ALLSTATE CORP
8-K, 1997-12-19
FIRE, MARINE & CASUALTY INSURANCE
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                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

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



                                    FORM 8-K

                                 CURRENT REPORT



                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934


      Date of Report (Date of earliest event reported): December 16, 1997


                            THE ALLSTATE CORPORATION
         ---------------------------------------------------------------

              (Exact name of Registrant as specified in its charter



Delaware                          1-11840                         36-3871531
- -------------------------------------------------------------------------------
(State or other                 (Commission                  (I.R.S. Employer
jurisdiction of                  File Number)                Identification No.)
incorporation)

                  2775 Sanders Road, Northbrook, Illinois 60062
              ----------------------------------------------------
               (Address of principal executive offices) (Zip Code)





Registrant's telephone number, including area code:  (847) 402-5000



           -----------------------------------------------------------
                   (Former address, if changed since report.)


<PAGE>   2
ITEM 5.  OTHER EVENTS

                  Exhibits are filed herewith in connection with the Prospectus
Supplement to the Prospectus dated October 1, 1996, filed as part of the
Registration Statement on Form S-3 (Registration No. 333-10857; declared
effective on October 1, 1996) filed by The Allstate Corporation (the "Company")
with the Securities and Exchange Commission covering Debt Securities issuable
under an Indenture relating to Senior Debt Securities, dated as of December 16,
1997, between the Company and State Street Bank & Trust Company (the
"Indenture").

                  On December 16, 1997, the Company executed an Underwriting
Agreement (the "Underwriting Agreement") with Morgan Stanley & Co. Incorporated
("MS") and certain other underwriters named therein. Pursuant to the
Underwriting Agreement, the Company will issue $250,000,000 principal amount of
7 1/8 % Senior Quarterly Interest Bonds due December 15, 2097 (the "Bonds") 
under the First Supplemental Indenture, dated as of December 16, 1997. The      
Underwriting Agreement, the form of Bonds, the Indenture and the First
Supplemental Indenture with respect to the Bonds are filed as exhibits hereto.

ITEM 7.  FINANCIAL STATEMENTS, PRO FORMA FINANCIAL INFORMATION AND
EXHIBITS

                  1        Underwriting Agreement, dated as of December 16,
                           between the Company and Morgan Stanley Co.
                           Incorporated and certain other underwriters.

                  4.1      Form of The Allstate Corporation's 71/8 % Senior
                           Quarterly Interest Bonds due December 15, 2097.

                  4.2      Indenture, dated as of December 16, 1997, between the
                           Company and the Trustee relating to Senior Debt
                           Securities.

                  4.3      First Supplemental Indenture, dated as of December
                           16, 1997, between the Company and the Trustee.


                                        2

<PAGE>   3



                                    SIGNATURE


         Pursuant to the requirements of the Securities Exchange Act of 1934,
the registrant has duly caused this report to be signed on its behalf by the
undersigned, thereto duly authorized.


                                        THE ALLSTATE CORPORATION

                                        ----------------------------------- 
                                                 (Registrant)

                                        By:  /s/ Samuel H. Pilch    
                                            -------------------------------  
                                                 By: Samuel H. Pilch
                                                 Its: Controller



Dated:   December 16, 1997



                                        3

<PAGE>   4



                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549








                            THE ALLSTATE CORPORATION








                                    EXHIBITS
                              TO CURRENT REPORT ON
                        FORM 8-K DATED DECEMBER 16, 1997












                                                  Commission File Number 1-11840


                                        4

<PAGE>   5


                                  Exhibit Index

Exhibit No.                Description
- -----------                -----------

  1                 Underwriting Agreement, dated as of December 16,
                    between the Company and Morgan Stanley Co.
                    Incorporated and certain other underwriters.

  4.1               Form of The Allstate Corporation's 7 1/8 % Senior
                    Quarterly Interest Bonds due December 15, 2097.

  4.2               Indenture, dated as of December 16, 1997, between
                    the Company and the Trustee relating to Senior Debt
                    Securities.

  4.3               First Supplemental Indenture, dated as of December
                    16, 1997, between the Company and the Trustee.




                                        5


<PAGE>   1
                                                                       EXHIBIT 1


                                  $250,000,000
                            THE ALLSTATE CORPORATION

                7 1/8% Senior Quarterly Interest Bonds ("QUIBS")
                                    Due 2097


                             ----------------------
                             UNDERWRITING AGREEMENT
                             ----------------------

























December 16, 1997




<PAGE>   2
                                                               December 16, 1997





Morgan Stanley & Co. Incorporated
Goldman, Sachs & Co.
Merrill Lynch, Pierce, Fenner & Smith Incorporated
NationsBanc Montgomery Securities, Inc.
PaineWebber Incorporated
Salomon Brothers Inc
c/o      Morgan Stanley & Co. Incorporated
         1585 Broadway, 2nd Floor
         New York, New York  10036


Ladies and Gentlemen:

         The Allstate Corporation, a Delaware corporation (the "Company"),
proposes to issue and sell to the several Underwriters named in Schedule I
hereto (the "Underwriters"), for whom Morgan Stanley & Co. Incorporated,
Goldman, Sachs & Co., Merrill Lynch, Pierce, Fenner & Smith Incorporated,
NationsBanc Montgomery Securities, Inc., PaineWebber Incorporated and Salomon
Brothers Inc are acting as Representatives (the "Representatives"), $250,000,000
principal amount of its 7 1/8% Senior Quarterly Interest Bonds registered under
the Registration Statement referred to in Section 2(a) (the "Securities") to be
issued pursuant to the provisions of an Indenture dated as of December 16, 1997,
as supplemented by the First Supplemental Indenture dated as of December 16,
1997 (as so supplemented, the "Indenture") between the Company and State Street
Bank and Trust Company, as Trustee (the "Trustee").

         1.       Representations and Warranties. The Company represents
and warrants to, and agrees with, each of the Underwriters that:

         (a) The Company has filed with the Securities and Exchange Commission
(the "Commission") a registration statement on Form S-3 (No. 333-10857) under
the Securities Act of 1933, as amended (the "Act"), which has become effective,
for the registration 


<PAGE>   3
under the Act of the Securities. The Company proposes to file with the
Commission pursuant to Rule 424 under the Act a supplement or supplements to the
form of prospectus included in such registration statement relating to the
Securities and the plan of distribution thereof. Such registration statement,
including the exhibits thereto, as amended at the date of this Agreement, is
hereinafter called the "Registration Statement"; such prospectus in the form in
which it appears in the Registration Statement is hereinafter called the "Basic
Prospectus"; and such supplemented form of prospectus, in the form in which it
shall be filed with the Commission pursuant to Rule 424 (including the Basic
Prospectus as so supplemented) is hereinafter called the "Final Prospectus." Any
preliminary form of the Final Prospectus which has heretofore been filed
pursuant to Rule 424 is hereinafter called the "Preliminary Final Prospectus."
Any reference herein to the Registration Statement, the Basic Prospectus, any
Preliminary Final Prospectus or the Final Prospectus shall be deemed to refer to
and include the documents incorporated by reference therein pursuant to Item 12
of Form S-3 which were filed under the Securities Exchange Act of 1934 (the
"Exchange Act") on or before the date of this Agreement, or the issue date of
the Basic Prospectus, any Preliminary Final Prospectus or the Final Prospectus,
as the case may be; and any reference herein to the terms "amend," "amendment"
or "supplement" with respect to the Registration Statement, the Basic
Prospectus, any Preliminary Final Prospectus or the Final Prospectus shall be
deemed to refer to and include the filing of any document under the Exchange Act
after the date of this Agreement, or the issue date of the Basic Prospectus, any
Preliminary Final Prospectus or the Final Prospectus, as the case may be, deemed
to be incorporated therein by reference;

         (b) As of the date hereof, when the Final Prospectus is first filed or
transmitted for filing pursuant to Rule 424 under the Act, when, prior to the
Closing Date (as hereinafter defined), any amendment to the Registration
Statement becomes effective (including the filing of any document incorporated
by reference in the Registration Statement), when any supplement to the Final
Prospectus is filed with the Commission and at the Closing Date, (i) the
Registration Statement, as amended as of any such time, and the Final
Prospectus, as amended or supplemented as of any such time, and, the Indenture
will comply 


                                      -2-
<PAGE>   4

in all material respects with the applicable requirements of the Act, the Trust
Indenture Act of 1939, as amended (the "Trust Indenture Act"), and the Exchange
Act and the respective rules thereunder and (ii) neither the Registration
Statement, as amended as of any such time, nor the Final Prospectus, as amended
or supplemented as of such time, will contain any untrue statement of a material
fact or omit to state any material fact required to be stated therein or
necessary in order to make the statements therein not misleading; provided,
however, that the Company makes no representations or warranties as to (i) that
part of the Registration Statement which shall constitute the Statement of
Eligibility and Qualification (Form T-1) under the Trust Indenture Act of the
Trustees (the "Form T-1") or (ii) the information contained in or omitted from
the Registration Statement or the Final Prospectus or any amendment thereof or
supplement thereto in reliance upon and in conformity with information relating
to such Underwriter or the underwriting arrangements furnished in writing to the
Company by any Underwriter specifically for use in the Registration Statement
and the Final Prospectus.

         (c) Each document incorporated by reference in the Registration
Statement and the Final Prospectus will comply in all material respects, as
amended at the time the Registration Statement becomes effective, with the
Exchange Act.

         (d) The Company has been duly incorporated, is validly existing as a
corporation in good standing under the laws of the jurisdiction of its
incorporation, has the corporate power and authority to own its property and to
conduct its business as described in the Final Prospectus and is duly qualified
to transact business and is in good standing in each jurisdiction in which the
conduct of its business or its ownership or leasing of property requires such
qualification, except to the extent that the failure to be so qualified or be in
good standing would not have a material adverse effect on the Company and its
subsidiaries, taken as a whole.

         (e) Each subsidiary of the Company listed in Schedule III hereto (each,
a "Principal Subsidiary") has been duly incorporated, is validly existing as a
corporation in good standing under the laws of the jurisdiction of its
incorporation, 

                                      -3-

<PAGE>   5

has the corporate power and authority to own its property and to conduct its
business as described in the Final Prospectus and is duly qualified to transact
business and is in good standing in each jurisdiction in which the conduct of
its business or its ownership or leasing of property requires such
qualification, except to the extent that the failure to be so qualified or be in
good standing would not have a material adverse effect on the Company and its
subsidiaries, taken as a whole.

         (f) This Agreement has been duly authorized, executed and delivered by
the Company.

         (g) The Indenture has been duly qualified under the Trust Indenture Act
and has been duly authorized, executed and delivered by the Company and is a
valid and binding agreement of the Company, enforceable in accordance with its
terms except as (i) the enforceability thereof may be limited by bankruptcy,
insolvency or similar laws affecting creditors' rights generally and (ii) rights
of acceleration and the availability of equitable remedies may be limited by
equitable principles of general applicability.

         (h) The Securities have been duly authorized and, when the Securities
are issued and delivered pursuant to this Agreement with respect to such
Securities, such Securities will have been duly executed, authenticated, issued
and delivered and will constitute valid and legally binding obligations of the
Company entitled to the benefits provided by the Indenture; and

         (i) The issuance and sale of the Securities and compliance by the
Company with all of the provisions of the Securities, the Indenture and this
Agreement will not conflict with or result in a breach or violation of any of
the terms or provisions of, or constitute a default under, any indenture,
mortgage, deed of trust, loan agreement or other agreement or instrument for
borrowed money to which the Company or any Principal Subsidiary is a party or by
which the Company or any of its Principal Subsidiaries is bound or to which any
of the property or assets of the Company or any of its Principal Subsidiaries is
subject, nor will such action result in any violation of the provisions of the
Certificate of Incorporation or By-laws of the Company or any of its Principal
Subsidiaries or any statute or any order, rule 

                                      -4-
<PAGE>   6

or regulation of any court or insurance regulatory authority or other
governmental agency or body having jurisdiction over the Company or any of its
Principal Subsidiaries or any of their properties, in each case other than such
breaches, conflicts, violations or defaults which, individually or in the
aggregate, would not have a material adverse effect on the Company and its
subsidiaries considered as a whole, and no authorization, approval, order,
consent, registration or qualification of or with any such court or insurance
regulatory authority or other governmental agency or body is required for the
issue or sale of the Securities, except (i) the registration under the Act of
the Securities; and (ii) such authorizations, approvals, orders, consents,
registrations or qualifications as may be required under the Trust Indenture Act
or state or foreign securities or Blue Sky laws in connection with the purchase
and distribution of the Securities by the Underwriters, in each case other than
such authorizations, approvals, orders, consents, registrations or
qualifications which (individually or in the aggregate) the failure to make,
obtain or comply with would not have a material adverse effect on the Company
and its subsidiaries, taken as a whole.

         (j) The Company is not an "investment company" or an entity
"controlled" by an "investment company," as such terms are defined in the
Investment Company Act of 1940, as amended.

         2. Terms of Sale. The Company hereby agrees to sell to the several
Underwriters, and the Underwriters, upon the basis of the representations and
warranties herein contained, but subject to the conditions hereinafter stated,
agree, severally and not jointly, to purchase from the Company the respective
principal amounts of the Securities set forth in Schedule I hereto opposite
their names at 96.85% of their principal amount -- the purchase price -- plus
accrued interest, if any, from December 19, 1997 to the date of payment and
delivery.

         3. Payment and Delivery of the Securities. Payment for the Securities
shall be made by wire transfer payable to the order of the Company in
immediately available funds at the office of Morgan Stanley & Co. Incorporated,
1585 Broadway, New York, New York, at 10:00 A.M., local time, on December 19,
1997, or at such other time on the same or such other date, not later than

                                      -5-

<PAGE>   7

December 24, 1997, as shall be designated in writing by you. The time and date
of such payment are hereinafter referred to as the "Time of Delivery" for such
Securities.

         Payment for the Securities shall be made against delivery to you or a
depositary on your behalf for the respective accounts of the several
Underwriters of the Securities registered in such names and in such
denominations as you shall request in writing not later than two full business
days prior to the date of delivery, with any transfer taxes payable in
connection with the transfer of the Securities to the Underwriters duly paid.

         4. Company Covenants. The Company agrees with each of the Underwriters
of the Securities:

         (a) (i) To prepare the Final Prospectus as amended and supplemented in
relation to the Securities in a form approved by the Representatives and to
timely file such Final Prospectus pursuant to Rule 424(b) under the Act; (ii) to
make no further amendment or any supplement to the Registration Statement or
Final Prospectus as amended or supplemented after the date hereof and prior to
the Time of Delivery for the Securities unless the Representatives shall have
had a reasonable opportunity to review and comment upon any such amendment or
supplement prior to any filing thereof; (iii) to advise the Representatives
promptly of any such amendment or supplement after such Time of Delivery and
furnish the Representatives with copies thereof; (iv) to file promptly all
reports and any definitive proxy or information statements required to be filed
by the Company with the Commission pursuant to Section 13(a), 13(c), 14 or 15(d)
of the Exchange Act for so long as the delivery of a prospectus is required in
connection with the offering or sale of the Securities, and during such same
period to advise the Representatives, promptly after it receives notice thereof,
of (I) the time when any amendment to any Registration Statement has been filed
or becomes effective or any supplement to the Final Prospectus or any amended
Final Prospectus has been filed with the Commission, (II) the issuance by the
Commission of any stop order or of any order preventing or suspending the use of
the Final Prospectus, (III) the suspension of the qualification of the
Securities for offering or sale in any jurisdiction or of the initiation or
threatening of any proceeding for any such purpose,


                                      -6-

<PAGE>   8

or (IV) any request by the Commission for the amending or supplementing of any
Registration Statement or the Final Prospectus or for additional information;
and, in the event of the issuance of any such stop order or of any such order
preventing or suspending the use of the Final Prospectus or suspending any such
qualification, to use promptly its best efforts to obtain its withdrawal;

         (b) Promptly from time to time to take such action as the
Representatives may reasonably request to qualify the Securities for offering
and sale under the securities and insurance securities laws of such
jurisdictions as the Representatives may request and to comply with such laws so
as to permit the continuance of sales and dealings therein in such jurisdictions
for as long as may be necessary to complete the distribution of the Securities,
provided that in connection therewith the Company shall not be required to
qualify as a foreign corporation or to file a general consent to service of
process in any jurisdiction;

         (c) To furnish the Underwriters with copies of the Final Prospectus as
amended or supplemented in such quantities as the Representatives may from time
to time reasonably request, and, if the delivery of a prospectus is required at
any time in connection with the offering or sale of the Securities, and if at
such time any event shall have occurred as a result of which the Final
Prospectus as then amended or supplemented would include an untrue statement of
a material fact or omit to state any material fact necessary in order to make
the statements therein, in light of the circumstances under which they were made
when such Final Prospectus is delivered, not misleading, or, if for any other
reason it shall be necessary during such period to amend or supplement the Final
Prospectus or to file under the Exchange Act any document incorporated by
reference in the Final Prospectus in order to comply with the Act, the Exchange
Act or the Trust Indenture Act, to notify the Representatives and upon their
request to prepare and furnish without charge to each Underwriter and to any
dealer in securities as many copies as the Representatives may from time to time
reasonably request of an amended Final Prospectus or a supplement to the Final
Prospectus or a document incorporated by reference in the Final Prospectus which
will correct such statement or omission or effect such compliance;
                                      -7-
<PAGE>   9

         (d) To make generally available to its securityholders as soon as
practicable, but in any event not later than eighteen months after the effective
date of the Registration Statement, an earnings statement of the Company and its
subsidiaries (which need not be audited) complying with Section 11(a) of the Act
and the rules and regulations thereunder; and

         (e) During the period beginning from the date hereof and continuing to
and including the latter of (i) the termination of trading restrictions for the
Securities, as notified to the Company by the Representatives or their counsel
and (ii) the Time of Delivery for the Securities, not to offer, sell, contract
to sell or otherwise dispose of any securities of the Company which are
substantially similar to the Securities, without the prior written consent of
the Representatives, which consent shall not be unreasonably withheld.

         5. Fees and Expenses. The Company covenants and agrees with the several
Underwriters that the Company will pay or cause to be paid the following: (i)
the fees, disbursements and expenses of the Company's counsel and accountants in
connection with the registration of the Securities under the Act and all other
expenses in connection with the preparation, printing and filing of the
Registration Statement, Basic Prospectus, any Preliminary Final Prospectus and
the Final Prospectus and amendments and supplements thereto and the mailing and
delivering of copies thereof to the Underwriters and dealers; (ii) the cost of
printing or producing this Agreement, the Indenture, any Blue Sky Survey and any
Legal Investment Memoranda in connection with the offering, purchase, sale and
delivery of the Securities; (iii) all reasonable expenses in connection with the
qualification of the Securities for offering and sale under state securities and
insurance securities laws as provided in Section 4(b) hereof, including the
reasonable fees and disbursements of counsel for the Underwriters in connection
with such qualification and in connection with the Blue Sky and Legal Investment
surveys; (iv) the filing fees incident to securing any required review by the
National Association of Securities Dealers, Inc. of the terms of the sale of the
Securities; (v) any fees charged by securities rating services for rating the
Securities; (vi) the cost of preparing the Securities; (vii) the fees and
expenses of any Trustee, Paying Agent or Transfer Agent 

                                      -8-

<PAGE>   10
and the fees and disbursements of counsel for any such Trustee, Paying Agent or
Transfer Agent in connection with the Indenture and the Securities; and (viii)
all other costs and expenses incident to the performance of its obligations
hereunder which are not otherwise specifically provided in this Section. It is
understood, however, that, except as provided in this Section, Section 7 and
Section 8 hereof, the Underwriters will pay all of their own costs and expenses,
including the fees of their counsel, transfer taxes on resale of any of the
Securities by them, and any advertising expenses connected with any offers they
may make.

         6. Conditions to Underwriters' Obligations. The obligations of the
Underwriters of the Securities shall be subject to the condition that all
representations and warranties of the Company herein are, at and as of the Time
of Delivery for the Securities, true and correct, the condition that the Company
shall have performed all of its obligations hereunder to be performed at or
before such Time of Delivery, and the following additional conditions:

         (a) The Final Prospectus as amended or supplemented in relation to the
Securities shall have been filed with the Commission pursuant to Rule 424(b)
within the applicable time period prescribed for such filing by the rules and
regulations under the Act and in accordance with Section 4(a) hereof; no stop
order suspending the effectiveness of the Registration Statement or any part
thereof shall have been issued and no proceeding for that purpose shall have
been initiated or threatened by the Commission; and all requests for additional
information on the part of the Commission shall have been complied with to the
Representatives' reasonable satisfaction;

         (b) Kirkland & Ellis, counsel for the Company, shall have furnished to
you their written opinion, dated the Time of Delivery for the Securities, in
form and substance reasonably satisfactory to you, to the effect that:

                         (i)  The Company is validly existing as a
corporation in good standing under the laws of the State of Delaware, with
corporate power and authority to own its 

                                      -9-
<PAGE>   11

properties and conduct its business as described in the Final Prospectus as
amended and supplemented;

                        (ii) This Agreement has been duly authorized,
executed and delivered by the Company;

                       (iii) The Securities have been duly authorized, and
(assuming their due authentication by the Trustee) have been duly executed,
issued and delivered and constitute valid and legally binding obligations of the
Company entitled to the benefits provided by the Indenture and the Securities
and the Indenture conform in all material respects to the descriptions thereof
in the Final Prospectus as amended or supplemented;

                        (iv) The Indenture has been duly qualified under the
Trust Indenture Act and has been duly authorized, executed and delivered by the
Company, and constitutes a valid and legally binding instrument, enforceable in
accordance with its terms, subject, as to enforcement, to bankruptcy,
insolvency, reorganization and other laws of general applicability relating
to or affecting creditors' rights and to general equity
principles;

                         (v)  The Registration Statement and the Final
Prospectus as amended or supplemented and any further amendments thereto made by
the Company prior to such Time of Delivery for the Securities (in each case
other than with respect to the financial statements, financial, accounting and
statistical data and related schedules incorporated by reference or included
therein or excluded therefrom, or the exhibits to the Registration Statement
including the Form T-1, as to which such counsel need express no opinion or
belief), appear on their face to be appropriately responsive in all material
respects to the requirements of the Act and the Trust Indenture Act and the
applicable rules and regulations of the Commission thereunder; provided that,
such counsel shall not be deemed to be passing upon and shall not be required to
assume any responsibility for the accuracy, completeness or fairness of the
statements contained in the Registration Statement and Final Prospectus;

                        (vi) As such counsel, such counsel reviewed the
Registration Statement and Final Prospectus as amended or 

                                      -10
<PAGE>   12

supplemented, participated in discussions with representatives of the
Underwriters and of the Company and its accountants at which contents of the
Registration Statement and Final Prospectus as amended or supplemented and
related matters were discussed; on the basis of the information that such
counsel gained in the course of the performance of their services referred to
above, although such counsel shall not be deemed to be passing upon and shall
not assume any responsibility for, the accuracy, completeness or fairness of the
statements contained in the Registration Statement or the Final Prospectuses and
not be required to have made an independent check or verification thereof
(except as described in paragraph (ii) hereof), on the basis of the foregoing,
no facts have come to the attention of such counsel in the course of such review
which have led such counsel to believe that, as of its effective date, the
Registration Statement or any further amendment thereto made by the Company
prior to the Time of Delivery (other than the financial statements and the
financial, accounting and statistical data and related schedules incorporated by
reference or included therein or excluded therefrom, or the exhibits to the
Registration Statement including the Form T-1, as to which such counsel need
express no opinion) contained an untrue statement of a material fact or omitted
to state a material fact required to be stated therein or necessary to make the
statements therein not misleading or that, as of its date or the Time of
Delivery, the Final Prospectus as amended or supplemented or any further
amendment or supplement thereto made by the Company prior to the Time of
Delivery (other than the financial statements and financial, accounting and
statistical data and related schedules incorporated by reference or included
therein or excluded therefrom, or the exhibits to the Registration Statement
including the Form T-1, as to which such counsel need express no opinion)
contained an untrue statement of a material fact or omitted to state a material
fact necessary to make the statements therein, in light of the circumstances
under which they were made not misleading; and

                       (vii)  the Company is not an "investment company" or
an entity "controlled" by an "investment company," as such terms are defined in
the Investment Company Act of 1940, as amended.

