HOSPITALITY PROPERTIES TRUST
S-3, 1997-12-31
REAL ESTATE INVESTMENT TRUSTS
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    As filed with the Securities and Exchange Commission on December 31, 1997
                                                  Registration No. 333-_____

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                             -----------------------


                                    FORM S-3

             REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
                             -----------------------

                          HOSPITALITY PROPERTIES TRUST
             (Exact name of registrant as specified in its charter)
                             -----------------------
           Maryland                                 04-3262075
(State or other jurisdiction of         (I.R.S. Employer Identification Number)
incorporation or organization)
                                400 Centre Street
                           Newton, Massachusetts 02158
                                 (617) 964-8389
       (Address, including zip code, and telephone number, including area
               code, of registrant's principal executive offices)
                              ---------------------

                            John G. Murray, President
                          Hospitality Properties Trust
                                400 Centre Street
                           Newton, Massachusetts 02158
                                 (617) 964-8389
         (Name, address, including zip code, telephone number, including
                        area code, of agent for service)
                              ---------------------

                                    Copy to:
                       Alexander A. Notopoulos, Jr., Esq.
                            Sullivan & Worcester LLP
                             One Post Office Square
                           Boston, Massachusetts 02109
                                 (617) 338-2800
                              ---------------------

         Approximate  date of commencement of proposed sale to the public:  From
time  to  time or at one  time  after  the  effective  date of the  Registration
Statement as determined by the Registrant.
         If the only securities  being registered on this Form are being offered
pursuant to dividend or interest  reinvestment plans, please check the following
box. |_|
         If any of the  securities  being  registered  on  this  Form  are to be
offered  on a  delayed  or  continuous  basis  pursuant  to Rule 415  under  the
Securities Act of 1933, check the following box. |X|
         If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the  Securities  Act,  check the following box and
list the Securities Act registration  statement number of the earlier  effective
registration statement for the same offering. |_| _____________
         If this  Form is a  post-effective  amendment  filed  pursuant  to Rule
462(c) under the Securities Act, check the following box and list the Securities
Act  registration   statement  number  of  the  earlier  effective  registration
statement for the same offering. |_| _____________
         If delivery of the  prospectus  is expected to be made pursuant to Rule
434, please check the following box. |_|
                             -----------------------
<TABLE>
<CAPTION>
                                                      CALCULATION OF REGISTRATION FEE
                                                                       Proposed Maximum
                                                        Amount to       Offering Price       Proposed Maximum         Amount of
Title of Each Class of Securities to be Registered(1) be Registered     Per Unit(2)(3)     Offering Price(4)(5)  Registration Fee(4)
<S>                                                  <C>              <C>                 <C>                   <C>
Debt Securities (6) ............................
Preferred Shares of Beneficial Interest, without par
value...........................................
Depositary Shares Representing Preferred Shares.
Common Shares of Beneficial Interest, par value
$.01 per share (7) .............................
Warrants........................................
Total                                                $1,956,262,500                           $1,956,262,500      $577,097.44(8)(9)
                                                                                                        (Footnotes on next page)
         The Registrant hereby amends this  Registration  Statement on such date
or dates as may be necessary to delay its  effective  date until the  Registrant
shall file a further amendment which specifically  states that this Registration
Statement shall  thereafter  become effective in accordance with Section 8(a) of
the Securities  Act of 1933 or until this  Registration  Statement  shall become
effective on such date as the Commission,  acting pursuant to said Section 8(a),
may determine.
<PAGE>
<FN>
(1)      The Debt  Securities,  Preferred  Shares,  Depositary  Shares,  Common Shares and/or Warrants  (collectively,  the "Offered
         Securities")  covered hereby.  Offered Securities  registered  hereunder may be sold separately,  together or as units with
         other  Offered  Securities  registered  hereunder.  Subject  to  Footnote  (4),  there are being  registered  hereunder  an
         indeterminate  principal amount of Debt Securities,  Preferred Shares (and Depositary Shares with respect thereto),  Common
         Shares and Warrants as may be sold from time to time by the Registrant.  This Registration  Statement also covers contracts
         that may be issued by the Registrant under which the  counterparty  may be required to purchase Debt Securities,  Preferred
         Shares,  Depositary  Shares,  Common Shares or Warrants.  Such contracts  would be issued with Debt  Securities,  Preferred
         Shares,  Depositary Shares, Common Shares or Warrants. There are also being registered hereunder an indeterminate principal
         amount of Debt  Securities,  Preferred  Shares,  Depositary  Shares,  Common  Shares and  Warrants as may be issuable  upon
         conversion or exchange of Debt Securities, Preferred Shares or Warrants or pursuant to antidilution provisions thereof.

(2)      In U.S.  dollars or the equivalent  thereof in one or more foreign  currencies or currency  units or composite  currencies,
         including the European Currency Unit.

(3)      The proposed  maximum offering price per unit will be determined from time to time by the Registrant in connection with the
         issuance by the Registrant of the securities registered hereunder.

(4)      Estimated  solely for the  purpose of  calculating  the  registration  fee  pursuant to Rule  457(o).  In no event will the
         aggregate initial offering price of the Debt Securities,  Preferred Shares,  Depositary Shares,  Common Shares and Warrants
         issued  under this  Registration  Statement  exceed  $1,956,262,500  or the  equivalent  thereof in one or more  foreign or
         composite currencies.

(5)      No separate  consideration will be received for (i) Debt Securities,  Common Shares,  Preferred Shares or Depositary Shares
         that are issued upon conversion of Debt Securities,  Preferred Shares or Depositary Shares or (ii) Debt Securities,  Common
         Shares, Preferred Shares or Depositary Shares that are issued upon exercise of Warrants registered hereby.

(6)      If any such Debt  Securities  are issued at an original  issue  discount,  then the offering price shall be in such greater
         principal amount as shall result in an aggregate initial offering price of up to $1,956,262,500.

(7)      The aggregate  amount of Common Shares  registered  hereunder is limited to that which is permissible  under Rule 415(a)(4)
         under the Securities Act of 1933, as amended.  Each Common Share  registered  hereby may include a right to purchase Junior
         Participating Preferred Shares or other securities, as more fully described herein.

(8)      Calculated pursuant to Rule 457(o) of the rules and regulations under the Securities Act of 1933, as amended.

(9)      Pursuant to Rule 429(a) of the rules and regulations under the Securities Act of 1933, as amended, the Prospectus contained
         herein also relates to $43,737,500 in Debt Securities,  Common Shares,  Preferred  Shares,  Depository  Shares and Warrants
         included in the Company's Registration Statement on Form S-3 (File No. 333-17983).  The amount of the filing fee associated
         with such securities that was previously paid with such registration statement was $12,902.56.
</FN>
</TABLE>

THE PROSPECTUS CONTAINED HEREIN IS A COMBINED PROSPECTUS PURSUANT TO RULE 429(A)
OF THE RULES AND REGULATIONS UNDER THE SECURITIES ACT OF 1933, AS AMENDED, WHICH
ALSO RELATES TO $43,737,500 IN DEBT SECURITIES, COMMON SHARES, PREFERRED SHARES,
DEPOSITORY SHARES AND WARRANTS INCLUDED IN THE COMPANY'S  REGISTRATION STATEMENT
ON FORM S-3 (FILE NO. 333-17983).


<PAGE>
Information   contained  herein  is  subject  to  completion  or  amendment.   A
registration  statement  relating  to these  securities  has been filed with the
Securities  and Exchange  Commission.  These  securities may not be sold nor may
offers to buy be accepted prior to the time the registration  statement  becomes
effective.  This  prospectus  shall  not  constitute  an  offer  to  sell or the
solicitation of an offer to buy nor shall there by any sale of these  securities
in any State in which such offer,  solicitation  or sale would be unlawful prior
to registration or qualification under the securities laws of any such State.

                              Subject to Completion
                 Preliminary Prospectus Dated December 31, 1997
PROSPECTUS
                                 $2,000,000,000
                          Hospitality Properties Trust
  Debt Securities, Preferred Shares of Beneficial Interest, Depositary Shares,
                Common Shares of Beneficial Interest and Warrants
                             ----------------------

     Hospitality  Properties Trust, a Maryland real estate investment trust (the
"Company"  or "HPT"),  may from time to time offer in one or more series (i) its
unsecured debt securities (the "Debt Securities"),  (ii) its preferred shares of
beneficial  interest,   without  par  value  (the  "Preferred  Shares"),   (iii)
fractional  shares of the Preferred Shares (the "Depositary  Shares"),  (iv) its
common  shares of  beneficial  interest,  par value $.01 per share (the  "Common
Shares"),  or  (v)  warrants  to  purchase  any  of the  above  securities  (the
"Warrants"),  with an aggregate public offering price of up to $2,000,000,000 on
terms to be determined at the time of offering.  The Debt Securities,  Preferred
Shares,  Depositary  Shares,  Common  Shares  and  Warrants  (collectively,  the
"Offered Securities") may be offered, separately or together, in separate series
in  amounts,  at  prices  and on terms to be set forth in a  supplement  to this
Prospectus (a "Prospectus Supplement").

     The  specific  terms of the  Offered  Securities  in  respect of which this
Prospectus is being  delivered  will be set forth in the  applicable  Prospectus
Supplement  and  will  include,  where  applicable:  (i) in  the  case  of  Debt
Securities,  the specific title,  aggregate  principal  amount,  currency,  form
(which may be  registered  or bearer,  or  certificated  or global),  authorized
denominations,  maturity,  rate (or manner of  calculation  thereof) and time of
payment  of  interest,  terms for  redemption  at the  option of the  Company or
repayment at the option of the holder,  terms for sinking fund  payments,  terms
for conversion into Preferred Shares,  Depositary Shares or Common Shares, terms
for subordination to other  indebtedness of the Company,  and any initial public
offering  price;  (ii) in the case of Preferred  Shares,  the specific title and
stated value,  any dividend,  liquidation,  redemption,  conversion,  voting and
other  rights,  and any  initial  public  offering  price;  (iii) in the case of
Depositary Shares, the fractional shares of Preferred Shares represented by each
Depositary Share; (iv) in the case of Common Shares, any offering price; and (v)
in the case of Warrants, the securities to which they relate, duration, offering
price,  exercise price and detachability.  In addition,  such specific terms may
include  limitations  on direct or  beneficial  ownership  and  restrictions  on
transfer  of the  Offered  Securities,  in each  case as may be  appropriate  to
preserve the status of the Company as a real estate  investment  trust  ("REIT")
for federal income tax purposes.

         The applicable  Prospectus  Supplement  will also contain  information,
where applicable,  about certain United States federal income tax considerations
relating to, and any listing on a securities exchange of, the Offered Securities
covered by such Prospectus Supplement.
                             ----------------------
    THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES
       AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS
       THE SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COM-
        MISSION PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS.
            ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
                             ----------------------

     The Offered  Securities may be offered directly,  through agents designated
from time to time by the Company or to or through  underwriters  or dealers.  If
any  agents  or  underwriters  are  involved  in the sale of any of the  Offered
Securities,  their names, and any applicable  purchase price, fee, commission or
discount  arrangement  between  or among  them,  will be set  forth,  or will be
calculable  from  the  information  set  forth,  in an  accompanying  Prospectus
Supplement.  See  "Plan of  Distribution."  No  Offered  Securities  may be sold
without delivery of a Prospectus  Supplement  describing the method and terms of
the offering of such Offered Securities.
                             ----------------------
              The date of this Prospectus is ______________, 1997.
<PAGE>

     No  person  has  been  authorized  to give any  information  or to make any
representations  other than those contained or incorporated by reference in this
Prospectus in connection  with the offer  contained in this  Prospectus  and, if
given or made, such  information or  representations  must not be relied upon as
having been  authorized by the Company or any  underwriters,  agents or dealers.
This Prospectus does not constitute an offer to sell or solicitation of an offer
to buy  securities in any  jurisdiction  to any person to whom it is unlawful to
make such offer or solicitation. Neither the delivery of this Prospectus nor any
sale made hereunder shall, under any  circumstances,  create an implication that
there has been no change in the  affairs  of the  Company  and its  subsidiaries
since the date hereof or the information  contained or incorporated by reference
herein is correct at any time subsequent to the date hereof.

                              AVAILABLE INFORMATION

     The Company has filed with the  Securities  and  Exchange  Commission  (the
"Commission")  in  Washington,  D.C.,  a  registration  statement  on  Form  S-3
(together with all exhibits, schedules and amendments thereto, the "Registration
Statement") under the Securities Act of 1933, as amended (the "Securities Act"),
with respect to the Offered Securities. This Prospectus,  which is a part of the
Registration Statement, does not contain all of the information set forth in the
Registration Statement.  Statements in this Prospectus as to the contents of any
contract or other document are not  necessarily  complete,  and in each instance
reference is made to the copy of such  contract or other  documents  filed as an
exhibit to the  Registration  Statement,  each such statement being qualified in
all  respects by such  reference  and the exhibits and  schedules  thereto.  For
further information concerning the Company and the Offered Securities, reference
is made to the Registration Statement.  Copies of the Registration Statement may
be obtained from the Commission at its principal office in Washington, D.C. upon
payment of the prescribed fee.

     The Company is subject to the informational  requirements of the Securities
Exchange  Act of 1934,  as amended  (the  "Exchange  Act"),  and, in  accordance
therewith,  files  reports  and  other  information  with  the  Commission.  The
Registration  Statement,  the exhibits and schedules  forming a part thereof and
the reports,  proxy statements and other  information  filed by the Company with
the  Commission  can be inspected  and copies  obtained at the public  reference
facilities maintained by the Commission at Judiciary Plaza, Room 1024, 450 Fifth
Street, N.W.,  Washington,  D.C. 20549, and at the following regional offices of
the Commission:  Chicago Regional  Office,  Suite 1400, 500 West Madison Street,
Chicago,  Illinois  60661-2511;  and New York Regional Office, Seven World Trade
Center,  New York,  New York 10048.  Copies of such  material can be obtained at
prescribed  rates from the Public  Reference  Section of the  Commission  at its
principal  office  at 450  Fifth  Street,  N.W.,  Washington,  D.C.  20549.  The
Commission  maintains  a World Wide Web site that  contains  reports,  proxy and
information  statements and other  information  regarding  registrants that file
electronically   with   the   Commission.   The   address   of   the   site   is
http://www.sec.gov. The Company's Common Shares are traded on the New York Stock
Exchange ("NYSE") under the symbol "HPT," and similar information concerning the
Company may be inspected at the office of the NYSE at 20 Broad Street, New York,
New York 10005.

                 INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

     The following documents, which have been filed with the Commission pursuant
to the Exchange Act, are hereby incorporated in this Prospectus and specifically
made a part hereof by reference:  (i) the  Company's  Annual Report on Form 10-K
for the fiscal year ended  December  31, 1996 (the  "Annual  Report"),  (ii) the
Company's  Quarterly Reports on Form 10-Q for the quarters ended March 31, 1997,
June 30, 1997 and September 30, 1997,  (iii) the  Company's  current  reports on
Form 8-K dated April 3, 1997,  May 20,  1997,  November 21, 1997 and December 9,
1997 and (iv) the Company's  Registration Statement on Form 8-A dated August 14,
1995, relating to the Common Shares. All documents filed by the Company pursuant
to Section 13(a),  13(c),  14 or 15(d) of the Exchange Act (i) subsequent to the
date of this  Prospectus  and prior to the  termination  of the  offering of the
Securities  and  (ii)  subsequent  to the  date of  filing  of the  registration
statement of which this Prospectus  forms a part and prior to  effectiveness  of
such registration statement shall be deemed to be incorporated by reference into
this  Prospectus and to be a part hereof from the respective  dates of filing of
such documents.


                                      (ii)

<PAGE>

     Any statement  contained herein or in a document  incorporated or deemed to
be incorporated herein by reference shall be deemed to be modified or superseded
for purposes of this Prospectus to the extent that a statement  contained herein
(or in the  applicable  Prospectus  Supplement),  or in any  subsequently  filed
document  that  also is or is  deemed to be  incorporated  herein by  reference,
modifies  or  supersedes  such  statement.  Any such  statement  so  modified or
superseded  shall  not be  deemed,  except  as so  modified  or  superseded,  to
constitute a part of this Prospectus.

     The Company hereby  undertakes to provide  without charge to each person to
whom this  Prospectus  is  delivered,  upon the written or oral  request of such
person, a copy of any and all of the information  that has been  incorporated by
reference  in this  Prospectus  (excluding  exhibits  unless such  exhibits  are
specifically incorporated by reference into the information that this Prospectus
incorporates).  Requests  for such  copies  should be made to the Company at its
principal executive offices,  400 Centre Street,  Newton,  Massachusetts  02158,
Attention: Investor Relations, telephone (617) 964-8389.


                                      (iii)

<PAGE>

                                   THE COMPANY

     Hospitality  Properties  Trust (the "Company") is a real estate  investment
trust ("REIT") formed to acquire, own and lease hotels to unaffiliated  tenants.
At September  30, 1997,  the Company owned 93 hotels with  approximately  13,500
rooms or suites located in 29 states,  purchased for approximately $968 million.
The hotels  include 26  Residence  Inn by  Marriott(R)  hotels,  55 Courtyard by
Marriott(R) hotels and 12 Wyndham(R) hotels.

     The Company's business strategy is to invest in and lease hotels at minimum
rents which  produce  income in excess of the  Company's  cost of  capital.  The
Company  provides  capital to  unaffiliated  hotel  operators who wish to divest
their  properties  while remaining in the hotel business as tenants.  As a REIT,
the Company may not operate or manage its hotels.

     The Company is organized as a Maryland real estate  investment  trust under
Title 8 of the Corporations  and  Associations  Article of the Annotated Code of
Maryland (the "Maryland REIT Law"). The Company's principal place of business is
400 Centre Street, Newton, Massachusetts 02158 and its telephone number is (617)
964-8389.

                                 USE OF PROCEEDS

     Unless otherwise  described in the applicable  Prospectus  Supplement,  the
Company intends to use the net proceeds from the sale of the Offered  Securities
for general  business  purposes,  which may include the acquisition of, or other
investments  in,  hotel and lodging  related  properties  and the  repayment  of
indebtedness  outstanding  at such time or the reduction of amounts  outstanding
under the Company's credit facilities.  Pending  utilization as set forth above,
the proceeds from the sale of the Offered  Securities  will be invested in short
term investments,  including repurchase agreements.  Such investments may not be
investment grade.

                       RATIO OF EARNINGS TO FIXED CHARGES

     The  following  table  sets  forth  the  Company's  consolidated  ratios of
earnings to fixed charges for the periods indicated:
<TABLE>
<CAPTION>
                                         February 7, 1995
                                          (inception) to      Fiscal year ended     Nine Months ended   For the quarter ended
                                        December 31, 1995     December 31, 1996     September 30, 1997   September 30, 1997
                                        -----------------     -----------------     ------------------  ---------------------
<S>                                          <C>                  <C>                    <C>                   <C>  
Ratio of earnings to fixed charges....        3.24x                10.15x                 5.23x                 4.52x
</TABLE>

     The ratios of earnings to fixed  charges  presented  above were computed by
dividing the Company's  earnings by fixed  charges.  For this purpose,  earnings
have been  calculated  by adding fixed  charges to income  before  income taxes,
extraordinary items and gain or loss on the disposition of real property.  Fixed
charges consist of interest costs, whether expensed or capitalized, the interest
component of rental expense, if any, amortization of debt discounts and deferred
financing costs,  whether expensed or capitalized.  To date, the Company has not
issued any Preferred Shares;  therefore, the ratio of earnings to combined fixed
charges  and  Preferred  Shares  distributions  are the  same as the  ratios  of
earnings to fixed charges presented above.


                                        1

<PAGE>

                         DESCRIPTION OF DEBT SECURITIES

     The  Debt  Securities  will be  issued  under  one or more  indentures  (an
"Indenture")  between the Company and a trustee (an  "Indenture  Trustee").  Any
Indenture will be subject to, and governed by, the Trust  Indenture Act of 1939,
as amended (the "TIA"). The statements made hereunder relating to any Indentures
and the Debt  Securities  to be  issued  thereunder  are  summaries  of  certain
anticipated provisions thereof and do not purport to be complete and are subject
to, and are qualified in their  entirety by reference to, all  provisions of the
Indentures and such Debt Securities.

General

     The Company has filed with its  Registration  Statement with respect to the
Offered  Securities a form of Indenture (as supplemented  from time to time, the
"Senior Indenture") relating to the Senior Securities (as defined) and a form of
Indenture (as  supplemented  from time to time,  the  "Subordinated  Indenture")
relating to the Subordinated  Securities (as defined).  The Debt Securities will
be direct,  unsecured obligations of the Company and, if issued under the Senior
Indenture, will rank equally and ratably with other unsecured and unsubordinated
indebtedness of the Company (the "Senior  Securities"),  or, if issued under the
Subordinated  Indenture,  will be  subordinated in right of payment to the prior
payment in full of Senior Indebtedness (as defined in the applicable  Prospectus
Supplement)  ("Subordinated  Securities").   See  "--Subordination".   The  Debt
Securities may be issued without limit as to aggregate  principal amount, in one
or more series,  in each case as established from time to time in or pursuant to
authority  granted by a resolution  of the Board of Trustees of the Company (the
"Trustees")  or as  established in one or more  indentures  supplemental  to any
Indenture. All Debt Securities of one series need not be issued at the same time
and, unless otherwise provided, a series may be reopened, without the consent of
the holders of the Debt  Securities of such series,  for issuances of additional
Debt Securities of such series.

     It is anticipated that any Indenture will provide that the Company may, but
need  not,  designate  more than one  Indenture  Trustee  thereunder,  each with
respect to one or more series of Debt  Securities.  Any Indenture  Trustee under
any  Indenture  may resign or be removed  with  respect to one or more series of
Debt Securities,  and a successor Indenture Trustee may be appointed to act with
respect  to such  series.  In the event that two or more  persons  are acting as
Indenture Trustee with respect to different series of Debt Securities, each such
Indenture  Trustee shall be a trustee of a trust under the applicable  Indenture
separate and apart from the trust  administered by any other Indenture  Trustee,
and, except as otherwise  indicated  herein,  any action  described herein to be
taken by the Indenture  Trustee may be taken by each such Indenture Trustee with
respect to, and only with respect to, the one or more series of Debt  Securities
for which it is Indenture Trustee under the applicable Indenture.

     Reference is made to the  Prospectus  Supplement  relating to the series of
Debt Securities being offered for the specific terms thereof,  including,  where
applicable, the following:

     (1) the title of such Debt  Securities and whether such Debt Securities are
         Senior Securities or Subordinated Securities;

     (2) the aggregate principal amount of such Debt Securities and any limit on
         such aggregate principal amount;

     (3) the  percentage of the principal  amount at which such Debt  Securities
         will be issued and, if other than the  principal  amount  thereof,  the
         portion of the principal  amount  thereof  payable upon  declaration of
         acceleration of the maturity thereof, or (if applicable) the portion of
         the principal amount of such Debt Securities  which is convertible,  or
         the method by which any such portion shall be determined;

     (4) if   convertible,   the  terms  on  which  such  Debt   Securities  are
         convertible,  including  the initial  conversion  price or rate and the
         conversion period and, in connection with the preservation of the

                                        2

<PAGE>



         Company's status as a REIT, any applicable limitations on the ownership
         or  transferability  of the securities  into which such Debt Securities
         are convertible;

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

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

     (7) the date or dates,  or the method for  determining  such date or dates,
         from  which  any  interest  will  accrue,  the  dates on which any such
         interest will be payable,  the record dates for such  interest  payment
         dates,  or the method by which any such date shall be  determined,  the
         person to whom such interest shall be payable, and the basis upon which
         interest shall be calculated if other than that of a 360-day year of 12
         months consisting of 30 days each;

     (8) the place or places  where the  principal  of, any premium and interest
         on,  and any  additional  amounts  payable  in  respect  of  such  Debt
         Securities will be payable, such Debt Securities may be surrendered for
         conversion  or  registration  of transfer  or  exchange  and notices or
         demands to or upon the Company in respect of such Debt  Securities  and
         the applicable Indenture may be served;

     (9) the period or periods  within  which,  the price or prices at which and
         the  terms and  conditions  upon  which  such  Debt  Securities  may be
         redeemed,  as a whole or in part, at the option of the Company,  if the
         Company is to have such an option;

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

     (11) if other than U.S.  dollars,  the currency or currencies in which such
          Debt Securities are  denominated  and payable,  which may be a foreign
          currency  or units of two or more  foreign  currencies  or a composite
          currency or currencies, and the terms and conditions relating thereto;

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

     (13) whether the amount of payments of principal of (and  premium,  if any)
          or interest,  if any, on such Debt  Securities may be determined  with
          reference to an index,  formula or other method (which index,  formula
          or method  may,  but need  not,  be based on a  currency,  currencies,
          currency unit or units or composite  currency or  currencies)  and the
          manner in which such amounts shall be determined;

     (14) the events of default or  covenants  of such Debt  Securities,  to the
          extent  different from or in addition to those described  herein,  and
          any  provisions  granting  special  rights to the holders of such Debt
          Securities upon the occurrence of events  specified in such Prospectus
          Supplement;

     (15) whether such Debt  Securities  will be issued in  certificated  and/or
          book-entry form;

                                        3
<PAGE>

     (16) whether such Debt Securities will be in registered or bearer form and,
          if in registered form, the denominations  thereof if other than $1,000
          and  any  integral  multiple  thereof  and,  if in  bearer  form,  the
          denominations thereof and terms and conditions relating thereto;

     (17) whether any of such Debt  Securities  are to be issuable in  permanent
          global  form  (a  "Global   Security")  and,  if  so,  the  terms  and
          conditions,  if any, upon which  interests in such Debt  Securities in
          global form may be exchanged,  in whole or in part, for the individual
          Debt Securities represented thereby;

     (18) the applicability,  if any, of the defeasance and covenant  defeasance
          provisions described herein or any modification thereof;

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

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

     (21) any other terms of such Debt Securities.

     The Debt Securities may provide for less than the entire  principal  amount
thereof to be payable upon  declaration of acceleration of the maturity  thereof
("Original Issue Discount Securities"). If material or applicable,  special U.S.
federal income tax, accounting and other  considerations  applicable to Original
Issue  Discount  Securities  will  be  described  in the  applicable  Prospectus
Supplement.

     Except as described under  "--Merger,  Consolidation  or Sale" or as may be
set forth in any Prospectus Supplement,  an Indenture will not contain any other
provisions that would limit the ability of the Company to incur  indebtedness or
that would afford  holders of the Debt  Securities  protection in the event of a
highly  leveraged  or  similar  transaction  involving  the  Company.   However,
restrictions  on ownership  and transfers of the  Company's  equity  securities,
designed to preserve its status as a REIT, as well as the Company's  shareholder
rights plan, may act to prevent or hinder a change of control (see  "Redemption;
Trustees;  Business Combinations and Control Share Acquisitions -- Rights Plan,"
below).   Reference  is  made  to  the  applicable   Prospectus  Supplement  for
information with respect to any deletions from, modifications of or additions to
the events of default or  covenants  that are  described  below,  including  any
addition  of a  covenant  or other  provisions  providing  event risk or similar
protection.

Denominations, Interest, Registration and Transfer

     Unless otherwise  described in the applicable  Prospectus  Supplement,  the
Debt  Securities  of any  series  which are  registered  securities,  other than
registered  securities issued in global form (which may be of any denomination),
shall be issuable in denominations of $1,000 and any integral multiple thereof.

     Unless otherwise  specified in the applicable  Prospectus  Supplement,  the
principal of (and premium, if any) and interest on any series of Debt Securities
will  be  payable  at the  corporate  trust  office  of the  Indenture  Trustee,
initially at the address  which will be set forth in the  applicable  Prospectus
Supplement; provided that, at the option of the Company, payment of interest may
be made by check  mailed to the  address  of the person  entitled  thereto as it
appears in the  applicable  register or by wire transfer of funds to such person
at an account maintained within the United States.


                                        4
<PAGE>

     Any  interest  not  punctually  paid or duly  provided  for on any interest
payment  date  with  respect  to a Debt  Security  ("Defaulted  Interest")  will
forthwith  cease to be payable to the holder on the  applicable  regular  record
date and may either be paid to the person in whose  name such Debt  Security  is
registered  at the close of  business  on a special  record  date (the  "Special
Record  Date") for the  payment of such  Defaulted  Interest  to be fixed by the
applicable  Indenture  Trustee,  notice  whereof shall be given to the holder of
such Debt  Security not less than 10 days prior to such Special  Record Date, or
may be paid at any  time in any  other  lawful  manner,  all as more  completely
described in the applicable Indenture.

     Subject to  certain  limitations  imposed  upon Debt  Securities  issued in
book-entry  form,  the Debt  Securities of any series will be  exchangeable  for
other  Debt  Securities  of the same  series and of a like  aggregate  principal
amount and tenor of different  authorized  denominations  upon surrender of such
Debt  Securities  at the  corporate  trust  office of the  applicable  Indenture
Trustee.  In  addition,   subject  to  certain  limitations  imposed  upon  Debt
Securities  issued in book-entry  form, the Debt Securities of any series may be
surrendered for conversion or registration of transfer  thereof at the corporate
trust  office  of  the  applicable   Indenture  Trustee.   Every  Debt  Security
surrendered for  conversion,  registration of transfer or exchange shall be duly
endorsed or accompanied by a written  instrument of transfer.  No service charge
will  be  made  for  any  registration  of  transfer  or  exchange  of any  Debt
Securities,  but the Indenture  Trustee or the Company may require  payment of a
sum  sufficient  to  cover  any tax or  other  governmental  charge  payable  in
connection  therewith.  If the applicable  Prospectus  Supplement  refers to any
transfer agent (in addition to the Indenture  Trustee)  initially  designated by
the Company  with respect to any series of Debt  Securities,  the Company may at
any time rescind the  designation of any such transfer agent or approve a change
in the location  through  which any such  transfer  agent acts,  except that the
Company  will be required to maintain a transfer  agent in each place of payment
for such  series.  The Company  may at any time  designate  additional  transfer
agents with respect to any series of Debt Securities.

     Neither  the  Company nor any  Indenture  Trustee  shall be required to (i)
issue, register the transfer of or exchange Debt Securities of any series during
a period  beginning  at the opening of business 15 days before any  selection of
Debt  Securities  of that  series  to be  redeemed  and  ending  at the close of
business  on (a) if  such  Debt  Securities  are  issuable  only  as  registered
securities,  the day of the mailing of the relevant notice of redemption and (b)
if such Debt Securities are issuable as bearer securities,  the day of the first
publication of the relevant notice of redemption or, if such Debt Securities are
also issuable as registered securities and there is no publication,  the mailing
of the  relevant  notice of  redemption,  or (ii) to register the transfer of or
exchange any registered security so selected for redemption in whole or in part,
except,  in the case of any  registered  security to be  redeemed  in part,  the
portion thereof not to be redeemed,  or (iii) to exchange any bearer security so
selected for redemption  except that such a bearer security may be exchanged for
a  registered  security  of that  series  and like  tenor;  provided  that  such
registered security shall be simultaneously  surrendered for redemption, or (iv)
to issue,  register the transfer of or exchange any Debt Security which has been
surrendered  for repayment at the option of the holder,  except the portion,  if
any, of such Debt Security not to be so repaid.

Merger, Consolidation or Sale

     The  Company  may  consolidate  with,  or  sell,  lease  or  convey  all or
substantially  all of its assets to, or merge  with or into,  any other  entity;
provided  that (i)  either the  Company  shall be the  continuing  entity or the
successor  entity (if other than the Company)  formed by or  resulting  from any
such  consolidation  or merger or which shall have received the transfer of such
assets shall expressly assume payment of the principal of (and premium,  if any)
and interest on all of the Debt Securities and the due and punctual  performance
and  observance  of  all  of  the  covenants  and  conditions  contained  in any
Indenture; (ii) immediately after giving effect to such transaction and treating
any indebtedness which becomes an obligation of the Company or any subsidiary as
a result  thereof as having been  incurred by the Company or such  subsidiary at
the time of such  transaction,  no event of default under any Indenture,  and no
event which,  after notice or the lapse of time,  or both,  would become such an
event of default, shall have occurred and be continuing;  and (iii) an officer's
certificate and legal opinion covering such conditions shall be delivered to the
Indenture Trustee.

                                        5
<PAGE>

Certain Covenants

     Existence. Except as permitted under "--Merger, Consolidation or Sale," the
Company  will be  required  to do or cause to be done all  things  necessary  to
preserve  and keep in full  force and  effect its  corporate  existence,  rights
(charter and  statutory) and  franchises;  provided,  however,  that the Company
shall not be required to preserve any right or franchise if it  determines  that
the preservation thereof is no longer desirable in the conduct of its business.

     Provision of Financial  Information.  Whether or not the Company is subject
to Section 13 or 15(d) of the  Exchange  Act,  the Company  will,  to the extent
permitted  under the Exchange Act, file with the Commission the annual  reports,
quarterly reports and other documents which the Company would have been required
to file with the Commission pursuant to such Section 13 or 15(d) (the "Financial
Statements") if the Company were so subject, such documents to be filed with the
Commission on or prior to the respective  dates (the "Required Filing Dates") by
which the  Company  would have been  required so to file such  documents  if the
Company  were so subject.  The Company will also in any event (i) within 15 days
of each  Required  Filing  Date  (a)  transmit  by mail to all  holders  of Debt
Securities,  as their  names  and  addresses  appear in the  Company's  security
register,  without  cost to such  holders,  copies  of the  annual  reports  and
quarterly  reports  which the Company  would have been required to file with the
Commission  pursuant to Section 13 or 15(d) of the  Exchange  Act if the Company
were  subject  to such  Sections,  and (b) file  with the  applicable  Indenture
Trustee  copies of the annual  reports,  quarterly  reports and other  documents
which the Company would have been required to file with the Commission  pursuant
to Section 13 or 15(d) of the  Exchange  Act if the Company were subject to such
Sections,  and (ii) if filing such  documents by the Company with the Commission
is not  permitted  under the Exchange  Act,  promptly  upon written  request and
payment of the  reasonable  cost of duplication  and delivery,  supply copies of
such documents to any prospective holder of Debt Securities.

     Additional Covenants.  Any additional or different covenants of the Company
with  respect  to any  series  of  Debt  Securities  will  be set  forth  in the
Prospectus Supplement relating thereto.

Events of Default, Notice and Waiver

     Each  Indenture  will  provide  that the  following  events are  "Events of
Default" with respect to any series of Debt Securities  issued  thereunder:  (a)
default for 30 days in the payment of any  installment  on any Debt  Security of
such series; (b) default in the payment of the principal of (or premium, if any,
on) any Debt Security of such series at its maturity;  (c) default in making any
sinking  fund  payments as required for any Debt  Security of such  series;  (d)
default in the performance of any other covenant of the Company contained in the
applicable  Indenture  (other than a covenant added to such Indenture solely for
the benefit of a series of Debt  Securities  issued  thereunder  other than such
series),  such default  having  continued  for 60 days after  written  notice as
provided in such Indenture; (e) default in the payment of an aggregate principal
amount  exceeding a specified  dollar amount of any evidence of  indebtedness of
the Company or any  mortgage,  indenture  or other  instrument  under which such
indebtedness is issued or by which such  indebtedness  is secured,  such default
having  occurred after the expiration of any applicable  grace period and having
resulted in the acceleration of the maturity of such  indebtedness,  but only if
such  indebtedness  is not discharged or such  acceleration  is not rescinded or
annulled;  (f) certain events of bankruptcy,  insolvency or  reorganization,  or
court  appointment  of a receiver,  liquidator  or trustee of the Company or any
Significant  Subsidiary  (as  hereinafter  defined)  or any of their  respective
property;  and (g) any  other  event  of  default  provided  with  respect  to a
particular series of Debt Securities.  The term  "Significant  Subsidiary" means
each significant  subsidiary (as defined in Regulation S-X promulgated under the
Securities Act) of the Company.

     If an Event of Default (other than an Event of Default  described in clause
(f) above) under any Indenture with respect to Debt  Securities of any series at
the time  outstanding  occurs  and is  continuing,  then in every  such case the
applicable  Indenture  Trustee or the  holders  of not less than a  majority  in
principal  amount of the outstanding  Debt Securities of that series may declare
the  principal  amount (or, if the Debt  Securities  of that series are Original
Issue Discount Securities or indexed  securities,  such portion of the principal
amount as may be specified

                                        6
<PAGE>

in the terms thereof) of all of the Debt Securities of that series to be due and
payable  immediately  by  written  notice  thereof  to the  Company  (and to the
applicable  Indenture  Trustee if given by the holders).  If an Event of Default
described in clause (f) above with respect to the Debt  Securities of any series
at the time  outstanding  shall  occur,  the  principal  amount  of all the Debt
Securities of that series (or, in the case of any such Original  Issue  Discount
Security or other Debt Security, such specified amount) will automatically,  and
without any action by the Indenture Trustee or any holder of such series of Debt
Securities,  become immediately due and payable. However, at any time after such
a declaration of acceleration with respect to Debt Securities of such series (or
of all Debt Securities then outstanding under the applicable  Indenture,  as the
case may be) has been made,  but before a judgment  or decree for payment of the
money due has been obtained by the applicable  Indenture Trustee, the holders of
not less than a majority in principal  amount of outstanding  Debt Securities of
such series (or of all Debt  Securities  then  outstanding  under the applicable
Indenture,  as the case may be) may rescind and annul such  declaration  and its
consequences  if (i) the  Company  shall  have  deposited  with  the  applicable
Indenture  Trustee all required  payments of the principal of (and  premium,  if
any)  and  interest  on the  Debt  Securities  of such  series  (or of all  Debt
Securities then outstanding under the applicable Indenture, as the case may be),
plus  certain  fees,  expenses,  disbursements  and  advances of the  applicable
Indenture Trustee, and (ii) all Events of Default, other than the non-payment of
accelerated  principal (or specified  portion  thereof),  or premium (if any) or
interest on the Debt  Securities of such series (or of all Debt  Securities then
outstanding under the applicable Indenture,  as the case may be) have been cured
or waived as provided in the applicable  Indenture.  Each of the Indentures will
also provide that the holders of not less than a majority in principal amount of
the  outstanding  Debt  Securities of any series (or of all Debt Securities then
outstanding  under the applicable  Indenture,  as the case may be) may waive any
past default with respect to such series and its consequences,  except a default
(i) in the payment of the  principal of (or premium,  if any) or interest on any
Debt  Security  of such  series or (ii) in respect of a  covenant  or  provision
contained in the applicable Indenture that cannot be modified or amended without
the consent of the holder of each outstanding Debt Security affected thereby.

     The  Indenture  Trustee  will be  required to give notice to the holders of
Debt  Securities  within 90 days of a default  under  the  applicable  Indenture
unless  such  default  has been cured or waived;  provided,  however,  that such
Indenture  Trustee  may  withhold  notice to the  holders  of any series of Debt
Securities  of any default with respect to such series  (except a default in the
payment  of the  principal  of (or  premium,  if any) or  interest  on any  Debt
Security of such series or in the payment of any  sinking  fund  installment  in
respect of any Debt Security of such series) if specified  responsible  officers
of such  Indenture  Trustee  consider such  withholding to be in the interest of
such holders.

     Each  Indenture  will  provide  that no holders of Debt  Securities  of any
series may institute any proceedings, judicial or otherwise, with respect to the
Indenture  or for any  remedy  thereunder,  except in the case of failure of the
Indenture  Trustee,  for 60 days, to act after it has received a written request
to institute  proceedings  in respect of an event of default from the holders of
not less than a majority in principal  amount of the outstanding Debt Securities
of such series, as well as an offer of reasonable indemnity. This provision will
not prevent,  however,  any holder of Debt Securities from  instituting suit for
the  enforcement  of  payment  of the  principal  of (and  premium,  if any) and
interest on such Debt Securities at the respective due dates thereof.

     Subject to provisions in the applicable Indenture relating to its duties in
case of default,  no Indenture  Trustee will be under any obligation to exercise
any of its rights or powers under such  Indenture at the request or direction of
any  holders  of any  series of Debt  Securities  then  outstanding  under  such
Indenture,  unless such  holders  shall have  offered to the  Indenture  Trustee
reasonable  security  or  indemnity.  The holders of not less than a majority in
principal  amount of the  outstanding  Debt  Securities of any series (or of all
Debt Securities then outstanding under the applicable Indenture, as the case may
be) shall have the right to direct the time,  method and place of conducting any
proceeding for any remedy available to the applicable  Indenture Trustee,  or of
exercising any trust or power conferred upon such Indenture Trustee. However, an
Indenture  Trustee may refuse to follow any direction  which is in conflict with
any law or the Indenture,  which may involve such Indenture  Trustee in personal
liability or which may be unduly  prejudicial to the holders of Debt  Securities
of such series not joining therein.

                                        7
<PAGE>

     The Company will be required to deliver to each Indenture  Trustee annually
a  certificate,  signed by one of several  specified  officers  of the  Company,
stating  whether or not such  officer has  knowledge  of any  default  under the
applicable Indenture and, if so, specifying each such default and the nature and
status thereof.

Modification of the Indenture

     Modifications  and  amendments of an Indenture will be permitted to be made
only with the consent of the  holders of not less than a majority  in  principal
amount  of all  outstanding  Debt  Securities  or  series  of  outstanding  Debt
Securities  which are  affected by such  modification  or  amendment;  provided,
however,  that no such modification or amendment may, without the consent of the
holder of each such Debt  Security  affected  thereby,  (i)  change  the  stated
maturity of the principal  of, or any  installment  of interest (or premium,  if
any) on any such Debt Security; (ii) reduce the principal amount of, or the rate
or amount of interest on, or any premium payable on redemption of, any such Debt
Security,  or reduce the  amount of  principal  of an  Original  Issue  Discount
Security that would be due and payable upon  declaration of  acceleration of the
maturity  thereof or would be provable in  bankruptcy,  or adversely  affect any
right of  repayment  of the holder of any such Debt  Security;  (iii) change the
place of payment, or the coin or currency, for payment of principal of, premium,
if any,  or  interest  on any such  Debt  Security;  (iv)  impair  the  right to
institute suit for the enforcement of any payment on or with respect to any such
Debt  Security;  (v) reduce the  above-stated  percentage  of  outstanding  Debt
Securities of any series  necessary to modify or amend the  Indenture,  to waive
compliance with certain  provisions thereof or certain defaults and consequences
thereunder  or to reduce  the  quorum or voting  requirements  set forth in such
Indenture;  or  (vi)  modify  any  of  the  foregoing  provisions  or any of the
provisions relating to the waiver of certain past defaults or certain covenants,
except to increase the required  percentage  to effect such action or to provide
that certain other  provisions may not be modified or waived without the consent
of the holder of such Debt Security.

     Each Indenture will provide that the holders of not less than a majority in
principal  amount of a series of outstanding  Debt  Securities have the right to
waive compliance by the Company with certain  covenants  relating to such series
of Debt Securities in such Indenture.

