MASTER AGREEMENT AMONG UNDERWRITERS

                            Registered SEC Offerings
                    (including Multiple Syndicate Offerings),
                   Standby Underwritings and Exempt Offerings
                 (other than Offerings of Municipal Securities)

                                                                    July 1, 1999

Ladies and Gentlemen:

          From time to time Salomon Smith Barney Inc. ("Salomon Smith Barney")
may invite you (and others) to participate on the terms set forth herein as an
underwriter or an initial purchaser, or in a similar capacity, in connection
with certain offerings of securities that are managed solely by us or with one
or more other co-managers. If we invite you to participate in a specific
offering and sale (an "Offering") to which this Master Agreement Among
Underwriters (the "Salomon Smith Barney Master AAU") shall apply, we will send
the information set forth below in Section 1.1 to you by one or more wires,
telexes, facsimile or electronic data transmissions or other written
communications (each a "Wire" and collectively, an "AAU"). Each Wire will
indicate that it is a Wire pursuant to the Salomon Smith Barney Master AAU. The
Wire inviting you to participate in an Offering is referred to herein as the
"Invitation Wire". You and we hereby agree that by the terms hereof the
provisions of this Salomon Smith Barney Master AAU automatically shall be
incorporated by reference in each AAU, except that any such AAU may also exclude
or revise any provision of this Salomon Smith Barney Master AAU or may contain
such additional provisions as may be specified in such AAU.

                                   I. GENERAL

          1.1. TERMS OF AAU; CERTAIN DEFINITIONS; CONSTRUCTION. Each AAU shall
relate to an Offering and shall identify (i) the securities to be offered in the
Offering (the "Securities"), their principal terms, the issuer or issuers (each
an "Issuer") and any guarantor (each a "Guarantor") thereof and, if different
from the Issuer, the seller or sellers (each a "Seller") of the Securities, (ii)
the underwriting agreement, purchase agreement, standby underwriting agreement,
distribution agreement or similar agreement (as identified in such AAU and as
amended or supplemented, including a terms agreement or pricing agreement
pursuant to any of the foregoing, collectively, the "Underwriting Agreement")
providing for the purchase, on a several and not joint basis, of the Securities
by the several underwriters, initial purchasers or others acting in a similar
capacity on whose behalf the Manager (as defined below) executes the
Underwriting Agreement (including the Manager and the



Co-Managers (as defined below), the "Underwriters"), (iii) if applicable, that
the Underwriting Agreement includes an option (an "Over-allotment Option") to
purchase Additional Securities (as defined below) to cover over-allotments, if
any, (iv) if applicable, that the Offering is part of an offering that includes
concurrent offerings by two or more syndicates (an "International Offering"),
each of which will offer and sell Securities subject to such restrictions as
shall be specified in any Intersyndicate Agreement (as defined below) referred
to in such AAU, (v) the price at which the Securities are to be purchased by the
several Underwriters from any Issuer or Seller thereof (the "Purchase Price"),
(vi) the offering terms, including, if applicable, the price or prices at which
the Securities initially will be offered by the Underwriters (the "Offering
Price"), any selling concession to dealers (the "Selling Concession"),
reallowance (the "Reallowance"), management fee, global coordinators' fee,
praecipium or other similar fees, discounts or commissions (collectively, the
"Fees and Commissions") with respect to the Securities, (vii) the proposed
pricing date ("Pricing Date") and settlement date (the "Settlement Date"),
(viii) any contractual restrictions on the offer and sale of the Securities
pursuant to the Underwriting Agreement, Intersyndicate Agreement or otherwise,
(ix) any co-managers for such Offering (the "Co-Managers"), (x) your proposed
participation in the Offering, (xi) if applicable, the trustee, fiscal agent or
similar agent (the "Trustee") for the indenture, trust agreement, fiscal agency
agreement or similar agreement (the "Indenture") under which such Securities
will be issued and (xii) any other principal terms of the Offering.

          The term "Manager" means Salomon Smith Barney. The term "Underwriters"
includes the Manager and the Co-Managers. The term "Firm Securities" means the
number or amount of Securities that the several Underwriters are initially
committed to purchase under the Underwriting Agreement (which may be expressed
as a percentage of an aggregate number or amount of Securities to be purchased
by the Underwriters as in the case of a standby Underwriting Agreement). The
term "Additional Securities" means the Securities, if any, that the several
Underwriters have an option to purchase under the Underwriting Agreement to
cover over-allotments, if any. The number, amount or percentage of Firm
Securities set forth opposite each Underwriter's name in the Underwriting
Agreement plus any additional Firm Securities that such Underwriter has become
obligated to purchase under the Underwriting Agreement or Article XI hereof is
hereinafter referred to as the "Original Purchase Obligation" of such
Underwriter and the ratio which such Original Purchase Obligation bears to the
total of all Firm Securities set forth in the Underwriting Agreement (or, in the
case of a standby Underwriting Agreement, to 100%) is hereinafter referred to as
the "Underwriting Percentage" of such Underwriter.

          References herein to statutory sections, rules, regulations, forms and
interpretive materials shall be deemed to include any successor provisions.

          1.2. ACCEPTANCE OF AAU. You shall have accepted an AAU for an Offering
if we receive your acceptance, prior to the time specified in the Invitation
Wire for such Offering, by wire, telex, facsimile or electronic data
transmission or other written communication (any such manner of communication
being deemed "In

                                        2



Writing") (or orally, if promptly confirmed In Writing) in the manner specified
in the Invitation Wire, of our invitation to participate in the Offering. If we
receive your timely acceptance of the invitation to participate, such AAU shall
constitute a valid and binding contract between us. Your acceptance of the
Invitation Wire shall also constitute acceptance by you of the terms of
subsequent Wires to you relating to the Offering unless we receive In Writing,
within the time and in the manner specified in such subsequent Wire, a notice
from you to the effect that you do not accept the terms of such subsequent Wire,
in which case you shall be deemed to have elected not to participate in the
Offering.

          1.3. UNDERWRITERS' QUESTIONNAIRE. Your acceptance of the Invitation
Wire shall confirm that you have no exceptions to the Underwriters'
Questionnaire attached as Exhibit A hereto (or to any other questions addressed
to you in any Wires relating to the Offering previously sent to you), other than
exceptions noted by you In Writing in connection with the Offering and received
from you by us before the time specified in the Invitation Wire or any
subsequent Wire.

                             II. OFFERING MATERIALS

          2.1. REGISTERED OFFERINGS. In the case of an Offering that will be
registered in whole or in part (a "Registered Offering") under the United States
Securities Act of 1933, as amended (the "1933 Act"), you understand that the
Issuer has filed with the Securities and Exchange Commission (the "Commission")
a registration statement including a prospectus relating to the Securities. The
term "Registration Statement" means such registration statement as amended or
deemed to be amended to the effective date of the Underwriting Agreement and, in
the event that the Issuer files an abbreviated registration statement to
register additional Securities pursuant to Rule 462(b) under the 1933 Act, such
abbreviated registration statement. The term "Prospectus" means the prospectus,
together with the final prospectus supplement, if any, relating to the Offering
first used to confirm sales of Securities and, in the case of a Registered
Offering that is an International Offering, the term "Prospectus" shall mean,
collectively, each prospectus or offering circular, together with each final
prospectus supplement or final offering circular supplement, if any, relating to
the Offering, in the respective forms first used or made available for use to
confirm sales of Securities. The term "Preliminary Prospectus" means any
preliminary prospectus relating to the Offering or any preliminary prospectus
supplement together with a prospectus relating to the Offering and, in the case
of a Registered Offering that is an International Offering, the term
"Preliminary Prospectus" shall mean, collectively, each preliminary prospectus
or preliminary offering circular relating to the Offering or each preliminary
prospectus supplement or preliminary offering circular supplement, together with
a prospectus or offering circular, respectively, relating to the Offering. As
used herein the terms "Registration Statement", "Prospectus" and "Preliminary
Prospectus" shall include in each case the material, if any, incorporated by
reference therein. The Manager will furnish to you, or make arrangements for you
to obtain, copies of each Prospectus and Preliminary

                                        3



Prospectus (but excluding for this purpose, unless otherwise required pursuant
to regulations under the 1933 Act, documents incorporated therein by reference)
as soon as practicable after sufficient quantities thereof have been made
available by the Issuer.