                                      -11-
<PAGE>   13

         (c) Robert W. Pike, Vice President, Secretary and General Counsel of
the Company, shall have furnished to you his written opinion, dated the Time of
Delivery, in form and substance reasonably satisfactory to you, to the effect
that:

             (i) Each of Allstate Insurance Company ("AIC") and Allstate Life
Insurance Company ("ALIC") has been duly incorporated and is validly existing as
an insurance corporation under the laws of the State of Illinois, with corporate
power and authority to own its properties and conduct its business as described
in the Final Prospectus as amended or supplemented;

             (ii) All of the issued shares of capital stock of each Principal
Subsidiary have been duly and validly authorized and issued, are fully paid and
nonassessable, and are owned of record directly or indirectly by the Company,
AIC or ALIC, as the case may be (such counsel being entitled to rely in respect
of the opinion in this clause (ii) upon opinions of local or in-house counsel
and in respect of matters of fact upon certificates of officers of the Company
or its subsidiaries, provided that such counsel shall state that he believes
that both you and he are justified in relying upon such opinions and
certificates);

             (iii) Each Principal Subsidiary is duly licensed or authorized as
an insurer or reinsurer in each other jurisdiction where it is required to be so
licensed, except where the failure to be so licensed or authorized in any such
jurisdiction does not have a material adverse effect on the financial condition,
business or properties of the Company and its subsidiaries considered as a
whole; the Company and each Principal Subsidiary have made all required filings
under applicable insurance holding company statutes, and each is duly licensed
or authorized as an insurance holding company in each jurisdiction where it is
required to be so licensed, except where the failure to have made such filings
or to be so licensed or authorized in any such jurisdiction does not have a
material adverse effect on the financial condition, business or properties of
the Company and its subsidiaries considered as a whole; the Company and each
Principal Subsidiary have all necessary authorizations, approvals, orders,
consents, registrations or qualifications of and from all insurance regulatory
authorities to conduct their respective businesses as described in the Final
Prospectus as


                                      -12-
<PAGE>   14

amended or supplemented, except where the failure to have such authorizations,
approvals, orders, consents, registrations or qualifications does not have a
material adverse effect on the financial condition, business or properties of
the Company and its subsidiaries considered as a whole; and none of the Company
or any Principal Subsidiary has received any notification from any insurance
regulatory authority to the effect that any additional authorization, approval,
order, consent, registration or qualification from such insurance regulatory
authority is needed to be obtained by any of the Company or any Principal
Subsidiary in any case where it could be reasonably expected that (x) the
Company or any Principal Subsidiary would in fact be required either to obtain
any such additional authorization, approval, order, consent, registration or
qualification or cease or otherwise limit writing certain business and (y)
obtaining such authorization, approval, order, consent, license, certificate,
permit, registration or qualification or limiting such business would have a
material adverse effect on the business, financial position or results of
operations of the Company and its subsidiaries, considered as a whole (such
counsel being entitled to rely in respect of the opinion in this clause upon
opinions of local or in-house counsel and in respect of matters of fact upon
certificates of officers of the Company or its subsidiaries, provided that such
counsel shall state that he believes that both you and he are justified in
relying upon such opinions and certificates);

             (iv) To the best of such counsel's knowledge, each Principal
Subsidiary is in compliance with the requirements of the insurance laws and
regulations of its state of incorporation and the insurance laws and regulations
of other jurisdictions which are applicable to such Principal Subsidiary, and
has filed all notices, reports, documents or other information required to be
filed thereunder, or is subject to no material liability or disability by reason
of the failure to so comply or file (such counsel being entitled to rely in
respect of this clause upon opinions of local or in-house counsel and in respect
of matters of fact upon certificates of officers of the Company or its
subsidiaries, provided that such counsel shall state that he believes that both
you and he are justified in relying upon such opinions and certificates);
                                      -13-


<PAGE>   15

             (v) To the best of such counsel's knowledge and other than as set
forth in the Final Prospectus as amended or supplemented, there are no legal or
governmental proceedings pending to which the Company or any of its subsidiaries
is a party or to which any property of the Company or any of its subsidiaries is
the subject which, if determined adversely to the Company or any of its
subsidiaries, individually or in the aggregate, could reasonably be expected to
have a material adverse effect on the financial condition, business or
properties of the Company and its subsidiaries considered as a whole; and, to
the best of such counsel's knowledge, no such proceedings are threatened;

             (vi) The issuance and sale of the Securities and the performance by
the Company of its obligations under the Indenture, the Securities or this
Agreement and the consummation by the Company of the transactions contemplated
therein and herein will not conflict with or result in a breach of any of the
terms or provisions of, or constitute a default under, any indenture, mortgage,
deed of trust, loan agreement or other material agreement or instrument relating
to the Company or any of its subsidiaries, as such agreements or instruments
have been amended (which indentures, mortgages, deeds of trust, loan agreements
or other agreements or instruments may be specified by such counsel on a
schedule attached to his opinion); nor will any such action result in any
violation of the provisions of the Certificate or the By-Laws or any applicable
United States law or statute or any order, rule or regulation of any United
States court or governmental agency or body having jurisdiction over the
Company, its subsidiaries or any of their respective properties, provided, that
the foregoing opinion is limited to those statutes, laws, rules and regulations
of the United States of America, the State of Delaware and the State of
Illinois, in each case, which, in the opinion of such counsel, are normally
applicable to transactions of the type contemplated by this Agreement, and
provided further, that no opinion need be given with respect to (A) the Act, the
Exchange Act, the Trust Indenture Act, the rules and regulations issued pursuant
to each such act, any order, rule or regulation made or established by any
insurance official or regulatory authority or the National Association of
Securities Dealers, Inc., or state securities or Blue Sky laws in connection
with the purchase and distribution of 


                                      -14-
<PAGE>   16

the Securities by the Underwriters or (B) conflicts, breaches or violations
which individually and in the aggregate both would not have a material adverse
effect on the financial condition, business or operations of the Company and its
subsidiaries taken as a whole and would not have a material adverse effect on
the sale or ownership of the Securities (such counsel being entitled to rely in
respect of the opinion in this clause (vi) upon opinions of local or in-house
counsel and in respect of matters of fact upon certificates of officers of the
Company or its subsidiaries, provided that such counsel shall state that he
believes that both you and he are justified in relying upon such
opinions and certificates);

            (vii) No consent, approval, authorization, order, registration or
qualification of or with any United States court or governmental agency or body
is required for the issue and sale of the Securities by the Company or the
consummation by the Company of the transactions contemplated by this Agreement,
except that such counsel need not express any opinion with respect to such
consents, approvals, authorizations, orders, registrations or qualifications (A)
as may be required under the Act, the Exchange Act, the Trust Indenture Act, the
rules and regulations issued pursuant to each such act, any order, rule or
regulation made or established by any insurance official or regulatory authority
or the National Association of Securities Dealers, Inc., or (B) as may be
required under state securities or Blue Sky laws in connection with the purchase
and distribution of the Securities by the Underwriters, (C) the absence of which
individually or in the aggregate both are not material to the Company and its
subsidiaries taken as a whole and would not have a material adverse effect on
the sale or ownership of the Securities or (D) as may be required under foreign
laws in connection with the purchase and distribution of the Securities by any
international managers; provided, that the foregoing opinion is limited to those
consents, approvals, authorizations, orders, registrations and qualifications
under laws which, in the experience of such counsel, are normally applicable to
transactions of the type contemplated by this Agreement;

             (viii) To the best of such counsel's knowledge, the Company and its
subsidiaries, as applicable, have filed all notices, reports, documents or other
information required to be 

                                      -15-
<PAGE>   17

filed pursuant to, and have obtained all authorizations, approvals, orders,
consents, registrations or qualifications required to be obtained under, and
have otherwise complied with all requirements of, all applicable insurance laws
and regulations known to such counsel to be normally applicable to the
transactions contemplated by this Agreement in connection with the issuance and
sale by the Company of the Securities and, except as have been obtained pursuant
to the foregoing clause, no filing, authorization, approval, order, consent,
registration or qualification of or with any insurance regulatory agency having
jurisdiction over the Company or any of its subsidiaries or any of their
properties known to such counsel to be normally applicable to the transactions
contemplated by this Agreement or the Indenture is required for the issue and
sale of the Securities or the consummation by the Company of the transactions
contemplated by this Agreement, except such filings, authorizations, approvals,
orders, consents, registrations or qualifications which (individually or in the
aggregate) the failure to make, obtain or comply with would not have a material
adverse effect on the financial condition, business or properties of the Company
and its subsidiaries considered as a whole;

           (ix) As general counsel to the Company, such counsel reviewed the
Registration Statement and Final Prospectus as amended or supplemented,
participated in various discussions with representatives of the Underwriters and
of the Company and its accountants at which contents of the Registration
Statement and Final Prospectus as amended or supplemented were discussed; on the
basis of the information that such counsel gained in the course of his
activities referred to above, such counsel confirms that the Registration
Statement, as of its effective date, and the Final Prospectus, as amended or
supplemented (in each case other than with respect to the financial statements,
financial and accounting data and related schedules therein, as to which such
counsel need express no opinion or belief), appear on their face to be
appropriately responsive in all material respects to the requirements of the Act
and the applicable rules and regulations of the Commission thereunder; and,
although such counsel is not passing upon and does not assume any responsibility
for the accuracy, completeness or fairness of the statements contained in the
Registration Statement and Final Prospectus as amended or supplemented (except
as expressly set 

                                      -16-

<PAGE>   18

forth in such opinion), on the basis of the foregoing, no facts
have come to the attention of such counsel in the course of such review which
has caused such counsel to believe that, as of its effective date, the
Registration Statement or any further amendment thereto made by the Company
prior to such Time of Delivery (other than the financial statements and
financial and accounting data and related schedules therein and other than
information under the captions "Description of Debt Securities," "Description of
Debt Warrants," "Description of Preferred Stock," "Description of Preferred
Securities," "Description of Preferred Securities Guarantees" and "Plan of
Distribution" in the Basic Prospectus and under the captions "Description of the
Bonds" and "Underwriters" contained in the Final Prospectus as amended or
supplemented, as to which such counsel need express no opinion) contained an
untrue statement of a material fact or omitted to state a material fact required
to be stated therein or necessary to make the statement therein not misleading
or that, as of its date, the Final Prospectus as amended or supplemented or any
further amendment or supplement thereto made by the Company prior to such Time
9of Delivery (other than the financial statements and financial and accounting
data and related schedules therein and other than information under the captions
"Description of Debt Securities," "Description of Debt Warrants," "Description
of Preferred Stock," "Description of Preferred Securities," "Description of
Preferred Securities Guarantees" and "Plan of Distribution" in the Basic

                                      -17-

<PAGE>   19

Prospectus and under the captions Description of the Bonds" and "Underwriters"
contained in the Final Prospectus as amended or supplemented, as to which such
counsel need express no opinion) contained an untrue statement of a material
fact or omitted to state a material fact required to be stated therein or
necessary to make the statement therein not misleading or that, as of the Time
of Delivery, either the Registration Statement or the Final Prospectus as
amended or supplemented or any further amendment or supplement (when considered
together with the document to which such supplement relates) thereto made by the
Company prior to such Time of Delivery (other than the financial statements and
financial and accounting data and related schedules therein and other than
information under the captions "Description of Debt Securities," "Description of
Debt Warrants," "Description of Preferred Stock," "Description of Preferred
Securities," "Description of Preferred Securities Guarantees" and "Plan of
Distribution" in the Basic Prospectus and under the captions "Description of the
Bonds" and "Underwriters" contained in the Final Prospectus as amended or
supplemented, as to which such counsel need express no opinion) contains an
untrue statement of a material fact or omits to state a material fact necessary
to make the statements therein, in the light of the circumstances under which
they were made, not misleading; and he does not know of any amendment to the
Registration Statement required to be filed or of any contracts or other
documents of a character required to be filed as an exhibit to the Registration
Statement or required to be incorporated by reference into the Final Prospectus
as amended or supplemented or required to be described in the Registration
Statement or the Final Prospectus as amended or supplemented which are not filed
or described as required, in each case, other than with respect to the
information under the captions "Description of Debt Securities," "Description of
Debt Warrants," "Description of Preferred Stock," "Description of Preferred
Securities," "Description of Preferred Securities Guarantees" and "Plan of
Distribution" in the Basic Prospectus and under the captions "Description of the
Bonds" and "Underwriters" contained in the Final Prospectus as amended or
supplemented; and

             (x) On the basis of the information that such counsel gained in the
course of the review referred to in paragraph (ix) above (but without passing
upon or assuming any responsibility for the accuracy, completeness or fairness
of the statements contained in the documents described below), such counsel
confirms that no facts have come to the attention of such counsel in the course
of such review which have caused such counsel to believe that the documents
incorporated by reference in the Final Prospectus as amended or supplemented
(other than the financial statements and financial, accounting and statistical
data and related schedules therein or excluded therefrom, as to which such
counsel need express no opinion), when they became effective or
were filed with the Commission, as the case may be, did not comply as to form in
all material respects with the requirements of the Act or the Exchange Act, as
applicable, and the rules and regulations of the Commission thereunder; and he
has no reason to believe that any of such documents, when they became effective
or were so filed, as the case may be, contained, in the case of a registration
statement which became effective under the Act, an untrue statement of a
material fact or omitted to state a 

                                      -18-

<PAGE>   20

material fact required to be stated therein or necessary to make the statements
therein not misleading or, in the case of other documents that were filed under
the Act or the Exchange Act with the Commission, an untrue statement of a
material fact or omitted to state a material fact necessary to make the
statements therein, in light of the circumstances under which they were made not
misleading.

         (d) LeBoeuf, Lamb, Greene & MacRae, L.L.P., special counsel to the
Underwriters, shall have furnished to you their written opinion, dated the Time
of Delivery, in form and substance reasonably satisfactory to you, covering the
matters referred to in subparagraphs (ii), (iii), (iv) and (vi) of paragraph (b)
above.

         (e) On the date hereof and the Time of Delivery of the Securities,
Deloitte & Touche shall have furnished to the Representatives a letter, dated
the effective date of the Registration Statement or, if more recently filed, the
most recent report filed with the Commission containing financial statements and
incorporated by reference in the Registration Statement if the date of such
report is later than such effective date, and a letter dated such Time of
Delivery, respectively, to the effect set forth in Schedule II hereto, and with
respect to such letter dated such Time of Delivery, in form and substance
satisfactory to the Representatives.

         (f) (i) Neither the Company nor any of its subsidiaries shall have
sustained since the date of the latest audited

                                      -19-



<PAGE>   21
financial statements included or incorporated by reference in the Final
Prospectus as amended or supplemented any material adverse change in the
financial condition, business or properties of the Company and its subsidiaries
considered as a whole, otherwise than as set forth or contemplated in the Final
Prospectus as amended or supplemented (and other than a catastrophe not meeting
the threshold contemplated by (w) below), and (ii) since the respective dates as
of which information is given in the Final Prospectus as amended or supplemented
there shall not have been (w) any catastrophe or any impending catastrophe
which, in the Company's judgment, is highly probable to result in gross
underwriting losses in excess of $500 million pursuant to insurance coverage
written by the Company's subsidiaries, (x) any material addition, or any
development involving a prospective material addition, to either the Company's
consolidated reserve for property-liability insurance claims and claims expense
or the Company's consolidated reserve for life insurance policy benefits or (y)
any material increase in the consolidated long-term debt of the Company.

         (g) On or after the date hereof, (i) no downgrading shall have occurred
in the rating accorded the Company's debt securities or financial strength or
claims paying ability by any of Moody's Investor Services, Inc., Standard &
Poor's Corporation or A.M. Best & Co. and (ii) no such organization shall have
publicly announced that it has under surveillance or review, with possible
negative implications, its rating of any of the Company's debt securities or
financial strength or claims paying ability, the effect of which, in any such
case described in clause (i) or (ii), is in your judgment (after consultation
with the Company) so material and adverse as to make it impracticable or
inadvisable to proceed with the public offering or the delivery of the
Securities on the terms and in the manner contemplated in the Final Prospectus
as amended or supplemented;

         (h) On or after the date hereof, there shall not have occurred any of
the following: (i) a suspension or material limitation in trading in securities
generally on the New York Stock Exchange; (ii) a general moratorium on
commercial banking activities in New York declared by either Federal or New York
State authorities; or (iii) the material outbreak or escalation of hostilities
involving the United States or the declaration by 

                                      -20-

<PAGE>   22
the United States of a national emergency or war, if the effect of any such
event specified in this clause (iii) in the judgment of the Representatives
makes it impracticable or inadvisable to proceed with the public offering or the
delivery of the Securities on the terms and in the manner contemplated by the
Final Prospectus as amended or supplemented;

         (i) On or after the date hereof, there shall not have occurred any
change in financial markets or any calamity or crisis that, in the mutual
judgment of both the Company and the Representatives, makes it impractical to
market the Securities on the terms and in the manner contemplated in the Final
Prospectus as amended or supplemented; and

         (j) The Company shall have furnished or caused to be furnished to the
Representatives at the Time of Delivery certificates of officers of the Company
reasonably satisfactory to the Representatives as to the accuracy of the
representations and warranties of the Company herein at and as of the Time of
Delivery, as to the performance by the Company of all of its obligations
hereunder to be performed at or prior to the Time of Delivery, as to the matters
set forth in subsections (a) and (e) of this Section and as to such other
matters as the Representatives may reasonably request.

         7. (a) Indemnification and Contribution. The Company will indemnify and
hold harmless each Underwriter against any losses, claims, damages or
liabilities, joint or several, to which such Underwriter may become subject,
under the Act or otherwise, insofar as such losses, claims, damages or
liabilities (or actions in respect thereof) arise out of or are based upon an
untrue statement or alleged untrue statement of a material fact contained in any
Preliminary Final Prospectus, the Registration Statement, the Final Prospectus,
the Final Prospectus as amended or supplemented and any other prospectus
relating to the Securities, or any amendment or supplement (when considered
together with the document to which such supplement relates) thereto, or arise
out of or are based upon the omission or alleged omission to state therein a
material fact required to be stated therein or necessary to make the statements
therein not misleading, and will reimburse each Underwriter for any legal or
other expenses reasonably incurred by such Underwriter in 

                                      -21-
<PAGE>   23

connection with investigating or defending any such action or claim as such
expenses are incurred; provided, however, that the Company shall not be liable
in any such case to the extent that any such loss, claim, damage or liability
arises out of or is based upon an untrue statement or alleged untrue statement
or omission or alleged omission made in any Preliminary Final Prospectus, the
Registration Statement, the Final Prospectus as amended or supplemented and any
other prospectus relating to the Securities, or any such amendment or supplement
in reliance upon and in conformity with written information furnished to the
Company by any Underwriter through the Representatives expressly for use in the
Final Prospectus as amended or supplemented relating to the Securities and,
provided, further, that the Company shall not be liable to any Underwriter under
the indemnity agreement in this subsection (a) with respect to any Preliminary
Final Prospectus, the Final Prospectus or the Final Prospectus as amended or
supplemented, as the case may be, to the extent that any such loss, claim,
damage or liability of such Underwriter results from the fact such Underwriter
sold the Securities to a person to whom there was not sent or given, at or prior
to the written confirmation of such sale, a copy of the Final Prospectus or of
the Final Prospectus as then amended or supplemented, whichever is most recent,
in any case where such delivery is required by the Act if the Company had
previously furnished copies thereof to such Underwriter and the loss, claim,
damage or liability of such Underwriter results from an untrue statement or
omission of a material fact contained in the Preliminary Final Prospectus which
was corrected in the Final Prospectus (or the Final Prospectus as amended or
supplemented).

         (b) Each Underwriter will indemnify and hold harmless the Company
against any losses, claims, damages or liabilities to which the Company may
become subject, under the Act or otherwise, insofar as such losses, claims,
damages or liabilities (or actions in respect thereof) arise out of or are based
upon an untrue statement or alleged untrue statement of a material fact
contained in any Preliminary Final Prospectus, the Registration Statement, the
Final Prospectus, the Final Prospectus as amended or supplemented and any other
prospectus relating to the Securities, or any amendment or supplement (when
considered together with the document to which such supplement relates) thereto,
or arise out of or are based upon the omission or 

                                      -22-
<PAGE>   24

alleged omission to state therein a material fact required to be stated therein
or necessary to make the statements therein not misleading, in each case to the
extent, but only to the extent, that such untrue statement or alleged untrue
statement or omission or alleged omission was made in any Preliminary Final
Prospectus, the Registration Statement, the Final Prospectus as amended or
supplemented and any other prospectus relating to the Securities, or any such
amendment or supplement in reliance upon and in conformity with written
information furnished to the Company by such Underwriter through the
Representatives expressly for use therein; and will reimburse the Company for
any legal or other expenses reasonably incurred by the Company in connection
with investigating or defending any such action or claim as such expenses are
incurred.

         (c) Promptly after receipt by an indemnified party under subsection (a)
or (b) above of notice of the commencement of any action, such indemnified party
shall, if a claim in respect thereof is to be made against the indemnifying
party under such subsection, notify the indemnifying party in writing of the
commencement thereof; but the omission so to notify the indemnifying party shall
not relieve it from any liability which it may have to any indemnified party
otherwise than under such subsection. In case any such action shall be brought
against any indemnified party and it shall notify the indemnifying party of the
commencement thereof, the indemnifying party shall be entitled to participate
therein and, to the extent that it shall wish, jointly, with any other
indemnifying party similarly notified, to assume the defense thereof, with
counsel reasonably satisfactory to such indemnified party (who shall not, except
with the consent of the indemnified party, be counsel to the indemnifying party
and who may act in respect of actions involving more than one indemnified
party), and, after notice from the indemnifying party to such indemnified party
of its election so to assume the defense thereof, the indemnifying party shall
not be liable to such indemnified party under such subsection for any legal
expenses of other counsel or any other expenses, in each case subsequently
incurred by such indemnified party, in connection with the defense thereof other
than reasonable costs of investigation. Notwithstanding anything to the contrary
in this Section 7, an indemnifying party shall only be liable for the legal fees
and expenses of one national counsel

                                      -23-

<PAGE>   25

and appropriate local counsel for the indemnified parties with respect to any
proceeding or related proceedings and in connection with any one such action,
suit or proceeding or separate but substantially similar or related actions,
suits or proceedings in the same jurisdiction arising out of the same general
allegations or circumstances, be liable for the reasonable fees and expenses of
only one separate firm of attorneys (in addition to any local counsel) at any
time for all such Underwriters and controlling persons not having actual or
potential differing interests with you or among themselves, which firm shall be
designated in writing by Morgan Stanley & Co. Incorporated.

         (d) If the indemnification provided for in this Section 7 is
unavailable to or insufficient to hold harmless an indemnified party under
subsection (a) or (b) above in respect of any losses, claims, damages or
liabilities (or actions in respect thereof) referred to therein, then each
indemnifying party shall contribute to the amount paid or payable by such
indemnified party as a result of such losses, claims, damages or liabilities (or
actions in respect thereof) in such proportion as is appropriate to reflect the
relative benefits received by the Company on the one hand and the Underwriters
on the other from the offering of the Securities. If, however, the allocation
provided by the immediately preceding sentence is not permitted by applicable
law, or if the indemnified party failed to give the notice required under
subsection (c) above, then each indemnifying party shall contribute to such
amount paid or payable by such indemnified party in such proportion as is
appropriate to reflect not only such relative benefits but also the relative
fault of the Company on the one hand and the
Underwriters on the other in connection with the statements or omissions which
resulted in such losses, claims, damages or liabilities (or actions in respect
thereof), as well as any other relevant equitable consideration. The relative
benefits received by the Company on the one hand and the Underwriters on the
other shall be deemed to be in the same proportion as the total net proceeds
from such offering (before deducting expenses) received by the Company bear to
the total underwriting discounts and commissions received by such Underwriters,
in each case as set forth in the table on the cover page of the Final
Prospectus. The relative fault shall be determined by reference to, among 

                                      -24-
<PAGE>   26

other things, whether the untrue or alleged untrue statement of a material fact
or the omission or alleged omission to state a material fact relates to
information supplied by the Company on the one hand or the Underwriters on the
other and the parties' relative intent, knowledge, access to information and
opportunity to correct or prevent such statement or omission. With respect to
any Underwriter, such relative fault shall also be determined by reference to
the extent (if any) to which such losses, claims, damages or liabilities (or
actions in respect thereof) with respect to any Preliminary Final Prospectus
result from the fact that such Underwriter sold the Securities to a person to
whom there was not sent or given, at or prior to the written confirmation of
such sale, a copy of the Final Prospectus or of the Final Prospectus as then
amended or supplemented, if the Company had previously furnished copies thereof
to such Underwriter. The Company and the Underwriters agree that it would not be
just and equitable if contributions pursuant to this subsection (d) were
determined by pro rata allocation (even if the Underwriters were treated as one
entity for such purpose) or by any other method of allocation which does not
take account of the equitable considerations referred to above in this
subsection (d). The amount paid or payable by an indemnified party as a result
of the losses, claims, damages or liabilities (or actions in respect thereof)
referred to above in this subsection (d) shall be deemed to include any legal or
other expenses reasonably incurred by such indemnified party in connection with
investigating or defending any such action or claim. Notwithstanding the
provisions of this subsection (d), no Underwriter shall be required to
contribute any amount in excess of the amount by which the total price at which
the applicable Securities underwritten by it and distributed to the public were
offered to the public exceeds the amount of any damages which such Underwriter
has otherwise been required to pay by reason of such untrue or alleged untrue
statement or omission or alleged omission. No person guilty of fraudulent
misrepresentation (within the meaning of Section 11(f) of the Act) shall be
entitled to contribution from any person who was not guilty of such fraudulent
misrepresentation. The obligations of the Underwriters in this subsection (d) to
contribute are several in proportion to their respective underwriting 
obligations with respect to the Securities and not joint.

                                      -25-
<PAGE>   27

         (e) The obligations of the Company under this Section 7 shall be in
addition to any liability which the Company may otherwise have and shall extend
upon the same terms and conditions, to each person, if any, who controls any
Underwriters within the meaning of the Act; and the obligations of the
Underwriters under this Section 7 shall be in addition to any liability which
the respective Underwriters may otherwise have and shall extend, upon the same
terms and conditions, to each officer and director of the Company (including any
person who, with his consent, is named in the Registration Statement as about to
become a director of the Company) and to each person, if any, who controls the
Company within the meaning of the Act.