     Modifications  and  amendments of an Indenture will be permitted to be made
by the Company  and the  applicable  Indenture  Trustee  thereunder  without the
consent of any holder of Debt Securities for any of the following purposes:  (i)
to evidence the  succession  of another  person to the Company as obligor  under
such  Indenture;  (ii) to add to the covenants of the Company for the benefit of
the holders of all or any series of Debt Securities or to surrender any right or
power  conferred  upon the  Company  in such  Indenture;  (iii) to add events of
default for the benefit of the holders of all or any series of Debt  Securities;
(iv) to add or change any provisions of the Indenture to facilitate the issuance
of, or to  liberalize  certain  terms of, Debt  Securities in bearer form, or to
permit or facilitate  the issuance of Debt  Securities in  uncertificated  form;
provided  that such  action  shall not  adversely  affect the  interests  of the
holders  of the Debt  Securities  in any  material  respect;  (v) to  change  or
eliminate  any  provisions  of the  Indenture;  provided that any such change or
elimination  shall  become  effective  only when  there  are no Debt  Securities
outstanding  of any series  created  prior  thereto  which are  entitled  to the
benefit  of such  provision;  (vi) to  secure  the  Debt  Securities;  (vii)  to
establish  the form or terms of Debt  Securities  of any series,  including  the
provisions  and  procedures,  if  applicable,  for the  conversion  of such Debt
Securities  into Common  Shares or Preferred  Shares;  (viii) to provide for the
acceptance of  appointment  by a successor  Indenture  Trustee or facilitate the
administration  of the  trusts  under an  Indenture  by more than one  Indenture
Trustee;  (ix) to cure any ambiguity,  defect or  inconsistency in an Indenture;
provided that such action shall not adversely affect the interests of holders of
Debt Securities of any series in any material respect;  or (x) to supplement any
of the  provisions  of an  Indenture  to  the  extent  necessary  to  permit  or
facilitate  defeasance  and  discharge  of any  series of such Debt  Securities;
provided  that such  action  shall not  adversely  affect the  interests  of the
holders of the Debt Securities of any series in any material respect.

     Each Indenture will provide that in determining  whether the holders of the
requisite principal amount of outstanding Debt Securities of a series have given
any  request,  demand,  authorization,  direction,  notice,  consent  or  waiver
thereunder  or  whether a quorum is  present  at a meeting  of  holders  of Debt
Securities, (i) the principal

                                        8
<PAGE>

amount  of an  Original  Issue  Discount  Security  that  shall be  deemed to be
outstanding  shall be the amount of the principal  thereof that would be due and
payable as of the date of such determination upon declaration of acceleration of
the maturity thereof,  (ii) the principal amount of a Debt Security  denominated
in a foreign currency that shall be deemed  outstanding shall be the U.S. dollar
equivalent,  determined  on the  issue  date  for  such  Debt  Security,  of the
principal  amount (or, in the case of an Original Issue Discount  Security,  the
U.S.  dollar  equivalent  on the issue date of such Debt  Security of the amount
determined as provided in (i) above),  (iii) the principal  amount of an indexed
security that shall be deemed  outstanding shall be the principal face amount of
such indexed  security at original  issuance,  unless  otherwise  provided  with
respect to such  indexed  security in the  applicable  Indenture,  and (iv) Debt
Securities owned by the Company or any other obligor upon the Debt Securities or
any affiliate of the Company or of such other obligor shall be disregarded.

     Each  Indenture  will  contain  provisions  for  convening  meetings of the
holders of Debt  Securities of a series.  A meeting may be called at any time by
an Indenture Trustee,  and also, upon request,  by the Company or the holders of
at least 25% in principal  amount of the  outstanding  Debt  Securities  of such
series,  in any such case,  upon notice  given as  provided  in such  Indenture.
Except for any  consent  that must be given by the holder of each Debt  Security
affected by certain modifications and amendments of an Indenture, any resolution
presented at a meeting or adjourned meeting duly reconvened at which a quorum is
present may be adopted by the  affirmative  vote of the holders of a majority in
principal  amount of the outstanding  Debt Securities of that series;  provided,
however,  that,  except as referred to above, any resolution with respect to any
request,  demand,  authorization,  direction,  notice,  consent, waiver or other
action  that  may be  made,  given  or  taken  by  the  holders  of a  specified
percentage,  which  is  less  than  a  majority,  in  principal  amount  of  the
outstanding Debt Securities of a series may be adopted at a meeting or adjourned
meeting duly reconvened at which a quorum is present by the affirmative  vote of
the holders of such specified  percentage in principal amount of the outstanding
Debt Securities for that series.  Any resolution passed or decision taken at any
meeting of holders of Debt Securities of any series duly held in accordance with
the applicable  Indenture  will be binding on all holders of Debt  Securities of
that series. The quorum at any meeting called to adopt a resolution,  and at any
reconvened  meeting,  will be persons  holding  or  representing  a majority  in
principal  amount of the  outstanding  Debt  Securities  of a series;  provided,
however,  that if any action is to be taken at such  meeting  with  respect to a
consent or waiver which may be given by the holders of not less than a specified
percentage in principal  amount of the outstanding  Debt Securities of a series,
the persons  holding or  representing  such  specified  percentage  in principal
amount of the  outstanding  Debt  Securities  of such series will  constitute  a
quorum.

     Notwithstanding the foregoing provisions,  each Indenture will provide that
if any action is to be taken at a meeting of holders of Debt  Securities  of any
series with respect to any request, demand,  authorization,  direction,  notice,
consent,  waiver or other action that such Indenture  expressly  provides may be
made,  given or taken by the holders of such  series and one or more  additional
series:  (i) there shall be no minimum quorum  requirement  for such meeting and
(ii) the principal amount of the outstanding Debt Securities of such series that
vote in  favor  of  such  request,  demand,  authorization,  direction,  notice,
consent,  waiver or other  action  shall be taken into  account  in  determining
whether such request, demand, authorization,  direction, notice, consent, waiver
or other action has been made, given or taken under such Indenture.

Discharge, Defeasance and Covenant Defeasance

     The Company may discharge  certain  obligations to holders of any series of
Debt Securities that have not already been delivered to the applicable Indenture
Trustee  for  cancellation  and that  either have become due and payable or will
become due and payable within one year (or scheduled for  redemption  within one
year) by irrevocably  depositing with such Indenture Trustee, in trust, funds in
such currency or  currencies,  currency  unit or units or composite  currency or
currencies in which such Debt Securities are payable in an amount  sufficient to
pay the entire indebtedness on such Debt Securities in respect of principal (and
premium,  if any)  and  interest  to the  date of such  deposit  (if  such  Debt
Securities  have become due and payable) or to the stated maturity or redemption
date, as the case may be.

                                        9
<PAGE>

     An  Indenture  may provide  that,  if certain  provisions  thereof are made
applicable  to the  Debt  Securities  of or  within  a  series  pursuant  to the
Indenture,  the Company may elect either (i) to defease and be  discharged  from
any and all  obligations  with respect to such Debt  Securities  (except for the
obligation to pay  additional  amounts,  if any, upon the  occurrence of certain
events of tax,  assessment  or  governmental  charge with respect to payments on
such Debt Securities and the obligations to register the transfer or exchange of
such Debt  Securities,  to replace  temporary or mutilated,  destroyed,  lost or
stolen Debt Securities,  to maintain an office or agency in respect of such Debt
Securities and to hold moneys for payment in trust) ("defeasance") or (ii) to be
released from its obligations with respect to such Debt Securities under certain
sections  of  such  Indenture   (including  the  restrictions   described  under
"--Certain  Covenants")  and,  if  provided  pursuant  to  such  Indenture,  its
obligations with respect to any other covenant,  and any omission to comply with
such  obligations  shall not  constitute  a default or an event of default  with
respect to such Debt Securities ("covenant defeasance"), in either case upon the
irrevocable  deposit by the Company with the applicable  Indenture  Trustee,  in
trust, of an amount,  in such currency or currencies,  currency unit or units of
composite  currency or currencies in which such Debt  Securities  are payable at
stated  maturity,  or  Government  Obligations  (as  defined  below),  or  both,
applicable  to such Debt  Securities  which  through  the  scheduled  payment of
principal and interest,  in accordance with their terms will provide money in an
amount sufficient to pay the principal of (and premium,  if any) and interest on
such Debt  Securities,  and any  mandatory  sinking fund or  analogous  payments
thereon, on the scheduled dates therefor.

     Such a trust may be  established  only if, among other things,  the Company
has  delivered  to the  applicable  Indenture  Trustee an opinion of counsel (as
specified in the  applicable  Indenture)  to the effect that the holders of such
Debt Securities will not recognize income,  gain or loss for U.S. federal income
tax purposes as a result of such  defeasance or covenant  defeasance and will be
subject to U.S.  federal income tax on the same amounts,  in the same manner and
at the same times as would  have been the case if such  defeasance  or  covenant
defeasance had not occurred.

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

     Unless otherwise provided in the applicable Prospectus Supplement, if after
the  Company  has  deposited  funds  and/or  Government  Obligations  to  effect
defeasance or covenant defeasance with respect to Debt Securities of any series,
(i) the holder of a Debt Security of such series is entitled to, and does, elect
pursuant  to the  applicable  Indenture  or the terms of such Debt  Security  to
receive  payment in a currency,  currency unit or composite  currency other than
that in which such  deposit has been made in respect of such Debt  Security,  or
(ii) a Conversion  Event (as defined  below)  occurs in respect of the currency,
currency  unit or composite  currency in which such  deposit has been made,  the
indebtedness represented by such Debt Security shall be deemed to have been, and
will be, fully discharged and satisfied  through the payment of the principal of
(and premium,  if any) and interest on such Debt Security as they become due out
of the proceeds yielded by converting the amount so deposited in respect of such
Debt Security into the  currency,  currency unit or composite  currency in which
such  Debt  Security  becomes  payable  as a  result  of such  election  or such
cessation of usage based on the applicable  market  exchange  rate.  "Conversion
Event" means the cessation of use of (i) a currency,  currency unit or composite
currency  both by the  government  of the country which issued such currency and
for the settlement of transactions by a central bank or other public

                                       10
<PAGE>

institutions of or within the international banking community, (ii) the ECU both
within the European  Monetary  System and for the settlement of  transactions by
public institutions of or within the European  Communities or (iii) any currency
unit or composite  currency other than the ECU for the purposes for which it was
established.  Unless otherwise provided in the applicable Prospectus Supplement,
all  payments of  principal  of (and  premium,  if any) and interest on any Debt
Security  that is payable in a foreign  currency  that  ceases to be used by its
government of issuance shall be made in U.S. dollars.

     In the event the Company  effects  covenant  defeasance with respect to any
Debt Securities and such Debt Securities are declared due and payable because of
the occurrence of any event of default other than the event of default described
in clause (d) under  "--Events  of Default,  Notice and Waiver"  with respect to
certain sections of the applicable  Indenture (which sections would no longer be
applicable to such Debt  Securities) or described in clause (g) under  "--Events
of Default,  Notice and Waiver" with  respect to any other  covenant as to which
there has been covenant defeasance,  the amount in such currency,  currency unit
or composite currency in which such Debt Securities are payable,  and Government
Obligations  on deposit with the Trustee,  will be sufficient to pay amounts due
on such Debt  Securities  at the time of their  stated  maturity  but may not be
sufficient  to pay  amounts  due on  such  Debt  Securities  at the  time of the
acceleration  resulting from such event of default.  However,  the Company would
remain liable to make payment of such amounts due at the time of acceleration.

     Notwithstanding the description set forth under "--Subordination" below, in
the  event  that  the  Company  deposits  money  or  Government  Obligations  in
compliance  with the applicable  Indenture in order to defease all or certain of
its  obligations  with  respect to any  Subordinated  Securities,  the moneys or
Government  Obligations  so deposited  will not be subject to the  subordination
provisions of such Indenture and the indebtedness evidenced by such Subordinated
Securities will not be subordinated in right of payment to the holders of senior
indebtedness to the extent of the moneys or Government Obligations so deposited.

     The applicable  Prospectus  Supplement may further describe the provisions,
if any,  permitting  such  defeasance  or  covenant  defeasance,  including  any
modifications  to the  provisions  described  above,  with  respect  to the Debt
Securities of or within a particular series.

Conversion Rights

     The terms and  conditions,  if any,  upon  which  the Debt  Securities  are
convertible  into Common or Preferred Shares will be set forth in the Prospectus
Supplement  relating  thereto.   Such  terms  will  include  whether  such  Debt
Securities are convertible into Common or Preferred Shares, the conversion price
(or manner of  calculation  thereof),  the conversion  period,  provisions as to
whether  conversion  will be at the option of the  holders of the  Company,  the
events requiring an adjustment of the conversion price and provisions  affecting
conversion  in the  event of the  redemption  of such  Debt  Securities  and any
restrictions on conversion,  including  restrictions directed at maintaining the
Company's REIT status.

Subordination

     The terms and conditions,  if any, upon which Subordinated  Securities of a
series  are  subordinated  to  Debt  Securities  of  other  series  or to  other
indebtedness  of the  Company  will be set  forth in the  applicable  Prospectus
Supplement  relating  thereto.  Such terms  will  include a  description  of the
indebtedness ranking senior to such Subordinated Securities, the restrictions on
payments to the holders of such  Subordinated  Securities  while a default  with
respect to such senior indebtedness is continuing, the restrictions,  if any, on
payments to the holders of such  Subordinated  Securities  following an Event of
Default,  and provisions  requiring holders of such  Subordinated  Securities to
remit certain payments to holders of senior indebtedness.

                                       11
<PAGE>

Global Securities

     If  so  set  forth  in  the  applicable  Prospectus  Supplement,  the  Debt
Securities  of a series  may be issued in whole or in part in the form of one or
more  Global  Securities  that  will be  deposited  with,  or on  behalf  of,  a
depositary  identified in the applicable  Prospectus Supplement relating to such
series.  Global Securities may be issued in either registered or bearer form and
in either  temporary or permanent  form.  The specific  terms of the  depositary
arrangement with respect to any such series of Debt Securities will be described
in the related Prospectus Supplement.

                              DESCRIPTION OF SHARES

     The Declaration of Trust ("Declaration") authorizes the Company to issue an
aggregate  of  200,000,000  shares  of  beneficial  interest  ("Shares")  in the
Company,  including (i) 100,000,000 Common Shares, par value $.01 per share, and
(ii) 100,000,000  Preferred  Shares,  without par value. As of December 22, 1997
there were 38,878,295 Shares outstanding, all of which were Common Shares.

     The  following  descriptions  do not purport to be complete and are subject
to,  and  qualified  in their  entirety  by  reference  to,  the  more  complete
descriptions thereof set forth in the Declaration. Capitalized terms not defined
herein are as defined in the Declaration.

     The  Declaration  authorizes  the Trustees to cause the  issuance,  without
shareholder approval, of classes or series of Preferred Shares from time to time
and to set (or change,  if the class or series has been previously  established)
the par value,  if any, the  preferences,  conversion  or other  rights,  voting
powers, restrictions,  limitations as to dividends,  qualifications or terms and
conditions of redemption of such  Preferred  Shares as are not prohibited by the
Declaration or applicable  law. In connection with the adoption of the Company's
shareholders rights plan (see "Redemption;  Trustees;  Business Combinations and
Control Share Acquisitions -- Rights Plan," below), the Trustees  established an
authorized but unissued class of 1,000,000  Preferred Shares, par value $.01 per
share (the "Junior Participating Preferred Shares"),  described more fully below
under  "Description  of  Preferred  Shares  --  Junior  Participating  Preferred
Shares,"  and as of  December  22,  1997 no other  class or series of  Preferred
Shares had been established.

     Except as otherwise determined by the Trustees with respect to any class or
series  of  Preferred  Shares,  all  Shares:  (i) will  participate  equally  in
dividends  payable to  shareholders  when, as and if declared by the Company and
ratably in net assets  available for distribution to shareholders on liquidation
or dissolution;  (ii) will have one vote per share on all matters submitted to a
vote of the  shareholders,  (iii) will not have cumulative  voting rights in the
election of Trustees;  and (iv) will have no preference,  conversion,  exchange,
sinking fund, redemption rights or preemptive or similar rights.

     Upon issuance in accordance  with the  Declaration,  applicable law and the
terms and conditions described in the related Prospectus Supplement,  the Shares
will be  fully  paid  and  nonassessable.  The  holders  of  Shares  do not have
preemptive  rights with  respect to the issuance of  additional  Shares or other
securities of the Company.

     The  Board  of  Trustees  may,  without  shareholder  approval,  amend  the
Declaration in order to increase the Company's authorized shares. Authorized but
unissued  Shares will be available for issuance from time to time by the Company
at the sole  discretion of its Board of Trustees for any proper  purpose,  which
could include raising capital,  providing  compensation or benefits to employees
and others,  paying  stock  dividends  or  acquiring  companies,  businesses  or
properties.  The  issuance  of such  unissued  Shares  could  have the effect of
diluting  the  earnings  per  share  and  book  value  per  share  of  currently
outstanding Shares.

     For certain other  information with respect to the Shares,  see "Limitation
of  Liabilities;  Shareholder  Liability" and  "Redemption;  Trustees;  Business
Combinations and Control Share Acquisitions" below.

                                       12
<PAGE>

                         DESCRIPTION OF PREFERRED SHARES

     The  following  description  of the  Preferred  Shares  sets forth  certain
general terms and  provisions of the  Preferred  Shares to which any  Prospectus
Supplement may relate.  The statements below describing the Preferred Shares are
in all respects  subject to and qualified in their  entirety by reference to the
applicable  provisions of the  Declaration  (including any  applicable  articles
supplementary) and By-Laws.

General

     Subject to limitations prescribed by Maryland law and the Declaration,  the
Trustees are authorized to cause the issuance,  without shareholder approval, of
classes  or  series  of  Preferred  Shares  and  to fix  the  number  of  shares
constituting  each such class or series of Preferred Shares and the designations
and powers, par value, if any, preferences and relative, participating, optional
or  other  specific  rights  and  qualifications,  limitations  or  restrictions
thereof,  including  such  provisions  as  may  be  desired  concerning  voting,
redemption,  dividends, dissolution or the distribution of assets, conversion or
exchange,  and such other  subjects or matters as may be fixed by resolutions of
the Trustees.

     Reference is made to the  Prospectus  Supplement  relating to the Preferred
Shares offered thereby for specific terms, including:

     (1)  the title of such Preferred Shares;

     (2)  the number of shares of such Preferred Shares offered,  the par value,
          if any, the liquidation preference per share and the offering price of
          such Preferred Shares;

     (3)  the dividend rate(s), period(s) and/or payment date(s) or method(s) of
          calculation thereof applicable to such Preferred Shares;

     (4)  the  date  from  which  dividends  on  such  Preferred   Shares  shall
          accumulate, if applicable;

     (5)  the  procedures  for any auction  and  remarketing,  if any,  for such
          Preferred Shares;

     (6)  the provision for a sinking fund, if any, for such Preferred Shares;

     (7)  the provision for redemption, if applicable, of such Preferred Shares;

     (8)  any listing of such Preferred Shares on any securities exchange;

     (9)  the terms and  conditions,  if  applicable,  upon which such Preferred
          Shares  will be  convertible  into  Common  Shares of the  Company  or
          another series of Offered  Securities,  including the conversion price
          (or manner of calculation thereof);

     (10) whether  interests in such  Preferred  Shares will be  represented  by
          Depositary Shares as more fully described below under  "Description of
          Depositary Shares";

     (11) any  other  specific  terms,  preferences,   rights,   limitations  or
          restrictions of such Preferred Shares;

     (12) a discussion of federal income tax  considerations  applicable to such
          Preferred Shares;

     (13) the relative  ranking and  preferences of such Preferred  Shares as to
          dividend rights and rights upon liquidation, dissolution or winding up
          of the affairs of the Company;

                                       13
<PAGE>

     (14) any limitations on issuance of any series of Preferred  Shares ranking
          senior to or on a parity  with such series of  Preferred  Shares as to
          dividend rights and rights upon liquidation, dissolution or winding up
          of the affairs of the Company; and

     (15) any limitations on direct or beneficial  ownership and restrictions on
          transfer, in each case as may be appropriate to preserve the status of
          the Company as a REIT.

     As described under "Description of Depositary  Shares," the Company may, at
its option,  elect to offer Depositary  Shares evidenced by depositary  receipts
("Depositary  Receipts"),   each  representing  a  fractional  interest  (to  be
specified in the Prospectus  Supplement relating to the particular series of the
Preferred  Shares) in a share of the particular  series of the Preferred  Shares
issued and deposited with a Depositary (as defined below).

Rank

     Unless otherwise determined by the Trustees and specified in the applicable
Prospectus  Supplement,  it is expected  that the  Preferred  Shares will,  with
respect to dividend rights and rights upon  liquidation,  dissolution or winding
up of the  Company,  rank (i)  senior to all  Common  Shares,  and to all equity
securities  ranking junior to such Preferred  Shares;  (ii) on a parity with all
equity securities issued by the Company the terms of which specifically  provide
that such equity  securities  rank on a parity with the  Preferred  Shares;  and
(iii) junior to all equity  securities  issued by the Company the terms of which
specifically  provide that such equity  securities  rank senior to the Preferred
Shares.

Dividends

     Holders of  Preferred  Shares of each series  shall be entitled to receive,
when,  as and if declared by the Company,  out of assets of the Company  legally
available for payment, cash dividends at such rates and on such dates as will be
set forth in the applicable Prospectus  Supplement.  Each such dividend shall be
payable to holders of record as they appear on the share  transfer  books of the
Company (or, if applicable,  on the records of the Depositary  referred to below
under "Description of Depositary Shares") on such record dates as shall be fixed
by the Trustees.

     Dividends  on any  series of the  Preferred  Shares  may be  cumulative  or
noncumulative,  as provided in the applicable Prospectus Supplement.  Dividends,
if  cumulative,  will be  cumulative  from and  after  the date set forth in the
applicable  Prospectus  Supplement.  If the Trustees  fail to declare a dividend
payable on a dividend  payment  date on any series of the  Preferred  Shares for
which  dividends  are  noncumulative,  then the  holders  of such  series of the
Preferred  Shares  will have no right to  receive a  dividend  in respect of the
dividend period ending on such dividend  payment date, and the Company will have
no  obligation  to pay the  dividend  accrued  for such  period,  whether or not
dividends on such series are  declared  payable on any future  dividend  payment
date.

     If Preferred Shares of any series are outstanding,  no full dividends shall
be  declared  or paid or set apart for  payment on the  Preferred  Shares of the
Company of any other series ranking, as to dividends, on a parity with or junior
to the Preferred  Shares of such series for any period unless (i) if such series
of Preferred Shares has a cumulative  dividend,  full cumulative  dividends have
been or contemporaneously are declared and paid or declared and a sum sufficient
for the payment  thereof set apart for such payment on the  Preferred  Shares of
such series for all past dividend  periods and the then current  dividend period
or (ii) if such series of Preferred Shares does not have a cumulative  dividend,
full   dividends   for  the  then   current   dividend   period   have  been  or
contemporaneously are declared and paid or declared and a sum sufficient for the
payment  thereof  set apart for such  payment  on the  Preferred  Shares of such
series.  When  dividends are not paid in full (or a sum sufficient for such full
payment is not so set  apart)  upon the  Preferred  Shares of any series and the
shares  of any  other  series  of  Preferred  Shares  ranking  on a parity as to
dividends with the Preferred Shares of such series,  all dividends declared upon
Preferred  Shares of such series and any other series of Preferred  Shares shall
in all cases bear to each other the same ratio that accrued  dividends per share
on the Preferred Shares of such series (which shall not include any accumulation

                                       14
<PAGE>

in respect of unpaid  dividends  for prior  dividend  periods if such  Preferred
Shares do not have a  cumulative  dividend)  and such other  series of Preferred
Shares bear to each other.  No  interest,  or sum of money in lieu of  interest,
shall be payable in respect of any  dividend  payment or payments  on  Preferred
Shares of such series which may be in arrears.

     Except as provided in the immediately  preceding  paragraph,  unless (i) if
such series of  Preferred  Shares has a  cumulative  dividend,  full  cumulative
dividends on the Preferred Shares of such series have been or  contemporaneously
are declared and paid or declared and a sum sufficient for the repayment thereof
set  apart  for  payment  for all past  dividend  periods  and the then  current
dividend  period,  and (ii) if such series of  Preferred  Shares does not have a
cumulative dividend,  full dividends on the Preferred Shares of such series have
been or contemporaneously are declared and paid or declared and a sum sufficient
for the payment  thereof set apart for  payment  for the then  current  dividend
period,  no dividends (other than in Common Shares or other shares of beneficial
interest  ranking junior to the Preferred  Shares of such series as to dividends
and upon liquidation)  shall be declared or paid or set aside for payment and no
other distribution shall be declared or made upon the Common Shares or any other
shares of beneficial  interest of the Company  ranking  junior to or on a parity
with the  Preferred  Shares of such series as to dividends or upon  liquidation,
nor shall any Common  Shares or any other shares of  beneficial  interest of the
Company  ranking  junior  to or on a parity  with the  Preferred  Shares of such
series as to dividends or upon  liquidation be redeemed,  purchased or otherwise
acquired for any consideration (or any moneys be paid to or made available for a
sinking fund for the  redemption of any shares of any such stock) by the Company
(except by conversion  into or exchange for other shares of beneficial  interest
of the  Company  ranking  junior to the  Preferred  Shares of such  series as to
dividends and upon liquidation and except pursuant to certain pro rata offers to
purchase  or a  concurrent  redemption  of all,  or a pro rata  portion  of, the
outstanding  shares of the Preferred  Shares of such series and any other series
of Preferred  Shares  ranking on a parity with such series as to  dividends  and
liquidation).

     Any dividend  payment made on shares of a series of Preferred  Shares shall
first be credited  against the  earliest  accrued but unpaid  dividend  due with
respect to shares of such series which remains payable.

Redemption

     If so provided  in the  applicable  Prospectus  Supplement,  the  Preferred
Shares will be subject to mandatory  redemption  or  redemption at the option of
the Company,  as a whole or in part,  in each case upon the terms,  at the times
and at the redemption prices set forth in such Prospectus Supplement.

     The Prospectus  Supplement relating to a series of Preferred Shares that is
subject to mandatory redemption will specify the number of such Preferred Shares
that shall be redeemed by the Company in each year commencing after a date to be
specified,  at a redemption  price per share to be  specified,  together with an
amount equal to all accrued and unpaid  dividends  thereon  (which shall not, if
such  Preferred  Shares  do  not  have  a  cumulative   dividend,   include  any
accumulation in respect of unpaid  dividends for prior dividend  periods) to the
date of  redemption.  The  redemption  price  may be  payable  in cash or  other
property,  as  specified  in  the  applicable  Prospectus  Supplement.   If  the
redemption price for Preferred Shares of any series is payable only from the net
proceeds of the issuance of shares of  beneficial  interest of the Company,  the
terms of such  Preferred  Shares may provide  that, if no such shares shall have
been issued or to the extent the net proceeds from any issuance are insufficient
to pay in full the aggregate  redemption  price then due, such Preferred  Shares
shall  automatically  and mandatorily be converted into shares of the applicable
class of beneficial  interest of the Company  pursuant to conversion  provisions
specified in the applicable Prospectus Supplement.

     Notwithstanding  the  foregoing,  unless  (i) if such  series of  Preferred
Shares has a cumulative dividend, full cumulative dividends on all shares of any
series of Preferred Shares shall have been or contemporaneously are declared and
paid or declared  and a sum  sufficient  for the  payment  thereof set apart for
payment for all past dividend periods and the then current dividend period,  and
(ii) if such series of  Preferred  Shares does not have a  cumulative  dividend,
full   dividends   on  the   Preferred   Shares  of  any  series  have  been  or
contemporaneously are

                                       15
<PAGE>

declared and paid or declared and a sum sufficient  for the payment  thereof set
apart for payment for the then current dividend period,  no shares of any series
of Preferred Shares shall be redeemed unless all outstanding Preferred Shares of
such series are simultaneously redeemed;  provided,  however, that the foregoing
shall not prevent the purchase or acquisition of Preferred Shares of such series
pursuant to a purchase  or  exchange  offer made on the same terms to holders of
all outstanding  Preferred Shares of such series, and, unless (i) if such series
of Preferred Shares has a cumulative dividend,  full cumulative dividends on all
outstanding   shares  of  any   series  of   Preferred   Shares   have  been  or
contemporaneously are declared and paid or declared and a sum sufficient for the
payment thereof set apart for payment for all past dividend periods and the then
current  dividend  period,  and (ii) if such series of Preferred Shares does not
have a cumulative dividend, full dividends on the Preferred Shares of any series
have been or  contemporaneously  are  declared  and paid or  declared  and a sum
sufficient  for the payment  thereof set apart for payment for the then  current
dividend period, the Company shall not purchase or otherwise acquire directly or
indirectly  any Preferred  Shares of such series  (except by conversion  into or
exchange for shares of beneficial  interest of the Company ranking junior to the
Preferred Shares of such series as to dividends and upon liquidation).

     If fewer than all of the outstanding  Preferred Shares of any series are to
be redeemed, the number of Preferred Shares to be redeemed will be determined by
the Company and such shares may be redeemed  pro rata from the holders of record
of such shares in  proportion  to the number of such shares held by such holders
(with adjustments to avoid redemption of fractional  shares) or by lot in manner
determined by the Company.

     Notice of  redemption  will be mailed at least 30 days but not more than 60
days before the redemption date to each holder of record of Preferred  Shares of
any series to be redeemed at the address  shown on the share  transfer  books of
the Company.  Each notice shall state:  (i) the redemption date; (ii) the number
of  shares  and  series  of the  Preferred  Shares  to be  redeemed;  (iii)  the
redemption price; (iv) the place or places where certificates for such Preferred
Shares are to be  surrendered  for  payment of the  redemption  price;  (v) that
dividends on the shares to be redeemed  will cease to accrue on such  redemption
date; and (vi) the date upon which the holder's conversion rights, if any, as to
such  shares  shall  terminate.  If fewer than all the  Preferred  Shares of any
series are to be redeemed,  the notice mailed to each such holder  thereof shall
also  specify  the  number of  Preferred  Shares to be  redeemed  from each such
holder.  If notice of redemption  of any Preferred  Shares has been given and if
the funds  necessary for such  redemption  have been set aside by the Company in
trust for the  benefit of the holders of any of the  Preferred  Shares so called
for redemption,  then from and after the redemption date dividends will cease to
accrue on such Preferred  Shares,  and any and all rights of the holders of such
shares will terminate, except the right to receive the redemption price.

Liquidation Preference

     Upon any voluntary or involuntary liquidation, dissolution or winding up of
the affairs of the Company,  then,  before any  distribution or payment shall be
made to the holders of any Common  Shares or any other class or series of shares
of beneficial  interest of the Company ranking junior to the Preferred Shares in
the  distribution of assets upon any  liquidation,  dissolution or winding up of
the Company, the holders of each series of Preferred Shares shall be entitled to
receive out of assets of the  Company  legally  available  for  distribution  to
shareholders  liquidating   distributions  in  the  amount  of  the  liquidation
preference per share (set forth in the applicable Prospectus  Supplement),  plus
an amount equal to all  dividends  accrued and unpaid  thereon  (which shall not
include  any  accumulation  in respect of unpaid  dividends  for prior  dividend
periods  if such  Preferred  Shares do not have a  cumulative  dividend).  After
payment of the full amount of the  liquidating  distributions  to which they are
entitled,  the holders of Preferred Shares will have no right or claim to any of
the remaining  assets of the Company.  In the event that upon any such voluntary
or involuntary  liquidation,  dissolution or winding up, the available assets of
the Company are insufficient to pay the amount of the liquidating  distributions
on all outstanding Preferred Shares and the corresponding amounts payable on all
shares of other  classes  or series of  shares  of  beneficial  interest  of the
Company  ranking on a parity with the Preferred  Shares in the  distribution  of
assets,  then the holders of the Preferred  Shares and all other such classes or
series  of  shares  of  beneficial  interest  shall  share  ratably  in any such
distribution of assets in proportion to the full  liquidating  distributions  to
which they would otherwise be respectively entitled.

                                       16
<PAGE>

     If liquidating distributions shall have been made in full to all holders of
Preferred Shares, the remaining assets of the Company shall be distributed among
the  holders  of any other  classes or series of shares of  beneficial  interest
ranking junior to the Preferred Shares upon liquidation,  dissolution or winding
up,  according  to their  respective  rights  and  preferences  and in each case
according  to  their  respective  number  of  shares.  For  such  purposes,  the
consolidation  or  merger  of the  Company  with  or into  any  other  trust  or
corporation, or the sale, lease or conveyance of all or substantially all of the
property  or  business  of the  Company,  shall not be deemed  to  constitute  a
liquidation, dissolution or winding up of the Company.

Voting Rights

     Holders of the Preferred Shares will not have any voting rights,  except as
set  forth  below  or as  otherwise  from  time  to time  required  by law or as
indicated in the applicable Prospectus Supplement.

     Unless otherwise  specified in the related  Prospectus  Supplement,  at any
time dividends on any Preferred  Shares shall be in arrears for six  consecutive
quarterly periods,  the holders of such Preferred Shares (voting separately as a
class with all other  series of preferred  shares upon which like voting  rights
have  been  conferred  and are  exercisable)  will be  entitled  to vote for the
election of two additional trustees of the Company at the next annual meeting of
shareholders  and at  each  subsequent  meeting  until  (i) if  such  series  of
Preferred Shares has a cumulative  dividend,  all dividends  accumulated on such
Preferred  Shares for the past  dividend  periods and the then current  dividend
period  shall have been  fully paid or  declared  and a sum  sufficient  for the
payment thereof set aside for payment or (ii) if such series of Preferred Shares
does not have a cumulative dividend,  four consecutive quarterly dividends shall
have been fully paid or declared and a sum  sufficient  for the payment  thereof
set aside for payment. In such case, the entire Board of Trustees of the Company
will be increased by two trustees.

     Unless provided  otherwise for any series of Preferred  Shares,  so long as
any Preferred  Shares  remain  outstanding,  the Company shall not,  without the
affirmative  vote or consent of the  holders of a majority of the shares of each
series of Preferred Shares outstanding at the time, given in person or by proxy,
either in writing or at a meeting  (such series  voting  separately as a class),
(i)  authorize or create,  or increase the  authorized  or issued amount of, any
class or series of shares of beneficial interest ranking prior to such series of
Preferred  Shares with respect to payment of dividends  or the  distribution  of
assets upon liquidation, dissolution or winding up, or reclassify any authorized
shares of  beneficial  interest of the Company into any such shares,  or create,
authorize or issue any obligation or security convertible into or evidencing the
right to purchase any such shares; or (ii) amend, alter or repeal the provisions
of the  Declaration or the articles  supplementary  for such series of Preferred
Shares, whether by merger,  consolidation or otherwise,  so as to materially and
adversely affect any right, preference, privilege or voting power of such series
of Preferred Shares or the holders thereof; provided, however, that any increase
in the amount of the authorized  Preferred Shares or the creation or issuance of
any  other  series  of  Preferred  Shares,  or any  increase  in the  amount  of
authorized  shares of such series or any other  series of Preferred  Shares,  in
each case  ranking on a parity  with or junior to the  Preferred  Shares of such
series with respect to payment of dividends or the  distribution  of assets upon
liquidation,  dissolution  or winding up, shall not be deemed to materially  and
adversely affect such rights, preferences, privileges or voting powers.

     The foregoing voting  provisions will not apply if, at or prior to the time
when the act with respect to which such vote would  otherwise be required  shall
be effected,  all  outstanding  shares of such series of Preferred  Shares shall
have been redeemed or called for redemption and sufficient funds shall have been
deposited in trust to effect such redemption.

     As more fully described under  "Description of Depositary Shares" below, if
the Company elects to issue Depositary  Shares,  each representing a fraction of
share of a series of the Preferred  Shares,  each such Depositary will in effect
be entitled to such fraction of a vote per Depositary Share.

                                       17
<PAGE>

Conversion Rights

     The  terms and  conditions,  if any,  upon  which  shares of any  series of
Preferred Shares may be converted into or exchanged for Common Shares or another
series of  Preferred  Shares or other series of Offered  Securities  will be set
forth in the Prospectus Supplement relating thereto. Such terms will include the
number of Common Shares or other  securities  into which the Preferred  Share is
convertible  or  exchangeable,  conversion  or  exchange  price  (or  manner  of
calculation  thereof),  the  conversion  or exchange  period,  provisions  as to
whether  conversion  or  exchange  will be at the  option of the  holders of the
Preferred  Shares or the  Company,  the events  requiring an  adjustment  of the
conversion or exchange price and provisions  affecting conversion or exchange in
the event of the redemption of such Preferred Shares.

Junior Participating Preferred Shares

     In connection with the adoption of the Company's  shareholders rights plan,
the Trustees  established an authorized  but unissued class of 1,000,000  Junior
Participating Preferred Shares. See "Redemption; Trustees; Business Combinations
and Control Share Acquisitions"  below.  Certain powers,  preferences and rights
and  certain   qualifications,   limitations  and  restrictions  of  the  Junior
Participating  Preferred  Shares,  when  and  if  issued,  are as  follows.  The
statements below with respect to the Junior  Participating  Preferred Shares are
in all respects  subject to and qualified in their  entirety by reference to the
applicable  provisions of the  Declaration  (including the  applicable  articles
supplementary) and By-Laws.

     The holder of each  Junior  Participating  Preferred  Share is  entitled to
quarterly  dividends in the greater  amount of $5.00 or 100 times the  quarterly
per share dividend, whether cash or otherwise,  declared upon the Common Shares.
Dividends on the Junior Participating Preferred Shares are cumulative.  Whenever
dividends  on the Junior  Participating  Preferred  Shares are in  arrears,  the
Company,  among other things,  is prohibited from declaring or paying dividends,
making other  distributions  on, or redeeming or  repurchasing  Common Shares or
other Shares ranking junior to the Junior  Participating  Preferred Shares,  and
upon failure of the Company to pay such dividends for six quarters,  the holders
of the Junior  Participating  Preferred  Shares  will be  entitled  to elect two
trustees. The holder of each Junior Participating Preferred Share is entitled to
100 votes on all matters submitted to a vote of the shareholders, voting (unless
otherwise provided in the Declaration or by law) together with holders of Common
Shares as one class. Upon liquidation, dissolution or winding up of the Company,
the  holders  of  Junior  Participating  Preferred  Shares  are  entitled  to  a
liquidation  preference  of $100 per share  plus the amount of any  accrued  and
unpaid dividends and distributions thereon (the "Liquidation Preference"), prior
to payment  of any  distribution  in  respect of the Common  Shares or any other
Shares ranking junior to the Junior  Participating  Preferred Shares.  Following
payment of the  Liquidation  Preference,  the  holders  of Junior  Participating
Preferred Shares are not entitled to further  distributions until the holders of
Common  Shares  shall  have  received  an amount per share  (the  "Common  Share
Adjustment")  equal to the  Liquidation  Preference  divided by 100 (adjusted to
reflect  events such as share  splits,  share  dividends  and  recapitalizations
affecting the Common Shares) (the "Adjustment Number"). Following the payment of
the full amount of the Liquidation  Preference and the Common Share  Adjustment,
holders of Junior  Participating  Preferred  Shares are entitled to  participate
proportionately  on a per share  basis  with  holders  of  Common  Shares in the
distribution  of the remaining  assets to be distributed in respect of Shares in
the ratio of the Adjustment Number to one, respectively. The powers, preferences
and  rights of the Junior  Participating  Preferred  Shares  are  subject to the
superior  powers,  preferences  and  rights  of any  senior  series  or class of
Preferred  Shares which the Trustees  shall,  from time to time,  authorize  and
issue.

                        DESCRIPTION OF DEPOSITARY SHARES

General

     The description set forth below and in any applicable Prospectus Supplement
of certain  provisions of any Deposit  Agreement  (as defined  below) and of the
Depositary Shares and Depositary Receipts does not purport to be complete and is
subject to and  qualified  in its  entirety by reference to the forms of Deposit
Agreement and
                                       18

<PAGE>

Depositary  Receipts  relating to each series of the Preferred Shares which have
been or will be  filed  with  the  Commission  at or  prior  to the  time of the
offering of such series of the Preferred Shares.

     The Company  may, at its option,  elect to offer  fractional  interests  in
shares of Preferred Shares, rather than shares of Preferred Shares. In the event
such  option is  exercised,  the  Company  will  provide  for the  issuance by a
Depositary (as defined  below) to the public of receipts for Depositary  Shares,
each of which  will  represent  a  fractional  interest  to be set  forth in the
Prospectus  Supplement  relating to a particular  series of the Preferred Shares
which will be filed with the  Commission at or prior to the time of the offering
of such series of the Preferred Shares as described  below.  Preferred Shares of
each series  represented by Depositary Shares will be deposited under a separate
deposit  agreement  (each,  a "Deposit  Agreement")  among the  Company  and the
depositary named therein (a "Depositary"). The Prospectus Supplement relating to
a series  of  Depositary  Shares  will set  forth  the name and  address  of the
Depositary. Subject to the terms of the applicable Deposit Agreement, each owner
of a Depositary Share will be entitled, in proportion to the fractional interest
of a share of a  particular  series  of  Preferred  Shares  represented  by such
Depositary  Share,  to all the rights and  preferences  of the Preferred  Shares
represented by such Depositary Shares (including dividend,  voting,  conversion,
redemption and liquidation rights).

     The  Depositary  Shares will be evidenced  by  Depositary  Receipts  issued
pursuant to the  applicable  Deposit  Agreement.  Upon  surrender of  Depositary
Receipts  at the  office  of the  Depositary  and upon  payment  of the  charges
provided in the Deposit Agreement and subject to the terms thereof,  a holder of
Depositary Shares is entitled to have the Depositary  deliver to such holder the
whole shares of Preferred Shares  underlying the Depositary  Shares evidenced by
the surrendered Depositary Receipts.

Dividends and Other Distributions

     A Depositary  will be required to  distribute  all cash  dividends or other
cash distributions received in respect of the applicable Preferred Shares to the
record holders of Depositary  Receipts  evidencing the related Depositary Shares
in proportion to the number of such  Depositary  Receipts owned by such holders,
subject to certain obligations of holders to file proofs, certificates and other
information  and to  pay  certain  charges  and  expenses  to  such  Depositary.
Fractions will be rounded down to the market whole cent.

     In the event of a  distribution  other than in cash, a  Depositary  will be
required  to  distribute  property  received  by it to  the  record  holders  of
Depositary Receipts entitled thereto,  subject to certain obligations of holders
to file proofs,  certificates  and other  information and to pay certain charges
and expenses to such  Depositary,  unless such Depositary  determines that it is
not feasible to make such distribution,  in which case such Depositary may, with
the approval of the Company,  sell such property and distribute the net proceeds
from such sale to such holders.

     No  distributions  will be made in respect of any  Depositary  Share to the
extent that it  represents  any  Preferred  Shares which have been  converted or
exchanged.  The Deposit Agreement will also contain  provisions  relating to the
manner in which any  subscription  or similar  rights  offered by the Company to
holders of the Preferred Shares shall be made available to holders of Depositary
Shares.

Redemption of Depositary Shares

     If a series of the Preferred  Shares  underlying the  Depositary  Shares is
subject to redemption,  the Depositary Shares will be redeemed from the proceeds
received by the Depositary  resulting from the redemption,  in whole or in part,
of such series of the Preferred  Shares held by the  Depositary.  The Depositary
shall mail notice of redemption not less than 30 and not more than 60 days prior
to the date  fixed  for  redemption  to the  record  holders  of the  Depositary
Receipts  evidencing the Depositary Shares to be so redeemed at their respective
addresses  appearing  in  the  Depositary's  books.  The  redemption  price  per
Depositary  Share will be equal to the  applicable  fraction  of the  redemption
price per share  payable  with respect to such series of the  Preferred  Shares.
Whenever the Company redeems shares of Preferred  Shares held by the Depositary,
the  Depositary  will  redeem  as of the  same  redemption  date the  number  of
Depositary  Shares relating to shares of Preferred  Shares so redeemed.  If less
than
                                       19
<PAGE>

all of the Depositary  Shares are to be redeemed,  the  Depositary  Shares to be
redeemed  will  be  selected  by lot or pro  rata  as may be  determined  by the
Depositary.