          2.2. UNREGISTERED OFFERINGS. In the case of an Offering other than a
Registered Offering, you understand that no registration statement has been
filed with the Commission. The term "Offering Circular" means an offering
circular or memorandum, if any, or any other written materials authorized by the
Issuer to be used in connection with an Offering that is not a Registered
Offering. The term "Preliminary Offering Circular" means any preliminary
offering circular or memorandum, if any, or any other written preliminary
materials authorized by the Issuer to be used in connection with such an
Offering. As used herein, the terms "Offering Circular" and "Preliminary
Offering Circular" shall include the material, if any, incorporated by reference
therein. We will either, as soon as practicable after the later of the date of
the Invitation Wire or the date made available to us by the Issuer, furnish to
you (or make available for your review in our office) a copy of any Preliminary
Offering Circular or any proof or draft of the Offering Circular. In any event,
in any Offering involving an Offering Circular, the Manager will furnish to you,
or make arrangements for you to obtain, as soon as practicable after sufficient
quantities thereof are made available by the Issuer, copies of the final
Offering Circular, as amended or supplemented, if applicable (but excluding for
this purpose documents incorporated therein by reference).

                            III. MANAGER'S AUTHORITY

          3.1. AUTHORITY OF MANAGER TO DETERMINE FORM OF DOCUMENTS, TERMS OF
OFFERING, ETC. You authorize the Manager to act as lead manager of the Offering
of the Securities by the Underwriters (the "Underwriters' Securities") or by the
Issuer or Seller pursuant to delayed delivery contracts (the "Contract
Securities"), if any, contemplated by the Underwriting Agreement. You authorize
the Manager, on your behalf, (a) to determine the form of the Underwriting
Agreement, (b) to execute and deliver the Underwriting Agreement to the Issuer,
Guarantor or Seller, (c) to determine the form of any agreement or agreements
between or among the syndicates participating in the International Offering of
which the Offering is a part (each an "Intersyndicate Agreement"), and (d) to
execute and deliver any such Intersyndicate Agreement. You authorize the Manager
(i) to exercise any Over-allotment Option for the purchase any of or all the
Additional Securities for the accounts of the several Underwriters pursuant to
the Underwriting Agreement, (ii) to agree, on your behalf and on behalf of the
Co-Managers, to any addition to, change in or waiver of any provision of, or the
termination of, the Underwriting Agreement or any Intersyndicate Agreement
(other than an increase in the Purchase Price or in your Original Purchase
Obligation to purchase Securities, in either case from that contemplated by the
applicable AAU), (iii) to add or remove prospective Underwriters to or from the
syndicate, (iv) to exercise, in the Manager's discretion, all the authority
vested in the Manager in the Underwriting

                                        4



Agreement and (v) except as described below in this Section 3.1, to take any
other action as may seem advisable to the Manager in respect of the Offering
(including, without limitation, actions and communications with the Commission,
the National Association of Securities Dealers, Inc. (the "NASD"), state blue
sky or securities commissions, stock exchanges and other regulatory bodies or
organizations). If, in accordance with the terms of the applicable AAU, the
Offering of the Securities is at varying prices based on prevailing market
prices or prices related to prevailing market prices or at negotiated prices,
you authorize the Manager to determine, on your behalf in the Manager's
discretion, any Offering Price and the Fees and Commissions applicable to the
Offering from time to time. You authorize the Manager on your behalf to arrange
for any currency transactions (including forward and hedging currency
transactions) as the Manager deems necessary to facilitate settlement of the
purchase of the Securities, but you do not authorize the Manager on your behalf
to engage in any other forward or hedging transactions in connection with the
Offering unless such transactions are specified in an applicable AAU or are
otherwise consented to by you. You further authorize the Manager, subject to the
provisions of Section 1.2 hereof, (i) to vary the offering terms of the
Securities in effect at any time, including, if applicable, the Offering Price
and Fees and Commissions set forth in the applicable AAU, (ii) to determine, on
your behalf, the Purchase Price and (iii) to increase or decrease the number,
amount or percentage of Securities being offered. Notwithstanding the foregoing
provisions of this Section 3.1, the Manager shall notify the Underwriters, prior
to the signing of the Underwriting Agreement, of any provision in the
Underwriting Agreement that could result in an increase in the amount or
percentage of Firm Securities set forth opposite each Underwriter's name in the
Underwriting Agreement by more than 25% (or such other percentage as shall have
been specified in the applicable Invitation Wire or otherwise consented to by
you) as a result of the failure or refusal of another Underwriter or
Underwriters to perform its or their obligations thereunder.

          3.2. OFFERING DATE. The Offering is to be made as soon after the
Underwriting Agreement is entered into by the Issuer, Guarantor or Seller and
the Manager as in the Manager's judgment is advisable, on the terms and
conditions set forth in the Prospectus or the Offering Circular, as the case may
be, and the applicable AAU. You agree not to sell any Securities prior to the
time the Manager releases such Securities for sale to purchasers. The date on
which such Securities are released for sale is referred to herein as the
"Offering Date".

          3.3. ADVERTISING; SUPPLEMENTAL OFFERING MATERIAL. Any public
advertisement of the Offering shall be made by the Manager on behalf of the
Underwriters on such date as the Manager shall determine. You agree not to
advertise the Offering prior to the date of the Manager's advertisement thereof
without the Manager's consent. If the offering is made in whole or in part in
reliance on Rule 144A (or upon another exemption from registration), you agree
not to engage in any general solicitation and to abide by any other restrictions
in the AAU or the Underwriting Agreement in connection therewith relating to any
advertising or publicity. Any advertisement you may make of the Offering after
such date will be your own

                                        5



responsibility and at your own expense and risk. In addition to your agreement
to comply with restrictions on the Offering pursuant to Sections 10.10 and 10.11
hereof, you also agree that you will not, in connection with the offer and sale
of the Securities in the Offering, without the consent of the Manager, give to
any prospective purchaser of the Securities or other person not in your employ
any written information concerning the Offering, the Issuer, the Guarantor or
the Seller, other than information contained in any Preliminary Prospectus,
Prospectus, Preliminary Offering Circular or Offering Circular or in any
computational materials ("Computational Materials") or other offering materials
prepared by or with the consent of the Manager for use by the Underwriters in
connection with the Offering and, in the case of a Registered Offering, filed
with the Commission or the NASD, as applicable (the "Supplemental Offering
Materials"). You further agree to cease distribution of any Computational
Materials on the Offering Date.

          3.4. INSTITUTIONAL AND RETAIL SALES. You authorize the Manager to sell
to institutions or retail purchasers such Securities purchased by you pursuant
to the Underwriting Agreement as the Manager shall determine. The Selling
Concession on any such sales shall be credited to the accounts of the
Underwriters as the Manager shall determine.

          3.5. SALES TO DEALERS. You authorize the Manager to sell to Dealers
(as defined below) such Securities purchased by you pursuant to the Underwriting
Agreement as the Manager shall determine. A "Dealer" shall be a person who is
(a) a broker or dealer (as defined in the By-Laws of the NASD) actually engaged
in the investment banking or securities business and (i) a member in good
standing of the NASD or (ii) a foreign bank, broker, dealer or other institution
not eligible for membership in the NASD that, in the case of either clause
(a)(i) or (a)(ii), makes the representations and agreements applicable to such
institutions contained in Section 10.6 hereof or (b) in the case of Offerings of
Securities that are exempt securities under Section 3(a)(12) of the Securities
Exchange Act of 1934, as amended (the "1934 Act"), and such other Securities as
from time to time may be sold by a "bank" (as defined in Section 3(a)(6) of the
1934 Act (a "Bank")), a Bank that is not a member of the NASD and that makes the
representations and agreements applicable to such institutions contained in
Section 10.6 hereof. If the price for any such sales by the Manager to Dealers
exceeds an amount equal to the Offering Price less the Selling Concession set
forth in the applicable AAU, the amount of such excess, if any, shall be
credited to the accounts of the Underwriters as the Manager shall determine.

