provisions of
                  -------------------------                              
Section 315(a) through 315(d) of the Trust Indenture Act:

          (1)  the Trustee shall perform only such duties as are expressly
     undertaken by it to perform under this Indenture;

          (2)  the Trustee may rely and shall be protected in acting or
     refraining from acting upon any resolution, certificate, statement,
     instrument, opinion, report, notice, request, direction, consent, order,
     bond, debenture, note, coupon or other paper or document believed by it to
     be genuine and to have been signed or presented by the proper party or
     parties;

          (3)  any request or direction of the Company mentioned herein shall be
     sufficiently evidenced by a Company Request or Company Order (other than
     delivery of any Security, together with any coupons appertaining thereto,
     to the Trustee for authentication and delivery pursuant to Section 303,
     which shall be sufficiently evidenced as provided therein) and any
     resolution of the Board of Directors shall be sufficiently evidenced by a
     Board Resolution;

          (4)  whenever, in the administration of this Indenture, the Trustee
     deems it desirable that a matter be proved or established prior to taking,
     suffering or omitting any 

                                       52
<PAGE>
 
     action hereunder, the Trustee (unless other evidence is specifically
     prescribed herein) may, in the absence of bad faith on its part, rely on a
     Company Certificate;

          (5)  the Trustee may consult with counsel and the advice of such
     counsel or any Opinion of Counsel shall be full and complete authorization
     and protection in respect of any action taken, suffered or omitted by it
     hereunder in good faith and in reliance thereon;

          (6)  the Trustee shall be under no obligation to exercise any of the
     rights or powers vested in it by this Indenture at the request or direction
     of any of the Holders of Securities of any series or any coupons
     appertaining thereto pursuant to this Indenture, unless such Holders have
     offered to the Trustee reasonable security or indemnity against the costs,
     expenses and liabilities which might be incurred by it in compliance with
     such request or direction;

          (7)  the Trustee shall not be bound to make any investigation into the
     facts or matters stated in any resolution, certificate, statement,
     instrument, opinion, report, notice, request, direction, consent, order,
     bond, debenture, note, coupon or other paper or document, but the Trustee,
     in its discretion, may make such further inquiry or investigation into such
     facts or matters as it may see fit, and, if the Trustee determines to make
     such further inquiry or investigation, it shall be entitled to examine the
     books, records and premises of the Company, personally or by agent or
     attorney;

          (8)  the Trustee may execute any of the trusts or powers hereunder or
     perform any duties hereunder either directly or by or through agents or
     attorneys and the Trustee shall not be responsible for any misconduct or
     negligence on the part of any agent or attorney appointed with due care by
     it hereunder;

          (9)  the Trustee shall not be liable for any action taken, suffered or
     omitted by it in good faith and reasonably believed by it to be authorized
     or within the discretion or rights or powers conferred on it by this
     Indenture;

          (10) The Trustee shall not be deemed to have knowledge of any event or
     fact upon the occurrence of which it may be required to take action
     hereunder unless a Responsible Officer of the Trustee has actual knowledge
     of the occurrence of such event or fact; and

          (11) The Trustee shall not be required to expend or risk its own funds
     or otherwise incur any financial liability in the performance of any of its
     duties hereunder, or in the exercise of any of its rights or powers, if it
     has reasonable grounds for

                                       53
<PAGE>
 
     believing that repayment of such funds or adequate indemnity against such
     risk or liability is not reasonably assured to it.

     SECTION 603. Not Responsible for Recitals or Issuance of Securities. The
                  ------------------------------------------------------     
recitals contained herein and in the Securities, except the Trustee's
certificate of authentication, and in any coupons shall be taken as the
statements of the Company and neither the Trustee nor any Authenticating Agent
assumes any responsibility for their correctness. The Trustee makes no
representations as to the validity or sufficiency of this Indenture or of the
Securities or any coupons, except that the Trustee represents that it is duly
authorized to execute and deliver this Indenture, authenticate the Securities
and perform its obligations hereunder. Neither the Trustee nor any
Authenticating Agent shall be accountable for the use or application by the
Company of Securities or the proceeds thereof.

     SECTION 604. May Hold Securities. The Trustee, any Paying Agent, Security
                  -------------------                                         
Registrar, Authenticating Agent or any other agent of the Company, in its
individual or any other capacity, may become the owner or pledgee of Securities
and coupons and, subject to Sections 310(b) and 311 of the Trust Indenture Act,
may otherwise deal with the Company with the same rights it would have if it
were not Trustee, Paying Agent, Security Registrar, Authenticating Agent or such
other agent.

     SECTION 605. Money Held in Trust; Permitted Investments. Money held by the
                  ------------------------------------------                   
Trustee in trust hereunder need not be segregated from other funds except to the
extent required by law. The Trustee shall be under no liability for interest on,
or investment of, any money received by it hereunder except as otherwise agreed
with and for the sole benefit of the Company.

     Pending their use under this Indenture, moneys held by the Trustee
hereunder may be invested in Permitted Investments maturing or redeemable at the
option of the holder at or before the time when such moneys are expected to be
needed by the Trustee and shall be so invested pursuant to a Company Order if no
Event of Default known to the Trustee then exists under this Indenture and
otherwise at the discretion of the Trustee. Any investment pursuant to this
Section 605 shall be held by the Trustee as a part of the moneys held by the
Trustee hereunder, as applicable, and shall be sold or redeemed to the extent
necessary to make payments or transfers or anticipated payments from such
moneys.

     The Trustee shall be entitled to rely on all written investment
instructions provided by the Company hereunder, and shall have no duty to
monitor the compliance thereof with the restrictions set forth herein. The
Trustee shall have no responsibility or liability for any depreciation in the
value of any investment or for any loss, direct or indirect, resulting from any
investment made in accordance with a Company Order. The Trustee shall be without
liability to the Company or any Holder or any other person in the event that any
investment made in

                                       54
<PAGE>
 
accordance with a Company Order shall cause any person to incur any liability or
rebates or other monies payable pursuant to the Internal Revenue Code of 1986,
as amended.

     Any interest realized on investments and any profit realized upon the sale
or other disposition thereof shall be credited to moneys held by the Trustee
hereunder and any loss shall be charged thereto.

     SECTION 606. Compensation and Reimbursement. The Company agrees:
                  ------------------------------                     

          (1)  to pay to the Trustee from time to time reasonable compensation
     for all services rendered by it hereunder (which compensation shall not be
     limited by any provision of law in regard to the compensation of a trustee
     of an express trust);

          (2)  except as otherwise expressly provided herein, to reimburse each
     of the Trustee and any predecessor Trustee upon its request for all
     reasonable expenses, disbursements and advances incurred or made by it in
     connection with its administration of the trust hereunder (including the
     reasonable compensation and the expenses and disbursements of its agents
     and counsel), except to the extent any such expense, disbursement or
     advance may be attributable to its negligence or bad faith; and

          (3)  to indemnify each of the Trustee and any predecessor Trustee for,
     and to hold it harmless against, any loss, liability or expense, arising
     out of or in connection with the acceptance or administration of the trust
     or trusts or the performance of its duties hereunder, including the costs
     and expenses of defending itself against any claim or liability in
     connection with the exercise or performance of any of its powers or duties
     hereunder except to the extent any such loss, liability or expense may be
     attributable to its own negligence or bad faith.

     As security for the performance of the obligations of the Company under
this Section, the Trustee shall have a lien prior to the Securities on all
property and funds held or collected by the Trustee as such, except funds held
in trust for the payment of principal of (or premium or Make-Whole Amount, if
any, on) or interest or Additional Amounts, if any, on particular Securities or
any coupons.

     The provisions of this Section shall survive the termination of this
Indenture.

     SECTION 607. Trustee Eligibility; Conflicting Interests. There shall at all
                  ------------------------------------------                    
times be a Trustee hereunder which is eligible to act as Trustee under Section
310(a)(1) of the Trust Indenture Act and has a combined capital and surplus of
at least $50,000,000. If such Trustee publishes reports of condition at least
annually, pursuant to law or the requirements of Federal, State, Territorial or
District of Columbia supervising or examining authority, then for the 

                                       55
<PAGE>
 
purposes of this Section, the combined capital and surplus of such Trustee shall
be deemed to be its combined capital and surplus as set forth in its most recent
report of condition so published. No obligor on the Securities or Affiliate of
any such obligor shall serve as Trustee on such Securities. If at any time the
Trustee ceases to be eligible in accordance with the provisions of this Section,
it shall resign immediately in the manner and with the effect hereinafter
specified in this Article.

     SECTION 608. Resignation and Removal; Appointment of Successor.
                  ------------------------------------------------- 

          (a)  No resignation or removal of the Trustee and no appointment of a
     successor Trustee pursuant to this Article shall become effective until the
     acceptance of appointment by the successor Trustee in accordance with the
     applicable requirements of Section 609.

          (b)  The Trustee may resign at any time with respect to the Securities
     of one or more series by giving written notice thereof to the Company. If
     an instrument of acceptance by a successor Trustee has not been delivered
     to the Trustee within 30 days after the giving of such notice of
     resignation, the resigning Trustee may petition any court of competent
     jurisdiction for the appointment of a successor Trustee.

          (c)  The Trustee may be removed at any time with respect to the
     Securities of any series by Act of the Holders of a majority in principal
     amount of the Outstanding Securities of such series delivered to the
     Trustee and the Company.

          (d)  If at any time:

               (1)  the Trustee fails to comply with the provisions of Section
          310(b) of the Trust Indenture Act after written request therefor by
          the Company or any Holder of a Security who has been a bona fide
          Holder of a Security for at least six months, or

               (2)  the Trustee ceases to be eligible under Section 607 and
          fails to resign after written request therefor by the Company or any
          Holder of a Security who has been a bona fide Holder of a Security for
          at least six months, or

               (3)  the Trustee becomes incapable of acting or is adjudged a
          bankrupt or insolvent or a receiver of the Trustee or of its property
          is appointed or any public officer takes charge or control of the
          Trustee or of its property or affairs for the purpose of
          rehabilitation, conservation or liquidation,

                                       56
<PAGE>
 
     then, in any such case, (i) the Company, by or pursuant to a Board
     Resolution, may remove the Trustee and appoint a successor Trustee with
     respect to all Securities, or (ii) subject to Section 315(e) of the Trust
     Indenture Act, any Holder of a Security who has been a bona fide Holder of
     a Security for at least six months may, on behalf of such Holder and all
     others similarly situated, petition any court of competent jurisdiction for
     the removal of the Trustee with respect to all Securities and the
     appointment of a successor Trustee or Trustees.

          (e)  If the Trustee resigns, is removed or becomes incapable of
     acting, or if a vacancy occurs in the office of Trustee for any cause with
     respect to the Securities of one or more series, the Company, by or
     pursuant to a Board Resolution, shall promptly appoint a successor Trustee
     or Trustees with respect to the Securities of such series (it being
     understood that any such successor Trustee may be appointed with respect to
     the Securities of one or more or all of such series and that at any time
     there shall be only one Trustee with respect to the Securities of any
     particular series). If, within one year after such resignation, removal or
     incapability, or the occurrence of such vacancy, a successor Trustee with
     respect to the Securities of any series is appointed by Act of the Holders
     of a majority in principal amount of the Outstanding Securities of such
     series delivered to the Company and the retiring Trustee, the successor
     Trustee so appointed shall, forthwith upon its acceptance of such
     appointment, become the successor Trustee with respect to the Securities of
     such series and to that extent supersede the successor Trustee appointed by
     the Company. If no successor Trustee with respect to the Securities of any
     series has been so appointed by the Company or the Holders of Securities
     and accepted appointment in the manner hereinafter provided, any Holder of
     a Security who has been a bona fide Holder of a Security of such series for
     at least six months may, on behalf of such Holder and all others similarly
     situated, petition any court of competent jurisdiction for the appointment
     of a successor Trustee with respect to Securities of such series.

          (f)  The Company shall give notice of each resignation and each
     removal of the Trustee with respect to the Securities of any series and
     each appointment of a successor Trustee with respect to the Securities of
     any series in the manner provided for notices to the Holders of Securities
     in Section 106. Each notice shall include the name of the successor Trustee
     with respect to the Securities of such series and the address of its
     Corporate Trust Office.

     SECTION 609. Acceptance of Appointment by Successor.
                  -------------------------------------- 

          (a)  In case of the appointment hereunder of a successor Trustee with
     respect to all Securities, every such successor Trustee shall execute,
     acknowledge and deliver to the Company and the retiring Trustee an
     instrument accepting such appointment, and,

                                       57
<PAGE>
 
     thereupon, the resignation or removal of the retiring Trustee shall become
     effective and such successor Trustee, without any further act, deed or
     conveyance, shall become vested with all the rights, powers, trusts and
     duties of the retiring Trustee; but, on request of the Company or the
     successor Trustee, such retiring Trustee shall, upon payment of its
     charges, execute and deliver an instrument transferring to such successor
     Trustee all the rights, powers and trusts of the retiring Trustee, and
     shall duly assign, transfer and deliver to such successor Trustee all
     property and money held by such retiring Trustee hereunder, subject
     nevertheless to its claim, if any, provided for in Section 606.

          (b)  In case of the appointment hereunder of a successor Trustee with
     respect to the Securities of one or more (but not all) series, the Company,
     the retiring Trustee and each successor Trustee with respect to the
     Securities of one or more series shall execute and deliver an indenture
     supplemental hereto, pursuant to Article Nine, wherein each successor
     Trustee shall accept such appointment and which (i) shall contain such
     provisions as are necessary or desirable to transfer and confirm to, and to
     vest in, each successor Trustee all the rights, powers, trusts and duties
     of the retiring Trustee with respect to the Securities of such series to
     which the appointment of such successor Trustee relates, (ii) if the
     retiring Trustee is not retiring with respect to all Securities, shall
     contain such provisions as are necessary or desirable to confirm that all
     the rights, powers, trusts and duties of the retiring Trustee with respect
     to the Securities of such series as to which the retiring Trustee is not
     retiring shall continue to be vested in the retiring Trustee and (iii)
     shall add to or change any of the provisions of this Indenture as are
     necessary to provide for or facilitate the administration of the trusts
     hereunder by more than one Trustee, it being understood that nothing herein
     or in such supplemental indenture shall constitute such Trustees co-
     trustees of the same trust and that each such Trustee shall be trustee of a
     trust or trusts hereunder separate and apart from any trust or trusts
     hereunder administered by any other such Trustee; and, upon the execution
     and delivery of such supplemental indenture, the resignation or removal of
     the retiring Trustee shall become effective to the extent provided therein
     and each such successor Trustee, without any further act, deed or
     conveyance, shall become vested with all the rights, powers, trusts and
     duties of the retiring Trustee with respect to the Securities of such
     series to which the appointment of such successor Trustee relates; but, on
     request of the Company or any successor Trustee, such retiring Trustee
     shall duly assign, transfer and deliver to such successor Trustee all
     property and money held by such retiring Trustee hereunder with respect to
     the Securities of such series to which the appointment of such successor
     Trustee relates.

          (c)  Upon request of any such successor Trustee, the Company shall
     execute any and all instruments for more fully and certainly vesting in and
     confirming to such successor Trustee all such rights, powers and trusts
     referred to in paragraph (a) or (b) of this Section, as the case may be.

                                       58
<PAGE>
 
          (d)  No successor Trustee shall accept its appointment unless at the
     time of such acceptance such successor Trustee shall be qualified and
     eligible under this Article.

     SECTION 610. Merger, Conversion, Consolidation or Succession to Business.
                  ------------------------------------------------------------ 
Any corporation into which the Trustee may be merged or converted or with which
it may be consolidated, or any corporation resulting from any merger, conversion
or consolidation to which the Trustee shall be a party, or any corporation
succeeding to all or substantially all of the corporate trust business of the
Trustee, shall be the successor of the Trustee hereunder, provided that such
                                                          --------          
corporation shall be otherwise qualified and eligible under this Article,
without the execution or filing of any paper or any further act on the part of
any of the parties hereto. In case any Securities or coupons have been
authenticated, but not delivered, by the Trustee then in office, any successor
by merger, conversion or consolidation to such authenticating Trustee may adopt
such authentication and deliver the Securities or coupons so authenticated with
the same effect as if such successor Trustee had itself authenticated such
Securities or coupons. In case any Securities or coupons have not been
authenticated by such predecessor Trustee, any such successor Trustee may
authenticate and deliver such Securities or coupons, in either its own name or
that of its predecessor Trustee, with the full force and effect which this
Indenture provides for the certificate of authentication of the Trustee.