     After the date fixed for  redemption,  the Depositary  Shares so called for
redemption  will no longer be deemed  to be  outstanding  and all  rights of the
holders of the Depositary Shares and the related Depositary Receipts will cease,
except the right to receive  the moneys  payable  upon such  redemption  and any
money or other  property  to which the  holders of such  Depositary  Shares were
entitled upon such redemption upon surrender to the Depositary of the Depositary
Receipts evidencing such Depositary Shares.

Voting of the Preferred Shares

     Upon  receipt  of  notice  of any  meeting  at  which  the  holders  of the
applicable  Preferred Shares are entitled to vote, a Depositary will be required
to mail the  information  contained  in such  notice of  meeting  to the  record
holders of the  Depositary  Receipts  evidencing  the  Depositary  Shares  which
represent  such  Preferred  Shares.  Each record holder of  Depositary  Receipts
evidencing  Depositary Shares on the record date (which will be the same date as
the record date for the  Preferred  Shares)  will be  entitled to instruct  such
Depositary as to the exercise of the voting  rights  pertaining to the amount of
Preferred Shares represented by such holder's Depositary Shares. Such Depositary
will  endeavor,  insofar as  practical,  to vote the amount of Preferred  Shares
represented by such Depositary Shares in accordance with such instructions,  and
the  Company  will  agree to take all  reasonable  action  which  may be  deemed
necessary by such  Depositary in order to enable such  Depositary to do so. Such
Depositary  will be  required  to abstain  from  voting the amount of  Preferred
Shares  represented by such Depositary  Shares to the extent it does not receive
specific  instructions from the holders of Depositary  Receipts  evidencing such
Depositary  Shares.  The Depositary  will not be responsible  for any failure to
carry out any  instruction to vote, or for the manner or effect of any such vote
made,  as long as such action or non-action is in good faith and does not result
from gross negligence or willful misconduct of such Depositary.

Liquidation Preference

     In the event of the liquidation,  dissolution or winding up of the Company,
whether  voluntary or involuntary,  the holders of each Depositary Share will be
entitled to the fraction of the liquidation  preference  accorded each Preferred
Share  represented  by such  Depositary  Share,  as set forth in the  applicable
Prospectus Supplement.

Conversion of Preferred Shares

     The  Depositary   Shares,   as  such,  will  not  be  convertible  into  or
exchangeable  for Common  Shares,  Preferred  Shares or any other  securities or
property  of the  Company.  Nevertheless,  if so  specified  in  the  applicable
Prospectus  Supplement  relating  to  an  offering  of  Depositary  Shares,  the
Depositary  Receipts may be  surrendered  by holders  thereof to the  applicable
Depositary with written  instructions to such Depositary to instruct the Company
to cause  conversion  or exchange of the  Preferred  Shares  represented  by the
Depositary Share evidenced by such Depositary Receipts into Common Shares, other
shares of Preferred  Shares of the Company or such other  securities as shall be
provided  therein,  and  the  Company  will  agree  that  upon  receipt  of such
instruction  and any  amounts  payable  in  respect  thereof,  it will cause the
conversion or exchange  thereof  utilizing the same procedures as those provided
for delivery of Preferred  Shares to effect such conversion or exchange.  If the
Depositary Shares evidenced by a Depositary  Receipt are to be converted in part
only, a new  Depositary  Receipt or  Depositary  Receipts will be issued for any
Depositary Shares not to be converted.

Amendment and Termination of a Deposit Agreement

     Any  form  of  Depositary  Receipt  evidencing  Depositary  Shares  and any
provision of a Deposit  Agreement will be permitted at any time to be amended by
agreement  between the  Company  and the  applicable  Depositary.  However,  any
amendment  that  materially  and  adversely  alters the rights of the holders of
Depositary Shares will
                                       20
<PAGE>

not be effective unless such amendment has been approved by the existing holders
of at least a majority of the voting power of the applicable  Depositary  Shares
then outstanding.  Every holder of an outstanding Depositary Receipt at the time
any such amendment becomes effective shall be deemed, by continuing to hold such
Depositary  Receipt,  to consent and agree to such  amendment and to be bound by
the applicable Deposit Agreement as amended thereby.

     Any Deposit  Agreement  may be terminated by the Company upon not less than
30  days'  prior  written  notice  to the  applicable  Depositary  if  (i)  such
termination  is  necessary to preserve  the  Company's  status as a REIT or (ii)
holders  of a majority  of each  series of  Preferred  Shares  affected  by such
termination  consent to such  termination,  whereupon  such  Depositary  will be
required to deliver or make  available  to each holder of  Depositary  Receipts,
upon  surrender of the Depositary  Receipts held by such holder,  such number of
whole or fractional Preferred Shares as are represented by the Depositary Shares
evidenced by such Depositary  Receipts  together with any other property held by
such  Depositary  with receipts to such  Depositary  Receipts.  The Company will
agree in each Depositary  Agreement that if such Deposit Agreement is terminated
to preserve the Company's  status as a REIT,  then the Company will use its best
efforts to list the  Preferred  Shares  issued  upon  surrender  of the  related
Depositary  Shares on a national  securities  exchange.  In addition,  a Deposit
Agreement will automatically  terminate if (i) all outstanding Depositary Shares
thereunder  shall  have  been  redeemed;  (ii)  there  shall  have  been a final
distribution in respect of the related  Preferred  Shares in connection with any
liquidation,  dissolution  or winding up of the  Company  and such  distribution
shall have been distributed to the holders of Depositary Receipts evidencing the
Depositary Shares underlying such Preferred Shares; or (iii) each of the related
Preferred  Shares shall have been converted or exchanged into  securities not so
represented by Depositary Shares.

Charges of a Depositary

     The Company will pay all transfer and other taxes and governmental  charges
arising  solely from the  existence of a Deposit  Agreement.  In  addition,  the
Company will pay the fees and expenses of a Depositary  in  connection  with the
initial deposit of the Preferred Shares and any redemption of Preferred  Shares.
However,  holders  of  Depositary  Receipts  will  pay  any  transfer  or  other
governmental  charges and the fees and expenses of a  Depositary  for any duties
requested by such holders to be performed  which are outside of those  expressly
provided for in the applicable Deposit Agreement.

Resignation and Removal of Depositary

     A Depositary  may resign at any time by delivering to the Company notice of
its election to do so, and the Company may at any time remove a Depositary,  any
such  resignation or removal to take effect upon the  appointment of a successor
Depositary.  A successor  Depositary will be required to be appointed  within 60
days after delivery of the notice of resignation or removal and will be required
to be a bank or trust company  having its principal  office in the United States
and having a combined capital and surplus of at least $50 million.

Miscellaneous

     A Depositary will be required to forward to holders of Depositary  Receipts
any  reports and  communications  from the  Company  which are  received by such
Depositary with respect to the related Preferred Shares.

     Neither  Depositary  nor the Company will be liable if it is prevented from
or delayed in, by law or any  circumstances  beyond its control,  performing its
obligations  under a Deposit  Agreement.  The  obligations  of the Company and a
Depositary under a Deposit  Agreement will be limited to performing their duties
thereunder in good faith and without gross negligence or willful misconduct, and
neither the Company nor any applicable Depositary will be obligated to prosecute
or defend any legal proceeding in respect of any Depositary Receipts, Depositary
Shares or Preferred Shares represented thereby unless satisfactory  indemnity is
furnished.  The Company and any Depositary  will be permitted to rely on written
advice of counsel or accountants,  or information provided by persons presenting
Preferred Shares represented thereby for deposit, holders of Depositary Receipts
or other persons
                                       21
<PAGE>
believed  in good  faith  to be  competent  to  give  such  information,  and on
documents believed in good faith to be genuine and signed by a proper party.

     In the event a Depositary  shall receive  conflicting  claims,  requests or
instructions from any holders of Depositary  Receipts,  on the one hand, and the
Company,  on the other hand,  such  Depositary  shall be entitled to act on such
claims, requests or instructions received from the Company.

                             DESCRIPTION OF WARRANTS

     The Company may issue, together with any other series of Offered Securities
or  separately,  Warrants  entitling  the holder to purchase from or sell to the
Company,  or to receive from the Company the cash value of the right to purchase
or sell, Debt Securities,  Preferred Shares, Depositary Shares or Common Shares.
The  Warrants  are to be  issued  under  Warrant  Agreements  (each  a  "Warrant
Agreement")  to be entered  into  between the  Company and a warrant  agent (the
"Warrant  Agent"),  all as set  forth in the  applicable  Prospectus  Supplement
relating to the particular issue of Warrants.

     In  the  case  of  each  series  of  Warrants,  the  applicable  Prospectus
Supplement  will  describe  the terms of the  Warrants  being  offered  thereby,
including  the  following,  if  applicable:  (i) the  offering  price;  (ii) the
currencies  in which  such  Warrants  are being  offered;  (iii)  the  number of
Warrants offered; (iv) the securities underlying the Warrants;  (v) the exercise
price,  the  procedures for exercise of the Warrants and the  circumstances,  if
any,  that will cause the Warrants to be deemed to be  automatically  exercised;
(vi) the date on which the right shall  expire;  (vii) U.S.  federal  income tax
consequences; and (viii) other terms of the Warrants.

     Warrants may be exercised at the appropriate office of the Warrant Agent or
any other office indicated in the applicable Prospectus Supplement. Prior to the
exercise of Warrants entitling the holder to purchase any securities, holders of
such  Warrants  will not have any of the  rights of  holders  of the  securities
purchasable  upon such  exercise  and will not be entitled  to payments  made to
holders of such securities.

     The Warrant  Agreements may be amended or supplemented  without the consent
of the holders of the Warrants issued  thereunder to effect changes that are not
inconsistent  with the  provisions  of the  Warrants  and that do not  adversely
affect the interests of the holders of the Warrants.

                 LIMITATION OF LIABILITY; SHAREHOLDER LIABILITY

     The Maryland  REIT Law permits a Maryland real estate  investment  trust to
include in its  Declaration  of Trust a provision  limiting the liability of its
trustees and officers to the trust and its shareholders for money damages except
for liability resulting from (a) actual receipt of an improper benefit or profit
in  money,  property  or  services  or  (b)  active  and  deliberate  dishonesty
established by a final  judgment as being  material to the cause of action.  The
Declaration of Trust of the Company  contains such a provision which  eliminates
such  liability to the maximum  extent  permitted by the Maryland  REIT Law. The
Maryland  REIT  Law  provides  that  no  shareholder  shall  be  liable  for any
obligation of a Maryland real estate investment  trust.  Counsel has advised the
Company that in some jurisdictions the possibility exists that shareholders of a
non-corporate  entity  such  as the  Company  may be  held  liable  for  acts or
obligations  of the  Company.  Counsel has advised the Company that the State of
Texas may not give effect to the limitation of shareholder liability afforded by
Maryland law, but that Texas law would likely recognize contractual  limitations
of liability such as those discussed  above.  The Company intends to conduct its
business in a manner designed to minimize  potential  shareholder  liability by,
among other things,  inserting  appropriate  provisions in written agreements of
the Company;  however,  no assurance  can be given that  shareholders  can avoid
liability in all instances in all jurisdictions.

     The  Declaration  provides that,  upon payment by a shareholder of any such
liability,  the shareholder will be entitled to  indemnification by the Company.
There can be no assurance  that, at the time any such  liability  arises,  there
will  be  assets  of  the   Company   sufficient   to  satisfy   the   Company's
indemnification obligation. The Trustees

                                       22
<PAGE>

intend to conduct the operations of the Company,  with the advice of counsel, in
such  a way as to  minimize  or  avoid,  as far  as  practicable,  the  ultimate
liability  of the  shareholders  of the  Company.  The Trustees do not intend to
provide insurance covering such risks to the shareholders.

                   REDEMPTION; TRUSTEES; BUSINESS COMBINATIONS
                         AND CONTROL SHARE ACQUISITIONS

Restrictions on Transfer

     For the  Company to qualify as a REIT under the  Internal  Revenue  Code of
1986,  as  amended  (the  "Code"),  no more  than 50% in value of its  shares of
beneficial interest (after taking into account options to acquire Shares) may be
owned,  directly or indirectly,  by five or fewer individuals (as defined in the
Code to include  certain  entities and  constructive  ownership  among specified
family  members)  during the last half of a taxable  year  (other than the first
taxable year) or during a  proportionate  part of a shorter  taxable  year.  The
Shares must also be  beneficially  owned  (other  than during the first  taxable
year) by 100 or more  persons  during  at least  335 days of a  taxable  year or
during a proportionate part of a shorter taxable year. The Declaration  contains
restrictions  on the  acquisition of Shares  intended to ensure  compliance with
these requirements.

     Subject to certain exceptions  specified in the Declaration,  no holder may
own, directly or indirectly,  more than 9.8% in number, value or voting power of
the issued and outstanding  Shares of the Company (the  "Ownership  Limitation")
other than (a) HRP,  Advisors and their  affiliates,  including  persons who are
deemed to have  beneficial  ownership  of the Shares  directly  owned by HRP and
Advisors  pursuant  to the  attribution  provisions  of the Code  and (b)  other
shareholders exempted by majority vote of the Trustees (the "Exempted Persons").
Any person  must give  written  notice to the Company no later than the 15th day
prior to any  proposed  transfer  which,  if  consummated,  would result in such
person owning Shares in excess of the Ownership Limitation,  provided,  however,
that the Trustees may waive the prior notice requirement upon determination that
such waiver is in the best interests of the Company.  The  Declaration  does not
specify factors to be considered in granting any such exemption or waiver of the
prior notice  requirement.  In deciding whether to grant an exemption or waiver,
the Trustees may consider, among other factors, the general reputation and moral
character of the person  requesting  an exemption,  whether  ownership of Shares
would be direct or through  ownership  attributed  to such person,  whether such
person's  ownership of Shares would  adversely  affect the Company's  ability to
acquire  additional hotels or engage in other  transactions and whether granting
an exemption for the person  requesting an exemption would adversely  affect any
existing contractual  arrangement of the Company. In addition,  the Trustees may
require such opinions of counsel,  affidavits,  undertakings  or arrangements as
they may deem  necessary  or  advisable  in order to  determine  or  ensure  the
Company's status as a REIT or otherwise.

     The Declaration  contains  provisions  designed to ensure that a transferee
attempting to acquire Shares in violation of the Ownership  Limitation  will not
acquire rights or economic interests in the Shares purportedly transferred.  The
Declaration defines a transfer to include any sale, transfer,  gift, assignment,
devise or other disposition of Shares, whether voluntary or involuntary, whether
of record or  beneficial  ownership  and  whether  effected  constructively,  by
operation of law or  otherwise.  Under the  Declaration,  any transfer of Shares
that  could,  in the  opinion  of the  Trustees,  result in a  violation  of the
Ownership Limitation (as well as any transfer which could, in the opinion of the
Trustees, cause the Company to be treated as "closely held" under Section 856(h)
of the Code or cause the Shares to be held by fewer than 100 persons),  and that
is not otherwise  permitted under the Declaration will result in the designation
of excess shares ("Excess Shares").  The Declaration provides that Excess Shares
will be  transferred by operation of law to a person that is  unaffiliated  with
the Company and unaffiliated with the intended  transferee as trustee of a trust
for the  exclusive  benefit of one or more  organizations  described in Sections
170(b)(1)(a) and 170(c) of the Code ("Charitable Beneficiary") designated by the
Company.  The trustee of the trust will be deemed to own these Excess Shares for
the benefit of the  Charitable  Beneficiary  on the day prior to the date of the
violative  transfer.  Any dividends or  distributions  paid prior to the Company
discovering  that such  Excess  Shares  were held in trust must be repaid by the
intended  transferee to the Company and any dividend declared but unpaid will be
rescinded  as void ab  initio  with  respect  to the  intended  transferee.  The
Declaration provides that
                                       23
<PAGE>

any  dividends so  disgorged or rescinded  will then be paid over to the trustee
and held in trust  for the  Charitable  Beneficiary,  that any vote  taken by an
intended  transferee  prior to the discovery by the Company that the Shares were
held in trust will be rescinded as void ab initio,  and the intended  transferee
will be deemed to have  given an  irrevocable  proxy to the  trustee to vote the
Shares for the benefit of the  Charitable  Beneficiary.  At the direction of the
Company, the trustee of the trust is required to transfer the Shares held in the
trust to a person whose  ownership of the Shares will not violate the  Ownership
Limitation.  If  such a  transfer  is  made,  the  interest  of  the  Charitable
Beneficiary  would  terminate  and  proceeds of the sale would be payable to the
intended transferee and to the Charitable  Beneficiary.  The intended transferee
would  receive the lesser of (i) the price paid by the intended  transferee  for
the Shares, or if the intended transferee did not give value for the Shares, the
market price of the Shares on the day of the event causing the Shares to be held
in trust and (ii) the price per Share  received by the trustee  from the sale or
other  disposition  of the Shares held in trust.  Any  proceeds in excess of the
amount  payable to the  intended  transferee  will be payable to the  Charitable
Beneficiary. The Declaration also provides that all Shares held in trust for the
benefit of the Charitable Beneficiary will be offered for sale to the Company or
its designee for a 90-day period, at the lesser of the price paid for the Shares
by the intended  transferee  and the market price of the Shares on the date that
the Company accepts the offer. This period will commence on the date the Company
receives  notice  of the event  causing  the  Shares  to be held in  trust.  All
certificates  representing Shares are required to bear a legend referring to the
restrictions  described  above.  Pursuant  to the  Code,  all  persons  who own,
directly or by virtue of the attribution  provisions of the Code, 5% or more (or
such other  percentage  between  1/2 of 1% and 5%, as  provided in the rules and
regulations  promulgated  under  the  Code)  of  the  number  or  value  of  the
outstanding Shares must give written notice thereof to the Company by January 31
of each year. In addition,  the  Declaration  provides that each  shareholder is
required upon demand to disclose to the Company in writing such information with
respect to the ownership of Shares as the Trustees deem reasonably  necessary to
comply with the provisions of the Code  applicable to a REIT, to comply with the
requirements of any taxing authority or governmental  agency or to determine any
such compliance.

     These restrictions will not preclude settlement of transactions through the
NYSE.

Shareholder Proposals

     The Company's  Bylaws  establish an advance notice procedure with regard to
shareholder  proposals  to be  brought  before an annual or  special  meeting of
shareholders (the "Business  Procedure").  The Business  Procedure provides that
shareholder  proposals,  other than proposals  timely submitted for inclusion in
the Company's proxy  statement,  must be submitted in writing in a timely manner
in order to be considered at any such  meeting.  To be timely,  such notice of a
shareholder  proposal  with  respect to an annual  meeting  must  (with  limited
exceptions)  be  received by the Company not less than 90 days nor more than 120
days prior to the anniversary date of the immediately  preceding annual meeting.
Nothing in the Business Procedure will preclude discussion by any shareholder of
any proposal  properly  made or brought  before an annual  meeting in accordance
with the above mentioned procedure.

Trustees

     Under the  Declaration,  the number of  Trustees  may be fixed from time to
time by two thirds of the  Trustees  or by  amendment  of the  Declaration  duly
adopted  by holders of two thirds of the  outstanding  Shares  entitled  to vote
thereon,  with  a  minimum  of  three  and a  maximum  of  seven  Trustees.  The
Declaration  provides  that a  majority  of the  Trustees  must  be  Independent
Trustees  (as  defined  in the  Declaration).  The  terms  of the  Trustees  are
staggered. As the Trustees' terms expire, replacements are elected by a majority
of the votes cast. The Declaration provides that a majority of the Trustees then
in office shall have the authority to fill any vacancies on the Board, including
vacancies  created by an increase in the number of Trustees.  In  addition,  the
Declaration provides that a new Trustee elected to fill a vacancy will serve for
the  remainder  of the full term of his or her class and that no decrease in the
number  of  Trustees  shall  shorten  the term of an  incumbent.  Moreover,  the
Declaration  provides that Trustees may be removed with or without cause only by
the  affirmative  vote of all the  remaining  Trustees  or by  holders of Shares
representing  two-thirds of the total votes authorized to be cast by Shares then
outstanding and entitled to vote thereon, voting as a single class.

                                       24

<PAGE>

     The Company's  Bylaws  establish an advance notice procedure with regard to
the nomination,  other than by the Board of Trustees, of candidates for election
as Trustees (the "Nomination Procedure") which are not included in the Company's
proxy  statement.  The Nomination  Procedure  provides that only persons who are
nominated by or at the  direction of the Board of Trustees,  or by a shareholder
of record on the date of the  giving of the notice  who has given  timely  prior
written  notice to the  Secretary  of the Company  prior to the meeting at which
Trustees are to be elected,  will be eligible  for  election as Trustees.  To be
timely,  notice of a  shareholder's  nomination in the case of an annual meeting
must (with limited  exceptions) be received by the Company not less than 90 days
nor  more  than  120  days  prior  to the  anniversary  date of the  immediately
preceding  annual  meeting.  Nothing in the  Nomination  Procedure will preclude
discussion by any shareholder of any nomination  properly made or brought before
an annual or special meeting in accordance with the above mentioned procedures.

Indemnification of Trustees and Officers

     The  Declaration  obligates  the Company to  indemnify (i) its Trustees and
officers to the full extent  permitted by Maryland law,  including in respect of
the advancement of expenses,  and (ii) other employees and agents to such extent
as shall be  authorized  by the Trustees or the Bylaws and permitted by Maryland
law. The Maryland  REIT Law permits a Maryland real estate  investment  trust to
indemnify and advance expenses to its trustees,  officers,  employees and agents
to the same extent as permitted by the Maryland General Corporation Law ("MGCL")
for  directors  and  officers  of  Maryland  corporations.  The MGCL  permits  a
corporation  to indemnify its present and former  directors and officers,  among
others, against judgments, penalties, fines, settlements and reasonable expenses
actually incurred by them in connection with any proceeding to which they may be
made a party by reason of their service in those or other  capacities  unless it
is  established  that (a) the act or  omission  of the  director  or officer was
material to the matter  giving rise to the  proceeding  and (i) was committed in
bad faith or (ii) was the result of active and  deliberate  dishonesty,  (b) the
director or officer  actually  received an improper  personal  benefit in money,
property or services or (c) in the case of any criminal proceeding, the director
or  officer  had  reasonable  cause  to  believe  that the act or  omission  was
unlawful.  However, under the MGCL, a Maryland corporation may not indemnify for
an adverse  judgment  in a suit by or in the right of the  corporation  or for a
judgment  of  liability  on the  basis  that  personal  benefit  was  improperly
received, unless in either case a court orders indemnification and then only for
expenses.  In addition,  the MGCL permits a  corporation  to advance  reasonable
expenses  to a  director  or  officer  upon the  corporation's  receipt of (a) a
written  affirmation by the director or officer of his good faith belief that he
has met the standard of conduct necessary for indemnification by the corporation
and (b) a written  undertaking  by or on his behalf to repay the amount  paid or
reimbursed by the  corporation  if it shall  ultimately  be determined  that the
standard of conduct was not met. The Company has the right but has no obligation
to obtain insurance including general liability,  securities liability,  trustee
and officer liability and other insurance in such amounts and with such carriers
as the Company  reasonably  deems  appropriate in order to support the indemnity
described above.

     Insofar as indemnification for liabilities arising under the Securities Act
may be  permitted  to  Trustees,  officers  or persons  controlling  the Company
pursuant to the foregoing provisions,  the Company has been informed that in the
opinion of the  Commission  such  indemnification  is against  public  policy as
expressed in the Securities Act and is therefore unenforceable.

Business Combinations

     Under the MGCL, as applicable  to Maryland real estate  investment  trusts,
certain  "business  combinations"  (including  certain mergers,  consolidations,
share exchanges,  asset  transfers,  issuances and  reclassifications  of equity
securities)  between a Maryland real estate  investment trust and any person who
beneficially  owns 10% or more of the voting  power of the trust's  shares or an
affiliate of the trust who, at any time within the two-year  period prior to the
date in question, was the beneficial owner of 10% or more of the voting power of
the then  outstanding  voting  shares of  beneficial  interest  of the trust (an
"Interested  Shareholder")  or an affiliate of the  Interested  Shareholder  are
prohibited  for five years after the most  recent  date on which the  Interested
Shareholder becomes an Interested Shareholder. The Declaration provides that the
Company has elected not to be governed by these provisions of the MGCL.

                                       25
<PAGE>

Control Share Acquisitions

     The MGCL, as applicable to Maryland real estate investment trusts, provides
that "control  shares" of a Maryland real estate  investment trust acquired in a
"control share  acquisition" have no voting rights except to the extent approved
by a vote  of  two-thirds  of the  votes  entitled  to be  cast  on the  matter,
excluding shares of beneficial interest owned by the acquiror, by officers or by
trustees  who are  employees of the trust.  The  Declaration  provides  that the
Company  has  elected  not to be  governed  by  the  control  share  acquisition
provisions of the MGCL.

Rights Plan

     In May 1997,  the Trustees  adopted a shareholder  rights plan (the "Rights
Plan").   The  Rights  Plan  provides  for  the   distribution   of  one  Junior
Participating  Preferred Share purchase right (a "Right") for each Common Share.
Each  Right  entitles  the  holder  to buy  1/100th  of a  Junior  Participating
Preferred Share (or, in certain circumstances, to receive cash, property, Common
Shares or other  securities  of the  Company) at an  exercise  price of $100 per
1/100th of a Junior Participating  Preferred Share. Certain powers,  preferences
and rights and  certain  qualifications,  limitations  and  restrictions  of the
Junior Participating Preferred Shares are summarized above under "Description of
Preferred Shares--Junior Participating Shares."

     Initially,  the Rights  are  attached  to Common  Shares.  The Rights  will
separate  from such  Common  Shares  and a  "Distribution  Date" will occur upon
earlier  of (i) 10  business  days  (or  such  later  date as the  Trustees  may
determine before a Distribution Date occurs) following a public  announcement by
the Company that a person,  together with all  affiliates and associates of such
person  (each as  defined  in Rule  12b-2 of the  Exchange  Act),  with  certain
exceptions (an "Acquiring Person"),  has acquired,  or has obtained the right to
acquire,  beneficial  ownership of 10% or more of the outstanding  Common Shares
(the  date of such  announcement  being a "Share  Acquisition  Date") or (ii) 10
business  days  (or such  later  date as the  Trustees  may  determine  before a
Distribution  Date  occurs)  following  the  commencement  of a tender  offer or
exchange offer that would result in a person becoming an Acquiring Person.

     Until the  Distribution  Date,  (i) the  Rights  will be  evidenced  by the
certificates  for Common Shares and will be transferred  with and only with such
Common  Share  certificates,  (ii)  Common  Share  certificates  will  contain a
notation  incorporating  the rights agreement  pursuant to which the Rights were
issued  (the  "Rights  Agreement")  by  reference  and (iii) the  surrender  for
transfer of any certificates for Common Shares  outstanding will also constitute
the transfer of the Rights associated with the Common Shares represented by such
certificates.

     The Rights are not exercisable  until the Distribution Date and will expire
at the close of business on April 30, 2007, unless earlier redeemed or exchanged
by the  Company  as  described  below.  Until a Right is  exercised,  the holder
thereof,  as such,  has no rights as a  shareholder  of the Company,  including,
without limitation, the right to vote or to receive dividends.

     In the event (a  "Flip-In  Event") a Person  becomes  an  Acquiring  Person
(except pursuant to a tender or exchange offer for all outstanding Common Shares
at a price and on terms which a majority of the Company's  Outside  Trustees (as
defined in the Rights  Agreement)  determines to be fair to and otherwise in the
best  interests  of the Company and its  shareholders  (a "fair  offer")),  each
holder of a Right will  thereafter  have the right to receive,  upon exercise of
such Right, Common Shares (or, in certain circumstances, cash, property or other
securities  of the  Company)  having a Current  Market  Price (as defined in the
Rights  Agreement)  equal  to  two  times  the  exercise  price  of  the  Right.
Notwithstanding  the  foregoing,  following the occurrence of any Flip-In Event,
all Rights that are, or (under  certain  circumstances  specified  in the Rights
Agreement)  were,  beneficially  owned by any  Acquiring  Person  (or by certain
related  parties)  will be null and void in the  circumstances  set forth in the
Rights  Agreement.  However,  Rights  will  not  be  exercisable  following  the
occurrence  of any  Flip-In  Event  until  such time as the Rights are no longer
redeemable by the Company as set forth below.

                                       26
<PAGE>

     In the event (a "Flip-Over  Event") that, at any time on or after the Share
Acquisition  Date, (i) the Company shall take part in a merger or other business
combination  transaction  (other than certain  mergers that follow a fair offer)
and the Company shall not be the surviving entity or (ii) the Company shall take
part in a merger or other business  combination  transaction in which the Common
Shares are changed or exchanged  (other than certain  mergers that follow a fair
offer) or (iii) 50% or more of the Company's  assets or earning power is sold or
transferred,  each holder of a Right (except Rights which  previously  have been
voided,  as set forth above) shall  thereafter  have the right to receive,  upon
exercise,  a number of shares of common stock of the acquiring  company having a
Current Market Price equal to two times the exercise price of the Right. Flip-In
Events and Flip-Over Events are collectively referred to as "Triggering Events."

     The purchase price payable and the number of Junior Participating Preferred
Shares (or the  amount of cash,  property  or other  securities)  issuable  upon
exercise  of the Rights are subject to  adjustment  from time to time to prevent
dilution (i) in the event of a share dividend on, or a subdivision,  combination
or  reclassification  of, the Junior  Participating  Preferred  Shares,  (ii) if
holders of the Junior Participating  Preferred Shares are granted certain rights
or  warrants  to  subscribe  for  Junior   Participating   Preferred  Shares  or
convertible  securities  at less than the  Current  Market  Price of the  Junior
Participating  Preferred Shares or (iii) upon the distribution to holders of the
Junior  Participating  Preferred  Shares of evidences of  indebtedness or assets
(excluding  regular  quarterly  cash  dividends)  or of  subscription  rights or
warrants  (other than those  referred to above).  With  certain  exceptions,  no
adjustment in the purchase price will be required until  cumulative  adjustments
amount to at least 1% of the  purchase  price.  The  Company is not  required to
issue fractional  Shares upon the exercise of any Right, and in lieu thereof,  a
cash payment will be made.

     At any time until 10 business days  following the Share  Acquisition  Date,
the Company may redeem the Rights in whole,  but not in part, at a price of $.01
per Right,  payable,  at the option of the Company,  in cash,  Common  Shares or
other  consideration  as  the  Trustees  may  determine.  Immediately  upon  the
effectiveness of the action of the Trustees  ordering  redemption of the Rights,
the Rights will terminate and the only right of the holders of Rights will be to
receive the $.01 per Right redemption price.

     The terms of the  Rights,  other than key  financial  terms and the date on
which  the  Rights  expire,  may  be  amended  by  the  Trustees  prior  to  the
Distribution  Date.  Thereafter,  the provisions of the Rights  Agreement may be
amended  by the  Trustees  only  in  order  to cure  any  ambiguity,  defect  or
inconsistency,  to make changes which do not  adversely  affect the interests of
holders of Rights  (excluding the interests of any Acquiring  Person and certain
other  related  parties)  or to shorten or lengthen  any time  period  under the
Rights  Agreement;  provided,  however,  that no  amendment to lengthen the time
period  governing  redemption is permitted to be made at such time as the Rights
are not redeemable.

Antitakeover Effect of Certain Provisions

     As discussed above and in documents  incorporated herein by reference,  the
Company's  Declaration and Bylaws contain  several  provisions that will make it
difficult  to acquire  control of the Company by means of a tender  offer,  open
market purchases, a proxy fight or otherwise, if the acquisition is not approved
by the Board of Trustees,  or to change the composition of the Board of Trustees
in a relatively  short period of time. The provisions are designed to reduce the
vulnerability  of the Company to an  unsolicited  proposal  for a takeover or an
unsolicited  proposal  for  the  restructuring  or sale  of the  Company  and to
encourage  persons  seeking to acquire  control of the Company to consult  first
with the Board of  Trustees  to  negotiate  the terms of any  proposed  business
combination  or  offer.  These  provisions  may have  the  effect  of  delaying,
deferring  or  preventing  a third party from making a tender offer or otherwise
attempting to obtain  control of the Company,  even though such an attempt might
be beneficial to the Company and its shareholders.

                                       27
<PAGE>

                              PLAN OF DISTRIBUTION

     The Company may sell the Offered Securities to one or more underwriters for
public offering and sale by them or may sell the Offered Securities to investors
directly or through agents.  Any such underwriter or agent involved in the offer
and sale of the Offered  Securities  will be named in the applicable  Prospectus
Supplement.

     The distribution of Offered Securities may be effected from time to time in
one or more  transactions at a fixed price or prices,  which may be changed,  at
market prices  prevailing at the time of sale, at prices  related to such market
prices  or at  negotiated  prices.  In  connection  with  the  sale  of  Offered
Securities,  underwriters  or agents may  receive or be deemed to have  received
compensation  from the Company or from  purchasers  in the form of  underwriting
discounts, concessions or commissions.  Underwriters may sell Offered Securities
to or through dealers,  and such dealers may receive compensation in the form of
discounts, concessions or commissions from the underwriters or from purchasers.

     Any underwriting compensation paid by the Company to underwriters or agents
in  connection  with the  offering  of Offered  Securities,  and any  discounts,
concessions or commissions  allowed by  underwriters to  participating  dealers,
will be set forth in the applicable Prospectus Supplement. Underwriters, dealers
and agents  participating in the  distribution of the Offered  Securities may be
deemed  to be  underwriters,  and any  discounts,  concessions  and  commissions
received  by them and any  profit  realized  by them on  resale  of the  Offered
Securities may be deemed to be underwriting discounts and commissions, under the
Securities  Act.  Underwriters,  dealers  and  agents  may  be  entitled,  under
agreements  entered  into  with the  Company,  to  indemnification  against  and
contribution toward certain civil liabilities,  including  liabilities under the
Securities Act.

     If so indicated in the applicable Prospectus  Supplement,  the Company will
authorize  underwriters  or other  persons  acting  as the  Company's  agents to
solicit offers by certain  institutions to purchase Offered  Securities from the
Company at the public  offering  price set forth in such  Prospectus  Supplement
pursuant to  contracts  providing  for payment and  delivery on a future date or
dates.  Institutions  with whom such  contracts,  when  authorized,  may be made
include  commercial  and savings  banks,  insurance  companies,  pension  funds,
investment  companies,   educational  and  charitable  institutions,  and  other
institutions,  but will in all cases be subject to the  approval of the Company.
Any such  contracts  will be subject to the  condition  that the  purchase by an
institution of the Offered  Securities covered by its contracts shall not at the
time of delivery be prohibited  under the law of any  jurisdiction in the United
States to which such  institution  is subject  and,  if a portion of the Offered
Securities is being sold to  underwriters,  may be subject to the condition that
the Company shall have sold to such underwriters the Offered Securities not sold
for delayed delivery.  The underwriters and such other persons will not have any
responsibility in respect of the validity or performance of such contracts.

     Unless  otherwise  specified  in the related  Prospectus  Supplement,  each
series of Offered  Securities  will be a new issue with no  established  trading
market,  other  than  Common  Shares  which  are  listed  on the New York  Stock
Exchange.  Any Common  Shares sold pursuant to a Prospectus  Supplement  will be
listed on such  Exchange.  The  Company  may  elect to list any other  series of
Offered  Securities  on  an  exchange,  but  is  not  obligated  to do  so.  Any
underwriters  to whom  Offered  Securities  are sold by the  Company  for public
offering  and  sale  may  make a market  in such  Offered  Securities,  but such
underwriters  will not be  obligated  to do so and may  discontinue  any  market
making at any time without notice. No assurance can be given as to the liquidity
of or the trading markets for any Offered Securities.

     Certain of the  underwriters  and their  affiliates  may be  customers  of,
engage  in  transactions  with and  perform  services  for the  Company  and its
subsidiaries in the ordinary course of business.

     The specific terms and manner of sale of the Offered Securities will be set
forth or summarized in the applicable Prospectus Supplement.


                                       28
<PAGE>

                                  LEGAL MATTERS

     Certain legal matters with respect to the Offered Securities offered by the
Company will be passed upon for the Company by Sullivan & Worcester LLP, Boston,
Massachusetts.  Sullivan & Worcester  LLP, will rely,  as to certain  matters of
Maryland  law,  upon one or more  opinions of Ballard Spahr Andrews & Ingersoll,
Baltimore,  Maryland. Barry M. Portnoy, a former partner of the firm of Sullivan
& Worcester LLP, is a Managing  Trustee of the Company and Health and Retirement
Properties Trust ("HRPT"), a director of certain subsidiaries of the Company and
a director  and 50%  shareholder  of HRPT  Advisors,  Inc.,  the  advisor to the
Company  ("Advisors").  Sullivan & Worcester LLP represents  Advisors,  HRPT and
certain affiliates thereof on various matters.

                                     EXPERTS

     The  consolidated  financial  statements of the Company for the years ended
December 31, 1996 and 1995,  HMH HPT  Courtyard,  Inc. for the fiscal year ended
January  3, 1997 and for the  period  from March 24,  1995  (inception)  through
December 29, 1995 and of HMH HPT  Residence  Inn, Inc. for the period from March
22, 1996 (inception) through January 3, 1997, appearing in the Annual Report and
incorporated by reference in this  Prospectus and elsewhere in the  Registration
Statement,  have  been  audited  by  Arthur  Andersen  LLP,  independent  public
accountants,  as indicated in their reports with respect  thereto.  Such reports
are  incorporated  herein and in the  Registration  Statement  by  reference  in
reliance upon the authority of said firm as experts in giving said reports.

     The combined  financial  statements  as of January 3, 1997 and for the year
then ended,  of the Limited  Service I Hotels and Limited  Service II Hotels (as
defined in the  Company's  Current  Report on Form 8-K dated  November 21, 1997)
incorporated by reference in this  Prospectus and elsewhere in the  Registration
Statement,  have  been  audited  by  Arthur  Andersen  LLP,  independent  public
accountants,  as indicated in their reports with respect  thereto.  Such reports
are  incorporated  herein and in the  Registration  Statement  by  reference  in
reliance upon the authority of said firm as experts in giving said reports.

     The  financial  statements of Renthotel  Utah,  L.C.  incorporated  in this
Prospectus and the Registration  Statement by reference to the Company's Current
Report on Form 8-K dated November 21, 1997,  have been audited by Reznick Fedder
&  Silverman,  independent  auditors,  as  stated  in  their  report,  which  is
incorporated herein by reference,  and has been so incorporated in reliance upon
the report of such firm given upon their  authority as experts in accounting and
auditing.
                                -----------------

THE  DECLARATION OF TRUST OF THE COMPANY,  AS AMENDED AND RESTATED ON AUGUST 21,
1995, A COPY OF WHICH, TOGETHER WITH ALL AMENDMENTS THERETO (THE "DECLARATION"),
IS DULY FILED IN THE OFFICE OF THE DEPARTMENT OF ASSESSMENTS AND TAXATION OF THE
STATE OF MARYLAND,  PROVIDES THAT THE NAME "HOSPITALITY PROPERTIES TRUST" REFERS
TO THE  TRUSTEES  UNDER  THE  DECLARATION  COLLECTIVELY  AS  TRUSTEES,  BUT  NOT
INDIVIDUALLY OR PERSONALLY, AND THAT NO TRUSTEE, OFFICER, SHAREHOLDER,  EMPLOYEE
OR AGENT OF THE  COMPANY  SHALL BE HELD TO ANY  PERSONAL  LIABILITY,  JOINTLY OR
SEVERALLY,  FOR ANY OBLIGATION OF, OR CLAIM  AGAINST,  THE COMPANY.  ALL PERSONS
DEALING  WITH THE  COMPANY,  IN ANY WAY,  SHALL  LOOK ONLY TO THE  ASSETS OF THE
COMPANY FOR THE PAYMENT OF ANY SUM OR THE PERFORMANCE OF ANY OBLIGATION.

                                       29
<PAGE>

                                     PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

Item 14. Other Expenses of Issuance and Distribution

     Set forth below is an estimate (except in the case of the registration fee)
of the  amount  of fees and  expenses  to be  incurred  in  connection  with the
issuance and distribution of the Offered  Securities  registered  hereby,  other
than underwriting discounts and commissions.


Registration Fee Under Securities Act                      $  577,097
Blue Sky Fees and Expenses                                     40,000
Legal Fees and Expenses                                     1,500,000
Accounting Fees and Expenses                                  750,000
Printing and Engraving                                        200,000
Rating Agencies Fees                                          300,000
Trustee Fees (including counsel fees)                          80,000
Miscellaneous Fees and Expenses                               552,903
                                                           ----------
   Total:                                                  $4,000,000






Item 15. Indemnification of Directors and Officers

     Section 6.4 of the Company's  Declaration of Trust, filed as Exhibit 3.1 to
the Company's  Annual Report on Form 10-K for the year ended  December 31, 1995,
which provides for  indemnification of Trustees and officers of the Company,  is
hereby incorporated by reference.

     Reference is made to the Underwriting  Agreements (Exhibits 1.1 through 1.5
hereto)  which  may  contain  certain  provisions  for  indemnification  by  the
Underwriters of the Company,  Trustees,  officers and controlling  persons under
certain circumstances.

Item 16. Exhibits

     1.1   - Form of Underwriting Agreement (for Debt Securities)*
     1.2   - Form of Underwriting Agreement (for Preferred Shares)*
     1.3   - Form of Underwriting Agreement (for Depositary Shares)*
     1.4   - Form of Underwriting Agreement (for Common Shares)*
     1.5   - Form of Underwriting Agreement (for Warrants)*
     3.1   - Declaration of Trust**
     3.2   - Articles Supplementary dated May 20, 1997****
     3.3   - By-Laws**
     4.1   - Form of Senior Indenture***
     4.2   - Form of Subordinated Indenture***
     4.3   - Form of Senior Debt Security*
     4.4   - Form of Subordinated Debt Security*
     4.5   - Form of Articles Supplementary for the Preferred Shares*
     4.6   - Form of Deposit Agreement, including form of Depositary Receipt for
             Depositary Shares*
     4.7   - Form of Preferred Shares Certificate*

                                      II-1

<PAGE>



     4.8   - Form of Common Shares Certificate**
     4.7   - Form of Warrant Debt Agreement, including form of Debt Warrant *
     4.8   - Form of Preferred Share Warrant Agreement, including form of 
             Preferred Share Warrant*
     4.9   - Form of Common Share Warrant Agreement, including form of Common 
             Share Warrant*
     5.1   - Opinion of Sullivan & Worcester LLP***
     5.2   - Opinion of Ballard Spahr Andrews & Ingersoll***
     8     - Opinion of Sullivan & Worcester LLP re: tax matters *
     12    - Statement Regarding Computation of Ratios of Earnings to Fixed 
             Charges***
     23.1 -  Consents of Arthur Andersen LLP*** 
     23.2 - Consent of Reznick Fedder & Silverman***
     23.3  - Consent of Sullivan & Worcester LLP (included in Exhibit 5.1)
     23.4  - Consent of Ballard Spahr Andrews & Ingersoll (included in Exhibit 
             5.2)
     24    - Powers of Attorney (included at Page II-4)
     25.1  - Statement of Eligibility of Trustee on Form T-1*
- -------------
*    To be filed by amendment or  incorporated  by reference in connection  with
     the offering of Offered Securities, as appropriate.
**   Incorporated by reference to the Company's Registration Statement on Form 
     S-11, No. 33-92330.
***  Filed herewith.
**** Incorporated by reference to the Company's Current Report on Form 8-K,
     dated May 20, 1997.