          3.6. DIRECT SALES. The Manager will advise you promptly, on the date
of the Offering, as to the Securities purchased by you pursuant to the
Underwriting Agreement that you shall retain for direct sale. At any time prior
to the termination of the applicable AAU, any such Securities that are held by
the Manager for sale but not sold, may, on your request and at the Manager's
discretion, be released to you for direct sale, and Securities so released to
you shall no longer be deemed held for sale by the Manager. You may allow, and
Dealers may reallow, a discount on sales to Dealers in an amount not in excess
of the Reallowance set forth in the applicable AAU.

                                        6



You may not purchase Securities from, or sell Securities to, any other
Underwriter or Dealer at any discount or concession other than the Reallowance,
except with the consent of the Manager.

          3.7. RELEASE OF UNSOLD SECURITIES. From time to time prior to the
termination of the applicable AAU, on the request of the Manager, you shall
advise the Manager of the amount of Securities remaining unsold which were
retained by or released to you for direct sale and of the amount of Securities
and Other Securities (as defined below) purchased for your account remaining
unsold which were delivered to you pursuant to Article V hereof or pursuant to
any Intersyndicate Agreement, and, on the request of the Manager, you shall
release to the Manager any such Securities and Other Securities remaining unsold
(i) for sale by the Manager to institutions, Dealers or retail purchasers, (ii)
for sale by the Issuer or Seller pursuant to delayed delivery contracts or (iii)
if, in the Manager's opinion, such Securities or Other Securities are needed to
make delivery against sales made pursuant to Article V hereof or any
Intersyndicate Agreement.

          3.8. INTERNATIONAL OFFERINGS. In the case of an International
Offering, you authorize the Manager (i) to make representations on your behalf
as set forth in any Intersyndicate Agreement or Underwriting Agreement and (ii)
to purchase or sell for your account pursuant to the Intersyndicate Agreement
(a) Securities, (b) any other securities of the same class and series, or any
securities into which the Securities may be converted or for which the
Securities may be exchanged or exercised and (c) any other securities designated
in the applicable AAU or applicable Intersyndicate Agreement (the securities
referred to in clauses (b) and (c) above being referred to collectively as the
"Other Securities").

                         IV. DELAYED DELIVERY CONTRACTS

          4.1. ARRANGEMENTS FOR SALES. You agree that arrangements for sales of
Contract Securities will be made only through the Manager acting either directly
or through Dealers (including Underwriters acting as Dealers), and you authorize
the Manager to act on your behalf in making such arrangements. The aggregate
amount of Securities to be purchased by the several Underwriters shall be
reduced by the respective amounts of Contract Securities attributed to such
Underwriters as hereinafter provided. Subject to the provisions of Section 4.2,
the aggregate amount of Contract Securities shall be attributed to the
Underwriters as nearly as practicable in their respective Underwriting
Percentages, except that, as determined by the Manager in its discretion, (i)
Contract Securities directed and allocated by a purchaser to specific
Underwriters shall be attributed to such Underwriters and (ii) Contract
Securities for which arrangements have been made for sale through Dealers shall
be attributed to each Underwriter approximately in the proportion that
Securities of such Underwriter held by the Manager for sales to Dealers bear to
all Securities so held. The fee with respect to Contract Securities payable to
the Manager for the accounts of the Underwriters pursuant to the Underwriting
Agreement shall be credited to the accounts of the respective Underwriters in
proportion to the Contract Securities attributed to such Underwriters pursuant
to the provisions of this Section 4.1, less, in the case of each

                                        7



Underwriter, the concession to Dealers on Contract Securities sold through
Dealers and attributed to such Underwriter.

          4.2. EXCESS SALES. If the amount of Contract Securities attributable
to an Underwriter pursuant to Section 4.1 would exceed such Underwriter's
Original Purchase Obligation reduced by the amount of Underwriters' Securities
sold by or on behalf of such Underwriter, such excess shall not be attributed to
such Underwriter, and such Underwriter shall be regarded as having acted only as
a Dealer with respect to, and shall receive only the concession to Dealers on,
such excess.

        V. PURCHASE AND SALE OF SECURITIES; FACILITATION OF DISTRIBUTION

          5.1. PURCHASE AND SALE OF SECURITIES; FACILITATION OF DISTRIBUTION. In
order to facilitate the distribution and sale of the Securities, you authorize
the Manager to buy and sell Securities and any Other Securities, in addition to
Securities sold pursuant to Article III hereof, in the open market or otherwise
(including, without limitation, pursuant to any Intersyndicate Agreement), for
long or short account, on such terms as it shall deem advisable, and to
over-allot in arranging sales. Such purchases and sales and over-allotments
shall be made for the accounts of the several Underwriters as nearly as
practicable in their respective Underwriting Percentages or, in the case of an
International Offering, such purchases and sales shall be for such accounts as
set forth in the applicable Intersyndicate Agreement. Any securities which may
have been purchased by the Manager for stabilizing purposes in connection with
the Offering prior to the execution of the applicable AAU shall be treated as
having been purchased pursuant to this Section 5.1 for the accounts of the
several Underwriters or, in the case of an International Offering, for such
accounts as are set forth in the applicable Intersyndicate Agreement. Your net
commitment pursuant to the foregoing authorization shall not exceed at the close
of business on any day an amount equal to 20% of your Underwriting Percentage of
the aggregate initial Offering Price of the Firm Securities, it being understood
that, in calculating such net commitment, the initial Offering Price shall be
used with respect to the Securities so purchased or sold and, in the case of all
Other Securities, shall be the purchase price thereof. Your net commitment for
short account (i.e., "naked short") shall be calculated by assuming that all
Securities that may be purchased upon exercise of any over-allotment option then
exercisable are acquired (whether or not actually acquired) and, in the case of
an International Offering, after giving effect to the purchase of any Securities
or Other Securities that the Manager has agreed to purchase for your account
pursuant to any applicable Intersyndicate Agreement. On demand you shall take up
and pay for any Securities or Other Securities so purchased for your account and
any Securities released to you pursuant to Section 3.7 hereof and you shall
deliver to the Manager against payment any Securities or Other Securities so
sold or over-allotted for your account or released to you. The Manager agrees to
notify you if it engages in any stabilization transaction requiring reports to
be filed pursuant to Rule 17a-2 under the 1934 Act and to notify you of the date
of termination of stabilization. You agree not to stabilize or engage in any
syndicate covering transaction (as defined in Rule 100 of

                                        8



Regulation M under the 1934 Act ("Regulation M")) in connection with the
Offering without the prior consent of the Manager. You further agree to provide
to Salomon Smith Barney any reports required of you pursuant to Rule 17a-2 not
later than the date specified therein and you authorize Salomon Smith Barney to
file on your behalf with the Commission any reports required by such Rule.

          If the limitations of Rule 101 of Regulation M ("Rule 101") do not
apply to you with respect to the Securities, Other Securities or other reference
securities (as defined in Rule 100 of Regulation M) because they satisfy the
exception for actively-traded securities in subsection (c)(1) of Rule 101 or the
exception for Rule 144A securities in subsection (b)(10) of Rule 101, you agree
that promptly upon notice from the Manager (or, if later, at the time stated in
the notice) you will comply with Rule 101 as though such exception were not
available but the other provisions of Rule 101 (as interpreted by the Commission
and after giving effect to any applicable exemptions) did apply. If the
securities in question are NASDAQ securities (as defined in Rule 100 of
Regulation M) you may engage in passive market making in accordance with Rule
103 of Regulation M (except that the daily net purchase volume limitation will
not apply and the maximum displayed bid size shall be 5,000 shares excluding
transactions effected in the SOES system) unless the notice from the Manager
also states that passive market making is not permitted.

          5.2. PENALTY WITH RESPECT TO SECURITIES REPURCHASED BY THE MANAGER. If
pursuant to the provisions of Section 5.1 and prior to the termination of the
Manager's authority to cover any short position incurred under the applicable
AAU or such other date as the Manager shall specify in a Wire, either (A) the
Manager purchases or contracts to purchase for the account of any Underwriter in
the open market or otherwise any Securities which were retained by, or released
to, you for direct sale or any Securities sold pursuant to Section 3.4 for which
you received a portion of the Selling Concession set forth in the applicable
AAU, or any Securities which may have been issued on transfer or in exchange for
such Securities, and which Securities were therefore not effectively placed for
investment or (B) if the Manager has advised you by Wire that trading in the
Securities will be reported to the Manager pursuant to the "Initial Public
Offering Tracking System" of The Depository Trust Company ("DTC") and the
Manager determines, based on notices from DTC, that your customers sold an
amount of Securities during any day that exceeds the amount previously notified
to you by Wire, then you authorize the Manager either to charge your account
with an amount equal to such portion of the Selling Concession set forth in the
applicable AAU received by you with respect to such Securities or, in the case
of clause (B), such Securities as exceed the amount specified in such Wire or to
require you to repurchase such Securities or, in the case of clause (B), such
Securities as exceed the amount specified in such Wire, at a price equal to the
total cost of such purchase, including transfer taxes, accrued interest,
dividends and commissions, if any.