     SECTION 611. Appointment of Authenticating Agent. At any time when any of
                  -----------------------------------                         
the Securities remain Outstanding, the Trustee may appoint an Authenticating
Agent or Agents with respect to one or more series of Securities which shall be
authorized to act on behalf of the Trustee to authenticate Securities of such
series issued upon exchange, registration of transfer or partial redemption or
repayment thereof, and Securities so authenticated shall be entitled to the
benefits of this Indenture and shall be valid and obligatory for all purposes as
if authenticated by the Trustee hereunder. Any such appointment shall be
evidenced by an instrument in writing signed by a Responsible Officer of the
Trustee, a copy of which instrument shall be promptly furnished to the Company.
Whenever reference is made in this Indenture to the authentication and delivery
of Securities by the Trustee or the Trustee's certificate of authentication,
such reference shall be deemed to include authentication and delivery on behalf
of the Trustee by an Authenticating Agent and a certificate of authentication
executed on behalf of the Trustee by an Authenticating Agent. Each
Authenticating Agent shall be acceptable to the Company and, except as may
otherwise be provided pursuant to Section 301, shall at all times be a bank or
trust company or corporation organized and doing business and in good standing
under the laws of the United States of America or of any State or the District
of Columbia, authorized under such laws to act as Authenticating Agent, having a
combined capital and surplus of not less than $50,000,000 and subject to
supervision or examination by Federal or State or District of Columbia
authorities. If such Authenticating Agent publishes reports of condition at
least annually, pursuant to law or the requirements of the aforesaid supervising
or examining authority, then for the purposes of this Section, the combined
capital and surplus of such Authenticating Agent shall be deemed to be its
combined capital and surplus as set forth in its

                                       59
<PAGE>
 
most recent report of condition so published. In case at any time an
Authenticating Agent ceases to be eligible in accordance with the provisions of
this Section, such Authenticating Agent shall resign immediately in the manner
and with the effect specified in this Section.

     Any corporation into which an Authenticating Agent may be merged or
converted or with which it may be consolidated, or any corporation resulting
from any merger, conversion or consolidation to which such Authenticating Agent
is a party, or any corporation succeeding to the corporate agency or corporate
trust business of an Authenticating Agent, shall continue to be an
Authenticating Agent, provided such corporation is otherwise eligible under this
Section, without the execution or filing of any paper or further act on the part
of the Trustee or the Authenticating Agent.

     An Authenticating Agent for any series of Securities may at any time resign
by giving written notice of resignation to the Trustee for such series and the
Company. The Trustee for any series of Securities may at any time terminate the
agency of an Authenticating Agent by giving written notice of termination to
such Authenticating Agent and the Company. Upon receiving such a notice of
resignation or upon such a termination, or in case at any time such
Authenticating Agent ceases to be eligible in accordance with the provisions of
this Section, the Trustee for such series may appoint a successor Authenticating
Agent which shall be acceptable to the Company and shall give notice of such
appointment to all Holders of Securities of or within the series with respect to
which such Authenticating Agent will serve in the manner set forth in Section
106. Any successor Authenticating Agent upon acceptance of its appointment
hereunder shall become vested with all the rights, powers and duties of its
predecessor hereunder, with like effect as if originally named as an
Authenticating Agent herein. No successor Authenticating Agent shall be
appointed unless eligible under the provisions of this Section.

     The Company agrees to pay to each Authenticating Agent from time to time
reasonable compensation including reimbursement of its reasonable expenses for
its services under this Section.

     If an appointment with respect to one or more series is made pursuant to
this Section, the Securities of such series may have endorsed thereon, in
addition to or in lieu of the Trustee's certificate of authentication, an
alternate certificate of authentication substantially in the following form:

                                       60
<PAGE>
 
          This is one of the Securities of the series designated therein
     referred to in the within-mentioned Indenture.

                              STATE STREET BANK AND TRUST
                                COMPANY,
                              as Trustee


                              By:__________________________________,
                              as Authenticating Agent


                              By:__________________________________
                                    Authorized Officer


                                 ARTICLE SEVEN
               HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY

     SECTION 701. Disclosure of Names and Addresses of Holders. Every Holder of
                  --------------------------------------------                 
Securities or coupons, by receiving and holding the same, agrees with the
Company and the Trustee that neither the Company nor the Trustee nor any
Authenticating Agent nor any Paying Agent nor any Security Registrar shall be
held accountable by reason of the disclosure of any information as to the names
and addresses of the Holders of Securities in accordance with Section 312 of the
Trust Indenture Act, regardless of the source from which such information was
derived, and that the Trustee shall not be held accountable by reason of mailing
any material pursuant to a request made under Section 312(b) of the Trust
Indenture Act.

     SECTION 702. Reports by Trustee. Within 60 days after February 1 of each
                  ------------------                                         
year commencing with the first February 1 after the first issuance of Securities
pursuant to this Indenture, the Trustee shall transmit by mail to all Holders of
Securities as provided in Section 313(c) of the Trust Indenture Act a brief
report dated as of such February 1 if required by Section 313(a) of the Trust
Indenture Act.

     SECTION 703. Company to Furnish Trustee Names and Addresses of Holders. The
                  ---------------------------------------------------------     
Company shall furnish or cause to be furnished to the Trustee:

          (a) semi-annually, not later than 15 days after the Regular Record
     Date for interest for each series of Securities, a list, in such form as
     the Trustee may reasonably require, of the names and addresses of the
     Holders of Registered Securities of such series as of such Regular Record
     Date, or if there is no Regular Record Date for interest for 

                                       61
<PAGE>
 
     such series of Securities, semi-annually, on such dates as are set forth in
     the Board Resolution or indenture supplemental hereto authorizing such
     series, and

          (b) at such other times as the Trustee may request in writing, within
     30 days after the receipt by the Company of any such request, a list of
     similar form and content as of a date not more than 15 days prior to the
     time such list is furnished;

provided, however, that, so long as the Trustee is the Security Registrar, no
- --------  -------                                                            
such list shall be required to be furnished.

                                 ARTICLE EIGHT
               CONSOLIDATION, MERGER, SALE, LEASE OR CONVEYANCE

     SECTION 801. Consolidations and Mergers of Company and Sales, Leases and
                  -----------------------------------------------------------
Conveyances.  The Company will not consolidate or merge with or into (whether or
- -----------                                                                     
not the Company is the surviving corporation), or sell, assign, transfer, lease,
convey or otherwise dispose of all or substantially all of its properties or
assets in one or more related transactions, to another Person unless (i) the
surviving Person or the Person formed by or surviving such consolidation or
merger (if other than the Company) or to which such sale, assignment, transfer,
lease, conveyance or other disposition shall have been made (the "Surviving
Entity") is a corporation organized or existing under the laws of the United
States, any state thereof or the District of Columbia; (ii) the Surviving Entity
assumes all the obligations, including the due and punctual payment of the
principal of (and premium or Make-Whole Amount, if any, on) and interest and
Additional Amounts, if any, on all Securities, according to their tenor, and the
due and punctual performance and observance of all covenants and conditions, of
the Company under the Securities and the Indenture pursuant to a supplemental
Indenture in form reasonably satisfactory to the Trustee; and (iii) immediately
before and after giving effect to such transaction and treating any indebtedness
which becomes an obligation of the Company as a result of such transaction as
having been incurred by the Company at the time of the transaction, no Event of
Default and no event which, after notice or the lapse of time or both, would
become an Event of Default shall have occurred and be continuing.

     SECTION 802. Rights and Duties of Successor Entity. In case of any such
                  -------------------------------------                     
consolidation, merger, sale, lease or conveyance and upon any such assumption by
the successor entity, such successor entity shall succeed to and be substituted
for the Company, with the same effect as if it had been named herein as the
party of the first part, and the predecessor entity, except in the event of a
lease, shall be relieved of any further obligation under this Indenture and the
Securities. Such successor entity thereupon may cause to be signed, and may
issue either in its own name or in the name of the Company, any or all of the
Securities issuable hereunder which theretofore have not been signed by the
Company and delivered to the Trustee; and, upon the order of such successor
entity, instead of the Company, and subject to all the terms, conditions 

                                       62
<PAGE>
 
and limitations in this Indenture prescribed, the Trustee shall authenticate and
shall deliver any Securities which previously have been signed and delivered by
the officers of the Company to the Trustee for authentication, and any
Securities which such successor entity thereafter shall cause to be signed and
delivered to the Trustee for that purpose. All the Securities so issued shall in
all respects have the same legal rank and benefit under this Indenture as the
Securities theretofore or thereafter issued in accordance with the terms of this
Indenture as though all of such Securities had been issued at the date of the
execution hereof.

     In case of any such consolidation, merger, sale, lease or conveyance, such
changes in phraseology and form (but not in substance) may be made in the
Securities thereafter to be issued as may be appropriate.

     SECTION 803. Company Certificate and Opinion of Counsel. Any consolidation,
                  ------------------------------------------                    
merger, sale, lease or conveyance permitted under Section 801 is also subject to
the condition that the Trustee receive a Company Certificate and an Opinion of
Counsel to the effect that any such consolidation, merger, sale, lease or
conveyance, and the assumption by any successor entity, complies with the
provisions of this Article and that all conditions precedent herein provided for
relating to such transaction have been complied with.

                                 ARTICLE NINE
                            SUPPLEMENTAL INDENTURES

     SECTION 901. Supplemental Indentures Without Consent of Holders. Without
                  --------------------------------------------------         
the consent of any Holders of Securities or coupons, the Company, when
authorized by or pursuant to a Board Resolution, and the Trustee, at any time
and from time to time, may enter into one or more indentures supplemental
hereto, in form satisfactory to the Trustee, for any of the following purposes:

          (1) to evidence the succession of another Person to the Company and
     the assumption by any such successor of the covenants of the Company
     contained herein and in the Securities; or

          (2) to add to the covenants of the Company for the benefit of the
     Holders of all or any series of Securities (and if such covenants are to be
     for the benefit of less than all series of Securities, stating that such
     covenants are expressly being included solely for the benefit of such
     series) or to surrender any right or power herein conferred on the Company;
     or

          (3) to add any additional Events of Default for the benefit of the
     Holders of all or any series of Securities (and if such Events of Default
     are to be for the benefit of less than all series of Securities, stating
     that such Events of Default are expressly being 

                                       63
<PAGE>
 
     included solely for the benefit of such series); provided, however, that,
                                                      --------  ------- 
     in respect of any such additional Events of Default, such supplemental
     indenture may provide for a particular period of grace after default (which
     period may be shorter or longer than that allowed in the case of other
     defaults) or may provide for an immediate enforcement upon such default or
     may limit the remedies available to the Trustee upon such default or may
     limit the right of the Holders of a majority in aggregate principal amount
     of such series of Securities to which such additional Events of Default
     apply to waive such default; or

          (4) to add to or change any of the provisions of this Indenture to
     provide that Bearer Securities may be registrable as to principal, to
     change or eliminate any restrictions on the payment of the principal of (or
     premium or Make-Whole Amount, if any, on) or interest or Additional
     Amounts, if any, on Bearer Securities, to permit Bearer Securities to be
     issued in exchange for Registered Securities, to permit Bearer Securities
     to be issued in exchange for Bearer Securities of other authorized
     denominations or to permit or facilitate the issuance of Securities in
     uncertificated form, provided that any such action shall not adversely
                          --------                                         
     affect the interests of the Holders of Securities of any series or any
     coupons appertaining thereto in any material respect; or

          (5) to change or eliminate any of the provisions of this Indenture,
                                                                             
     provided that any such change or elimination shall become effective only
     --------                                                                
     when there is no Security Outstanding of any series created prior to the
     execution of such supplemental indenture which is entitled to the benefit
     of such provision; or

          (6)  to secure the Securities; or

          (7) to establish the form or terms of Securities of any series and any
     coupons appertaining thereto as permitted by Sections 201 and 301,
     including the provisions and procedures, if applicable, for the conversion
     of such Securities into Common Shares or other securities of the Company;
     or

          (8) to evidence and provide for the acceptance of appointment
     hereunder by a successor Trustee with respect to the Securities of one or
     more series and to add to or change any of the provisions of this Indenture
     as are necessary to provide for or facilitate the administration of the
     trusts hereunder by more than one Trustee; or

          (9) to cure any ambiguity, to correct or supplement any provision
     hereof which may be defective or inconsistent with any other provision
     hereof, or to make any other provisions with respect to matters or
     questions arising under this Indenture which shall not be inconsistent with
     the provisions of this Indenture or to make any other changes, provided
                                                                    --------
     that, in each case, such provisions shall not adversely affect the

                                       64
<PAGE>
 
     interests of the Holders of Securities of any series or any coupons
     appertaining thereto in any material respect; or

          (10) to close this Indenture with respect to the authentication and
     delivery of additional series of Securities or to qualify, or maintain
     qualification of, this Indenture under the Trust Indenture Act; or

          (11) to supplement any of the provisions of this Indenture to such
     extent as are necessary to permit or facilitate the defeasance and
     discharge of any series of Securities pursuant to Sections 401, 1402 and
     1403; provided that, in each case, any such action shall not adversely
           --------                                                        
     affect the interests of the Holders of Securities of such series and any
     coupons appertaining thereto or any other series of Securities in any
     material respect.

     SECTION 902. Supplemental Indentures with Consent of Holders. With the
                  -----------------------------------------------          
consent of the Holders of not less than a majority in principal amount of all
Outstanding Securities affected by such supplemental indenture, by Act of such
Holders delivered to the Company and the Trustee, the Company (when authorized
by or pursuant to a Board Resolution) and the Trustee may enter into an
indenture or indentures supplemental hereto for the purpose of adding any
provisions to or changing in any manner or eliminating any of the provisions of
this Indenture or of modifying in any manner the rights of the Holders of
Securities and coupons under this Indenture; provided, however, that no such
                                             --------  -------              
supplemental indenture shall, without the consent of the Holder of each
Outstanding Security affected thereby:

          (1)  change the Stated Maturity of the principal of (or premium or
     Make-Whole Amount, if any, on) or any installment of principal of or
     interest on, any Security; or reduce the principal amount thereof or the
     rate or amount of interest thereon or any Additional Amounts payable in
     respect thereof, or any premium or Make-Whole Amount payable upon the
     redemption thereof, or change any obligation of the Company to pay
     Additional Amounts pursuant to Section 1010 (except as contemplated by
     clause (1) of Section 801 and permitted by clause (1) of Section 901), or
     reduce the amount of the principal of an Original Issue Discount Security
     or Make-Whole Amount, if any, which would be due and payable upon a
     declaration of acceleration of the Maturity thereof pursuant to Section 502
     or the amount thereof provable in bankruptcy pursuant to Section 504; or
     adversely affect any right of repayment at the option of the Holder of any
     Security, or change any Place of Payment where, or the currency or
     currencies, currency unit or units or composite currency or currencies in
     which, the principal of any Security or any premium or Make-Whole Amount or
     any Additional Amounts payable in respect thereof or the interest thereon
     is payable; or impair the right to institute suit for the enforcement of
     any such payment on or after the Stated Maturity thereof (or, in the case
     of redemption or repayment at the option of the Holder, on or after the
     Redemption Date or the Repayment Date, as the case may be); or

                                       65
<PAGE>
 
          (2)  reduce the percentage in principal amount of the Outstanding
     Securities of any series, the consent of the Holders of which is required
     for any such supplemental indenture, or the consent of the Holders of which
     is required for any waiver with respect to such series (or compliance with
     certain provisions of this Indenture or certain defaults hereunder and
     their consequences) provided for in this Indenture, or reduce the
     requirements of Section 1504 for quorum or voting; or

          (3)  modify any of the provisions of this Section, Section 513 or
     Section 1011, except to increase the required percentage to effect such
     action or to provide that certain other provisions of this Indenture cannot
     be modified or waived without the consent of the Holder of each Outstanding
     Security affected thereby.

     It shall not be necessary for any Act of Holders under this Section to
approve the particular form of any proposed supplemental indenture, but it shall
be sufficient if such Act approves the substance thereof.

     A supplemental indenture which changes or eliminates any covenant or other
provision of this Indenture which has expressly been included for the benefit of
one or more particular series of Securities, or which modifies the rights of the
Holders of Securities of such series with respect to such covenant or other
provision, shall be deemed not to affect the rights under this Indenture of the
Holders of Securities of any other series.

     SECTION 903. Execution of Supplemental Indentures. In executing, or
                  ------------------------------------                  
accepting the additional trusts created by, any supplemental indenture permitted
by this Article or the modification thereby of the trusts created by this
Indenture, the Trustee shall be entitled to receive, and shall be fully
protected in relying on, an Opinion of Counsel stating that the execution of
such supplemental indenture is authorized or permitted by this Indenture. The
Trustee may, but shall not be obligated to, enter into any such supplemental
indenture which affects the Trustee's own rights, duties or immunities under
this Indenture or otherwise.

     SECTION 904. Effect of Supplemental Indentures. Upon the execution of any
                  ---------------------------------                           
supplemental indenture under this Article, this Indenture shall be modified in
accordance therewith, and such supplemental indenture shall form a part of this
Indenture for all purposes; and every Holder of Securities theretofore or
thereafter authenticated and delivered hereunder and of any coupon appertaining
thereto shall be bound thereby.

     SECTION 905. Conformity with Trust Indenture Act. Every supplemental
                  -----------------------------------                    
indenture executed pursuant to this Article shall conform to the requirements of
the Trust Indenture Act as then in effect.