         8. Default; Termination. (a) If, at the Time of Delivery, any one or
more of the Underwriters shall fail or refuse to purchase Securities that it or
they have agreed to purchase hereunder on such date, and the aggregate principal
amount of Securities which such defaulting Underwriter or Underwriters agreed
but failed or refused to purchase is not more than one-tenth of the aggregate
principal amount of the Securities to be purchased on such date, the other
Underwriters shall be obligated severally in the proportions that the principal
amount of Securities set forth opposite their respective names in Schedule I
bears to the principal amount of Securities set forth opposite the names of all
such non-defaulting Underwriters, or in such other proportions as you may
specify, to purchase the Securities which such defaulting Underwriter or
Underwriters agreed but failed or refused to purchase on such date; provided
that in no event shall the principal amount of Securities that any Underwriter
has agreed to purchase pursuant to Section 2 be increased pursuant to this
Section 8 by an amount in excess of one-ninth of such principal amount of
Securities without the written consent of such Underwriter. If, at the Time of
Delivery any Underwriter or Underwriters shall fail or refuse to purchase
Securities and the aggregate principal amount of Securities with respect to
which such default occurs is more than one-tenth of the aggregate principal
amount of Securities to be purchased on such date, and arrangements satisfactory
to you and the Company for the purchase of such Securities are not made within
36 hours after such default, this Agreement shall terminate without liability on
the part of any non-defaulting Underwriter or the Company. In any 

                                      -26-

<PAGE>   28

such case either you or the Company shall have the right to postpone the Time of
Delivery but in no event for longer than seven days, in order that the required
changes, if any, in the Registration Statement and in the Final Prospectus or in
any other documents or arrangements may be effected. Any action taken under this
paragraph shall not relieve any defaulting Underwriter from liability in respect
of any default of such Underwriter under this Agreement.

         (b) If this Agreement shall be terminated by the Underwriters, or any
of them, because of any failure or refusal on the part of the Company to comply
with the terms or to fulfill any of the conditions of this Agreement, or if for
any reason the Company shall be unable to perform its obligations under this
Agreement, the Company will reimburse the Underwriters or such Underwriters as
have so terminated this Agreement with respect to themselves, severally, for all
out-of-pocket expenses (including the fees and disbursements of their counsel)
reasonably incurred by such Underwriters in connection with this Agreement or
the offering contemplated hereunder.

         9. Survival. The respective indemnities, agreements, representations,
warranties and other statements of the Company and the several Underwriters, as
set forth in this Agreement or made by or on behalf of them, respectively,
pursuant to this Agreement, shall remain in full force and effect, regardless of
any investigation (or any statement as to the results thereof) made by or on
behalf of any Underwriter, or the Company or any officer or director or
controlling person of the Company and shall survive delivery of and payment for
the Securities.

         10. Reliance Upon Representatives. In all dealings hereunder, the
Representatives shall act on behalf of the Underwriters and the parties hereto
shall be entitled to act and rely upon any statement, request, notice or
agreement on behalf of any Underwriter made or given by such of the
Representatives, if any, as may be designated for such purpose by Morgan Stanley
& Co. Incorporated.

         11. Notices. All statements, requests, notices and agreements hereunder
shall be in writing, and if to the Underwriters shall be delivered or sent by
mail, telex or 

                                      -27-

<PAGE>   29

facsimile transmission to such Underwriters in the care of Morgan Stanley & Co.
Incorporated, 1585 Broadway, New York, NY 10036, Fax (212) 761-0783, Attention:
Michael Fusco; if to the Company, shall be delivered or sent by mail, telex or
facsimile transmission to the address of the Company set forth in the
Registration Statement, Attention: Secretary; provided, however, that any notice
to an Underwriter pursuant to Section 7(c) hereof shall be delivered or sent by
mail, telex or facsimile transmission to such Underwriter at its address set
forth in its Underwriters' Questionnaire, or telex constituting such
Questionnaire. Any such statements, requests, notices or agreements shall take
effect at the time of receipt thereof.

         12. Successors and Assigns. This Agreement shall be binding upon, and
inure solely to the benefit of, the Underwriters, the Company, and, to the
extent provided in Sections 7 and 8 hereof, the officers and directors of the
Company and each person who controls the Company or any Underwriter, and their
respective heirs, executors, administrators, successors and assigns, and no
other person shall acquire or have any right under or by virtue of this
Agreement. No purchaser of any of the Securities from any Underwriter shall be
deemed a successor or assign by reason merely of such purchase.

         13.      "Business Day."  As used herein, the term "business
day" shall mean any day when the Commission's office in
Washington, D.C. is open for business.

         14.      GOVERNING LAW.  THIS AGREEMENT AND EACH PRICING
AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH
THE INTERNAL LAWS OF THE STATE OF NEW YORK.

         15. Counterparts. This Agreement may be executed by any one or more of
the parties hereto and thereto in any number of counterparts, each of which
shall be deemed to be an original, but all such counterparts shall together
constitute one and the same instrument.



                                      -28-



<PAGE>   30



                  If the foregoing is in accordance with your understanding,
please sign and return to us seven counterparts hereof.

                                         Very truly yours,

                                         THE ALLSTATE CORPORATION


                                         By:  ________________________
                                              Name:
                                              Title:


Accepted as of the date hereof:


MORGAN STANLEY & CO.
  INCORPORATED
GOLDMAN, SACHS & CO.
MERRILL LYNCH, PIERCE,
  FENNER & SMITH INCORPORATED
NATIONSBANC MONTGOMERY
  SECURITIES, INC.
PAINEWEBBER INCORPORATED
SALOMON BROTHERS INC

Acting on behalf of themselves 
  and the several Underwriters 
  named herein.

By MORGAN STANLEY & CO.
   INCORPORATED


By:  __________________________
         Name:
         Title:


                                      -29-



<PAGE>   31



                     SCHEDULE I TO UNDERWRITING AGREEMENT




                                                                      Principal
                                                                        Amount
Underwriters                                                           of Bonds
- ------------                                                           --------

Morgan Stanley & Co. Incorporated                                    $32,625,000
Goldman, Sachs & Co.                                                  32,625,000
Merrill Lynch, Pierce, Fenner & Smith Incorporated                    32,625,000
NationsBanc Montgomery Securities, Inc.                               32,625,000
PaineWebber Incorporated                                              32,625,000
Salomon Brothers Inc                                                  32,625,000
BT Alex Brown Incorporated                                             1,875,000
CIBC Oppenheimer Corp.                                                 1,875,000
Donaldson, Lufkin & Jenrette Securities Corporation                    1,875,000
A.G. Edwards & Sons, Inc.                                              1,875,000
EVEREN Securities, Inc.                                                1,875,000
Fox-Pitt, Kelton Inc.                                                  1,875,000
Legg Mason Wood Walker, Incorporated                                   1,875,000
Lehman Brothers Inc.                                                   1,875,000
J.P. Morgan Securities Inc.                                            1,875,000
Olde Discount Corporation                                              1,875,000
SBC Warburg Dillon Reed Inc.                                           1,875,000
Tucker Anthony Incorporated                                            1,875,000
US Clearing Corp.                                                      1,875,000
Wheat, First Securities, Inc.                                          1,875,000
Advest, Inc.                                                             875,000
Robert W. Baird & Co. Incorporated                                       875,000
Blaylock & Partners, L.P.                                                875,000
J.C. Bradford & Co.                                                      875,000
Commerzbank Capital Markets Corporation                                  875,000
Cowen & Company                                                          875,000
Crowell, Weeden & Co.                                                    875,000
Dain Bosworth Incorporated                                               875,000
Fahnestock & Co. Inc.                                                    875,000
First Albany Corporation                                                 875,000
J.J.B. Hilliard, W.L. Lyons, Inc.                                        875,000
Interstate/Johnson Lane Corporation                                      875,000
Janney Montgomery Scott Inc.                                             875,000
Kennedy, Chabot Inc.                                                     875,000
McDonald & Company Securities, Inc.                                      875,000
McGinn, Smith & Co., Inc.                                                875,000
Mesirow Financial, Inc.                                                  875,000
Morgan Keegan & Company, Inc.                                            875,000
The Ohio Company                                                         875,000
Piper Jaffray Inc.                                                       875,000





<PAGE>   32
                                                                       Principal
                                                                        Amount
Underwriters                                                           of Bonds
- ------------                                                           --------

Principal Financial Securities, Inc.                                     875,000
Rauscher Pierce Refsnes, Inc.                                            875,000
Raymond James & Associates, Inc.                                         875,000
Redwood Securities Group, Inc.                                           875,000
The Robinson-Humphrey Company, LLC                                       875,000
Roney & Co. L.L.C                                                        875,000
Muriel Siebert & Co., Inc.                                               875,000
Stephens Inc.                                                            875,000
Stifel, Nicolaus & Company, Incorporated                                 875,000
Sutro & Co. Incorporated                                                 875,000
Utendahl Capital Partners, L.P.                                          875,000
Wedbush Morgan Securities                                                875,000

                           Total...........................         $250,000,000
                                                                    ============







<PAGE>   33



                      SCHEDULE II TO UNDERWRITING AGREEMENT

                  Pursuant to Section 6(e) of the Underwriting Agreement, the
accountants shall furnish letters to the Underwriters to the effect that: (i)
They are independent certified public accountants with respect to the Company
and its subsidiaries within the meaning of the Act and the applicable published
rules and regulations thereunder; (ii) In their opinion, the financial
statements, certain summary and selected consolidated financial and operating
data, and any supplementary financial information and schedules (and, if
applicable, pro forma financial information) audited by them and included or
incorporated by reference in the Final Prospectus as amended or supplemented or
the Registration Statement comply as to form in all material respects with the
applicable accounting requirements of the Act and the related published rules
and regulations thereunder; and, if applicable, they have made a review in
accordance with standards established by the American Institute of Certified
Public Accountants of the unaudited consolidated interim financial statements,
and any supplementary financial information and schedules, selected financial
data, pro forma financial information, prospective financial statements and/or
condensed financial statements derived from audited financial statements of the
Company for the periods specified in such letter, and, as indicated in their
report thereon, copies of which have been furnished to representatives of the
Underwriters (the "Representatives"); (iii) On the basis of limited procedures,
not constituting an audit in accordance with generally accepted auditing
standards, consisting of a reading of the unaudited financial statements and
other information referred to below, a reading of the latest available interim
financial statements of the Company and its subsidiaries, inspection of the
minute books of the Company and its subsidiaries since the date of the latest
audited financial statements included or incorporated by reference in the Final
Prospectus as amended or supplemented, inquiries of officials of the Company and
its subsidiaries responsible for financial and accounting matters and such other
inquiries and procedures as may be specified in such letter, nothing came to
their attention that caused them to believe that:

                  (A) the unaudited consolidated statements of income,
consolidated balance sheets and consolidated statements of cash 

<PAGE>   34

flows and certain summary and selected consolidated financial and operating data
included or incorporated by reference in the Final Prospectus as amended or
supplemented do not comply as to form in all material respects with the
applicable accounting requirements of the Act and the related published rules
and regulations thereunder;

                  (B) any other unaudited income statement data and balance
sheet items included or incorporated by reference in the Final Prospectus as
amended or supplemented do not agree with the corresponding items in the
unaudited consolidated financial statements from which such data and items were
derived, and any such unaudited data and items were not determined on a basis
substantially consistent with the basis for the corresponding amounts in the
audited consolidated financial statements included or incorporated by reference
in the Final Prospectus as amended or supplemented;

                  (C) the unaudited financial statements which were not included
or incorporated by reference in the Final Prospectus as amended or supplemented
but from which were derived any unaudited condensed financial statements
referred to in Clause (A) and any unaudited income statement data and balance
sheet items included or incorporated by reference in the Final Prospectus as
amended or supplemented and referred to in Clause (B) were not determined on a
basis substantially consistent with the basis for the audited consolidated
financial statements included or incorporated by reference in the Final
Prospectus as amended or supplemented;

                  (D) any unaudited pro forma consolidated condensed financial
statements included or incorporated by reference in the Final Prospectus as
amended or supplemented do not comply as to form in all material respects with
the applicable accounting requirements of the Act and the published rules and
regulations thereunder or the pro forma adjustments have not been properly
applied to the historical amounts in the compilation of those statements.

                  (E) as of a specified date not more than five business days
prior to the date of such letter, there have been any changes in the
consolidated capital stock or any increase in the 

<PAGE>   35

consolidated borrowings or consolidated reserve for property-liability insurance
claims and claims expense or consolidated reserve for life insurance policy
benefits, or asset reserves of the Company and its subsidiaries, or any
decreases in consolidated fixed income securities available for sale,
consolidated equity securities, consolidated investments or shareholder equity,
or any decrease in AIC's or ALIC's statutory capital and surplus, or other items
specified by the Representatives, in each case as compared with amounts shown in
the latest balance sheet included or incorporated by reference in the Final
Prospectus as amended or supplemented, except in each case for changes,
increases or decreases which the Final Prospectus discloses have occurred or may
occur or which are described in such letter; and

                  (F) for the period from the date of the latest financial
statements included or incorporated by reference in the Final Prospectus as
amended or supplemented to the specified date referred to in Clause (E) there
were any decreases in consolidated premiums earned, consolidated net investment
income, or other items specified by the Representatives, or any increases in any
items specified by the Representatives, in each case as compared with the
comparable period of the preceding year and with any other period of
corresponding length specified by the Representatives, except in each case for
decreases or increases which the Final Prospectus discloses have occurred or may
occur or which are described in such letter; and (iv) In addition to the
examination referred to in their report(s) included or incorporated by reference
in the Final Prospectus as amended or supplemented and the limited procedures,
inspection of minute books, inquiries and other procedures referred to in
paragraphs (ii) and (iii) above, they have carried out certain procedures as
specified in their letter, not constituting an audit in accordance with
generally accepted auditing standards, with respect to certain amounts,
percentages and financial information specified by the Representatives, which
are derived from the general accounting records of the Company and its
subsidiaries, which appear or are incorporated by reference in the Final
Prospectus as amended or supplemented or in Part II of, or in exhibits and
schedules to, the Registration Statement specified by the Representatives, and
have compared certain of such specified amounts, percentages and financial
information with the 

<PAGE>   36

accounting records of the Company and its subsidiaries and have found them to be
in agreement.






<PAGE>   37



                     SCHEDULE III TO UNDERWRITING AGREEMENT



PRINCIPAL SUBSIDIARIES                            JURISDICTION OF INCORPORATION



Allstate Insurance Company                                             Illinois
Allstate Life Insurance Company                                        Illinois







<PAGE>   1
                                                                     EXHIBIT 4.1

                           (FORM OF FACE OF SECURITY)

                  This Security is a Global Security within the meaning of the
Indenture hereinafter referred to and is registered in the name of a Depositary
or a nominee of a Depositary. This Security is exchangeable for Securities
registered in the name of a person other than the Depositary or its nominee only
in the limited circumstances described in the Indenture, and no transfer of this
Security (other than a transfer of this Security as a whole by the Depositary to
a nominee of the Depositary or by a nominee of the Depositary to the Depositary
or another nominee of the Depositary) may be registered except in limited
circumstances.

                  Unless this Security is presented by an authorized
representative of The Depository Trust Company (55 Water Street, New York, New
York) to the issuer or its agent for registration of transfer, exchange or
payment, and any Security issued is registered in the name of Cede & Co. or such
other name as requested by an authorized representative of The Depository Trust
Company and any payment hereon is made to Cede & Co., ANY TRANSFER, PLEDGE OR
OTHER USE HEREOF FOR VALUE OR OTHERWISE BY A PERSON IS WRONGFUL since the
registered owner hereof, Cede & Co., has an interest herein.

Certificate No.                                                   $_____________
                                                            CUSIP No.  _________

                            THE ALLSTATE CORPORATION

                 7 1/8 % Senior Quarterly Interest Bonds due 2097

                  THE ALLSTATE CORPORATION, a Delaware corporation (the
"Company," which term includes any successor corporation under the Indenture
hereinafter referred to), for value received, hereby promises to pay to CEDE &
CO. or registered assigns, the principal sum of ____________ ($__________) on
December 15, 2097. The Company further promises to pay interest on said
principal sum outstanding from December 19, 1997, or from the most recent
interest payment date (each such date, an "Interest Payment Date") to which
interest has been paid or duly provided for, quarterly in arrears on March 15,
June 15, September 15 and December 15 of each year commencing March 15, 1998, at
the rate of 71/8 % per annum, until the principal hereof shall have become due
and payable and, until the principal hereof is paid or duly provided for or made
available for payment. If, however, a Tax Event (as defined below) occurs, the
Company shall have the right to shorten the maturity of this Security as
provided below. The amount of interest payable on any Interest Payment Date
shall be computed on the basis of a 360-day year of twelve 30-day months. The
amount of interest payable for any partial period shall be computed on the basis
of the number of actual days elapsed in a 360-day year of twelve 30-day months.
In the event that any date on which interest is payable on this Security is not
a Business Day, then payment of interest payable on such date will be made on
the next succeeding day that is a Business Day (and without any interest or
other payment in respect of any such delay). A "Business Day" shall mean any
day, other than a Saturday or Sunday, on which the banks in the City of New York
are not required by law to




<PAGE>   2
close. The interest installment so payable, and punctually paid or duly provided
for, on any Interest Payment Date will, as provided in the Indenture, be paid to
the Person in whose name this Security (or one or more Predecessor Securities)
is registered at the close of business on the 15th calendar day prior to such
Interest Payment Date (a "Regular Record Date"). Any such interest installment
not punctually paid or duly provided for shall forthwith cease to be payable to
the registered Holder on such Regular Record Date and may either be paid to the
Person in whose name this Security (or one or more Predecessor Securities) is
registered at the close of business on a Special Record Date to be fixed by the
Trustee for the payment of such Defaulted Interest, notice whereof shall be
given to the Holder of this Security not less than 10 days prior to such Special
Record Date, or be paid at any time in any other lawful manner not inconsistent
with the requirements of any securities exchange on which this Security may be
listed, and upon such notice as may be required by such exchange, all as more
fully provided in the Indenture.

                  The principal of (and premium, if any) and the interest on
this Security shall be payable at the office or agency of the Company maintained
for that purpose in the United States in such coin or currency of the United
States of America that at the time of payment is legal tender for payment of
public and private debts; provided, however, that payment of interest may be
made at the option of the Company by check mailed to the registered Holder at
such address as shall appear in the Security Register. Notwithstanding the
foregoing, so long as the Holder of this Security is The Depository Trust
Company (or its nominee, including, without limitation, Cede & Co.), the payment
of the principal of (and premium, if any) and interest on this Security will be
made at such place and to such account as may be designated by The Depository
Trust Company (or its nominee, including, without limitation, Cede & Co.). All
payments of principal and interest hereunder shall be made in immediately
available funds.

                  Reference is hereby made to the further provisions of this
Security set forth below, which further provisions shall for all purposes have
the same effect as if set forth at this place.

                  Unless the certificate of authentication hereon has been
executed by the Trustee by manual signature, this Security shall not be entitled
to any benefit under the Indenture or be valid for any purpose.


                                       A-2

<PAGE>   3
                  IN WITNESS WHEREOF, the Company has caused this instrument to
be executed.

                                                   THE ALLSTATE CORPORATION



                                                   By:
                                                      -------------------------
                                                   Name:
                                                   Title:



Attest:



By:
   -----------------------
   Name:
   Title:

                          CERTIFICATE OF AUTHENTICATION

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

Dated:

STATE STREET BANK AND TRUST COMPANY,
as Trustee



By:
   ---------------------------------------
         Authorized Signatory



                                       A-3

<PAGE>   4



                          (FORM OF REVERSE OF SECURITY)

         This Security is one of a duly authorized issue of a series of
Securities of the Company, designated as its 7 1/8 % Senior Quarterly Interest
Bonds due 2097, issued under and pursuant to an Indenture, dated as of December
16, 1997 between the Company and State Street Bank and Trust Company, as Trustee
(herein called the "Trustee," which term includes any successor trustee under
the Indenture), as supplemented by the First Supplemental Indenture, dated as of
December 16, 1997, between the Company and the Trustee (the Indenture as so
supplemented, the "Indenture"), to which Indenture and all indentures
supplemental thereto reference is hereby made for a description of the rights,
limitations of rights, obligations, duties and immunities thereunder of the
Trustee, the Company and the Holders of this Security and the other Securities
of this series, and of the terms upon which this Security and the other
Securities of this series are, and are to be, authenticated and delivered.

                  All terms used in this Security that are defined in the
Indenture shall have the meanings assigned to them in the Indenture.

                  On or after December 19, 2002, the Company may at any time, at
its option, subject to the terms and conditions of Article Eleven of the
Indenture, redeem this Security in whole or in part at any time or in part from
time to time, at 100% of the principal amount to be redeemed, plus accrued and
unpaid interest to the Redemption Date.

                  In the event of redemption of this Security in part only, a
new Security or Securities of this series for the unredeemed portion hereof will
be issued in the name of the Holder hereof upon the cancellation hereof.

                  If an Event of Default with respect to Securities of this
series shall occur and be continuing, the principal of the Securities of this
series may be declared due and payable in the manner, with the effect and
subject to the conditions provided in the Indenture.

                   Upon the occurrence of a Tax Event, as defined below, the
Company shall have the right to shorten the maturity of this Security to the
extent required, in the opinion of a nationally recognized independent tax
counsel experienced in such matters, so that, after such shortening of the
maturity, interest paid on this Security shall be deductible by the Company for
United States federal income tax purposes.

                  If the maturity of this Security is shortened upon the
occurrence of a Tax Event, the Company shall mail a notice to each Holder of
this Security by first-class mail not more than 60 days after the occurrence of
such Tax Event, stating the new maturity date of this Security, which date
thereafter shall be the Stated Maturity of the principal amount hereof. Such
notice shall be effective immediately upon mailing.

                  "Tax Event" shall mean that the Company has received an
opinion of a nationally recognized independent tax counsel experienced in such
matters to the effect that on or after the date


                                       A-4

<PAGE>   5
of the issuance of this Security, as a result of (a) any amendment to,
clarification of, or change (including any announced prospective change) in
laws, or any regulations thereunder, of the United States; (b) any judicial
decision, official administrative pronouncement, ruling, regulatory procedure,
notice or announcement, including any notice or announcement of intent to adopt
such procedures or regulations (an "Administrative Action"); or (c) any
amendment to, clarification of, or change in the official position or the
interpretation of such Administrative Action or judicial decision that differs
from the theretofore generally accepted position, in each case, on or after the
date of the issuance of this Security, there is more than an insubstantial risk
that interest paid by the Company on this Security is not, or will not be
deductible, in whole or in part, by the Company for purposes of federal income
tax.

                  The Indenture contains provisions for satisfaction, discharge
and defeasance at any time of the entire indebtedness of this Security upon
compliance by the Company with certain conditions set forth in the Indenture.
Pursuant to Section 1301 of the Indenture, the Company has designated this
Security as being defeasible pursuant to Section 1302 and Section 1303 of the
Indenture.

                  The Indenture permits, with certain exceptions as therein
provided, the amendment thereof and the modification of the rights and
obligations of the Company and the rights of the Holders of the Securities of
each series to be affected under the Indenture at any time by the Company and
the Trustee with the consent of the Holders of a majority in principal amount of
the Securities of each series at the time Outstanding of each series to be
affected. The Indenture also contains provisions permitting Holders of specified
percentages in principal amount of the Securities of each series at the time
Outstanding, on behalf of the Holders of all Securities of such series, to waive
compliance by the Company with certain provisions of the Indenture and certain
past defaults under the Indenture and their consequences. Any such consent or
waiver by the Holder of this Security shall be conclusive and binding upon such
Holder and upon all future Holders of this Security and of any Security issued
upon the registration of transfer hereof or in exchange therefor or in lieu
hereof, whether or not notation of such consent or waiver is made upon this
Security.

                  No reference herein to the Indenture and no provision of this
Security or of the Indenture (other than Section 1302 and Section 1303 of the
Indenture) shall alter or impair the obligation of the Company to pay the
principal and interest on this Security at the times, place and rate, and in the
coin or currency, herein prescribed.

                  As provided in the Indenture and subject to certain
limitations therein set forth, the transfer of this Security is registrable in
the Securities Register, upon surrender of this Security for registration of
transfer at the office or agency of the Company maintained under Section 1002 of
the Indenture duly endorsed by, or accompanied by a written instrument of
transfer, in form satisfactory to the Company and the Securities Registrar, duly
executed by the Holder hereof or his or her attorney duly authorized in writing,
and thereupon one or more new Securities of this series, of authorized
denominations and for the same aggregate principal amount, will be issued to the
designated transferee or transferees. No service charge shall be made for any
such registration of


                                       A-5

<PAGE>   6
transfer or exchange, but the Company may require payment of a sum sufficient to
cover any tax or other governmental charge payable in connection therewith.

                  Prior to due presentment of this 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 this Security is registered as the owner
hereof for all purposes, whether or not this Security be overdue, and neither
the Company, the Trustee nor any such agent shall be affected by notice to the
contrary.

                  This Global Security is exchangeable for Securities of this
series in definitive form only under certain limited circumstances set forth in
the Indenture. Securities of this series so issued are issuable in book-entry
form only and in denominations of $25 and any integral multiple thereof. As
provided in the Indenture and subject to certain limitations herein and therein
set forth, Securities of this series so issued are exchangeable for a like
aggregate principal amount of Securities of this series of a different
authorized denomination, as requested by the Holder surrendering the same.

                  The Company and, by its acceptance of this Security or a
beneficial interest therein, the Holder of, and any Person that acquires a
beneficial interest in, this Security agree that for United States federal,
state and local tax purposes it is intended that this Security constitute
indebtedness.

                  THIS SECURITY SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE
WITH THE INTERNAL LAWS OF THE STATE OF NEW YORK.