          5.3. COMPLIANCE WITH REGULATION M. You represent that, at all times
since you were invited to participate in the Offering, you have complied with
the provisions of Regulation M applicable to such Offering, in each case as
interpreted by the Commission and after giving effect to any applicable
exemptions. If you have been

                                        9



notified in a Wire that the Underwriters may conduct passive market making in
compliance with Rule 103 of Regulation M in connection with the Offering, you
represent that, at all times since your receipt of such Wire, you have complied
with the provisions of such Rule applicable to such Offering, as interpreted by
the Commission and after giving effect to any applicable exemptions.

          5.4. STANDBY UNDERWRITINGS. You authorize the Manager in its
discretion, at any time on, or from time to time prior to, the expiration of the
conversion right of convertible securities identified in the applicable AAU in
the case of securities called for redemption, or the expiration of rights to
acquire securities in the case of rights offerings, for which, in either case,
standby underwriting arrangements have been made: (i) to purchase convertible
securities or rights to acquire Securities for your account, in the open market
or otherwise, on such terms as the Manager determines and to convert convertible
securities or exercise rights so purchased; and (ii) to offer and sell the
underlying common stock or depositary shares for your account, in the open
market or otherwise, for long or short account (for purposes of such commitment,
such common stock or depositary shares being considered the equivalent of
convertible securities or rights), on such terms consistent with the terms of
the Offering set forth in the Prospectus or Offering Circular as the Manager
determines. On demand you shall take up and pay for any securities so purchased
for your account or you shall deliver to the Manager against payment any
securities so sold, as the case may be. During such period you may offer and
sell the underlying common stock or depositary shares, but only at prices set by
the Manager from time to time, and any such sales shall be subject to the
Manager's right to sell to you the underlying common stock or depositary shares
as above provided and to the Manager's right to reserve your Securities
purchased, received or to be received upon conversion. You agree not to bid for,
purchase, attempt to induce others to purchase, or sell, directly or indirectly,
any convertible securities or rights or underlying common stock or depositary
shares, provided, however, that no Underwriter shall be prohibited from (a)
selling underlying common stock owned beneficially by such Underwriter on the
day the convertible securities were first called for redemption, (b) converting
convertible securities owned beneficially by such Underwriter on such date or
selling underlying common stock issued upon conversion of convertible securities
so owned, (c) exercising rights owned beneficially by such Underwriter on the
record date for a rights offering or selling the underlying common stock or
depositary shares issued upon exercise of rights so owned or (d) purchasing or
selling convertible securities or rights or underlying common stock or
depositary shares as a broker pursuant to unsolicited orders.

                           VI. PAYMENT AND SETTLEMENT

          6.1. PAYMENT AND SETTLEMENT. You shall deliver to the Manager on the
date and at the place and time specified in the applicable AAU (or on such later
date and at such place and time as may be specified by the Manager in a
subsequent Wire) the funds specified in the applicable AAU, payable to the order
of Salomon Smith Barney Inc., for (i) an amount equal to the Offering Price plus
(if not included in the Offering Price) accrued interest, amortization of
original issue discount or dividends, if

                                       10



any, specified in the Prospectus or Offering Circular, less the applicable
Selling Concession in respect of the Firm Securities to be purchased by you,
(ii) an amount equal to the Offering Price plus (if not included in the Offering
Price) accrued interest, amortization of original issue discount or dividends,
if any, specified in the Prospectus or Offering Circular, less the applicable
Selling Concession in respect of such of the Firm Securities to be purchased by
you as shall have been retained by or released to you for direct sale as
contemplated by Section 3.6 hereof or (iii) the amount set forth or indicated in
the applicable AAU, as the Manager shall advise. You shall make similar payment
as the Manager may direct for Additional Securities, if any, to be purchased by
you on the date specified by the Manager for such payment. The Manager will make
payment to the Issuer or Seller against delivery to the Manager for your account
of the Securities to be purchased by you, and the Manager will deliver to you
the Securities paid for by you which shall have been retained by or released to
you for direct sale. If the Manager determines that transactions in the
Securities are to be settled through the facilities of DTC or other
clearinghouse facility, payment for and delivery of Securities purchased by you
shall be made through such facilities, if you are a member, or, if you are not a
member, settlement shall be made through your ordinary correspondent who is a
member.

                                  VII. EXPENSES

          7.1. MANAGEMENT FEE. You authorize the Manager to charge your account
as compensation for the Manager's and Co-Managers' services in connection with
the Offering, including the purchase from the Issuer or Seller of the
Securities, as the case may be, and the management of the Offering, the amount,
if any, set forth as the management fee, global coordinators fee, praecipium or
other similar fee in the applicable AAU. Such amount shall be divided among the
Manager and any Co-Managers named in the applicable AAU as they may determine.

          7.2. GENERAL EXPENSES. You authorize the Manager to charge your
account with your Underwriting Percentage of all expenses of a general nature
incurred by the Manager and Co-Managers under the applicable AAU in connection
with the Offering, including the negotiation and preparation thereof, or in
connection with the purchase, carrying, marketing and sale of any securities
under the applicable AAU and any Intersyndicate Agreement, including, without
limitation, legal fees and expenses, transfer taxes, costs associated with
approval of the Offering by the NASD and the costs of currency transactions
(including forward and hedging currency transactions) entered into to facilitate
settlement of the purchase of Securities permitted under Section 3.1 hereof.

                    VIII. MANAGEMENT OF SECURITIES AND FUNDS

          8.1. ADVANCES; LOANS; PLEDGES. You authorize the Manager to advance
the Manager's own funds for your account, charging current interest rates, or

                                       11



to arrange loans for your account for the purpose of carrying out the provisions
of the applicable AAU and any Intersyndicate Agreement and in connection
therewith, to hold or pledge as security therefor all or any securities which
the Manager may be holding for your account under the applicable AAU and any
Intersyndicate Agreement, to execute and deliver any notes or other instruments
evidencing such advances or loans and to give all instructions to the lenders
with respect to any such loans and the proceeds thereof. The obligations of the
Underwriters under loans arranged on their behalf shall be several in proportion
to their respective Original Purchase Obligations and not joint. Any lender is
authorized to accept the Manager's instructions as to the disposition of the
proceeds of any such loans. In the event of any such advance or loan, repayment
thereof shall, in the discretion of the Manager, be effected prior to making any
remittance or delivery pursuant to Section 8.2, 8.3 or 9.2 hereof.

          8.2. RETURN OF AMOUNT PAID FOR SECURITIES. Out of payment received by
the Manager for Securities sold for your account which have been paid for by
you, the Manager will remit to you promptly an amount equal to the price paid by
you for such Securities.

          8.3. DELIVERY AND REDELIVERY OF SECURITIES FOR CARRYING PURPOSES. The
Manager may deliver to you from time to time prior to the termination of the
applicable AAU pursuant to Section 9.1 hereof against payment, for carrying
purposes only, any Securities or Other Securities purchased by you under the
applicable AAU or any Intersyndicate Agreement which the Manager is holding for
sale for your account but which are not sold and paid for. You shall redeliver
to the Manager against payment any Securities or Other Securities delivered to
you for carrying purposes at such times as the Manager may demand.

                        IX. TERMINATION; INDEMNIFICATION

          9.1. TERMINATION. Each AAU shall terminate at the close of business on
the later of the date on which the Underwriters pay the Issuer or Seller for the
Securities and 45 full days after the applicable Offering Date, unless sooner
terminated by the Manager. The Manager may in its discretion by notice to you
prior to the termination of such AAU alter any of the terms or conditions of the
Offering to the extent permitted by Articles III or IV hereof, or terminate or
suspend the effectiveness of Article V hereof, or any part thereof. No
termination or suspension pursuant to this paragraph shall affect the Manager's
authority under Section 3.1 hereof to take actions in respect of the Offering or
under Article V hereof to cover any short position incurred under such AAU or in
connection with covering any such short position to require you to repurchase
Securities as specified in Section 5.2 hereof.