                                       66
<PAGE>
 
     SECTION 906. Reference in Securities to Supplemental Indentures. Securities
                  --------------------------------------------------            
of any series authenticated and delivered after the execution of any
supplemental indenture pursuant to this Article may, and shall, if required by
the Trustee, bear a notation in form approved by the Trustee as to any matter
provided for in such supplemental indenture. If the Company so determines, new
Securities of any series so modified as to conform, in the opinion of the
Trustee and the Company, to any such supplemental indenture may be prepared and
executed by the Company and authenticated and delivered by the Trustee in
exchange for Outstanding Securities of such series.

     SECTION 907. Notice of Supplemental Indentures. Promptly after the
                  ---------------------------------                    
execution by the Company and the Trustee of any supplemental indenture pursuant
to the provisions of Section 902, the Company shall give notice thereof to the
Holders of each Outstanding Security affected, in the manner provided for in
Section 106, setting forth in general terms the substance of such supplemental
indenture.

                                  ARTICLE TEN
                                   COVENANTS

     SECTION 1001. Payment of Principal, Premium or Make-Whole Amount, Interest
                   ------------------------------------------------------------
and Additional Amounts. The Company covenants and agrees for the benefit of the
- ----------------------                                                         
Holders of each series of Securities that it shall duly and punctually pay to
the Trustee prior to 12:00 noon on the applicable date of payment the principal
of (and premium or Make-Whole Amount, if any, on) and interest and Additional
Amounts, if any, on the Securities of such series in accordance with the terms
of such series of Securities, any coupons appertaining thereto and this
Indenture. Unless otherwise specified as contemplated by Section 301 with
respect to any series of Securities, any interest and Additional Amounts, if
any, on Bearer Securities on or before Maturity, other than Additional Amounts,
if any, payable as provided in Section 1010 in respect of principal of (or
premium or Make-Whole Amount, if any, on) such a Security, shall be payable only
upon presentation and surrender of the several coupons for such interest
installments as are evidenced thereby as they severally mature. Unless otherwise
specified with respect to Securities of any series pursuant to Section 301, at
the option of the Company, all payments of principal may be paid by check to the
registered Holder of the Registered Security or other person entitled thereto
against surrender of such Security.

     SECTION 1002. Maintenance of Office or Agency. If Securities of a series
                   -------------------------------                           
are issuable only as Registered Securities, the Company shall maintain in each
Place of Payment for any series of Securities an office or agency where
Securities of such series may be presented or surrendered for payment, where
Securities of such series may be surrendered for registration of transfer or
exchange and where notices and demands to or on the Company in respect of the
Securities of such series and this Indenture may be served. If Securities of a
series are issuable as Bearer Securities, the Company shall maintain: (i) in the
city of [BOSTON, MASSACHUSETTS], 

                                       67
<PAGE>
 
an office or agency where any Registered Securities of such series may be
presented or surrendered for payment, where any Registered Securities of such
series may be surrendered for exchange, where notices and demands to or on the
Company in respect of the Securities of such series and this Indenture may be
served and where Bearer Securities of such series and any coupons appertaining
thereto may be presented or surrendered for payment in the circumstances
described in the following paragraph (and not otherwise); (ii) subject to any
laws or regulations applicable thereto, in a Place of Payment for such series
which is located outside the United States, an office or agency where Securities
of such series and any coupons appertaining thereto may be presented and
surrendered for payment (including payment of any Additional Amounts payable on
Securities of such series pursuant to Section 1010); provided, however, that if
                                                     --------  -------    
the Luxembourg Stock Exchange, The International Stock Exchange or any other the
Securities of such series are listed on stock exchange located outside the
United States and such stock exchange so requires, the Company shall maintain a
Paying Agent for the Securities of such series in Luxembourg, London or any
other required city located outside the United States, as the case may be, so
long as the Securities of such series are listed on such exchange; and (iii)
subject to any laws or regulations applicable thereto, in a Place of Payment for
such series located outside the United States an office or agency where any
Securities of such series may be surrendered for registration of transfer, where
Securities of such series may be surrendered for exchange and where notices and
demands to or on the Company in respect of the Securities of such series and
this Indenture may be served. The Company shall give prompt written notice to
the Trustee of the location, and any change in the location, of each such office
or agency. If at any time the Company fails to maintain any such required office
or agency or fails to furnish the Trustee with the address thereof, such
presentations, surrenders, notices and demands may be made or served at the
Corporate Trust Office of the Trustee, except that Bearer Securities of such
series and the related coupons may be presented and surrendered for payment
(including payment of any Additional Amounts payable on Bearer Securities of
such series pursuant to Section 1010) at the offices specified in the Security,
in London, England, and the Company hereby appoints the same as its agent to
receive all such presentations, surrenders, notices and demands, and the Company
hereby appoints the Trustee as its agent to receive all such presentations,
surrenders, notices and demands.

     Unless otherwise specified with respect to any Securities pursuant to
Section 301, no payment of the principal of (or premium or Make-Whole Amount, if
any, on) or interest or Additional Amounts, if any, on Bearer Securities shall
be made at any office or agency of the Company in the United States or by check
mailed to any address in the United States or by transfer to an account
maintained with a bank located in the United States; provided, however, that, if
                                                     --------  -------
the Securities of a series are payable in Dollars, payment of the principal of
(and premium and Make-Whole Amount, if any, on) and interest and Additional
Amounts; if any, on any Bearer Security shall be made at the office of the
Company's Paying Agent in the city of Boston, Massachusetts if (but only if)
payment in Dollars of the full amount of such principal, premium, Make-Whole
Amount, interest or Additional Amounts, as the case may be, at all 

                                       68
<PAGE>
 
offices or agencies outside the United States maintained for the purpose by the
Company in accordance with this Indenture, is illegal or effectively precluded
by exchange controls or other similar restrictions.

     The Company may from time to time designate one or more other offices or
agencies where the Securities of one or more series and any coupons appertaining
thereto may be presented or surrendered for any or all of such purposes, and may
from time to time rescind such designations; provided, however, that no such
                                             --------  -------              
designation or rescission shall in any manner relieve the Company of its
obligation to maintain an office or agency in accordance with the requirements
set forth above for Securities of any series for such purposes. The Company
shall give prompt written notice to the Trustee of any such designation or
rescission and of any change in the location of any such other office or agency.
Unless otherwise specified with respect to any Securities pursuant to Section
301, the Company hereby designates as a Place of Payment for each series of
Securities the office or agency of the Company in the city of Boston,
Massachusetts, and initially appoints the Trustee at its Corporate Trust Office
as Paying Agent in such city and as its agent to receive all such presentations,
surrenders, notices and demands.

     Unless otherwise specified with respect to any Securities pursuant to
Section 301, if and so long as the Securities of any series (i) are denominated
in a Foreign Currency or (ii) may be payable in a Foreign Currency, or so long
as it is required under any other provision of the Indenture, then the Company
shall maintain with respect to each such series of Securities, or as so
required, at least one exchange rate agent.

     SECTION 1003. Money for Securities Payments to Be Held in Trust. If the
                   -------------------------------------------------        
Company at any time acts as its own Paying Agent with respect to any series of
any Securities and any coupons appertaining thereto, it shall, on or before each
due date of the principal of (and premium or Make-Whole Amount, if any, on) or
interest or Additional Amounts, if any, on any of the Securities of such series,
segregate and hold in trust for the benefit of the Persons entitled thereto a
sum 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)
sufficient to pay the principal (and premium or Make-Whole Amount, if any) or
interest or Additional Amounts, if any, so becoming due until such sums shall be
paid to such Persons or otherwise disposed of as herein provided, and shall
promptly notify the Trustee of its action or failure so to act.

     Whenever the Company has one or more Paying Agents for any series of
Securities and any coupons appertaining thereto, it shall, on or before each due
date of the principal of (and premium or Make-Whole Amount, if any, on) or
interest or Additional Amounts, if any, on any Securities of such series,
deposit with a Paying Agent a sum (in the currency or currencies, currency unit
or units or composite currency or currencies described in the preceding
paragraph) sufficient to pay the principal (and premium or Make-Whole Amount, if
any) or interest or 

                                       69
<PAGE>
 
Additional Amounts, if any, so becoming due, such sum to be held in trust for
the benefit of the Persons entitled to such principal, premium, Make-Whole
Amount, interest or Additional Amounts and (unless such Paying Agent is the
Trustee) the Company shall promptly notify the Trustee of its action or failure
so to act.

     The Company shall cause each Paying Agent other than the Trustee to execute
and deliver to the Trustee an instrument in which such Paying Agent shall agree
with the Trustee, subject to the provisions of this Section, that such Paying
Agent shall:

          (1) hold all sums held by it for the payment of principal of (and
     premium or Make-Whole Amount, if any, on) or interest or Additional
     Amounts, if any, on Securities in trust for the benefit of the Persons
     entitled thereto until such sums shall be paid to such Persons or otherwise
     disposed of as herein provided;

          (2) give the Trustee notice of any default by the Company (or any
     other obligor on the Securities) in the making of any such payment of
     principal (and premium or Make-Whole Amount, if any) or interest or
     Additional Amounts, if any; and

          (3) at any time during the continuance of any such default, on the
     written request of the Trustee, forthwith pay to the Trustee all sums so
     held in trust by such Paying Agent.

     The Company may at any time, for the purpose of obtaining the satisfaction
and discharge of this Indenture or for any other purpose, pay, or by Company
Order direct any Paying Agent to pay, to the Trustee all sums held in trust by
the Company or such Paying Agent, such sums to be held by the Trustee on the
same trusts as those on which such sums were held by the Company or such Paying
Agent; and, upon such payment by any Paying Agent to the Trustee, such Paying
Agent shall be released from all further liability with respect to such sums.

     Except as otherwise provided in the Securities of any series, any money
deposited with the Trustee or any Paying Agent, or then held by the Company, in
trust for the payment of the principal of (and premium or Make-Whole Amount, if
any, on) or interest or Additional Amounts, if any, on any Security of any
series and remaining unclaimed for two years after such principal (and premium
or Make-Whole Amount, if any) interest or Additional Amounts, if any, has become
due and payable shall be paid to the Company upon Company Request or (if then
held by the Company) shall be discharged from such trust; and the Holder of such
Security shall thereafter, as an unsecured general creditor, look only to the
Company for payment of the principal of (and premium or Make-Whole Amount, if
any, on) and interest and any Additional Amounts, if any, on any Security of
such series, without interest thereon, and all liability of the Trustee or such
Paying Agent with respect to such trust money, and all liability of the Company

                                       70
<PAGE>
 
as trustee thereof, shall thereupon cease; provided, however, that the Trustee
                                           --------  ------- 
or such Paying Agent, before being required to make any such repayment, may at
the expense of the Company cause to be published once, in an Authorized
Newspaper, notice that such money remains unclaimed and that, after a date
specified therein, which shall not be less than 30 days from the date of such
publication, any unclaimed balance of such money then remaining will be repaid
to the Company.

     SECTION 1004. Existence. Subject to Article Eight, the Company shall do or
                   ---------                                                   
cause to be done all things necessary to preserve and keep in full force and
effect the existence, rights (charter and statutory) and franchises of the
Company and its Subsidiaries; provided, however, that the Company shall not be
                              --------  -------                               
required to preserve any right or franchise if the Board of Directors determines
that the preservation thereof is no longer desirable in the conduct of the
business of the Company and its Subsidiaries as a whole and that the loss
thereof is not disadvantageous in any material respect to the Holders of
Securities of any series.

     SECTION 1005. Maintenance of Properties. The Company shall cause all of its
                   -------------------------                                    
properties used or useful in the conduct of its business or the business of any
Subsidiary to be maintained and kept in good condition, repair and working order
and supplied with all necessary equipment and shall cause to be made all
necessary repairs, renewals, replacements, betterments and improvements thereof,
all as in the judgment of the Company may be necessary so that the business
carried on in connection therewith may be properly and advantageously conducted
at all times; provided, however, that nothing in this Section shall prevent the
              --------  -------                                                
Company or any Subsidiary from selling or otherwise disposing for value its
properties in the ordinary course of its business.

     SECTION 1006. Insurance. The Company shall, and shall cause each of its
                   ---------                                                
Subsidiaries to, keep all of its insurable properties insured against loss or
damage at least equal to their then full insurable value with financially sound
and reputable insurance companies.

     SECTION 1007. Payment of Taxes and Other Claims. The Company shall pay or
                   ---------------------------------                          
discharge or cause to be paid or discharged, before the same become delinquent,
(i) all taxes, assessments and governmental charges levied or imposed on the
Company or any Subsidiary or on the income, profits or property of the Company
or any Subsidiary and (ii) all lawful claims for labor, materials and supplies
which, if unpaid, might by law become a lien on the property of the Company or
any Subsidiary; provided, however, that the Company shall not be required to pay
                --------  ------- 
or discharge or cause to be paid or discharged any such tax, assessment, charge
or claim whose amount, applicability or validity is being contested in good
faith by appropriate proceedings.

                                       71
<PAGE>
 
     SECTION 1008. Reports.
                   ------- 

          (1)  So long as any Securities of any series are outstanding, the
     Company will furnish to Holders of Securities of such series, within 45
     days of the filing thereof with the Commission copies of the annual reports
     on Form 10-K, within 20 days of the filing thereof with the Commission
     copies of the quarterly reports on Form 10-Q and within 15 days after the
     filing thereof with the Commission copies of the other information,
     documents and other reports (or copies of such portions of any of the
     foregoing as the Commission may by rules and regulations prescribe) that
     the Company is required to file with the Commission pursuant to Section 13
     or 15(d) of the Exchange Act provided that the Company's obligation to
     furnish such reports will be deemed satisfied to the extent the Company
     complies with Section 1008(2) and (4). All obligors on the Securities shall
     comply with the provisions of Section 314(a) of the Trust Indenture Act.
     Notwithstanding that the Company may not be subject to the reporting
     requirements of Section 13 or 15(d) of the Exchange Act or otherwise report
     on an annual and quarterly basis on forms provided for such annual and
     quarterly reporting pursuant to rules and regulations promulgated by the
     Commission, the Company shall file with the Commission and provide to the
     Trustee (i)  within 135 days after the end of each fiscal year, annual
     reports on Form 10-K (or any successor or comparable form) containing the
     information required to be contained therein (or required in such successor
     or comparable form), including a "Management's Discussion and Analysis of
     Financial Condition and Results of Operations" and a report thereon by the
     Company's certified public accountants; (ii) within 65 days after the end
     of each of the first three fiscal quarters of each fiscal year, reports on
     Form 10-Q (or any successor or comparable form) containing the information
     required to be contained therein (or required in any successor or
     comparable form), including a "Management's Discussion and Analysis of
     Financial Condition and Results of Operations"; and (iii) promptly from
     time to time after the occurrence of an event required to be therein
     reported, such other reports on Form 8-K (or any successor or comparable
     form) containing the information required to be contained therein (or
     required in any successor or comparable form); provided, however, that the
     Company shall not be in default of the provisions of this Section 1008(1)
     for any failure to file reports with the Commission solely by the refusal
     of the Commission to accept the same for filing. Each of the financial
     statements contained in such reports shall be prepared in accordance with
     GAAP.

          (2)  The Company's obligations under this Section 1008 will be deemed
     satisfied to the extent the Company provides the Trustee with a sufficient
     number of annual reports, information, documents and reports for the
     Trustee to provide or make available such annual reports, information,
     documents and reports to the Holders.  The Trustee, at the Company's
     expense and written direction, shall promptly mail copies of all such
     annual reports, information, documents and other reports provided to the
     Trustee 

                                       72
<PAGE>
 
     Pursuant to Section 1008(1) hereof to the Holders at their addresses
     appearing in the Security Register.

          (3) Whether or not required by the rules and regulations of the
     Commission, the Company shall file a copy of all such information and
     reports with the Commission for public availability and make such
     information available to securities analysts and prospective investors upon
     request.

          (4) The Company shall provide the Trustee with a sufficient number of
     copies of all reports and other documents and information which the Trustee
     may be required to deliver to the Holders under this Section 1008.

          (5) Delivery of such reports, information and documents to the Trustee
     is for informational purposes only and the Trustee's receipt of such shall
     not constitute constructive notice of any information contained therein or
     determinable from information contained therein, including the Company's
     compliance with any of its covenants hereunder (as to which the Trustee is
     entitled to rely exclusively on Officers' Certificates).

     SECTION 1009. Statement as to Compliance. The Company shall deliver to the
                   --------------------------                                  
Trustee, within 135 days after the end of each fiscal year, a brief certificate
from the principal executive officer, principal financial officer or principal
accounting officer as to his or her knowledge of the Company's compliance with
all conditions and covenants under this Indenture verified in the case of
conditions precedent compliance with which is subject to verification by
accountants by the certificate or opinion of an accountant and, in the event of
any noncompliance, specifying such noncompliance and the nature and status
thereof. For purposes of this Section 1009, such compliance shall be determined
without regard to any period of grace or requirement of notice provided under
this Indenture.