                                       A-6


<PAGE>   1
                                                                     EXHIBIT 4.2

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





                            THE ALLSTATE CORPORATION

                                       TO

                      STATE STREET BANK AND TRUST COMPANY
                                    Trustee



                              ___________________


                                   INDENTURE

                             SENIOR DEBT SECURITIES

                          Dated as of December 16, 1997


                              ___________________





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

<PAGE>   2

                               TABLE OF CONTENTS

                             _____________________

<TABLE>
<CAPTION>
                                                                                                                      PAGE
                                                                                                                      ----
                                                                                                          
<S>                                                                                                                    <C>
PARTIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    1
RECITALS OF THE COMPANY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    1
                                                                                                          
                                                                                                          
                                                                   ARTICLE ONE                            
                                                                                                          
                                             DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION      
                                                                                                          
SECTION 101.     Definitions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    1
                 Act  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    2
                 Affiliate  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    2
                 AIC  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    2
                 Authenticating Agent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    2
                 Board of Directors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    2
                 Board Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    2
                 Business Day . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    2
                 Commission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    2
                 Company  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    3
                 Company Request  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    3
                 Corporate Trust Office . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    3
                 corporation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    3
                 Covenant Defeasance  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    3
                 Defaulted Interest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    3
                 Defeasance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    3
                 Depositary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    3
                 Event of Default . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    3
                 Exchange Act . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    3
                 Expiration Date  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    3
                 Global Security  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    3
                 Holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    3
                 Indebtedness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    3
                 Indenture  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    4
                 interest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    4
                 Interest Payment Date  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    4
                 Investment Company Act . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    4
                 Maturity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    4
                 Notice of Default  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    4
                 Officers' Certificate  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    4
                 Opinion of Counsel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    4
                 Original Issue Discount Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    5
                 Outstanding  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    5
                 Paying Agent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    6
                 Person . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    6
                                                                                                          
</TABLE> 
                                                                               
                                                                               
                                                                               
                                                                               
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 NOTE:   This table of contents shall not, for any purpose, be deemed to be a  
                            part of the Indenture.                             
<PAGE>   3
<TABLE>
<S>              <C>                                                                                                  <C>
                 Place of Payment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    6
                 Predecessor Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    6
                 Redemption Date  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    6
                 Redemption Price . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    6
                 Regular Record Date  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    6
                 Responsible Officer  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    6
                 Securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    6
                 Securities Act . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    6
                 Security Register  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    6
                 Special Record Date  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    7
                 Stated Maturity  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    7
                 Subsidiary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    7
                 Trust Indenture Act  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    7
                 Trustee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    7
                 U.S. Government Obligation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    7
                 Vice President . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    7
SECTION 102.     Compliance Certificates and Opinions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    7
SECTION 103.     Form of Documents Delivered to Trustee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    8
SECTION 104.     Acts of Holders; Record Dates  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    9
SECTION 105.     Notices, Etc., to Trustee and Company. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   11
SECTION 106.     Notice to Holders; Waiver  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   11
SECTION 107.     Conflict with Trust Indenture Act  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   12
SECTION 108.     Effect of Headings and Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   12
SECTION 109.     Successors and Assigns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   12
SECTION 110.     Separability Clause  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   12
SECTION 111.     Benefits of Indenture  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   12
SECTION 112.     Governing Law  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   12
SECTION 113.     Legal Holidays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   12
SECTION 114.     Computations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   13
                                                                                                          
                                                                                                          
                                                                   ARTICLE TWO                            
                                                                                                          
                                                                 SECURITY FORMS                           
                                                                                                          
SECTION 201.     Forms Generally  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   13
SECTION 202.     Form of Legend for Global Securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   13
SECTION 203.     Form of Trustee's Certificate of Authentication  . . . . . . . . . . . . . . . . . . . . . . . . .   14
                                                                                                          
                                                                                                          
                                                                  ARTICLE THREE                           
                                                                                                          
                                                                 THE SECURITIES                           
                                                                                                          
SECTION 301.     Amount Unlimited; Issuable in Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   14
SECTION 302.     Denominations  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   17
SECTION 303.     Execution, Authentication, Delivery and Dating . . . . . . . . . . . . . . . . . . . . . . . . . .   17
SECTION 304.     Temporary Securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   19
SECTION 305.     Registration, Registration of Transfer and Exchange  . . . . . . . . . . . . . . . . . . . . . . .   19
                                                                                                          
                                                                                                          
                                                                                                          
                                                                                                          
                                                                                                          
</TABLE>                                                                       
________________                                                               
 NOTE:   This table of contents shall not, for any purpose, be deemed to be a  
                            part of the Indenture.                             
                                                                               
                                       ii                                      
<PAGE>   4
<TABLE>
<S>              <C>                                                                                                  <C>
SECTION 306.     Mutilated, Destroyed, Lost and Stolen Securities . . . . . . . . . . . . . . . . . . . . . . . . .   21
SECTION 307.     Payment of Interest; Interest Rights Preserved . . . . . . . . . . . . . . . . . . . . . . . . . .   22
SECTION 308.     Persons Deemed Owners  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   23
SECTION 309.     Cancellation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   23
SECTION 310.     Computation of Interest  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   24
                                                                                                          
                                                                                                          
                                                                  ARTICLE FOUR                            
                                                                                                          
                                                           SATISFACTION AND DISCHARGE                     
                                                                                                          
SECTION 401.     Satisfaction and Discharge of Indenture  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   24
SECTION 402.     Application of Trust Money . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   25
                                                                                                          
                                                                                                          
                                                                  ARTICLE FIVE                            
                                                                                                          
                                                                    REMEDIES                              
                                                                                                          
SECTION 501.     Events of Default  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   26
SECTION 502.     Acceleration of Maturity; Rescission and Annulment . . . . . . . . . . . . . . . . . . . . . . . .   27
SECTION 503.     Collection of Indebtedness and Suits for Enforcement by Trustee  . . . . . . . . . . . . . . . . .   28
SECTION 504.     Trustee May File Proofs of Claim.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   29
SECTION 505.     Trustee May Enforce Claims Without Possession of Securities  . . . . . . . . . . . . . . . . . . .   29
SECTION 506.     Application of Money Collected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   29
SECTION 507.     Limitation on Suits  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   30
SECTION 508.     Unconditional Right of Holders to Receive Principal,                                     
                    Premium and Interest  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   31
SECTION 509.     Restoration of Rights and Remedies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   31
SECTION 510.     Rights and Remedies Cumulative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   31
SECTION 511.     Delay or Omission Not Waiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   31
SECTION 512.     Control by Holders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   32
SECTION 513.     Waiver of Past Defaults  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   32
SECTION 514.     Undertaking for Costs  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   32
SECTION 515.     Waiver of Usury, Stay or Extension Laws  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   33
                                                                                                          
                                                                                                          
                                                                   ARTICLE SIX                            
                                                                                                          
                                                                   THE TRUSTEE                            
                                                                                                          
SECTION 601.     Certain Duties and Responsibilities  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   33
SECTION 602.     Notice of Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   33
SECTION 603.     Certain Rights of Trustee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   33
SECTION 604.     Not Responsible for Recitals or Issuance of Securities . . . . . . . . . . . . . . . . . . . . . .   34
SECTION 605.     May Hold Securities  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   35
SECTION 606.     Money Held in Trust  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   35
SECTION 607.     Compensation and Reimbursement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   35
SECTION 608.     Conflicting Interests  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   36
                                                                                                          
                                                                                                          
                                                                                                          
                                                                                                          
                                                                                                          
</TABLE>                                                                       
________________                                                               
 NOTE:   This table of contents shall not, for any purpose, be deemed to be a  
                            part of the Indenture.                             
                                                                               
                                      iii                                      
<PAGE>   5
<TABLE>
<S>            <C>                                                                                                    <C>
SECTION 609.     Corporate Trustee Required; Eligibility.   . . . . . . . . . . . . . . . . . . . . . . . . . . . .   36
SECTION 610.     Resignation and Removal; Appointment of Successor  . . . . . . . . . . . . . . . . . . . . . . . .   36
SECTION 611.     Acceptance of Appointment by Successor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   38
SECTION 612.     Merger, Conversion, Consolidation or Succession to Business  . . . . . . . . . . . . . . . . . . .   39
SECTION 613.     Preferential Collection of Claims Against Company  . . . . . . . . . . . . . . . . . . . . . . . .   39
SECTION 614.     Appointment of Authenticating Agent  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   39
                                                                                                          
                                                                                                          
                                                                  ARTICLE SEVEN                           
                                                                                                          
                                                HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY         
                                                                                                          
SECTION 701.     Company to Furnish Trustee Names and Addresses of Holders  . . . . . . . . . . . . . . . . . . . .   42
SECTION 702.     Preservation of Information; Communications to Holders . . . . . . . . . . . . . . . . . . . . . .   42
SECTION 703.     Reports by Trustee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   42
SECTION 704.     Reports by Company . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   43
                                                                                                          
                                                                                                          
                                                                  ARTICLE EIGHT                           
                                                                                                          
                                              CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE        
                                                                                                          
SECTION 801.     Company May Consolidate, Etc., Only on Certain Terms . . . . . . . . . . . . . . . . . . . . . . .   43
SECTION 802.     Successor Substituted  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   44
                                                                                                          
                                                                                                          
                                                                  ARTICLE NINE                            
                                                                                                          
                                                             SUPPLEMENTAL INDENTURES                      
                                                                                                          
SECTION 901.     Supplemental Indentures Without Consent of Holders . . . . . . . . . . . . . . . . . . . . . . . .   44
SECTION 902.     Supplemental Indentures With Consent of Holders  . . . . . . . . . . . . . . . . . . . . . . . . .   45
SECTION 903.     Execution of Supplemental Indentures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   46
SECTION 904.     Effect of Supplemental Indentures  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   47
SECTION 905.     Conformity with Trust Indenture Act  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   47
SECTION 906.     Reference in Securities to Supplemental Indentures . . . . . . . . . . . . . . . . . . . . . . . .   47
                                                                                                          
                                                                                                          
                                                                   ARTICLE TEN                            
                                                                                                          
                                                                    COVENANTS                             
                                                                                                          
SECTION 1001.    Payment of Principal, Premium and Interest . . . . . . . . . . . . . . . . . . . . . . . . . . . .   47
SECTION 1002.    Maintenance of Office or Agency  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   47
SECTION 1003.    Money for Securities Payments to Be Held in Trust  . . . . . . . . . . . . . . . . . . . . . . . .   48
SECTION 1004.    Statement by Officers as to Default  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   49
SECTION 1005.    Existence  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   49
SECTION 1006.    Maintenance of Properties  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   50
SECTION 1007.    Payment of Taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   50
                                                                                                          
                                                                                                          
                                                                                                          
                                                                                                          
                                                                                                          
</TABLE>                                                                       
________________                                                               
 NOTE:   This table of contents shall not, for any purpose, be deemed to be a  
                            part of the Indenture.                             
                                                                               
                                       iv                                      
<PAGE>   6
<TABLE>
<S>              <C>                                                                                                  <C>
SECTION 1008.    Limitation on Liens on Stock of Allstate Insurance Company . . . . . . . . . . . . . . . . . . . .   50
SECTION 1009.    Limitations on Disposition of Stock of Allstate Insurance Company  . . . . . . . . . . . . . . . .   51
SECTION 1010.    Waiver of Certain Covenants  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   51
                                                                                                          
                                                                                                          
                                                                 ARTICLE ELEVEN                           
                                                                                                          
                                                            REDEMPTION OF SECURITIES                      
                                                                                                          
SECTION 1101.    Applicability of Article . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   52
SECTION 1102.    Election to Redeem; Notice to Trustee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   52
SECTION 1103.    Selection by Trustee of Securities to Be Redeemed  . . . . . . . . . . . . . . . . . . . . . . . .   52
SECTION 1104.    Notice of Redemption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   53
SECTION 1105.    Deposit of Redemption Price  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   54
SECTION 1106.    Securities Payable on Redemption Date  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   54
SECTION 1107.    Securities Redeemed in Part  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   54
                                                                                                          
                                                                                                          
                                                                 ARTICLE TWELVE                           
                                                                                                          
                                                                  SINKING FUNDS                           
                                                                                                          
SECTION 1201.    Applicability of Article . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   55
SECTION 1202.    Satisfaction of Sinking Fund Payments with Securities  . . . . . . . . . . . . . . . . . . . . . .   55
SECTION 1203.    Redemption of Securities for Sinking Fund  . . . . . . . . . . . . . . . . . . . . . . . . . . . .   55
                                                                                                          
                                                                                                          
                                                                ARTICLE THIRTEEN                          
                                                                                                          
                                                       DEFEASANCE AND COVENANT DEFEASANCE                 
                                                                                                          
SECTION 1301.    Company's Option to Effect Defeasance or Covenant                                        
                    Defeasance  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   56
SECTION 1302.    Defeasance and Discharge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   56
SECTION 1303.    Covenant Defeasance  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   57
SECTION 1304.    Conditions to Defeasance or Covenant Defeasance  . . . . . . . . . . . . . . . . . . . . . . . . .   57
SECTION 1305.    Deposited Money and U.S. Government Obligations to Be                                    
                    Held in Trust; Miscellaneous Provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . .   59
SECTION 1306.    Reinstatement  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   59
                                                                                                          
                                                                                                          
                                                                                                          
                                                                                                          
                                                                                                                                  
</TABLE>                                                                       
________________                                                               
 NOTE:   This table of contents shall not, for any purpose, be deemed to be a  
                            part of the Indenture.                             
                                                                               
                                       v                                       
<PAGE>   7

          .........................................................

                 CERTAIN SECTIONS OF THIS INDENTURE RELATING
                         TO SECTIONS 310 THROUGH 318,
                 INCLUSIVE, OF THE TRUST INDENTURE ACT OF 1939:

        <TABLE> 
        <CAPTION>
        TRUST INDENTURE                                                                                          
         ACT SECTION                                                                     INDENTURE SECTION       
                                                                                                                 
<S>                                                                                     <C>                     
  SECTION  310(A)(1)     . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       609                     
              (A)(2)     . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       609                     
              (A)(3)     . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       NOT APPLICABLE          
              (A)(4)     . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       NOT APPLICABLE          
              (B)        . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       608                     
                                                                                         610                     
  SECTION  311(A)        . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       613                     
              (B)        . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       613                     
  SECTION  312(A)        . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       701                     
                                                                                         702                     
              (B)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      702                     
              (C)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      702                     
   SECTION 313(A)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      703                     
              (B)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      703                     
              (C)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      703                     
              (D)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      703                     
   SECTION 314(A)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      704                     
              (A)(4)      . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      101                     
                                                                                         1004                    
              (B)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      NOT APPLICABLE          
              (C)(L)      . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      102                     
              (C)(2)      . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      102                     
              (C)(3)      . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      NOT APPLICABLE          
              (D)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      NOT APPLICABLE          
              (E)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      102                     
   SECTION 315(A)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      601                     
              (B)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      602                     
              (C)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      601                     
              (D)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      601                     
              (E)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      514                     
   SECTION 316(A)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      101                     
              (A)(L)(A)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      502                     
                                                                                         512                     
              (A)(L)(B)   . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      513                     
              (A)(2)      . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      NOT APPLICABLE          
              (B)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      508                     
              (C)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      104                     
   SECTION 317(A)(1)      . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      503                     
              (A)(2)      . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      504                     
              (B)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      1003                    
   SECTION 318(A)         . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      107                     
        </TABLE>

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

<PAGE>   8

                         
         INDENTURE, dated as of December 16, 1997, between The Allstate
Corporation, a corporation duly organized and existing under the laws of the
State of Delaware (herein called the "Company"), having its principal office at
2775 Sanders Road, Northbrook, Illinois, and State Street Bank and Trust
Company, a trust company duly organized and existing under the laws of the
Commonwealth of Massachusetts, as Trustee (herein called the "Trustee").


                            RECITALS OF THE COMPANY

         The Company has duly authorized the execution and delivery of this
Indenture to provide for the issuance from time to time of its unsecured
debentures, notes or other evidences of indebtedness (herein called the
"Securities"), to be issued in one or more series as in this Indenture
provided.

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

         NOW, THEREFORE, THIS INDENTURE WITNESSETH:

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


                                  ARTICLE ONE

                        DEFINITIONS AND OTHER PROVISIONS
                             OF GENERAL APPLICATION


SECTION 101.  Definitions.

         For all purposes of this indenture, except as otherwise expressly
provided or unless the context otherwise requires:

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

         (2)  all other terms used herein which are defined in the Trust
    Indenture Act, either directly or by reference therein, have the meanings
    assigned to them therein;

         (3)  all accounting terms not otherwise defined herein have the
    meanings assigned to them in accordance with generally accepted accounting
    principles, and, except as otherwise herein expressly provided, the term
    "generally accepted accounting princi-

<PAGE>   9

    ples" with respect to any computation required or permitted hereunder shall
    mean such accounting principles as are generally accepted at the date of
    such computation;

         (4)  unless the context otherwise requires, any reference to an
    "Article" or a "Section" refers to an Article or a Section, as the case may
    be, of this Indenture; and

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

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

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

         "AIC" means Allstate Insurance Company, an insurance company duly
organized and existing under the insurance laws of the State of Illinois, or
any Person successor thereto.

         "Authenticating Agent" means any Person authorized by the Trustee
pursuant to Section 614 to act on behalf of the Trustee to authenticate
Securities of one or more series.

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

         "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" means each Monday, Tuesday, Wednesday, Thursday and
Friday which is not a day on which banking institutions in New York, New York,
Chicago, Illinois or any Place of Payment are authorized or obligated by law or
executive order to close.

         "Commission" means the Securities and Exchange Commission, from time
to time constituted, created under the Exchange Act, or, if at any time after
the 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 at such time.





                                       2

<PAGE>   10

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

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

         "Corporate Trust Office" means the principal office of the Trustee at
which at any particular time its corporate trust business shall be
administered, which as of the date of this Indenture is Two International Place,
Boston, Massachusetts 02110.

         "corporation" means a corporation, association, company, joint-stock
company or business trust.

         "Covenant Defeasance" has the meaning specified in Section 1303.

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

         "Defeasance" has the meaning specified in Section 1302.

         "Depositary" means, with respect to Securities of any series issuable
in whole or in part in the form of one or more Global Securities, a clearing
agency registered under the Exchange Act that is designated to act as
Depositary for such Securities as contemplated by Section 301.


         "Event of Default" has the meaning specified in Section 501.

         "Exchange Act" means the Securities Exchange Act of 1934 and any
statute successor thereto, in each case as amended from time to time.

         "Expiration Date" has the meaning specified in Section 104.

         "Global Security" means a Security that evidences all or part of the
Securities of any series and bears the legend set forth in Section 202 (or such
legend as may be specified as contemplated by Section 301 for such Securities).

         "Holder" means a Person in whose name a Security is registered in the
Security Register.

         "Indebtedness" of any person means the principal of and premium, if
any, and interest due on indebtedness of such Person, whether outstanding on
the date of this Indenture or thereafter created, incurred or assumed, which is
(a) indebtedness for money borrowed, and (b) any amendments, renewals,
extensions, modifications and refundings of any such indebtedness.  For the
purposes of this definition, "indebtedness for money borrowed" means (i) any
obligation of, or any obligation guaranteed by, such Person for





                                       3
<PAGE>   11

the repayment of borrowed money, whether or not evidenced by bonds, debentures,
notes or other written instruments, (ii) any obligation of, or any such
obligation guaranteed by, such Person evidenced by bonds, debentures, notes or
similar written instruments, including obligations assumed or incurred in
connection with the acquisition of property, assets or businesses (provided,
however, that the deferred purchase price of any other business or property or
assets shall not be considered Indebtedness if the purchase price thereof is
payable in full within 90 days from the date on which such indebtedness was
created), and (iii) any obligations of such Person as lessee under leases
required to be capitalized on the balance sheet of the lessee under generally
accepted accounting principles and leases of property or assets made as part of
any sale and lease-back transaction to which such Person is a party.

         "Indenture" means this instrument as originally executed and 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,
including, for all purposes of this instrument and any such supplemental
indenture, the provisions of the Trust Indenture Act that are deemed to be a
part of and govern this instrument and any such supplemental indenture,
respectively.  The term "Indenture" shall also include the terms of particular
series of Securities established as contemplated by Section 301.

         "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.

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

         "Investment Company Act" means the Investment Company Act of 1940 and
any statute successor thereto, in each case as amended from time to time.

         "Maturity", when used with respect to any Security, means the date on
which the principal of such Security or an instalment of principal becomes due
and payable as therein or herein provided, whether at the Stated Maturity or by
declaration of acceleration, call for redemption or otherwise.

         "Notice of Default" means a written notice of the kind specified in
Section 501(4) or 501(5).

         "Officers' Certificate" means a certificate signed by the Chairman of
the Board, or a Vice President, and by the Treasurer, an Assistant Treasurer,
the Secretary or an Assistant Secretary, of the Company, and delivered to the
Trustee.  One of the officers signing an Officers' Certificate given pursuant
to Section 1004 shall be the principal executive, financial or accounting
officer of the Company.

         "Opinion of Counsel" means a written opinion of counsel, who may be
counsel for (and an employee of) the Company, and who shall be reasonably
acceptable to the Trustee.





                                       4
<PAGE>   12

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

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

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

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

         (3)  Securities as to which Defeasance has been effected pursuant to
   Section 1302; 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 shall have been presented to the Trustee proof
   satisfactory to it that such Securities are held by a bona fide purchaser in
   whose hands such Securities are valid obligations of the Company;

provided, however, that in determining whether the Holders of the requisite
principal amount of the Outstanding Securities have given, made or taken any
request, demand, authorization, direction, notice, consent, waiver or other
action hereunder as of any date, (A) the principal amount of an Original Issue
Discount Security which shall be deemed to be Outstanding shall be the amount
of the principal thereof which would be due and payable as of such date upon
acceleration of the Maturity thereof to such date pursuant to Section 502, (B)
if, as of such date, the principal amount payable at the Stated Maturity of a
Security is not determinable, the principal amount of such Security which shall
be deemed to be Outstanding shall be the amount as specified or determined as
contemplated by Section 301, (C) the principal amount of a Security denominated
in one or more foreign currencies or currency units which shall be deemed to be
Outstanding shall be the U.S. dollar equivalent, determined as of such date in
the manner provided as contemplated by Section 301, of the principal amount of
such Security (or, in the case of a Security described in Clause (A) or (B)
above, of the amount determined as provided in such Clause), and (D) Securities
beneficially owned by the Company or any other obligor upon the Securities or
any Affiliate of the Company or of such other obligor shall be disregarded and
deemed not to be Outstanding, except that, in determining whether the Trustee
shall be protected in relying upon any such request, demand, authorization,
direction, notice,





                                       5
<PAGE>   13

consent, waiver or other action, only Securities which a Responsible Officer of
the Trustee knows to be 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 upon 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 or any premium or interest on any Securities on behalf of the
Company.

         "Person" means any individual, corporation, partnership, joint
venture, trust, unincorporated organization or government or any agency or
political subdivision thereof.

         "Place of Payment", when used with respect to the Securities of any
series, means the place or places where the principal of and any premium and
interest on the Securities of that series are payable as specified as
contemplated by Section 301.

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

         "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.

         "Regular Record Date" for the interest payable on any Interest Payment
Date on the Securities of any series means the date specified for that purpose
as contemplated by Section 301.

         "Responsible Officer" of the Trustee means an officer in the Corporate
Trust Office of the Trustee.

         "Securities" has the meaning stated in the first recital of this
Indenture and more particularly means any Securities authenticated and
delivered under this Indenture.

         "Securities Act" means the Securities Act of 1933 and any statute
successor thereto, in each case as amended from time to time.

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





                                       6
<PAGE>   14

         "Special Record Date" for the payment of any Defaulted Interest means
a date fixed by the Trustee pursuant to Section 307.

         "Stated Maturity", when used with respect to any Security or any
instalment of principal thereof or interest thereon, means the date specified
in such Security as the fixed date on which the principal of such Security or
such instalment of principal or interest is due and payable, in the case of
such principal or installment of principal, as such date may be extended or
shortened as provided pursuant to the terms of such Security.

         "Subsidiary" means a corporation more than 50% of the outstanding
voting stock of which is owned, directly or indirectly, by the Company or by
one or more other Subsidiaries, or by the Company and one or more other
Subsidiaries and which is engaged primarily in the insurance business.  For the
purposes of this definition, "voting stock" means stock which ordinarily has
voting power for the election of directors, whether at all times or only so
long as no senior class of stock has such voting power by reason of any
contingency.

         "Trust Indenture Act" means the Trust Indenture Act of 1939 as in
force at the date as of which this instrument was executed; provided, however,
that in the event the Trust Indenture Act of 1939 is amended after such date,
"Trust Indenture Act" means, to the extent required by any such amendment, the
Trust Indenture Act of 1939 as so amended.

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

         "U.S. Government Obligation" has the meaning specified in Section
1304.

         "Vice President", when used with respect to the Company or the
Trustee, means any vice president, whether or not designated by a number or a
word or words (including the word "Assistant") added before or after the title
"vice president".


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 such certificates and opinions as may be required under the Trust
Indenture Act.  Each such certificate or opinion shall be given in the form of
an Officers' Certificate, if to be given by an officer of the Company, or an
Opinion of Counsel, if to be given by counsel, and shall comply with the
requirements of the Trust Indenture Act and any other requirements set forth in
this Indenture.





                                       7
<PAGE>   15

         Every certificate or opinion with respect to compliance with a
condition or covenant provided for in this Indenture shall include,

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

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

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

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


SECTION 103.  Form of Documents Delivered to Trustee.

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

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

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





                                       8
<PAGE>   16


SECTION 104.  Acts of Holders; Record Dates.

         Any request, demand, authorization, direction, notice, consent, waiver
or other action provided or permitted by this Indenture to be given, made or
taken by Holders may be embodied in and evidenced by one or more instruments of
substantially similar tenor signed by such Holders in person or by agent duly
appointed in writing; and, except as herein otherwise expressly provided, such
action shall become effective when such instrument or instruments are delivered
to the Trustee and, where it is hereby expressly required, to the Company.
Such instrument or instruments (and the action embodied therein and evidenced
thereby) are herein sometimes referred to as the "Act" of the Holders signing
such instrument or instruments.  Proof of execution of any such instrument or
of a writing appointing any such agent shall be sufficient for any purpose of
this Indenture and (subject to Section 601) conclusive and may be relied upon
by the Trustee and the Company, if made in the manner provided in this Section.