Item 17. Undertakings

(a)  The undersigned Registrant hereby undertakes:

     (1) To file,  during any period in which  offers or sales are being made, a
     post-effective amendment to this registration statement:

     (i)  To  include  any  prospectus  required  by  section  10(a)(3)  of  the
     Securities Act of 1933;

     (ii) To reflect in the  prospectus  any facts or events  arising  after the
     effective  date  of  the   registration   statement  (or  the  most  recent
     post-effective amendment thereof) which,  individually or in the aggregate,
     represent  a  fundamental  change  in the  information  set  forth  in this
     registration  statement.  Notwithstanding  the  foregoing,  any increase or
     decrease  in volume of  securities  offered (if the total  dollar  value of
     securities  offered  would not exceed  that which was  registered)  and any
     deviation from the low or high end of the estimated  maximum offering range
     may be  reflected  in the form of  prospectus  filed  with  the  Commission
     pursuant  to Rule  424(b)  (Section  230.424(b)  of 17  C.F.R.)  if, in the
     aggregate,  the  changes in volume and price  represent  no more than a 20%
     change  in  the  maximum   aggregate   offering  price  set  forth  in  the
     "Calculation  of  Registration  Fee"  table in the  effective  registration
     statement; and

     (iii) To  include  any  material  information  with  respect to the plan of
     distribution not previously disclosed in this registration statement or any
     material change to such information in this registration statement;

     provided,  however,  that  subparagraphs  (i) and (ii) do not  apply if the
     information required to be included in a post-effective  amendment by those
     paragraphs  is contained in the periodic  reports  filed by the  Registrant
     pursuant to Section 13 or Section 15(d) of the  Securities and Exchange Act
     of 1934 that are incorporated by reference in this registration statement.

     (2) That for the purpose of determining  any liability under the Securities
     Act of 1933, each such post-effective amendment shall be deemed to be a new
     registration  statement  relating to the Securities offered herein, and the
     offering of such  Securities at that time shall be deemed to be the initial
     bona fide offering thereof.

                                      II-2

<PAGE>



     (3) To remove from registration by means of a post-effective  amendment any
     of the Securities  being  registered which remain unsold at the termination
     of the offering.

(b)  The undersigned Registrant hereby further undertakes that, for the purposes
     of determining  any liability under the Securities Act of 1933, each filing
     of the  Registrant's  annual  report  pursuant to Section  13(a) or Section
     15(d) of the Securities  Exchange of 1934 that is incorporated by reference
     in this  registration  statement  shall be deemed to be a new  registration
     statement  relating to the Securities  offered herein,  and the offering of
     such  Securities  at that time shall be deemed to be the initial  bona fide
     offering thereof.

(c)  Insofar as indemnification for liabilities arising under the Securities Act
     of 1933 may be permitted to trustees,  officers and controlling  persons of
     the Registrant  pursuant to the provisions  described under Item 15 of this
     registration statement, or otherwise (other than insurance), the Registrant
     has  been  advised  that in the  opinion  of the  Securities  and  Exchange
     Commission  such  indemnification  is against public policy as expressed in
     such Act and is,  therefore,  unenforceable.  In the event that a claim for
     indemnification  against  such  liabilities  (other than the payment by the
     Registrant  of  expenses  incurred  or  paid  by  a  trustee,   officer  or
     controlling  person of the  Registrant  in the  successful  defense  of any
     action,  suit or  proceeding)  is  asserted  by such  trustee,  officer  or
     controlling person in connection with the Securities being registered,  the
     Registrant  will,  unless in the opinion of its counsel the matter has been
     settled  by  controlling  precedent,  submit  to  a  court  of  appropriate
     jurisdiction  the question  whether such  indemnification  by it is against
     public  policy as  expressed  in such Act and will be governed by the final
     adjudication  of  such  issue.  

(d)  The undersigned registrant hereby undertakes that:

     (1) For purposes of determining  any liability  under the Securities Act of
     1933, the information  omitted from the form of prospectus filed as part of
     this  Registration  Statement in reliance upon Rule 430A and contained in a
     form of prospectus  filed by the Company  pursuant to Rule 424(b)(1) or (4)
     or  497(h)  under  the  Securities  Act  shall be deemed to be part of this
     Registration Statement as of the time it was declared effective; and

     (2) For purposes of determining  any liability  under the Securities Act of
     1933,  each  post-effective  amendment  that  contains a form of prospectus
     shall  be  deemed  to be a  new  registration  statement  relating  to  the
     securities  offered  therein,  and the offering of such  securities at that
     time shall be deemed to be the initial bona fide offering thereof.

(e)  The undersigned registrant hereby undertakes to file an application for the
     purpose of determining  the  eligibility  of each Indenture  Trustee to act
     under  subsection  (a)  of  Section  310  of  the  Trust  Indenture  Act in
     accordance  with the rules and  regulations  prescribed  by the  Commission
     under Section 305(b)(2) of the Trust Indenture Act.


                                      II-3

<PAGE>


                                   SIGNATURES

     Pursuant to the  requirements of the Securities Act of 1933, the registrant
certifies  that it has  reasonable  grounds to believe  that it meets all of the
requirements of Form S-3 and has duly caused this  registration  statement to be
signed on its behalf by the undersigned,  thereunto duly authorized, in the City
of Newton, Commonwealth of Massachusetts, on December 31, 1997.



                                     HOSPITALITY PROPERTIES TRUST

                                     By: /s/ John G. Murray
                                          John G. Murray
                                          President and Chief Operating Officer

     Pursuant to the  requirements  of the  Securities  Act of 1933, as amended,
this Registration  Statement on Form S-3 relating to Debt Securities,  Preferred
Shares,  Depositary Shares,  Common Shares and Warrants has been signed below on
December 31, 1997 by the following  persons in the  capacities  and on the dates
indicated;  and each of the  undersigned  officers and  trustees of  Hospitality
Properties Trust, hereby severally constitute and appoint John G. Murray, Thomas
M. O'Brien,  Gerard M. Martin and Barry M. Portnoy and each of them, to sign for
him,  and in his  name  in  the  capacity  indicated  below,  this  Registration
Statement for the purpose of registering  such  securities  under the Securities
Act of 1933,  as  amended,  and any and all  amendments  thereto,  and any other
Registration  Statement filed by Hospitality  Properties  Trust pursuant to Rule
462(b) which registers additional amounts of such securities for the offering or
offerings  contemplated by this Registration  Statement (a "462(b)  Registration
Statement") hereby ratifying and confirming our signatures as they may be signed
by our  attorneys  to  this  Registration  Statement,  any  462(b)  Registration
Statement and any and all amendments to either thereof.
<TABLE>
<CAPTION>
            Signature                                 Title                                        Date
            ---------                                 -----                                        ----
<S>                                     <C>                                                 <C>

/s/ John G. Murray                       President and Chief Operating                        December 31, 1997
John G. Murray                           Officer (principal executive officer)

/s/ Thomas O'Brien                       Treasurer and Chief Financial                        December 31, 1997
Thomas O'Brien                           Officer

/s/ John L. Harrington                   Trustee                                              December 31, 1997
John L. Harrington

/s/ Arthur G. Koumantzelis               Trustee                                              December 31, 1997
Arthur G. Koumantzelis

/s/ Gerard M. Martin                     Managing Trustee                                     December 31, 1997
Gerard M. Martin

/s/ Barry M. Portnoy                     Managing Trustee                                     December 31, 1997
Barry M. Portnoy

/s/ William J. Sheehan                   Trustee                                              December 31, 1997
William J. Sheehan
</TABLE>


                                      II-4



                                                                     EXHIBIT 4.1

                          HOSPITALITY PROPERTIES TRUST

                                       TO

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

                                     Trustee




                                    Indenture

                          Dated as of __________, 199_



                             Senior Debt Securities




<PAGE>

<TABLE>
<CAPTION>

                                             TABLE OF CONTENTS1

                                                                                                      PAGE
<S>             <C>                                                                                    <C>

PARTIES..................................................................................................1

RECITALS.................................................................................................1


                                                ARTICLE ONE

                          DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION

SECTION 101.  Definitions................................................................................1
                  "Act"    ..............................................................................1
                  "Additional Amounts"...................................................................2
                  "Affiliate"............................................................................2
                  "Authenticating Agent".................................................................2
                  "Authorized Newspaper".................................................................2
                  "Bankruptcy Law".......................................................................2
                  "Bearer Security"......................................................................2
                  "Board"  ..............................................................................2
                  "Board Resolution".....................................................................2
                  "Business Day".........................................................................2
                  "CEDEL"  ..............................................................................2
                  "Commission"...........................................................................2
                  "Common Depositary"....................................................................2
                  "Company"..............................................................................2
                  "Company Request" and "Company Order"..................................................2
                  "Conversion Event".....................................................................3
                  "Corporate Trust Office"...............................................................3
                  "corporation"..........................................................................3
                  "coupon" ..............................................................................3
                  "Custodian"............................................................................3
                  "Declaration"..........................................................................3
                  "Defaulted Interest"...................................................................3
                  "Dollar" or "$"........................................................................3
                  "DTC"    ..............................................................................3
                  "ECU"    ..............................................................................3
                  "Euroclear"............................................................................3
                  "European Communities".................................................................3
                  "European Monetary System".............................................................3
                  "Event of Default".....................................................................3
                  "Exchange Date"........................................................................3
                  "Foreign Currency".....................................................................3
                  "Funds from Operations"................................................................3
                  "GAAP"   ..............................................................................3
                  "Government Obligations"...............................................................4
                  "Holder" ..............................................................................4
                  "Indenture"............................................................................4
                  "Indexed Security".....................................................................4
- --------
1        This Table of Contents shall not, for any purpose, be deemed to be part of this Indenture.

                                                        

<PAGE>



                  "interest".............................................................................4
                  "Interest Payment Date"................................................................4
                  "Maturity".............................................................................4
                  "Officers' Certificate"................................................................4
                  "Opinion of Counsel"...................................................................4
                  "Original Issue Discount Security".....................................................4
                  "Outstanding"..........................................................................5
                  "Paying Agent".........................................................................5
                  "Person" ..............................................................................5
                  "Place of Payment".....................................................................6
                  "Predecessor Security".................................................................6
                  "Redemption Date"......................................................................6
                  "Redemption Price".....................................................................6
                  "Registered Security"..................................................................6
                  "Regular Record Date"..................................................................6
                  "Repayment Date".......................................................................6
                  "Responsible Officer"..................................................................6
                  "Security".............................................................................6
                  "Security Register" and "Security Registrar"...........................................6
                  "Significant Subsidiary"...............................................................6
                  "Special Record Date"..................................................................6
                  "Stated Maturity"......................................................................7
                  "Subsidiary"...........................................................................7
                  "Trust Indenture Act" or "TIA".........................................................7
                  "Trustee"..............................................................................7
                  "United States"........................................................................7
                  "United States person".................................................................7
                  "Yield to Maturity"....................................................................7
SECTION 102.  Compliance Certificates and Opinions.......................................................7
SECTION 103.  Form of Documents Delivered to Trustee.....................................................8
SECTION 104.  Acts of Holders............................................................................8
SECTION 105.  Notices, etc., to Trustee and Company......................................................9
SECTION 106.  Notice to Holders; Waiver..................................................................9
SECTION 107.  Effect of Headings and Table of Contents..................................................10
SECTION 108.  Successors and Assigns....................................................................10
SECTION 109.  Separability Clause.......................................................................10
SECTION 110.  Benefits of Indenture.....................................................................10
SECTION 111.  Governing Law.............................................................................10
SECTION 112.  Legal Holidays............................................................................10
SECTION 113.  No Personal Liability.....................................................................11

                                                ARTICLE TWO

                                              SECURITIES FORMS

SECTION 201.  Forms of Securities.......................................................................11
SECTION 202.  Form of Trustee's Certificate of Authentication...........................................11
SECTION 203.  Securities Issuable in Global Form........................................................12

                                               ARTICLE THREE

                                               THE SECURITIES


                                                    -ii-

<PAGE>



 SECTION 301.  Amount Unlimited; Issuable in Series......................................................12
 SECTION 302.  Denominations.............................................................................15
 SECTION 303.  Execution, Authentication, Delivery and Dating............................................15
 SECTION 304.  Temporary Securities......................................................................17
 SECTION 305.  Registration, Registration of Transfer and Exchange.......................................18
 SECTION 306.  Mutilated, Destroyed, Lost and Stolen Securities..........................................21
 SECTION 307.  Payment of Interest; Interest Rights Preserved............................................21
 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 Funds................................................................25

                                                ARTICLE FIVE

                                                  REMEDIES

 SECTION 501.  Events of Default.........................................................................25
 SECTION 502.  Acceleration of Maturity; Rescission and Annulment........................................26
 SECTION 503.  Collection of Indebtedness and Suits for Enforcement by Trustee...........................27
 SECTION 504.  Trustee May File Proofs of Claim..........................................................28
 SECTION 505.  Trustee May Enforce Claims Without Possession of Securities or Coupons....................28
 SECTION 506.  Application of Money Collected............................................................29
 SECTION 507.  Limitation on Suits.......................................................................29
 SECTION 508.  Unconditional Right of Holders to Receive Principal, Premium, if any, Interest
                     and Additional Amounts..............................................................29
 SECTION 509.  Restoration of Rights and Remedies........................................................30
 SECTION 510.  Rights and Remedies Cumulative............................................................30
 SECTION 511.  Delay or Omission Not Waiver..............................................................30
 SECTION 512.  Control by Holders of Securities..........................................................30
 SECTION 513.  Waiver of Past Defaults...................................................................30
 SECTION 514.  Waiver of Usury, Stay or Extension Laws...................................................30
 SECTION 515.  Undertaking for Costs.....................................................................31

                                                ARTICLE SIX

                                                THE TRUSTEE

 SECTION 601.  Notice of Defaults........................................................................31
 SECTION 602.  Certain Rights of Trustee.................................................................31
 SECTION 603.  Not Responsible for Recitals or Issuance of Securities....................................32
 SECTION 604.  May Hold Securities.......................................................................32
 SECTION 605.  Money Held in Trust.......................................................................32
 SECTION 606.  Compensation and Reimbursement............................................................32
 SECTION 607.  Corporate Trustee Required; Eligibility; Conflicting Interests............................33
 SECTION 608.  Resignation and Removal; Appointment of Successor.........................................33
 SECTION 609.  Acceptance of Appointment by Successor....................................................34
 SECTION 610.  Merger, Conversion, Consolidation or Succession to Business...............................35

                                                   -iii-

<PAGE>



SECTION 611.  Appointment of Authentication Agent.......................................................35

                                               ARTICLE SEVEN

                             HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY

SECTION 701.  Disclosure of Names and Addresses of Holders..............................................36
SECTION 702.  Reports by Trustee........................................................................37
SECTION 703.  Reports by Company........................................................................37
SECTION 704.  Company to Furnish to Trustee Names and Addresses of Holders..............................37

                                               ARTICLE EIGHT

                              CONSOLIDATION, MERGER, SALE, LEASE OR CONVEYANCE

SECTION 801.  Consolidations and Mergers of Company and Sales, Leases and Conveyances Permitted
                  Subject
                   to Certain Conditions................................................................37
SECTION 802.  Rights and Duties of Successor Corporation................................................38
SECTION 803.  Officers' Certificate and Opinion of Counsel..............................................38

                                                ARTICLE NINE

                                          SUPPLEMENTAL INDENTURES

SECTION 901.  Supplemental Indentures Without Consent of Holders........................................38
SECTION 902.  Supplemental Indentures with Consent of Holders...........................................39
SECTION 903.  Execution of Supplemental Indentures......................................................40
SECTION 904.  Effect of Supplemental Indentures.........................................................40
SECTION 905.  Conformity with Trust Indenture Act.......................................................40
SECTION 906.  Reference in Securities to Supplemental Indentures........................................40

                                                ARTICLE TEN

                                                 COVENANTS

SECTION 1001.  Payment of Principal, Premium, if any, Interest and Additional Amounts...................41
SECTION 1002.  Maintenance of Office or Agency..........................................................41
SECTION 1003.  Money for Securities Payments to Be Held in Trust........................................42
SECTION 1004.  Existence................................................................................43
SECTION 1005.  Provision of Financial Information.......................................................43
SECTION 1006.  Statement as to Compliance...............................................................43
SECTION 1007.  Additional Amounts.......................................................................44
SECTION 1008.  Waiver of Certain Covenants..............................................................44

                                               ARTICLE ELEVEN

                                          REDEMPTION OF SECURITIES

SECTION 1101.  Applicability of Article.................................................................44
SECTION 1102.  Election to Redeem; Notice to Trustee....................................................44
SECTION 1103.  Selection by Trustee of Securities to Be Redeemed........................................45
SECTION 1104.  Notice of Redemption.....................................................................45

                                                    -iv-

<PAGE>



SECTION 1105.  Deposit of Redemption Price..............................................................46
SECTION 1106.  Securities Payable on Redemption Date....................................................46
SECTION 1107.  Securities Redeemed in Part..............................................................47

                                               ARTICLE TWELVE

                                               SINKING FUNDS

SECTION 1201.  Applicability of Article.................................................................47
SECTION 1202.  Satisfaction of Sinking Fund Payments with Securities....................................47
SECTION 1203.  Redemption of Securities for Sinking Fund................................................47

                                              ARTICLE THIRTEEN

                                     REPAYMENT AT THE OPTION OF HOLDERS

SECTION  1301.  Applicability of Article................................................................48
SECTION 1302.  Repayment of Securities..................................................................48
SECTION 1303.  Exercise of Option.......................................................................48
SECTION 1304.  When Securities Presented for Repayment Become Due and Payable...........................49
SECTION 1305.  Securities Repaid in Part................................................................49

                                              ARTICLE FOURTEEN

                                     DEFEASANCE AND COVENANT DEFEASANCE

SECTION 1401.  Applicability of Article; Company's Option to Effect Defeasance or Covenant
                  Defeasance............................................................................49
SECTION 1402.  Defeasance and Discharge.................................................................50
SECTION 1403.  Covenant Defeasance......................................................................50
SECTION 1404.  Conditions to Defeasance or Covenant Defeasance..........................................50
SECTION 1405.  Deposited Money and Government Obligations to Be Held in Trust; Other
                  Miscellaneous Provisions..............................................................52

                                              ARTICLE FIFTEEN

                                     MEETINGS OF HOLDERS OF SECURITIES

SECTION 1501.  Purposes for Which Meetings May Be Called................................................52
SECTION 1502.  Call, Notice and Place of Meetings.......................................................53
SECTION 1503.  Persons Entitled to Vote at Meetings.....................................................53
SECTION 1504.  Quorum; Action...........................................................................53
SECTION 1505. Determination of Voting Rights; Conduct and Adjournment of Meetings.......................54
SECTION 1506.  Counting Votes and Recording Action of Meetings..........................................54

TESTIMONIUM...............................................................................................
SIGNATURES AND SEALS......................................................................................
ACKNOWLEDGMENTS...........................................................................................
EXHIBIT A -- FORMS OF CERTIFICATION
</TABLE>


                                                    -v-

<PAGE>



                          HOSPITALITY PROPERTIES TRUST

         Reconciliation  and tie between Trust Indenture Act of 1939, as amended
(the "TIA"), and Indenture, dated as of __________, 199_.


               TIA Section                         Indenture Section
Sec. 310(a)(1)..........................                  607
        (a)(2)..........................                  607
        (b).............................               607, 608
Sec. 312(a).............................                  704
Sec. 312(c).............................                  701
Sec. 313(a).............................                  702
       (c)..............................                  702
Sec. 314(a).............................                 1006
       (a)(4)...........................                 1007
       (c)(1)...........................                  102
       (c)(2)...........................                  102
       (e)..............................                  102
Sec. 315(b).............................                  601
Sec. 316(a) (last sentence).............          101 ("Outstanding")
        (a)(1)(A).......................               502, 512
        (a)(1)(B).......................                  513
       (b)..............................                  508
Sec. 317(a)(1)..........................                  503
       (a)(2)...........................                  504
Sec. 318(a).............................                  111
       (c)..............................                  111

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

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

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

                                      -vi-

<PAGE>




         INDENTURE,   dated  as  of  ___________,   199_,  between   HOSPITALITY
PROPERTIES  TRUST, a Maryland real estate investment trust  (hereinafter  called
the  "Company"),  having  its  principal  office at 400 Centre  Street,  Newton,
Massachusetts  02158  and,  _____________________________,   a  ___________,  as
Trustee  hereunder  (hereinafter  called  the  "Trustee"),  having  its  initial
Corporate Trust Office at _____________________________________.

                             RECITALS OF THE COMPANY

                  The Company  deems it necessary to issue from time to time for
lawful   purposes  its  unsecured  debt  securities   (hereinafter   called  the
"Securities") evidencing its unsecured indebtedness, and has duly authorized the
execution  and delivery of this  Indenture to provide for the issuance from time
to time of the Securities, unlimited as to principal amount, to bear interest at
the rates or formulas, to mature at such times and to have such other provisions
as shall be fixed as hereinafter provided.

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

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

                  NOW, THEREFORE, THIS INDENTURE WITNESSETH:

                  For and in  consideration  of the premises and the purchase of
the Securities by the Holders thereof, it is mutually covenanted and agreed, for
the equal and  proportionate  benefit of all Holders of the  Securities  or of a
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 TIA,
either  directly or by reference  therein,  have the  meanings  assigned to them
therein, and the terms "cash transaction" and "self-liquidating  paper", as used
in TIA Section 311, shall have the meanings assigned to them in the rules of the
Commission adopted under the TIA;

                  (3) all accounting terms not otherwise defined herein have the
meanings assigned to them in accordance with GAAP; and

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

                  Certain terms,  used  principally  in Article  Three,  Article
Five, Article Six and Article Ten, are defined in those Articles.

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

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

                                                        

<PAGE>



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

                  "Authenticating   Agent"   means  any   authenticating   agent
appointed by the Trustee pursuant to Section 611.

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

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

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

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

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

                  "Business Day", when used with respect to any Place of Payment
or any  other  particular  location  referred  to in  this  Indenture  or in the
Securities,  means,  unless  otherwise  specified with respect to any Securities
pursuant  to Section  301,  any day,  other than a Saturday  or Sunday,  that is
neither a legal holiday nor a day on which banking institutions in that Place of
Payment or particular  location are authorized or required by law, regulation or
executive order to close.

                  "CEDEL" means Cedel, S.A., or its successor.

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

                  "Common Depositary" has the meaning specified in Section 304.

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

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

                  "Conversion Event" means the cessation of use of (i) a Foreign
Currency  both by the  government  of the country which issued such currency and
for the settlement of transactions by a central bank or other public institution
of or within the international  banking community,  (ii) the ECU both within the
European Monetary System and for the

                                        2

<PAGE>



settlement  of  transactions  by public  institutions  of or within the European
Communities  or (iii) any currency unit (or composite  currency)  other than the
ECU for the purposes for which it was established.

                  "Corporate  Trust  Office"  means the office of the Trustee at
which, at any particular time, its corporate trust business shall be principally
administered, which office at the date hereof is located at _____________.

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

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

                  "Custodian" has the meaning specified in Section 501.

                  "Declaration" has the meaning specified in Section 113.

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

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

                  "DTC" means The  Depository  Trust  Company,  or any successor
thereto.

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

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

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

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

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

                  "Exchange Date" has the meaning specified in Section 304.

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

                  "Funds from  Operations" for any period means the consolidated
net income of the Company and its  Subsidiaries  for such period  without giving
effect to  depreciation  and  amortization,  gains or losses from  extraordinary
items,  gains or losses on sales of real estate,  gains or losses on investments
in marketable  securities  and any  provision/benefit  for income taxes for such
period,  plus  funds from  operations  of  unconsolidated  joint  ventures,  all
determined on a consistent basis in accordance with GAAP.

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

                  "Government Obligations" means securities which are (i) direct
obligations of the United States of America or the  government  which issued the
Foreign Currency in which the Securities of a particular series are payable,

                                        3

<PAGE>



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

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

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

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

                  "interest",  when  used  with  respect  to an  Original  Issue
Discount  Security which by its terms bears interest only after Maturity,  shall
mean interest payable after Maturity,  and, when used with respect to a Security
which provides for the payment of Additional  Amounts  pursuant to Section 1007,
includes such Additional Amounts.

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

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

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

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

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


                                        4

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

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

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

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

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

                  (v) Securities converted into Common Shares,  Preferred Shares
or other  securities  of the  Company  pursuant  to or in  accordance  with this
Indenture if the terms of such Securities provide for convertibility pursuant to
Section 301;

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

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

                                        5
<PAGE>

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

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

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

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

                  "Registered  Security"  shall  mean any  Security  established
pursuant to Section 201 which is registered in the Security Register.

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

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

                  "Responsible Officer",  when used with respect to the Trustee,
means the chairman or vice-chairman  of the board of directors,  the chairman or
vice-chairman  of  the  executive  committee  of the  board  of  directors,  the
president,  any vice president  (whether or not designated by a number or a word
or words added before or after the title "vice president"),  the secretary,  any
assistant secretary,  the treasurer,  any assistant treasurer,  the cashier, any
assistant cashier, any trust officer, the controller or any other officer of the
Trustee  customarily  performing  functions similar to those performed by any of
the above  designated  officers  and also  means with  respect  to a  particular
corporate  trust  matter,  any other  officer  to whom such  matter is  referred
because of such officer's knowledge and familiarity with the particular subject.

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

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

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

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


                                        6

<PAGE>



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

                  "Subsidiary" means a corporation a majority of the outstanding
voting stock of which is owned, directly or indirectly, by the Company or by one
or more other Subsidiaries of the Company.  For the purposes of this definition,
"voting  stock" means stock having  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" or "TIA" means the Trust  Indenture Act
of 1939,  as amended and as in force at the date as of which this  Indenture was
executed, except as provided in Section 905.

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

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

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

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

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

                  Every certificate or opinion with respect to compliance with a
condition or covenant  provided for in this  Indenture  (including  certificates
delivered pursuant to Section 1006) shall include:

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

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

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


                                        7

<PAGE>
                           (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 as to some  matters and one or more other such  Persons as to
other  matters,  and any such  Person may  certify or give an opinion as to such
matters in one or several documents.

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

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

                  SECTION  104.  Acts  of  Holders.  (a)  Any  request,  demand,
authorization,  direction,  notice,  consent, waiver or other action provided by
this Indenture to be given or taken by Holders of the Outstanding  Securities of
all series or one or more  series,  as the case may be, may be  embodied  in and
evidenced by one or more  instruments of  substantially  similar tenor signed by
such Holders in person or by agents duly appointed in writing.  If Securities of
a series are issuable as Bearer Securities, any request, demand,  authorization,
direction, notice, consent, waiver or other action provided by this Indenture to
be given or taken by Holders of Securities of such series may, alternatively, be
embodied in and  evidenced by the record of Holders of Securities of such series
voting  in favor  thereof,  either in person or by  proxies  duly  appointed  in
writing,  at any meeting of Holders of Securities of such series duly called and
held in accordance with the provisions of Article  Fifteen,  or a combination of
such  instruments  and any such  record.  Except as herein  otherwise  expressly
provided, such action shall become effective when such instrument or instruments
or record or both are delivered to the Trustee and, where it is hereby expressly
required,  to the Company.  Such  instrument or instruments  and any such record
(and the action  embodied  therein and evidenced  thereby) are herein  sometimes
referred to as the "Act" of the Holders  signing such  instrument or instruments
or so voting at any such meeting.  Proof of execution of any such  instrument or
of a writing  appointing  any such  agent,  or of the holding by any Person of a
Security,  shall be sufficient  for any purpose of this Indenture and conclusive
in favor of the  Trustee  and the  Company  and any agent of the  Trustee or the
Company,  if made in the  manner  provided  in this  Section.  The record of any
meeting of  Holders of  Securities  shall be proved in the  manner  provided  in
Section 1506.

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

                  (c) The ownership of Registered  Securities shall be proved by
the Security Register.

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

                                        8
<PAGE>

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

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

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

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

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

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

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

                                        9
<PAGE>
                  If by reason of the suspension of or irregularities in regular
mail service or by reason of any other cause it shall be  impracticable  to give
such notice by mail, then such notification to Holders of Registered  Securities
as shall be made with the approval of the Trustee shall  constitute a sufficient
notification to such Holders for every purpose hereunder.

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

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

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

                  Where this Indenture  provides for notice in any manner,  such
notice may be waived in writing by the Person  entitled to receive  such notice,
either  before or after the event,  and such waiver shall be the  equivalent  of
such notice.  Waivers of notice by Holders shall be filed with the Trustee,  but
such filing  shall not be a condition  precedent  to the  validity of any action
taken in reliance upon such waiver.

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

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

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

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

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

                  SECTION 112.  Legal  Holidays.  In any case where any Interest
Payment Date, Redemption Date, Repayment Date, sinking fund payment date, Stated
Maturity or Maturity of any Security shall not be a Business Day at any Place of
Payment,  then  (notwithstanding  any other  provision of this  Indenture or any
Security or coupon other than a provision in the  Securities of any series which
specifically states that such provision shall apply in lieu hereof),

                                       10

<PAGE>



payment of interest or any Additional Amounts or principal (and premium, if any)
or sinking  fund payment need not be made at such Place of Payment on such date,
but may be made on the next  succeeding  Business  Day at such  Place of Payment
with  the  same  force  and  effect  as if made on the  Interest  Payment  Date,
Redemption  Date,  Repayment Date or sinking fund payment date, or at the Stated
Maturity or Maturity;  provided  that no interest  shall accrue on the amount so
payable for the period from and after such  Interest  Payment  Date,  Redemption
Date, Repayment Date, sinking fund payment date, Stated Maturity or Maturity, as
the case may be.

                  SECTION 113. No Personal  Liability.  THE DECLARATION OF TRUST
OF THE  COMPANY,  AS AMENDED AND  RESTATED ON AUGUST 21,  1995, A COPY OF WHICH,
TOGETHER WITH ALL AMENDMENTS THERETO (THE  "DECLARATION"),  IS DULY FILED IN THE
OFFICE OF THE DEPARTMENT OF  ASSESSMENTS  AND TAXATION OF THE STATE OF MARYLAND,
PROVIDES  THAT THE NAME  "HOSPITALITY  PROPERTIES  TRUST" REFERS TO THE TRUSTEES
UNDER  THE  DECLARATION  COLLECTIVELY  AS  TRUSTEES,  BUT  NOT  INDIVIDUALLY  OR
PERSONALLY, AND THAT NO TRUSTEE, OFFICER, SHAREHOLDER,  EMPLOYEE OR AGENT OF THE
COMPANY SHALL BE HELD TO ANY PERSONAL LIABILITY,  JOINTLY OR SEVERALLY,  FOR ANY
OBLIGATION  OF, OR CLAIM  AGAINST,  THE  COMPANY.  ALL PERSONS  DEALING WITH THE
COMPANY,  IN ANY WAY,  SHALL  LOOK  ONLY TO THE  ASSETS OF THE  COMPANY  FOR THE
PAYMENT OF ANY SUM OR THE PERFORMANCE OF ANY OBLIGATION.

                                   ARTICLE TWO

                                SECURITIES FORMS

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

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

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

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

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

                           _________________________________
                                                  as Trustee


                           By______________________________
                                        Authorized Officer


                                       11

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

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

                  Notwithstanding   the   provisions  of  Section  307,   unless
otherwise  specified as contemplated by Section 301, payment of principal of and
any premium and interest on any Security in permanent  global form shall be made
to the Person or Persons specified therein.

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


                                  ARTICLE THREE

                                 THE SECURITIES

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

                  The  Securities  may be  issued in one or more  series.  There
shall be established  in one or more Board  Resolutions or pursuant to authority
granted by one or more Board Resolutions and, subject to Section 303, set forth,
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, any or all of the following, as applicable (each of
which (except for the matters set forth in clauses (1), (2) and (14) below),  if
so provided,  may be determined from time to time by the Company with respect to
unissued Securities of the series when issued from time to time):

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

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

                                       12
<PAGE>
                           (3) the date or dates,  or the  method by which  such
         date or  dates  will be  determined,  on  which  the  principal  of the
         Securities of the series shall be payable;

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

                           (5) the place or places where the  principal  of, any
         premium and interest on and any Additional  Amounts  payable in respect
         of,  Securities  of  the  series  shall  be  payable,   any  Registered
         Securities  of  the  series  may be  surrendered  for  registration  of
         transfer,  exchange or conversion and notices or demands to or upon the
         Company in respect of the  Securities of the series and this  Indenture
         may be served;

                           (6) the period or periods within which or the date or
         dates on which,  the price or  prices  at  which,  and other  terms and
         conditions  upon which  Securities  of the series may be  redeemed,  in
         whole or in part,  at the option of the  Company,  if the Company is to
         have the option;

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

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

                           (9) if other than  Dollars,  the Foreign  Currency or
         Currencies in which payment of the principal of (and premium,  if any),
         interest, if any, on, and Additional Amounts, if any, on the Securities
         of the series shall be payable,  in which the  Securities of the series
         shall be redeemed or purchased or in which the Securities of the series
         shall be denominated;

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

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

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

                                       13
<PAGE>
         to be payable and the currency or currencies, currency unit or units or
         composite  currency or  currencies in which such  Securities  are to be
         paid;

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

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

                           (15)  whether  Securities  of  the  series  are to be
         issuable as Registered  Securities,  Bearer Securities (with or without
         coupons) or both,  any  restrictions  applicable to the offer,  sale or
         delivery  of  Bearer   Securities  and  the  terms  upon  which  Bearer
         Securities of the series may be exchanged for Registered  Securities of
         the  series  and  vice  versa  (if  permitted  by  applicable  laws and
         regulations),  whether any  Securities of the series are to be issuable
         initially in temporary  global form and whether any  Securities  of the
         series are to be  issuable  in  permanent  global  form with or without
         coupons and, if so, whether  beneficial owners of interests in any such
         permanent global Security may exchange such interests for Securities of
         such series and of like tenor of any authorized  form and  denomination
         and the  circumstances  under which any such  exchanges  may occur,  if
         other than in the manner  provided in Section 305,  and, if  Registered
         Securities of the series are to be issuable as a global  Security,  the
         identity of the depositary for such series;

                           (16) the date as of which any  Bearer  Securities  of
         the series and any temporary global Security  representing  Outstanding
         Securities  of the  series  shall be  dated  if other  than the date of
         original issuance of the first Security of the series to be issued;

                           (17)  the  Person  to  whom  any   interest   on  any
         Registered  Security of the series shall be payable,  if other than the
         Person  in  whose  name  that  Security  (or  one or  more  Predecessor
         Securities)  is  registered  at the close of  business  on the  Regular
         Record Date for such  interest,  the manner in which,  or the Person to
         whom,  any  interest  on any Bearer  Security  of the  series  shall be
         payable,  if  otherwise  than upon  presentation  and  surrender of the
         coupons  appertaining  thereto as they severally mature, and the extent
         to which, or the manner in which,  any interest  payable on a temporary
         global Security on an Interest  Payment Date will be paid if other than
         in the manner provided in Section 304;

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

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

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

                           (21) whether and under what circumstances the Company
         will pay  Additional  Amounts as  contemplated  by Section  1007 on the
         Securities  of the  series  to any  Holder  who is not a United  States
         person  (including any  modification to the definition of such term) in
         respect of any tax,  assessment  or  governmental  charge  and,  if so,
         whether  the  Company  will have the option to redeem  such  Securities
         rather  than pay such  Additional  Amounts  (and the  terms of any such
         option);

                           (22) the obligation, if any, of the Company to permit
         the  conversion of the  Securities of such series into Common Shares or
         Preferred  Shares of the Company or other  securities,  as the case may
         be, and the terms and conditions  upon which such  conversion  shall be
         effected (including, without limitation, the

                                       14
<PAGE>
         initial conversion price or rate, the conversion period, any adjustment
         of the applicable conversion price and any requirements relative to the
         reservation of such shares for purposes of conversion);

                           (23) the terms and  conditions,  if any,  upon  which
         payment of the Securities of such series shall be  subordinated  to the
         Securities  of  another  series or other  indebtedness  of the  Company
         (including, without limitation, indebtedness which ranks senior to such
         Securities;  restrictions  on  payments  to Holders of such  Securities
         while a default with respect to such senior indebtedness is continuing;
         restrictions,  if any, on  payments  to the Holders of such  Securities
         following an Event of Default; and any requirements for Holders of such
         Securities  to remit  certain  payments  to the  holders of such senior
         indebtedness);

                           (24) if the Securities of the series are to be 
         guaranteed, the term and conditions of such guarantee;

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

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

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

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

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

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

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

                  At any time and from  time to time  after  the  execution  and
delivery of this  Indenture,  the Company may deliver  Securities of any series,
together with any coupon  appertaining  thereto,  executed by the Company to the
Trustee for authentication, together with a Company Order for the authentication
and delivery of such Securities,  and the Trustee in accordance with the Company
Order shall authenticate and deliver such Securities;  provided,  however, that,
in connection with its original issuance,  no Bearer Security shall be mailed or
otherwise delivered to any location in the

                                       15
<PAGE>
United  States;  and provided  further that,  unless  otherwise  specified  with
respect to any series of Securities  pursuant to Section 301, a Bearer  Security
may be delivered in  connection  with its original  issuance  only if the Person
entitled to receive such Bearer  Security  shall have furnished a certificate in
the form set forth in Exhibit A-1 to this Indenture or such other certificate as
may be specified  with respect to any series of  Securities  pursuant to Section
301,  dated no earlier  than 15 days  prior to the  earlier of the date on which
such Bearer  Security is delivered and the date on which any temporary  Security
first becomes exchangeable for such Bearer Security in accordance with the terms
of such  temporary  Security  and  this  Indenture.  If any  Security  shall  be
represented by a permanent  global Bearer  Security,  then, for purposes of this
Section and Section 304, the notation of a beneficial  owner's  interest therein
upon  original  issuance  of such  Security  or upon  exchange of a portion of a
temporary  global Security shall be deemed to be delivery in connection with its
original  issuance of such beneficial  owner's interest in such permanent global
Security. Except as permitted by Section 306, the Trustee shall not authenticate
and deliver any Bearer Security unless all appurtenant coupons for interest then
matured have been detached and  cancelled.  If all the  Securities of any series
are not to be  issued at one time and if the Board  Resolution  or  supplemental
indenture  establishing such series shall so permit,  such Company Order may set
forth  procedures  acceptable to the Trustee for the issuance of such Securities
and  determining  the terms of  particular  Securities  of such series,  such as
interest rate or formula,  maturity  date,  date of issuance and date from which
interest shall accrue.  In  authenticating  such  Securities,  and accepting the
additional responsibilities under this Indenture in relation to such Securities,
the Trustee  shall be entitled to receive,  and (subject to TIA Sections  315(a)
through 315(d)) shall be fully protected in relying upon,

                           (i)      an Opinion of Counsel stating that

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

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

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

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

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

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

                                       16
<PAGE>
                  Each  Registered  Security  shall  be  dated  the  date of its
authentication  and each Bearer Security shall be dated as of the date specified
as contemplated by Section 301.

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

                  SECTION 304. Temporary Securities. (a) Pending the preparation
of  definitive  Securities  of any series,  the Company  may  execute,  and upon
Company Order the Trustee shall authenticate and deliver,  temporary  Securities
which  are  printed,  lithographed,   typewritten,   mimeographed  or  otherwise
produced,  in any  authorized  denomination,  substantially  of the tenor of the
definitive  Securities in lieu of which they are issued, in registered form, or,
if authorized,  in bearer form with one or more coupons or without coupons,  and
with such appropriate insertions, omissions,  substitutions and other variations
as the  officers  executing  such  Securities  may  determine,  as  conclusively
evidenced by their  execution of such  Securities.  In the case of Securities of
any series, such temporary Securities may be in global form.

                  Except in the case of  temporary  Securities  in  global  form
(which  shall be  exchanged in  accordance  with Section  304(b) or as otherwise
provided in or pursuant to a Board Resolution),  if temporary  Securities of any
series are issued,  the Company will cause definitive  Securities of that series
to be prepared without  unreasonable  delay. After the preparation of definitive
Securities  of such series,  the  temporary  Securities  of such series shall be
exchangeable  for  definitive  Securities  of such series upon  surrender of the
temporary  Securities of such series at the office or agency of the Company in a
Place of Payment for that series,  without charge to the Holder.  Upon surrender
for  cancellation  of any  one  or  more  temporary  Securities  of  any  series
(accompanied by any non-matured coupons appertaining thereto), the Company shall
execute and the Trustee shall  authenticate  and deliver in exchange  therefor a
like principal amount of definitive  Securities of the same series of authorized
denominations;  provided,  however,  that no definitive Bearer Security shall be
delivered in exchange for a temporary Registered Security;  and provided further
that a definitive Bearer Security shall be delivered in exchange for a temporary
Bearer Security only in compliance with the conditions set forth in Section 303.
Until so exchanged, the temporary Securities of any series shall in all respects
be entitled to the same benefits under this  Indenture as definitive  Securities
of such series.

                  (b)  Unless  otherwise  provided  in or  pursuant  to a  Board
Resolution,   this  Section  304(b)  shall  govern  the  exchange  of  temporary
Securities  issued in global form other than through the  facilities  of DTC. If
any such temporary Security is issued in global form, then such temporary global
Security shall,  unless otherwise  provided therein,  be delivered to the London
office of a depositary or common depositary (the "Common  Depositary"),  for the
benefit of Euroclear  and CEDEL,  for credit to the  respective  accounts of the
beneficial  owners of such  Securities  (or to such other  accounts  as they may
direct).

                  Without  unnecessary delay but in any event not later than the
date  specified in, or determined  pursuant to the terms of, any such  temporary
global Security (the "Exchange Date"),  the Company shall deliver to the Trustee
definitive  Securities,  in aggregate  principal  amount equal to the  principal
amount of such temporary global Security,  executed by the Company.  On or after
the Exchange Date,  such temporary  global  Security shall be surrendered by the
Common Depositary to the Trustee, as the Company's agent for such purpose, to be
exchanged,  in whole or from  time to time in part,  for  definitive  Securities
without charge, and the Trustee shall authenticate and deliver,  in exchange for
each portion of such temporary  global  Security,  an equal aggregate  principal
amount of definitive  Securities of the same series of authorized  denominations
and of like  tenor  as the  portion  of such  temporary  global  Security  to be
exchanged.

                                       17
<PAGE>
The  definitive  Securities  to be delivered in exchange for any such  temporary
global  Security  shall be in bearer form,  registered  form,  permanent  global
bearer form or permanent global registered form, or any combination  thereof, as
specified as contemplated by Section 301, and, if any combination  thereof is so
specified,  as requested by the  beneficial  owner thereof;  provided,  however,
that,  unless otherwise  specified in such temporary global Security,  upon such
presentation  by the  Common  Depositary,  such  temporary  global  Security  is
accompanied  by a certificate  dated the Exchange Date or a subsequent  date and
signed by Euroclear as to the portion of such temporary global Security held for
its account then to be exchanged and a certificate  dated the Exchange Date or a
subsequent  date and signed by CEDEL as to the portion of such temporary  global
Security held for its account then to be  exchanged,  each in the form set forth
in Exhibit  A-2 to this  Indenture  or in such other form as may be  established
pursuant to Section 301; and provided further that definitive  Bearer Securities
shall be delivered in exchange for a portion of a temporary global Security only
in compliance with the requirements of Section 303.