     SECTION 1010. Additional Amounts. If any Securities of a series provide for
                   ------------------                                           
the payment of Additional Amounts, the Company covenants and agrees for the
benefit of the Holders of Securities of such series that it shall pay to the
Holder of any Security of such series or any coupon appertaining thereto
Additional Amounts as may be specified as contemplated by Section 301. Whenever
in this Indenture there is mentioned, in any context except in the case of
clause (1) of Section 502, the payment of the principal of or of any premium,
Make-Whole Amount or interest on, or in respect of, any Security of any series
or payment of any coupon or the net proceeds received on the sale or exchange of
any Security of any series, such mention shall be deemed to include mention of
the payment of Additional Amounts provided by the terms of such series
established pursuant to Section 301 to the extent that, in such context,
Additional Amounts are, were or would be payable in respect thereof pursuant to
such terms and express mention of the payment of Additional Amounts (if
applicable) in any provisions hereof shall not 

                                       73
<PAGE>
 
be construed as excluding Additional Amounts in those provisions hereof in which
such express mention is not made.

     Except as otherwise specified as contemplated by Section 301, if the
Securities of a series provide for the payment of Additional Amounts, at least
10 days prior to the first Interest Payment Date with respect to Securities of
such series (or if the Securities of such series will not bear interest prior to
Maturity, the first day on which a payment of principal and any premium is
made), and at least 10 days prior to each date of payment of principal and any
premium or Make-Whole Amount or interest, if there has been any change with
respect to the matters set forth in the below-mentioned Company Certificate, the
Company shall furnish the Trustee and the principal Paying Agent or Paying
Agents, if other than the Trustee, with a Company Certificate instructing the
Trustee and such Paying Agent or Paying Agents whether such payment of principal
of and any premium or Make-Whole Amount or interest on the Securities of such
series shall be made to Holders of Securities of such series or any coupons
appertaining thereto who are not United States persons without withholding for
or on account of any tax, assessment or other governmental charge described in
the Securities of or within the series. If any such withholding is required,
then such Company Certificate shall specify by country the amount, if any,
required to be withheld on such payments to such Holders of Securities of such
series or any coupons appertaining thereto and the Company shall pay to the
Trustee or such Paying Agent the Additional Amounts required by the terms of
such Securities. In the event that the Trustee or any Paying Agent, as the case
may be, shall not so receive the above-mentioned certificate, then the Trustee
or such Paying Agent shall be entitled (i) to assume that no such withholding or
deduction is required with respect to any payment of principal or interest with
respect to any Securities of such series or any coupons appertaining thereto
until it has received a certificate advising otherwise and (ii) to make all
payments of principal and interest with respect to the Securities of such series
or any coupons appertaining thereto without withholding or deductions until
otherwise advised. The Company covenants to indemnify the Trustee and any Paying
Agent for, and to hold them harmless against, any loss, liability or expense
reasonably incurred without negligence or bad faith on their part arising out of
or in connection with actions taken or omitted by any of them or in reliance on
any Company Certificate furnished pursuant to this Section or in reliance on the
Company's not furnishing such a Company Certificate.

     SECTION 1011. Waiver of Certain Covenants. The Company may omit in any
                   ---------------------------                             
particular instance to comply with any term, provision or condition set forth in
Sections 1004 to 1008, inclusive, and with any other term, provision or
condition with respect to the Securities of any series specified in accordance
with Section 301 (except any such term, provision or condition which could not
be amended without the consent of all Holders of Securities of such series
pursuant to Section 902), if before or after the time for such compliance the
Holders of at least a majority in principal amount of all outstanding Securities
of such series, by Act of such Holders, either waive such compliance in such
instance or generally waive compliance with such 

                                       74
<PAGE>
 
covenant or condition, but no such waiver shall extend to or affect such
covenant or condition except to the extent so expressly waived, and, until such
waiver shall become effective, the obligations of the Company and the duties of
the Trustee in respect of any such term, provision or condition shall remain in
full force and effect.

     SECTION 1012.  Seniority of Securities.  The Company covenants and agrees
                    -----------------------                                   
that the indebtedness represented by the Securities is hereby expressly made
senior to any indebtedness represented by any securities now outstanding or ever
issued or to be issued pursuant to the Indenture dated ___________, 1998 between
the Company and State Street Bank and Trust Company, as trustee, in respect of
subordinated debt securities or any amendments or supplements thereto.

                                ARTICLE ELEVEN
                           REDEMPTION OF SECURITIES

     SECTION 1101. Applicability of Article. Securities of any series which are
                   ------------------------                                    
redeemable before their Stated Maturity shall be redeemable in accordance with
their terms and (except as otherwise specified as contemplated by Section 301
for Securities of any series) in accordance with this Article.

     SECTION 1102. Election to Redeem; Notice to Trustee. The election of the
                   -------------------------------------                     
Company to redeem any Securities shall be evidenced by or pursuant to a Board
Resolution. In case of any redemption at the election of the Company of less
than all of the Securities of any series, the Company shall, at least 30 days
prior to the giving of the notice of redemption in Section 1104 (unless a
shorter notice shall be satisfactory to the Trustee), notify the Trustee of such
Redemption Date and of the principal amount of Securities of such series to be
redeemed. In the case of any redemption of Securities prior to the expiration of
any restriction on such redemption provided in the terms of such Securities or
elsewhere in this Indenture, the Company shall furnish the Trustee with a
Company Certificate evidencing compliance with such restriction.

     SECTION 1103. Selection by Trustee of Securities to Be Redeemed. If less
                   -------------------------------------------------         
than all the Securities of any series issued on the same day with the same terms
are to be redeemed, the particular Securities to be redeemed shall be selected
not more than 60 days prior to the Redemption Date by the Trustee, from the
Outstanding Securities of such series issued on such date with the same terms
not previously called for redemption, by such method as the Trustee deems fair
and appropriate and which may provide for the selection for redemption of
portions (equal to the minimum authorized denomination for Securities of such
series or any integral multiple thereof) of the principal amount of Securities
of such series of a denomination larger than the minimum authorized denomination
for Securities of such series.

                                       75
<PAGE>
 
     The Trustee shall promptly notify the Company and the Security Registrar
(if other than itself) in writing of the Securities selected for redemption and,
in the case of any Securities selected for partial redemption, the principal
amount thereof to be redeemed.

     For all purposes of this Indenture, unless the context otherwise requires,
all provisions relating to the redemption of Securities shall relate, in the
case of any Security redeemed or to be redeemed only in part, to the portion of
the principal amount of such Security which has been or is to be redeemed.

     SECTION 1104.  Notice of Redemption. Notice of redemption shall be given in
                    --------------------                                        
the manner provided in Section 106, not less than 30 days nor more than 60 days
prior to the Redemption Date, unless a shorter period is specified by the terms
of such series established pursuant to Section 301, to each Holder of Securities
to be redeemed, but failure to give such notice in the manner herein provided to
the Holder of any Security designated for redemption as a whole or in part, or
any defect in the notice to any such Holder, shall not affect the validity of
the proceedings for the redemption of any other such Security or portion
thereof.

     Any notice which is mailed to the Holders of Registered Securities in the
manner herein provided shall be conclusively presumed to have been duly given,
whether or not the Holder receives the notice.

     All notices of redemption shall state:

          (1)  the Redemption Date;

          (2)  the Redemption Price, accrued interest to the Redemption Date
     payable as provided in Section 1106, if any, and Additional Amounts, if
     any;

          (3)  if less than all Outstanding Securities of any series are to be
     redeemed, the identification (and, in the case of partial redemption, the
     principal amount) of the particular Security or Securities to be redeemed;

          (4)  in case any Security is to be redeemed in part only, the notice
     which relates to such Security shall state that on and after the Redemption
     Date, on surrender of such Security, the holder will receive, without a
     charge, a new Security or Securities of authorized denominations for the
     principal amount thereof remaining unredeemed;

          (5)  that on the Redemption Date, the Redemption Price and accrued
     interest to the Redemption Date payable as provided in Section 1106, if
     any, will become due and payable on each such Security, or the portion
     thereof, to be redeemed and, if applicable, that interest thereon shall
     cease to accrue on and after such date;

                                      76
<PAGE>
 
          (6)  the Place or Places of Payment where such Securities, together in
     the case of Bearer Securities with all coupons appertaining thereto, if
     any, maturing after the Redemption Date, are to be surrendered for payment
     of the Redemption Price and accrued interest, if any;

          (7)  that the redemption is for a sinking fund, if such is the case;

          (8)  that, unless otherwise specified in such notice, Bearer
     Securities of any series, if any, surrendered for redemption must be
     accompanied by all coupons appertaining thereto maturing subsequent to the
     date fixed for redemption or the amount of any such missing coupon or
     coupons will be deducted from the Redemption Price, unless security or
     indemnity satisfactory to the Company, the Trustee for such series and any
     Paying Agent is furnished;

          (9)  if Bearer Securities of any series are to be redeemed and any
     Registered Securities of such series are not to be redeemed, and if such
     Bearer Securities may be exchanged for Registered Securities not subject to
     the redemption on this Redemption Date pursuant to Section 305 or
     otherwise, the last date, as determined by the Company, on which such
     exchanges may be made; and

          (10) the CUSIP number of such Security, if any, provided that neither
                                                          --------             
     the Company nor the Trustee shall have any responsibility for any such
     CUSIP number.

     Notice of redemption of Securities to be redeemed shall be given by the
Company or, at the Company's request, by the Trustee in the name and at the
expense of the Company.

     SECTION 1105.  Deposit of Redemption Price. At least one Business Day prior
                    ---------------------------                                 
to any Redemption Date, the Company shall deposit with the Trustee or with a
Paying Agent (or, if the Company is acting as its own Paying Agent, which it may
not do in the case of a sinking fund payment under Article Twelve, segregate and
hold in trust as provided in Section 1003) 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) sufficient to pay on
the Redemption Date the Redemption Price of, and (except if the Redemption Date
is an Interest Payment Date) accrued interest on, all the Securities or portions
thereof which are to be redeemed on such date.

     SECTION 1106.  Securities Payable on Redemption Date. Notice of redemption
                    -------------------------------------                      
having been given as provided above, the Securities so to be redeemed shall, on
the Redemption Date, become due and payable at the Redemption Price therein
specified 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

                                      77
<PAGE>
 
series) (together with accrued interest, if any, to the Redemption Date), and
from and after such date (unless the Company defaults in the payment of the
Redemption Price and accrued interest) such Securities shall, if the same were
interest-bearing, cease to bear interest and the coupons for such interest
appertaining to any Bearer Securities so to be redeemed, except to the extent
provided below, shall be void. Upon surrender of any such Security for
redemption in accordance with such notice, together with any coupons
appertaining thereto maturing after the Redemption Date, such Security shall be
paid by the Company at the Redemption Price, together with accrued interest, if
any, to the Redemption Date; provided, however, that installments of interest on
                             --------  -------                                  
Bearer Securities whose Stated Maturity is on or prior to the Redemption Date
shall be payable only at an office or agency located outside the United States
(except as otherwise provided in Section 1002) and, unless otherwise specified
as contemplated by Section 301, only upon presentation and surrender of coupons
for such interest; and provided, further, that, installments of interest on
                       --------  -------                                   
Registered Securities whose Stated Maturity is on or prior to the Redemption
Date shall be payable to the Holders of such Securities, or one or more
Predecessor Securities, registered as such at the close of business on the
relevant Record Dates according to their terms and the provisions of Section
307.

     If any Bearer Security surrendered for redemption is not accompanied by all
coupons appertaining thereto maturing after the Redemption Date, such Security
may be paid after deducting from the Redemption Price an amount equal to the
face amount of all such missing 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 surrenders to
the Trustee or any Paying Agent any such missing coupon in respect of which a
deduction has been made from the Redemption Price, such Holder shall be entitled
to receive the amount so deducted; provided, however, that interest represented
                                   --------  -------               
by a coupon shall be payable only at an office or agency located outside the
United States (except as otherwise provided in Section 1002) and, unless
otherwise specified as contemplated by Section 301, only upon presentation and
surrender of such coupon.

     If any Security called for redemption is not so paid upon surrender thereof
for redemption, the principal (and premium or Make-Whole Amount, if any) shall,
until paid, bear interest from the Redemption Date at the rate borne by the
Security.

     SECTION 1107.  Securities Redeemed in Part. Any Security which is to be
                    ---------------------------                             
redeemed only in part (pursuant to the provisions of this Article or of Article
Twelve) shall be surrendered at a Place of Payment therefor (with, if the
Company or the Trustee so requires, due endorsement by, or a written instrument
of transfer in form satisfactory to the Company and the Trustee duly executed
by, the Holder thereof or his attorney duly authorized in writing and
accompanied by appropriate evidence of genuineness and authority) and the
Company shall execute and the Trustee shall authenticate and deliver to the
Holder of such Security without

                                      78
<PAGE>
 
service charge a new Security or Securities of the same series, of any
authorized denomination as requested by such Holder in aggregate principal
amount equal to and in exchange for the unredeemed portion of the principal of
the Security so surrendered.

                                ARTICLE TWELVE
                                 SINKING FUNDS

     SECTION 1201.  Applicability of Article. The provisions of this Article
                    ------------------------                                
shall be applicable to any sinking fund for the retirement of Securities of a
series except as otherwise specified as contemplated by Section 301 for
Securities of such series.

     The minimum amount of any sinking fund payment provided for by the terms of
Securities of any series is herein referred to as a "mandatory sinking fund
                                                     ----------------------
payment," and any payment in excess of such minimum amount provided for by the
- -------                                                                       
terms of such Securities of any series is herein referred to as an "optional
                                                                    --------
sinking fund payment." If provided for by the terms of any Securities of any
- --------------------                                                        
series, the cash amount of any mandatory sinking fund payment may be subject to
reduction as provided in Section 1202. Each sinking fund payment shall be
applied to the redemption of Securities of any series as provided for by the
terms of Securities of such series.

     SECTION 1202.  Satisfaction of Sinking Fund Payments with Securities. The
                    -----------------------------------------------------     
Company may, in satisfaction of all or any part of any mandatory sinking fund
with respect to the Securities of a series, (i) deliver Outstanding Securities
of such series (other than any previously called for redemption), together in
the case of any Bearer Securities of such series with all unmatured coupons
appertaining thereto, and (ii) apply as a credit Securities of such series which
have been redeemed either at the election of the Company pursuant to the terms
of such Securities or through the application of permitted optional sinking fund
payments pursuant to the terms of such Securities, as provided for by the terms
of such Securities, or which have otherwise been acquired by the Company,
provided that such Securities so delivered or applied as a credit have not been
- --------                                                                       
previously so credited. Such Securities shall be received and credited for such
purpose by the Trustee at the applicable Redemption Price specified in such
Securities for redemption through operation of the sinking fund and the amount
of such mandatory sinking fund payment shall be reduced accordingly.

     SECTION 1203.  Redemption of Securities for Sinking Fund. Not less than 60
                    -----------------------------------------                  
days prior to each sinking fund payment date for Securities of any series, the
Company shall deliver to the Trustee a Company Certificate specifying the amount
of the next ensuing mandatory sinking fund payment for such series pursuant to
the terms of such series, the portion thereof, if any, which is to be satisfied
by payment of cash 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) and the portion

                                      79
<PAGE>
 
thereof, if any, which is to be satisfied by delivering and crediting Securities
of such series pursuant to Section 1202, and the optional amount, if any, to be
added in cash to the next ensuing mandatory sinking fund payment, and shall also
deliver to the Trustee any Securities to be so delivered and credited. If such
Company Certificate specifies an optional amount to be added in cash to the next
ensuing mandatory sinking fund payment, the Company shall thereupon be obligated
to pay the amount therein specified. Not less than 30 days before each such
sinking fund payment date the Trustee shall select the Securities to be redeemed
on such sinking fund payment date in the manner specified in Section 1103 and
cause notice of the redemption thereof to be given in the name of and at the
expense of the Company in the manner provided in Section 1104. Such notice
having been duly given, the redemption of such Securities shall be made upon the
terms and in the manner stated in Sections 1106 and 1107.

                               ARTICLE THIRTEEN
                      REPAYMENT AT THE OPTION OF HOLDERS

     SECTION 1301.  Applicability of Article. Repayment of Securities of any
                    ------------------------                                
series before their Stated Maturity at the option of Holders thereof shall be
made in accordance with the terms of such Securities, if any, and (except as
otherwise specified by the terms of such series established pursuant to Section
301) in accordance with this Article.

     SECTION 1302.  Repayment of Securities. Securities of any series subject to
                    -----------------------                                     
repayment in whole or in part at the option of the Holders thereof will, unless
otherwise provided in the terms of such Securities, be repaid at a price equal
to the principal amount thereof, together with interest, if any, thereon accrued
to the Repayment Date specified in or pursuant to the terms of such Securities.
The Company covenants that at least one Business Day prior to the Repayment Date
it shall deposit with the Trustee or with a Paying Agent (or, if the Company is
acting as it own Paying Agent, segregate and hold in trust as provided in
Section 1003) 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) sufficient to pay the principal (or, if so provided
by the terms of the Securities of any series, a percentage of the principal) of,
and (except if the Repayment Date is an Interest Payment Date) accrued interest
on, all the Securities or portions thereof, as the case may be, to be repaid on
such date.