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

         The ownership of Securities shall be proved by the Security Register.

         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 or the Company in
reliance thereon, whether or not notation of such action is made upon such
Security.

         The Company may set any day as a record date for the purpose of
determining the Holders of Outstanding Securities of any series entitled to
give, make or take any request, demand, authorization, direction, notice,
consent, waiver or other action provided or permitted by this Indenture to be
given, made or taken by Holders of Securities of such series, provided that the
Company may not set a record date for, and the provisions of this paragraph
shall not apply with respect to, the giving or making of any notice,
declaration, request or direction referred to in the next paragraph.  If any
record date is set pursuant to this paragraph, the Holders of Outstanding
Securities of the relevant series on such record date, and no other Holders,
shall be entitled to take the relevant action, whether or not such Holders
remain Holders after such record date; provided that no such action shall be
effective hereunder unless taken on or prior to the applicable Expiration Date
by Holders of the requisite principal amount of Outstanding Securities of such
series on such record





                                       9
<PAGE>   17

date.  Nothing in this paragraph shall be construed to prevent the Company from
setting a new record date for any action for which a record date has previously
been set pursuant to this paragraph (whereupon the record date previously set
shall automatically and with no action by any Person be cancelled and of no
effect), and nothing in this paragraph shall be construed to render ineffective
any action taken by Holders of the requisite principal amount of Outstanding
Securities of the relevant series on the date such action is taken.  Promptly
after any record date is set pursuant to this paragraph, the Company, at its
own expense, shall cause notice of such record date, the proposed action by
Holders and the applicable Expiration Date to be given to the Trustee in
writing and to each Holder of Securities of the relevant series in the manner
set forth in Section 106.

         The Trustee may set any day as a record date for the purpose of
determining the Holders of Outstanding Securities of any series entitled to
join in the giving or making of (i) any Notice of Default, (ii) any declaration
of acceleration referred to in Section 502, (iii) any request to institute
proceedings referred to in Section 507(2) or (iv) any direction referred to in
Section 512, in each case with respect to Securities of such series.  If any
record date is set pursuant to this paragraph, the Holders of Outstanding
Securities of such series on such record date, and no other Holders, shall be
entitled to join in such notice, declaration, request or direction, whether or
not such Holders remain Holders after such record date; provided that no such
action shall be effective hereunder unless taken on or prior to the applicable
Expiration Date by Holders of the requisite principal amount of Outstanding
Securities of such series on such record date.  Nothing in this paragraph shall
be construed to prevent the Trustee from setting a new record date for any
action for which a record date has previously been set pursuant to this
paragraph (whereupon the record date previously set shall automatically and
with no action by any Person be cancelled and of no effect), and nothing in
this paragraph shall be construed to render ineffective any action taken by
Holders of the requisite principal amount of Outstanding Securities of the
relevant series on the date such action is taken.  Promptly after any record
date is set pursuant to this paragraph, the Trustee, at the Company's expense,
shall cause notice of such record date, the proposed action by Holders and the
applicable Expiration Date to be given to the Company in writing and to each
Holder of Securities of the relevant series in the manner set forth in Section
106.

         With respect to any record date set pursuant to this Section, the
party hereto which sets such record dates may designate any day as the
"Expiration Date" and from time to time may change the Expiration Date to any
earlier or later day; provided that no such change shall be effective unless
notice of the proposed new Expiration Date is given to the other party hereto
in writing, and to each Holder of Securities of the relevant series in the
manner set forth in Section 106, on or prior to the existing Expiration Date.
If an Expiration Date is not designated with respect to any record date set
pursuant to this Section, the party hereto which set such record date shall be
deemed to have initially designated the 180th day after such record date as the
Expiration Date with respect thereto, subject to its right to change the
Expiration Date as provided in this paragraph.  Notwithstanding the foregoing,
no Expiration Date shall be later than the 180th day after the applicable
record date.





                                       10
<PAGE>   18

         Without limiting the foregoing, a Holder entitled hereunder to take
any action hereunder with regard to any particular Security may do so with
regard to all or any part of the principal amount of such Security or by one or
more duly appointed agents each of which may do so pursuant to such appointment
with regard to all or any part of such principal amount.


SECTION 105.   Notices, Etc., to Trustee and Company.

         Any request, demand, authorization, direction, notice, consent, waiver
or Act of Holders or other document provided or permitted by this Indenture to
be made upon, given or furnished to, or filed with,

         (1)  the Trustee by any Holder or by the Company shall be sufficient
    for every purpose hereunder if made, given, furnished or filed in writing
    to or with the Trustee at its Corporate Trust Office, Attention: Corporate
    Trust Manager The Allstate Corporation Indenture, or

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


SECTION 106.  Notice to Holders; Waiver.

         Where this Indenture provides for notice to Holders of any event, such
notice shall be sufficiently given (unless otherwise herein expressly provided)
if in writing and  mailed, first-class postage prepaid, to each Holder affected
by such event, at his address as it appears in the Security Register, not later
than the latest date (if any), and not earlier than the earliest date (if any),
prescribed for the giving of such notice.  In any case where  notice to Holders
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.  Where this Indenture provides for
notice in any manner, such notice may be waived in writing by the Person
entitled to receive such notice, either before or after the event, and such
waiver shall be the equivalent of such notice.  Waivers of notice by Holders
shall be filed with the Trustee, but such filing shall not be a condition
precedent to the validity of any action taken in reliance upon such waiver.

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





                                       11
<PAGE>   19

SECTION 107.  Conflict with Trust Indenture Act.

         If any provision hereof limits, qualifies or conflicts with a
provision of the Trust Indenture Act which is required under such Act to be a
part of and govern this Indenture, the latter provision shall control.  If any
provision of this Indenture modifies or excludes any provision of the Trust
Indenture Act which may be so modified or excluded, the latter provision shall
be deemed to apply to this Indenture as so modified or to be excluded, as the
case may be.


SECTION 108.  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 109.  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 110.  Separability Clause.

         In case any provision in this Indenture or in the Securities 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 111.  Benefits of Indenture.

         Nothing in this Indenture or in the Securities, express or implied,
shall give to any Person, other than the parties hereto and their successors
hereunder, and the Holders, any benefit or any legal or equitable right, remedy
or claim under this Indenture.


SECTION 112.  Governing Law.

         This Indenture and the Securities shall be governed by and construed
in accordance with the law of the State of New York.


SECTION 113.  Legal Holidays.

         In any case where any Interest Payment Date, Redemption Date or Stated
Maturity of any Security shall not be a Business Day, then (notwithstanding any
other provision of





                                       12
<PAGE>   20

this Indenture or of the Securities (other than a provision of any Security
which specifically states that such provision shall apply in lieu of this
Section)) payment of interest or principal (and premium, if any) need not be
made on such date, but may be made on the next succeeding Business Day with the
same force and effect as if made on the Interest Payment Date or Redemption
Date, or at the Stated Maturity.


SECTION 114.  Computations.

         Unless otherwise specifically provided, the certificate or opinion of
any independent firm of public accountants of recognized standing selected by
the Board of Directors shall be conclusive evidence of the correctness of any
computation made under the provisions of this Indenture.  The Company shall
furnish to the Trustee upon its request a copy of any such certificate or
opinion.


                                  ARTICLE TWO

                                 SECURITY FORMS


SECTION 201.  Forms Generally.

         The Securities of each series shall be in such form as shall be
established by or pursuant to a Board Resolution or in one or more indentures
supplemental hereto, in each case with such appropriate provisions as are
required or permitted by this indenture, and may have such letters, numbers or
other marks of identification and such legends or endorsements placed thereon
as may be required to comply with the rules of any securities exchange or
Depositary therefor or as may, consistently herewith, be determined by the
officers executing such Securities, as evidenced by their execution thereof.
If the form of Securities of any series is established by action taken pursuant
to a Board Resolution, a copy of an appropriate record of such action 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
contemplated by Section 303 for the authentication and delivery of such
Securities.

         The definitive Securities shall be printed, lithographed or engraved
on steel engraved borders or may be produced in any other manner, all as
determined by the officers executing such Securities, as evidenced by their
execution of such Securities.


SECTION 202.  Form of Legend for Global Securities.

         Unless otherwise specified as contemplated by Section 301 for the
Securities evidenced thereby, every Global Security authenticated and delivered
hereunder shall bear a legend in substantially the following form:





                                       13
<PAGE>   21


THIS SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE
HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF A DEPOSITARY OR A
NOMINEE THEREOF.  THIS SECURITY MAY NOT BE EXCHANGED IN WHOLE OR IN PART FOR A
SECURITY REGISTERED, AND NO TRANSFER OF THIS SECURITY IN WHOLE OR IN PART MAY
BE REGISTERED, IN THE NAME OF ANY PERSON OTHER THAN SUCH DEPOSITARY OR A
NOMINEE THEREOF, EXCEPT IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE
INDENTURE.


SECTION 203.  Form of Trustee's Certificate of Authentication.

         The Trustee's certificates of authentication shall be in substantially
the following form:

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



                                  ...........................................
                                                                   As Trustee


                                By...........................................
                                                         Authorized Signatory



                                 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 a Board Resolution and, subject to Section 303,
set forth, or determined in the manner provided, in an Officers' Certificate,
or established in one or more indentures supplemental hereto, prior to the
issuance of Securities of any series,

         (1)  the title of the Securities of the series (which shall
    distinguish the Securities of the series from Securities of any other
    series);

         (2)  any limit upon the aggregate principal amount of the Securities
    of the series which may be authenticated and delivered under this Indenture
    (except for Securities





                                       14
<PAGE>   22

    authenticated and delivered upon registration of transfer of, or in
    exchange for, or in lieu of, other Securities of the series pursuant to
    Section 304, 305, 306, 906 or 1107 and except for any Securities which,
    pursuant to Section 303, are deemed never to have been authenticated and
    delivered hereunder);

         (3)  the Person to whom any interest on a Security of the series shall
    be payable, if other than the Person in whose name that Security (or one or
    more Predecessor Securities) is registered at the close of business on the
    Regular Record Date for such interest;

         (4)  the date or dates on which the principal of any Securities of the
    series is payable;

         (5)  the rate or rates at which any Securities of the series shall
    bear interest, if any, the date or dates from which any such interest shall
    accrue, the Interest Payment Dates on which any such interest shall be
    payable and the Regular Record Date for any such interest payable on any
    Interest Payment Date;

         (6)  the place or places where the principal of and any premium and
    interest on any Securities of the series shall be payable;

         (7)  the period or periods within which, the price or prices at which
    and the terms and conditions upon which any Securities of the series may be
    redeemed, in whole or in part, at the option of the Company and, if other
    than by a Board Resolution, the manner in which any election by the Company
    to redeem the Securities shall be evidenced;

         (8)  the obligation, if any, of the Company to redeem or purchase any
    Securities of the series pursuant to any sinking fund or analogous
    provisions or at the option of the Holder thereof and the period or periods
    within which, the price or prices at which and the terms and conditions
    upon which any Securities of the series shall be redeemed or purchased, in
    whole or in part, pursuant to such obligation;

         (9)  if other than denominations of $1,000 and any integral multiple
    thereof, the denominations in which any Securities of the series shall be
    issuable;

         (10)  if the amount of principal of or any premium or interest on any
    Securities of the series may be determined with reference to an index or
    pursuant to a formula, the manner in which such amounts shall be
    determined;

         (11)  if other than the currency of the United States of America, the
    currency, currencies or currency units in which the principal of or any
    premium or interest on any Securities of the series shall be payable and
    the manner of determining the equivalent thereof in the currency of the
    United States of America for any purpose, including for purposes of the
    definition of "Outstanding" in Section 101;





                                       15
<PAGE>   23

         (12)  if the principal of or any premium or interest on any Securities
    of the series is to be payable, at the election of the Company or the
    Holder thereof, in one or more currencies or currency units other than that
    or those in which such Securities are stated to be payable, the currency,
    currencies or currency units in which the principal of or any premium or
    interest on such Securities as to which such election is made shall be
    payable, the periods within which and the terms and conditions upon which
    such election is to be made and the amount so payable (or the manner in
    which such amount shall be determined);

         (13)  if other than the entire principal amount thereof, the portion
    of the principal amount of any Securities of the series which shall be
    payable upon declaration of acceleration of the Maturity thereof pursuant
    to Section 502;

         (14)  if the principal amount payable at the Stated Maturity of any
    Securities of the series will not be determinable as of any one or more
    dates prior to the Stated Maturity, the amount which shall be deemed to be
    the principal amount of such Securities as of any such date for any purpose
    thereunder or hereunder, including the principal amount thereof which shall
    be due and payable upon any Maturity other than the Stated Maturity or
    which shall be deemed to be Outstanding as of any date prior to the Stated
    Maturity (or, in any such case, the manner in which such amount deemed to
    be the principal amount shall be determined);

         (15)  if applicable, that the Securities of the series, in whole or
    any specified part, shall be defeasible pursuant to Section 1302 or Section
    1303 or both such Sections and, if other than by a Board Resolution, the
    manner in which any election by the Company to defease such Securities
    shall be evidenced;

         (16)  if applicable, that any Securities of the series shall be
    issuable in whole or in part in the form of one or more Global Securities
    and, in such case, the respective Depositaries for such Global Securities,
    the form of any legend or legends which shall be borne by any such Global
    Security in addition to or in lieu of that set forth in Section 202 and any
    circumstances in addition to or in lieu of those set forth in Clause (2) of
    the last paragraph of Section 305 in which any such Global Security may be
    exchanged in whole or in part for Securities registered, and any transfer
    of such Global Security in whole or in part may be registered, in the name
    or names of Persons other than the Depositary for such Global Security or a
    nominee thereof;

         (17)  any addition to or change in the Events of Default which applies
    to any Securities of the series and any change in the right of the Trustee
    or the requisite Holders of such Securities to declare the principal amount
    thereof due and payable pursuant to Section 502;

         (18)  any addition to or change in the covenants set forth in Article
    Ten which applies to Securities of the series; and





                                       16
<PAGE>   24

         (19)  any other terms of the series (which terms shall not be
    inconsistent with the provisions of this Indenture, except as permitted by
    Section 901(5), but which may modify or delete any provision of this
    Indenture with respect to such series, provided that no such term may
    modify or delete any provision hereof if imposed by the Trust Indenture
    Act, and provided, further that any modification or deletion of the rights,
    duties or immunities of the Trustee hereunder shall have been consented to
    in writing by the Trustee).

         If any of the foregoing terms are not available at the time such Board
Resolution is adopted, or such Officers' Certificate or any supplemental
indenture is executed, such resolutions, Officers' Certificate or supplemental
indenture may reference the document or documents to be created in which such
terms will be set forth prior to the issuance of such Securities.

         All Securities of any one series shall be substantially identical
except as to denomination and except as may otherwise be provided in or
pursuant to the Board Resolution referred to above and (subject to Section 303)
set forth, or determined in the manner provided, in the Officers' Certificate
referred to above or in any such indenture supplemental hereto.

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


SECTION 302.  Denominations.

         The Securities of each series shall be issuable only in registered
form without coupons and only in such denominations as shall be specified as
contemplated by Section 301.  In the absence of any such specified denomination
with respect to the Securities of any series, the Securities of such series
shall be issuable in denominations of $1,000 and any integral multiple thereof.


SECTION 303.  Execution, Authentication, Delivery and Dating.

         The Securities shall be executed on behalf of the Company by its
Chairman of the Board, or one of its Vice Presidents, under its corporate seal
reproduced thereon attested by its Secretary or one of its Assistant
Secretaries.  The signature of any of these officers on the Securities may be
manual or facsimile.

         Securities 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.





                                       17
<PAGE>   25


         At any time and from time to time after the execution and delivery of
this Indenture, the Company may deliver Securities of any series 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 in
accordance with the Company Order shall authenticate and deliver such
Securities.  If the form or terms of the Securities of the series have been
established by or pursuant to one or more Board Resolutions as permitted by
Sections 201 and 301, in authenticating such Securities, and accepting the
additional responsibilities under this Indenture in relation to such
Securities, the Trustee shall be entitled to receive, and (subject to Section
601) shall be fully protected in relying upon, an Opinion of Counsel stating,

         (1)  if the form of such Securities has been established by or
    pursuant to Board Resolution as permitted by Section 201, that such form
    has been established in conformity with the provisions of this Indenture;

         (2)  if the terms of such Securities have been established by or
    pursuant to Board Resolution as permitted by Section 301, that such terms
    have been established in conformity with the provisions of this Indenture;
    and

         (3)  that such Securities, when authenticated and delivered by the
    Trustee and issued by the Company in the manner and subject to any
    conditions specified in such Opinion of Counsel, will constitute valid and
    legally binding obligations of the Company enforceable in accordance with
    their terms, subject to bankruptcy, insolvency, fraudulent transfer,
    reorganization, moratorium and similar laws of general applicability
    relating to or affecting creditors' rights and to general equity principles
    and any other customary exceptions reasonably requested by such counsel.

If such form or terms have been so established, 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 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 Securities of a series are not to be originally issued at one
time, it shall not be necessary to deliver the Officers' Certificate otherwise
required pursuant to Section 301 or the Company Order and Opinion of Counsel
otherwise required pursuant to such preceding paragraph at or prior to the
authentication of each Security of such series if such documents are delivered
at or prior to the authentication upon original issuance of the first Security
of such series to be issued.

         Each Security shall be dated the date of its authentication.

         No Security shall be entitled to any benefit under this Indenture or
be valid or obligatory for any purpose unless there appears on such Security a
certificate of authentication substantially in the form provided for herein
executed by the Trustee by manual signature, and such certificate upon any
Security shall be conclusive evidence, and the only





                                       18
<PAGE>   26

evidence, that such Security has been duly authenticated and delivered
hereunder.  Notwithstanding the foregoing, if any Security shall have been
authenticated and delivered hereunder but never issued and sold by the Company,
and the Company shall deliver such Security to the Trustee for cancellation as
provided in Section 309, 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.

         Pending the preparation of definitive Securities of any series, the
Company may execute, and upon Company Order the Trustee shall authenticate and
deliver, temporary Securities which are printed, lithographed, typewritten,
mimeographed or otherwise produced, in any authorized denomination,
substantially of the tenor of the definitive Securities in lieu of which they
are issued and with such appropriate insertions, omissions, substitutions and
other variations as the officers executing such Securities may determine, as
evidenced by their execution of such Securities.

         If temporary Securities of any series are issued, the Company will
cause definitive Securities of that series to be prepared without unreasonable
delay.  After the preparation of definitive Securities of such series, the
temporary Securities of such series shall be exchangeable for definitive
Securities of such series upon surrender of the temporary Securities of such
series at the office or agency of the Company in a Place of Payment for that
series, without charge to the Holder.  Upon surrender for cancellation of any
one or more temporary Securities of any series, the Company shall execute and
the Trustee shall authenticate and deliver in exchange therefor one or more
definitive Securities of the same series, of any authorized denominations and
of like tenor and aggregate principal amount.  Until so exchanged, the
temporary Securities of any series shall in all respects be entitled to the
same benefits under this Indenture as definitive Securities of such series and
tenor.


SECTION 305.  Registration, Registration of Transfer and Exchange.

         The Company shall cause to be kept at the Corporate Trust Office of
the Trustee a register (the register maintained in such office and in any other
office or agency of the Company in a Place of Payment being herein sometimes
collectively referred to as the "Security Register") in which, subject to such
reasonable regulations as it may prescribe, the Company shall provide for the
registration of Securities and of transfers of Securities.  The Trustee is
hereby appointed "Security Registrar" for the purpose of registering Securities
and transfers of Securities as herein provided.

         Upon surrender for registration of transfer of any Security of a
series at the office or agency of the Company in a Place of Payment for that
series, the Company shall execute, and the Trustee shall authenticate and
deliver, in the name of the designated transferee or transferees, one or more
new Securities of the same series, of any authorized denominations and of like
tenor and aggregate principal amount.





                                       19
<PAGE>   27


         At the option of the Holder, Securities of any series may be exchanged
for other Securities of the same series, of any authorized denominations and of
like tenor and aggregate principal amount, upon surrender of the Securities to
be exchanged at such office or agency.  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.

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

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

         If the Securities of any series (or of any series and specified tenor)
are to be redeemed by the Company in part, the Company shall not be required
(A) to issue, register the transfer of or exchange any Securities of that
series (or of that series and specified tenor, as the case may be) during a
period beginning at the opening of business 15 Business Days before the day of
the mailing of a notice of redemption of any such Securities selected for
redemption under Section 1103 and ending at the close of business on the day of
such mailing, or (B) to register the transfer of or exchange any Security so
selected for redemption in whole or in part, except the unredeemed portion of
any Security being redeemed in part.

         The provisions of Clauses (1), (2), (3) and (4) below shall apply only
to Global Securities:

         (1)  Each Global Security authenticated under this Indenture shall be
    registered in the name of the Depositary designated for such Global
    Security or a nominee thereof and delivered to such Depositary or a nominee
    thereof or custodian therefor, and each such Global Security shall
    constitute a single Security for all purposes of this Indenture.

         (2)  Notwithstanding any other provision in this Indenture, no Global
    Security may be exchanged in whole or in part for Securities registered,
    and no transfer of a Global Security in whole or in part may be registered,
    in the name of any Person other than the Depositary for such Global
    Security or a nominee thereof unless (A) such





                                       20
<PAGE>   28

    Depositary (i) has notified the Company that it is unwilling or unable to
    continue as Depositary for such Global Security or (ii) has ceased to be a
    clearing agency registered under the Exchange Act, (B) there shall have
    occurred and be continuing an Event of Default with respect to such Global
    Security or (C) there shall exist such circumstances, if any, in addition
    to or in lieu of the foregoing as have been specified for this purpose as
    contemplated by Section 301.

         (3)  Subject to Clause (2) above, any exchange of a Global Security
    for other Securities may be made in whole or in part, and all Securities
    issued in exchange for a Global Security or any portion thereof shall be
    registered in such names as the Depositary for such Global Security shall
    direct.

         (4)  Every Security authenticated and delivered upon registration of
    transfer of, or in exchange for or in lieu of, a Global Security or any
    portion thereof, whether pursuant to this Section, Section 304, 306, 906 or
    1107 or otherwise, shall be authenticated and delivered in the form of, and
    shall be, a Global Security, unless such Security is registered in the name
    of a Person other than the Depositary for such Global Security or a nominee
    thereof.


SECTION 306.  Mutilated, Destroyed, Lost and Stolen Securities.

         If any mutilated Security is surrendered to the Trustee, the Company
shall execute and the Trustee shall authenticate and deliver in exchange
therefor a new Security of the same series and of like tenor and principal
amount and bearing a number not contemporaneously outstanding.

         If there shall be delivered to the Company and the Trustee (i)
evidence to their satisfaction of the destruction, loss or theft of any
Security and (ii) such security or indemnity as may be required by them to save
each of them and any agent of either of them harmless, then, in the absence of
notice to the Company or the Trustee that such Security has been acquired by a
bona fide purchaser, the Company shall execute and the Trustee shall
authenticate and deliver, in lieu of any such destroyed, lost or stolen
Security, a new Security of the same series and of like tenor and principal
amount and bearing a number not contemporaneously outstanding.

         In case any such mutilated, destroyed, lost or stolen Security has
become or is about to become due and payable, the Company in its discretion
may, instead of issuing a new Security, pay such Security.

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





                                       21
<PAGE>   29

         Every new Security of any series issued pursuant to this Section in
lieu of any destroyed, lost or stolen Security shall constitute an original
additional contractual obligation of the Company, whether or not the destroyed,
lost or stolen Security shall be at any time enforceable by anyone, and shall
be entitled to all the benefits of this Indenture equally and proportionately
with any and all other Securities of that series 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.


SECTION 307.  Payment of Interest; Interest Rights Preserved.

         Except as otherwise provided as contemplated by Section 301 with
respect to any series of Securities, interest on any 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 that Security (or one or more Predecessor
Securities) is registered at the close of business on the Regular Record Date
for such interest.

         Any interest on any Security of any series which is payable, but is
not punctually paid or duly provided for, on any Interest Payment Date (herein
called "Defaulted Interest") shall forthwith cease to be payable to the Holder
on the relevant Regular Record Date by virtue of having been such Holder, and
such Defaulted Interest may be paid by the Company, at its election in each
case, as provided in Clause (1) or (2) below:

         (1)  The Company may elect to make payment of any Defaulted Interest
    to the Persons in whose names the 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 Security of such series and the date of the proposed payment, and
    at the same time the Company shall deposit with the Trustee an amount of
    money 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 prior to the date of the proposed payment, such money when
    deposited to be held in trust for the benefit of the Persons entitled to
    such Defaulted Interest as in this Clause provided.  Thereupon the Trustee
    shall fix a Special Record Date for the payment of such Defaulted Interest
    which shall be not more than 15 days and not less than 10 days prior to the
    date of the proposed payment and not less than 10 days after the receipt by
    the Trustee of the notice of the proposed payment.  The Trustee shall
    promptly notify the Company of such Special Record Date and, in the name
    and at the expense of the Company, shall cause notice of the proposed
    payment of such Defaulted Interest and the Special Record Date therefor to
    be given to each Holder of Securities of such series in the manner set
    forth in Section 106, not less than 10 days prior to such Special Record
    Date.  Notice of the proposed payment of such Defaulted Interest and the
    Special Record Date therefor having been so mailed, such Defaulted Interest
    shall be





                                       22
<PAGE>   30

    paid to the Persons in whose names the Securities of such series (or their
    respective Predecessor Securities) are registered at the close of business
    on such Special Record Date and shall no longer be payable pursuant to the
    following Clause (2).