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

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

                  SECTION  305.  Registration,   Registration  of  Transfer  and
Exchange.  The Company shall cause to be kept at the  Corporate  Trust Office of
the  Trustee or in any  office or agency of the  Company in a Place of Payment a
register for each series of Securities (the registers  maintained in such office
or in any such  office or  agency of the  Company  in a Place of  Payment  being
herein sometimes referred to collectively as the "Security  Register") in which,
subject to such  reasonable  regulations as it may prescribe,  the Company shall
provide for the  registration  of  Registered  Securities  and of  transfers  of
Registered  Securities.  The Security  Register  shall be in written form or any
other form
                                       18
<PAGE>
capable of being  converted  into  written form within a  reasonable  time.  The
Trustee,  at its Corporate Trust Office, is hereby initially appointed "Security
Registrar" for the purpose of registering Registered Securities and transfers of
Registered Securities on such Security Register as herein provided. In the event
that the Trustee shall cease to be Security  Registrar,  it shall have the right
to examine the Security Register at all reasonable times.

                  Subject to the  provisions of this Section 305, upon surrender
for  registration  of transfer of any  Registered  Security of any series at any
office or agency of the  Company  in a Place of  Payment  for that  series,  the
Company shall execute,  and the Trustee shall  authenticate and deliver,  in the
name of the  designated  transferee or  transferees,  one or more new Registered
Securities of the same series,  of any  authorized  denominations  and of a like
aggregate principal amount, bearing a number not contemporaneously  outstanding,
and containing identical terms and provisions.

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

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

                  Notwithstanding  the foregoing,  except as otherwise specified
as  contemplated  by  Section  301,  any  permanent  global  Security  shall  be
exchangeable  only as  provided in this  paragraph.  If the  depositary  for any
permanent global Security is DTC, then, unless the terms of such global Security
expressly  permit such global  Security to be  exchanged in whole or in part for
definitive Securities, a global Security may be transferred, in whole but not in
part, only to a nominee of DTC, or by a nominee of DTC to DTC, or to a successor
to DTC for such  global  Security  selected  or  approved by the Company or to a
nominee of such successor to DTC. If at any time DTC notifies the Company that

                                       19
<PAGE>
it is unwilling or unable to continue as depositary  for the  applicable  global
Security  or  Securities  or if at any time DTC ceases to be a  clearing  agency
registered under the Securities Exchange Act of 1934, as amended, if so required
by  applicable  law  or  regulation,  the  Company  shall  appoint  a  successor
depositary  with  respect  to  such  global  Security  or  Securities.  If (x) a
successor  depositary for such global Security or Securities is not appointed by
the  Company  within 90 days after the Company  receives  such notice or becomes
aware of such unwillingness, inability or ineligibility, (y) an Event of Default
has occurred and is continuing and the beneficial owners representing a majority
in principal amount of the applicable  series of Securities  represented by such
global Security or Securities  advise DTC to cease acting as depositary for such
global  Security  or  Securities  or (z) the  Company,  in its sole  discretion,
determines at any time that all  Outstanding  Securities (but not less than all)
of any series  issued or issuable  in the form of one or more global  Securities
shall no longer be represented by such global  Security or Securities,  then the
Company  shall  execute,   and  the  Trustee  shall  authenticate  and  deliver,
definitive  Securities of like series,  rank, tenor and terms in definitive form
in an aggregate  principal  amount equal to the principal  amount of such global
Security or Securities.  If any  beneficial  owner of an interest in a permanent
global  Security is otherwise  entitled to exchange such interest for Securities
of such series and of like tenor and principal amount of another authorized form
and denomination,  as specified as contemplated by Section 301 and provided that
any applicable  notice provided in the permanent global Security shall have been
given,  then  without  unnecessary  delay  but in any  event no  later  than the
earliest  date on which such  interest may be so  exchanged,  the Company  shall
execute, and the Trustee shall authenticate and deliver,  definitive  Securities
in aggregate  principal  amount equal to the principal amount of such beneficial
owner's  interest in such permanent  global  Security.  On or after the earliest
date on which such interests may be so exchanged, such permanent global Security
shall be  surrendered  for exchange by DTC or such other  depositary as shall be
specified  in the Company  Order with  respect  thereto to the  Trustee,  as the
Company's agent for such purpose; provided,  however, that no such exchanges may
occur  during a period  beginning  at the opening of business 15 days before any
selection of  Securities  to be redeemed  and ending on the relevant  Redemption
Date if the Security for which exchange is requested may be among those selected
for  redemption;  and  provided  further  that no Bearer  Security  delivered in
exchange  for a  portion  of a  permanent  global  Security  shall be  mailed or
otherwise  delivered  to any  location  in the United  States.  If a  Registered
Security is issued in exchange  for any portion of a permanent  global  Security
after the close of business at the office or agency where such  exchange  occurs
on (i) any Regular Record Date and before the opening of business at such office
or agency on the relevant Interest Payment Date, or (ii) any Special Record Date
and  before the  opening of  business  at such  office or agency on the  related
proposed date for payment of Defaulted Interest, interest or Defaulted Interest,
as the case  may be,  will  not be  payable  on such  Interest  Payment  Date or
proposed  date for  payment,  as the case may be, in respect of such  Registered
Security, but will be payable on such Interest Payment Date or proposed date for
payment,  as the case may be, only to the Person to whom  interest in respect of
such portion or such permanent global Security is payable in accordance with the
provisions of this Indenture.

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

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

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

                  The  Company  or the  Trustee,  as  applicable,  shall  not be
required (i) to issue, register the transfer of or exchange any Security if such
Security may be among those selected for redemption during a period beginning at
the  opening of  business  15 days  before  selection  of the  Securities  to be
redeemed  under  Section 1103 and ending at the close of business on (A) if such
Securities are issuable only as Registered Securities, the day of the mailing of
the relevant  notice of redemption  and (B) if such  Securities  are issuable as
Bearer Securities, the day of the first publication of the

                                       20
<PAGE>
relevant  notice of  redemption  or, if such  Securities  are also  issuable  as
Registered  Securities and there is no publication,  the mailing of the relevant
notice of  redemption,  or (ii) to register  the  transfer  of or  exchange  any
Registered  Security so selected for redemption in whole or in part,  except, in
the case of any Registered  Security to be redeemed in part, the portion thereof
not to be  redeemed,  or (iii) to exchange  any Bearer  Security so selected for
redemption  except that such a Bearer Security may be exchanged for a Registered
Security  of that  series  and of like  tenor;  provided  that  such  Registered
Security shall be simultaneously  surrendered for redemption,  or (iv) to issue,
register the transfer of or exchange any Security which has been surrendered for
repayment  at the option of the  Holder,  except that  portion,  if any, of such
Security which is not to be so repaid.

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

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

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

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

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

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

                  SECTION 307. Payment of Interest;  Interest Rights  Preserved.
Except  as  otherwise  specified  with  respect  to a series  of  Securities  in
accordance  with the  provisions  of Section  301,  interest  on any  Registered
Security that
                                       21
<PAGE>
is payable, and is punctually paid or duly provided for, on any Interest Payment
Date  shall be paid to the Person in whose  name that  Security  (or one or more
Predecessor  Securities)  is  registered at the close of business on the Regular
Record Date for such interest at the office or agency of the Company  maintained
for such  purpose  pursuant  to  Section  1002;  provided,  however,  that  each
installment of interest on any Registered  Security may at the Company's  option
be paid by (i) mailing a check for such interest, payable to or upon the written
order of the Person entitled  thereto pursuant to Section 308, to the address of
such  Person as it appears  on the  Security  Register  or (ii)  transfer  to an
account maintained by the payee located inside the United States.

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

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

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

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

                           (1) The  Company  may  elect to make  payment  of any
         Defaulted  Interest  to the  Persons  in  whose  names  the  Registered
         Securities of such series (or their respective Predecessor  Securities)
         are  registered  at the close of business on a Special  Record Date for
         the  payment of such  Defaulted  Interest,  which shall be fixed in the
         following  manner.  The Company  shall notify the Trustee in writing of
         the amount of Defaulted Interest proposed to be paid on each Registered
         Security of such  series and the date of the  proposed  payment  (which
         shall not be less than 20 days after  such  notice is  received  by the
         Trustee),  and at the same  time the  Company  shall  deposit  with the
         Trustee an amount of money in the currency or currencies, currency unit
         or units or composite currency or currencies in which the Securities of
         such  series are payable  (except as  otherwise  specified  pursuant to
         Section 301 for the  Securities  of such series) equal to the aggregate
         amount  proposed  to be paid in respect of such  Defaulted  Interest or
         shall make arrangements satisfactory to the Trustee for such deposit on
         or prior to the date of the proposed payment, such money when deposited
         to be held in trust for the  benefit of the  Persons  entitled  to such
         Defaulted  Interest as in this clause  provided.  Thereupon the Trustee
         shall fix a  Special  Record  Date for the  payment  of such  Defaulted
         Interest which shall not be more than 15 days and not less than 10 days
         prior to the date of the  proposed  payment  and not less  than 10 days
         after the receipt by the Trustee of the notice of the proposed payment.
         The Trustee shall  promptly  notify the Company of such Special  Record
         Date and,  in the name and at the expense of the  Company,  shall cause
         notice of the  proposed  payment  of such  Defaulted  Interest  and the
         Special Record Date therefor to be mailed, first-class postage prepaid,
         to each Holder of  Registered  Securities of such series at his address
         as it appears in the  Security  Register not less than 10 days prior to
         such Special  Record Date. The Trustee may, in its  discretion,  in the
         name and at the expense of the  Company,  cause a similar  notice to be
         published  at least once in an  Authorized  Newspaper  in each Place of
         Payment,  but such publications  shall not be a condition  precedent to
         the  establishment of such Special Record Date.  Notice of the proposed
         payment of such Defaulted Interest and
                                       22
<PAGE>
         the Special Record Date therefor having been mailed as aforesaid,  such
         Defaulted  Interest  shall be paid to the  Persons  in whose  names the
         Registered  Securities of such series (or their respective  Predecessor
         Securities)  are  registered  at the close of business on such  Special
         Record Date and shall no longer be payable  pursuant  to the  following
         clause (2). In case a Bearer  Security of any series is surrendered for
         transfer  or exchange at the office or agency in a Place of Payment for
         such series after the close of business at such office or agency on any
         Special  Record  Date and before the opening of business at such office
         or  agency  on the  related  proposed  date for  payment  of  Defaulted
         Interest,  such Bearer Security shall be surrendered without the coupon
         relating to such proposed  date of payment and Defaulted  Interest will
         not be  payable  on such  proposed  date of  payment  in respect of the
         Registered  Security issued in exchange for such Bearer  Security,  but
         will  be  payable  only  to the  Holder  of  such  coupon  when  due in
         accordance with the provisions of this Indenture.

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

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

                  SECTION 308.  Persons Deemed Owners.  Prior to due presentment
of a Registered Security for registration of transfer,  the Company, the Trustee
and any agent of the  Company or the  Trustee may treat the Person in whose name
such  Registered  Security is  registered  as the owner of such Security for the
purpose of receiving payment of principal of (and premium, if any), and (subject
to Sections 305 and 307) interest on, such Registered Security and for all other
purposes  whatsoever,  whether or not such Registered  Security is overdue,  and
neither  the  Company,  the  Trustee nor any agent of the Company or the Trustee
shall be affected by notice to the contrary.

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

                  None of the  Company,  the  Trustee,  any Paying  Agent or the
Security  Registrar will have any  responsibility or liability for any aspect of
the  records  relating to or payments  made on account of  beneficial  ownership
interests  of a  Security  in global  form or for  maintaining,  supervising  or
reviewing any records relating to such beneficial ownership interests.

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

                  SECTION  309.   Cancellation.   All   Securities  and  coupons
surrendered  for  payment,  redemption,  repayment  at the option of the Holder,
registration  of transfer or  exchange  or for credit  against any sinking  fund
payment shall, if surrendered to any Person other than the Trustee, be delivered
to the Trustee,  and any such  Securities and coupons and Securities and coupons
surrendered  directly  to the  Trustee  for any such  purpose  shall be promptly
cancelled  by it.  The  Company  may at any  time  deliver  to the  Trustee  for
cancellation any Securities  previously  authenticated  and delivered  hereunder
which the Company may have acquired in any manner whatsoever, and may deliver to
the  Trustee  (or  to  any  other  Person  for  delivery  to  the  Trustee)  for
cancellation any Securities previously authenticated hereunder which the Company
has not issued and sold,  and all  Securities  so  delivered  shall be  promptly
cancelled by the Trustee.

                                       23
<PAGE>
If the Company shall so acquire any of the Securities, however, such acquisition
shall  not  operate  as  a  redemption  or  satisfaction  of  the   indebtedness
represented by such Securities  unless and until the same are surrendered to the
Trustee for cancellation.  No Securities shall be authenticated in lieu of or in
exchange for any  Securities  cancelled as provided in this  Section,  except as
expressly permitted by this Indenture.  Cancelled Securities and coupons held by
the Trustee  shall be destroyed by the Trustee and the Trustee  shall  deliver a
certificate of such  destruction  to the Company,  unless by a Company Order the
Company directs their return to it.

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

                                  ARTICLE FOUR

                           SATISFACTION AND DISCHARGE

                  SECTION 401.  Satisfaction  and Discharge of  Indenture.  This
Indenture  shall upon Company Request cease to be of further effect with respect
to any series of Securities  specified in such Company Request (except as to any
surviving  rights of  registration of transfer or exchange of Securities of such
series  herein  expressly  provided  for and any  right  to  receive  Additional
Amounts,  as provided  in Section  1007),  and the  Trustee,  upon  receipt of a
Company  Order,  and at  the  expense  of  the  Company,  shall  execute  proper
instruments  acknowledging  satisfaction  and discharge of this  Indenture as to
such series when

                           (1)  either

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

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

                                        (i)       have  become due and  payable,
                                                  or

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

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

                  and the Company,  in the case of (i), (ii) or (iii) above, has
                  irrevocably  deposited  or  caused  to be  deposited  with the
                  Trustee  as funds in trust for such  purpose  an amount in the
                  currency or  currencies,  currency  unit or units or composite
                  currency or currencies in which the  Securities of such series
                  are
                                       24
<PAGE>
                  payable,   sufficient   to  pay  and   discharge   the  entire
                  indebtedness   on  such   Securities   and  such  coupons  not
                  theretofore  delivered  to the Trustee for  cancellation,  for
                  principal  (and  premium,  if  any)  and  interest,   and  any
                  Additional  Amounts with respect thereto,  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 as to such series have been  complied
         with.

The obligations of the Company to the Trustee and any predecessor  Trustee under
Section 606, the  obligations of the Company to any  Authenticating  Agent under
Section 611 and, if money shall have been deposited with and held by 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
the satisfaction and discharge of this Indenture.

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

                                  ARTICLE FIVE

                                    REMEDIES

                  SECTION 501. Events of Default.  "Event of Default",  wherever
used herein with respect to any particular  series of Securities,  means any one
of the  following  events  (whatever  the reason  for such Event of Default  and
whether or not it 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):

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

                           (2)  default in the payment of the  principal  of (or
         premium,  if any,  on) any  Security of that series when it becomes due
         and payable at its Maturity; or

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

                           (4) default in the  performance of, or breach of, any
         covenant  of the  Company in this  Indenture  (other  than a covenant a
         default  in whose  performance  or whose  breach is  elsewhere  in this
         Section specifically dealt with or which has been expressly included in
         this Indenture  solely for the benefit of a 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 a majority in  principal  amount of
         the Outstanding Securities of that series a

                                       25
<PAGE>
         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) a  default  under any  bond,  debenture,  note or
         other evidence of indebtedness  of the Company,  or under any mortgage,
         indenture or other instrument of the Company  (including a default with
         respect to Securities of any series other than that series) under which
         there may be issued or by which there may be secured  any  indebtedness
         of the  Company  (or by any  Subsidiary,  the  repayment  of which  the
         Company has guaranteed or for which the Company is directly responsible
         or liable as obligor  or  guarantor),  whether  such  indebtedness  now
         exists or shall hereafter be created,  which default shall constitute a
         failure to pay an aggregate  principal amount  exceeding  $_________ of
         such  indebtedness  when due and payable  after the  expiration  of any
         applicable grace period with respect thereto and shall have resulted in
         such   indebtedness  in  an  aggregate   principal   amount   exceeding
         $__________  becoming or being  declared  due and payable  prior to the
         date on which it would  otherwise have become due and payable,  without
         such indebtedness  having been discharged,  or such acceleration having
         been  rescinded  or  annulled,  within a period of 10 days after  there
         shall have 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 a majority in principal  amount of the Outstanding  Securities of
         that series a written notice  specifying such default and requiring the
         Company  to cause  such  indebtedness  to be  discharged  or cause such
         acceleration  to be  rescinded or annulled and stating that such notice
         is a "Notice of Default" hereunder; or

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

                           (A) commences a voluntary case,

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

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

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

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

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

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

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

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

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

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

                  SECTION  502.   Acceleration   of  Maturity;   Rescission  and
Annulment.  If an Event of Default with respect to  Securities  of any series at
the time  Outstanding  occurs and is continuing  (other than an Event of Default
described in Section 501(6) or 501(7)),  then and in every such case the Trustee
or the Holders of not less than a majority

                                       26

<PAGE>
in principal amount of the Outstanding Securities of that series may declare the
principal  (or, if any  Securities  are Original  Issue  Discount  Securities or
Indexed  Securities,  such  portion of the  principal as may be specified in the
terms  thereof)  of all the  Securities  of that  series  to be due and  payable
immediately,  by a notice in writing to the Company (and to the Trustee if given
by the  Holders),  and upon any such  declaration  such  principal  or specified
portion thereof shall become immediately due and payable. If an Event of Default
described in Section  501(6) or 501(7) with respect to any series of  Securities
at the time outstanding occurs, the principal amount of all of the Securities of
that series (or, in the case of any such Original Issue  Discount  Securities or
Indexed  Securities,  such  portion of the  principal as may be specified in the
terms thereof) will automatically,  and without any action by the Trustee or any
Holder thereof, 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 in the  currency,  currency  unit or
         composite  currency in which the  Securities of such series are payable
         (except  as  otherwise  specified  pursuant  to  Section  301  for  the
         Securities of such series):

                                    (A) all overdue  installments of interest on
                  and  any  Additional   Amounts   payable  in  respect  of  all
                  Outstanding Securities of that series and any related coupons,

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

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

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

                           (2) all Events of Default with respect to  Securities
         of that  series,  other than the  nonpayment  of the  principal  of (or
         premium,  if any) or interest on  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 installment
         of  interest or  Additional  Amounts,  if any,  on any  Security of any
         series and any related  coupon when such interest or Additional  Amount
         becomes due and payable and such default  continues  for a period of 30
         days, or

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

then the Company will, upon demand of the Trustee,  pay to the Trustee,  for the
benefit of the Holders of such Securities of such series and coupons,  the whole
amount then due and payable on such  Securities  and coupons for principal  (and
premium, if any) and interest and Additional Amounts thereon, with interest upon
any overdue  principal (and premium,  if any) and, to the extent that payment of
such interest shall be legally enforceable, upon any overdue installments of

                                       27
<PAGE>
interest or Additional Amounts thereon, if any, at the rate or rates borne by or
provided for 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 the Company fails to pay such amounts  forthwith  upon such
demand,  the Trustee,  in its own name and as trustee of an express  trust,  may
institute  a  judicial  proceeding  for the  collection  of the  sums so due and
unpaid,  and may prosecute such proceeding to judgment or final decree,  and may
enforce the same against the Company or any other  obligor upon such  Securities
of such series and  collect the moneys  adjudged or decreed to be payable in the
manner  provided by law out of the property of the Company or any other  obligor
upon such Securities of such series, wherever situated.

                  If an Event of  Default  with  respect  to  Securities  of any
series occurs and is continuing,  the Trustee may in its  discretion  proceed to
protect and enforce  its rights and the rights of the Holders of  Securities  of
such series and any related coupons 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 the
pendency   of   any   receivership,    insolvency,   liquidation,    bankruptcy,
reorganization,   arrangement,   adjustment,   composition   or  other  judicial
proceeding  relative to the Company or any other obligor upon the  Securities or
the  property of the Company or of such other  obligor or their  creditors,  the
Trustee  (irrespective  of whether the principal of the Securities of any series
shall  then be due  and  payable  as  therein  expressed  or by  declaration  or
otherwise and  irrespective of whether the Trustee shall have made any demand on
the  Company  for the payment of overdue  principal  of, or premium,  if any, or
interest on, the Securities) shall be entitled and empowered, by intervention in
such proceeding or otherwise:

                           (i) to file and prove a claim  for the whole  amount,
         or such lesser amount as may be provided for in the  Securities of such
         series, of principal (and premium,  if any) and interest and Additional
         Amount,  if any,  owing and unpaid in respect of the  Securities and to
         file such other papers or documents as may be necessary or advisable in
         order to have the claims of the  Trustee  (including  any claim for the
         reasonable  compensation,  expenses,  disbursements and advances of the
         Trustee,  its agents and  counsel)  and of the Holders  allowed in such
         judicial proceeding, and

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

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

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

                  SECTION 505. Trustee May Enforce Claims Without  Possession of
Securities or Coupons.  All rights of action and claims under this  Indenture or
any of the  Securities or coupons may be prosecuted  and enforced by the Trustee
without the  possession of any of the  Securities  or coupons or the  production
thereof in any proceeding relating thereto,  and any such proceeding  instituted
by the Trustee shall be brought in its own name as trustee of an express  trust,
and any  recovery  of judgment  shall,  after  provision  for the payment of the
reasonable compensation, expenses,
                                       28
<PAGE>
disbursements  and advances of the Trustee,  its agents and counsel,  be for the
ratable  benefit of the  Holders of  Securities  and coupons in respect of which
such judgment has been recovered.

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

                           FIRST:  To the payment of all amounts due to the 
         Trustee and any predecessor Trustee under Section 606;

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

                           THIRD:  To the payment of the remainder, if any, to 
         the Company.

                  SECTION 507. Limitation on Suits. No Holder of any Security of
any  series  or any  related  coupon  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 a  majority  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 such
Holders.

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

                                       29
<PAGE>
                  SECTION  509.  Restoration  of  Rights  and  Remedies.  If the
Trustee or any Holder of a Security or coupon has  instituted  any proceeding to
enforce any right or remedy under this  Indenture and such  proceeding  has been
discontinued or abandoned for any reason,  or has been  determined  adversely to
the  Trustee or to such  Holder,  then and in every such case the  Company,  the
Trustee  and the  Holders  of  Securities  and  coupons  shall,  subject  to any
determination  in such  proceeding,  be restored  severally and  respectively to
their former  positions  hereunder and thereafter all rights and remedies of the
Trustee and the Holders  shall  continue as though no such  proceeding  had been
instituted.

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

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

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

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

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

                  (3) the Trustee need not take any action which might expose it
         to  personal  liability  or be unduly  prejudicial  to the  Holders  of
         Securities of such series not joining therein.

                  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  and any
related coupons waive any past default hereunder with respect to such series and
its consequences, except a default

                  (1) in the payment of the principal of (or premium, if any) or
         interest on or Additional Amounts payable in respect of any Security of
         such series or any related coupons, 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 Event of Default or impair any right consequent thereon.

                  SECTION  514.  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
                                       30
<PAGE>

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.

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

                                   ARTICLE SIX

                                   THE TRUSTEE

                  SECTION  601.  Notice of  Defaults.  Within 90 days  after the
occurrence  of any  default  hereunder  with  respect to the  Securities  of any
series,  the Trustee shall transmit in the manner and to the extent  provided in
TIA Section  313(c),  notice of such  default  hereunder  known to the  Trustee,
unless such default shall have been cured or waived;  provided,  however,  that,
except in the case of a default in the payment of the  principal of (or premium,
if any) or interest on or any  Additional  Amounts or sinking  fund  installment
with respect to the Securities of such series, the Trustee shall be protected in
withholding such notice if and so long as Responsible Officers of the Trustee in
good faith  determine that the  withholding of such notice is in the interest of
the Holders of the Securities and coupons of such series;  and provided  further
that in the case of any default or breach of the character  specified in Section
501(4) with respect to the Securities and coupons of such series, no such notice
to Holders shall be given until at least 60 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 the Securities of such series.

                  SECTION  602.  Certain  Rights  of  Trustee.  Subject  to  the
provisions of TIA Section 315(a) through 315(d):

                           (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,  coupon  or  other  paper or
         document  believed  by it to be  genuine  and to have  been  signed  or
         presented by the proper party or parties;

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

                                       31
<PAGE>
                           (4) the  Trustee  may  consult  with  counsel and the
         advice of such  counsel or any  Opinion  of  Counsel  shall be full and
         complete  authorization  and protection in respect of any action taken,
         suffered  or omitted  by it  hereunder  in good  faith and in  reliance
         thereon;

                           (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 of  Securities  of any
         series or any related coupons  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, coupon or other paper
         or document, but the Trustee, in its discretion,  may make such further
         inquiry or investigation  into such facts or matters as it may see fit,
         and, if the Trustee  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;

                           (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; and

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

                  The  Trustee  shall not be  required to expend or risk its own
funds or otherwise  incur any financial  liability in the  performance of any of
its duties hereunder, or in the exercise of any of its rights or powers.

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

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

                  SECTION 605. Money Held in Trust. 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 otherwise agreed with the Company.

                  SECTION  606.  Compensation  and  Reimbursement.  The  Company
agrees:

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

                                       32
<PAGE>
                           (2) except as otherwise expressly provided herein, to
         reimburse  each of the Trustee  and any  predecessor  Trustee  upon its
         request  for  all  reasonable  expenses,   disbursements  and  advances
         incurred or made by the Trustee in  accordance  with any  provision  of
         this Indenture (including the reasonable  compensation and the expenses
         and disbursements of its agents and counsel),  except any such expense,
         disbursement or advance as may be attributable to its negligence or bad
         faith; and

                           (3)  to  indemnify   each  of  the  Trustee  and  any
         predecessor  Trustee  for, and to hold it harmless  against,  any loss,
         liability or expense  incurred  without  negligence or bad faith on its
         own  part,  arising  out of or in  connection  with the  acceptance  or
         administration  of the trust or trusts  hereunder,  including the costs
         and  expenses of  defending  itself  against any claim or  liability in
         connection  with the  exercise or  performance  of any of its powers or
         duties hereunder.

                  When the  Trustee  incurs  expenses  or  renders  services  in
connection  with an Event of  Default  specified  in  Section  501(6) or Section
501(7),  the  expenses  (including  the  reasonable  charges and expenses of its
counsel)  and the  compensation  for the  services  are  intended to  constitute
expenses of  administration  under any applicable  Federal or state  bankruptcy,
insolvency or other similar law.

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

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

                  SECTION  607.   Corporate   Trustee   Required;   Eligibility;
Conflicting  Interests.  There shall at all times be a Trustee  hereunder  which
shall be eligible to act as Trustee under TIA Section 310(a)(1) and shall have a
combined  capital  and  surplus  of at least  $50,000,000.  If such  corporation
publishes  reports  of  condition  at  least  annually,  pursuant  to law or the
requirements of Federal, state,  Territorial or District of Columbia supervising
or  examining  authority,  then for the purposes of this  Section,  the combined
capital  and  surplus  of such  corporation  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  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  608.   Resignation   and  Removal;   Appointment   of
Successor.  (a) No resignation or removal of the Trustee and no appointment of a
successor  Trustee  pursuant to this Article  shall become  effective  until the
acceptance  of  appointment  by the  successor  Trustee in  accordance  with the
applicable requirements of Section 609.

                  (b) The  Trustee  may  resign at any time with  respect to the
Securities  of one or more  series  by  giving  written  notice  thereof  to the
Company.  If an instrument  of acceptance by a successor  Trustee 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.

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

                  (d)  If at any time:

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

                                       33
<PAGE>
                           (2) the  Trustee  shall  cease to be  eligible  under
         Section 607(a) and shall fail to resign after written request  therefor
         by the Company or by any Holder of a Security  who has been a bona fide
         Holder of a Security for at least six months, 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, (i) the Company by or pursuant to a Board Resolution may
remove  the  Trustee  and  appoint  a  successor  Trustee  with  respect  to all
Securities,  or (ii) subject to TIA Section 315(e), any Holder of a Security 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.

                  (e)  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 reason with respect to the Securities of one or more series, the Company, by
or pursuant to a Board Resolution, shall promptly appoint a successor Trustee or
Trustees  with  respect  to the  Securities  of 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).
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,  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 of Securities  and accepted  appointment  in the manner  hereinafter
provided  any Holder of a Security who has been a bona fide Holder of a Security
of such  series for at least six months may, on behalf of himself and all others
similarly  situated,  petition  any  court  of  competent  jurisdiction  for the
appointment of a successor Trustee with respect to Securities of such series.

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

                  SECTION 609.  Acceptance of Appointment  by Successor.  (a) In
case of the  appointment  hereunder  of a successor  Trustee with respect to all
Securities,  every such successor Trustee shall execute, acknowledge and deliver
to  the  Company  and 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,  upon  request  of the  Company  or the
successor  Trustee,  such retiring  Trustee shall,  upon payment of its charges,
execute and deliver an instrument transferring to such successor Trustee all the
rights,  powers  and trusts of the  retiring  Trustee,  and shall  duly  assign,
transfer  and deliver to such  successor  Trustee all property and money held by
such retiring  Trustee  hereunder,  subject  nevertheless  to its claim, if any,
provided for in Section 606.

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

                                       34
<PAGE>
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.

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

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

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

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

                                       35
<PAGE>
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 further act on the part of the Trustee or the Authenticating Agent.

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

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

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

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

                           _________________________________
                                                  as Trustee


                           By:_________________________________
                                       as Authenticating Agent


                           By:__________________________________
                                          Authorized Officer


                                  ARTICLE SEVEN

                HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY

                  SECTION  701.  Disclosure  of Names and  Addresses of Holders.
Every Holder of Securities or coupons, by receiving and holding the same, agrees
with the Company and the  Trustee  that  neither the Company nor the Trustee nor
any  Authenticating  Agent nor any Paying Agent nor any Security Registrar shall
be held  accountable  by reason of the  disclosure of any  information as to the
names and addresses of the Holders of Securities in accordance

                                       36

<PAGE>

with TIA Section 312,  regardless of the source from which such  information was
derived, and that the Trustee shall not be held accountable by reason of mailing
any material pursuant to a request made under TIA Section 312(b).

                  SECTION 702.  Reports by Trustee.  Within 60 days after May 15
of each year  commencing  with the first  May 15 after  the  first  issuance  of
Securities pursuant to this Indenture, the Trustee shall transmit by mail to all
Holders of Securities as provided in TIA Section  313(c) a brief report dated as
of such May 15 if required by TIA Section 313(a).

                  SECTION 703.  Reports by Company.  The Company will:

                           (1) file with the  Trustee,  within 15 days after the
         Company is required to file the same with the Commission, copies of the
         annual reports and of the information,  documents and other reports (or
         copies of such portions of any of the foregoing as the  Commission  may
         from time to time by rules and regulations prescribe) which the Company
         may be required to file with the  Commission  pursuant to Section 13 or
         Section  15(d)  of the  Securities  Exchange  Act of 1934;  or,  if the
         Company  is not  required  to file  information,  documents  or reports
         pursuant to either of such Sections, then it will file with the Trustee
         and the Commission, in accordance with rules and regulations prescribed
         from  time to time by the  Commission,  such of the  supplementary  and
         periodic  information,  documents  and  reports  which may be  required
         pursuant  to  Section  13 of the  Securities  Exchange  Act of  1934 in
         respect of a security  listed and  registered on a national  securities
         exchange  as may be  prescribed  from  time to time in such  rules  and
         regulations;

                           (2) file  with the  Trustee  and the  Commission,  in
         accordance with rules and  regulations  prescribed from time to time by
         the Commission, such additional information, documents and reports with
         respect to compliance by the Company with the  conditions and covenants
         of this  Indenture  as may be required  from time to time by such rules
         and regulations; and

                           (3)  transmit by mail to the  Holders of  Securities,
         within 30 days after the filing thereof with the Trustee, in the manner
         and to the extent provided in TIA Section 313(c), such summaries of any
         information,  documents and reports required to be filed by the Company
         pursuant to  paragraphs  (1) and (2) of this section as may be required
         by  rules  and  regulations   prescribed  from  time  to  time  by  the
         Commission.

                  SECTION 704. Company to Furnish to Trustee Names and Addresses
of Holders. The Company will furnish or cause to be furnished to the Trustee:

                  (a)  semi-annually,  not later than 25 days after the  Regular
Record Date for interest for each series of Securities,  a list, in such form as
the Trustee may reasonably require, of the names and addresses of the Holders of
Registered Securities of such series as of such Regular Record Date, or if there
is  no  Regular  Record  Date  for  interest  for  such  series  of  Securities,
semiannually,  upon  such  dates as are set  forth in the  Board  Resolution  or
indenture supplemental hereto authorizing such series, and

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

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

                                  ARTICLE EIGHT

                CONSOLIDATION, MERGER, SALE, LEASE OR CONVEYANCE

                  SECTION 801.  Consolidations and Mergers of Company and Sales,
Leases and Conveyances Permitted Subject to Certain Conditions.  The Company may
consolidate  with,  or sell,  lease or convey  all or  substantially  all of its
assets to, or merge  with or into any other  corporation;  provided  that in any
such case, (i) either the Company

                                       37

<PAGE>

shall be the continuing  corporation,  or the successor  corporation  shall be a
corporation  organized  and  existing  under the laws of the United  States or a
State thereof and such successor  corporation shall expressly assume the due and
punctual  payment of the  principal  of (and  premium,  if any) and any interest
(including all Additional  Amounts, if any, payable pursuant to Section 1007) on
all of the  Securities,  according  to  their  tenor,  and the due and  punctual
performance  and  observance  of all of the  covenants  and  conditions  of this
Indenture to be performed by the Company by  supplemental  indenture,  complying
with Article Nine hereof, satisfactory to the Trustee, executed and delivered to
the Trustee by such corporation and (ii) immediately after giving effect to such
transaction  and treating any  indebtedness  which  becomes an obligation of the
Company or any  Subsidiary  as a result  thereof as having been  incurred by the
Company or such Subsidiary at the time of such transaction, no Event of Default,
and no event which,  after notice or the lapse of time, or both, would become an
Event of Default, shall have occurred and be continuing.

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

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

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

                                  ARTICLE NINE

                             SUPPLEMENTAL INDENTURES

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

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

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

                                       38
<PAGE>
                           (3) to add any  additional  Events of Default for the
         benefit of the Holders of all or any series of Securities  (and if such
         Events of Default  are to be for the benefit of less than all series of
         Securities,  stating  that such Events of Default are  expressly  being
         included  solely for the benefit of such  series);  provided,  however,
         that  in  respect  of  any  such  additional  Events  of  Default  such
         supplemental  indenture  may provide for a  particular  period of grace
         after default  (which period may be shorter or longer than that allowed
         in the  case  of  other  defaults)  or  may  provide  for an  immediate
         enforcement  upon such default or may limit the  remedies  available to
         the Trustee  upon such default or may limit the right of the Holders of
         a majority in  aggregate  principal  amount of that or those  series of
         Securities  to which such  additional  Events of Default apply to waive
         such default; or

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

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

                           (6)      to secure the Securities; or

                           (7) to establish  the form or terms of  Securities of
         any series and any related  coupons as  permitted  by Sections  201 and
         301,  including the provisions  and  procedures  relating to Securities
         convertible into Common Shares or Preferred  Shares of the Company,  as
         the case may be; 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; 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  which shall not be
         inconsistent  with the  provisions  of this  Indenture;  provided  such
         provisions  shall not adversely  affect the interests of the Holders of
         Securities  of  any  series  or any  related  coupons  in any  material
         respect; or

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

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

                                       39

<PAGE>

                           (1) change the Stated  Maturity of the  principal  of
         (or premium, if any, on) or any installment of principal of or interest
         on, any Security; or reduce the principal amount thereof or the rate or
         amount of interest thereon or any Additional Amounts payable in respect
         thereof,  or any premium payable upon the redemption thereof, or change
         any  obligation of the Company to pay  Additional  Amounts  pursuant to
         Section 1007 (except as contemplated by Section 801(i) and permitted by
         Section  901(1)),  or reduce the amount of the principal of an Original
         Issue  Discount   Security  that  would  be  due  and  payable  upon  a
         declaration of acceleration of the Maturity thereof pursuant to Section
         502 or the amount  thereof  provable in bankruptcy  pursuant to Section
         504, or  adversely  affect any right of  repayment at the option of the
         Holder of any Security,  or change any Place of Payment  where,  or the
         currency or currencies, currency unit or units or composite currency or
         currencies  in which,  any  Security  or any  premium  or the  interest
         thereon  is  payable,  or impair  the right to  institute  suit for the
         enforcement of any such payment on or after the Stated Maturity thereof
         (or,  in the case of  redemption  or  repayment  at the  option  of the
         Holder,  on or after the Redemption  Date or the Repayment Date, as the
         case may be), or

                           (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  with  respect to such  series (or
         compliance  with  certain  provisions  of  this  Indenture  or  certain
         defaults  hereunder  and  their  consequences)  provided  for  in  this
         Indenture,  or reduce the  requirements  of Section  1504 for quorum or
         voting, or

                           (3) modify  any of the  provisions  of this  Section,
         Section 513 or Section 1008, except to increase the required percentage
         to effect such action or to provide that certain  other  provisions  of
         this Indenture  cannot be modified or waived without the consent of the
         Holder of each Outstanding Security affected thereby.

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

                  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.

                  SECTION  903.   Execution  of  Supplemental   Indentures.   In
executing,  or accepting  the  additional  trusts  created by, any  supplemental
indenture  permitted by this Article or the  modification  thereby of the trusts
created by this Indenture,  the Trustee shall be entitled to receive,  and shall
be fully  protected  in relying  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 and of any
coupon appertaining thereto shall be bound thereby.

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

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

                                       40
<PAGE>
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, if any, Interest
and Additional Amounts.  The Company covenants and agrees for the benefit of the
Holders of each series of Securities  that it will duly and  punctually  pay the
principal of (and premium,  if any) and interest on and any  Additional  Amounts
payable in respect of the Securities of that series in accordance with the terms
of such  series  of  Securities,  any  coupons  appertaining  thereto  and  this
Indenture.  Unless  otherwise  specified  as  contemplated  by Section  301 with
respect to any series of  Securities,  any  interest  due on and any  Additional
Amounts  payable in respect of Bearer  Securities on or before  Maturity,  other
than Additional  Amounts, if any, payable as provided in Section 1007 in respect
of principal of (or premium, if any, on) such a Security,  shall be payable only
upon  presentation  and  surrender  of the  several  coupons  for such  interest
installments as are evidenced thereby as they severally mature. Unless otherwise
specified  with respect to Securities of any series  pursuant to Section 301, at
the option of the Company, all payments of principal may be paid by check to the
registered  Holder of the Registered  Security or other person entitled  thereto
against surrender of such Security.

                  SECTION 1002.  Maintenance of Office or Agency.  If Securities
of a series are  issuable  only as  Registered  Securities,  the  Company  shall
maintain  in each Place of Payment  for any  series of  Securities  an office or
agency  where  Securities  of that series may be presented  or  surrendered  for
payment or conversion,  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.  If  Securities  of a series are issuable as Bearer  Securities,  the
Company will maintain: (A) in the Borough of Manhattan, The City of New York, an
office or agency where any Registered Securities of that series may be presented
or  surrendered  for payment or conversion,  where any Registered  Securities of
that series may be surrendered for registration of transfer, where Securities of
that series may be  surrendered  for  exchange,  where notices and demands to or
upon the Company in respect of the  Securities of that series and this Indenture
may be served and where Bearer Securities of that series and related coupons may
be presented  or  surrendered  for payment or  conversion  in the  circumstances
described in the following  paragraph  (and not  otherwise);  (B) subject to any
laws or regulations  applicable  thereto,  in a Place of Payment for that series
which is located outside the United States, an office or agency where Securities
of that series and related  coupons may be presented and surrendered for payment
(including  payment of any  Additional  Amounts  payable on  Securities  of that
series pursuant to Section 1007) or conversion;  provided,  however, that if the
Securities  of that series are listed on the  Luxembourg  Stock  Exchange or any
other stock exchange  located  outside the United States and such stock exchange
shall so require, the Company will maintain a Paying Agent for the Securities of
that series in Luxembourg or any other required city located  outside the United
States,  as the case may be, so long as the Securities of that series are listed
on such exchange; and (C) subject to any laws or regulations applicable thereto,
in a Place of Payment  for that  series  located  outside  the United  States an
office  or  agency  where  any  Registered  Securities  of  that  series  may be
surrendered for registration of transfer, where Securities of that series may be
surrendered for 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 each  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,  except that Bearer  Securities of that series and the related  coupons
may  be  presented  and  surrendered  for  payment  (including  payment  of  any
Additional  Amounts  payable on Bearer  Securities  of that  series  pursuant to
Section 1007) or conversion at the offices  specified in the Security in London,
England,  and the Company hereby  appoints the same as its agent to receive such
respective  presentations,  surrenders,  notices  and  demands,  and the Company
hereby  appoints  the  Trustee  its  agent to  receive  all such  presentations,
surrenders, notices and demands.

                  Unless  otherwise  specified  with  respect to any  Securities
pursuant  to Section  301,  no payment of  principal,  premium or interest on or
Additional  Amounts in respect of Bearer  Securities shall be made at any office
or agency of the Company in the United  States or by check mailed to any address
in the United States or by transfer to an

                                       41
<PAGE>
account maintained with a bank located in the United States; provided,  however,
that, if the Securities of a series are payable in Dollars, payment of principal
of and any premium and interest on any Bearer Security (including any Additional
Amounts  payable on Securities of such series pursuant to Section 1007) shall be
made at the office of the Company's Paying Agent in the City of Boston,  if (but
only if)  payment  in  Dollars of the full  amount of such  principal,  premium,
interest or Additional  Amounts,  as the case may be, at all offices or agencies
outside  the  United  States  maintained  for such  purpose  by the  Company  in
accordance with this Indenture,  is illegal or effectively precluded by exchange
controls or other similar restrictions.

                  The Company may from time to time  designate one or more other
offices or agencies  where the Securities of one or more series may be presented
or  surrendered  for any or all of such  purposes,  and  may  from  time to time
rescind  such  designation;  provided,  however,  that  no such  designation  or
rescission shall in any manner relieve the Company of its obligation to maintain
an office or agency in  accordance  with the  requirements  set forth  above for
Securities of any series for such purposes. The Company 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. Unless otherwise specified with
respect to any  Securities  pursuant to Section 301 with  respect to a series of
Securities,  the Company hereby designates as a Place of Payment for each series
of  Securities  the office or agency of the  Company in the City of Boston,  and
initially  appoints the Trustee at its Corporate Trust Office as Paying Agent in
such  city and as its  agent to  receive  all  such  presentations,  surrenders,
notices and demands.