     SECTION 1303.  Exercise of Option. Securities of any series subject to
                    ------------------                                     
repayment at the option of the Holders thereof will contain an "Option to Elect
Repayment" form on the reverse of such Securities. In order for any Security to
be repaid at the option of the Holder, the Trustee must receive at the Place of
Payment therefor specified in the terms of such Security (or at such other place
or places of which the Company shall from time to time notify the Holders of
such Securities), not earlier than 60 days nor later than 30 days prior to the
Repayment Date, (i) the Security so providing for such repayment together with
the "Option to Elect Repayment" form

                                      80
<PAGE>
 
on the reverse thereof duly completed by the Holder (or by the Holder's attorney
duly authorized in writing) or (ii) a telegram, telex, facsimile transmission or
a letter from a member of a national securities exchange, or the National
Association of Securities Dealers, Inc., or a commercial bank or trust company
in the United States setting forth the name of the Holder of the Security, the
principal amount of the Security, the principal amount of the Security to be
repaid, the CUSIP number, if any, or a description of the tenor and terms of the
Security, a statement that the option to elect repayment is being exercised
thereby and a guarantee that the Security to be repaid, together with the duly
completed form entitled "Option to Elect Repayment" on the reverse of the
Security, will be received by the Trustee not later than the fifth Business Day
after the date of such telegram, telex, facsimile transmission or letter;
provided, however, that such telegram, telex, facsimile transmission or letter
- --------  -------                     
shall only be effective if such Security and form duly completed are received by
the Trustee by such fifth Business Day. If less than the entire principal amount
of such Security is to be repaid in accordance with the terms of such Security,
the principal amount of such Security to be repaid, in increments of the minimum
denomination for Securities of such series, and the denomination or
denominations of the Security or Securities to be issued to the Holder for the
portion of the principal amount of such Security surrendered which is not to be
repaid, must be specified. The principal amount of any Security providing for
prepayment at the option of the Holder thereof may not be repaid in part if,
following such repayment, the unpaid principal amount of such Security would be
less than the minimum authorized denomination of Securities of or within the
series of which such Security to be repaid is a part. Except as otherwise may be
provided by the terms of any Security providing for repayment at the option of
the Holder thereof, exercise of the repayment option by the Holder shall be
irrevocable unless waived by the Company.

     SECTION 1304.  When Securities Presented for Repayment Become Due and
                    ------------------------------------------------------
Payable. If Securities of any series providing for repayment at the option of
- -------                                                                      
the Holders thereof have been surrendered as provided in this Article and as
provided by or pursuant to the terms of such Securities, such Securities or the
portions thereof, as the case may be, to be repaid shall become due and payable
and shall be paid by the Company on the Repayment Date therein specified, and on
and after such Repayment Date (unless the Company defaults in the payment of
such Securities on such Repayment Date) such Securities shall, if the same were
interest-bearing, cease to bear interest and the coupons for such interest
appertaining to any Bearer Securities so to be repaid, except to the extent
provided below, shall be void. Upon surrender of any such Security for repayment
in accordance with such provisions, together with any coupons appertaining
thereto maturing after the Repayment Date, the principal amount of such security
so to be repaid shall be paid by the Company, together with accrued interest, if
any, to the Repayment Date; provided, however, that coupons whose Stated 
                            --------  -------                           
Maturity is on or prior to the Repayment Date shall be payable only at an office
or agency located outside the United States (except as otherwise provided in
Section 1002) and, unless otherwise specified pursuant to Section 301, only upon
presentation and surrender of such coupons; and provided, further, that, in the
                                                --------  -------              
case of Registered Securities, installments of interest, if any, whose Stated
Maturity is on 

                                      81
<PAGE>
 
or prior to the Repayment Date shall be payable (but without interest thereon,
unless the Company defaults in the payment thereof) to the Holders of such
Securities, or one or more Predecessor Securities, registered as such at the
close of business on the relevant Record Dates according to their terms and the
provisions of Section 307.

     If any Bearer Security surrendered for repayment is not accompanied by all
coupons appertaining thereto maturing after the Repayment Date, such Security
may be paid after deducting from the amount payable therefor as provided in
Section 1302 an amount equal to the face amount of all such missing 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 surrenders to the Trustee or any Paying Agent any such
missing coupon in respect of which a deduction has been made as provided in the
preceding sentence, such Holder shall be entitled to receive the amount so
deducted; provided, however, that interest represented by a coupon shall be 
          --------  ------- 
payable only at an office or agency located outside the United States (except as
otherwise provided in Section 1002) and, unless otherwise specified as
contemplated by Section 301, only upon presentation and surrender of such
coupon.

     If the principal amount of any Security surrendered for repayment shall not
be so repaid upon surrender thereof, such principal amount (together with
interest, if any, thereon accrued to such Repayment Date) shall, until paid,
bear interest from the Repayment Date at the rate of interest or Yield to
Maturity (in the case of Original Issue Discount Securities) set forth in such
Security.

     SECTION 1305.  Securities Repaid in Part. Upon surrender of any Registered
                    -------------------------                                  
Security which is to be repaid in part only, the Company shall execute and the
Trustee shall authenticate and deliver to the Holder of such Security, without
service charge and at the expense of the Company, a new Registered Security or
Securities of the same series, of any authorized denomination specified by the
Holder, in an aggregate principal amount equal to and in exchange for the
portion of the principal of such Security so surrendered which is not to be
repaid.

                               ARTICLE FOURTEEN
                      DEFEASANCE AND COVENANT DEFEASANCE

     SECTION 1401.  Applicability of Article; Company's Option to Effect
                    ----------------------------------------------------
Defeasance or Covenant Defeasance. If, pursuant to Section 301, provision is 
- ---------------------------------                                           
made for either or both of (i) defeasance of the Securities of or within a
series under Section 1402 or (ii) covenant defeasance of the Securities of or
within a series under Section 1403 to be applicable to the Securities of any
series, then the provisions of such Section or Sections, as the case may be,
together with the other provisions of this Article (with such modifications
thereto as may be specified pursuant to Section 301 with respect to any
Securities), shall be applicable to such Securities and any

                                      82
<PAGE>
 
coupons appertaining thereto, and the Company may at its option by Board
Resolution, at any time, with respect to such Securities and any coupons
appertaining thereto, elect to defease such Outstanding Securities and any
coupons appertaining thereto pursuant to Section 1402 (if applicable) or Section
1403 (if applicable) upon compliance with the conditions set forth below in this
Article.

     SECTION 1402.  Defeasance and Discharge. Upon the Company's exercise of the
                    ------------------------                                    
above option applicable to this Section with respect to any Securities of or
within a series, the Company shall be deemed to have been discharged from its
obligations with respect to such Outstanding Securities and any coupons
appertaining thereto on the date the conditions set forth in Section 1404 are
satisfied (hereinafter, "defeasance"). For this purpose, such defeasance means
                         ----------                                           
that the Company shall be deemed to have paid and discharged the entire
indebtedness represented by such Outstanding Securities and any coupons
appertaining thereto, which shall thereafter be deemed "Outstanding" only for
the purposes of Section 1405 and the other Sections of this Indenture referred
to in clauses (i) and (ii) below, and to have satisfied all of its other
obligations under such Securities and any coupons appertaining thereto and this
Indenture insofar as such Securities and any coupons appertaining thereto are
concerned (and the Trustee, at the expense of the Company, shall execute proper
instruments acknowledging the same), except for the following which shall
survive until otherwise terminated or discharged hereunder: (i) the rights of
Holders of such Outstanding Securities and any coupons appertaining thereto to
receive, solely from the trust fund described in Section 1404 and as more fully
set forth in such Section, payments in respect of the principal of (and premium
or Make-Whole Amount, if any, on) and interest and Additional Amounts, if any,
on such Securities and any coupons appertaining thereto when such payments are
due; (ii) the Company's obligations with respect to such Securities under
Sections 305, 306, 1002 and 1003 and with respect to the payment of Additional
Amounts, if any, on such Securities as contemplated by Section 1010; (iii) the
rights, powers, trusts, duties and immunities of the Trustee hereunder; and (iv)
this Article. Subject to compliance with this Article Fourteen, the Company may
exercise its option under this Section notwithstanding the prior exercise of its
option under Section 1403 with respect to such Securities and any coupons
appertaining thereto.

     SECTION 1403.  Covenant Defeasance. Upon the Company's exercise of the 
                    -------------------                                  
above option applicable to this Section with respect to any Securities of or
within a series, the Company shall be released from its obligations under
Sections 1004 to 1008, inclusive, and, if specified pursuant to Section 301, its
obligations under any other covenant, with respect to such Outstanding
Securities and any coupons appertaining thereto on and after the date the
conditions set forth in Section 1404 are satisfied (hereinafter, "covenant
                                                                  --------
defeasance"), and such Securities and any coupons appertaining thereto shall
- ----------
thereafter be deemed not "Outstanding" for the purposes of any direction,
waiver, consent or declaration or Act of Holders (and the consequences of any
thereof) in connection with Sections 1004 to 1008, inclusive, or such other
covenant, but shall continue to be deemed "Outstanding" for all other purposes
hereunder. For

                                      83
<PAGE>
 
this purpose, such covenant defeasance means that, with respect to such
Outstanding Securities and any coupons appertaining thereto, the Company may
omit to comply with and shall have no liability in respect of any term,
condition or limitation set forth in any such Section or such other covenant,
whether directly or indirectly, by reason of any reference elsewhere herein to
any such Section or such other covenant or by reason of reference in any such
Section or such other covenant to any other provision herein or in any other
document and such omission to comply shall not constitute a default or an Event
of Default under clause (4) or (9) of Section 501 or otherwise, as the case may
be, but, except as specified above, the remainder of this Indenture and such
Securities and any coupons appertaining thereto shall be unaffected thereby.

     SECTION 1404.  Conditions to Defeasance or Covenant Defeasance. The
                    -----------------------------------------------     
following shall be the conditions to application of Section 1402 or Section 1403
to any Outstanding Securities of or within a series and any coupons appertaining
thereto:

          (a)  The Company has irrevocably deposited or caused to be deposited
     with the Trustee (or another trustee satisfying the requirements of Section
     607 who shall agree to comply with the provisions of this Article Fourteen
     applicable to it) funds in trust for the purpose of making the following
     payments, specifically pledged as security for, and dedicated solely to,
     the benefit of the Holders of such Securities and any coupons appertaining
     thereto: (i) an amount in such currency or currencies, currency unit or
     units or composite currency or currencies in which such Securities and any
     coupons appertaining thereto are then specified as payable at Stated
     Maturity, or (ii) Government Obligations applicable to such Securities and
     any coupons appertaining thereto (determined on the basis of the currency
     or currencies, currency unit or units or composite currency or currencies
     in which such Securities and any coupons appertaining thereto are then
     specified as payable at Stated Maturity) which through the scheduled
     payment of principal and interest in respect thereof in accordance with
     their terms will provide, not later than one day before the due date of any
     payment of principal of (and premium or Make-Whole Amount, if any, on) and
     interest and Additional Amounts, if any, on such Securities and any coupons
     appertaining thereto, money in an amount, or (iii) a combination thereof in
     an amount, sufficient, without consideration of any reinvestment of such
     principal and interest, in the opinion of a nationally recognized firm of
     independent public accountants expressed in a written certification thereof
     delivered to the Trustee, to pay and discharge, and which shall be applied
     by the Trustee (or other qualifying trustee) to pay and discharge, (A) the
     principal of (and premium or Make-Whole Amount, if any, on) and interest
     and Additional Amounts, if any, on such Outstanding Securities and any
     coupons appertaining thereto on the Stated Maturity of such principal or
     installment of principal or interest and (B) any mandatory sinking fund
     payments or analogous payments applicable to such Outstanding Securities
     and any coupons appertaining thereto on the day on which such payments are
     due and payable in accordance with the terms of this Indenture and of such
     Securities and any coupons

                                      84
<PAGE>
 
     appertaining thereto, provided that the Trustee has been irrevocably
                           --------                                      
     instructed to apply such money or the proceeds of such Government
     Obligations to such payments with respect to such Securities. Before such a
     deposit, the Company may give to the Trustee, in accordance with Section
     1102, a notice of its election to redeem all or any portion of such
     Outstanding Securities at a future date in accordance with the terms of the
     Securities of such series and Article Eleven, which notice shall be
     irrevocable. Such irrevocable redemption notice, if given, shall be given
     effect in applying the foregoing.

          (b)  Such defeasance or covenant defeasance shall not result in a
     breach or violation of, or constitute a default under, this Indenture or
     any other material agreement or instrument to which the Company is a party
     or by which it is bound (and shall not cause the Trustee to have a
     conflicting interest pursuant to Section 310(b) of the Trust Indenture Act
     with respect to any Security of the Company).

          (c)  No Event of Default or event which with notice or lapse of time
     or both would become an Event of Default with respect to such Securities
     and any coupons appertaining thereto has occurred and is continuing on the
     date of such deposit or, insofar as clauses (7) and (8) of Section 501 are
     concerned, at any time during the period ending on the 91st day after the
     date of such deposit (it being understood that this condition shall not be
     deemed satisfied until the expiration of such period).

          (d)  In the case of an election under Section 1402, the Company has
     delivered to the Trustee an Opinion of Counsel stating that (i) the Company
     has received from, or there has been published by, the Internal Revenue
     Service a ruling, or (ii) since the date of execution of this Indenture,
     there has been a change in the applicable Federal income tax law, in either
     case to the effect that, and based thereon such opinion shall confirm that,
     the Holders of such Outstanding Securities and any coupons appertaining
     thereto will not recognize income, gain or loss for Federal income tax
     purposes as a result of such defeasance and will be subject to Federal
     income tax on the same amounts, in the same manner and at the same times as
     would have been the case if such defeasance had not occurred.

          (e)  In the case of an election under Section 1403, the Company has
     delivered to the Trustee an Opinion of Counsel to the effect that the
     Holders of such Outstanding Securities and any coupons appertaining thereto
     will not recognize income, gain or loss for Federal income tax purposes as
     a result of such covenant defeasance and will be subject to Federal income
     tax on the same amounts, in the same manner and at the same times as would
     have been the case if such covenant defeasance had not occurred.

          (f)  The Company has delivered to the Trustee a Company Certificate
     and an Opinion of Counsel, each stating that all conditions precedent to
     the defeasance under

                                      85
<PAGE>
 
     Section 1402 or the covenant defeasance under Section 1403 (as the case may
     be) have been complied with and an Opinion of Counsel to the effect that
     either (i) as a result of a deposit pursuant to paragraph (a) above and the
     related exercise of the Company's option under Section 1402 or Section 1403
     (as the case may be), registration is not required under the Investment
     Company Act of 1940, as amended, by the Company with respect to the trust
     funds representing such deposit or by the Trustee for such trust funds or
     (ii) all necessary registrations under such Act have been effected.

          (g)  After the 91st day following the deposit, the trust funds will
     not be subject to the effect of any applicable bankruptcy, insolvency,
     reorganization or similar laws affecting creditors' rights generally.

          (h)  Notwithstanding any other provisions of this Section, such
     defeasance or covenant defeasance shall be effected in compliance with any
     additional or substitute terms, conditions or limitations which may be
     imposed on the Company in connection therewith pursuant to Section 301.

     SECTION 1405.  Deposited Money and Government Obligations to Be Held in
                    --------------------------------------------------------
Trust; Other Miscellaneous Provisions. Subject to the provisions of the last
- -------------------------------------                                       
paragraph of Section 1003, all money and Government Obligations (or other
property as may be provided pursuant to Section 301) (including the proceeds
thereof) deposited with the Trustee (or other qualifying trustee) pursuant to
Section 1404 in respect of any Outstanding Securities of any series and any
coupons appertaining thereto shall be held in trust and applied by the Trustee
or such other qualifying trustee, in accordance with the provisions of such
Securities and any coupons appertaining thereto and this Indenture, to the
payment, either directly or through any Paying Agent (including the Company
acting as its own Paying Agent) as the Trustee or such other qualifying trustee
may determine, to the Holders of such Securities and any coupons appertaining
thereto of all sums due and to become due thereon in respect of principal (and
premium or Make-Whole Amount, if any) and interest and Additional Amounts, if
any, but such money need not be segregated from other funds except to the extent
required by law.