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

         Subject to the foregoing provisions of this Section, 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 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 Security is registered as the owner of such
Security for the purpose of receiving payment of principal of and any premium
and (subject to Section 307) any interest on such Security and for all other
purposes whatsoever, whether or not such 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.


SECTION 309.  Cancellation.

         All Securities surrendered for payment, redemption, 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 shall be promptly cancelled by it.  The Company may at any time deliver to
the Trustee for cancellation any Securities previously authenticated and
delivered hereunder which the Company may have acquired in any manner
whatsoever, and may deliver to the Trustee (or to any other Person for delivery
to the Trustee) for cancellation any Securities previously authenticated
hereunder which the Company has not issued and sold, and all Securities so
delivered shall be promptly cancelled by the Trustee.  No Securities shall be
authenticated in lieu of or in exchange for any Securities cancelled as
provided in this Section, except as expressly permitted by this Indenture.  All
cancelled Securities held by the Trustee shall be disposed of as directed by a
Company Order.





                                       23
<PAGE>   31

SECTION 310.  Computation of Interest.

         Except as otherwise specified as contemplated by Section 301 for
Securities of any series, interest on the Securities of each series shall be
computed on the basis of a 360-day year 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 (except as to any surviving rights of registration of transfer or
exchange of Securities herein expressly provided for), and the Trustee, at the
expense of the Company, shall execute proper instruments acknowledging
satisfaction and discharge of this Indenture, when

         (1)  either

                 (A) all Securities theretofore authenticated and delivered
         (other than (i) Securities which have been destroyed, lost or stolen
         and which have been replaced or paid as provided in Section 306 and
         (ii) Securities 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 such Securities 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)  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 (i), (ii) or (iii) above, has deposited or
caused to be deposited with the Trustee as trust funds: (A) money in an amount;
(B) U.S. Government Obligations 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, money in an
amount; or (C) a combination thereof, in each case sufficient, in the opinion
of a nationally recognized firm of independent public accountants





                                       24
<PAGE>   32

expressed in a written certification thereof delivered to the Trustee to pay
and discharge, and which shall be applied by the Trustee; to pay and discharge
the entire indebtedness on such Securities not theretofore delivered to the
Trustee for cancellation, for principal and any premium and interest to the
date of such deposit (in the case of Securities which have become due and
payable) or to 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 an Officers' Certificate
    and an Opinion of Counsel, each stating that all conditions precedent
    herein provided for relating to the satisfaction and discharge of this
    Indenture have been complied with.

         Notwithstanding the satisfaction and discharge of this Indenture, the
obligations of the Company to the Trustee under Section 607, the obligations of
the Trustee to any Authenticating Agent under Section 614 and, if money shall
have been deposited with the Trustee pursuant to subclause (B) of Clause (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 Money.

         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 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 any premium
and interest for whose payment such money has been deposited with the Trustee.


                                  ARTICLE FIVE

                                    REMEDIES


SECTION 501.  Events of Default.

         "Event of Default", wherever used herein with respect to Securities of
any series, means any one of the following events (whatever the reason for such
Event of Default and whether it shall be voluntary or involuntary or be
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):





                                       25
<PAGE>   33

         (1)  default in the payment of any interest upon any Security of that
    series when it 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 any premium on any
    Security of that series at its Maturity; or

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

         (4)  default in the performance, or breach, of any covenant or
    warranty of the Company in this Indenture (other than a covenant or
    warranty a default in whose performance or whose breach is elsewhere in
    this Section specifically dealt with or which has expressly been included
    in this Indenture solely for the benefit of series of Securities other than
    that series), 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 that
    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)  the entry by a court having jurisdiction in the premises of (A) a
    decree or order for relief in respect of the Company or AIC in an
    involuntary case or proceeding under any applicable Federal or State
    bankruptcy, insolvency, reorganization or other similar law or (B) a decree
    or order adjudging the Company or AIC a bankrupt or insolvent, or approving
    as properly filed a petition seeking reorganization, arrangement,
    adjustment or composition of or in respect of the Company or AIC under any
    applicable Federal or State law, or appointing a custodian, receiver,
    liquidator, assignee, trustee, sequestrator or other similar official of
    the Company or AIC or of any substantial part of its property, or ordering
    the winding up or liquidation of its affairs, and the continuance of any
    such decree or order for relief or any such other decree or order unstayed
    and in effect for a period of 90 consecutive days; or

         (6)  the commencement by the Company or AIC of a voluntary case or
    proceeding under any applicable Federal or State bankruptcy, insolvency,
    reorganization or other similar law or of any other case or proceeding to
    be adjudicated a bankrupt or insolvent, or the consent by it to the entry
    of a decree or order for relief in respect of the Company or AIC in an
    involuntary case or proceeding under any applicable Federal or State
    bankruptcy, insolvency, reorganization or other similar law or to the
    commencement of any bankruptcy or insolvency case or proceeding against it,
    or the filing by it of a petition or answer or consent seeking
    reorganization or relief under any applicable Federal or State law, or the
    consent by it to the filing of such petition or to the appointment of or
    taking possession by a custodian, receiver, liquidator, assignee, trustee,
    sequestrator or other similar official of the Company or AIC or of any
    substantial part of its property, or the making by it of an assignment for
    the benefit of creditors, or the admission by it in writing of its
    inability to pay its debts





                                       26
<PAGE>   34

    generally as they become due, or the taking of corporate action by the
    Company or AIC in furtherance of any such action; or

         (7)  any other Event of Default provided with respect to Securities of
    that series.


SECTION 502.  Acceleration of Maturity; Rescission and Annulment.

         If an Event of Default (other than an Event of Default specified in
Section 501(5) or 501(6)) with respect to Securities of any series at the time
Outstanding occurs and is continuing, then in every such case the Trustee or
the Holders of not less than 25% in principal amount of the Outstanding
Securities of that series may declare the principal amount of all the
Securities of that series (or, if any Securities of that series are Original
Issue Discount Securities, such portion of the principal amount of such
Securities as may be specified by the terms thereof) to be due and payable
immediately, by a notice in writing to the Company (and to the Trustee if given
by Holders), and upon any such declaration such principal amount (or specified
amount) shall become immediately due and payable. If an Event of Default
specified in Section 501(5) or 501(6) with respect to Securities of any series
at the time Outstanding occurs, the principal amount of all the Securities of
that series (or, if any Securities of that series are Original Issue Discount
Securities, such portion of the principal amount of such Securities as may be
specified by the terms thereof) shall automatically, and without any
declaration or other action on the part of the Trustee or any Holder, become
immediately due and payable.

         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 in
this Article provided, the Holders of a majority in principal amount of the
Outstanding Securities of that 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

             (A) all overdue interest on all Securities of that series,

             (B) the principal of (and premium, if any, on) any Securities of
         that series which have become due otherwise than by such declaration
         of acceleration and any interest thereon at the rate or rates
         prescribed therefor in such Securities,

             (C) to the extent that payment of such interest is lawful,
         interest upon overdue interest at the rate or rates prescribed
         therefor 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;





                                       27
<PAGE>   35

    and

         (2)  all Events of Default with respect to Securities of that series,
    other than the non-payment of the principal of Securities of that 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
consequent thereon.


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 interest on any Security
    when such interest 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,
    if any, on) any Security at the Maturity thereof,

the Company will, upon demand of the Trustee, pay to it, for the benefit of the
Holders of such Securities, the whole amount then due and payable on such
Securities for principal and any premium and interest and, to the extent that
payment of such interest shall be legally enforceable, interest on any overdue
principal and premium and on any overdue interest, at the rate or rates
prescribed therefor in such Securities, and, in addition thereto, such further
amount as shall be 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 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
by such appropriate judicial proceedings as the Trustee shall deem 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 any judicial proceeding relative to the Company (or any
other obligor upon the Securities), its property or its creditors, the Trustee
shall be entitled and empowered, by intervention in such proceeding or
otherwise, to take any and all actions authorized under the Trust Indenture Act
in order to have claims of the Holders and the





                                       28
<PAGE>   36

Trustee allowed in any such proceeding. In particular, the Trustee shall be
authorized 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 to make
such payments to the Trustee and, in the event that the Trustee shall consent
to the making of such payments directly to the Holders, to pay to the Trustee
any amount due it for the reasonable compensation, expenses, disbursements and
advances of the Trustee, its agents and counsel, and any other amounts due the
Trustee under Section 607.

         No provision of this Indenture shall be deemed to authorize the
Trustee to authorize or consent to or accept or adopt on behalf of any Holder
any plan of reorganization, arrangement, adjustment or composition affecting
the Securities or the rights of any Holder thereof or to authorize the Trustee
to vote in respect of the claim of any Holder in any such proceeding; provided,
however, that the Trustee may, on behalf of the Holders, vote for the election
of a trustee in bankruptcy or similar official and be a member of a creditors'
or other similar committee.


SECTION 505.  Trustee May Enforce Claims Without Possession of Securities.

         All rights of action and claims under this Indenture or the Securities
may be prosecuted and enforced by the Trustee without the possession of any of
the Securities 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 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 any
premium or interest, upon presentation of the Securities and the notation
thereon of the payment if only partially paid and upon surrender thereof if
fully paid:

         FIRST:  To the payment of all amounts due the Trustee under Section
    607;

         SECOND:  To the payment of the amounts then due and unpaid for
    principal of and any premium and interest on the Securities 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 amounts due
    and payable on such Securities for principal and any premium and interest,
    respectively; and





                                       29
<PAGE>   37


         THIRD:  To the payment of the remainder, if any, to the Company, its
    successors or assigns or to whomsoever may be lawfully entitled to receive
    the same or as a court of competent jurisdiction may direct.


SECTION 507.  Limitation on Suits.

         No Holder of any Security of any series 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 that
    series;

         (2)  the Holders of not less than 25% in principal amount of the
    Outstanding Securities of that series shall 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 that 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 of such
Holders.


SECTION 508.     Unconditional Right of Holders to Receive Principal, Premium
                 and Interest.

         Notwithstanding any other provision in this Indenture, the Holder of
any Security shall have the right, which is absolute and unconditional, to
receive payment of the principal of and any premium and (subject to Section
307) interest on such Security on the respective Stated Maturities expressed in
such Security (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 without the consent of such Holder.





                                       30
<PAGE>   38



SECTION 509.  Restoration of Rights and Remedies.

         If the Trustee or any Holder 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, subject to any
determination in such proceeding, the Company, the Trustee and the Holders
shall 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 in the last
paragraph of Section 306, no right or remedy herein conferred upon or reserved
to the Trustee or to the Holders 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 Securities
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, as the case
may be.


SECTION 512.  Control by Holders.

         The Holders of 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 shall not be in conflict with any rule of law or 
    with this Indenture, and

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





                                       31
<PAGE>   39


SECTION 513.  Waiver of Past Defaults.

         The Holders of not less than 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 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 any premium or interest on
    any Security of such series, 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.

         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 impair any right consequent thereon.



SECTION 514.  Undertaking for Costs.

         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, suffered or
omitted by it as Trustee, a court may require any party litigant in such suit
to file an undertaking to pay the costs of such suit, and may assess costs
against any such party litigant, in the manner and to the extent provided in
the Trust Indenture Act; provided that neither this Section nor the Trust
Indenture Act shall be deemed to authorize any court to require such an
undertaking or to make such an assessment in any suit instituted by the
Company.


SECTION 515.  Waiver of Usury, Stay or Extension Laws.

         The Company covenants (to the extent that it may lawfully do so) that
it will not at any time insist upon, 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
that it may lawfully do so) hereby expressly waives all benefit or advantage of
any such law and covenants that it will not hinder, delay or impede the
execution of any power herein granted to the Trustee, but will suffer and
permit the execution of every such power as though no such law had been
enacted.





                                       32
<PAGE>   40

                                  ARTICLE SIX

                                  THE TRUSTEE


SECTION 601.  Certain Duties and Responsibilities.

         The duties and responsibilities of the Trustee shall be as provided by
the Trust Indenture Act. Notwithstanding the foregoing, no provision of this
Indenture shall require the Trustee 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 shall have
reasonable grounds for believing that repayment of such funds or adequate
indemnity against such risk or liability is not reasonably assured to it.
Whether or not therein expressly so provided, every provision of this Indenture
relating to the conduct or affecting the liability of or affording protection
to the Trustee shall be subject to the provisions of this Section.


SECTION 602.  Notice of Defaults.

         If a default occurs hereunder with respect to Securities of any
series, the Trustee shall give the Holders of Securities of such series notice
of such default as and to the extent provided by the Trust Indenture Act;
provided, however, that in the case of any default of the character specified
in Section 501(4) with respect to Securities of such series, no such notice to
Holders shall be given until at least 30 days after the occurrence thereof. For
the purpose 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 Securities of such series.


SECTION 603.  Certain Rights of Trustee.

         Subject to the provisions of Section 601:

         (1)  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, other evidence of indebtedness or other paper or
    document believed by it to be genuine and to have been signed or presented
    by the proper party or parties;

         (2)  any request or direction of the Company mentioned herein shall be
    sufficiently evidenced by a Company Request or Company Order, and any
    resolution of the Board of Directors shall be sufficiently evidenced by a
    Board Resolution;

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





                                       33
<PAGE>   41

    any action hereunder, the Trustee (unless other evidence be herein
    specifically prescribed) may, in the absence of bad faith on its part, rely
    upon an Officers' Certificate;

         (4)  the Trustee may consult with counsel and the written 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;

         (5)  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 pursuant to this Indenture, unless such Holders shall
    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;

         (6)  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, other evidence of indebtedness 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 shall determine 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; and

         (7)  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.


SECTION 604.  Not Responsible for Recitals or Issuance of Securities.

         The recitals contained herein and in the Securities, except the
Trustee's certificates of authentication, 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. 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 605.  May Hold Securities.

         The Trustee, any Authenticating Agent, any Paying Agent, any Security
Registrar or any other agent of the Company, in its individual or any other
capacity, may become the owner or pledgee of Securities and, subject to
Sections 608 and 613, may otherwise





                                       34
<PAGE>   42

deal with the Company with the same rights it would have if it were not
Trustee, Authenticating Agent, Paying Agent, Security Registrar or such other
agent.


SECTION 606.  Money Held in Trust.

         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 any money received by it hereunder except as
agreed with the Company herein or otherwise.


SECTION 607.  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 the
    Trustee upon its request for all reasonable expenses, disbursements and
    advances incurred or made by the Trustee in accordance with any provision
    of this Indenture (including the reasonable compensation and the reasonable
    expenses and disbursements of its agents or attorneys), except any such
    expense, disbursement or advance as may be attributable to the negligence,
    willful misconduct or bad faith of it or of its agents or attorneys; and

         (3)  to indemnify the Trustee for, and to hold it harmless against,
    any loss, liability or expense incurred without negligence, willful
    misconduct or bad faith on its part or on the part of its agents or
    attorneys, arising out of or in connection with the acceptance or
    administration of the trust or trusts hereunder, including the reasonable
    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.


SECTION 608.  Conflicting Interests.

         If the Trustee has or shall acquire a conflicting interest within the
meaning of the Trust Indenture Act, the Trustee shall either eliminate such
interest or resign, to the extent





                                       35
<PAGE>   43

and in the manner provided by, and subject to the provisions of, the Trust
Indenture Act and this Indenture. To the extent permitted by such Act, the
Trustee shall not be deemed to have a conflicting interest by virtue of being a
trustee under this Indenture with respect to Securities of more than one
series.


SECTION 609.  Corporate Trustee Required; Eligibility.

         There shall at all times be one (and only one) Trustee hereunder with
respect to the Securities of each series, and such Trustee may be Trustee for
one or more other series of Securities hereunder. Each Trustee shall be a
Person that is eligible pursuant to the Trust Indenture Act to act as such and
has a combined capital and surplus of at least $50,000,000. If any such Person
publishes reports of condition at least annually, pursuant to law or to the
requirements of its supervising or examining authority, then for the purposes
of this Section and to the extent permitted by the Trust Indenture Act, the
combined capital and surplus of such Person shall be deemed to be its combined
capital and surplus as set forth in its most recent report of condition so
published. If at any time the Trustee with respect to the Securities of any
series shall cease 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 610.  Resignation and Removal; Appointment of Successor.

         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 611.

         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 the
instrument of acceptance by a successor Trustee required by Section 611 shall
not have 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 with respect
to the Securities of such series.

         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 to the
Company.

         If at any time:

         (1)  the Trustee shall fail to comply with Section 608 after written
    request therefor by the Company or by any Holder who has been a bona fide
    Holder of a Security for at least six months, or





                                       36
<PAGE>   44

         (2)  the Trustee shall cease to be eligible under Section 609 and
    shall fail to resign after written request therefor by the Company or by
    any such Holder, or

         (3)  the Trustee shall become incapable of acting or shall be adjudged
    a bankrupt or insolvent or a receiver of the Trustee or of its property
    shall be appointed or any public officer shall take 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, (A) the Company by a Board Resolution may remove the
Trustee with respect to all Securities, or (B) subject to Section 514, any
Holder who has been a bona fide Holder of a Security for at least six months
may, on behalf of himself 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.

         If the Trustee shall resign, be removed or become incapable of acting,
or if a vacancy shall occur in the office of Trustee for any cause, with
respect to the Securities of one or more series, the Company, by a Board
Resolution, shall promptly appoint a successor Trustee or Trustees with respect
to the Securities of that or those 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) and shall comply with
the applicable requirements of Section 611. 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 shall be
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 in accordance with the applicable requirements
of Section 611, 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
shall have been so appointed by the Company or the Holders and accepted
appointment in the manner required by Section 611, any Holder who has been a
bona fide Holder of a Security of such series for at least six months may, on
behalf of himself and all others similarly situated, petition any court of
competent jurisdiction for the appointment of a successor Trustee with respect
to the Securities of such series.

         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 to all
Holders of Securities of such series in the manner provided 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.





                                       37
<PAGE>   45

SECTION 611.  Acceptance of Appointment by Successor.

         In case of the appointment hereunder of a successor Trustee with
respect to all Securities, every such successor Trustee so appointed shall
execute, acknowledge and deliver to the Company and to 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 the 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.

         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
wherein each successor Trustee shall accept such appointment and which (1)
shall contain such provisions as shall be 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
that or those series to which the appointment of such successor Trustee
relates, (2) if the retiring Trustee is not retiring with respect to all
Securities, shall contain such provisions as shall be deemed necessary or
desirable to confirm that all the rights, powers, trusts and duties of the
retiring Trustee with respect to the Securities of that or those series as to
which the retiring Trustee is not retiring shall continue to be vested in the
retiring Trustee, and (3) shall add to or change any of the provisions of this
Indenture as shall be 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 that or those 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 that or those series to which the
appointment of such successor Trustee relates.

         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 the
first or second preceding paragraph, as the case may be.





                                       38
<PAGE>   46


         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 612.  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 the corporate trust
business of the Trustee, shall be the successor Trustee hereunder, provided
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 shall 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 so authenticated with the same
effect as if such successor Trustee had itself authenticated such Securities.


SECTION 613.  Preferential Collection of Claims Against Company.

         If and when the Trustee shall be or become a creditor of the Company
(or any other obligor upon the Securities), the Trustee shall be subject to the
provisions of the Trust Indenture Act regarding the collection of claims
against the Company (or any such other obligor).


SECTION 614.  Appointment of Authenticating Agent.

         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 original
issue and upon exchange, registration of transfer or partial redemption thereof
or pursuant to Section 306, 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. Wherever 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 shall at all times be a corporation organized and
doing business under the laws of the United States of America, any State
thereof 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
authority. If such Authenticating Agent publishes reports of condition at least
annually, pursuant to law or to the requirements of said supervising or
examining





                                       39
<PAGE>   47

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.
If at any time an Authenticating Agent shall cease 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
shall be 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 shall be otherwise eligible
under this Section, without the execution or filing of any paper or any further
act on the part of the Trustee or the Authenticating Agent.

         An Authenticating Agent may resign at any time by giving written
notice thereof to the Trustee and to the Company. The Trustee may at any time
terminate the agency of an Authenticating Agent by giving written notice
thereof to such Authenticating Agent and to the Company. Upon receiving such a
notice of resignation or upon such a termination, or in case at any time such
Authenticating Agent shall cease to be eligible in accordance with the
provisions of this Section, the Trustee may appoint a successor Authenticating
Agent which shall be acceptable to the Company and shall give notice of such
appointment in the manner provided in Section 106 to all Holders of Securities
of the series with respect to which such Authenticating Agent will serve. 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.
No successor Authenticating Agent shall be appointed unless eligible under the
provisions of this Section.

         The Trustee agrees to pay to each Authenticating Agent from time to
time reasonable compensation for its services under this Section, and the
Trustee shall be entitled to be reimbursed for such payments, subject to the
provisions of Section 607.

         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 the Trustee's certificate of authentication, an alternative
certificate of authentication in the following form:





                                       40
<PAGE>   48

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


                            ................................................,
                                                                   As Trustee



                              By............................................,
                                                      As Authenticating Agent



                               By............................................
                                                         Authorized Signatory






                                       41
<PAGE>   49

                                 ARTICLE SEVEN

               HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY


SECTION 701.  Company to Furnish Trustee Names and Addresses of Holders.

         The Company will furnish or cause to be furnished to the Trustee

         (l)  semi-annually, not more than 15 days after each Regular Record
    Date for a series of Securities, a list, in such form as the Trustee may
    reasonably require, of the names and addresses of the Holders of Securities
    of such series as of such Regular Record Date, and

         (2)  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, that no such list need be provided in any case to the extent it would
include names and addresses received by the Trustee in its capacity as Security
Registrar.


SECTION 702.  Preservation of Information; Communications to Holders.

         The Trustee shall preserve, in as current a form as is reasonably
practicable, the names and addresses of Holders contained in the most recent
list furnished to the Trustee as provided in Section 701 and the names and
addresses of Holders received by the Trustee in its capacity as Security
Registrar.  The Trustee may destroy any list furnished to it as provided in
Section 701 upon receipt of a new list so furnished.

         The rights of Holders to communicate with other Holders with respect
to their rights under this Indenture or under the Securities, and the
corresponding rights and privileges of the Trustee, shall be as provided by the
Trust Indenture Act.

         Every Holder of Securities, by receiving and holding the same, agrees
with the Company and the Trustee that neither the Company nor the Trustee nor
any agent of either of them shall be held accountable by reason of any
disclosure of information as to names and addresses of Holders made pursuant to
the Trust Indenture Act.


SECTION 703.  Reports by Trustee.

         The Trustee shall transmit to Holders such reports concerning the
Trustee and its actions under this Indenture as may be required pursuant to the
Trust Indenture Act at the times and in the manner provided pursuant thereto.





                                       42
<PAGE>   50


         A copy of each such report shall, at the time of such transmission to
Holders, be filed by the Trustee with each stock exchange upon which any
Securities are listed, with the Commission and with the Company.  The Company
will notify the Trustee when any Securities are listed on any stock exchange.


SECTION 704.  Reports by Company.

         The Company shall file with the Trustee and the Commission, and
transmit to Holders, such information, documents and other reports, and such
summaries thereof, as may be required pursuant to the Trust Indenture Act at
the times and in the manner provided pursuant to such Act; provided that any
such information, documents or reports required to be filed with the Commission
pursuant to Section 13 or 15(d) of the Exchange Act shall be filed with the
Trustee within 15 days after the same is so required to be filed with the
Commission.


                                 ARTICLE EIGHT

              CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE


SECTION 801.  Company May Consolidate, Etc., Only on Certain Terms.

         (a)  Subject to Section 801(c), the Company shall not consolidate with
or merge into any other Person or convey, transfer or lease its properties and
assets substantially as an entirety to any Person, and the Company shall not
permit any Person to consolidate with or merge into the Company, unless:

         (1)  in case the Company shall consolidate with or merge into another
    Person or convey, transfer or lease its properties and assets substantially
    as an entirety to any Person, the Person formed by such consolidation or
    into which the Company is merged or the Person which acquires by conveyance
    or transfer, or which leases, the properties and assets of the Company
    substantially as an entirety shall be a corporation, partnership or trust,
    shall be organized and validly existing under the laws of the United States
    of America, any State thereof or the District of Columbia and shall
    expressly assume, by an indenture supplemental hereto, executed and
    delivered to the Trustee, the due and punctual payment of the principal of
    and any premium and interest on all the Securities and the performance or
    observance of every covenant of this Indenture on the part of the Company
    to be performed or observed;

         (2)  immediately after giving effect to such transaction, no Event of
    Default, and no event which, after notice or lapse of time or both, would
    become an Event of Default, shall have happened and be continuing; and

         (3)  the Company has delivered to the Trustee an Officers' Certificate
    and an Opinion of Counsel, each stating that such consolidation, merger,
    conveyance, transfer





                                       43
<PAGE>   51

    or lease and, if a supplemented indenture is required in connection with
    such transaction, such supplemental indenture comply with this Article and
    that all conditions precedent herein provided for relating to such
    transaction have been complied with.

         (b)  Subject to Section 801(c), any indebtedness which becomes an
obligation of the Company or any Subsidiary as a result of any such transaction
shall be treated as having been incurred by the Company or such Subsidiary at
the time of such transaction.

         (c)  The provisions of Section 801(a) and (b) shall not be applicable
to the direct or indirect transfer of all or any portion of the stock, assets
or liabilities of any Subsidiary to another Subsidiary.


SECTION 802.  Successor Substituted.

         Upon any consolidation of the Company with, or merger of the Company
into, any other Person or any conveyance, transfer or lease of the properties
and assets of the Company substantially as an entirety in accordance with
Section 801, the successor Person formed by such consolidation or into which
the Company is merged or to which such conveyance, transfer or lease is made
shall succeed to, and be substituted for, and may exercise every right and
power of, the Company under this Indenture with the same effect as if such
successor Person had been named as the Company herein, and thereafter, except
in the case of a lease, the predecessor Person shall be relieved of all
obligations and covenants under this Indenture and the Securities.