                  Unless  otherwise  specified  with  respect to any  Securities
pursuant to Section 302, if and so long as the  Securities of any series (i) are
denominated in a Foreign  Currency or (ii) may be payable in a Foreign  Currency
or so long as it is required under any other provision of this  Indenture,  then
the Company will maintain with respect to each such series of Securities,  or as
so required, at least one exchange rate agent.

                  SECTION  1003.  Money for  Securities  Payments  to Be Held in
Trust. If the Company shall at any time act as its own Paying Agent with respect
to any series of any  Securities and any related  coupons,  it will, by no later
than 11:00 am (Boston  time) on each due date of the  principal of (and premium,
if any),  or  interest  on or  Additional  Amounts  in  respect  of,  any of the
Securities  of that series,  segregate  and hold in trust for the benefit of the
Persons entitled  thereto a sum in the currency or currencies,  currency unit or
units or composite currency or currencies in which the Securities of such series
are  payable  (except as  otherwise  specified  pursuant  to Section 301 for the
Securities of such series) sufficient to pay the principal (and premium, if any)
or interest or Additional  Amounts 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 and any related coupons, it will, on or before each due
date of the  principal of (and  premium,  if any),  or interest on or Additional
Amounts in respect of, any  Securities  of that  series,  deposit  with a Paying
Agent a sum (in the currency or currencies,  currency unit or units or composite
currency or currencies described in the preceding  paragraph)  sufficient to pay
the  principal  (and  premium,  if any) or interest or  Additional  Amounts,  so
becoming  due,  such  sum to be held in trust  for the  benefit  of the  Persons
entitled  to such  principal,  premium or  interest  or  Additional  Amounts 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  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)  hold  all  sums  held by it for the  payment  of
         principal of (and  premium,  if any) or interest on Securities in trust
         for the benefit of the Persons  entitled  thereto until such sums shall
         be paid to such Persons or otherwise disposed of as herein provided;

                           (2) give the  Trustee  notice of any  default  by the
         Company (or any other obligor upon the Securities) in the making of any
         such payment of principal (and premium, if any) or interest; and

                                       42
<PAGE>
                           (3) at any time  during the  continuance  of any such
         default, upon the written request of the Trustee,  forthwith pay to the
         Trustee all sums so held in trust by such Paying Agent.

                  The Company may at any time,  for the purpose of obtaining the
satisfaction  and discharge of this Indenture or for any other purpose,  pay, or
by Company Order direct any Paying Agent to pay, to the Trustee all sums held in
trust by the Company or such Paying  Agent,  such sums to be held by the Trustee
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 sums.

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

                  SECTION 1004. Existence. Subject to Article Eight, the Company
will do or cause to be done all things  necessary  to preserve  and keep in full
force  and  effect  its  existence,   rights  (declaration  and  statutory)  and
franchises;  provided,  however,  that the  Company  shall  not be  required  to
preserve  any  right  or  franchise  if  the  Board  shall  determine  that  the
preservation  thereof is no longer  desirable  in the conduct of the business of
the Company.

                  SECTION 1005. Provision of Financial  Information.  Whether or
not the Company is subject to Section 13 or 15(d) of the Securities Exchange Act
of 1934,  as  amended,  the  Company  will,  to the extent  permitted  under the
Securities Exchange Act of 1934, as amended, file with the Commission the annual
reports, quarterly reports and other documents which the Company would have been
required to file with the  Commission  pursuant to such Section 13 or 15(d) (the
"Financial  Statements")  if the Company were so subject,  such  documents to be
filed with the  Commission on or prior to the  respective  dates (the  "Required
Filing  Dates") by which the  Company  would have been  required so to file such
documents if the Company were so subject.

                  The Company  will also in any event (x) within 15 days of each
Required  Filing Date (i)  transmit by mail to all  Holders,  as their names and
addresses appear in the Security  Register,  without cost to such Holders copies
of the annual  reports and  quarterly  reports which the Company would have been
required  to file with the  Commission  pursuant  to  Section 13 or 15(d) of the
Securities Exchange Act of 1934, as amended, if the Company were subject to such
Sections, and (ii) file with the Trustee copies of the annual reports, quarterly
reports and other  documents  which the Company would have been required to file
with the Commission  pursuant to Section 13 or 15(d) of the Securities  Exchange
Act of 1934, as amended, if the Company were subject to such Sections and (y) if
filing such documents by the Company with the Commission is not permitted  under
the Securities  Exchange Act of 1934, as amended,  promptly upon written request
and payment of the reasonable cost of duplication and delivery, supply copies of
such documents to any prospective Holder.

                  SECTION  1006.  Statement as to  Compliance.  The Company will
deliver to the  Trustee,  within 120 days after the end of each fiscal  year,  a
brief  certificate from the principal  executive  officer,  principal  financial
officer  or  principal  accounting  officer  as to his or her  knowledge  of the
Company's compliance with all conditions and covenants under this Indenture and,
in the event of any noncompliance,  specifying such noncompliance and the nature
and status thereof.  For purposes of this Section 1006, such compliance shall be
determined  without regard to any period of grace or requirement of notice under
this Indenture.

                                       43
<PAGE>
                  SECTION  1007.  Additional  Amounts.  If any  Securities  of a
series  provide for the payment of Additional  Amounts,  the Company will pay to
the Holder of any  Security  of such series or any coupon  appertaining  thereto
Additional  Amounts as may be specified as contemplated by Section 301. Whenever
in this  Indenture  there is  mentioned,  in any  context  except in the case of
Section  502(1),  the payment of the principal of or any premium or interest on,
or in respect of, any Security of any series or payment of any related coupon or
the net proceeds received on the sale or exchange of any Security of any series,
such  mention  shall be deemed to include  mention of the payment of  Additional
Amounts provided by the terms of such series established pursuant to Section 301
to the extent that,  in such context,  Additional  Amounts are, were or would be
payable in respect  thereof  pursuant to such terms and  express  mention of the
payment of Additional Amounts (if applicable) in any provisions hereof shall not
be construed as excluding  Additional  Amounts in those provisions  hereof where
such express mention is not made.

                  Except as otherwise  specified as contemplated by Section 301,
if the Securities of a series provide for the payment of Additional  Amounts, at
least 20 days  prior to the first  Interest  Payment  Date with  respect to that
series of Securities (or if the Securities of that series will not bear interest
prior to Maturity, the first day on which a payment of principal and any premium
is made),  and at least 10 days prior to each date of payment of  principal  and
any premium or interest if there has been any change with respect to the matters
set forth in the below-mentioned Officers' Certificate, the Company will furnish
the Trustee and the Company's  principal Paying Agent or Paying Agents, if other
than the Trustee, with an Officers' Certificate instructing the Trustee and such
Paying  Agent or Paying  Agents  whether  such  payment of  principal of and any
premium or interest on the Securities of that series shall be made to Holders of
Securities  of that  series or any  related  coupons  who are not United  States
persons without  withholding  for or on account of any tax,  assessment or other
governmental  charge  described  in the  Securities  of the series.  If any such
withholding shall be required,  then such Officers' Certificate shall specify by
country the  amount,  if any,  required to be withheld on such  payments to such
Holders of Securities of that series or related coupons and the Company will pay
to the Trustee or such Paying Agent the Additional Amounts required by the terms
of such  Securities.  In the event that the Trustee or any Paying Agent,  as the
case may be,  shall not so receive  the  above-mentioned  certificate,  then the
Trustee  or such  Paying  Agent  shall be  entitled  (i) to assume  that no such
withholding or deduction is required with respect to any payment of principal or
interest with respect to any Securities of a series or related  coupons until it
shall  have  received  a  certificate  advising  otherwise  and (ii) to make all
payments of principal and interest with respect to the Securities of a series or
related coupons without  withholding or deductions until otherwise advised.  The
Company covenants to indemnify the Trustee and any Paying Agent for, and to hold
them  harmless  against,  any loss,  liability  or expense  reasonably  incurred
without  negligence  or bad faith on their part arising out of or in  connection
with  actions  taken or omitted by any of them or in reliance  on any  Officers'
Certificate  furnished  pursuant to this Section or in reliance on the Company's
not furnishing such an Officers' Certificate.

                  SECTION  1008.  Waiver of Certain  Covenants.  The Company may
omit in any particular instance to comply with any term,  provision or condition
set  forth  in  Sections  1004 or 1005,  if  before  or after  the time for such
compliance  the  Holders  of at least a  majority  in  principal  amount  of all
outstanding Securities of such series, by Act of such Holders, either waive such
compliance in such instance or generally waive  compliance with such covenant or
condition,  but no such  waiver  shall  extend to or  affect  such  covenant  or
condition except to the extent so expressly waived, and, until such waiver shall
become  effective,  the obligations of the Company and the duties of the Trustee
in respect of any such term,  provision or condition  shall remain in full force
and effect.

                                 ARTICLE ELEVEN

                            REDEMPTION OF SECURITIES

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

                  SECTION  1102.  Election  to Redeem;  Notice to  Trustee.  The
election  of the  Company  to redeem any  Securities  shall be  evidenced  by or
pursuant to a Board Resolution. In case of any redemption at the election of the
Company of less than all of the Securities of any series,  the Company shall, at
least 45 days prior to the giving of the

                                       44
<PAGE>
notice  of  redemption  in  Section  1104  (unless  a  shorter  notice  shall be
satisfactory to the Trustee),  notify the Trustee of such Redemption Date and of
the principal amount of Securities of such series to be redeemed. In the case of
any redemption of Securities  prior to the expiration of any restriction on such
redemption  provided  in the  terms  of such  Securities  or  elsewhere  in this
Indenture,  the Company shall furnish the Trustee with 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 issued on the same day
with the same terms are to be redeemed, the particular Securities to be redeemed
shall be  selected  not more than 60 days  prior to the  Redemption  Date by the
Trustee, from the Outstanding Securities of such series issued on such date with
the same terms not  previously  called  for  redemption,  by such  method as the
Trustee shall deem fair and  appropriate and which may provide for the selection
for redemption of portions  (equal to the minimum  authorized  denomination  for
Securities  of that series or any integral  multiple  thereof) of the  principal
amount of  Securities of such series of a  denomination  larger than the minimum
authorized denomination for Securities of that series.

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

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

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

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

                  All notices of redemption shall state:

                           (1) the Redemption Date,

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

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

                           (4) in case any  Security  is to be  redeemed in part
         only, the notice which relates to such Security shall state that on and
         after the Redemption Date, upon surrender of such Security,  the holder
         will  receive,   without  charge,  a  new  Security  or  Securities  of
         authorized  denominations  for the principal  amount thereof  remaining
         unredeemed,

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

                                       45

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

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

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

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

                           (10)  the CUSIP number of such Security, if any, and

                           (11) if  applicable,  that a Holder of Securities who
         desires  to  convert   Securities  for  redemption   must  satisfy  the
         requirements  for  conversion  contained in such  Securities,  the then
         existing  conversion  price  or rate,  and the  date and time  when the
         option to convert shall expire.

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

                  SECTION  1105.  Deposit of  Redemption  Price.  On or prior to
11:00 am (Boston time) on any  Redemption  Date,  the Company shall deposit with
the  Trustee  or with a Paying  Agent (or,  if the  Company is acting as its own
Paying  Agent,  which it may not do in the case of a sinking fund payment  under
Article  Twelve,  segregate  and hold in trust as provided  in Section  1003) an
amount  of  money  in the  currency  or  currencies,  currency  unit or units or
composite  currency or  currencies  in which the  Securities  of such series are
payable  (except  as  otherwise  specified  pursuant  to  Section  301  for  the
Securities  of  such  series)  sufficient  to  pay on the  Redemption  Date  the
Redemption  Price of, and  (except if the  Redemption  Date shall be an Interest
Payment Date) accrued  interest on, all the Securities or portions thereof 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  in the  currency or  currencies,  currency  unit or units or
composite  currency or  currencies  in which the  Securities  of such series are
payable  (except  as  otherwise  specified  pursuant  to  Section  301  for  the
Securities  of such  series)  (together  with accrued  interest,  if any, to the
Redemption Date), and from and after such date (unless the Company shall default
in the payment of the Redemption  Price and accrued  interest)  such  Securities
shall, if the same were interest-bearing, cease to bear interest and the coupons
for such  interest  appertaining  to any Bearer  Securities  so to be  redeemed,
except to the extent provided  below,  shall be void. Upon surrender of any such
Security  for  redemption  in  accordance  with said notice,  together  with all
coupons, if any,  appertaining  thereto maturing after the Redemption Date, such
Security  shall be paid by the Company at the  Redemption  Price,  together with
accrued  interest,  if any, to the  Redemption  Date;  provided,  however,  that
installments  of interest on Bearer  Securities  whose Stated  Maturity is on or
prior to the  Redemption  Date  shall be  payable  only at an  office  or agency
located outside the United States (except as otherwise provided in Section 1002)
and,  unless  otherwise  specified as  contemplated  by Section  301,  only upon
presentation  and surrender of coupons for such interest;  and provided  further
that, except as otherwise  provided with respect to Securities  convertible into
Common Shares or Preferred  Shares of the Company,  installments  of interest on
Registered  Securities  whose Stated  Maturity is on or prior to the  Redemption
Date  shall  be  payable  to the  Holders  of  such  Securities,  or one or more
Predecessor  Securities,  registered  as such at the  close of  business  on the
relevant  Record Dates  according to their terms and the  provisions  of Section
307.

                                       46
<PAGE>
                  If any Bearer Security surrendered for redemption shall not be
accompanied by all appurtenant  coupons maturing after the Redemption Date, such
Security may be paid after  deducting from the Redemption  Price an amount equal
to the face amount of all such missing coupons, or the surrender of such missing
coupon or  coupons  may be waived by the  Company  and the  Trustee  if there be
furnished to them such security or indemnity as they may require to save each of
them and any Paying Agent  harmless.  If thereafter  the Holder of such Security
shall  surrender to the Trustee or any Paying  Agent any such missing  coupon in
respect of which a  deduction  shall have been made from the  Redemption  Price,
such  Holder  shall be entitled  to receive  the amount so  deducted;  provided,
however, that interest represented by coupons shall be payable only at an office
or agency  located  outside the United States  (except as otherwise  provided in
Section 1002) and,  unless  otherwise  specified as contemplated by Section 301,
only upon presentation and surrender of those coupons.

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

                  SECTION  1107.  Securities  Redeemed in Part.  Any  Registered
Security  which is to be redeemed  only in part  (pursuant to the  provisions of
this Article or of Article  Twelve) shall be  surrendered  at a Place of Payment
therefor (with,  if the Company or the Trustee so requires,  due endorsement by,
or a written  instrument of transfer in form satisfactory to the Company and the
Trustee duly executed by, the Holder thereof or his attorney duly  authorized in
writing) and the Company shall execute and the Trustee  shall  authenticate  and
deliver to the Holder of such Security  without service charge a new Security or
Securities of the same series,  of any authorized  denomination  as requested by
such Holder in  aggregate  principal  amount  equal to and in  exchange  for the
unredeemed portion of the principal of the Security so surrendered.

                                 ARTICLE TWELVE

                                  SINKING FUNDS

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

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

                  SECTION  1202.  Satisfaction  of Sinking  Fund  Payments  with
Securities. The Company may, in satisfaction of all or any part of any mandatory
sinking fund payment with  respect to the  Securities  of a series,  (1) deliver
Outstanding  Securities  of such series  (other than any  previously  called for
redemption)  together in the case of any Bearer  Securities  of such series with
all unmatured coupons  appertaining thereto and (2) apply as a credit Securities
of such series  which have been  redeemed  either at the election of the Company
pursuant to the terms of such Securities or through the application of permitted
optional  sinking fund  payments  pursuant to the terms of such  Securities,  as
provided  for by the terms of such  Securities,  or which  have  otherwise  been
acquired by the Company;  provided that such  Securities so delivered or applied
as a credit have not been  previously  so  credited.  Such  Securities  shall be
received  and  credited  for  such  purpose  by the  Trustee  at the  applicable
Redemption Price specified in such Securities for redemption  through  operation
of the sinking fund and the amount of such mandatory  sinking fund payment shall
be reduced accordingly.

                  SECTION 1203.  Redemption of Securities  for Sinking Fund. Not
less than 60 days prior to each sinking fund payment date for  Securities of any
series,  the  Company  will  deliver  to the  Trustee an  Officers'  Certificate
specifying  the amount of the next  ensuing  mandatory  sinking fund payment for
that series pursuant to the terms of that

                                       47
<PAGE>
series, the portion thereof, if any, which is to be satisfied by payment of cash
in the currency or currencies,  currency unit or units or composite  currency or
currencies  in which the  Securities  of such  series  are  payable  (except  as
otherwise  specified  pursuant to Section 301 for the Securities of such series)
and the portion  thereof,  if any,  which is to be satisfied by  delivering  and
crediting  Securities of that series  pursuant to Section 1202, and the optional
amount,  if any, to be added in cash to the next ensuing  mandatory sinking fund
payment,  and will also deliver to the Trustee any Securities to be so delivered
and credited.  If such Officers' Certificate shall specify an optional amount to
be added in cash to the next ensuing mandatory sinking fund payment, the Company
shall thereupon be obligated to pay the amount therein specified.  Not less than
30 days before each such sinking fund payment date the Trustee  shall select the
Securities  to be redeemed  upon such  sinking  fund  payment date in the manner
specified in Section 1103 and cause notice of the redemption thereof to be given
in the name of and at the  expense  of the  Company in the  manner  provided  in
Section  1104.  Such  notice  having  been duly given,  the  redemption  of such
Securities  shall be made upon the terms and in the  manner  stated in  Sections
1106 and 1107.

                                ARTICLE THIRTEEN

                       REPAYMENT AT THE OPTION OF HOLDERS

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

                  SECTION  1302.  Repayment  of  Securities.  Securities  of any
series  subject to  repayment  in whole or in part at the option of the  Holders
thereof will,  unless  otherwise  provided in the terms of such  Securities,  be
repaid at a price equal to the principal amount thereof, together with interest,
if any,  thereon  accrued to the Repayment  Date specified in or pursuant to the
terms of such Securities.  The Company covenants that on or before the Repayment
Date it will 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 in the currency or currencies, currency unit or
units or composite currency or currencies in which the Securities of such series
are  payable  (except as  otherwise  specified  pursuant  to Section 301 for the
Securities of such series)  sufficient to pay the principal  (or, if so provided
by the terms of the Securities of any series, a percentage of the principal) of,
and (except if the  Repayment  Date shall be an Interest  Payment  Date) accrued
interest on, all the Securities or portions  thereof,  as the case may be, to be
repaid on such date.

                  SECTION  1303.  Exercise of Option.  Securities  of any series
subject  to  repayment  at the option of the  Holders  thereof  will  contain an
"Option to Elect Repayment" form on the reverse of such Securities. In order for
any Security to be repaid at the option of the Holder,  the Trustee must receive
at the Place of Payment therefor  specified in the terms of such Security (or at
such other place or places of which the  Company  shall from time to time notify
the Holders of such  Securities) not earlier than 60 days nor later than 30 days
prior to the  Repayment  Date (1) the Security so providing  for such  repayment
together with the "Option to Elect  Repayment"  form on the reverse thereof duly
completed by the Holder or by the Holder's  attorney duly  authorized in writing
or (2) a telegram,  telex, facsimile transmission or a letter from a member of a
national securities exchange, or the National Association of Securities Dealers,
Inc.  ("NASD"),  or a  commercial  bank or trust  company in the  United  States
setting  forth the name of the Holder of the Security,  the principal  amount of
the  Security,  the  principal  amount of the  Security to be repaid,  the CUSIP
number,  if any,  or a  description  of the tenor and terms of the  Security,  a
statement that the option to elect  repayment is being  exercised  thereby and a
guarantee that the Security to be repaid,  together with the duly completed form
entitled  "Option to Elect  Repayment" on the reverse of the  Security,  will be
received by the Trustee not later than the fifth  Business Day after the date of
such telegram, telex, facsimile transmission or letter; provided,  however, that
such telegram,  telex,  facsimile transmission or letter shall only be effective
if such  Security  and form duly  completed  are received by the Trustee by such
fifth Business Day. If less than the entire principal amount of such Security is
to be repaid in accordance with the terms of such Security, the principal amount
of such Security to be repaid,  in increments  of the minimum  denomination  for
Securities of such series, and the denomination or denominations of the Security
or Securities to be issued to the Holder for the portion of the principal amount
of such Security  surrendered that is not to be repaid,  must be specified.  The
principal  amount of any security  providing  for repayment at the option of the
Holder

                                       48
<PAGE>
thereof  may not be repaid in part if,  following  such  repayment,  the  unpaid
principal  amount of such  Security  would be less than the  minimum  authorized
denomination  of Securities of the series of which such Security to be repaid is
a part.  Except  as  otherwise  may be  provided  by the  terms of any  Security
providing  for  repayment at the option of the Holder  thereof,  exercise of the
repayment  option  by the  Holder  shall be  irrevocable  unless  waived  by the
Company.

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

                  If any Bearer Security  surrendered for repayment shall not be
accompanied by all appurtenant  coupons  maturing after the Repayment Date, such
Security  may be paid  after  deducting  from the  amount  payable  therefor  as
provided in Section  1302 an amount equal to the face amount of all such missing
coupons, or the surrender of such missing coupon or coupons may be waived by the
Company and the Trustee if there be furnished to them such security or indemnity
as they may  require  to save each of them and any  Paying  Agent  harmless.  If
thereafter  the Holder of such  Security  shall  surrender to the Trustee or any
Paying Agent any such missing coupon in respect of which a deduction  shall have
been made as provided in the preceding  sentence,  such Holder shall be entitled
to receive the amount so deducted;  provided, however, that interest represented
by coupons  shall be payable  only at an office or agency  located  outside  the
United  States  (except  as  otherwise  provided  in Section  1002) and,  unless
otherwise  specified as contemplated by Section 301, only upon  presentation and
surrender of those coupons.

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

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

                                ARTICLE FOURTEEN

                       DEFEASANCE AND COVENANT DEFEASANCE

                  SECTION 1401.  Applicability  of Article;  Company's Option to
Effect Defeasance or Covenant Defeasance. If, pursuant to Section 301, provision
is made for either or both of (a)  defeasance  of the  Securities of or within a
series under  Section 1402 or (b) covenant  defeasance  of the  Securities of or
within a series under Section 1403,

                                       49
<PAGE>
then the  provisions of such Section or Sections,  as the case may be,  together
with the other  provisions of this Article (with such  modifications  thereto as
may be specified pursuant to Section 301 with respect to any Securities),  shall
be applicable to such Securities and any coupons  appertaining  thereto, and the
Company may at its option by Board Resolution, at any time, with respect to such
Securities and any coupons appertaining thereto,  elect to have Section 1402 (if
applicable)  or Section  1403 (if  applicable)  be  applied to such  Outstanding
Securities  and any  coupons  appertaining  thereto  upon  compliance  with  the
conditions set forth below in this Article.

                  SECTION 1402.  Defeasance  and  Discharge.  Upon the Company's
exercise of the above  option  applicable  to this  Section  with respect to any
Securities  of or  within a  series,  the  Company  shall be deemed to have been
discharged from its obligations with respect to such Outstanding  Securities and
any coupons appertaining thereto on the date the conditions set forth in Section
1404  are  satisfied  (hereinafter,   "defeasance").   For  this  purpose,  such
defeasance  means that the Company  shall be deemed to have paid and  discharged
the entire  indebtedness  represented  by such  Outstanding  Securities  and any
coupons   appertaining   thereto,   which  shall  thereafter  be  deemed  to  be
"Outstanding"  only for the purposes of Section  1405 and the other  Sections of
this Indenture  referred to in clauses (A) and (B) below,  and to have satisfied
all of its other obligations under such Securities and any coupons  appertaining
thereto  and  this  Indenture   insofar  as  such  Securities  and  any  coupons
appertaining  thereto  are  concerned  (and the  Trustee,  at the expense of the
Company,  shall execute proper instruments  acknowledging the same),  except for
the  following  which shall  survive  until  otherwise  terminated or discharged
hereunder:  (A) the  rights of Holders of such  Outstanding  Securities  and any
coupons appertaining thereto to receive, solely from the trust fund described in
Section 1404 and as more fully set forth in such Section, payments in respect of
the principal of (and premium, if any) and interest,  if any, on such Securities
and any  coupons  appertaining  thereto  when  such  payments  are due,  (B) the
Company's  obligations  with respect to such Securities under Sections 305, 306,
1002 and 1003 and with respect to the payment of Additional  Amounts, if any, on
such Securities as contemplated by Section 1007, (C) the rights, powers, trusts,
duties and  immunities of the Trustee  hereunder and (D) this Article  Fourteen.
Subject to compliance with this Article  Fourteen,  the Company may exercise its
option under this Section notwithstanding the prior exercise of its option under
Section  1403 with  respect  to such  Securities  and any  coupons  appertaining
thereto.

                  SECTION 1403. Covenant Defeasance. Upon the Company's exercise
of the above option applicable to this Section with respect to any Securities of
or within a series,  the Company  shall be released from its  obligations  under
Sections  1004  and  1005  and,  if  specified  pursuant  to  Section  301,  its
obligations  under  any  other  covenant,   with  respect  to  such  Outstanding
Securities  and any  coupons  appertaining  thereto  on and  after  the date the
conditions  set forth in  Section  1404 are  satisfied  (hereinafter,  "covenant
defeasance"),  and such  Securities and any coupons  appertaining  thereto shall
thereafter be deemed to be not  "Outstanding" for the purposes of any direction,
waiver,  consent or declaration or Act of Holders (and the  consequences  of any
thereof) in connection with Sections 1004 and 1005 or such other  covenant,  but
shall continue to be deemed "Outstanding" for all other purposes hereunder.  For
this  purpose,  such  covenant  defeasance  means  that,  with  respect  to such
Outstanding  Securities and any coupons  appertaining  thereto,  the Company may
omit to  comply  with and  shall  have no  liability  in  respect  of any  term,
condition or  limitation  set forth in any such Section or such other  covenant,
whether directly or indirectly,  by reason of any reference  elsewhere herein to
any such  Section or such other  covenant or by reason of  reference in any such
Section or such other  covenant  to any other  provision  herein or in any other
document and such omission to comply shall not  constitute a default or an Event
of Default under Section 501(4) or 501(9) or otherwise,  as the case may be, but
except as specified  above,  the remainder of this Indenture and such Securities
and any coupons appertaining thereto shall be unaffected thereby.

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

                           (a) The Company shall  irrevocably  have deposited or
         caused to be deposited with the Trustee (or another trustee  satisfying
         the  requirements  of Section  607 who shall  agree to comply  with the
         provisions of this Article Fourteen applicable to it) as trust funds in
         trust for the purpose of making the  following  payments,  specifically
         pledged as security  for, and  dedicated  solely to, the benefit of the
         Holders of such Securities and any coupons appertaining thereto, (1) an
         amount in such  currency,  currencies  or  currency  unit in which such
         Securities and any coupons  appertaining  thereto are then specified as
         payable at Stated
                                       50
<PAGE>
         Maturity) which through the scheduled payment of principal and interest
         in respect  thereof in accordance  with their terms will  provide,  not
         later than one day before the due date of any payment of  principal  of
         (and premium, if any) and interest,  if any, on such Securities and any
         coupons appertaining thereto, or (2) Government  Obligations applicable
         to such Securities and coupons  appertaining thereto (determined on the
         basis of the  currency,  currencies  or  currency  unit in  which  such
         Securities  and  coupons  appertaining  thereto are then  specified  as
         payable at Stated  Maturity)  which  through the  scheduled  payment of
         principal  and  interest in respect  thereof in  accordance  with their
         terms will  provide,  not later than one day before the due date of any
         payment of principal of (and premium, if any) and interest,  if any, on
         such  Securities  and any  coupons  appertaining  thereto,  money in an
         amount, or (3) a combination thereof in an amount,  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 other  qualifying  trustee) to pay and  discharge,  (i) the
         principal  of (and  premium,  if any)  and  interest,  if any,  on such
         Outstanding  Securities  and any  coupons  appertaining  thereto on the
         Stated  Maturity of such  principal  or  installment  of  principal  or
         interest  and (ii) any  mandatory  sinking  fund  payments or analogous
         payments  applicable  to such  Outstanding  Securities  and any coupons
         appertaining  thereto  on the day on which  such  payments  are due and
         payable  in  accordance  with the terms of this  Indenture  and of such
         Securities and any coupons appertaining thereto.

                           (b) Such defeasance or covenant  defeasance shall not
         result in a breach or violation of, or constitute a default under, this
         Indenture or any other  material  agreement or  instrument to which the
         Company is a party or by which it is bound.

                           (c) No Event of Default or event which with notice or
         lapse of time or both would  become an Event of Default with respect to
         such  Securities  and  any  coupons  appertaining  thereto  shall  have
         occurred and be continuing  on the date of such deposit or,  insofar as
         Sections 501(6) and 501(7) are concerned, at any time during the period
         ending  on the  91st  day  after  the date of such  deposit  (it  being
         understood that this condition shall not be deemed  satisfied until the
         expiration of such period).

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

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

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

                                       51
<PAGE>
                           (g)  Notwithstanding  any  other  provisions  of this
         Section,  such defeasance or covenant  defeasance  shall be effected in
         compliance  with any  additional  or  substitute  terms,  conditions or
         limitations which may be imposed on the Company in connection therewith
         pursuant to Section 301.

                  SECTION 1405. Deposited Money and Government Obligations to Be
Held in Trust; Other Miscellaneous Provisions.  Subject to the provisions of the
last paragraph of Section 1003, all money and Government  Obligations  (or other
property as may be provided  pursuant to Section  301)  (including  the proceeds
thereof) deposited with the Trustee (or other qualifying  trustee,  collectively
for purposes of this Section 1405,  the  "Trustee")  pursuant to Section 1404 in
respect of any Outstanding Securities of any series and any coupons appertaining
thereto shall be held in trust and applied by the Trustee,  in  accordance  with
the provisions of such Securities and any coupons  appertaining thereto and this
Indenture,  to  the  payment,  either  directly  or  through  any  Paying  Agent
(including  the  Company  acting as its own  Paying  Agent) as the  Trustee  may
determine,  to the  Holders  of such  Securities  and any  coupons  appertaining
thereto of all sums due and to become due thereon in respect of  principal  (and
premium,  if any) and interest and  Additional  Amounts,  if any, but such money
need not be segregated from other funds except to the extent required by law.

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

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

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

                                 ARTICLE FIFTEEN

                        MEETINGS OF HOLDERS OF SECURITIES

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

                                       52
<PAGE>
                  SECTION  1502.  Call,  Notice and Place of  Meetings.  (a) The
Trustee  may at any time call a meeting of Holders of  Securities  of any series
for any purpose  specified in Section  1501, to be held at such time and at such
place in the City of Boston, or in London as the Trustee shall determine. Notice
of every meeting of Holders of Securities of any series,  setting forth the time
and the place of such  meeting  and in general  terms the action  proposed to be
taken at such meeting,  shall be given,  in the manner  provided in Section 106,
not less than 21 nor more than 180 days prior to the date fixed for the meeting.

                  (b) In case  at any  time  the  Company,  pursuant  to a Board
Resolution,  or  the  Holders  of at  least  25%  in  principal  amount  of  the
Outstanding  Securities of any series shall have requested the Trustee to call a
meeting of the Holders of Securities of such series for any purpose specified in
Section 1501, by written request  setting forth in reasonable  detail the action
proposed to be taken at the  meeting,  and the  Trustee  shall not have made the
first  publication of the notice of such meeting within 21 days after receipt of
such request or shall not thereafter  proceed to cause the meeting to be held as
provided herein, then the Company or the Holders of Securities of such series in
the amount above  specified,  as the case may be, may determine the time and the
place in the City of  Boston,  or in London for such  meeting  and may call such
meeting for such purposes by giving notice thereof as provided in subsection (a)
of this Section.

                  SECTION  1503.  Persons  Entitled to Vote at  Meetings.  To be
entitled to vote at any meeting of Holders of Securities of any series, a Person
shall be (1) a Holder of one or more Outstanding  Securities of such series,  or
(2) a Person  appointed  by an  instrument  in  writing as proxy for a Holder or
Holders of one or more  Outstanding  Securities of such series by such Holder or
Holders. The only Persons who shall be entitled to be present or to speak at any
meeting of Holders of Securities of any series shall be the Persons  entitled to
vote at such meeting and their counsel,  any  representatives of the Trustee and
its counsel and any representatives of the Company and its counsel.

                  SECTION 1504.  Quorum;  Action. The Persons entitled to vote a
majority in principal  amount of the  Outstanding  Securities  of a series shall
constitute  a quorum  for a meeting of Holders  of  Securities  of such  series;
provided,  however,  that if any  action  is to be  taken at such  meeting  with
respect to a consent or waiver which this  Indenture  expressly  provides may be
given by the Holders of not less than a specified percentage in principal amount
of the  Outstanding  Securities of a series,  the Persons  entitled to vote such
specified  percentage in principal amount of the Outstanding  Securities of such
series shall  constitute a quorum.  In the absence of a quorum within 30 minutes
after the time appointed for any such meeting, the meeting shall, if convened at
the request of Holders of Securities of such series, be dissolved.  In any other
case  the  meeting  may be  adjourned  for a  period  of not  less  than 10 days
determined  by the  chairman of the  meeting  prior to the  adjournment  of such
meeting.  In the  absence  of a  quorum  at any  such  adjourned  meeting,  such
adjourned meeting may be further adjourned for a period of not less than 10 days
as determined by the chairman of the meeting  prior to the  adjournment  of such
adjourned  meeting.  Notice of the reconvening of any adjourned meeting shall be
given as provided in Section 1502(a), except that such notice need be given only
once not less than five days prior to the date on which the meeting is scheduled
to be reconvened. Notice of the reconvening of any adjourned meeting shall state
expressly the  percentage,  as provided  above,  of the principal  amount of the
Outstanding Securities of such series which shall constitute a quorum.

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

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

                                       53
<PAGE>
                  Notwithstanding the foregoing provisions of this Section 1504,
if any action is to be taken at a meeting of Holders of Securities of any series
with respect to any request, demand, authorization,  direction, notice, consent,
waiver or other action that this Indenture expressly provides may be made, given
or taken by the Holders of a specified  percentage  in  principal  amount of all
Outstanding  Securities  affected thereby,  or of the Holders of such series and
one or more additional series:

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

                           (ii)  the   principal   amount  of  the   Outstanding
         Securities of such series that vote in favor of such  request,  demand,
         authorization, direction, notice, consent, waiver or other action shall
         be taken into  account in  determining  whether such  request,  demand,
         authorization,  direction,  notice, consent, waiver or other action has
         been made, given or taken under this Indenture.

                  SECTION  1505.  Determination  of Voting  Rights;  Conduct and
Adjournment of Meetings.  (a)  Notwithstanding any provisions of this Indenture,
the Trustee may make such  reasonable  regulations  as it may deem advisable for
any  meeting  of  Holders  of  Securities  of a series in regard to proof of the
holding of  Securities of such series and of the  appointment  of proxies and in
regard to the appointment and duties of inspectors of votes,  the submission and
examination  of proxies,  certificates  and other evidence of the right to vote,
and such other  matters  concerning  the conduct of the meeting as it shall deem
appropriate.  Except as otherwise permitted or required by any such regulations,
the holding of Securities shall be proved in the manner specified in Section 104
and the  appointment  of any proxy  shall be proved in the manner  specified  in
Section  104 or by  having  the  signature  of the  Person  executing  the proxy
witnessed or  guaranteed  by any trust  company,  bank or banker  authorized  by
Section 104 to certify to the holding of Bearer Securities. Such regulations may
provide that written instruments appointing proxies,  regular on their face, may
be presumed  valid and genuine  without  the proof  specified  in Section 104 or
other proof.

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

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

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

                  SECTION 1506. Counting Votes and Recording Action of Meetings.
The vote upon any  resolution  submitted to any meeting of Holders of Securities
of any series  shall be by  written  ballots on which  shall be  subscribed  the
signatures   of  the  Holders  of   Securities   of  such  series  or  of  their
representatives  by proxy and the  principal  amounts and serial  numbers of the
Outstanding Securities of such series held or represented by them. The permanent
chairman of the meeting  shall  appoint two  inspectors of votes who shall count
all votes cast at the meeting for or against any  resolution  and who shall make
and file with the secretary of the meeting  their  verified  written  reports in
duplicate of all votes cast at the meeting. A record, at least in duplicate,  of
the  proceedings of each meeting of Holders of Securities of any Series shall be
prepared  by the  secretary  of the  meeting and there shall be attached to said
record the  original  reports of the  inspectors  of votes on any vote by ballot
taken  thereat and  affidavits  by one or more persons  having  knowledge of the
fact,  setting  forth a copy of the notice of the meeting and showing  that said
notice was given as

                                       54
<PAGE>
provided in Section 1502 and, if  applicable,  Section 1504.  Each copy shall be
signed and verified by the affidavits of the permanent chairman and secretary of
the meeting and one such copy shall be  delivered  to the Company and another to
the Trustee to be preserved by the Trustee,  the latter to have attached thereto
the ballots  voted at the meeting.  Any record so signed and  verified  shall be
conclusive evidence of the matters therein stated.

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

                  IN WITNESS  WHEREOF,  the  parties  hereto  have  caused  this
Indenture to be duly  executed,  as an instrument  under seal, all as of the day
and year first above written.

                          HOSPITALITY PROPERTIES TRUST


                         By:___________________________
                                     Title:





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


                         By:___________________________
                                     Title:






                                       55

<PAGE>



                                    EXHIBIT A

                             FORMS OF CERTIFICATION


                                   EXHIBIT A-1

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


[Insert title or sufficient description of Securities to be delivered]

                  This is to certify that, as of the date hereof,  and except as
set forth below, the above-captioned  Securities held by you for our account (i)
are owned by person(s)  that are not citizens or residents of the United States,
domestic  partnerships,  domestic corporations or any estate or trust the income
of which is subject to United States federal income  taxation  regardless of its
source ("United States  person(s)"),  (ii) are owned by United States  person(s)
that are (a) foreign branches of United States financial institutions (financial
institutions,   as  defined  in  United  States  Treasury   Regulations  Section
2.165-12(c)(1)(v) are herein referred to as "financial institutions") purchasing
for their own account or for resale, or (b) United States person(s) who acquired
the Securities through foreign branches of United States financial  institutions
and who hold the Securities through such United States financial institutions on
the  date  hereof  (and in  either  case (a) or (b),  each  such  United  States
financial  institutions  hereby agrees,  on its own behalf or through its agent,
that you may advise Health and Rehabilitation Properties Trust or its agent that
such  financial  institutions  will  comply  with the  requirements  of  Section
165(j)(3)(A),  (B) or (C) of the United States Internal Revenue Code of 1986, as
amended, and the regulations thereunder), or (iii) are owned by United States or
foreign  financial  institution(s)  for purposes of resale during the restricted
period  (as  defined  in  United  States  Treasury  Regulations  Section  1.163-
5(c)(1)(i)(D)(7),  and, in addition,  if the owner is a United States or foreign
financial  institutions  described  in clause  (iii) above  (whether or not also
described in clause (i) or (ii)), this is to further certify that such financial
institutions  has not acquired the Securities for purposes of resale directly or
indirectly  to a United States person or to a person within the United States or
its possessions.

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

                  We  undertake  to advise you  promptly  by tested  telex on or
prior to the date on which you intend to submit your  certification  relating to
the  above-captioned  Securities  held by you for our account in accordance with
your Operating  Procedures if any applicable  statement herein is not correct on
such date,  and in the absence of any such  notification  it may be assumed that
this certification applies as of such date.

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

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


Dated:                   , 19

                                       A-1

<PAGE>



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

                                         [Name of Person Making Certification]


                                                             (Authorized
                                         Signatory)
                                         Name:
                                         Title:



                                       A-2

<PAGE>



                                   EXHIBIT A-2

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

                                   CERTIFICATE

[Insert title or sufficient description of Securities to be delivered]

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

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

                  We  further  certify  that  (i) we are  not  making  available
herewith for exchange (or, if relevant,  collection of any interest) any portion
of the temporary  global Security  representing the  above-captioned  Securities
excepted in the  above-referenced  certificates of Member Organizations and (ii)
as of the date  hereof we have not  received  any  notification  from any of our
Member  Organizations  to the effect  that the  statements  made by such  Member
Organizations  with  respect to any portion of the part  submitted  herewith for
exchange  (or, if relevant,  collection  of any interest) are no longer true and
cannot be relied upon as of the date hereof.

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


Date:                19

[To be dated no  earlier  than
the   Exchange   Date  or  the
relevant Interest Payment Date
occurring    prior    to   the
Exchange Date, as applicable]

                                             [Morgan Guaranty Trust Company
                                               New York, Brussels Office,]

                                       A-3

<PAGE>


                                           as Operator of the Euroclear System
                                           [Cedel S.A.]


                                       A-4



                                                                     EXHIBIT 4.2

                          HOSPITALITY PROPERTIES TRUST

                                       TO

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

                                     Trustee




                                    Indenture

                          Dated as of __________, 199_



                             Subordinated Debt Securities




<PAGE>

<TABLE>
<CAPTION>

                                             TABLE OF CONTENTS1

                                                                                                       PAGE
<S>             <C>                                                                                    <C>

PARTIES..................................................................................................1

RECITALS.................................................................................................1


                                                ARTICLE ONE

                          DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION

SECTION 101.  Definitions................................................................................1
                  "Act"    ..............................................................................1
                  "Additional Amounts"...................................................................2
                  "Affiliate"............................................................................2
                  "Authenticating Agent".................................................................2
                  "Authorized Newspaper".................................................................2
                  "Bankruptcy Law".......................................................................2
                  "Bearer Security"......................................................................2
                  "Board"  ..............................................................................2
                  "Board Resolution".....................................................................2
                  "Business Day".........................................................................2
                  "CEDEL"  ..............................................................................2
                  "Commission"...........................................................................2
                  "Common Depositary"....................................................................2
                  "Company"..............................................................................2
                  "Company Request" and "Company Order"..................................................2
                  "Conversion Event".....................................................................3
                  "Corporate Trust Office"...............................................................3
                  "corporation"..........................................................................3
                  "coupon" ..............................................................................3
                  "Custodian"............................................................................3
                  "Declaration"..........................................................................3
                  "Defaulted Interest"...................................................................3
                  "Dollar" or "$"........................................................................3
                  "DTC"    ..............................................................................3
                  "ECU"    ..............................................................................3
                  "Euroclear"............................................................................3
                  "European Communities".................................................................3
                  "European Monetary System".............................................................3
                  "Event of Default".....................................................................3
                  "Exchange Date"........................................................................3
                  "Foreign Currency".....................................................................3
                  "Funds from Operations"................................................................3
                  "GAAP"   ..............................................................................3
                  "Government Obligations"...............................................................4
                  "Holder" ..............................................................................4
                  "Indenture"............................................................................4
                  "Indexed Security".....................................................................4
- --------
1        This Table of Contents shall not, for any purpose, be deemed to be part of this Indenture.