          9.2. DELIVERY OR SALE OF SECURITIES; SETTLEMENT OF ACCOUNTS. Upon
termination of each AAU or prior thereto at the Manager's discretion, the
Manager shall deliver to you any Securities paid for by you pursuant to Section
6.1 hereof and held by the Manager for sale pursuant to Section 3.4 or 3.5
hereof but not sold and paid for and any Securities or Other Securities that are
held by the Manager for your account

                                       12



pursuant to the provisions of Article V hereof or any Intersyndicate Agreement.
Notwithstanding the foregoing, at the termination of such AAU, if the aggregate
initial Offering Price of any such Securities and the aggregate purchase price
of any Other Securities so held and not sold and paid for does not exceed an
amount equal to 20% of the aggregate initial Offering Price of the Securities,
the Manager may, in its discretion, sell such Securities and Other Securities
for the accounts of the several Underwriters, at such prices, on such terms, at
such times and in such manner as it may determine. Within the period specified
by applicable NASD Rules or, if no period is so specified, as soon as
practicable after termination of such AAU, your account shall be settled and
paid. The Manager may reserve from distribution such amount as the Manager deems
advisable to cover possible additional expenses. The determination by the
Manager of the amount so to be paid to or by you shall be final and conclusive.
Any of your funds in the Manager's hands may be held with the Manager's general
funds without accountability for interest

          Notwithstanding any provision of this Master AAU other than Section
10.12, upon termination of each AAU or prior thereto at the Manager's
discretion, the Manager (i) may allocate to the accounts of the Underwriters the
expenses described in Section 7.2 hereof and any losses incurred upon the sale
of Securities or Other Securities pursuant to the applicable AAU or any
Intersyndicate Agreement (including any losses incurred upon the sale of
securities referred to in Section 5.4(ii) hereof), (ii) may deliver to the
Underwriters any unsold Securities or Other Securities purchased pursuant to
Section 5.1 hereof or any Intersyndicate Agreement and (iii) may deliver to the
Underwriters any unsold Securities purchased pursuant to the applicable
Underwriting Agreement, in each case in the Manager's discretion. The Manager
shall have full discretion to allocate expenses and Securities to the accounts
of any Underwriter as the Manager decides, except that (a) no Underwriter (other
than the Manager or a Co-Manager) shall bear more than its share of such
expenses, losses or Securities (such share shall not exceed such Underwriter's
Underwriting Percentage and shall be determined pro rata among all such
Underwriters based on their Underwriting Percentages), (b) no such Underwriter
shall receive Securities that, together with any Securities purchased by such
Underwriter pursuant to Section 6.1 (but excluding any Securities that such
Underwriter is required to repurchase pursuant to Section 5.2) exceed such
Underwriter's Original Purchase Obligation and (c) no Co-Manager shall bear more
than its share, as among the Manager and the other Co-Managers, of such
expenses, losses or Securities (such share to be determined pro rata among the
Manager and all Co-Managers based on (1) their relative Underwriting Percentages
as a percentage of the total combined Underwriting Percentages of the Manager
and all Co-Managers, or (2) if the Manager so determines, their relative
Offering Economics (as hereinafter defined) as a percentage of the combined
Offering Economics of the Manager and all Co-Managers together. The Manager's or
a Co-Manager's "Offering Economics" equals the sum of its Management Fee Share,
its Underwriting Fee Share and its Selling Concession Share (each as hereinafter
defined). The Manager's or a Co-Manager's "Management Fee Share" is the dollar
amount of its share, as agreed among the Manager and any Co-Managers, of the
amount payable by all Underwriters to some or all of the Manager and any
Co-Manager as a global coordinators' fee, praecipium, management fee or other
fee. The

                                       13



Manager's or a Co-Manager's "Underwriting Fee Share" is the dollar amount of its
Underwriting Percentage of the aggregate initial Offering Price of the Firm
Securities less the Purchase Price thereof, less the Selling Concession thereon.
The Manager's or a Co-Manager's "Selling Concession Share" is the dollar amount
of any Selling Concession credited to it on sales from the institutional pot or
on sales made for the account of any other Underwriter. If any Securities or
Other Securities returned to you pursuant to clause (ii) or (iii) above were not
paid for by you pursuant to Section 6.1 hereof, you shall pay to the Manager an
amount per security equal to the amount set forth in Section 6.1(i), in the case
of Securities returned to you pursuant to clause (iii) above, or the purchase
price of such securities, in the case of Securities or Other Securities returned
to you pursuant to clause (ii) above.

          9.3. POST-SETTLEMENT EXPENSES. Notwithstanding any settlement on the
termination of the applicable AAU, you agree to pay any transfer taxes which may
be assessed and paid after such settlement on account of any sales or transfers
under such AAU or any Intersyndicate Agreement for your account and your
Underwriting Percentage of (i) all expenses incurred by the Manager in
investigating, preparing to defend or defending against any action, claim or
proceeding which is asserted or instituted by any party (including any
governmental or regulatory body) relating to (a) the Registration Statement, any
Preliminary Prospectus or Prospectus (or any amendment or supplement thereto),
any Preliminary Offering Circular or Offering Circular (or any amendment or
supplement thereto) or Supplemental Offering Materials, (b) the violation of any
applicable restrictions on the offer, sale, resale or purchase of Securities or
Other Securities imposed by United States Federal or state laws or foreign laws
and the rules and regulations of any regulatory body promulgated thereunder or
pursuant to the terms of such AAU, the Underwriting Agreement or any
Intersyndicate Agreement or (c) any claim that the Underwriters constitute a
partnership, an association or an unincorporated business or other separate
entity and (ii) any liability, including attorneys' fees, incurred by the
Manager in respect of any such action, claim or proceeding, whether such
liability shall be the result of a judgment or arbitrator's determination or as
a result of any settlement agreed to by the Manager, other than any such expense
or liability as to which the Manager actually receives indemnity pursuant to
Section 9.4, contribution pursuant to Section 9.5, indemnity or contribution
pursuant to the Underwriting Agreement or damages from an Underwriter for breach
of its representations, warranties, agreements, or covenants contained in the
applicable AAU. None of the foregoing provisions of this Section 9.3 shall
relieve any defaulting or breaching Underwriter from liability for its defaults
or breach.

          9.4. INDEMNIFICATION. You agree to indemnify and hold harmless each
other Underwriter and each person, if any, who controls any such Underwriter
within the meaning of either Section 15 of the 1933 Act or Section 20 of the
1934 Act, to the extent and upon the terms which you agree to indemnify and hold
harmless any of the Issuer, the Guarantor, the Seller, any person controlling
the Issuer, the Guarantor, the Seller, its directors and, in the case of a
Registered Offering, its officers who signed the Registration Statement and, in
the case of an Offering other than a Registered Offering, its officers, in each
case as set forth in the Underwriting Agreement. You further agree to indemnify
and hold harmless any investment banking firm identified in

                                       14



a Wire as the qualified independent underwriter as defined in Rule 2720 of the
NASD's Conduct Rules ("QIU") for an Offering and each person, if any, who
controls such QIU within the meaning of either Section 15 of the 1933 Act or
Section 20 of the 1934 Act, from and against any and all losses, claims, damages
and liabilities related to, arising out of or in connection with such investment
banking firm's activities as QIU for the Offering. You agree with the other
Underwriters to reimburse such QIU for all expenses, including fees and expenses
of counsel as they are incurred, in connection with investigating, preparing
for, or defending any action, claim or proceeding related to, arising out of, or
in connection with such QIU's activities as a QIU for the Offering. Each
Underwriter shall be responsible for its Underwriting Percentage of any amount
due to such QIU on account of the foregoing indemnity. You agree that such QIU
shall have no additional liability to any Underwriter or otherwise as a result
of its serving as QIU in connection with the Offering. You further agree that to
the extent the indemnification provided to a QIU under this Section 9.4 is
unavailable to such QIU or insufficient in respect of any losses, claims,
damages or liabilities (and expenses relating thereto), whether as a matter of
law or public policy or as a result of the default of any Underwriter in
performing its obligations under this Section 9.4, you and each other
Underwriter shall contribute to the amount paid or payable by such QIU as a
result of such losses, claims, damages or liabilities (and expenses relating
thereto) in proportion to your Underwriting Percentage.