     Unless otherwise specified with respect to any Security pursuant to Section
301, if, after a deposit referred to in Section 1404(a) has been made, (i) the
Holder of a Security in respect of which such deposit was made is entitled to,
and does, elect pursuant to Section 301 or the terms of such Security to receive
payment in a currency, currency unit or composite currency other than that in
which the deposit pursuant to Section 1404(a) has been made in respect of such
Security or (ii) a Conversion Event occurs in respect of the currency, currency
unit or composite currency in which the deposit pursuant to Section 1404(a) has
been made, the indebtedness represented by such Security and any coupons
appertaining thereto shall be deemed to have been, and will be, fully discharged
and satisfied through the payment of the principal of (and premium or Make-Whole
Amount, if any, on), and interest and Additional Amounts, if any, on such

                                      86
<PAGE>
 
Security as the same become due out of the proceeds yielded by converting (from
time to time as specified below in the case of any such election) the amount or
other property deposited in respect of such Security into the currency, currency
unit or composite currency in which such Security becomes payable as a result of
such election or Conversion Event based on the applicable market exchange rate
for such currency, currency unit or composite currency in effect on the second
Business Day prior to each payment date, except, with respect to a Conversion
Event, for such currency, currency unit or composite currency in effect (as
nearly as feasible) at the time of the Conversion Event.

     The Company shall pay and indemnify the Trustee against any tax, fee or
other charge imposed on or assessed against the Government Obligations deposited
pursuant to Section 1404 or the principal and interest received in respect
thereof other than any such tax, fee or other charge which by law is for the
account of the Holders of such Outstanding Securities and any coupons
appertaining thereto.

     Anything in this Article to the contrary notwithstanding, the Trustee or
such other qualifying trustee shall deliver or pay to the Company, from time to
time upon Company Request, any money or Government Obligations (or other
property and any proceeds therefrom) held by it as provided in Section 1404
which, in the opinion of a nationally recognized firm of independent public
accountants expressed in a written certification thereof delivered to the
Trustee or such other qualifying trustee, are in excess of the amount thereof
which would then be required to be deposited to effect a defeasance or covenant
defeasance, as applicable, in accordance with this Article.

                                ARTICLE FIFTEEN
                       MEETINGS OF HOLDERS OF SECURITIES

     SECTION 1501.  Purposes for Which Meetings May Be Called. A meeting of
                    -----------------------------------------              
Holders of Securities of any series may be called at any time and from time to
time pursuant to this Article to make, give or take any request, demand,
authorization, direction, notice, consent, waiver or other action provided by
this Indenture to be made, given or taken by Holders of Securities of such
series.

     SECTION 1502.  Call, Notice and Place of Meetings.
                    ---------------------------------- 

          (a)  The Trustee may at any time call a meeting of Holders of
     Securities of any series for any purpose specified in Section 1501, to be
     held at such time and at such place in the city of Boston, Massachusetts,
     as the Trustee determines. Notice of every meeting of Holders of Securities
     of any series, setting forth the time and the place of such meeting and in
     general terms the action proposed to be taken at such meeting, shall

                                      87
<PAGE>
 
     be given, in the manner provided in Section 106, not less than 21 nor more
     than 180 days prior to the date fixed for the meeting.

          (b)  In case at any time the Company, pursuant to a Board Resolution,
     or the Holders of at least 10% in principal amount of the Outstanding
     Securities of any series have requested the Trustee to call a meeting of
     the Holders of Securities of such series for any purpose specified in
     Section 1501, by written request setting forth in reasonable detail the
     action proposed to be taken at the meeting, and the Trustee has not made
     the first publication of the notice of such meeting within 21 days after
     receipt of such request or does not thereafter proceed to cause the meeting
     to be held as provided herein, then the Company or the Holders of
     Securities of such series in the amount above specified, as the case may
     be, may determine the time and the place in the city of Boston,
     Massachusetts, for such meeting and may call such meeting for such purposes
     by giving notice thereof as provided in paragraph (a) above.

     SECTION 1503.  Persons Entitled to Vote at Meetings. To be entitled to vote
                    ------------------------------------                        
at any meeting of Holders of Securities of any series, a Person shall be (i) a
Holder of one or more Outstanding Securities of such series or (ii) a Person
appointed by an instrument in writing as proxy for a Holder or Holders of one or
more Outstanding Securities of such series by such Holder or Holders. The only
Persons who shall be entitled to be present or to speak at any meeting of
Holders of Securities of any series are the Persons entitled to vote at such
meeting and their counsel, any representatives of the Trustee and its counsel,
and any representatives of the Company and its counsel.

     SECTION 1504.  Quorum; Action. The Persons entitled to vote a majority in
                    --------------                                            
principal amount of the Outstanding Securities of a series shall constitute a
quorum for a meeting of Holders of Securities of such series; provided, however,
                                                              --------  ------- 
that if any action is to be taken at such meeting with respect to a consent or
waiver which this Indenture expressly provides may be given by the Holders of
not less than a specified percentage in principal amount of the Outstanding
Securities of a series, the Persons entitled to vote such specified percentage
in principal amount of the Outstanding Securities of such series shall
constitute a quorum. In the absence of a quorum within 30 minutes after the time
appointed for any such meeting, the meeting shall, if convened at the request of
Holders of Securities of such series, be dissolved. In any other case the
meeting may be adjourned for a period of not less than 10 days as determined by
the chairman of the meeting prior to the adjournment of such meeting. In the
absence of a quorum at any such adjourned meeting, such adjourned meeting may be
further adjourned for a period of not less than 10 days as determined by the
chairman of the meeting prior to the adjournment of such adjourned meeting.
Notice of the reconvening of any adjourned meeting shall be given as provided in
Section 1502(a), except that such notice need be given only once not less than
five days prior to the date on which the meeting is scheduled to be reconvened.
Notice of the reconvening of any adjourned meeting shall state expressly the

                                      88
<PAGE>
 
percentage, as provided above, of the principal amount of the Outstanding
Securities of such series which shall constitute a quorum.

     Except as limited by the proviso to Section 902, any resolution presented
to a meeting or adjourned meeting duly reconvened at which a quorum is present
as aforesaid may be adopted by the affirmative vote of the Holders of a majority
in principal amount of the Outstanding Securities of such series; provided,
                                                                  -------- 
however, that, except as limited by the proviso to Section 902, any resolution
- -------                                                                       
with respect to any request, demand, authorization, direction, notice, consent,
waiver or other action which this Indenture expressly provides may be made,
given or taken by the Holders of a specified percentage, which is less than a
majority, in principal amount of the Outstanding Securities of a series may be
adopted at a meeting or an adjourned meeting duly reconvened and at which a
quorum is present as aforesaid by the affirmative vote of the Holders of such
specified percentage in principal amount of the Outstanding Securities of such
series.

     Any resolution passed or decision taken at any meeting of Holders of
Securities of any series duly held in accordance with this Section shall be
binding on all the Holders of Securities of such series and any coupons
appertaining thereto, whether or not present or represented at the meeting.

     Notwithstanding the foregoing provisions of this Section 1504, if any
action is to be taken at a meeting of Holders of Securities of any series with
respect to any request, demand, authorization, direction, notice, consent,
waiver or other action which this Indenture expressly provides may be made,
given or taken by the Holders of a specified percentage in principal amount of
all Outstanding Securities affected thereby, or of the Holders of such series
and one or more additional series;

          (1)  there shall be no minimum quorum requirement for such meeting;
     and

          (2)  the principal amount of the Outstanding Securities of such series
     which vote in favor of such request, demand, authorization, direction,
     notice, consent, waiver or other action shall be taken into account in
     determining whether such request, demand, authorization, direction, notice,
     consent, waiver or other action has been made, given or taken under this
     Indenture.

     SECTION 1505.  Determination of Voting Rights; Conduct and Adjournment of
                    ----------------------------------------------------------
Meetings.
- -------- 

          (a)  Notwithstanding any provisions of this Indenture, the Trustee may
     make such reasonable regulations as it may deem advisable for any meeting
     of Holders of Securities of a series in regard to proof of the holding of
     Securities of such series and of the appointment of proxies and in regard
     to the appointment and duties of inspectors

                                      89
<PAGE>
 
     of votes, the submission and examination of proxies, certificates and other
     evidence of the right to vote, and such other matters concerning the
     conduct of the meeting as it deems appropriate. Except as otherwise
     permitted or required by any such regulations, the holding of Securities
     shall be proved in the manner specified in Section 104 and the appointment
     of any proxy shall be proved in the manner specified in Section 104 or by
     having the signature of the Person executing the proxy witnessed or
     guaranteed by any trust company, bank or banker authorized by Section 104
     to certify to the holding of Bearer Securities. Such regulations may
     provide that written instruments appointing proxies, regular on their face,
     may be presumed valid and genuine without the proof specified in Section
     104 or other proof.

          (b)  The Trustee shall, by an instrument in writing appoint a
     temporary chairman of the meeting, unless the meeting has been called by
     the Company or by Holders of Securities as provided in Section 1502(b), in
     which case the Company or the Holders of Securities of or within the series
     calling the meeting, as the case may be, shall in like manner appoint a
     temporary chairman. A permanent chairman and a permanent secretary of the
     meeting shall be elected by vote of the Persons entitled to vote a majority
     in principal amount of the Outstanding Securities of such series
     represented at the meeting.

          (c)  At any meeting each Holder of a Security of such series or proxy
     shall be entitled to one vote for each $1,000 principal amount of the
     Outstanding Securities of such series held or represented by such Holder;
     provided, however, that no vote shall be cast or counted at any meeting in
     --------  -------                                                         
     respect of any Security challenged as not Outstanding and ruled by the
     chairman of the meeting to be not Outstanding. The chairman of the meeting
     shall have no right to vote, except as a Holder of a Security of such
     series or proxy.

          (d)  Any meeting of Holders of Securities of any series duly called
     pursuant to Section 1502 at which a quorum is present may be adjourned from
     time to time by Persons entitled to vote a majority in principal amount of
     the Outstanding Securities of such series represented at the meeting, and
     the meeting may be held as so adjourned without further notice.

     SECTION 1506.  Counting Votes and Recording Action of Meetings. The vote on
                    -----------------------------------------------             
any resolution submitted to any meeting of Holders of Securities of any series
shall be by written ballots on which shall be subscribed the signatures of the
Holders of Securities of such series or of their representatives by proxy and
the principal amounts and series numbers of the Outstanding Securities of such
series held or represented by them. The permanent chairman of the meeting shall
appoint two inspectors of votes who shall count all votes cast at the meeting
for or against any resolution and who shall make and file with the secretary of
the meeting their

                                      90
<PAGE>
 
verified written reports in duplicate of all votes cast at the meeting. A
record, at least in duplicate, of the proceedings of each meeting of Holders of
Securities of any series shall be prepared by the secretary of the meeting and
there shall be attached to such record the original reports of the inspectors of
votes on any vote by ballot taken thereat and affidavits by one or more persons
having knowledge of the fact, setting forth a copy of the notice of the meeting
and showing that such notice was given as provided in Section 1502 and, if
applicable, Section 1504. Each copy shall be signed and verified by the
affidavits of the permanent chairman and secretary of the meeting and one such
copy shall be delivered to the Company and another to the Trustee to be
preserved by the Trustee, the latter to have attached thereto the ballots voted
at the meeting. Any record so signed and verified shall be conclusive evidence
of the matters therein stated.

     SECTION 1507.  Evidence of Action Taken by Holders. Any request, demand,
                    -----------------------------------                      
authorization, direction, notice, consent, waiver or other action provided by
this Indenture to be given or taken by a specified percentage in principal
amount of the Holders of any or all series may be embodied in and evidenced by
one or more instruments of substantially similar tenor signed by such specified
percentage of Holders in person or by agent duly appointed in writing; and,
except as otherwise expressly provided herein, such action shall become
effective when such instrument or instruments are delivered to the Trustee.
Proof of execution of any instrument or of a writing appointing any such agent
shall be sufficient for any purpose of this Indenture and (subject to Article
Six) conclusive in favor of the Trustee and the Company, if made in the manner
provided in this Article.

     SECTION 1508.  Proof of Execution of Instruments. Subject to Article Six,
                    ---------------------------------                         
the execution of any instrument by a Holder or his agent or proxy may be proved
in accordance with such reasonable rules and regulations as may be prescribed by
the Trustee or in such manner as shall be satisfactory to the Trustee.

                                ARTICLE SIXTEEN
                          SUBORDINATION OF SECURITIES
 
     SECTION 1601   Securities Subordinated to Senior Indebtedness.  The Company
                    ----------------------------------------------              
covenants and agrees, and each Holder of Securities, by his acceptance thereof,
likewise covenants and agrees, that the indebtedness represented by the
Securities and the payment of any and all amounts payable in respect of each and
all of the Securities is hereby expressly subordinated, to the extent and in the
manner hereinafter set forth, in right of payment to the prior payment in full
of Senior Indebtedness, whether outstanding on the date of this Indenture or
thereafter incurred, assumed or guaranteed.

     In the event (a) of any distribution of assets of the Company upon any
dissolution, winding up, liquidation or reorganization of the Company whether in
a bankruptcy, insolvency, 

                                      91
<PAGE>
 
reorganization or receivership proceeding or upon an assignment for the benefit
of creditors or any other marshalling of the assets and liabilities of the
Company or otherwise, except a distribution in connection with a merger or
consolidation or a conveyance or transfer of all or substantially all of the
properties of the Company which complies with the requirements of Article Eight,
                                                                  -------------
or (b) that a default shall have occurred and be continuing with respect to the
payment of any amount payable in respect of any Senior Indebtedness, or (c) that
the principal of the Securities of any Series shall have been declared due and
payable pursuant to Section 502 and such declaration shall not have been 
                    -----------         
rescinded and annulled as provided in Section 502, then:
                                      -----------

     (1)  in a circumstance described in the foregoing clause (a) or (b) the
Holders of all Senior Indebtedness, and in the circumstance described in the
foregoing clause (c) the Holders of all Senior Indebtedness outstanding at the
time the principal of such Securities (or in the case of Original Issue Discount
Securities, such portion of the principal amount) shall have been so declared
due and payable, shall first be entitled to receive payment of the full amount
due thereon, or provision shall be made for such payment in money or money's
worth, before the Holders of any of the Securities are entitled to receive any
payment in respect of the indebtedness evidenced by the Securities;

     (2)  any payment by, or distribution of assets of, the Company of any kind
or character, whether in cash, property or securities (other than securities of
the Company as reorganized or readjusted or securities of the Company or any
other corporation provided for by a plan of reorganization or readjustment the
payment of which is subordinate, at least to the extent provided in this Article
with respect to the Securities, to the payment of all Senior Indebtedness,
provided that the rights of the holders of the Senior Indebtedness are not
altered by such reorganization or readjustment), to which the Holders of any of
the Securities would be entitled except for the provisions of this Article shall
be paid or delivered by the person making such payment or distribution, whether
a trustee in bankruptcy, a receiver or liquidating trustee or otherwise,
directly to the holders of such Senior Indebtedness or their representative or
representatives or to the trustee or trustees under any indenture under which
any instrument evidencing any of such Senior Indebtedness may have been issued,
ratably according to the aggregate amounts remaining unpaid on account of such
Senior Indebtedness held or represented by each, to the extent necessary to make
payment in full of all Senior Indebtedness remaining unpaid after giving effect
to any concurrent payment or distribution (or provision therefor) to the holders
of such Senior Indebtedness, before any payment or distribution is made to the
Holders of the indebtedness evidenced by the Securities under this Indenture;
and

     (3)  in the event that, notwithstanding the foregoing, any payment by, or
distribution of assets of, the Company or any kind of character, whether in
cash, property or securities (other than securities of the Company as
reorganized or readjusted or securities of the Company or any other corporation
provided for by a plan of reorganization or readjustment the payment

                                      92
<PAGE>
 
of which is subordinate, at least to the extent provided in this Article with
respect to the Securities, to the payment of all Senior Indebtedness, provided
that the rights of the holders of Senior Indebtedness are not altered by such
reorganization or readjustment), shall be received by the Holders of any of the
Securities before all Senior Indebtedness is paid in full, such payment or
distribution shall be paid over to the holders of such Senior Indebtedness or
their representative or representatives or to the trustee or trustees under any
indenture under which any instruments evidencing any of such Senior Indebtedness
may have been issued, ratably as aforesaid, for application to the payment of
all Senior Indebtedness remaining unpaid until all such Senior Indebtedness
shall have been paid in full, after giving effect to any concurrent payment or
distribution (or provision therefor) to the holders of such Senior Indebtedness.

     SECTION 1602   Subrogation.  Subject to the payment in full of all Senior
                    -----------                                               
Indebtedness to which the indebtedness evidenced by the Securities is in the
circumstances subordinated as provided in Section 1601, the Holders of the
                                          ------------                
Securities shall be subrogated to the rights of the holders of such Senior
Indebtedness to receive payments or distributions of cash, property or
securities of the Company applicable to such Senior Indebtedness until all
amounts owing on the Securities shall be paid in full, and, as between the
Company, its creditors other than holders of such Senior Indebtedness, and the
Holders of the Securities, no such payment or distribution made to the holders
of such Senior Indebtedness by virtue of this Article which otherwise would have
been made to the Holders of the Securities shall be deemed to be a payment by
the Company on account of such Senior Indebtedness, it being understood that the
provisions of this Article are and are intended solely for the purpose of
defining the relative rights of the Holders of the Securities, on the one hand,
and the holders of Senior Indebtedness.