                                                        

<PAGE>



                  "interest".............................................................................4
                  "Interest Payment Date"................................................................4
                  "Maturity".............................................................................4
                  "Officers' Certificate"................................................................4
                  "Opinion of Counsel"...................................................................4
                  "Original Issue Discount Security".....................................................4
                  "Outstanding"..........................................................................5
                  "Paying Agent".........................................................................5
                  "Person" ..............................................................................5
                  "Place of Payment".....................................................................6
                  "Predecessor Security".................................................................6
                  "Redemption Date"......................................................................6
                  "Redemption Price".....................................................................6
                  "Registered Security"..................................................................6
                  "Regular Record Date"..................................................................6
                  "Repayment Date".......................................................................6
                  "Responsible Officer"..................................................................6
                  "Security".............................................................................6
                  "Security Register" and "Security Registrar"...........................................6
                  "Significant Subsidiary"...............................................................6
                  "Special Record Date"..................................................................6
                  "Stated Maturity"......................................................................7
                  "Subsidiary"...........................................................................7
                  "Trust Indenture Act" or "TIA".........................................................7
                  "Trustee"..............................................................................7
                  "United States"........................................................................7
                  "United States person".................................................................7
                  "Yield to Maturity"....................................................................7
SECTION 102.  Compliance Certificates and Opinions.......................................................7
SECTION 103.  Form of Documents Delivered to Trustee.....................................................8
SECTION 104.  Acts of Holders............................................................................8
SECTION 105.  Notices, etc., to Trustee and Company......................................................9
SECTION 106.  Notice to Holders; Waiver..................................................................9
SECTION 107.  Effect of Headings and Table of Contents..................................................10
SECTION 108.  Successors and Assigns....................................................................10
SECTION 109.  Separability Clause.......................................................................10
SECTION 110.  Benefits of Indenture.....................................................................10
SECTION 111.  Governing Law.............................................................................10
SECTION 112.  Legal Holidays............................................................................10
SECTION 113.  No Personal Liability.....................................................................11

                                                ARTICLE TWO

                                              SECURITIES FORMS

SECTION 201.  Forms of Securities.......................................................................11
SECTION 202.  Form of Trustee's Certificate of Authentication...........................................11
SECTION 203.  Securities Issuable in Global Form........................................................12

                                               ARTICLE THREE

                                               THE SECURITIES


                                                    -ii-

<PAGE>



 SECTION 301.  Amount Unlimited; Issuable in Series......................................................12
 SECTION 302.  Denominations.............................................................................15
 SECTION 303.  Execution, Authentication, Delivery and Dating............................................15
 SECTION 304.  Temporary Securities......................................................................17
 SECTION 305.  Registration, Registration of Transfer and Exchange.......................................18
 SECTION 306.  Mutilated, Destroyed, Lost and Stolen Securities..........................................21
 SECTION 307.  Payment of Interest; Interest Rights Preserved............................................21
 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 Funds................................................................25

                                                ARTICLE FIVE

                                                  REMEDIES

 SECTION 501.  Events of Default.........................................................................25
 SECTION 502.  Acceleration of Maturity; Rescission and Annulment........................................26
 SECTION 503.  Collection of Indebtedness and Suits for Enforcement by Trustee...........................27
 SECTION 504.  Trustee May File Proofs of Claim..........................................................28
 SECTION 505.  Trustee May Enforce Claims Without Possession of Securities or Coupons....................28
 SECTION 506.  Application of Money Collected............................................................29
 SECTION 507.  Limitation on Suits.......................................................................29
 SECTION 508.  Unconditional Right of Holders to Receive Principal, Premium, if any, Interest
                     and Additional Amounts..............................................................29
 SECTION 509.  Restoration of Rights and Remedies........................................................30
 SECTION 510.  Rights and Remedies Cumulative............................................................30
 SECTION 511.  Delay or Omission Not Waiver..............................................................30
 SECTION 512.  Control by Holders of Securities..........................................................30
 SECTION 513.  Waiver of Past Defaults...................................................................30
 SECTION 514.  Waiver of Usury, Stay or Extension Laws...................................................30
 SECTION 515.  Undertaking for Costs.....................................................................31

                                                ARTICLE SIX

                                                THE TRUSTEE

 SECTION 601.  Notice of Defaults........................................................................31
 SECTION 602.  Certain Rights of Trustee.................................................................31
 SECTION 603.  Not Responsible for Recitals or Issuance of Securities....................................32
 SECTION 604.  May Hold Securities.......................................................................32
 SECTION 605.  Money Held in Trust.......................................................................32
 SECTION 606.  Compensation and Reimbursement............................................................32
 SECTION 607.  Corporate Trustee Required; Eligibility; Conflicting Interests............................33
 SECTION 608.  Resignation and Removal; Appointment of Successor.........................................33
 SECTION 609.  Acceptance of Appointment by Successor....................................................34
 SECTION 610.  Merger, Conversion, Consolidation or Succession to Business...............................35

                                                   -iii-

<PAGE>



SECTION 611.  Appointment of Authentication Agent.......................................................35

                                               ARTICLE SEVEN

                             HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY

SECTION 701.  Disclosure of Names and Addresses of Holders..............................................36
SECTION 702.  Reports by Trustee........................................................................37
SECTION 703.  Reports by Company........................................................................37
SECTION 704.  Company to Furnish to Trustee Names and Addresses of Holders..............................37

                                               ARTICLE EIGHT

                              CONSOLIDATION, MERGER, SALE, LEASE OR CONVEYANCE

SECTION 801.  Consolidations and Mergers of Company and Sales, Leases and Conveyances Permitted
                  Subject
                   to Certain Conditions................................................................37
SECTION 802.  Rights and Duties of Successor Corporation................................................38
SECTION 803.  Officers' Certificate and Opinion of Counsel..............................................38

                                                ARTICLE NINE

                                          SUPPLEMENTAL INDENTURES

SECTION 901.  Supplemental Indentures Without Consent of Holders........................................38
SECTION 902.  Supplemental Indentures with Consent of Holders...........................................39
SECTION 903.  Execution of Supplemental Indentures......................................................40
SECTION 904.  Effect of Supplemental Indentures.........................................................40
SECTION 905.  Conformity with Trust Indenture Act.......................................................40
SECTION 906.  Reference in Securities to Supplemental Indentures........................................40

                                                ARTICLE TEN

                                                 COVENANTS

SECTION 1001.  Payment of Principal, Premium, if any, Interest and Additional Amounts...................41
SECTION 1002.  Maintenance of Office or Agency..........................................................41
SECTION 1003.  Money for Securities Payments to Be Held in Trust........................................42
SECTION 1004.  Existence................................................................................43
SECTION 1005.  Provision of Financial Information.......................................................43
SECTION 1006.  Statement as to Compliance...............................................................43
SECTION 1007.  Additional Amounts.......................................................................44
SECTION 1008.  Waiver of Certain Covenants..............................................................44

                                               ARTICLE ELEVEN

                                          REDEMPTION OF SECURITIES

SECTION 1101.  Applicability of Article.................................................................44
SECTION 1102.  Election to Redeem; Notice to Trustee....................................................44
SECTION 1103.  Selection by Trustee of Securities to Be Redeemed........................................45
SECTION 1104.  Notice of Redemption.....................................................................45

                                                    -iv-

<PAGE>



SECTION 1105.  Deposit of Redemption Price..............................................................46
SECTION 1106.  Securities Payable on Redemption Date....................................................46
SECTION 1107.  Securities Redeemed in Part..............................................................47

                                               ARTICLE TWELVE

                                               SINKING FUNDS

SECTION 1201.  Applicability of Article.................................................................47
SECTION 1202.  Satisfaction of Sinking Fund Payments with Securities....................................47
SECTION 1203.  Redemption of Securities for Sinking Fund................................................47

                                              ARTICLE THIRTEEN

                                     REPAYMENT AT THE OPTION OF HOLDERS

SECTION  1301.  Applicability of Article................................................................48
SECTION 1302.  Repayment of Securities..................................................................48
SECTION 1303.  Exercise of Option.......................................................................48
SECTION 1304.  When Securities Presented for Repayment Become Due and Payable...........................49
SECTION 1305.  Securities Repaid in Part................................................................49

                                              ARTICLE FOURTEEN

                                     DEFEASANCE AND COVENANT DEFEASANCE

SECTION 1401.  Applicability of Article; Company's Option to Effect Defeasance or Covenant
                  Defeasance............................................................................49
SECTION 1402.  Defeasance and Discharge.................................................................50
SECTION 1403.  Covenant Defeasance......................................................................50
SECTION 1404.  Conditions to Defeasance or Covenant Defeasance..........................................50
SECTION 1405.  Deposited Money and Government Obligations to Be Held in Trust; Other
                  Miscellaneous Provisions..............................................................52

                                              ARTICLE FIFTEEN

                                     MEETINGS OF HOLDERS OF SECURITIES

SECTION 1501.  Purposes for Which Meetings May Be Called................................................52
SECTION 1502.  Call, Notice and Place of Meetings.......................................................53
SECTION 1503.  Persons Entitled to Vote at Meetings.....................................................53
SECTION 1504.  Quorum; Action...........................................................................53
SECTION 1505. Determination of Voting Rights; Conduct and Adjournment of Meetings.......................54
SECTION 1506.  Counting Votes and Recording Action of Meetings..........................................54

TESTIMONIUM...............................................................................................
SIGNATURES AND SEALS......................................................................................
ACKNOWLEDGMENTS...........................................................................................
EXHIBIT A -- FORMS OF CERTIFICATION
</TABLE>


                                                    -v-

<PAGE>



                          HOSPITALITY PROPERTIES TRUST

         Reconciliation  and tie between Trust Indenture Act of 1939, as amended
(the "TIA"), and Indenture, dated as of __________, 199_.


               TIA Section                         Indenture Section
Sec. 310(a)(1)..........................                  607
        (a)(2)..........................                  607
        (b).............................               607, 608
Sec. 312(a).............................                  704
Sec. 312(c).............................                  701
Sec. 313(a).............................                  702
       (c)..............................                  702
Sec. 314(a).............................                 1006
       (a)(4)...........................                 1007
       (c)(1)...........................                  102
       (c)(2)...........................                  102
       (e)..............................                  102
Sec. 315(b).............................                  601
Sec. 316(a) (last sentence).............          101 ("Outstanding")
        (a)(1)(A).......................               502, 512
        (a)(1)(B).......................                  513
       (b)..............................                  508
Sec. 317(a)(1)..........................                  503
       (a)(2)...........................                  504
Sec. 318(a).............................                  111
       (c)..............................                  111

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

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

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

                                      -vi-

<PAGE>




         INDENTURE,   dated  as  of  ___________,   199_,  between   HOSPITALITY
PROPERTIES  TRUST, a Maryland real estate investment trust  (hereinafter  called
the  "Company"),  having  its  principal  office at 400 Centre  Street,  Newton,
Massachusetts  02158  and,  _____________________________,   a  ___________,  as
Trustee  hereunder  (hereinafter  called  the  "Trustee"),  having  its  initial
Corporate Trust Office at _____________________________________.

                             RECITALS OF THE COMPANY

                  The Company  deems it necessary to issue from time to time for
lawful   purposes  its  unsecured  debt  securities   (hereinafter   called  the
"Securities") evidencing its unsecured indebtedness, and has duly authorized the
execution  and delivery of this  Indenture to provide for the issuance from time
to time of the Securities, unlimited as to principal amount, to bear interest at
the rates or formulas, to mature at such times and to have such other provisions
as shall be fixed as hereinafter provided.

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

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

                  NOW, THEREFORE, THIS INDENTURE WITNESSETH:

                  For and in  consideration  of the premises and the purchase of
the Securities by the Holders thereof, it is mutually covenanted and agreed, for
the equal and  proportionate  benefit of all Holders of the  Securities  or of a
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 TIA,
either  directly or by reference  therein,  have the  meanings  assigned to them
therein, and the terms "cash transaction" and "self-liquidating  paper", as used
in TIA Section 311, shall have the meanings assigned to them in the rules of the
Commission adopted under the TIA;

                  (3) all accounting terms not otherwise defined herein have the
meanings assigned to them in accordance with GAAP; and

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

                  Certain terms,  used  principally  in Article  Three,  Article
Five, Article Six and Article Ten, are defined in those Articles.

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

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

                                                        

<PAGE>



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

                  "Authenticating   Agent"   means  any   authenticating   agent
appointed by the Trustee pursuant to Section 611.

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

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

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

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

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

                  "Business Day", when used with respect to any Place of Payment
or any  other  particular  location  referred  to in  this  Indenture  or in the
Securities,  means,  unless  otherwise  specified with respect to any Securities
pursuant  to Section  301,  any day,  other than a Saturday  or Sunday,  that is
neither a legal holiday nor a day on which banking institutions in that Place of
Payment or particular  location are authorized or required by law, regulation or
executive order to close.

                  "CEDEL" means Cedel, S.A., or its successor.

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

                  "Common Depositary" has the meaning specified in Section 304.

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

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

                  "Conversion Event" means the cessation of use of (i) a Foreign
Currency  both by the  government  of the country which issued such currency and
for the settlement of transactions by a central bank or other public institution
of or within the international  banking community,  (ii) the ECU both within the
European Monetary System and for the

                                        2

<PAGE>



settlement  of  transactions  by public  institutions  of or within the European
Communities  or (iii) any currency unit (or composite  currency)  other than the
ECU for the purposes for which it was established.

                  "Corporate  Trust  Office"  means the office of the Trustee at
which, at any particular time, its corporate trust business shall be principally
administered, which office at the date hereof is located at _____________.

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

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

                  "Custodian" has the meaning specified in Section 501.

                  "Declaration" has the meaning specified in Section 113.

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

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

                  "DTC" means The  Depository  Trust  Company,  or any successor
thereto.

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

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

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

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

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

                  "Exchange Date" has the meaning specified in Section 304.

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

                  "Funds from  Operations" for any period means the consolidated
net income of the Company and its  Subsidiaries  for such period  without giving
effect to  depreciation  and  amortization,  gains or losses from  extraordinary
items,  gains or losses on sales of real estate,  gains or losses on investments
in marketable  securities  and any  provision/benefit  for income taxes for such
period,  plus  funds from  operations  of  unconsolidated  joint  ventures,  all
determined on a consistent basis in accordance with GAAP.

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

                  "Government Obligations" means securities which are (i) direct
obligations of the United States of America or the  government  which issued the
Foreign Currency in which the Securities of a particular series are payable,

                                        3

<PAGE>



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

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

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

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

                  "interest",  when  used  with  respect  to an  Original  Issue
Discount  Security which by its terms bears interest only after Maturity,  shall
mean interest payable after Maturity,  and, when used with respect to a Security
which provides for the payment of Additional  Amounts  pursuant to Section 1007,
includes such Additional Amounts.

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

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

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

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

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


                                        4

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

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

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

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

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

                  (v) Securities converted into Common Shares,  Preferred Shares
or other  securities  of the  Company  pursuant  to or in  accordance  with this
Indenture if the terms of such Securities provide for convertibility pursuant to
Section 301;

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

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

                                        5
<PAGE>

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

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

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

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

                  "Registered  Security"  shall  mean any  Security  established
pursuant to Section 201 which is registered in the Security Register.

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

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

                  "Responsible Officer",  when used with respect to the Trustee,
means the chairman or vice-chairman  of the board of directors,  the chairman or
vice-chairman  of  the  executive  committee  of the  board  of  directors,  the
president,  any vice president  (whether or not designated by a number or a word
or words added before or after the title "vice president"),  the secretary,  any
assistant secretary,  the treasurer,  any assistant treasurer,  the cashier, any
assistant cashier, any trust officer, the controller or any other officer of the
Trustee  customarily  performing  functions similar to those performed by any of
the above  designated  officers  and also  means with  respect  to a  particular
corporate  trust  matter,  any other  officer  to whom such  matter is  referred
because of such officer's knowledge and familiarity with the particular subject.

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

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

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

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


                                        6

<PAGE>



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

                  "Subsidiary" means a corporation a majority of the outstanding
voting stock of which is owned, directly or indirectly, by the Company or by one
or more other Subsidiaries of the Company.  For the purposes of this definition,
"voting  stock" means stock having  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" or "TIA" means the Trust  Indenture Act
of 1939,  as amended and as in force at the date as of which this  Indenture was
executed, except as provided in Section 905.

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

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

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

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

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

                  Every certificate or opinion with respect to compliance with a
condition or covenant  provided for in this  Indenture  (including  certificates
delivered pursuant to Section 1006) shall include:

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

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

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


                                        7

<PAGE>
                           (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 as to some  matters and one or more other such  Persons as to
other  matters,  and any such  Person may  certify or give an opinion as to such
matters in one or several documents.

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

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

                  SECTION  104.  Acts  of  Holders.  (a)  Any  request,  demand,
authorization,  direction,  notice,  consent, waiver or other action provided by
this Indenture to be given or taken by Holders of the Outstanding  Securities of
all series or one or more  series,  as the case may be, may be  embodied  in and
evidenced by one or more  instruments of  substantially  similar tenor signed by
such Holders in person or by agents duly appointed in writing.  If Securities of
a series are issuable as Bearer Securities, any request, demand,  authorization,
direction, notice, consent, waiver or other action provided by this Indenture to
be given or taken by Holders of Securities of such series may, alternatively, be
embodied in and  evidenced by the record of Holders of Securities of such series
voting  in favor  thereof,  either in person or by  proxies  duly  appointed  in
writing,  at any meeting of Holders of Securities of such series duly called and
held in accordance with the provisions of Article  Fifteen,  or a combination of
such  instruments  and any such  record.  Except as herein  otherwise  expressly
provided, such action shall become effective when such instrument or instruments
or record or both are delivered to the Trustee and, where it is hereby expressly
required,  to the Company.  Such  instrument or instruments  and any such record
(and the action  embodied  therein and evidenced  thereby) are herein  sometimes
referred to as the "Act" of the Holders  signing such  instrument or instruments
or so voting at any such meeting.  Proof of execution of any such  instrument or
of a writing  appointing  any such  agent,  or of the holding by any Person of a
Security,  shall be sufficient  for any purpose of this Indenture and conclusive
in favor of the  Trustee  and the  Company  and any agent of the  Trustee or the
Company,  if made in the  manner  provided  in this  Section.  The record of any
meeting of  Holders of  Securities  shall be proved in the  manner  provided  in
Section 1506.

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

                  (c) The ownership of Registered  Securities shall be proved by
the Security Register.

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

                                        8
<PAGE>

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

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

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

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

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

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

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

                                        9
<PAGE>
                  If by reason of the suspension of or irregularities in regular
mail service or by reason of any other cause it shall be  impracticable  to give
such notice by mail, then such notification to Holders of Registered  Securities
as shall be made with the approval of the Trustee shall  constitute a sufficient
notification to such Holders for every purpose hereunder.

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

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

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

                  Where this Indenture  provides for notice in any manner,  such
notice may be waived in writing by the Person  entitled to receive  such notice,
either  before or after the event,  and such waiver shall be the  equivalent  of
such notice.  Waivers of notice by Holders shall be filed with the Trustee,  but
such filing  shall not be a condition  precedent  to the  validity of any action
taken in reliance upon such waiver.

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

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

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

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

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

                  SECTION 112.  Legal  Holidays.  In any case where any Interest
Payment Date, Redemption Date, Repayment Date, sinking fund payment date, Stated
Maturity or Maturity of any Security shall not be a Business Day at any Place of
Payment,  then  (notwithstanding  any other  provision of this  Indenture or any
Security or coupon other than a provision in the  Securities of any series which
specifically states that such provision shall apply in lieu hereof),

                                       10

<PAGE>



payment of interest or any Additional Amounts or principal (and premium, if any)
or sinking  fund payment need not be made at such Place of Payment on such date,
but may be made on the next  succeeding  Business  Day at such  Place of Payment
with  the  same  force  and  effect  as if made on the  Interest  Payment  Date,
Redemption  Date,  Repayment Date or sinking fund payment date, or at the Stated
Maturity or Maturity;  provided  that no interest  shall accrue on the amount so
payable for the period from and after such  Interest  Payment  Date,  Redemption
Date, Repayment Date, sinking fund payment date, Stated Maturity or Maturity, as
the case may be.

                  SECTION 113. No Personal  Liability.  THE DECLARATION OF TRUST
OF THE  COMPANY,  AS AMENDED AND  RESTATED ON AUGUST 21,  1995, A COPY OF WHICH,
TOGETHER WITH ALL AMENDMENTS THERETO (THE  "DECLARATION"),  IS DULY FILED IN THE
OFFICE OF THE DEPARTMENT OF  ASSESSMENTS  AND TAXATION OF THE STATE OF MARYLAND,
PROVIDES  THAT THE NAME  "HOSPITALITY  PROPERTIES  TRUST" REFERS TO THE TRUSTEES
UNDER  THE  DECLARATION  COLLECTIVELY  AS  TRUSTEES,  BUT  NOT  INDIVIDUALLY  OR
PERSONALLY, AND THAT NO TRUSTEE, OFFICER, SHAREHOLDER,  EMPLOYEE OR AGENT OF THE
COMPANY SHALL BE HELD TO ANY PERSONAL LIABILITY,  JOINTLY OR SEVERALLY,  FOR ANY
OBLIGATION  OF, OR CLAIM  AGAINST,  THE  COMPANY.  ALL PERSONS  DEALING WITH THE
COMPANY,  IN ANY WAY,  SHALL  LOOK  ONLY TO THE  ASSETS OF THE  COMPANY  FOR THE
PAYMENT OF ANY SUM OR THE PERFORMANCE OF ANY OBLIGATION.

                                   ARTICLE TWO

                                SECURITIES FORMS

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

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

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

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

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

                           _________________________________
                                                  as Trustee


                           By______________________________
                                        Authorized Officer


                                       11

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

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

                  Notwithstanding   the   provisions  of  Section  307,   unless
otherwise  specified as contemplated by Section 301, payment of principal of and
any premium and interest on any Security in permanent  global form shall be made
to the Person or Persons specified therein.

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


                                  ARTICLE THREE

                                 THE SECURITIES

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

                  The  Securities  may be  issued in one or more  series.  There
shall be established  in one or more Board  Resolutions or pursuant to authority
granted by one or more Board Resolutions and, subject to Section 303, set forth,
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, any or all of the following, as applicable (each of
which (except for the matters set forth in clauses (1), (2) and (14) below),  if
so provided,  may be determined from time to time by the Company with respect to
unissued Securities of the series when issued from time to time):

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

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

                                       12
<PAGE>
                           (3) the date or dates,  or the  method by which  such
         date or  dates  will be  determined,  on  which  the  principal  of the
         Securities of the series shall be payable;

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

                           (5) the place or places where the  principal  of, any
         premium and interest on and any Additional  Amounts  payable in respect
         of,  Securities  of  the  series  shall  be  payable,   any  Registered
         Securities  of  the  series  may be  surrendered  for  registration  of
         transfer,  exchange or conversion and notices or demands to or upon the
         Company in respect of the  Securities of the series and this  Indenture
         may be served;

                           (6) the period or periods within which or the date or
         dates on which,  the price or  prices  at  which,  and other  terms and
         conditions  upon which  Securities  of the series may be  redeemed,  in
         whole or in part,  at the option of the  Company,  if the Company is to
         have the option;

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

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

                           (9) if other than  Dollars,  the Foreign  Currency or
         Currencies in which payment of the principal of (and premium,  if any),
         interest, if any, on, and Additional Amounts, if any, on the Securities
         of the series shall be payable,  in which the  Securities of the series
         shall be redeemed or purchased or in which the Securities of the series
         shall be denominated;

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

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

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

                                       13
<PAGE>
         to be payable and the currency or currencies, currency unit or units or
         composite  currency or  currencies in which such  Securities  are to be
         paid;

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

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

                           (15)  whether  Securities  of  the  series  are to be
         issuable as Registered  Securities,  Bearer Securities (with or without
         coupons) or both,  any  restrictions  applicable to the offer,  sale or
         delivery  of  Bearer   Securities  and  the  terms  upon  which  Bearer
         Securities of the series may be exchanged for Registered  Securities of
         the  series  and  vice  versa  (if  permitted  by  applicable  laws and
         regulations),  whether any  Securities of the series are to be issuable
         initially in temporary  global form and whether any  Securities  of the
         series are to be  issuable  in  permanent  global  form with or without
         coupons and, if so, whether  beneficial owners of interests in any such
         permanent global Security may exchange such interests for Securities of
         such series and of like tenor of any authorized  form and  denomination
         and the  circumstances  under which any such  exchanges  may occur,  if
         other than in the manner  provided in Section 305,  and, if  Registered
         Securities of the series are to be issuable as a global  Security,  the
         identity of the depositary for such series;

                           (16) the date as of which any  Bearer  Securities  of
         the series and any temporary global Security  representing  Outstanding
         Securities  of the  series  shall be  dated  if other  than the date of
         original issuance of the first Security of the series to be issued;

                           (17)  the  Person  to  whom  any   interest   on  any
         Registered  Security of the series shall be payable,  if other than the
         Person  in  whose  name  that  Security  (or  one or  more  Predecessor
         Securities)  is  registered  at the close of  business  on the  Regular
         Record Date for such  interest,  the manner in which,  or the Person to
         whom,  any  interest  on any Bearer  Security  of the  series  shall be
         payable,  if  otherwise  than upon  presentation  and  surrender of the
         coupons  appertaining  thereto as they severally mature, and the extent
         to which, or the manner in which,  any interest  payable on a temporary
         global Security on an Interest  Payment Date will be paid if other than
         in the manner provided in Section 304;

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

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

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

                           (21) whether and under what circumstances the Company
         will pay  Additional  Amounts as  contemplated  by Section  1007 on the
         Securities  of the  series  to any  Holder  who is not a United  States
         person  (including any  modification to the definition of such term) in
         respect of any tax,  assessment  or  governmental  charge  and,  if so,
         whether  the  Company  will have the option to redeem  such  Securities
         rather  than pay such  Additional  Amounts  (and the  terms of any such
         option);

                           (22) the obligation, if any, of the Company to permit
         the  conversion of the  Securities of such series into Common Shares or
         Preferred  Shares of the Company or other  securities,  as the case may
         be, and the terms and conditions  upon which such  conversion  shall be
         effected (including, without limitation, the

                                       14
<PAGE>
         initial conversion price or rate, the conversion period, any adjustment
         of the applicable conversion price and any requirements relative to the
         reservation of such shares for purposes of conversion);

                           (23) the terms and  conditions,  if any,  upon  which
         payment of the Securities of such series shall be  subordinated  to the
         Securities  of  another  series or other  indebtedness  of the  Company
         (including, without limitation, indebtedness which ranks senior to such
         Securities;  restrictions  on  payments  to Holders of such  Securities
         while a default with respect to such senior indebtedness is continuing;
         restrictions,  if any, on  payments  to the Holders of such  Securities
         following an Event of Default; and any requirements for Holders of such
         Securities  to remit  certain  payments  to the  holders of such senior
         indebtedness);

                           (24) if the Securities of the series are to be 
         guaranteed, the term and conditions of such guarantee;

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

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

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

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

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

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

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

                  At any time and from  time to time  after  the  execution  and
delivery of this  Indenture,  the Company may deliver  Securities of any series,
together with any coupon  appertaining  thereto,  executed by the Company to the
Trustee for authentication, together with a Company Order for the authentication
and delivery of such Securities,  and the Trustee in accordance with the Company
Order shall authenticate and deliver such Securities;  provided,  however, that,
in connection with its original issuance,  no Bearer Security shall be mailed or
otherwise delivered to any location in the

                                       15
<PAGE>
United  States;  and provided  further that,  unless  otherwise  specified  with
respect to any series of Securities  pursuant to Section 301, a Bearer  Security
may be delivered in  connection  with its original  issuance  only if the Person
entitled to receive such Bearer  Security  shall have furnished a certificate in
the form set forth in Exhibit A-1 to this Indenture or such other certificate as
may be specified  with respect to any series of  Securities  pursuant to Section
301,  dated no earlier  than 15 days  prior to the  earlier of the date on which
such Bearer  Security is delivered and the date on which any temporary  Security
first becomes exchangeable for such Bearer Security in accordance with the terms
of such  temporary  Security  and  this  Indenture.  If any  Security  shall  be
represented by a permanent  global Bearer  Security,  then, for purposes of this
Section and Section 304, the notation of a beneficial  owner's  interest therein
upon  original  issuance  of such  Security  or upon  exchange of a portion of a
temporary  global Security shall be deemed to be delivery in connection with its
original  issuance of such beneficial  owner's interest in such permanent global
Security. Except as permitted by Section 306, the Trustee shall not authenticate
and deliver any Bearer Security unless all appurtenant coupons for interest then
matured have been detached and  cancelled.  If all the  Securities of any series
are not to be  issued at one time and if the Board  Resolution  or  supplemental
indenture  establishing such series shall so permit,  such Company Order may set
forth  procedures  acceptable to the Trustee for the issuance of such Securities
and  determining  the terms of  particular  Securities  of such series,  such as
interest rate or formula,  maturity  date,  date of issuance and date from which
interest shall accrue.  In  authenticating  such  Securities,  and accepting the
additional responsibilities under this Indenture in relation to such Securities,
the Trustee  shall be entitled to receive,  and (subject to TIA Sections  315(a)
through 315(d)) shall be fully protected in relying upon,

                           (i)      an Opinion of Counsel stating that

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

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

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

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

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

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

                                       16
<PAGE>
                  Each  Registered  Security  shall  be  dated  the  date of its
authentication  and each Bearer Security shall be dated as of the date specified
as contemplated by Section 301.

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

                  SECTION 304. Temporary Securities. (a) Pending the preparation
of  definitive  Securities  of any series,  the Company  may  execute,  and upon
Company Order the Trustee shall authenticate and deliver,  temporary  Securities
which  are  printed,  lithographed,   typewritten,   mimeographed  or  otherwise
produced,  in any  authorized  denomination,  substantially  of the tenor of the
definitive  Securities in lieu of which they are issued, in registered form, or,
if authorized,  in bearer form with one or more coupons or without coupons,  and
with such appropriate insertions, omissions,  substitutions and other variations
as the  officers  executing  such  Securities  may  determine,  as  conclusively
evidenced by their  execution of such  Securities.  In the case of Securities of
any series, such temporary Securities may be in global form.

                  Except in the case of  temporary  Securities  in  global  form
(which  shall be  exchanged in  accordance  with Section  304(b) or as otherwise
provided in or pursuant to a Board Resolution),  if temporary  Securities of any
series are issued,  the Company will cause definitive  Securities of that series
to be prepared without  unreasonable  delay. After the preparation of definitive
Securities  of such series,  the  temporary  Securities  of such series shall be
exchangeable  for  definitive  Securities  of such series upon  surrender of the
temporary  Securities of such series at the office or agency of the Company in a
Place of Payment for that series,  without charge to the Holder.  Upon surrender
for  cancellation  of any  one  or  more  temporary  Securities  of  any  series
(accompanied by any non-matured coupons appertaining thereto), the Company shall
execute and the Trustee shall  authenticate  and deliver in exchange  therefor a
like principal amount of definitive  Securities of the same series of authorized
denominations;  provided,  however,  that no definitive Bearer Security shall be
delivered in exchange for a temporary Registered Security;  and provided further
that a definitive Bearer Security shall be delivered in exchange for a temporary
Bearer Security only in compliance with the conditions set forth in Section 303.
Until so exchanged, the temporary Securities of any series shall in all respects
be entitled to the same benefits under this  Indenture as definitive  Securities
of such series.

                  (b)  Unless  otherwise  provided  in or  pursuant  to a  Board
Resolution,   this  Section  304(b)  shall  govern  the  exchange  of  temporary
Securities  issued in global form other than through the  facilities  of DTC. If
any such temporary Security is issued in global form, then such temporary global
Security shall,  unless otherwise  provided therein,  be delivered to the London
office of a depositary or common depositary (the "Common  Depositary"),  for the
benefit of Euroclear  and CEDEL,  for credit to the  respective  accounts of the
beneficial  owners of such  Securities  (or to such other  accounts  as they may
direct).

                  Without  unnecessary delay but in any event not later than the
date  specified in, or determined  pursuant to the terms of, any such  temporary
global Security (the "Exchange Date"),  the Company shall deliver to the Trustee
definitive  Securities,  in aggregate  principal  amount equal to the  principal
amount of such temporary global Security,  executed by the Company.  On or after
the Exchange Date,  such temporary  global  Security shall be surrendered by the
Common Depositary to the Trustee, as the Company's agent for such purpose, to be
exchanged,  in whole or from  time to time in part,  for  definitive  Securities
without charge, and the Trustee shall authenticate and deliver,  in exchange for
each portion of such temporary  global  Security,  an equal aggregate  principal
amount of definitive  Securities of the same series of authorized  denominations
and of like  tenor  as the  portion  of such  temporary  global  Security  to be
exchanged.

                                       17
<PAGE>
The  definitive  Securities  to be delivered in exchange for any such  temporary
global  Security  shall be in bearer form,  registered  form,  permanent  global
bearer form or permanent global registered form, or any combination  thereof, as
specified as contemplated by Section 301, and, if any combination  thereof is so
specified,  as requested by the  beneficial  owner thereof;  provided,  however,
that,  unless otherwise  specified in such temporary global Security,  upon such
presentation  by the  Common  Depositary,  such  temporary  global  Security  is
accompanied  by a certificate  dated the Exchange Date or a subsequent  date and
signed by Euroclear as to the portion of such temporary global Security held for
its account then to be exchanged and a certificate  dated the Exchange Date or a
subsequent  date and signed by CEDEL as to the portion of such temporary  global
Security held for its account then to be  exchanged,  each in the form set forth
in Exhibit  A-2 to this  Indenture  or in such other form as may be  established
pursuant to Section 301; and provided further that definitive  Bearer Securities
shall be delivered in exchange for a portion of a temporary global Security only
in compliance with the requirements of Section 303.

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

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

                  SECTION  305.  Registration,   Registration  of  Transfer  and
Exchange.  The Company shall cause to be kept at the  Corporate  Trust Office of
the  Trustee or in any  office or agency of the  Company in a Place of Payment a
register for each series of Securities (the registers  maintained in such office
or in any such  office or  agency of the  Company  in a Place of  Payment  being
herein sometimes referred to collectively as the "Security  Register") in which,
subject to such  reasonable  regulations as it may prescribe,  the Company shall
provide for the  registration  of  Registered  Securities  and of  transfers  of
Registered  Securities.  The Security  Register  shall be in written form or any
other form
                                       18
<PAGE>
capable of being  converted  into  written form within a  reasonable  time.  The
Trustee,  at its Corporate Trust Office, is hereby initially appointed "Security
Registrar" for the purpose of registering Registered Securities and transfers of
Registered Securities on such Security Register as herein provided. In the event
that the Trustee shall cease to be Security  Registrar,  it shall have the right
to examine the Security Register at all reasonable times.

                  Subject to the  provisions of this Section 305, upon surrender
for  registration  of transfer of any  Registered  Security of any series at any
office or agency of the  Company  in a Place of  Payment  for that  series,  the
Company shall execute,  and the Trustee shall  authenticate and deliver,  in the
name of the  designated  transferee or  transferees,  one or more new Registered
Securities of the same series,  of any  authorized  denominations  and of a like
aggregate principal amount, bearing a number not contemporaneously  outstanding,
and containing identical terms and provisions.

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

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

                  Notwithstanding  the foregoing,  except as otherwise specified
as  contemplated  by  Section  301,  any  permanent  global  Security  shall  be
exchangeable  only as  provided in this  paragraph.  If the  depositary  for any
permanent global Security is DTC, then, unless the terms of such global Security
expressly  permit such global  Security to be  exchanged in whole or in part for
definitive Securities, a global Security may be transferred, in whole but not in
part, only to a nominee of DTC, or by a nominee of DTC to DTC, or to a successor
to DTC for such  global  Security  selected  or  approved by the Company or to a
nominee of such successor to DTC. If at any time DTC notifies the Company that

                                       19
<PAGE>
it is unwilling or unable to continue as depositary  for the  applicable  global
Security  or  Securities  or if at any time DTC ceases to be a  clearing  agency
registered under the Securities Exchange Act of 1934, as amended, if so required
by  applicable  law  or  regulation,  the  Company  shall  appoint  a  successor
depositary  with  respect  to  such  global  Security  or  Securities.  If (x) a
successor  depositary for such global Security or Securities is not appointed by
the  Company  within 90 days after the Company  receives  such notice or becomes
aware of such unwillingness, inability or ineligibility, (y) an Event of Default
has occurred and is continuing and the beneficial owners representing a majority
in principal amount of the applicable  series of Securities  represented by such
global Security or Securities  advise DTC to cease acting as depositary for such
global  Security  or  Securities  or (z) the  Company,  in its sole  discretion,
determines at any time that all  Outstanding  Securities (but not less than all)
of any series  issued or issuable  in the form of one or more global  Securities
shall no longer be represented by such global  Security or Securities,  then the
Company  shall  execute,   and  the  Trustee  shall  authenticate  and  deliver,
definitive  Securities of like series,  rank, tenor and terms in definitive form
in an aggregate  principal  amount equal to the principal  amount of such global
Security or Securities.  If any  beneficial  owner of an interest in a permanent
global  Security is otherwise  entitled to exchange such interest for Securities
of such series and of like tenor and principal amount of another authorized form
and denomination,  as specified as contemplated by Section 301 and provided that
any applicable  notice provided in the permanent global Security shall have been
given,  then  without  unnecessary  delay  but in any  event no  later  than the
earliest  date on which such  interest may be so  exchanged,  the Company  shall
execute, and the Trustee shall authenticate and deliver,  definitive  Securities
in aggregate  principal  amount equal to the principal amount of such beneficial
owner's  interest in such permanent  global  Security.  On or after the earliest
date on which such interests may be so exchanged, such permanent global Security
shall be  surrendered  for exchange by DTC or such other  depositary as shall be
specified  in the Company  Order with  respect  thereto to the  Trustee,  as the
Company's agent for such purpose; provided,  however, that no such exchanges may
occur  during a period  beginning  at the opening of business 15 days before any
selection of  Securities  to be redeemed  and ending on the relevant  Redemption
Date if the Security for which exchange is requested may be among those selected
for  redemption;  and  provided  further  that no Bearer  Security  delivered in
exchange  for a  portion  of a  permanent  global  Security  shall be  mailed or
otherwise  delivered  to any  location  in the United  States.  If a  Registered
Security is issued in exchange  for any portion of a permanent  global  Security
after the close of business at the office or agency where such  exchange  occurs
on (i) any Regular Record Date and before the opening of business at such office
or agency on the relevant Interest Payment Date, or (ii) any Special Record Date
and  before the  opening of  business  at such  office or agency on the  related
proposed date for payment of Defaulted Interest, interest or Defaulted Interest,
as the case  may be,  will  not be  payable  on such  Interest  Payment  Date or
proposed  date for  payment,  as the case may be, in respect of such  Registered
Security, but will be payable on such Interest Payment Date or proposed date for
payment,  as the case may be, only to the Person to whom  interest in respect of
such portion or such permanent global Security is payable in accordance with the
provisions of this Indenture.

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

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

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

                  The  Company  or the  Trustee,  as  applicable,  shall  not be
required (i) to issue, register the transfer of or exchange any Security if such
Security may be among those selected for redemption during a period beginning at
the  opening of  business  15 days  before  selection  of the  Securities  to be
redeemed  under  Section 1103 and ending at the close of business on (A) if such
Securities are issuable only as Registered Securities, the day of the mailing of
the relevant  notice of redemption  and (B) if such  Securities  are issuable as
Bearer Securities, the day of the first publication of the

                                       20
<PAGE>
relevant  notice of  redemption  or, if such  Securities  are also  issuable  as
Registered  Securities and there is no publication,  the mailing of the relevant
notice of  redemption,  or (ii) to register  the  transfer  of or  exchange  any
Registered  Security so selected for redemption in whole or in part,  except, in
the case of any Registered  Security to be redeemed in part, the portion thereof
not to be  redeemed,  or (iii) to exchange  any Bearer  Security so selected for
redemption  except that such a Bearer Security may be exchanged for a Registered
Security  of that  series  and of like  tenor;  provided  that  such  Registered
Security shall be simultaneously  surrendered for redemption,  or (iv) to issue,
register the transfer of or exchange any Security which has been surrendered for
repayment  at the option of the  Holder,  except that  portion,  if any, of such
Security which is not to be so repaid.

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

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

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

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

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

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

                  SECTION 307. Payment of Interest;  Interest Rights  Preserved.
Except  as  otherwise  specified  with  respect  to a series  of  Securities  in
accordance  with the  provisions  of Section  301,  interest  on any  Registered
Security that
                                       21
<PAGE>
is payable, and is punctually paid or duly provided for, on any Interest Payment
Date  shall be paid to the Person in whose  name that  Security  (or one or more
Predecessor  Securities)  is  registered at the close of business on the Regular
Record Date for such interest at the office or agency of the Company  maintained
for such  purpose  pursuant  to  Section  1002;  provided,  however,  that  each
installment of interest on any Registered  Security may at the Company's  option
be paid by (i) mailing a check for such interest, payable to or upon the written
order of the Person entitled  thereto pursuant to Section 308, to the address of
such  Person as it appears  on the  Security  Register  or (ii)  transfer  to an
account maintained by the payee located inside the United States.

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

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

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

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

                           (1) The  Company  may  elect to make  payment  of any
         Defaulted  Interest  to the  Persons  in  whose  names  the  Registered
         Securities of such series (or their respective Predecessor  Securities)
         are  registered  at the close of business on a Special  Record Date for
         the  payment of such  Defaulted  Interest,  which shall be fixed in the
         following  manner.  The Company  shall notify the Trustee in writing of
         the amount of Defaulted Interest proposed to be paid on each Registered
         Security of such  series and the date of the  proposed  payment  (which
         shall not be less than 20 days after  such  notice is  received  by the
         Trustee),  and at the same  time the  Company  shall  deposit  with the
         Trustee an amount of money in the currency or currencies, currency unit
         or units or composite currency or currencies in which the Securities of
         such  series are payable  (except as  otherwise  specified  pursuant to
         Section 301 for the  Securities  of such series) equal to the aggregate
         amount  proposed  to be paid in respect of such  Defaulted  Interest or
         shall make arrangements satisfactory to the Trustee for such deposit on
         or prior to the date of the proposed payment, such money when deposited
         to be held in trust for the  benefit of the  Persons  entitled  to such
         Defaulted  Interest as in this clause  provided.  Thereupon the Trustee
         shall fix a  Special  Record  Date for the  payment  of such  Defaulted
         Interest which shall not be more than 15 days and not less than 10 days
         prior to the date of the  proposed  payment  and not less  than 10 days
         after the receipt by the Trustee of the notice of the proposed payment.
         The Trustee shall  promptly  notify the Company of such Special  Record
         Date and,  in the name and at the expense of the  Company,  shall cause
         notice of the  proposed  payment  of such  Defaulted  Interest  and the
         Special Record Date therefor to be mailed, first-class postage prepaid,
         to each Holder of  Registered  Securities of such series at his address
         as it appears in the  Security  Register not less than 10 days prior to
         such Special  Record Date. The Trustee may, in its  discretion,  in the
         name and at the expense of the  Company,  cause a similar  notice to be
         published  at least once in an  Authorized  Newspaper  in each Place of
         Payment,  but such publications  shall not be a condition  precedent to
         the  establishment of such Special Record Date.  Notice of the proposed
         payment of such Defaulted Interest and
                                       22
<PAGE>
         the Special Record Date therefor having been mailed as aforesaid,  such
         Defaulted  Interest  shall be paid to the  Persons  in whose  names the
         Registered  Securities of such series (or their respective  Predecessor
         Securities)  are  registered  at the close of business on such  Special
         Record Date and shall no longer be payable  pursuant  to the  following
         clause (2). In case a Bearer  Security of any series is surrendered for
         transfer  or exchange at the office or agency in a Place of Payment for
         such series after the close of business at such office or agency on any
         Special  Record  Date and before the opening of business at such office
         or  agency  on the  related  proposed  date for  payment  of  Defaulted
         Interest,  such Bearer Security shall be surrendered without the coupon
         relating to such proposed  date of payment and Defaulted  Interest will
         not be  payable  on such  proposed  date of  payment  in respect of the
         Registered  Security issued in exchange for such Bearer  Security,  but
         will  be  payable  only  to the  Holder  of  such  coupon  when  due in
         accordance with the provisions of this Indenture.