          9.5. CONTRIBUTION. Notwithstanding any settlement on the termination
of the applicable AAU, you agree to pay upon request of the Manager, as
contribution, your Underwriting Percentage of any losses, claims, damages or
liabilities, joint or several, paid or incurred by any Underwriter to any person
other than an Underwriter, arising out of or based upon any untrue statement or
alleged untrue statement of a material fact contained in the Registration
Statement, any Preliminary Prospectus or Prospectus (or any amendment or
supplement thereto), any Preliminary Offering Circular or Offering Circular (or
any amendment or supplement thereto) or Supplemental Offering Materials or 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 (other
than an untrue statement or alleged untrue statement or omission or alleged
omission made in reliance upon and in conformity with information furnished to
the Company in writing by the Underwriter on whose behalf the request for
contribution is being made expressly for use therein) and your Underwriting
Percentage of any legal or other expenses reasonably incurred by the Underwriter
(with the approval of the Manager) on whose behalf the request for contribution
is being made in connection with investigating or defending any such loss,
claim, damage or liability or any action in respect thereof; provided that no
request shall be made on behalf of any Underwriter guilty of fraudulent
misrepresentation (within the meaning of Section 11(f) of the 1933 Act) from any
Underwriter who was not guilty of such fraudulent misrepresentation. None of the
foregoing provisions of this Section 9.5 shall relieve any defaulting or
breaching Underwriter from liability for its defaults or breach.

          9.6. SEPARATE COUNSEL. If any claim is asserted or action or
proceeding commenced pursuant to which the indemnity provided in Section 9.4 may
apply, the Manager may take such action in connection therewith as it deems

                                       15



necessary or desirable, including retention of counsel for the Underwriters, and
in its discretion separate counsel for any particular Underwriter or group of
Underwriters, and the fees and disbursements of any counsel so retained shall be
allocated among the several Underwriters as determined by the Manager. Any
Underwriter may elect to retain at its own expense its own counsel and, on
advice of such counsel but only with the consent of the Manager, may settle or
consent to the settlement of any such claim, action or proceeding. The Manager
may settle or consent to the settlement of any such claim, action or proceeding.
Whenever the Manager receives notice of the assertion of any claim, action or
proceeding to which the provisions of Section 9.4 would apply, it will give
prompt notice thereof to each Underwriter, and whenever you receive notice of
the assertion of any claim or commencement of any action or proceeding to which
the provisions of Section 9.4 would apply, you will give prompt notice thereof
to the Manager. The Manager also will furnish each Underwriter with periodic
reports, at such times as it deems appropriate, as to the status of such claim,
action or proceeding, and the action taken by it in connection therewith.

          9.7. SURVIVAL OF AGREEMENTS. Regardless of any termination of an AAU,
your agreements contained in Article V and Sections 3.1, 9.3, 9.4, 9.5, 9.6 and
11.2 shall remain operative and in full force and effect regardless of (i) any
termination of the Underwriting Agreement, (ii) any investigation made by or on
behalf of any Underwriter or any person controlling any Underwriter or by or on
behalf of the Issuer, the Guarantor, the Seller, its directors or officers or
any person controlling the Issuer, the Guarantor or the Seller and (iii)
acceptance of any payment for any Securities.

                X. REPRESENTATIONS AND COVENANTS OF UNDERWRITERS

          10.1. KNOWLEDGE OF OFFERING. You understand that it is your
responsibility to examine the Registration Statement, the Prospectus or the
Offering Circular, as the case may be, relating to the Offering, any amendment
or supplement thereto, any Preliminary Prospectus or Preliminary Offering
Circular and the material, if any, incorporated by reference therein and any
Supplemental Offering Materials and you will familiarize yourself with the terms
of the Securities, any applicable Indenture and the other terms of the Offering
thereof which are to be reflected in the Prospectus or the Offering Circular, as
the case may be, and the applicable AAU and Underwriting Agreement. The Manager
is authorized, with the advice of counsel for the Underwriters, to approve on
your behalf any amendments or supplements to the Registration Statement and the
Prospectus or the Offering Circular, as the case may be.

          10.2. DISTRIBUTION OF MATERIALS. You will keep an accurate record of
the names and addresses of all persons to whom you give copies of the
Registration Statement, the Prospectus, any Preliminary Prospectus (or any
amendment or supplement thereto) or any Offering Circular or any Preliminary
Offering Circular and, when furnished with any subsequent amendment to the
Registration Statement, any subsequent Prospectus, any subsequent Offering
Circular or any memorandum outlining changes in the Registration Statement or
any Prospectus or Offering Circular,

                                       16



you will, upon request of the Manager, promptly forward copies thereof to such
persons.

          10.3. ACCURACY OF UNDERWRITERS' INFORMATION. You confirm that the
information that you have given or are deemed to have given in response to the
Underwriters' Questionnaire attached as Exhibit A hereto (and to any other
questions addressed to you in the Invitation Wire or other Wires), which
information has been furnished to the Issuer for use in the Registration
Statement and the Prospectus or the Offering Circular, as the case may be, or
has otherwise been relied upon in connection with the Offering, is complete and
accurate. You shall notify the Manager immediately of any development before the
termination of the applicable AAU which makes untrue or incomplete any
information that you have given or are deemed to have given in response to the
Underwriters' Questionnaire (or such other questions).

          10.4. NAME; ADDRESS. Unless you have promptly notified the Manager in
writing otherwise, your name as it should appear in the Prospectus or the
Offering Circular and any advertisement, if different, and your address are as
set forth on the signature pages hereof.

          10.5. CAPITAL REQUIREMENTS. You represent that your commitment to
purchase the Securities will not result in a violation of the financial
responsibility requirements of Rule 15c3-1 under the 1934 Act or of any similar
provision of any applicable rules of any securities exchange to which you are
subject or, if you are a financial institution subject to regulation by the
Board of Governors of the United States Federal Reserve System, the United
States Comptroller of the Currency or the United States Federal Deposit
Insurance Corporation, will not place you in violation of any applicable capital
requirements or restrictions of such regulator or any other regulator to which
you are subject.

          10.6. COMPLIANCE WITH NASD REQUIREMENTS. You represent that you are a
member in good standing of the NASD, a Bank that is not a member of the NASD or
a foreign bank or dealer not eligible for membership in the NASD. In making
sales of Securities, if you are such a member, you agree to comply with all
applicable interpretive material ("IM") and rules of the NASD, including,
without limitation, IM-2110-1 (the NASD's interpretation with respect to
free-riding and withholding) and Rule 2740 of the NASD's Conduct Rules, or, if
you are such a foreign bank or dealer, you agree to comply, as applicable, with
IM-2110-1 and Rules 2730, 2740 and 2750 of the NASD's Conduct Rules as though
you were such a member and Rule 2420 of the NASD's Conduct Rules as it applies
to a nonmember broker or dealer in a foreign country. If you are a Bank, you
agree, to the extent required by applicable law or the Conduct Rules of the
NASD, that you will not, in connection with the public offering of any
Securities that do not constitute "exempted securities" within the meaning of
Section 3(a)(12) of the 1934 Act or such other Securities as from time to time
may be sold by a Bank, purchase any Securities at a discount from the Offering
Price from any Underwriter or dealer or otherwise accept any Fees and
Commissions from any Underwriter or Dealer, and you agree to comply, as
applicable, with Rule 2420 of the NASD's Conduct Rules as though you were a
member.

                                       17



          10.7. FURTHER STATE NOTICE. The Manager will file a Further State
Notice with the Department of State of New York, if required.

          10.8. COMPLIANCE WITH RULE 15C2-8. In the case of a Registered
Offering and any other Offering to which the provisions of Rule 15c2-8 under the
1934 Act are made applicable pursuant to the AAU or otherwise, you agree to
comply with such Rule in connection with the Offering. In the case of an
Offering other than a Registered Offering, you agree to comply with applicable
Federal and state laws and the applicable rules and regulations of any
regulatory body promulgated thereunder governing the use and distribution of
offering circulars by underwriters.