                                  ARTICLE NINE

                            SUPPLEMENTAL INDENTURES


SECTION 901.  Supplemental Indentures Without Consent of Holders.

         Without the consent of any Holders, the Company, when authorized by 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 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





                                       44
<PAGE>   52

    for the benefit of such series) or to surrender any right or power herein
conferred upon 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 additional Events
    of Default are to be for the benefit of less than all series of Securities,
    stating that such additional Events of Default are expressly being included
    solely for the benefit of such series); or

         (4)  to add to or change any of the provisions of this Indenture to
    such extent as shall be necessary to permit or facilitate the issuance of
    Securities in bearer form, registrable or not registrable as to principal,
    and with or without interest coupons, or to permit or facilitate the
    issuance of Securities in uncertificated form; or

         (5)  to add to, change or eliminate any of the provisions of this
    Indenture in respect of one or more series of Securities, provided that any
    such addition, change or elimination (A) shall neither (i) apply to any
    Security of any series created prior to the execution of such supplemental
    indenture and entitled to the benefit of such provision nor (ii) modify the
    rights of the Holder of any such Security with respect to such provision or
    (B) shall become effective only when there is no such Security Outstanding;
    or

         (6)  to secure the Securities; or

         (7)  to establish the form or terms of Securities of any series as
    permitted by Sections 201 and 301; 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 shall be necessary to provide for or facilitate the administration of
    the trusts hereunder by more than one Trustee, pursuant to the requirements
    of Section 611; or

         (9)  to cure any ambiguity, to correct or supplement any provision
    herein which may be defective or inconsistent with any other provision
    herein, or to make any other provisions with respect to matters or
    questions arising under this Indenture, provided that such action pursuant
    to this Clause (9) shall not adversely affect the interests of the Holders
    of Securities of any series in any material respect; or

         (10)  to conform any provision hereof to the requirements of the Trust
    Indenture Act.


SECTION 902.  Supplemental Indentures With Consent of Holders.

         With the consent of the Holders of not less than a majority in
principal amount of the Outstanding Securities of each series affected by such
supplemental indenture, by Act of said Holders delivered to the Company and the
Trustee, the Company, when authorized





                                       45
<PAGE>   53

by 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 of such
series under this Indenture; provided, however, that no such supplemental
indenture shall, without the consent of the Holder of each Outstanding Security
affected thereby,

         (1)  except to the extent provided pursuant to the terms of any series
    of Securities established under Section 301 hereof, change the Stated
    Maturity of the principal of, or any installment of principal of or
    interest on, any Security, or reduce the principal amount thereof or the
    rate of interest thereon or any premium payable upon the redemption
    thereof, or reduce the amount of the principal of an Original Issue
    Discount Security or any other Security which would be due and payable upon
    a declaration of acceleration of the Maturity thereof pursuant to Section
    502, or change the coin or currency in which, any Security or any premium
    or 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, on or after the Redemption Date), or

         (2)  reduce the percentage in principal amount of the Outstanding
    Securities of any series, the consent of whose Holders is required for any
    such supplemental indenture, or the consent of whose Holders is required
    for any waiver (of compliance with certain provisions of this Indenture or
    certain defaults hereunder and their consequences) provided for in this
    Indenture, or

         (3)  modify any of the provisions of this Section, Section 513 or
    Section 1010, except to increase any such percentage 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; provided, however, that this clause shall not be deemed to require
    the consent of any Holder with respect to changes in the references to "the
    Trustee" and concomitant changes in this Section and Section 1010, or the
    deletion of this proviso, in accordance with the requirements of Sections
    611 and  901(8).

A supplemental indenture which changes or eliminates any covenant or other
provision of this Indenture which has expressly been included solely 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.

         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 shall approve the substance thereof.


SECTION 903.  Execution of Supplemental Indentures.

         In executing, or accepting the additional trusts created by, any
supplemental indenture permitted by this Article or the modifications thereby
of the trusts created by





                                       46
<PAGE>   54

this Indenture, the Trustee shall be entitled to receive, and (subject to
Section 601) shall be fully protected in relying upon, 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 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.


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
shall so determine, 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.


                                  ARTICLE TEN

                                   COVENANTS

SECTION 1001.  Payment of Principal, Premium and Interest.

         The Company covenants and agrees for the benefit of each series of
Securities that it will duly and punctually pay the principal of and any
premium and interest on the Securities of that series in accordance with the
terms of the Securities and this Indenture.

SECTION 1002.  Maintenance of Office or Agency.

         The Company will maintain in the Borough of Manhattan, The City of New
York and each other Place of Payment for any series of Securities an office or
agency where





                                       47
<PAGE>   55

Securities of that series may be presented or surrendered for payment, where
Securities of that series may be surrendered for registration of transfer or
exchange and where notices and demands to or upon the Company in respect of the
Securities of that series and this Indenture may be served.  The Company will
give prompt written notice to the Trustee of the location, and any change in
the location, of such office or agency.  If at any time the Company shall fail
to maintain any such required office or agency or shall fail 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, and
the Company hereby appoints the Trustee as its agent to receive all such
presentations, surrenders, notices and demands.

         The Company may also from time to time designate one or more other
offices or agencies where the Securities of one or more series may be presented
or surrendered for any or all 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 each Place of Payment for Securities of any series for such
purposes.  The Company will 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.


SECTION 1003.  Money for Securities Payments to Be Held in Trust.

         If the Company shall at any time act as its own Paying Agent with
respect to any series of Securities, it will, on or before each due date of the
principal of or any premium or interest on any of the Securities of that
series, segregate and hold in trust for the benefit of the Persons entitled
thereto a sum sufficient to pay the principal and any premium and interest so
becoming due until such sums shall be paid to such Persons or otherwise
disposed of as herein provided and will promptly notify the Trustee of its
action or failure so to act.

         Whenever the Company shall have one or more Paying Agents for any
series of Securities, it will, prior to each due date of the principal of or
any premium or interest on any Securities of that series, deposit with a Paying
Agent a sum sufficient to pay such amount, such sum to be held as provided by
the Trust Indenture Act, and (unless such Paying Agent is the Trustee) the
Company will promptly notify the Trustee of its action or failure so to act.

         The Company will cause each Paying Agent for any series of Securities
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 will (1) comply with the provisions of
the Trust Indenture Act applicable to it as a Paying Agent and (2) during the
continuance of any default by the Company (or any other obligor upon the
Securities of that series) in the making of any payment in respect of the
Securities of that series, upon the written request of the Trustee, forthwith
pay to the Trustee all sums held in trust by such Paying Agent for payment in
respect of the Securities of that series.





                                       48
<PAGE>   56


         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 upon the same trusts as those upon 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 money.

         Any money or U.S. Government Obligation deposited with the Trustee or
any Paying Agent, or then held by the Company, in trust for the payment of the
principal of or any premium or interest on any Security of any series and
remaining unclaimed for two years after such principal, premium or interest has
become due and payable shall be paid to the Company at its option on 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 thereof, 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 a newspaper published in the English language, customarily published
on each Business Day and of general circulation in the Borough of Manhattan,
The City of New York, 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.  Statement by Officers as to Default.

         The Company will deliver to the Trustee, within 120 days after the end
of each fiscal year of the Company ending after the date hereof, an Officers'
Certificate, stating whether or not to the best knowledge of the signers
thereof the Company is in default in the performance and observance of any of
the terms, provisions and conditions of this Indenture (without regard to any
period of grace or requirement of notice provided hereunder) and, if the
Company shall be in default, specifying all such defaults and the nature and
status thereof of which they may have knowledge.


SECTION 1005.  Existence.

         Subject to Article Eight, the Company 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 the
Company shall not be required to preserve any such right or franchise if the
Board of Directors shall determine that the preservation thereof is no longer
desirable in the conduct of the business of the Company and that the loss
thereof is not disadvantageous in any material respect to the Holders.





                                       49
<PAGE>   57

SECTION 1006.  Maintenance of Properties.

         The Company will cause all buildings and equipment owned by it to be
maintained and kept in such condition, repair and working order as in the
judgment of the Company may be necessary in the interest of its business and
that of its Subsidiaries; provided, however, that nothing in this Section shall
prevent the Company from selling, abandoning or otherwise disposing of, or
discontinuing the operation or maintenance of, any of such properties if such
action is, in the judgment of the Company, desirable in the conduct of its
business or the business of any Subsidiary.


SECTION 1007.  Payment of Taxes.

         The Company will pay or discharge or cause to be paid or discharged,
before the same shall become delinquent, all taxes, assessments and
governmental charges levied or imposed upon the Company or any Subsidiary or
upon the income, profits or property of the Company or any Subsidiary, which,
if unpaid, might by law become a lien upon 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 or
governmental charge whose amount, applicability or validity is being contested
in good faith by appropriate proceedings.


SECTION 1008.  Limitation on Liens on Stock of Allstate Insurance Company.

         The Company will not, and it will not permit any Subsidiary of the
Company to, at any time directly or indirectly create, assume, incur or permit
to exist any Indebtedness secured by a pledge, lien or other encumbrance (any
pledge, lien or other encumbrance being hereinafter in this Section referred to
as a "lien") on the capital stock of AIC without making effective provision
whereby the Securities then Outstanding (and, if the Company so elects, any
other Indebtedness of the Company that is not subordinate to the Securities and
with respect to which the governing instruments require, or pursuant to which
the Company is otherwise obligated or required, to provide such security) shall
be equally and ratably secured with such secured Indebtedness so long as such
other Indebtedness shall be secured.  For purposes of this Section 1008 only,
"Indebtedness", in addition to those items specified in Section 101 hereof,
shall include any obligation of, or any such obligation guaranteed by, any
Person for the payment of amounts due under a swap agreement or other similar
instrument or agreement or foreign currency hedge exchange or similar
instrument or agreement.

         If the Company shall hereafter be required to secure the Securities
equally and ratably with any other Indebtedness pursuant to this Section, (i)
the Company will promptly deliver to the Trustee an Officers' Certificate
stating that the foregoing covenant has been complied with, and an Opinion of
Counsel stating that in the opinion of such counsel the foregoing covenant has
been complied with and that any instruments executed by the Company or any
Subsidiary of the Company in the performance of the foregoing covenant comply
with the requirements of the foregoing covenant and (ii) the Trustee is





                                       50
<PAGE>   58

hereby authorized to enter into an indenture or agreement supplemental hereto
and to take such action, if any, as it may deem advisable to enable it to
enforce the rights of the holders of the Securities so secured.


SECTION 1009.  Limitations on Disposition of Stock of Allstate Insurance
Company.

         Except in a transaction governed by Article Eight hereof, so long as
Securities of any series are Outstanding, the Company will not issue, sell,
transfer or otherwise dispose of any shares of, securities convertible into or
warrants, rights or options to subscribe for or purchase shares of, capital
stock (other than preferred stock having no voting rights of any kind) of AIC,
nor will it permit AIC to issue (other than to the Company) any shares (other
than directors' qualifying shares) of, or securities convertible into, or
warrants, rights or options to subscribe for or purchase shares of, capital
stock of (other than preferred stock having no voting rights of any kind) AIC
if, after giving effect to any such transaction and the issuances of the
maximum number of shares issuable upon the conversion or exercise of all such
convertible securities, warrants, rights or options, the Company would own,
directly or indirectly, less than 80% of the shares of AIC (other than
preferred stock having no voting rights of any kind); provided, however, that
(i) any issuance, sale, transfer or other disposition permitted by the
foregoing may only be made for at least a fair market value consideration, as
determined by the Board of Directors pursuant to a Board Resolution adopted in
good faith, and (ii) the foregoing shall not prohibit any such issuance or
disposition of securities if required by any law or any regulation or order of
any governmental or insurance regulatory authority.  Notwithstanding the
foregoing, (i) the Company may merge or consolidate AIC into or with another
direct wholly-owned Subsidiary of the Company and (ii) the Company may, subject
to the provisions of Article Eight, sell, transfer or otherwise dispose of the
entire capital stock of AIC at one time for at least a fair market value
consideration, as determined by the Board of Directors pursuant to a Board
Resolution adopted in good faith.


SECTION 1010.  Waiver of Certain Covenants.

         Except as otherwise specified as contemplated by Section 301 for
Securities of such series, the Company may, with respect to the Securities of
any series, omit in any particular instance to comply with any term, provision
or condition set forth in any covenant provided pursuant to Section 301(18),
901(2) or 901(7) for the benefit of the Holders of such series or in any of
Sections 1006 to 1009, inclusive, if before the time for such compliance the
Holders of at least a majority in principal amount of the Outstanding
Securities of such series shall, by Act of such Holders, either waive such
compliance in such instance or generally waive compliance with such term,
provision or condition, but no such waiver shall extend to or affect such term,
provision 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.





                                       51
<PAGE>   59

                                 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 such Securities) 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 a Board Resolution or in another manner specified as contemplated
by Section 301 for such Securities.  In case of any redemption at the election
of the Company of less than all the Securities of any series (including any
such redemption affecting only a single Security), the Company shall, at least
45 days prior to the Redemption Date fixed by the Company (unless a shorter
notice shall be satisfactory to the Trustee), notify the Trustee of such
Redemption Date, of the principal amount of Securities of such series to be
redeemed and, if applicable, of the tenor of the Securities 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 an
Officers' 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 are to be redeemed
(unless all the Securities of such series and of a specified tenor are to be
redeemed or unless such redemption affects only a single Security), the
particular Securities to be redeemed shall be selected not more than 45 days
prior to the Redemption Date by the Trustee, from the Outstanding Securities of
such series not previously called for redemption, by such method as the Trustee
shall deem fair and appropriate and which may provide for the selection for
redemption of a portion of the principal amount of any Security of such series,
provided that the unredeemed portion of the principal amount of any Security
shall be in an authorized denomination (which shall not be less than the
minimum authorized denomination) for such Security.  If less than all the
Securities of such series and of a specified tenor are to be redeemed (unless
such redemption affects only a single Security), the particular Securities to
be redeemed shall be selected not more than 45 days prior to the Redemption
Date by the Trustee, from the Outstanding Securities of such series and
specified tenor not previously called for redemption in accordance with the
preceding sentence.





                                       52
<PAGE>   60

         The Trustee shall promptly notify the Company in writing of the
Securities selected for redemption as aforesaid and, in case of any Securities
selected for partial redemption as aforesaid, the principal amount thereof to
be redeemed.

         The provisions of the two preceding paragraphs shall not apply with
respect to any redemption affecting only a single Security, whether such
Security is to be redeemed in whole or in part.  In the case of any such
redemption in part, the unredeemed portion of the principal amount of the
Security shall be in an authorized denomination (which shall not be less than
the minimum authorized denomination) for such Security.

         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 Securities redeemed or to be redeemed only in part, to the
portion of the principal amount of such Securities which has been or is to be
redeemed.


SECTION 1104.  Notice of Redemption.

         Notice of redemption shall be given by first-class mail, postage
prepaid, mailed not less than 30 nor more than 45 days prior to the Redemption
Date, to each Holder of Securities to be redeemed, at his address appearing in
the Security Register.

         All notices of redemption shall state:

         (1) the Redemption Date,

         (2) the Redemption Price,

         (3)  if less than all the Outstanding Securities of any series
    consisting of more than a single Security are to be redeemed, the
    identification (and, in the case of partial redemption of any such
    Securities, the principal amounts) of the particular Securities to be
    redeemed and, if less than all the Outstanding Securities of any series
    consisting of a single Security are to be redeemed, the principal amount of
    the particular Security to be redeemed,

         (4) that on the Redemption Date the Redemption Price will become due
    and payable upon each such Security to be redeemed and, if applicable, that
    interest thereon will cease to accrue on and after said date,

         (5) the place or places where each such Security is to be surrendered
    for payment of the Redemption Price, and

         (6) that the redemption is for a sinking fund, if such is the case.

         Notice of redemption of Securities to be redeemed at the election of
the Company 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 and shall be irrevocable.





                                       53
<PAGE>   61


SECTION 1105.  Deposit of Redemption Price.

         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, segregate and hold in trust as provided in Section 1003) an amount of
money sufficient to pay the Redemption Price of, and (except if the Redemption
Date shall be an Interest Payment Date) accrued interest on, all the Securities
which are to be redeemed on that date.


SECTION 1106.  Securities Payable on Redemption Date.

         Notice of redemption having been given as aforesaid, the Securities so
to be redeemed shall, on the Redemption Date, become due and payable at the
Redemption Price therein specified, and from and after such date (unless the
Company shall default in the payment of the Redemption Price and accrued
interest) such Securities shall cease to bear interest.  Upon surrender of any
such Security for redemption in accordance with said notice, such Security
shall be paid by the Company at the Redemption Price, together with accrued
interest to the Redemption Date; provided, however, that, unless otherwise
specified as contemplated by Section 301, installments of interest whose Stated
Maturity is on or prior to the Redemption Date will 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 Security called for redemption shall not be so paid upon
surrender thereof for redemption, the principal and any premium shall, until
paid, bear interest from the Redemption Date at the rate prescribed therefor in
the Security.

SECTION 1107.  Securities Redeemed in Part.

         Any Security which is to be redeemed only in part 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 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 and of like tenor, 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.





                                       54
<PAGE>   62

                                 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 any series except as otherwise specified as
contemplated by Section 301 for such Securities.

         The minimum amount of any sinking fund payment provided for by the
terms of any Securities 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 is herein referred to as an "optional sinking fund
payment".  If provided for by the terms of any Securities, the cash amount of
any 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 as provided for by the terms of such Securities.


SECTION 1202.  Satisfaction of Sinking Fund Payments with Securities.

         The Company (1) may deliver Outstanding Securities of a series (other
than any previously called for redemption) and (2) may apply as a credit
Securities of a 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, in each case in satisfaction of all or any part of any sinking fund
payment with respect to any Securities of such series required to be made
pursuant to the terms of such Securities as and to the extent provided for by
the terms of such Securities; provided that the Securities to be so credited
have not been previously so credited.  The Securities to be so credited shall
be received and credited for such purpose by the Trustee at the Redemption
Price, as specified in the Securities so to be redeemed, for redemption through
operation of the sinking fund and the amount of such sinking fund payment shall
be reduced accordingly.


SECTION 1203.   Redemption of Securities for Sinking Fund.

         Not less than 45 days prior to each sinking fund payment date for any
Securities, the Company will deliver to the Trustee an Officers' Certificate
specifying the amount of the next ensuing sinking fund payment for such
Securities pursuant to the terms of such Securities, the portion thereof, if
any, which is to be satisfied by payment of cash and the portion thereof, if
any, which is to be satisfied by delivering and crediting Securities pursuant
to Section 1202 and will also deliver to the Trustee any Securities to be so
delivered.  Not less than 30 days prior to each such sinking fund payment date,
the Trustee shall select the Securities to be redeemed upon such sinking fund
payment date in the manner specified in Section 1103 and cause notice of the
redemption thereof to be





                                       55
<PAGE>   63

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

                       DEFEASANCE AND COVENANT DEFEASANCE


SECTION 1301.  Company's Option to Effect Defeasance or Covenant Defeasance.

         The Company may elect, at its option at any time, to have Section 1302
or Section 1303 applied to any Securities or any series of Securities, as the
case may be, designated pursuant to Section 301 as being defeasible pursuant to
such Section 1302 or 1303, in accordance with any applicable requirements
provided pursuant to Section 301 and upon compliance with the conditions set
forth below in this Article.  Any such election shall be evidenced by a Board
Resolution or in another manner specified as contemplated by Section 301 for
such Securities.


SECTION 1302.  Defeasance and Discharge.

         Upon the Company's exercise of its option (if any) to have this
Section applied to any Securities or any series of Securities, as the case may
be, the Company shall be deemed to have been discharged from its obligations
with respect to such Securities as provided in this Section on and after the
date the conditions set forth in Section 1304 are satisfied (hereinafter called
"Defeasance").  For this purpose, such Defeasance means that the Company shall
be deemed to have paid and discharged the entire indebtedness represented by
such Securities and to have satisfied all its other obligations under such
Securities and this Indenture insofar as such Securities are concerned (and the
Trustee, at the expense of the Company, shall execute proper instruments
acknowledging the same), subject to the following which shall survive until
otherwise terminated or discharged hereunder: (1) the rights of Holders of such
Securities to receive, solely from the trust fund described in Section 1304 and
as more fully set forth in such Section, payments in respect of the principal
of and any premium and interest on such Securities when payments are due, (2)
the Company's obligations with respect to such Securities under Sections 304,
305, 306, 1002 and 1003, (3) the rights, powers, trusts, duties and immunities
of the Trustee hereunder and (4) this Article.  Subject to compliance with this
Article, the Company may exercise its option (if any) to have this Section
applied to any Securities notwithstanding the prior exercise of its option (if
any) to have Section 1303 applied to such Securities.





                                       56
<PAGE>   64

SECTION 1303.  Covenant Defeasance.

         Upon the Company's exercise of its option (if any) to have this
Section applied to any Securities or any series of Securities, as the case may
be, (1) the Company shall be released from its obligations under Section
801(3), Sections 1006 through 1009, inclusive, and any covenants provided
pursuant to Section 301(18), 901(2) or 901(7) for the benefit of the Holders of
such Securities and (2) the occurrence of any event specified in Sections
501(4) (with respect to any of Section 801(3), Sections 1006 through 1009,
inclusive, and any such covenants provided pursuant to Section 301(18), 901(2)
or 901(7)) and 501(7) shall be deemed not to be or result in an Event of
Default, in each case with respect to such Securities as provided in this
Section on and after the date the conditions set forth in Section 1304 are
satisfied (hereinafter called "Covenant Defeasance").  For this purpose, such
Covenant Defeasance means that, with respect to such Securities, 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 specified Section (to the extent
so specified in the case of Section 501(4)), whether directly or indirectly by
reason of any reference elsewhere herein to any such Section or by reason of
any reference in any such Section to any other provision herein or in any other
document, but the remainder of this Indenture and such Securities shall be
unaffected thereby.


SECTION 1304.  Conditions to Defeasance or Covenant Defeasance.

         The following shall be the conditions to the application of Section
1302 or Section 1303 to any Securities or any series of Securities, as the case
may be:

         (1)  The Company shall irrevocably have deposited or caused to be
    deposited with the Trustee (or another trustee which satisfies the
    requirements contemplated by Section 609 and agrees to comply with the
    provisions of this Article applicable to it) as trust funds in trust for
    the purpose of making the following payments, specifically pledged as
    security for, and dedicated solely to, the benefits of the Holders of such
    Securities, (A) money in an amount, or (B) U.S. Government Obligations
    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, money in an amount, or (C) a
    combination thereof, in each case sufficient, 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 any such other
    qualifying trustee) to pay and discharge, the principal of and any premium
    and interest on such Securities on the respective Stated Maturities, in
    accordance with the terms of this Indenture and such Securities.  As used
    herein, "U.S. Government Obligation" means (x) any security which is (i) a
    direct obligation of the United States of America for the payment of which
    the full faith and credit of the United States of America is pledged or
    (ii) an obligation 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 (i) or (ii), is not
    callable or redeemable at the option





                                       57
<PAGE>   65

    of the issuer thereof, and (y) any depositary receipt issued by a bank (as
    defined in Section 3(a)(2) of the Securities Act) as custodian with respect
    to any U.S. Government Obligation which is specified in Clause (x) above
    and held by such bank for the account of the holder of such depositary
    receipt, or with respect to any specific payment of principal of or
    interest on any U.S. Government Obligation which is so specified and held,
    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
    depositary receipt from any amount received by the custodian in respect of
    the U.S. Government Obligation or the specific payment of principal or
    interest evidenced by such depositary receipt.

         (2)  In the event of an election to have Section 1302 apply to any
    Securities or any series of Securities, as the case may be, the Company
    shall have delivered to the Trustee an Opinion of Counsel stating that (A)
    the Company has received from, or there has been published by, the Internal
    Revenue Service a ruling or (B) since the date of this instrument, there
    has been a change in the applicable Federal income tax law, in either case
    (A) or (B) to the effect that, and based thereon such opinion shall confirm
    that, the Holders of such Securities will not recognize gain or loss for
    Federal income tax purposes as a result of the deposit, Defeasance and
    discharge to be effected with respect to such Securities and will be
    subject to Federal income tax on the same amount, in the same manner and at
    the same times as would be the case if such deposit, Defeasance and
    discharge were not to occur.

         (3)  In the event of an election to have Section 1303 apply to any
    Securities or any series of Securities, as the case may be, the Company
    shall have delivered to the Trustee an Opinion of Counsel to the effect
    that the Holders of such Securities will not recognize gain or loss for
    Federal income tax purposes as a result of the deposit and Covenant
    Defeasance to be effected with respect to such Securities and will be
    subject to Federal income tax on the same amount, in the same manner and at
    the same times as would be the case if such deposit and Covenant Defeasance
    were not to occur.

         (4)  The Company shall have delivered to the Trustee an Officer's
    Certificate to the effect that it has been informed by the relevant
    securities exchange(s) that neither such Securities nor any other
    Securities of the same series, if then listed on any securities exchange,
    will be delisted as a result of such deposit.

         (5)  No event which is, or after notice or lapse of time or both would
    become, an Event of Default with respect to such Securities or any other
    Securities shall have occurred and be continuing at the time of such
    deposit or, with regard to any such event specified in Sections 501(5) and
    (6), at any time on or prior to the 90th day after the date of such deposit
    (it being understood that this condition shall not be deemed satisfied
    until after such 90th day).