     SECTION 1603   Obligation of the Company Unconditional.  Nothing contained
                    ---------------------------------------                    
in this Article or elsewhere in this Indenture or in the Securities is intended
to or shall impair, as between the Company, its creditors other than the holders
of Senior Indebtedness, and the Holders of the Securities, the obligation of the
Company, which is absolute and unconditional, to pay to the Holders of the
Securities the principal of and interest on and any additional amounts owing in
respect of the Securities as and when the same shall become due and payable in
accordance with their terms, or is intended to or shall affect the relative
rights of the Holders of the Securities and creditors of the Company other than
the holders of Senior Indebtedness nor shall anything herein or therein prevent
the Trustee or the Holder of any Security from exercising all remedies otherwise
permitted by applicable law upon default under this Indenture, subject to the
rights, if any, under this Article of the holders of Senior Indebtedness in
respect of cash, property or securities of the Company received upon the
exercise of any such remedy.

     Upon any payment or distribution of assets of the Company referred to in
this Article, the Trustee and the Holders of the Securities shall be entitled to
rely upon any order or decree made by any court of competent jurisdiction in
which any such dissolution, winding up, liquidation or reorganization proceeding
affecting the affairs of the Company is pending or upon

                                      93
<PAGE>
 
a certificate of the trustee in bankruptcy, receiver, assignee for the benefit
of creditors, liquidating trustee or agent or other person making any payment or
distribution, delivered to the Trustee or to the Holders of the Securities, for
the purpose of ascertaining the persons entitled to participate in such payment
or distribution, the holders of the Senior Indebtedness and other indebtedness
of the Company, the amount thereof or payable thereon, the amount paid or
distributed thereon and all other facts pertinent thereto or to this Article.

     SECTION 1604   Payments on Securities Permitted.  Nothing contained in this
                    --------------------------------                            
Article or elsewhere in this Indenture, or in any of the Securities, shall
affect the obligation of the Company to make, or prevent the Company from
making, payment of the principal of or interest on or any additional amounts
owing in respect of the Securities in accordance with the provisions hereof and
thereof, except as otherwise provided in this Article.

     SECTION 1605   Effectuation of Subordination by Trustee.  Each Holder of
                    ----------------------------------------                 
Securities, by his acceptance thereof, authorizes and directs the Trustee in his
behalf to take such action as may be necessary or appropriate to effectuate the
subordination provided in this Article and appoints the Trustee his attorney-in-
fact for any and all such purposes.

     SECTION 1606   Knowledge of Trustee.  Notwithstanding the provisions of 
                    --------------------                                  
this Article or any other provisions of this Indenture, the Trustee shall not be
deemed to owe any fiduciary duty to the holders of Senior Indebtedness and shall
not be charged with knowledge of the existence of any facts which would prohibit
the making of any payment of moneys to or by the Trustee, or the taking of any
other action by the Trustee, unless and until the Trustee shall have received
written notice thereof from the Company, any Holder of Securities, any paying or
conversion agent of the Company or the holder or representative of any class of
Senior Indebtedness; provided, however, that if the Trustee shall not have
received the notice provided for in this Section at least three Business Days
prior to the date upon which, by the terms hereof, any money may become payable
for any purpose (including, without limitation, the payment of the principal of
or interest on, or additional amounts owing in respect of, any Security) then,
anything herein contained to the contrary notwithstanding, the Trustee shall
have all power and authority to receive such money and to apply the same to the
purpose for which such money was received and shall not be affected by any
notice to the contrary which may be received by it during or after such three
Business Day period.

     SECTION 1607   Trustee May Hold Senior Indebtedness.  The Trustee in its
                    ------------------------------------                     
individual capacity shall be entitled to all the rights set forth in this
Article with respect to any Senior Indebtedness at the time held by it, to the
same extent as any other holder of Senior Indebtedness, and nothing in Section
313 of the TIA or elsewhere in this Indenture shall deprive the Trustee of any
of its rights as such holder.

                                      94
<PAGE>
 
     Nothing in this Article shall subordinate any claims of, or payments to,
the Trustee (under or pursuant to Section 606) to Senior Indebtedness.
                                  -----------                         

     SECTION 1608   Rights of Holders of Senior Indebtedness Not Impaired.  No
                    -----------------------------------------------------     
right of any present or future holder of any Senior Indebtedness to enforce the
subordination herein shall at any time or in any way be prejudiced or impaired
by any act or failure to act on the part of the Company or by any non-compliance
by the Company with the terms, provisions and covenants of this Indenture,
regardless of any knowledge thereof any such holder may have or be otherwise
charged with.

                                      95
<PAGE>
 
     IN WITNESS WHEREOF, the parties hereto have caused this Indenture to be
duly executed, and their respective corporate seals to be hereunto affixed and
attested, all as of the day and year first above written.

                                   SECURITY CAPITAL GROUP INCORPORATED



                                   By:___________________________________
                                   Name:_________________________________
                                   Title:________________________________

[SEAL]

Attest:

________________________________

Secretary


                                   STATE STREET BANK AND TRUST COMPANY,
                                   As Trustee



                                   By:___________________________________
                                   Name:_________________________________
                                   Title:________________________________

[SEAL]

Attest:

________________________________

Secretary

                                      96
<PAGE>
 
STATE OF NEW MEXICO      )
                         ) ss:
COUNTY OF____________    )

     On the _____ day of ________________, 1998, before me personally came
______________________, to me known, who, being by me duly sworn, did depose and
say that he resides at ____________________________________________, that he is
a ____________________ of Security Capital Group Incorporated, one of the
entities described in and which executed the foregoing instrument; that he knows
the seal of such entity; that the seal affixed to such instrument is such seal;
that it was so affixed by authority of the Board of Directors of such entity,
and that he signed his name thereto by like authority.

[Notarial Seal]

                              ___________________________________
                              Notary Public
                              Commission Expires


STATE OF MASSACHUSETTS   )
                         ) ss:
COUNTY OF SUFFOLK        )

     On the _____ day of _______________, 1998, before me personally came
____________________, to me known, who, being by me duly sworn, did depose and
say that _____ resides at ________________________________________, that _____
is a ____________________ of State Street Bank and Trust Company, one of the
entities described in and which executed the foregoing instrument; that _____
knows the seal of such entity; that the seal affixed to such instrument is such
seal; that it was so affixed by authority of the Board of Directors of such
entity, and that _____ signed _____ name thereto by like authority.

[Notarial Seal]

                              ___________________________________
                              Notary Public
                              Commission Expires

                                      97
<PAGE>
 
                                   EXHIBIT A

                            FORMS OF CERTIFICATION


                                  EXHIBIT A-1

              FORM OF CERTIFICATE TO BE GIVEN BY PERSON ENTITLED
               TO RECEIVE BEARER SECURITY OR TO OBTAIN INTEREST
                      PAYABLE PRIOR TO THE EXCHANGE DATE

                                  CERTIFICATE

[INSERT TITLE OR SUFFICIENT DESCRIPTION OF SECURITIES TO BE DELIVERED]

     This is to certify that, as of the date hereof, and except as set forth
below, the above-captioned Securities held by you for our account (i) are owned
by person(s) which are not citizens or residents of the United States, domestic
partnerships, domestic corporations or any estate or trust the income of which
is subject to United States federal income taxation regardless of its source
("United States person(s)"), (ii) are owned by United States person(s) which are
(a) foreign branches of United States financial institutions (financial
institutions, as defined in United States Treasury Regulations Section 1.165-
12(c)(1)(v) are herein referred to as "financial institutions") purchasing for
their own account or for resale, or (b) United States person(s) who acquired the
Securities through foreign branches of United States financial institutions and
who hold the Securities through such United States financial institutions on the
date hereof (and in either case (a) or (b), each such United States financial
institution hereby agrees, on its own behalf or through its agent, that you may
advise Security Capital Group Incorporated or its agent that such financial
institution will provide a certificate within a reasonable time stating that it
agrees to comply with the requirements of Section 165(j)(3)(A), (B) or (C) of
the United States Internal Revenue Code of 1986, as amended, and the regulations
thereunder), or (iii) are owned by a financial institution for purposes of
resale during the restricted period (as defined in United States Treasury
Regulations Section 1.163-5(c)(2)(i)(D)(7)), and, such financial institution
described in clause (iii) above (whether or not also described in clause (i) or
(ii)), certifies that it has not acquired the Securities for purposes of resale
directly or indirectly to a United States person or to a person within the
United States or its possessions.

     As used herein, "United States" means the United States of America
(including the States and the District of Columbia); and its "possessions"
include Puerto Rico, the U.S. Virgin Islands, Guam, American Samoa, Wake Island
and the Northern Mariana Islands.
<PAGE>
 
     We undertake to advise you promptly by tested telex on or prior to the date
on which you intend to submit your certification relating to the above-captioned
Securities held by you for our account in accordance with your Operating
Procedures if any applicable statement herein is not correct on such date, and
in the absence of any such notification it may be assumed that this
certification applies as of such date.

     This certificate excepts and does not relate to [U.S.$] _______________ of
such interest in the above-captioned Securities in respect of which we are not
able to certify and as to which we understand an exchange for an interest in a
Permanent Global Security or an exchange for and delivery of definitive
Securities (or, if relevant, collection of any interest) cannot be made until we
do so certify.

     We understand that this certificate may be required in connection with
certain tax legislation in the United States. If administrative or legal
proceedings are commenced or threatened in connection with which this
certificate is or would be relevant, we irrevocably authorize you to produce
this certificate or a copy thereof to any interested party in such proceedings.


Dated: __________ ___, 19___
[To be dated no earlier than the 15th day prior
to the earlier of (i) the Exchange Date or
(ii) the relevant Interest Payment Date occurring
prior to the Exchange Date, as applicable]

                              [Name of Person Making Certification]


                              ___________________________________
                              (Authorized Signatory)
                              Name:
                              Title:
<PAGE>
 
                                  EXHIBIT A-2

                 FORM OF CERTIFICATE TO BE GIVEN BY EUROCLEAR
               AND CEDEL S.A. IN CONNECTION WITH THE EXCHANGE OF
                A PORTION OF A TEMPORARY GLOBAL SECURITY OR TO
              OBTAIN INTEREST PAYABLE PRIOR TO THE EXCHANGE DATE

                                  CERTIFICATE

[INSERT TITLE OR SUFFICIENT DESCRIPTION OF SECURITIES TO BE DELIVERED]

     This is to certify that, based solely on written certifications that we
have received in writing, by tested telex or by electronic transmission from
each of the persons appearing in our records as persons entitled to a portion of
the principal amount set forth below (our "Member Organizations") substantially
in the form attached hereto, as of the date hereof, [U.S.$] _______________
principal amount of the above-captioned Securities (i) is owned by person(s)
which are not citizens or residents of the United States, domestic partnerships,
domestic corporations or any estate or trust the income of which is subject to
United States Federal income taxation regardless of its source ("United States
person(s)"), (ii) is owned by United States persons(s) which are (a) foreign
branches of United States financial institutions (financial institutions, as
defined in United States Treasury Regulations Section 1.165-12(c)(1)(v) are
herein referred to as "financial institutions") purchasing for their own account
or for resale, or (b) United States person(s) who acquired the Securities
through foreign branches of United States financial institutions and who hold
the Securities through such United States financial institutions on the date
hereof (and in either case (a) or (b), each such financial institution has
agreed, on its own behalf or through its agent, that we may advise Security
Capital Group Incorporated or its agent that such financial institution will
provide a certificate within a reasonable time stating that it agrees to comply
with the requirements of Section 165(j)(3)(A), (B) or (C) of the Internal
Revenue Code of 1986, as amended, and the regulations thereunder), or (iii) is
owned by a financial institution for purposes of resale during the restricted
period (as defined in United States Treasury Regulations Section 1.163-
5(c)(2)(i)(D)(7)), and that such financial institutions described in clause
(iii) above (whether or not also described in clause (i) or (ii)) have certified
that they have not acquired the Securities for purposes of resale directly or
indirectly to a United States person or to a person within the United States or
its possessions.

     As used herein, "United States" means the United States of America
(including the States and the District of Columbia); and its "possessions"
include Puerto Rico, the U.S. Virgin Islands, Guam, American Samoa, Wake Island
and the Northern Mariana Islands.

     We further certify that (i) we are not making available herewith for
exchange (or, if relevant, collection of any interest) any portion of the
temporary global Security representing
<PAGE>
 
the above-captioned Securities excepted in the above-referenced certificates of
Member Organizations and (ii) as of the date hereof we have not received any
notification from any of our Member Organizations to the effect that the
statements made by such Member Organizations with respect to any portion of the
part submitted herewith for exchange (or, if relevant, collection of any
interest) are no longer true and cannot be relied on as of the date hereof.

     We understand that this certification is required in connection with
certain tax legislation in the United States. If administrative or legal
proceedings are commenced or threatened in connection with which this
certificate is or would be relevant, we irrevocably authorize you to produce
this certificate or a copy thereof to any interested party in such proceedings.


Dated: __________ ___, 19___
[To be dated no earlier than the earlier of
the Exchange Date or the relevant Interest
Payment Date occurring prior to the Exchange
Date, as applicable]

                                  [Morgan Guaranty Trust Company of New York,
                                  Brussels Office,] as Operator of the Euroclear
                                  System
                                  [Cedel S.A.]


                                  By:__________________________________________

<PAGE>
 
                                                                     EXHIBIT 5.1


                     [LETTERHEAD OF MAYER, BROWN & PLATT]


                              September 30, 1998


Security Capital Group Incorporated
125 Lincoln Avenue
Santa Fe, New Mexico 87501

          Re:  Registration Statement on Form S-3

Ladies and Gentlemen:

     We have acted as counsel to Security Capital Group Incorporated, a Maryland
corporation ("Security Capital"), in connection with the proposed sale of the
following securities (the "Securities") of Security Capital, as set forth in the
Form S-3 Registration Statement filed with the Securities and Exchange
Commission on the date hereof (the "Registration Statement"): (i) one or more
series of unsecured debt securities (the "Debt Securities"), which may be senior
debt securities or subordinated debt securities, (ii) one or more series of
preferred stock, par value $.01 per share (the "Preferred Shares"), (iii) common
stock, par value $.01 per share (the "Common Shares"), and (iv) one or more
series of warrants to purchase Debt Securities, Preferred Shares or Common
Shares (the "Securities Warrants").

     Each series of the Debt Securities will be issued under an Indenture (an
"Indenture") to be entered into between Security Capital and State Street Bank
and Trust Company, as Trustee. Each series of the Preferred Shares will be
issued under Security Capital's charter, as amended and supplemented (the
"Charter"), and Articles Supplementary to be filed with the Maryland State
Department of Assessments and Taxation (the "Maryland SDAT"). The Common Shares
will be issued under the Charter. The Securities Warrants will be issued under
one or more warrant agreements (each, a "Warrant Agreement"), each to be entered
into between Security Capital and a financial institution identified therein as
a warrant agent (each, a "Warrant Agent"). Certain terms of the Securities to be
issued by Security Capital from time to time will be approved by the Board of
Directors of Security Capital or a committee thereof as part of the corporate
action taken and to be taken in connection with the authorization of the
issuance of the Securities (the "Corporate Proceedings").


                     [LETTERHEAD OF MAYER, BROWN & PLATT]
<PAGE>
 
Security Capital Group
  Incorporated
September 30, 1998
Page 2


     As counsel to Security Capital, we have examined originals or copies
certified to our satisfaction of Security Capital's Charter, Security Capital's
Bylaws, resolutions of Security Capital's Board of Directors and such records,
certificates and other documents and such questions of law as we considered
necessary or appropriate for the purpose of this opinion. As to certain facts
material to our opinion, we have relied, to the extent we deem such reliance
proper, upon certificates of public officials and officers of Security Capital.
In rendering such opinion, we have assumed the genuineness of all signatures,
the authenticity of all documents submitted to us as originals and the
conformity to authentic original documents of all documents submitted to us as
copies.