          10.9. DISCRETIONARY ACCOUNTS. In the case of a Registered Offering of
Securities issued by an Issuer that was not, immediately prior to the filing of
the Registration Statement, subject to the requirements of Section 13(d) or
15(d) of the 1934 Act, you agree that you will not make sales to any account
over which you exercise discretionary authority in connection with such sale
except as otherwise permitted by the applicable AAU for such Offering.

          10.10. OFFERING RESTRICTIONS. If you are a foreign bank or dealer and
you are not registered as a broker-dealer under Section 15 of the 1934 Act, you
agree that while you are acting as an Underwriter in respect of the Securities
and in any event during the term of the applicable AAU, you will not directly or
indirectly effect in, or with persons who are nationals or residents of, the
United States, its territories or possessions any transactions (except for the
purchases provided for in the Underwriting Agreement and transactions
contemplated by Articles III and V hereof) in Securities or any Other
Securities.

          It is understood that, except as specified in the applicable AAU, no
action has been taken by the Manager, the Issuer, the Guarantor or the Seller to
permit you to offer Securities in any jurisdiction other than the United States,
in the case of a Registered Offering, where action would be required for such
purpose.

          10.11. REPRESENTATIONS, WARRANTIES AND AGREEMENTS. You agree to make
to each other Underwriter participating in an Offering the same representations,
warranties and agreements, if any, made by the Underwriters to the Issuer, the
Guarantor or the Seller in the applicable Underwriting Agreement or any
Intersyndicate Agreement and you authorize the Manager to make such
representations, warranties and agreements to the Issuer, the Guarantor or the
Seller on your behalf.

          10.12. LIMITATION ON THE AUTHORITY OF THE MANAGER TO PURCHASE AND SELL
SECURITIES FOR THE ACCOUNT OF CERTAIN UNDERWRITERS. Notwithstanding any
provision of this AAU authorizing the Manager to purchase or sell any Securities
or Other Securities (including arranging for the sale of Contract Securities) or
over-allot in arranging sales of Securities for the accounts of the several
Underwriters, the Manager may not, in connection with the Offering of any
Securities, make any such purchases, sales and/or over-allotments for the
account of any Underwriter that, not later than its

                                       18



acceptance of the Invitation Wire relating to such Offering, has advised the
Manager that, due to its status as, or relationship to, a bank or bank holding
company such purchases, sales and/or over-allotments are prohibited by
applicable law. If any Underwriter so advises the Manager, the Manager may
allocate any such purchases, sales and over-allotments (and the related
expenses) which otherwise would have been allocated to your account based on
your respective Underwriting Percentage to your account based on the ratio of
your Original Purchase Obligation to the Original Purchase Obligations of all
Underwriters other than the advising Underwriter or Underwriters or in such
other manner as the Manager shall determine.

                           XI. DEFAULTING UNDERWRITERS

          11.1. EFFECT OF TERMINATION. If the Underwriting Agreement is
terminated as permitted by the terms thereof, your obligations hereunder with
respect to the Offering of the Securities shall immediately terminate except (i)
as set forth in Section 9.7, (ii) that you shall remain liable for your
Underwriting Percentage (or such other percentage as may be specified pursuant
to Section 9.2) of all expenses and for any purchases or sales which may have
been made for your account pursuant to the provisions of Article V hereof or any
Intersyndicate Agreement and (iii) that such termination shall not affect any
obligations of any defaulting or breaching Underwriter.

          11.2. SHARING OF LIABILITY. If any Underwriter shall default in its
obligations (i) pursuant to Section 5.1, 5.2 or 5.4, (ii) to pay amounts charged
to its account pursuant to Section 7.1, 7.2 or 8.1 or (iii) pursuant to Section
9.2, 9.3, 9.4, 9.5, 9.6 or 11.1, you will assume your proportionate share
(determined on the basis of the respective Underwriting Percentages of the
non-defaulting Underwriters) of such obligations, but no such assumption shall
relieve any defaulting Underwriter from liability to the non-defaulting
Underwriters, the Issuer, the Guarantor or the Seller for its default.

          11.3. ARRANGEMENTS FOR PURCHASES. The Manager is authorized to arrange
for the purchase by others (including the Manager or any other Underwriter) of
any Securities not purchased by any defaulting Underwriter in accordance with
the terms of the applicable Underwriting Agreement or, if the applicable
Underwriting Agreement does not provide arrangements for defaulting
Underwriters, in the discretion of the Manager. If such arrangements are made,
the respective amounts of Securities to be purchased by the remaining
Underwriters and such other person or persons, if any, shall be taken as the
basis for all rights and obligations hereunder, but this shall not relieve any
defaulting Underwriter from liability for its default.

                                       19



                               XII. MISCELLANEOUS

          12.1. OBLIGATIONS SEVERAL. Nothing contained in this Salomon Smith
Barney Master AAU or any AAU constitutes you partners with the Manager or with
the other Underwriters and the obligations of you and each of the other
Underwriters are several and not joint. Each Underwriter elects to be excluded
from the application of Subchapter K, Chapter 1, Subtitle A, of the United
States Internal Revenue Code of 1986, as amended. Each Underwriter authorizes
the Manager, on behalf of such Underwriter, to execute such evidence of such
election as may be required by the United States Internal Revenue Service.

          12.2. LIABILITY OF MANAGER. The Manager shall be under no liability to
you for any act or omission except for obligations expressly assumed by the
Manager in the applicable AAU.

          12.3. TERMINATION OF MASTER AGREEMENT AMONG UNDERWRITERS. This Salomon
Smith Barney Master AAU may be terminated by either party hereto upon five
business days' written notice to the other party; provided that with respect to
any Offering for which an AAU was sent prior to such notice, this Salomon Smith
Barney Master AAU as it applies to such Offering shall remain in full force and
effect and shall terminate with respect to such Offering in accordance with
Section 9.1 hereof.

          12.4. GOVERNING LAW. This Salomon Smith Barney Master AAU and each AAU
shall be governed by and construed in accordance with the laws of the State of
New York applicable to contracts made and to be performed in the State of New
York.

          12.5. AMENDMENTS. This Salomon Smith Barney Master AAU may be amended
from time to time by consent of the parties hereto. Your consent shall be deemed
to have been given to an amendment to this Salomon Smith Barney Master AAU, and
such amendment shall be effective, five business days following written notice
to you of such amendment if you do not notify Salomon Smith Barney in writing
prior to the close of business on such fifth business day that you do not
consent to such amendment. Upon effectiveness, the provisions of this Salomon
Smith Barney Master AAU as so amended shall apply to each AAU thereafter entered
into except as otherwise specifically provided in any such AAU.

          12.6. NOTICES. Any notice to any Underwriter shall be deemed to have
been duly given if mailed, sent by wire, telex, facsimile or electronic
transmission or other written communication or delivered in person to such
Underwriter at the address which shall have been provided to Salomon Smith
Barney as provided in Section 10.4 hereof. Any such notice shall take effect
upon receipt thereof.

          Please confirm your acceptance of this Salomon Smith Barney Master AAU
by signing and returning to us the enclosed duplicate copy hereof.

                                       20



                                                   Very truly yours,

                                                   Salomon Smith Barney Inc.


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


CONFIRMED:_________________________________1999

_______________________________________________
             (Name of Underwriter)

By:
   --------------------------------------------
Name:
Title:
     (If person signing is not an officer or a partner,
      please attach instrument of authorization)

Address: _______________________________

         _______________________________

         _______________________________


Telephone: _____________________________

Fax: ___________________________________

                                       21



                                                                       EXHIBIT A
                                                                    June 1, 1999

                            SALOMON SMITH BARNEY INC.
                           UNDERWRITERS' QUESTIONNAIRE

          In connection with each Offering covered by the Salomon Smith Barney
Inc. Master Agreement Among Underwriters dated June 1, 1999, we confirm that
except as set forth in a timely reply by us to the Invitation Wire:

          (1)  Neither we nor any of our directors, officers or partners have a
     material relationship (as "material" is defined in Regulation C under the
     1933 Act) with the Issuer, the Guarantor or any Seller.