         (6)  Such Defeasance or Covenant Defeasance shall not result in a
    breach or violation of, or constitute a default under, any indenture or
    other agreement or instrument for borrowed money to which the Company is a
    party or by which it is bound.





                                       58
<PAGE>   66

         (7)  Such Defeasance or Covenant Defeasance shall not result in the
    trust arising from such deposit constituting an investment company within
    the meaning of the Investment Company Act unless such trust shall be
    registered under such Act or exempt from registration thereunder.

         (8)  The Company shall have delivered to the Trustee an Officer's
    Certificate and an Opinion of Counsel, each stating that all conditions
    precedent with respect to such Defeasance or Covenant Defeasance have been
    complied with.

SECTION 1305.  Deposited Money and U.S. Government Obligations to Be Held in
Trust; Miscellaneous Provisions.

         Subject to the provisions of the last paragraph of Section 1003, all
money and U.S. Government Obligations (including the proceeds thereof)
deposited with the Trustee or other qualifying trustee (solely for purposes of
this Section and Section 1306, the Trustee and any such other trustee are
referred to collectively as the "Trustee") pursuant to Section 1304 in respect
of any Securities shall be held in trust and applied by the Trustee, in
accordance with the provisions of such Securities and this Indenture, to the
payment, either directly or through any such Paying Agent (including the
Company acting as its own Paying Agent) as the Trustee may determine, to the
Holders of such Securities, of all sums due and to become due thereon in
respect of principal and any premium and interest, but money so held in trust
need not be segregated from other funds except to the extent required by law.

         The Company shall pay and indemnify the Trustee against any tax, fee
or other charge imposed on or assessed against the U.S. Government Obligations
deposited pursuant to Section 1304 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 Outstanding Securities.

         Anything in this Article to the contrary notwithstanding, the Trustee
shall deliver or pay to the Company from time to time upon Company Request any
money or U.S. Government Obligations held by it as provided in Section 1304
with respect to any Securities which, in the opinion of a nationally recognized
firm of independent public accountants expressed in a written certification
thereof delivered to the Trustee, are in excess of the amount thereof which
would then be required to be deposited to effect the Defeasance or Covenant
Defeasance, as the case may be, with respect to such Securities.

SECTION 1306.  Reinstatement.

         If the Trustee or the Paying Agent is unable to apply any money in
accordance with this Article with respect to any Securities by reason of any
order or judgment of any court or governmental authority enjoining, restraining
or otherwise prohibiting such application, then the obligations under this
Indenture and such Securities from which the Company has been discharged or
released pursuant to Section 1302 or 1303 shall be revived and reinstated as
though no deposit had occurred pursuant to this Article with respect to such
Securities, until such time as the Trustee or Paying Agent is permitted to
apply all money held in trust pursuant to Section 1305 with respect to such
Securities in accordance with this Article;





                                       59
<PAGE>   67

provided, however, that if the Company makes any payment of principal of or any
premium or interest on any such Security following such reinstatement of its
obligations, the Company shall be subrogated to the rights (if any) of the
Holders of such Securities to receive such payment from the money so held in
trust.

         This instrument may be executed in any number of counterparts, each of
which so executed shall be deemed to be an original, but all such counterparts
shall together constitute but one and the same instrument.

         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.

                                             THE ALLSTATE CORPORATION



                                             By: /s/ James P. Zils
                                                -------------------------------
                                                 Name:  James P. Zils
                                                 Title: Treasurer


Attest:

/s/ Robert W. Pike                                           
- -------------------------------------------
 Name: Robert W. Pike
 Title:  Vice President Secretary 
         and General Counsel

                                             STATE STREET BANK AND TRUST 
                                             COMPANY, as Trustee



                                             By /s/ Henry Seamore
                                                -----------------------------
                                                Name:  Henry Seamore
                                                Title: Assistant Vice President


Attest:

/s/ James E. Schultz                                                   
- -------------------------------------------
 Name: James E. Schultz
 Title: Assistant Secretary


                                       60
<PAGE>   68

 STATE OF        )
                 ) ss.:
 COUNTY OF       )


         On the ___ day of ________, ____, before me personally came
__________________ to me known, who, being by me duly sworn, did depose and say
that he is __________________________ of STATE STREET BANK AND TRUST COMPANY, a
Massachusetts Trust Company described in and which executed the foregoing
instrument; that he knows the seal of said association; that the seal affixed
to said instrument is such seal; that it was so affixed by authority of the
Board of Directors of said trust company; and that he signed his name thereto
by like authority.

                                                        ______________________


 STATE OF        )
                 ) ss.:
 COUNTY OF       )


         On the ___ day of ________, ____, before me personally came
__________________ to me known, who, being by me duly sworn, did depose and say
that he is __________________________ of THE ALLSTATE CORPORATION, one of the
corporations described in and which executed the foregoing instrument; that he
knows the seal of said corporation; that the seal affixed to said instrument is
such corporate seal; that it was so affixed by authority of the Board of
Directors of said corporation; and that he signed his name thereto by like
authority.


                                                        ______________________

                                      61

<PAGE>   1
                                                                     EXHIBIT 4.3

                            THE ALLSTATE CORPORATION

                         FIRST SUPPLEMENTAL INDENTURE TO
                        INDENTURE DATED DECEMBER 16, 1997
                            (SENIOR DEBT SECURITIES)

                                  $250,000,000

                 7 1/8 % Senior Quarterly Interest Bonds due 2097

                  FIRST SUPPLEMENTAL INDENTURE, dated as of December 16, 1997,
between THE ALLSTATE CORPORATION, a Delaware corporation (the "Company"), and
STATE STREET BANK AND TRUST COMPANY, a Massachusetts trust company, as Trustee
(the "Trustee").

                                    RECITALS

                  The Company has heretofore executed and delivered to the
Trustee an Indenture for Senior Debt Securities, dated as of December 16, 1997
(the "Indenture"), providing for the issuance from time to time of series of the
Company's Securities.

                  Section 301 of the Indenture provides for various matters with
respect to any series of Securities issued under the Indenture to be established
in an indenture supplemental to the Indenture.

                  Section 901(7) of the Indenture provides for the Company and
the Trustee to enter into an indenture supplemental to the Indenture to
establish the form or terms of Securities of any series as provided by
Sections 201 and 301 of the Indenture.

                  NOW, THEREFORE, THIS FIRST SUPPLEMENTAL INDENTURE
WITNESSETH:

                  For and in consideration of the premises and the issuance of
the series of Securities provided for herein, it is mutually agreed, for the
equal and proportionate benefit of all Holders of the Securities of such series,
as follows:




                                        1

<PAGE>   2

                                    ARTICLE I

                       Relation to Indenture; Definitions

              Section 1.1. Relation to Indenture. This First Supplemental
Indenture constitutes an integral part of the Indenture.

              Section 1.2. Definitions. For all purposes of this First
Supplemental Indenture:

              (a) Capitalized terms used herein without definition shall have
the meanings specified in the Indenture;

              (b) All references herein to Articles and Sections, unless
otherwise specified, refer to the corresponding Articles and Sections of this
First Supplemental Indenture; and

              (c) The terms "herein", "hereof", "hereunder" and other words of
similar import refer to this First Supplemental Indenture.


                                   ARTICLE II

                            The Series of Securities

              Section 2.1. Title of the Securities. There shall be a series of
Securities designated the "71/8 % Senior Quarterly Interest Bonds due 2097" (the
"Bonds").

              Section 2.2. Limitation on Aggregate Principal Amount; Date of
Bonds. The aggregate principal amount of the Bonds which may be authenticated
and delivered under this Supplemental Indenture shall be limited to $250,000,000
(except for Bonds which may be authenticated and delivered upon transfer of, or
in exchange for, or in lieu of Bonds pursuant to the Indenture).

              Section 2.3. Principal Payment Date.

                   (a) The principal amount of the Bonds (together with any
         accrued and unpaid interest) shall be payable in a single installment
         on December 15, 2097, which date shall be the Stated Maturity of the
         principal amount of the Bonds.

                   (b) Notwithstanding the foregoing, upon the occurrence of a
         Tax Event, as defined below, the Company shall have the right to
         shorten the maturity of the Bonds to the extent required, in the
         opinion of a nationally recognized independent tax counsel experienced
         in such matters, so that, after such shortening of the maturity,
         interest paid on


                                        2

<PAGE>   3
         the Bonds shall be deductible by the Company for United States federal
         income tax purposes.

                   (c) If the maturity of the Bonds is shortened upon the
         occurrence of a Tax Event, the Company shall mail a notice to each
         Holder of the Bonds by first-class mail not more than 60 days after the
         occurrence of such Tax Event, stating the new maturity date of the
         Bonds, which date thereafter shall be the Stated Maturity of the
         principal amount of the Bonds. Such notice shall be effective
         immediately upon mailing.

                   (d) "Tax Event" means that the Company has received an
         opinion of a nationally recognized independent tax counsel experienced
         in such matters to the effect that on or after the date of the issuance
         of the Bonds, as a result of (a) any amendment to, clarification of, or
         change (including any announced prospective change) in laws, or any
         regulations thereunder, of the United States; (b) any judicial
         decision, official administrative pronouncement, ruling, regulatory
         procedure, notice or announcement, including any notice or announcement
         of intent to adopt such procedures or regulations (an "Administrative
         Action"); or (c) any amendment to, clarification of, or change in the
         official position or the interpretation of such Administrative Action
         or judicial decision that differs from the theretofore generally
         accepted position, in each case, on or after the date of the issuance
         of the Bonds, there is more an than insubstantial risk that interest
         paid by the Company on the Bonds is not, or will not be deductible, in
         whole or in part, by the Company for purposes of federal income tax.

                  Section 2.4. Interest and Interest Rates. The rate of interest
on each Bond shall be 71/8 % per annum, accruing from December 19, 1997, or from
the most recent interest payment date (each such date, an "Interest Payment
Date") to which interest has been paid or duly provided for, payable quarterly
in arrears on March 15, June 15, September 15 and December 15 of each year
commencing March 15, 1998 until the principal thereof shall have become due and
payable, and until the principal hereof is paid or duly provided for or made
available for payment. The amount of interest payable on any Interest Payment
Date shall be computed on the basis of a 360-day year of twelve 30-day months.
The amount of interest payable for any partial period shall be computed on the
basis of the actual number of days elapsed in a 360-day year of twelve 30-day
months. In the event that any date on which interest is payable on any Bond is
not a Business Day, then payment of interest payable on such date will be made
on the next succeeding day that is a Business Day (and without any interest or
other payment in respect of any such delay). A "Business Day" shall mean any
day, other than a Saturday or Sunday, on which banks in the City of New York are
not required by law to close. The interest installment so payable in respect of
any Bond, and punctually paid or duly provided for, on any Interest Payment Date
will, as provided in the Indenture, be paid to the person in whose name such
Bond (or one or more Predecessor Securities) is registered at the close of
business on the 15th calendar day prior to such Interest Payment Date (a
"Regular Record Date"). Any such interest installment not punctually paid or
duly provided for in respect of any Bond shall forthwith cease to be payable to
the registered Holder on such Regular Record Date and may either


                                        3

<PAGE>   4
be paid to the Person in whose name such Bond (or one or more Predecessor
Securities) is registered at the close of business on a Special Record Date to
be fixed by the Trustee for the payment of such Defaulted Interest, notice
whereof shall be given to the Holders of Bonds not less than 10 days prior to
such Special Record Date, or be paid at any time in any other lawful manner not
inconsistent with the requirements of any securities exchange on which the Bonds
may be listed, and upon such notice as may be required by such exchange, all as
more fully provided in the Indenture.

                  Section 2.5. Place of Payment. The Place of Payment where the
Bonds may be presented or surrendered for payment, where the Bonds may be
surrendered for registration of transfer or exchange and where notices and
demand to or upon the Company in respect of the Bonds and the Indenture may be
served shall be the Corporate Trust Office of the Trustee.

                  Section 2.6. Redemption. On or after December 19, 2002, the
Company may at any time, at its option, subject to the terms and conditions of
Article Eleven of the Indenture, redeem the Bonds in whole or in part, from time
to time, at 100% of the principal amount to be redeemed, plus accrued and unpaid
interest to the Redemption Date.

                  Section 2.7. Denomination. The Bonds shall be issuable in
book-entry form only and in denominations of $25 and integral multiples thereof.

                  Section 2.8. Currency. Principal and interest on the Bonds
shall be payable in such coin or currency of the United States of America that
at the time of payment is legal tender for payment of public and private debts.

                  Section 2.9. Form of Bonds. The Bonds shall be substantially
in the form attached as Exhibit A hereto.

                  Section 2.10. Securities Registrar and Paying Agent. The
Trustee shall serve initially as Securities Registrar and Paying Agent.

                  Section 2.11. Sinking Fund Obligations. The Company has no
obligation to redeem or purchase any Bonds pursuant to any sinking fund or
analogous requirement or upon the happening of a specified event or at the
option of a Holder thereof.

                  Section 2.12 Defeasance and Covenant Defeasance. Pursuant to
Section 1301 of the Indenture, the Company hereby designates the Bonds as
defeasible pursuant to Section 1302 (relating to defeasance and discharge) and
Section 1303 (relating to covenant defeasance) of the Indenture.

                  Section 2.13 Immediately Available Funds. All payments of
principal and interest on the Bonds shall be made in immediately available
funds.



                                        4

<PAGE>   5
                                   ARTICLE III

                                    Expenses

                  Section 3.1. Payment of Expenses. In connection with the
offering, sale and issuance of the Bonds, the Company, in its capacity as
borrower with respect to the Bonds, shall pay all costs and expenses relating to
the offering, sale and issuance of the Bonds, including commissions to the
underwriters payable pursuant to the Underwriting Agreement and compensation and
expenses of the Trustee under the Indenture in accordance with the provisions of
Section 607 of the Indenture.

                  Section 3.2. Payment Upon Resignation or Removal. Upon
termination of this First Supplemental Indenture or the Indenture or the removal
or resignation of the Trustee, unless otherwise stated, the Company shall pay to
the Trustee all amounts accrued to the date of such termination, removal or
resignation.



                                   ARTICLE IV

                            Miscellaneous Provisions

                  Section 4.1. Trustee Not Responsible for Recitals. The
recitals herein contained are made by the Company and not by the Trustee, and
the Trustee assumes no responsibility for the correctness thereof. The Trustee
makes no representation as to the validity or sufficiency of this First
Supplemental Indenture.

                  Section 4.2. Adoption, Ratification and Confirmation. The
Indenture, as supplemented and amended by this First Supplemental Indenture, is
in all respects hereby adopted, ratified and confirmed.

                  Section 4.3. Counterparts. This First Supplemental Indenture
may be executed in any number of counterparts, each of which shall be an
original, but such counterparts shall together constitute but one and the same
instrument.

                  Section 4.4. GOVERNING LAW. THIS FIRST SUPPLEMENTAL INDENTURE
AND EACH BOND SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE INTERNAL
LAWS OF THE STATE OF NEW YORK.




                                        5

<PAGE>   6
                  IN WITNESS WHEREOF, the parties hereto have caused this First
Supplemental Indenture to be duly executed, and their respective corporate seals
to be hereunto affixed and attested, on the date or dates indicated in the
acknowledgments and as of the day and year first above written.


                                            THE ALLSTATE CORPORATION

                                                     
                                            By:  /s/  James P. Zils
                                                 -----------------------------
                                            Name:   James P. Zils
                                            Title:  Treasurer


ATTEST:

         
By:  /s/ Robert W. Pike  
    -------------------------
Name:  Robert W. Pike
Title: Vice President, Secretary
           and General Counsel


                                            STATE STREET BANK AND TRUST 
                                            COMPANY, as Trustee


                                                     
                                            By:  /s/ James Mogavero
                                                -------------------------------
                                            Name:   James Mogavero
                                            Title:  Vice President




                                        6

<PAGE>   7




                                                                       EXHIBIT A
                           (FORM OF FACE OF SECURITY)

                  This Security is a Global Security within the meaning of the
Indenture hereinafter referred to and is registered in the name of a Depositary
or a nominee of a Depositary. This Security is exchangeable for Securities
registered in the name of a person other than the Depositary or its nominee only
in the limited circumstances described in the Indenture, and no transfer of this
Security (other than a transfer of this Security as a whole by the Depositary to
a nominee of the Depositary or by a nominee of the Depositary to the Depositary
or another nominee of the Depositary) may be registered except in limited
circumstances.

                  Unless this Security is presented by an authorized
representative of The Depository Trust Company (55 Water Street, New York, New
York) to the issuer or its agent for registration of transfer, exchange or
payment, and any Security issued is registered in the name of Cede & Co. or such
other name as requested by an authorized representative of The Depository Trust
Company and any payment hereon is made to Cede & Co., ANY TRANSFER, PLEDGE OR
OTHER USE HEREOF FOR VALUE OR OTHERWISE BY A PERSON IS WRONGFUL since the
registered owner hereof, Cede & Co., has an interest herein.

Certificate No.                                                   $_____________
                                                            CUSIP No.  _________



                            THE ALLSTATE CORPORATION

                 7 1/8 % Senior Quarterly Interest Bonds due 2097

                  THE ALLSTATE CORPORATION, a Delaware corporation (the
"Company," which term includes any successor corporation under the Indenture
hereinafter referred to), for value received, hereby promises to pay to CEDE &
CO. or registered assigns, the principal sum of ____________ ($__________) on
December 15, 2097. The Company further promises to pay interest on said
principal sum outstanding from December 19, 1997, or from the most recent
interest payment date (each such date, an "Interest Payment Date") to which
interest has been paid or duly provided for, quarterly in arrears on March 15,
June 15, September 15 and December 15 of each year commencing March 15, 1998, at
the rate of 71/8 % per annum, until the principal hereof shall have become due
and payable and, until the principal hereof is paid or duly provided for or made
available for payment. If, however, a Tax Event (as defined below) occurs, the
Company shall have the right to shorten the maturity of this Security as
provided below. The amount of interest payable on any Interest Payment Date
shall be computed on the basis of a 360-day year of twelve 30-day months. The
amount of interest payable for any partial period shall be computed on the basis
of the number of actual days elapsed in a 360-day year of twelve 30-day months.
In the event that any date on which interest is payable on this Security is not
a Business Day, then payment of interest payable on such date will be made on
the next succeeding day that is a Business Day (and without any


                                       A-1

<PAGE>   8
interest or other payment in respect of any such delay). A "Business Day" shall
mean any day, other than a Saturday or Sunday, on which the banks in the City of
New York are not required by law to close. The interest installment so payable,
and punctually paid or duly provided for, on any Interest Payment Date will, as
provided in the Indenture, be paid to the Person in whose name this Security (or
one or more Predecessor Securities) is registered at the close of business on
the 15th calendar day prior to such Interest Payment Date (a "Regular Record
Date"). Any such interest installment not punctually paid or duly provided for
shall forthwith cease to be payable to the registered Holder on such Regular
Record Date and may either be paid to the Person in whose name this Security (or
one or more Predecessor Securities) is registered at the close of business on a
Special Record Date to be fixed by the Trustee for the payment of such Defaulted
Interest, notice whereof shall be given to the Holder of this Security not less
than 10 days prior to such Special Record Date, or be paid at any time in any
other lawful manner not inconsistent with the requirements of any securities
exchange on which this Security may be listed, and upon such notice as may be
required by such exchange, all as more fully provided in the Indenture.

                  The principal of (and premium, if any) and the interest on
this Security shall be payable at the office or agency of the Company maintained
for that purpose in the United States in such coin or currency of the United
States of America that at the time of payment is legal tender for payment of
public and private debts; provided, however, that payment of interest may be
made at the option of the Company by check mailed to the registered Holder at
such address as shall appear in the Security Register. Notwithstanding the
foregoing, so long as the Holder of this Security is The Depository Trust
Company (or its nominee, including, without limitation, Cede & Co.), the payment
of the principal of (and premium, if any) and interest on this Security will be
made at such place and to such account as may be designated by The Depository
Trust Company (or its nominee, including, without limitation, Cede & Co.). All
payments of principal and interest hereunder shall be made in immediately
available funds.

                  Reference is hereby made to the further provisions of this
Security set forth below, which further provisions shall for all purposes have
the same effect as if set forth at this place.

                  Unless the certificate of authentication hereon has been
executed by the Trustee by manual signature, this Security shall not be entitled
to any benefit under the Indenture or be valid for any purpose.


                                       A-2

<PAGE>   9






                  IN WITNESS WHEREOF, the Company has caused this instrument to
be executed.

                                             THE ALLSTATE CORPORATION



                                             By:
                                                -------------------------------
                                             Name:
                                             Title:



Attest:



By:
   -----------------------------
   Name:
   Title:


                          CERTIFICATE OF AUTHENTICATION

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

Dated:

STATE STREET BANK AND TRUST COMPANY,
as Trustee



By:
   -----------------------------------------
           Authorized Signatory



                                       A-3

<PAGE>   10
                          (FORM OF REVERSE OF SECURITY)

         This Security is one of a duly authorized issue of a series of
Securities of the Company, designated as its 7 1/8 % Senior Quarterly Interest
Bonds due 2097, issued under and pursuant to an Indenture, dated as of December
16, 1997 between the Company and State Street Bank and Trust Company, as Trustee
(herein called the "Trustee," which term includes any successor trustee under
the Indenture), as supplemented by the First Supplemental Indenture, dated as of
December 16, 1997, between the Company and the Trustee (the Indenture as so
supplemented, the "Indenture"), to which Indenture and all indentures
supplemental thereto reference is hereby made for a description of the rights,
limitations of rights, obligations, duties and immunities thereunder of the
Trustee, the Company and the Holders of this Security and the other Securities
of this series, and of the terms upon which this Security and the other
Securities of this series are, and are to be, authenticated and delivered.

                  All terms used in this Security that are defined in the
Indenture shall have the meanings assigned to them in the Indenture.

                  On or after December 19, 2002, the Company may at any time, at
its option, subject to the terms and conditions of Article Eleven of the
Indenture, redeem this Security in whole or in part at any time or in part from
time to time, at 100% of the principal amount to be redeemed, plus accrued and
unpaid interest to the Redemption Date.

                  In the event of redemption of this Security in part only, a
new Security or Securities of this series for the unredeemed portion hereof will
be issued in the name of the Holder hereof upon the cancellation hereof.

                  If an Event of Default with respect to Securities of this
series shall occur and be continuing, the principal of the Securities of this
series may be declared due and payable in the manner, with the effect and
subject to the conditions provided in the Indenture.

                   Upon the occurrence of a Tax Event, as defined below, the
Company shall have the right to shorten the maturity of this Security to the
extent required, in the opinion of a nationally recognized independent tax
counsel experienced in such matters, so that, after such shortening of the
maturity, interest paid on this Security shall be deductible by the Company for
United States federal income tax purposes.

                  If the maturity of this Security is shortened upon the
occurrence of a Tax Event, the Company shall mail a notice to each Holder of
this Security by first-class mail not more than 60 days after the occurrence of
such Tax Event, stating the new maturity date of this Security, which date
thereafter shall be the Stated Maturity of the principal amount hereof. Such
notice shall be effective immediately upon mailing.



                                       A-4

<PAGE>   11
                  "Tax Event" shall mean that the Company has received an
opinion of a nationally recognized independent tax counsel experienced in such
matters to the effect that on or after the date of the issuance of this
Security, as a result of (a) any amendment to, clarification of, or change
(including any announced prospective change) in laws, or any regulations
thereunder, of the United States; (b) any judicial decision, official
administrative pronouncement, ruling, regulatory procedure, notice or
announcement, including any notice or announcement of intent to adopt such
procedures or regulations (an "Administrative Action"); or (c) any amendment to,
clarification of, or change in the official position or the interpretation of
such Administrative Action or judicial decision that differs from the
theretofore generally accepted position, in each case, on or after the date of
the issuance of this Security, there is more than an insubstantial risk that
interest paid by the Company on this Security is not, or will not be deductible,
in whole or in part, by the Company for purposes of federal income tax.

                  The Indenture contains provisions for satisfaction, discharge
and defeasance at any time of the entire indebtedness of this Security upon
compliance by the Company with certain conditions set forth in the Indenture.
Pursuant to Section 1301 of the Indenture, the Company has designated this
Security as being defeasible pursuant to Section 1302 and Section 1303 of the
Indenture.

                  The Indenture permits, with certain exceptions as therein
provided, the amendment thereof and the modification of the rights and
obligations of the Company and the rights of the Holders of the Securities of
each series to be affected under the Indenture at any time by the Company and
the Trustee with the consent of the Holders of a majority in principal amount of
the Securities of each series at the time Outstanding of each series to be
affected. The Indenture also contains provisions permitting Holders of specified
percentages in principal amount of the Securities of each series at the time
Outstanding, on behalf of the Holders of all Securities of such series, to waive
compliance by the Company with certain provisions of the Indenture and certain
past defaults under the Indenture and their consequences. Any such consent or
waiver by the Holder of this Security shall be conclusive and binding upon such
Holder and upon all future Holders of this Security and of any Security issued
upon the registration of transfer hereof or in exchange therefor or in lieu
hereof, whether or not notation of such consent or waiver is made upon this
Security.

                  No reference herein to the Indenture and no provision of this
Security or of the Indenture (other than Section 1302 and Section 1303 of the
Indenture) shall alter or impair the obligation of the Company to pay the
principal and interest on this Security at the times, place and rate, and in the
coin or currency, herein prescribed.

                  As provided in the Indenture and subject to certain
limitations therein set forth, the transfer of this Security is registrable in
the Securities Register, upon surrender of this Security for registration of
transfer at the office or agency of the Company maintained under Section 1002 of
the Indenture duly endorsed by, or accompanied by a written instrument of
transfer, in form satisfactory to the Company and the Securities Registrar, duly
executed by the Holder hereof or his or her


                                       A-5



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