     Based upon and subject to the foregoing and to the assumptions, conditions
and limitations set forth herein, we are of the opinion that:

     (1) when the Registration Statement has become effective under the
Securities Act of 1933, as amended (the "Act"), and upon the completion of the
Corporate Proceedings relating to a series of the Debt Securities, the due
execution, authentication, issuance and delivery of the Debt Securities of such
series, and the due execution and delivery of the Indenture, the Debt Securities
of such series, when sold in exchange for the consideration set forth in the
Prospectus contained in the Registration Statement and any Prospectus Supplement
relating to such series of the Debt Securities, will be duly authorized and will
be binding obligations of Security Capital enforceable in accordance with their
terms and entitled to the benefits of the Indenture, except as such
enforceability may be limited by bankruptcy, insolvency, reorganization or
similar laws affecting creditors' rights generally and subject to general
principles of equity;

     (2) when the Registration Statement has become effective under the Act and
upon the completion of the Corporate Proceedings relating to a series of the
Preferred Shares, the execution, delivery and filing with, and recording by, the
Maryland SDAT of Articles Supplementary relating to such series of the Preferred
Shares and the due execution, countersignature and delivery of certificates
representing the shares of the Preferred Shares of such series, the Preferred
Shares of such series, when sold in exchange for the consideration set forth in
the Prospectus and any Prospectus Supplement relating to such series of the
Preferred Shares, will be duly authorized, legally issued, fully paid and
nonassessable;

     (3) when the Registration Statement has become effective under the Act and
upon the completion of the Corporate Proceedings relating to the Common Shares
and the due execution, countersignature and delivery of certificates
representing the Common Shares, the Common Shares, when sold in exchange for the
consideration set forth in the Prospectus and any Prospectus
<PAGE>
 
Security Capital Group
  Incorporated
September 30, 1998
Page 3


Supplement relating to the Common Shares, will be duly authorized, legally
issued, fully paid and nonassessable; and

     (4) when the Registration Statement has become effective under the Act and
when a series of the Securities Warrants has been duly established pursuant to
the relevant Warrant Agreement and upon the completion of the Corporate
Proceedings relating to such series of the Securities Warrants and the due
execution, authentication, issuance and delivery of the Securities Warrants of
such series, the Securities Warrants of such series, when sold in exchange for
the consideration set forth in the Prospectus and any Prospectus Supplement
relating to such series of the Securities Warrants, will be duly authorized and
will be binding obligations of Security Capital enforceable against Security
Capital in accordance with their respective terms, except as such enforceability
may be limited by bankruptcy, insolvency, reorganization or similar laws
affecting creditors' rights generally and subject to general principles of
equity.

     To the extent that the obligations of Security Capital under each Warrant
Agreement may be dependent upon such matters, we assume for purposes of this
opinion that the Warrant Agent will be duly organized, validly existing and in
good standing under the laws of its jurisdiction of organization; that the
Warrant Agent will be duly qualified to engage in the activities contemplated by
the Warrant Agreement; that the Warrant Agreement will be duly authorized,
executed and delivered by the Warrant Agent and will constitute the legal, valid
and binding obligation of the Warrant Agent enforceable against the Warrant
Agent in accordance with its terms; that the Warrant Agent will be in
compliance, generally with respect to acting as a Warrant Agent under the
Warrant Agreement, with all applicable laws and regulations; and that the
Warrant Agent will have the requisite organizational and legal power and
authority to perform its obligations under the Warrant Agreement.

     We consent to the filing of this opinion as an exhibit to the Registration
Statement and to the reference to us under the caption "Legal Matters."

                                       Very truly yours,

                                   /s/ Mayer, Brown & Platt
                                       MAYER, BROWN & PLATT

<PAGE>
 
                                                                    EXHIBIT 15.1
 

               [LETTERHEAD OF ARTHUR ANDERSEN LLP APPEARS HERE]



September 28, 1998  


Board of Directors and Shareholders of
Security Capital Group Incorporated:

We are aware that Security Capital Group Incorporated has incorporated by 
reference in its Registration Statement on Form S-3, its Form 10-Q's for the 
quarters ended March 31, 1998 and June 30, 1998, which include our reports dated
May 12, 1998 and August 14, 1998 covering the unaudited interim financial 
information contained therein. Pursuant to Regulation C of the Securities Act of
1933 (the "Act"), those reports are not considered a part of such registration 
statement or a report prepared or certified by our firm within the meaning of 
Sections 7 and 11 of the Act.


Very Truly Yours,




/s/ Arthur Andersen LLP
ARTHUR ANDERSEN LLP

<PAGE>
 
 
                                                                    EXHIBIT 23.2

                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

     As independent public accountants, we hereby consent to the incorporation 
by reference in this Registration Statement on Form S-3 of our Security Capital 
Group Incorporated report dated March 18, 1998, our ProLogis Trust (formerly 
known as Security Capital Industrial Trust) reports dated March 13, 1998 and to 
all references to our Firm included in or made a part of this Registration 
Statement.



                                                         /s/ Arthur Andersen LLP
                                                         ARTHUR ANDERSEN LLP


Chicago, Illinois
September 28, 1998






<PAGE>
 

                                                                    Exhibit 23.3

 
                        CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

We consent to the incorporation by reference in this Registration Statement on
Form S-3 of Security Capital Group Incorporated of our report dated January 31,
1998, except as to Note 13 which is as of March 6, 1998, relating to the balance
sheets of Security Capital Pacific Trust as of December 31, 1997 and 1996, the
related statements of earnings, shareholders' equity, and cash flows for each of
the years in the three-year period ended December 31, 1997, and the related
schedule as of December 31, 1997, which report appears in the December 31, 1997
annual report on Form 10-K of Security Capital Group Incorporated, and to the
reference to our firm under the heading "Experts" in the Registration Statement.


/s/ KPMG Peat Marwick LLP
KPMG Peat Marwick LLP



Chicago, Illinois
September 29, 1998


<PAGE>

                                                                    Exhibit 23.4
 
CONSENT OF INDEPENDENT ACCOUNTANTS

We hereby consent to the incorporation by reference in the Prospectus
constituting part of this Registration Statement on Form S-3 of our reports
dated February 28, 1997 and February 25, 1998 related to the consolidated
financial statements of Security Capital U.S. Realty, appearing in Security
Capital's Form 10-K for the year ended December 31, 1997. We also consent to the
reference to us under the heading "Experts" in such Prospectus.



/s/ Price Waterhouse
PRICE WATERHOUSE SARL

Luxembourg
September 29, 1998

<PAGE>
 

                                                                    Exhibit 23.5

 
                        CONSENT OF INDEPENDENT AUDITORS

     We consent to the reference to our firm under the caption "Experts" and to 
the use of our report dated February 24, 1997 with respect to the financial 
statements at December 31, 1996 and for the year ended December 31, 1996 of 
Homestead Village Incorporated, which is incorporated by reference in the
Registration Statement on Form S-3 of Security Capital Group Incorporated for
the registration of $1,000,000,000 in debt and equity securities.



                                                  /s/ Ernst & Young LLP
                                                      Ernst & Young LLP


Dallas, Texas
September 24, 1998


<PAGE>

                                                                    Exhibit 23.6

 
                        CONSENT OF INDEPENDENT AUDITORS

     We consent to the reference to our firm under the caption "Experts" and to
the use of our report dated February 3, 1997 with respect to the financial
statements at December 31, 1996 and 1995 and for each of the three years in the
period ended December 31, 1996 of Security Capital Atlantic Incorporated, which
is incorporated by reference in the Registration Statement on Form S-3 of
Security Capital Group Incorporated for the registration of $1,000,000,000 in
debt and equity securities.


                                                  /s/ Ernst & Young LLP
                                                      Ernst & Young LLP
     

Dallas Texas
September 24, 1998

<PAGE>
                                                                    Exhibit 25.1

                       SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549


                                    FORM T-1
                                   __________

                       STATEMENT OF ELIGIBILITY UNDER THE
                        TRUST INDENTURE ACT OF 1939 OF A
                    CORPORATION DESIGNATED TO ACT AS TRUSTEE

                Check if an Application to Determine Eligibility
                   of a Trustee Pursuant to Section 305(b)(2)


                      STATE STREET BANK AND TRUST COMPANY
              (Exact name of trustee as specified in its charter)

            Massachusetts                                        04-1867445
   (Jurisdiction of incorporation or                          (I.R.S. Employer
organization if not a U.S. national bank)                    Identification No.)

            225 Franklin Street, Boston, Massachusetts          02110
             (Address of principal executive offices)         (Zip Code)

  Maureen Scannell Bateman, Esq. Executive Vice President and General Counsel
               225 Franklin Street, Boston, Massachusetts 02110
                                 (617) 654-3253
           (Name, address and telephone number of agent for service)


                      SECURITY CAPITAL GROUP INCORPORATED
              (Exact name of obligor as specified in its charter)

          MARYLAND                                               36-3692698
(State or other jurisdiction of                               (I.R.S. Employer
incorporation or organization)                               Identification No.)

                               125 LINCOLN AVENUE
                           SANTA FE, NEW MEXICO 87501
              (Address of principal executive offices) (Zip Code)
                                        
                                DEBT SECURITIES
                                        
                        (Title of indenture securities)
<PAGE>
 
                                    GENERAL

Item 1.  General Information.

     Furnish the following information as to the trustee:

     (a) Name and address of each examining or supervisory authority to which
     it is subject.

          Department of Banking and Insurance of The Commonwealth of
          Massachusetts, 100 Cambridge Street, Boston, Massachusetts.

          Board of Governors of the Federal Reserve System, Washington, D.C.,
          Federal Deposit Insurance Corporation, Washington, D.C.
 
     (b) Whether it is authorized to exercise corporate trust powers. 
     Trustee is authorized to exercise corporate trust powers.

Item 2.  Affiliations with Obligor.

     If the Obligor is an affiliate of the trustee, describe each such
affiliation.

          The obligor is not an affiliate of the trustee or of its parent, State
          Street Corporation.

          (See note on page 2.)

Item 3. through Item 15.  Not applicable.

Item 16.  List of Exhibits.

     List below all exhibits filed as part of this statement of eligibility.

     1. A copy of the articles of association of the trustee as now in effect.

          A copy of the Articles of Association of the trustee, as now in
          effect, is on file with the Securities and Exchange Commission as
          Exhibit 1 to Amendment No. 1 to the Statement of Eligibility and
          Qualification of Trustee (Form T-1) filed with the Registration
          Statement of Morse Shoe, Inc. (File No. 22-17940) and is incorporated
          herein by reference thereto.

     2. A copy of the certificate of authority of the trustee to commence
     business, if not contained in the articles of association.

          A copy of a Statement from the Commissioner of Banks of Massachusetts
          that no certificate of authority for the trustee to commence business
          was necessary or issued is on file with the Securities and Exchange
          Commission as Exhibit 2 to Amendment No. 1 to the Statement of
          Eligibility and Qualification of Trustee (Form T-1) filed with the
          Registration Statement of Morse Shoe, Inc. (File No. 22-17940) and is
          incorporated herein by reference thereto.
 
     3. A copy of the authorization of the trustee to exercise corporate trust
     powers, if such authorization is not contained in the documents specified
     in paragraph (1) or (2), above.

          A copy of the authorization of the trustee to exercise corporate trust
          powers is on file with the Securities and Exchange Commission as
          Exhibit 3 to Amendment No. 1 to the Statement of Eligibility and
          Qualification of Trustee (Form T-1) filed with the Registration
          Statement of Morse Shoe, Inc. (File No. 22-17940) and is incorporated
          herein by reference thereto.

     4. A copy of the existing by-laws of the trustee, or instruments
     corresponding thereto.

          A copy of the by-laws of the trustee, as now in effect, is on file
          with the Securities and Exchange Commission as Exhibit 4 to the
          Statement of Eligibility and Qualification of Trustee (Form T-1) filed
          with the Registration Statement of Eastern Edison Company (File No. 
          33-37823) and is incorporated herein by reference thereto.

                                       1
<PAGE>
 
     5. A copy of each indenture referred to in Item 4. if the obligor is in
     default.

          Not applicable.

     6. The consents of United States institutional trustees required by
     Section 321(b) of the Act.

          The consent of the trustee required by Section 321(b) of the Act is
          annexed hereto as Exhibit 6 and made a part hereof.

     7. A copy of the latest report of condition of the trustee published
     pursuant to law or the requirements of its supervising or examining 
     authority.

          A copy of the latest report of condition of the trustee published
          pursuant to law or the requirements of its supervising or examining
          authority is annexed hereto as Exhibit 7 and made a part hereof.

                                     NOTES

     In answering any item of this Statement of Eligibility which relates to
matters peculiarly within the knowledge of the obligor or any underwriter of
the obligor, the trustee has relied upon information furnished to it by the
obligor and the underwriters, and the trustee disclaims responsibility for the
accuracy or completeness of such information.

     The answer furnished to Item 2. of this statement will be amended, if
necessary, to reflect any facts which differ from those stated and which would
have been required to be stated if known at the date hereof.


                                   SIGNATURE
                                        
                                        
     Pursuant to the requirements of the Trust Indenture Act of 1939, as
amended, the trustee, State Street Bank and Trust Company, a corporation
organized and existing under the laws of The Commonwealth of Massachusetts, has
duly caused this statement of eligibility to be signed on its behalf by the
undersigned, thereunto duly authorized, all in the City of Boston and The
Commonwealth of Massachusetts, on the September 28, 1998.


                                      STATE STREET BANK AND TRUST COMPANY

                                             /s/ Carolina D. Altomare
                                      By:______________________________________
                                      NAME  Carolina D. Altomare
                                      TITLE  Assistant Vice President

                                       2
<PAGE>
 
                                   EXHIBIT 6


                             CONSENT OF THE TRUSTEE

     Pursuant to the requirements of Section 321(b) of the Trust Indenture Act
of 1939, as amended, in connection with the proposed issuance by Security
Capital Group Incorporated. of its Debt Securities, we hereby consent that
reports of examination by Federal, State, Territorial or District authorities
may be furnished by such authorities to the Securities and Exchange Commission
upon request therefor.

                                      STATE STREET BANK AND TRUST COMPANY

                                              /s/ Carolina D. Altomare
                                      By:___________________________________
                                      NAME  Carolina D. Altomare
                                      TITLE  Assistant Vice President

Dated: September 28, 1998

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<PAGE>
 
                                   EXHIBIT 7

Consolidated Report of Condition of State Street Bank and Trust Company,
Massachusetts and foreign and domestic subsidiaries, a state banking institution
organized and operating under the banking laws of this commonwealth and a member
of the Federal Reserve System, at the close of business June 30, 1998, published
in accordance with a call made by the Federal Reserve Bank of this District
pursuant to the provisions of the Federal Reserve Act and in accordance with a
call made by the Commissioner of Banks under General Laws, Chapter 172, Section
22(a).

<TABLE>
<CAPTION>
 
                                                                                  Thousands of
ASSETS                                                                               Dollars
<S>                                                                               <C>
Cash and balances due from depository institutions:
     Noninterest-bearing balances and currency and coin........................     1,553,703
     Interest-bearing balances.................................................     12,440,716
Securities.....................................................................      9,436,138
Federal funds sold and securities purchased
     under agreements to resell in domestic offices
     of the bank and its Edge subsidiary.......................................      8,785,353
Loans and lease financing receivables:
     Loans and leases, net of unearned income ............ 6,633,608
     Allowance for loan and lease losses..................    92,999
     Allocated transfer risk reserve......................         0
     Loans and leases, net of unearned income and allowances...................      6,540,609
Assets held in trading accounts................................................     1, 267,679
Premises and fixed assets......................................................        491,928
Other real estate owned........................................................            100
Investments in unconsolidated subsidiaries.....................................          1,278
Customers' liability to this bank on acceptances outstanding...................         68,312
Intangible assets..............................................................        231,294
Other assets...................................................................      1,667,282
                                                                                    ----------
 
Total assets...................................................................     42,484,392
                                                                                    ==========
LIABILITIES
 
Deposits:
     In domestic offices.......................................................     12,553,371
        Noninterest-bearing ..............................10,204,405
        Interest-bearing.................................. 2,348,966
     In foreign offices and Edge subsidiary....................................     16,961,571
        Noninterest-bearing....................................................        154,792
        Interest-bearing.......................................................     16,806,779
Federal funds purchased and securities sold under
     agreements to repurchase in domestic offices of
     the bank and of its Edge subsidiary.......................................      8,182,794
Demand notes issued to the U.S. Treasury and Trading Liabilities...............              0
Trading liabilities............................................................        883,096
Other borrowed money...........................................................        361,141
Subordinated notes and debentures..............................................              0
Bank's liability on acceptances executed and outstanding.......................         68,289
Other liabilities..............................................................      1,017,284
 
Total liabilities..............................................................     40,027,546
                                                                                    ----------
EQUITY CAPITAL
Perpetual preferred stock and related surplus..................................              0
Common stock...................................................................         29,931
Surplus........................................................................        455,288
Undivided profits and capital reserves/Net unrealized holding gains (losses)...      1,964,924
Net unrealized holding gains (losses) on available-for-sale securities.........         15,557
Cumulative foreign currency translation adjustments............................         (8,854)
Total equity capital...........................................................      2,456,846
                                                                                    ----------
 
Total liabilities and equity capital...........................................     42,484,392
                                                                                    ----------
</TABLE>

                                       4
<PAGE>
 
I, Rex S. Schuette, Senior Vice President and Comptroller of the above named
bank do hereby declare that this Report of Condition has been prepared in
conformance with the instructions issued by the Board of Governors of the
Federal Reserve System and is true to the best of my knowledge and belief.



                                           Rex S. Schuette




We, the undersigned directors, attest to the correctness of this Report of
Condition and declare that it has been examined by us and to the best of our
knowledge and belief has been prepared in conformance with the instructions
issued by the Board of Governors of the Federal Reserve System and is true and
correct.



                                           David A. Spina
                                           Marshall N. Carter
                                           Truman S. Casner

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