          (2)  (If the offer and sale of the Securities are to be registered
     under the 1933 Act pursuant to a Registration Statement on Form S-1 of Form
     F-1:) Neither we nor any "group" (as that term is used in Section 13(d)(3)
     of the Securities Exchange Act of 1934, as amended (the "Exchange Act")) of
     which we are a member is the beneficial owner (determined in accordance
     with Rule 13d-3 under the Exchange Act) of more than 5% of any class of
     voting securities of the Issuer or the Guarantor, nor do we have any
     knowledge that more than 5% of any class of voting securities of the Issuer
     or the Guarantor is held or to be held subject to any voting trust or other
     similar agreement.

          (3)  Other than as may be stated in the Salomon Smith Barney Master
     Agreement Among Underwriters dated June 1, 1999, the applicable AAU, the
     Intersyndicate Agreement or dealer agreement, if any, the Prospectus, the
     Registration Statement or the Offering Circular, we do not know and have no
     reason to believe that there is an intention to over-allot or that the
     price of any security may be stabilized to facilitate the offering of the
     Securities.

          (4)  Except as described in the Prospectus or Offering Circular, as
     the case may, be and the Invitation Wire, we do not know of any discounts
     or commissions to be allowed or paid to dealers, including all cash,
     securities, contracts or other consideration to be received by any dealer
     in connection with the sale of the securities.

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          (5)  We have not prepared any report or memorandum for external use in
     connection with the Offering. (If there are any exceptions, (i) furnish
     four (4) copies of each report and memorandum to Salomon Smith Barney Inc.,
     388 Greenwich Street, New York, N.Y. 10013, Attention: Investment Banking
     Department/Transaction Structuring Group, (ii) identify each class of
     person who received such material and the number of copies distributed to
     each such class, and (iii) indicate when such distribution commenced and
     ceased.)

          (6)  (If the offer and sale of the Securities are to be registered
     under the 1933 Act pursuant to a Registration Statement on Form S-1 or Form
     F-1:) We have not within the past twelve months prepared or had prepared
     for us any engineering, management or similar report or memorandum relating
     to broad aspects of the business, operations or products of the Issuer or
     the Guarantor. (The immediately preceding sentence does not apply to
     reports solely comprised of recommendations to buy, sell or hold the
     Issuer's or the Guarantor's securities, unless such recommendations have
     changed within the past six months or to information already contained in
     documents filed with the Commission. If there are any exceptions, (i)
     furnish four (4) copies of each report and memorandum to Salomon Smith
     Barney Inc. 388 Greenwich Street, New York, N.Y. 10013, Attention:
     Investment Banking Department/Transaction Structuring Group, (ii) identify
     each class of persons who received such material and the number of copies
     distributed to each such class, and (iii) indicate when such distribution
     commenced and ceased.)

          (7)  We are not an "affiliate" of the Issuer or the Guarantor for
     purposes of Rule 2720 of the National Association of Securities Dealers,
     Inc.'s ("NASD") Conduct Rules. We understand that under Rule 2720 (except
     as provided in Rule 2720(b)(1)(C) thereof) two entities are "affiliates" of
     each other if one entity controls, is controlled by, or is under common
     control with, the second entity and that "control" is presumed to exist if
     one entity (or, in the case of an NASD member, the entity and all "persons
     associated with" it (as defined in the NASD By-Laws)) beneficially owns 10%
     or more of the second entity's outstanding voting securities or, if the
     second entity is a partnership, if the first entity has a partnership
     interest in 10% or more of the second entity's distributable profits or
     losses.

          (8)  (If the Securities are not investment grade debt securities or
     preferred stock, or equity securities for which there exists a "bona fide
     independent market" (as defined in Rule 2720(b)(3) of the NASD's Conduct
     Rules) or otherwise exempted under Rule 2720(b)(7)(D) of the NASD's Conduct
     Rules:) We do not have a "conflict of interest" with the Issuer or the
     Guarantor under Rule 2720 of the NASD's Conduct Rules. In that regard, we
     specifically confirm that we, our "parent" (as defined in Rule 2720),
     affiliates and "persons associated with" us (as defined in the NASD
     By-Laws), in the aggregate do not (i) beneficially own 10% or more of the
     Issuer's or the Guarantor's "common equity", "preferred equity", or
     "subordinated debt" (as each such term is defined in Rule 2720), or (ii) in
     the case of an Issuer or Guarantor which is a partnership,

                                       23



     beneficially own a general, limited or special partnership interest in 10%
     or more of the Issuer's or Guarantor's distributable profits or losses.

          (9)  (If filing with the NASD is required:) Neither we nor any of our
     directors, officers, partners or "persons associated with" us (as defined
     in the NASD By-Laws) nor, to our knowledge, any "related person" (defined
     by the NASD to include counsel, financial consultants and advisors,
     finders, members of the selling or distribution group, any NASD member
     participating in the offering and any other persons associated with or
     related to and members of the immediate family of any of the foregoing) or
     any other broker-dealer, (a) within the last 12 months have purchased in
     private transactions, or intend before, at or within six months after the
     commencement of the public offering of the Securities to purchase in
     private transactions, any securities of the Issuer, the Guarantor or any
     Issuer Related Party (as hereinafter defined), (b) within the last 12
     months had any dealings with the Issuer, the Guarantor, any Seller or any
     subsidiary or controlling person thereof (other than relating to the
     proposed Underwriting Agreement) as to which documents or information are
     required to be filed with the NASD pursuant to its Corporate Financing
     Rule, or (c) during the 12 months immediately preceding the filing of the
     Registration Statement (or, if there is none, the Offering Circular), have
     entered into any arrangement which provided or provides for the receipt of
     any item of value (including, but not limited to, cash payments and expense
     reimbursements) and/or the transfer of any warrants, options or other
     securities from the Issuer, the Guarantor or any Issuer Related Party to us
     or any related person.

          (10) (If filing with the NASD is required:) There is no association or
     affiliation between us and (i) any officer or director of the Issuer, the
     Guarantor or any Issuer Related Party, or (ii) any securityholder of five
     percent or more (or, in the case of an initial public offering of equity
     securities, any securityholder) of any class of securities of the Issuer,
     the Guarantor or an Issuer Related Party; it being understood that for
     purposes of paragraph (9) above and this paragraph (10), the term "Issuer
     Related Party" includes any Seller, any affiliate of the Issuer the
     Guarantor or a Seller and the officers or general partners, directors,
     employees and securityholders thereof. (If there are any exceptions, state
     the identity of the person with whom the association or affiliation exists
     and, if relevant, the number of equity securities or the face value of debt
     securities owned by such person, the date such securities were acquired and
     the price paid for such securities).

          (11) (If the Securities are not issued by a real estate investment
     trust:) No portion of the net offering proceeds from the sale of the
     Securities will be paid to us or any of our affiliates or "persons
     associated with" us (as defined in the NASD By-Laws) or members of the
     immediate family of any such person.

          (12) (If the Securities are debt securities and their offer and sale
     is to be registered under the 1933 Act:) We are not an affiliate (as
     defined in Rule 0-2 under the Trust Indenture Act of 1939) of the Trustee
     for the Securities or of

                                       24



     its parent, if any. Neither the Trustee nor its parent, if any, nor any of
     their directors or executive officers is a "director, officer, partner,
     employee, appointee or representative" of ours (as those terms are defined
     in the Trust Indenture Act of 1939 or in the relevant instructions to Form
     T-1). We and our directors, partners, and executive officers, taken as a
     group, did not on the date specified in the Invitation Wire, and do not,
     own beneficially 1% or more of the shares of any class of voting securities
     of the Trustee or of its parent, if any. If we are a corporation, we do not
     have outstanding and have not assumed or guaranteed any securities issued
     otherwise than in our present corporate name.

          (13) (If the Issuer is a public utility:) We are not a "holding
     company" or a "subsidiary company" or an "affiliate" of a "holding company"
     or of a "public-utility company", each as defined in the Public Utility
     Holding Company Act of 1935.

          (14) If we are, or we are affiliated with, a U.S. or non-U.S. bank, we
     hereby represent that our participation in the offering of the Securities
     on the terms contemplated in the applicable AAU and the proposed
     Underwriting Agreement does not contravene any U.S. or state banking law
     restricting the exercise of securities powers in the United States.

          Capitalized terms used but not defined herein shall have the
respective meanings given to them in the applicable AAU.

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