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

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

                  SECTION 308.  Persons Deemed Owners.  Prior to due presentment
of a Registered Security for registration of transfer,  the Company, the Trustee
and any agent of the  Company or the  Trustee may treat the Person in whose name
such  Registered  Security is  registered  as the owner of such Security for the
purpose of receiving payment of principal of (and premium, if any), and (subject
to Sections 305 and 307) interest on, such Registered Security and for all other
purposes  whatsoever,  whether or not such Registered  Security is overdue,  and
neither  the  Company,  the  Trustee nor any agent of the Company or the Trustee
shall be affected by notice to the contrary.

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

                  None of the  Company,  the  Trustee,  any Paying  Agent or the
Security  Registrar will have any  responsibility or liability for any aspect of
the  records  relating to or payments  made on account of  beneficial  ownership
interests  of a  Security  in global  form or for  maintaining,  supervising  or
reviewing any records relating to such beneficial ownership interests.

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

                  SECTION  309.   Cancellation.   All   Securities  and  coupons
surrendered  for  payment,  redemption,  repayment  at the option of the Holder,
registration  of transfer or  exchange  or for credit  against any sinking  fund
payment shall, if surrendered to any Person other than the Trustee, be delivered
to the Trustee,  and any such  Securities and coupons and Securities and coupons
surrendered  directly  to the  Trustee  for any such  purpose  shall be promptly
cancelled  by it.  The  Company  may at any  time  deliver  to the  Trustee  for
cancellation any Securities  previously  authenticated  and delivered  hereunder
which the Company may have acquired in any manner whatsoever, and may deliver to
the  Trustee  (or  to  any  other  Person  for  delivery  to  the  Trustee)  for
cancellation any Securities previously authenticated hereunder which the Company
has not issued and sold,  and all  Securities  so  delivered  shall be  promptly
cancelled by the Trustee.

                                       23
<PAGE>
If the Company shall so acquire any of the Securities, however, such acquisition
shall  not  operate  as  a  redemption  or  satisfaction  of  the   indebtedness
represented by such Securities  unless and until the same are surrendered to the
Trustee for cancellation.  No Securities shall be authenticated in lieu of or in
exchange for any  Securities  cancelled as provided in this  Section,  except as
expressly permitted by this Indenture.  Cancelled Securities and coupons held by
the Trustee  shall be destroyed by the Trustee and the Trustee  shall  deliver a
certificate of such  destruction  to the Company,  unless by a Company Order the
Company directs their return to it.

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

                                  ARTICLE FOUR

                           SATISFACTION AND DISCHARGE

                  SECTION 401.  Satisfaction  and Discharge of  Indenture.  This
Indenture  shall upon Company Request cease to be of further effect with respect
to any series of Securities  specified in such Company Request (except as to any
surviving  rights of  registration of transfer or exchange of Securities of such
series  herein  expressly  provided  for and any  right  to  receive  Additional
Amounts,  as provided  in Section  1007),  and the  Trustee,  upon  receipt of a
Company  Order,  and at  the  expense  of  the  Company,  shall  execute  proper
instruments  acknowledging  satisfaction  and discharge of this  Indenture as to
such series when

                           (1)  either

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

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

                                        (i)       have  become due and  payable,
                                                  or

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

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

                  and the Company,  in the case of (i), (ii) or (iii) above, has
                  irrevocably  deposited  or  caused  to be  deposited  with the
                  Trustee  as funds in trust for such  purpose  an amount in the
                  currency or  currencies,  currency  unit or units or composite
                  currency or currencies in which the  Securities of such series
                  are
                                       24
<PAGE>
                  payable,   sufficient   to  pay  and   discharge   the  entire
                  indebtedness   on  such   Securities   and  such  coupons  not
                  theretofore  delivered  to the Trustee for  cancellation,  for
                  principal  (and  premium,  if  any)  and  interest,   and  any
                  Additional  Amounts with respect thereto,  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 as to such series have been  complied
         with.

The obligations of the Company to the Trustee and any predecessor  Trustee under
Section 606, the  obligations of the Company to any  Authenticating  Agent under
Section 611 and, if money shall have been deposited with and held by 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
the satisfaction and discharge of this Indenture.

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

                                  ARTICLE FIVE

                                    REMEDIES

                  SECTION 501. Events of Default.  "Event of Default",  wherever
used herein with respect to any particular  series of Securities,  means any one
of the  following  events  (whatever  the reason  for such Event of Default  and
whether or not it 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):

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

                           (2)  default in the payment of the  principal  of (or
         premium,  if any,  on) any  Security of that series when it becomes due
         and payable at its Maturity; or

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

                           (4) default in the  performance of, or breach of, any
         covenant  of the  Company in this  Indenture  (other  than a covenant a
         default  in whose  performance  or whose  breach is  elsewhere  in this
         Section specifically dealt with or which has been expressly included in
         this Indenture  solely for the benefit of a 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 a majority in  principal  amount of
         the Outstanding Securities of that series a

                                       25
<PAGE>
         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) a  default  under any  bond,  debenture,  note or
         other evidence of indebtedness  of the Company,  or under any mortgage,
         indenture or other instrument of the Company  (including a default with
         respect to Securities of any series other than that series) under which
         there may be issued or by which there may be secured  any  indebtedness
         of the  Company  (or by any  Subsidiary,  the  repayment  of which  the
         Company has guaranteed or for which the Company is directly responsible
         or liable as obligor  or  guarantor),  whether  such  indebtedness  now
         exists or shall hereafter be created,  which default shall constitute a
         failure to pay an aggregate  principal amount  exceeding  $_________ of
         such  indebtedness  when due and payable  after the  expiration  of any
         applicable grace period with respect thereto and shall have resulted in
         such   indebtedness  in  an  aggregate   principal   amount   exceeding
         $__________  becoming or being  declared  due and payable  prior to the
         date on which it would  otherwise have become due and payable,  without
         such indebtedness  having been discharged,  or such acceleration having
         been  rescinded  or  annulled,  within a period of 10 days after  there
         shall have 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 a majority in principal  amount of the Outstanding  Securities of
         that series a written notice  specifying such default and requiring the
         Company  to cause  such  indebtedness  to be  discharged  or cause such
         acceleration  to be  rescinded or annulled and stating that such notice
         is a "Notice of Default" hereunder; or

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

                           (A) commences a voluntary case,

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

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

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

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

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

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

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

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

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

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

                  SECTION  502.   Acceleration   of  Maturity;   Rescission  and
Annulment.  If an Event of Default with respect to  Securities  of any series at
the time  Outstanding  occurs and is continuing  (other than an Event of Default
described in Section 501(6) or 501(7)),  then and in every such case the Trustee
or the Holders of not less than a majority

                                       26

<PAGE>
in principal amount of the Outstanding Securities of that series may declare the
principal  (or, if any  Securities  are Original  Issue  Discount  Securities or
Indexed  Securities,  such  portion of the  principal as may be specified in the
terms  thereof)  of all the  Securities  of that  series  to be due and  payable
immediately,  by a notice in writing to the Company (and to the Trustee if given
by the  Holders),  and upon any such  declaration  such  principal  or specified
portion thereof shall become immediately due and payable. If an Event of Default
described in Section  501(6) or 501(7) with respect to any series of  Securities
at the time outstanding occurs, the principal amount of all of the Securities of
that series (or, in the case of any such Original Issue  Discount  Securities or
Indexed  Securities,  such  portion of the  principal as may be specified in the
terms thereof) will automatically,  and without any action by the Trustee or any
Holder thereof, 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 in the  currency,  currency  unit or
         composite  currency in which the  Securities of such series are payable
         (except  as  otherwise  specified  pursuant  to  Section  301  for  the
         Securities of such series):

                                    (A) all overdue  installments of interest on
                  and  any  Additional   Amounts   payable  in  respect  of  all
                  Outstanding Securities of that series and any related coupons,

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

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

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

                           (2) all Events of Default with respect to  Securities
         of that  series,  other than the  nonpayment  of the  principal  of (or
         premium,  if any) or interest on  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 installment
         of  interest or  Additional  Amounts,  if any,  on any  Security of any
         series and any related  coupon when such interest or Additional  Amount
         becomes due and payable and such default  continues  for a period of 30
         days, or

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

then the Company will, upon demand of the Trustee,  pay to the Trustee,  for the
benefit of the Holders of such Securities of such series and coupons,  the whole
amount then due and payable on such  Securities  and coupons for principal  (and
premium, if any) and interest and Additional Amounts thereon, with interest upon
any overdue  principal (and premium,  if any) and, to the extent that payment of
such interest shall be legally enforceable, upon any overdue installments of

                                       27
<PAGE>
interest or Additional Amounts thereon, if any, at the rate or rates borne by or
provided for 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 the Company fails to pay such amounts  forthwith  upon such
demand,  the Trustee,  in its own name and as trustee of an express  trust,  may
institute  a  judicial  proceeding  for the  collection  of the  sums so due and
unpaid,  and may prosecute such proceeding to judgment or final decree,  and may
enforce the same against the Company or any other  obligor upon such  Securities
of such series and  collect the moneys  adjudged or decreed to be payable in the
manner  provided by law out of the property of the Company or any other  obligor
upon such Securities of such series, wherever situated.

                  If an Event of  Default  with  respect  to  Securities  of any
series occurs and is continuing,  the Trustee may in its  discretion  proceed to
protect and enforce  its rights and the rights of the Holders of  Securities  of
such series and any related coupons 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 the
pendency   of   any   receivership,    insolvency,   liquidation,    bankruptcy,
reorganization,   arrangement,   adjustment,   composition   or  other  judicial
proceeding  relative to the Company or any other obligor upon the  Securities or
the  property of the Company or of such other  obligor or their  creditors,  the
Trustee  (irrespective  of whether the principal of the Securities of any series
shall  then be due  and  payable  as  therein  expressed  or by  declaration  or
otherwise and  irrespective of whether the Trustee shall have made any demand on
the  Company  for the payment of overdue  principal  of, or premium,  if any, or
interest on, the Securities) shall be entitled and empowered, by intervention in
such proceeding or otherwise:

                           (i) to file and prove a claim  for the whole  amount,
         or such lesser amount as may be provided for in the  Securities of such
         series, of principal (and premium,  if any) and interest and Additional
         Amount,  if any,  owing and unpaid in respect of the  Securities and to
         file such other papers or documents as may be necessary or advisable in
         order to have the claims of the  Trustee  (including  any claim for the
         reasonable  compensation,  expenses,  disbursements and advances of the
         Trustee,  its agents and  counsel)  and of the Holders  allowed in such
         judicial proceeding, and

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

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

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

                  SECTION 505. Trustee May Enforce Claims Without  Possession of
Securities or Coupons.  All rights of action and claims under this  Indenture or
any of the  Securities or coupons may be prosecuted  and enforced by the Trustee
without the  possession of any of the  Securities  or coupons or the  production
thereof in any proceeding relating thereto,  and any such proceeding  instituted
by the Trustee shall be brought in its own name as trustee of an express  trust,
and any  recovery  of judgment  shall,  after  provision  for the payment of the
reasonable compensation, expenses,
                                       28
<PAGE>
disbursements  and advances of the Trustee,  its agents and counsel,  be for the
ratable  benefit of the  Holders of  Securities  and coupons in respect of which
such judgment has been recovered.

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

                           FIRST:  To the payment of all amounts due to the 
         Trustee and any predecessor Trustee under Section 606;

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

                           THIRD:  To the payment of the remainder, if any, to 
         the Company.

                  SECTION 507. Limitation on Suits. No Holder of any Security of
any  series  or any  related  coupon  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 a  majority  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 such
Holders.

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

                                       29
<PAGE>
                  SECTION  509.  Restoration  of  Rights  and  Remedies.  If the
Trustee or any Holder of a Security or coupon has  instituted  any proceeding to
enforce any right or remedy under this  Indenture and such  proceeding  has been
discontinued or abandoned for any reason,  or has been  determined  adversely to
the  Trustee or to such  Holder,  then and in every such case the  Company,  the
Trustee  and the  Holders  of  Securities  and  coupons  shall,  subject  to any
determination  in such  proceeding,  be restored  severally and  respectively to
their former  positions  hereunder and thereafter all rights and remedies of the
Trustee and the Holders  shall  continue as though no such  proceeding  had been
instituted.

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

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

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

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

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

                  (3) the Trustee need not take any action which might expose it
         to  personal  liability  or be unduly  prejudicial  to the  Holders  of
         Securities of such series not joining therein.

                  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  and any
related coupons waive any past default hereunder with respect to such series and
its consequences, except a default

                  (1) in the payment of the principal of (or premium, if any) or
         interest on or Additional Amounts payable in respect of any Security of
         such series or any related coupons, 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 Event of Default or impair any right consequent thereon.

                  SECTION  514.  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
                                       30
<PAGE>

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.

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

                                   ARTICLE SIX

                                   THE TRUSTEE

                  SECTION  601.  Notice of  Defaults.  Within 90 days  after the
occurrence  of any  default  hereunder  with  respect to the  Securities  of any
series,  the Trustee shall transmit in the manner and to the extent  provided in
TIA Section  313(c),  notice of such  default  hereunder  known to the  Trustee,
unless such default shall have been cured or waived;  provided,  however,  that,
except in the case of a default in the payment of the  principal of (or premium,
if any) or interest on or any  Additional  Amounts or sinking  fund  installment
with respect to the Securities of such series, the Trustee shall be protected in
withholding such notice if and so long as Responsible Officers of the Trustee in
good faith  determine that the  withholding of such notice is in the interest of
the Holders of the Securities and coupons of such series;  and provided  further
that in the case of any default or breach of the character  specified in Section
501(4) with respect to the Securities and coupons of such series, no such notice
to Holders shall be given until at least 60 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 the Securities of such series.

                  SECTION  602.  Certain  Rights  of  Trustee.  Subject  to  the
provisions of TIA Section 315(a) through 315(d):

                           (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,  coupon  or  other  paper or
         document  believed  by it to be  genuine  and to have  been  signed  or
         presented by the proper party or parties;

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

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

                           (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 of  Securities  of any
         series or any related coupons  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, coupon or other paper
         or document, but the Trustee, in its discretion,  may make such further
         inquiry or investigation  into such facts or matters as it may see fit,
         and, if the Trustee  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;

                           (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; and

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

                  The  Trustee  shall not be  required to expend or risk its own
funds or otherwise  incur any financial  liability in the  performance of any of
its duties hereunder, or in the exercise of any of its rights or powers.

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

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

                  SECTION 605. Money Held in Trust. 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 otherwise agreed with the Company.

                  SECTION  606.  Compensation  and  Reimbursement.  The  Company
agrees:

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

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<PAGE>
                           (2) except as otherwise expressly provided herein, to
         reimburse  each of the Trustee  and any  predecessor  Trustee  upon its
         request  for  all  reasonable  expenses,   disbursements  and  advances
         incurred or made by the Trustee in  accordance  with any  provision  of
         this Indenture (including the reasonable  compensation and the expenses
         and disbursements of its agents and counsel),  except any such expense,
         disbursement or advance as may be attributable to its negligence or bad
         faith; and

                           (3)  to  indemnify   each  of  the  Trustee  and  any
         predecessor  Trustee  for, and to hold it harmless  against,  any loss,
         liability or expense  incurred  without  negligence or bad faith on its
         own  part,  arising  out of or in  connection  with the  acceptance  or
         administration  of the trust or trusts  hereunder,  including the costs
         and  expenses of  defending  itself  against any claim or  liability in
         connection  with the  exercise or  performance  of any of its powers or
         duties hereunder.

                  When the  Trustee  incurs  expenses  or  renders  services  in
connection  with an Event of  Default  specified  in  Section  501(6) or Section
501(7),  the  expenses  (including  the  reasonable  charges and expenses of its
counsel)  and the  compensation  for the  services  are  intended to  constitute
expenses of  administration  under any applicable  Federal or state  bankruptcy,
insolvency or other similar law.

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

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

                  SECTION  607.   Corporate   Trustee   Required;   Eligibility;
Conflicting  Interests.  There shall at all times be a Trustee  hereunder  which
shall be eligible to act as Trustee under TIA Section 310(a)(1) and shall have a
combined  capital  and  surplus  of at least  $50,000,000.  If such  corporation
publishes  reports  of  condition  at  least  annually,  pursuant  to law or the
requirements of Federal, state,  Territorial or District of Columbia supervising
or  examining  authority,  then for the purposes of this  Section,  the combined
capital  and  surplus  of such  corporation  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  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  608.   Resignation   and  Removal;   Appointment   of
Successor.  (a) No resignation or removal of the Trustee and no appointment of a
successor  Trustee  pursuant to this Article  shall become  effective  until the
acceptance  of  appointment  by the  successor  Trustee in  accordance  with the
applicable requirements of Section 609.

                  (b) The  Trustee  may  resign at any time with  respect to the
Securities  of one or more  series  by  giving  written  notice  thereof  to the
Company.  If an instrument  of acceptance by a successor  Trustee 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.

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

                  (d)  If at any time:

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

                                       33
<PAGE>
                           (2) the  Trustee  shall  cease to be  eligible  under
         Section 607(a) and shall fail to resign after written request  therefor
         by the Company or by any Holder of a Security  who has been a bona fide
         Holder of a Security for at least six months, 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, (i) the Company by or pursuant to a Board Resolution may
remove  the  Trustee  and  appoint  a  successor  Trustee  with  respect  to all
Securities,  or (ii) subject to TIA Section 315(e), any Holder of a Security 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.

                  (e)  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 reason with respect to the Securities of one or more series, the Company, by
or pursuant to a Board Resolution, shall promptly appoint a successor Trustee or
Trustees  with  respect  to the  Securities  of 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).
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,  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 of Securities  and accepted  appointment  in the manner  hereinafter
provided  any Holder of a Security who has been a bona fide Holder of a Security
of such  series for at least six months may, on behalf of himself and all others
similarly  situated,  petition  any  court  of  competent  jurisdiction  for the
appointment of a successor Trustee with respect to Securities of such series.

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

                  SECTION 609.  Acceptance of Appointment  by Successor.  (a) In
case of the  appointment  hereunder  of a successor  Trustee with respect to all
Securities,  every such successor Trustee shall execute, acknowledge and deliver
to  the  Company  and 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,  upon  request  of the  Company  or the
successor  Trustee,  such retiring  Trustee shall,  upon payment of its charges,
execute and deliver an instrument transferring to such successor Trustee all the
rights,  powers  and trusts of the  retiring  Trustee,  and shall  duly  assign,
transfer  and deliver to such  successor  Trustee all property and money held by
such retiring  Trustee  hereunder,  subject  nevertheless  to its claim, if any,
provided for in Section 606.

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

                                       34
<PAGE>
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.

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

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

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

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

                                       35
<PAGE>
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 further act on the part of the Trustee or the Authenticating Agent.

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

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

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

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

                           _________________________________
                                                  as Trustee


                           By:_________________________________
                                       as Authenticating Agent


                           By:__________________________________
                                          Authorized Officer


                                  ARTICLE SEVEN

                HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY

                  SECTION  701.  Disclosure  of Names and  Addresses of Holders.
Every Holder of Securities or coupons, by receiving and holding the same, agrees
with the Company and the  Trustee  that  neither the Company nor the Trustee nor
any  Authenticating  Agent nor any Paying Agent nor any Security Registrar shall
be held  accountable  by reason of the  disclosure of any  information as to the
names and addresses of the Holders of Securities in accordance

                                       36

<PAGE>

with TIA Section 312,  regardless of the source from which such  information was
derived, and that the Trustee shall not be held accountable by reason of mailing
any material pursuant to a request made under TIA Section 312(b).

                  SECTION 702.  Reports by Trustee.  Within 60 days after May 15
of each year  commencing  with the first  May 15 after  the  first  issuance  of
Securities pursuant to this Indenture, the Trustee shall transmit by mail to all
Holders of Securities as provided in TIA Section  313(c) a brief report dated as
of such May 15 if required by TIA Section 313(a).

                  SECTION 703.  Reports by Company.  The Company will:

                           (1) file with the  Trustee,  within 15 days after the
         Company is required to file the same with the Commission, copies of the
         annual reports and of the information,  documents and other reports (or
         copies of such portions of any of the foregoing as the  Commission  may
         from time to time by rules and regulations prescribe) which the Company
         may be required to file with the  Commission  pursuant to Section 13 or
         Section  15(d)  of the  Securities  Exchange  Act of 1934;  or,  if the
         Company  is not  required  to file  information,  documents  or reports
         pursuant to either of such Sections, then it will file with the Trustee
         and the Commission, in accordance with rules and regulations prescribed
         from  time to time by the  Commission,  such of the  supplementary  and
         periodic  information,  documents  and  reports  which may be  required
         pursuant  to  Section  13 of the  Securities  Exchange  Act of  1934 in
         respect of a security  listed and  registered on a national  securities
         exchange  as may be  prescribed  from  time to time in such  rules  and
         regulations;

                           (2) file  with the  Trustee  and the  Commission,  in
         accordance with rules and  regulations  prescribed from time to time by
         the Commission, such additional information, documents and reports with
         respect to compliance by the Company with the  conditions and covenants
         of this  Indenture  as may be required  from time to time by such rules
         and regulations; and

                           (3)  transmit by mail to the  Holders of  Securities,
         within 30 days after the filing thereof with the Trustee, in the manner
         and to the extent provided in TIA Section 313(c), such summaries of any
         information,  documents and reports required to be filed by the Company
         pursuant to  paragraphs  (1) and (2) of this section as may be required
         by  rules  and  regulations   prescribed  from  time  to  time  by  the
         Commission.

                  SECTION 704. Company to Furnish to Trustee Names and Addresses
of Holders. The Company will furnish or cause to be furnished to the Trustee:

                  (a)  semi-annually,  not later than 25 days after the  Regular
Record Date for interest for each series of Securities,  a list, in such form as
the Trustee may reasonably require, of the names and addresses of the Holders of
Registered Securities of such series as of such Regular Record Date, or if there
is  no  Regular  Record  Date  for  interest  for  such  series  of  Securities,
semiannually,  upon  such  dates as are set  forth in the  Board  Resolution  or
indenture supplemental hereto authorizing such series, and

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

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

                                  ARTICLE EIGHT

                CONSOLIDATION, MERGER, SALE, LEASE OR CONVEYANCE

                  SECTION 801.  Consolidations and Mergers of Company and Sales,
Leases and Conveyances Permitted Subject to Certain Conditions.  The Company may
consolidate  with,  or sell,  lease or convey  all or  substantially  all of its
assets to, or merge  with or into any other  corporation;  provided  that in any
such case, (i) either the Company

                                       37

<PAGE>

shall be the continuing  corporation,  or the successor  corporation  shall be a
corporation  organized  and  existing  under the laws of the United  States or a
State thereof and such successor  corporation shall expressly assume the due and
punctual  payment of the  principal  of (and  premium,  if any) and any interest
(including all Additional  Amounts, if any, payable pursuant to Section 1007) on
all of the  Securities,  according  to  their  tenor,  and the due and  punctual
performance  and  observance  of all of the  covenants  and  conditions  of this
Indenture to be performed by the Company by  supplemental  indenture,  complying
with Article Nine hereof, satisfactory to the Trustee, executed and delivered to
the Trustee by such corporation and (ii) immediately after giving effect to such
transaction  and treating any  indebtedness  which  becomes an obligation of the
Company or any  Subsidiary  as a result  thereof as having been  incurred by the
Company or such Subsidiary at the time of such transaction, no Event of Default,
and no event which,  after notice or the lapse of time, or both, would become an
Event of Default, shall have occurred and be continuing.

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

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

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

                                  ARTICLE NINE

                             SUPPLEMENTAL INDENTURES

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

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

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

                                       38
<PAGE>
                           (3) to add any  additional  Events of Default for the
         benefit of the Holders of all or any series of Securities  (and if such
         Events of Default  are to be for the benefit of less than all series of
         Securities,  stating  that such Events of Default are  expressly  being
         included  solely for the benefit of such  series);  provided,  however,
         that  in  respect  of  any  such  additional  Events  of  Default  such
         supplemental  indenture  may provide for a  particular  period of grace
         after default  (which period may be shorter or longer than that allowed
         in the  case  of  other  defaults)  or  may  provide  for an  immediate
         enforcement  upon such default or may limit the  remedies  available to
         the Trustee  upon such default or may limit the right of the Holders of
         a majority in  aggregate  principal  amount of that or those  series of
         Securities  to which such  additional  Events of Default apply to waive
         such default; or

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

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

                           (6)      to secure the Securities; or

                           (7) to establish  the form or terms of  Securities of
         any series and any related  coupons as  permitted  by Sections  201 and
         301,  including the provisions  and  procedures  relating to Securities
         convertible into Common Shares or Preferred  Shares of the Company,  as
         the case may be; 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; 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  which shall not be
         inconsistent  with the  provisions  of this  Indenture;  provided  such
         provisions  shall not adversely  affect the interests of the Holders of
         Securities  of  any  series  or any  related  coupons  in any  material
         respect; or

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

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

                                       39

<PAGE>

                           (1) change the Stated  Maturity of the  principal  of
         (or premium, if any, on) or any installment of principal of or interest
         on, any Security; or reduce the principal amount thereof or the rate or
         amount of interest thereon or any Additional Amounts payable in respect
         thereof,  or any premium payable upon the redemption thereof, or change
         any  obligation of the Company to pay  Additional  Amounts  pursuant to
         Section 1007 (except as contemplated by Section 801(i) and permitted by
         Section  901(1)),  or reduce the amount of the principal of an Original
         Issue  Discount   Security  that  would  be  due  and  payable  upon  a
         declaration of acceleration of the Maturity thereof pursuant to Section
         502 or the amount  thereof  provable in bankruptcy  pursuant to Section
         504, or  adversely  affect any right of  repayment at the option of the
         Holder of any Security,  or change any Place of Payment  where,  or the
         currency or currencies, currency unit or units or composite currency or
         currencies  in which,  any  Security  or any  premium  or the  interest
         thereon  is  payable,  or impair  the right to  institute  suit for the
         enforcement of any such payment on or after the Stated Maturity thereof
         (or,  in the case of  redemption  or  repayment  at the  option  of the
         Holder,  on or after the Redemption  Date or the Repayment Date, as the
         case may be), or

                           (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  with  respect to such  series (or
         compliance  with  certain  provisions  of  this  Indenture  or  certain
         defaults  hereunder  and  their  consequences)  provided  for  in  this
         Indenture,  or reduce the  requirements  of Section  1504 for quorum or
         voting, or

                           (3) modify  any of the  provisions  of this  Section,
         Section 513 or Section 1008, except to increase the required percentage
         to effect such action or to provide that certain  other  provisions  of
         this Indenture  cannot be modified or waived without the consent of the
         Holder of each Outstanding Security affected thereby.

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

                  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.

                  SECTION  903.   Execution  of  Supplemental   Indentures.   In
executing,  or accepting  the  additional  trusts  created by, any  supplemental
indenture  permitted by this Article or the  modification  thereby of the trusts
created by this Indenture,  the Trustee shall be entitled to receive,  and shall
be fully  protected  in relying  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 and of any
coupon appertaining thereto shall be bound thereby.

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

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

                                       40
<PAGE>
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, if any, Interest
and Additional Amounts.  The Company covenants and agrees for the benefit of the
Holders of each series of Securities  that it will duly and  punctually  pay the
principal of (and premium,  if any) and interest on and any  Additional  Amounts
payable in respect of the Securities of that series in accordance with the terms
of such  series  of  Securities,  any  coupons  appertaining  thereto  and  this
Indenture.  Unless  otherwise  specified  as  contemplated  by Section  301 with
respect to any series of  Securities,  any  interest  due on and any  Additional
Amounts  payable in respect of Bearer  Securities on or before  Maturity,  other
than Additional  Amounts, if any, payable as provided in Section 1007 in respect
of principal of (or premium, if any, on) such a Security,  shall be payable only
upon  presentation  and  surrender  of the  several  coupons  for such  interest
installments as are evidenced thereby as they severally mature. Unless otherwise
specified  with respect to Securities of any series  pursuant to Section 301, at
the option of the Company, all payments of principal may be paid by check to the
registered  Holder of the Registered  Security or other person entitled  thereto
against surrender of such Security.

                  SECTION 1002.  Maintenance of Office or Agency.  If Securities
of a series are  issuable  only as  Registered  Securities,  the  Company  shall
maintain  in each Place of Payment  for any  series of  Securities  an office or
agency  where  Securities  of that series may be presented  or  surrendered  for
payment or conversion,  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.  If  Securities  of a series are issuable as Bearer  Securities,  the
Company will maintain: (A) in the Borough of Manhattan, The City of New York, an
office or agency where any Registered Securities of that series may be presented
or  surrendered  for payment or conversion,  where any Registered  Securities of
that series may be surrendered for registration of transfer, where Securities of
that series may be  surrendered  for  exchange,  where notices and demands to or
upon the Company in respect of the  Securities of that series and this Indenture
may be served and where Bearer Securities of that series and related coupons may
be presented  or  surrendered  for payment or  conversion  in the  circumstances
described in the following  paragraph  (and not  otherwise);  (B) subject to any
laws or regulations  applicable  thereto,  in a Place of Payment for that series
which is located outside the United States, an office or agency where Securities
of that series and related  coupons may be presented and surrendered for payment
(including  payment of any  Additional  Amounts  payable on  Securities  of that
series pursuant to Section 1007) or conversion;  provided,  however, that if the
Securities  of that series are listed on the  Luxembourg  Stock  Exchange or any
other stock exchange  located  outside the United States and such stock exchange
shall so require, the Company will maintain a Paying Agent for the Securities of
that series in Luxembourg or any other required city located  outside the United
States,  as the case may be, so long as the Securities of that series are listed
on such exchange; and (C) subject to any laws or regulations applicable thereto,
in a Place of Payment  for that  series  located  outside  the United  States an
office  or  agency  where  any  Registered  Securities  of  that  series  may be
surrendered for registration of transfer, where Securities of that series may be
surrendered for 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 each  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,  except that Bearer  Securities of that series and the related  coupons
may  be  presented  and  surrendered  for  payment  (including  payment  of  any
Additional  Amounts  payable on Bearer  Securities  of that  series  pursuant to
Section 1007) or conversion at the offices  specified in the Security in London,
England,  and the Company hereby  appoints the same as its agent to receive such
respective  presentations,  surrenders,  notices  and  demands,  and the Company
hereby  appoints  the  Trustee  its  agent to  receive  all such  presentations,
surrenders, notices and demands.

                  Unless  otherwise  specified  with  respect to any  Securities
pursuant  to Section  301,  no payment of  principal,  premium or interest on or
Additional  Amounts in respect of Bearer  Securities shall be made at any office
or agency of the Company in the United  States or by check mailed to any address
in the United States or by transfer to an

                                       41
<PAGE>
account maintained with a bank located in the United States; provided,  however,
that, if the Securities of a series are payable in Dollars, payment of principal
of and any premium and interest on any Bearer Security (including any Additional
Amounts  payable on Securities of such series pursuant to Section 1007) shall be
made at the office of the Company's Paying Agent in the City of Boston,  if (but
only if)  payment  in  Dollars of the full  amount of such  principal,  premium,
interest or Additional  Amounts,  as the case may be, at all offices or agencies
outside  the  United  States  maintained  for such  purpose  by the  Company  in
accordance with this Indenture,  is illegal or effectively precluded by exchange
controls or other similar restrictions.

                  The Company may from time to time  designate one or more other
offices or agencies  where the Securities of one or more series may be presented
or  surrendered  for any or all of such  purposes,  and  may  from  time to time
rescind  such  designation;  provided,  however,  that  no such  designation  or
rescission shall in any manner relieve the Company of its obligation to maintain
an office or agency in  accordance  with the  requirements  set forth  above for
Securities of any series for such purposes. The Company 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. Unless otherwise specified with
respect to any  Securities  pursuant to Section 301 with  respect to a series of
Securities,  the Company hereby designates as a Place of Payment for each series
of  Securities  the office or agency of the  Company in the City of Boston,  and
initially  appoints the Trustee at its Corporate Trust Office as Paying Agent in
such  city and as its  agent to  receive  all  such  presentations,  surrenders,
notices and demands.

                  Unless  otherwise  specified  with  respect to any  Securities
pursuant to Section 302, if and so long as the  Securities of any series (i) are
denominated in a Foreign  Currency or (ii) may be payable in a Foreign  Currency
or so long as it is required under any other provision of this  Indenture,  then
the Company will maintain with respect to each such series of Securities,  or as
so required, at least one exchange rate agent.

                  SECTION  1003.  Money for  Securities  Payments  to Be Held in
Trust. If the Company shall at any time act as its own Paying Agent with respect
to any series of any  Securities and any related  coupons,  it will, by no later
than 11:00 am (Boston  time) on each due date of the  principal of (and premium,
if any),  or  interest  on or  Additional  Amounts  in  respect  of,  any of the
Securities  of that series,  segregate  and hold in trust for the benefit of the
Persons entitled  thereto a sum in the currency or currencies,  currency unit or
units or composite currency or currencies in which the Securities of such series
are  payable  (except as  otherwise  specified  pursuant  to Section 301 for the
Securities of such series) sufficient to pay the principal (and premium, if any)
or interest or Additional  Amounts 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 and any related coupons, it will, on or before each due
date of the  principal of (and  premium,  if any),  or interest on or Additional
Amounts in respect of, any  Securities  of that  series,  deposit  with a Paying
Agent a sum (in the currency or currencies,  currency unit or units or composite
currency or currencies described in the preceding  paragraph)  sufficient to pay
the  principal  (and  premium,  if any) or interest or  Additional  Amounts,  so
becoming  due,  such  sum to be held in trust  for the  benefit  of the  Persons
entitled  to such  principal,  premium or  interest  or  Additional  Amounts 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  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)  hold  all  sums  held by it for the  payment  of
         principal of (and  premium,  if any) or interest on Securities in trust
         for the benefit of the Persons  entitled  thereto until such sums shall
         be paid to such Persons or otherwise disposed of as herein provided;

                           (2) give the  Trustee  notice of any  default  by the
         Company (or any other obligor upon the Securities) in the making of any
         such payment of principal (and premium, if any) or interest; and

                                       42
<PAGE>
                           (3) at any time  during the  continuance  of any such
         default, upon the written request of the Trustee,  forthwith pay to the
         Trustee all sums so held in trust by such Paying Agent.

                  The Company may at any time,  for the purpose of obtaining the
satisfaction  and discharge of this Indenture or for any other purpose,  pay, or
by Company Order direct any Paying Agent to pay, to the Trustee all sums held in
trust by the Company or such Paying  Agent,  such sums to be held by the Trustee
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 sums.

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

                  SECTION 1004. Existence. Subject to Article Eight, the Company
will do or cause to be done all things  necessary  to preserve  and keep in full
force  and  effect  its  existence,   rights  (declaration  and  statutory)  and
franchises;  provided,  however,  that the  Company  shall  not be  required  to
preserve  any  right  or  franchise  if  the  Board  shall  determine  that  the
preservation  thereof is no longer  desirable  in the conduct of the business of
the Company.

                  SECTION 1005. Provision of Financial  Information.  Whether or
not the Company is subject to Section 13 or 15(d) of the Securities Exchange Act
of 1934,  as  amended,  the  Company  will,  to the extent  permitted  under the
Securities Exchange Act of 1934, as amended, file with the Commission the annual
reports, quarterly reports and other documents which the Company would have been
required to file with the  Commission  pursuant to such Section 13 or 15(d) (the
"Financial  Statements")  if the Company were so subject,  such  documents to be
filed with the  Commission on or prior to the  respective  dates (the  "Required
Filing  Dates") by which the  Company  would have been  required so to file such
documents if the Company were so subject.

                  The Company  will also in any event (x) within 15 days of each
Required  Filing Date (i)  transmit by mail to all  Holders,  as their names and
addresses appear in the Security  Register,  without cost to such Holders copies
of the annual  reports and  quarterly  reports which the Company would have been
required  to file with the  Commission  pursuant  to  Section 13 or 15(d) of the
Securities Exchange Act of 1934, as amended, if the Company were subject to such
Sections, and (ii) file with the Trustee copies of the annual reports, quarterly
reports and other  documents  which the Company would have been required to file
with the Commission  pursuant to Section 13 or 15(d) of the Securities  Exchange
Act of 1934, as amended, if the Company were subject to such Sections and (y) if
filing such documents by the Company with the Commission is not permitted  under
the Securities  Exchange Act of 1934, as amended,  promptly upon written request
and payment of the reasonable cost of duplication and delivery, supply copies of
such documents to any prospective Holder.

                  SECTION  1006.  Statement as to  Compliance.  The Company will
deliver to the  Trustee,  within 120 days after the end of each fiscal  year,  a
brief  certificate from the principal  executive  officer,  principal  financial
officer  or  principal  accounting  officer  as to his or her  knowledge  of the
Company's compliance with all conditions and covenants under this Indenture and,
in the event of any noncompliance,  specifying such noncompliance and the nature
and status thereof.  For purposes of this Section 1006, such compliance shall be
determined  without regard to any period of grace or requirement of notice under
this Indenture.

                                       43
<PAGE>
                  SECTION  1007.  Additional  Amounts.  If any  Securities  of a
series  provide for the payment of Additional  Amounts,  the Company will pay to
the Holder of any  Security  of such series or any coupon  appertaining  thereto
Additional  Amounts as may be specified as contemplated by Section 301. Whenever
in this  Indenture  there is  mentioned,  in any  context  except in the case of
Section  502(1),  the payment of the principal of or any premium or interest on,
or in respect of, any Security of any series or payment of any related coupon or
the net proceeds received on the sale or exchange of any Security of any series,
such  mention  shall be deemed to include  mention of the payment of  Additional
Amounts provided by the terms of such series established pursuant to Section 301
to the extent that,  in such context,  Additional  Amounts are, were or would be
payable in respect  thereof  pursuant to such terms and  express  mention of the
payment of Additional Amounts (if applicable) in any provisions hereof shall not
be construed as excluding  Additional  Amounts in those provisions  hereof where
such express mention is not made.

                  Except as otherwise  specified as contemplated by Section 301,
if the Securities of a series provide for the payment of Additional  Amounts, at
least 20 days  prior to the first  Interest  Payment  Date with  respect to that
series of Securities (or if the Securities of that series will not bear interest
prior to Maturity, the first day on which a payment of principal and any premium
is made),  and at least 10 days prior to each date of payment of  principal  and
any premium or interest if there has been any change with respect to the matters
set forth in the below-mentioned Officers' Certificate, the Company will furnish
the Trustee and the Company's  principal Paying Agent or Paying Agents, if other
than the Trustee, with an Officers' Certificate instructing the Trustee and such
Paying  Agent or Paying  Agents  whether  such  payment of  principal of and any
premium or interest on the Securities of that series shall be made to Holders of
Securities  of that  series or any  related  coupons  who are not United  States
persons without  withholding  for or on account of any tax,  assessment or other
governmental  charge  described  in the  Securities  of the series.  If any such
withholding shall be required,  then such Officers' Certificate shall specify by
country the  amount,  if any,  required to be withheld on such  payments to such
Holders of Securities of that series or related coupons and the Company will pay
to the Trustee or such Paying Agent the Additional Amounts required by the terms
of such  Securities.  In the event that the Trustee or any Paying Agent,  as the
case may be,  shall not so receive  the  above-mentioned  certificate,  then the
Trustee  or such  Paying  Agent  shall be  entitled  (i) to assume  that no such
withholding or deduction is required with respect to any payment of principal or
interest with respect to any Securities of a series or related  coupons until it
shall  have  received  a  certificate  advising  otherwise  and (ii) to make all
payments of principal and interest with respect to the Securities of a series or
related coupons without  withholding or deductions until otherwise advised.  The
Company covenants to indemnify the Trustee and any Paying Agent for, and to hold
them  harmless  against,  any loss,  liability  or expense  reasonably  incurred
without  negligence  or bad faith on their part arising out of or in  connection
with  actions  taken or omitted by any of them or in reliance  on any  Officers'
Certificate  furnished  pursuant to this Section or in reliance on the Company's
not furnishing such an Officers' Certificate.

                  SECTION  1008.  Waiver of Certain  Covenants.  The Company may
omit in any particular instance to comply with any term,  provision or condition
set  forth  in  Sections  1004 or 1005,  if  before  or after  the time for such
compliance  the  Holders  of at least a  majority  in  principal  amount  of all
outstanding Securities of such series, by Act of such Holders, either waive such
compliance in such instance or generally waive  compliance with such covenant or
condition,  but no such  waiver  shall  extend to or  affect  such  covenant  or
condition except to the extent so expressly waived, and, until such waiver shall
become  effective,  the obligations of the Company and the duties of the Trustee
in respect of any such term,  provision or condition  shall remain in full force
and effect.

                                 ARTICLE ELEVEN

                            REDEMPTION OF SECURITIES

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

                  SECTION  1102.  Election  to Redeem;  Notice to  Trustee.  The
election  of the  Company  to redeem any  Securities  shall be  evidenced  by or
pursuant to a Board Resolution. In case of any redemption at the election of the
Company of less than all of the Securities of any series,  the Company shall, at
least 45 days prior to the giving of the

                                       44
<PAGE>
notice  of  redemption  in  Section  1104  (unless  a  shorter  notice  shall be
satisfactory to the Trustee),  notify the Trustee of such Redemption Date and of
the principal amount of Securities of such series to be redeemed. In the case of
any redemption of Securities  prior to the expiration of any restriction on such
redemption  provided  in the  terms  of such  Securities  or  elsewhere  in this
Indenture,  the Company shall furnish the Trustee with 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 issued on the same day
with the same terms are to be redeemed, the particular Securities to be redeemed
shall be  selected  not more than 60 days  prior to the  Redemption  Date by the
Trustee, from the Outstanding Securities of such series issued on such date with
the same terms not  previously  called  for  redemption,  by such  method as the
Trustee shall deem fair and  appropriate and which may provide for the selection
for redemption of portions  (equal to the minimum  authorized  denomination  for
Securities  of that series or any integral  multiple  thereof) of the  principal
amount of  Securities of such series of a  denomination  larger than the minimum
authorized denomination for Securities of that series.

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

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

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

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

                  All notices of redemption shall state:

                           (1) the Redemption Date,

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

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

                           (4) in case any  Security  is to be  redeemed in part
         only, the notice which relates to such Security shall state that on and
         after the Redemption Date, upon surrender of such Security,  the holder
         will  receive,   without  charge,  a  new  Security  or  Securities  of
         authorized  denominations  for the principal  amount thereof  remaining
         unredeemed,

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

                                       45

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

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

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

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

                           (10)  the CUSIP number of such Security, if any, and

                           (11) if  applicable,  that a Holder of Securities who
         desires  to  convert   Securities  for  redemption   must  satisfy  the
         requirements  for  conversion  contained in such  Securities,  the then
         existing  conversion  price  or rate,  and the  date and time  when the
         option to convert shall expire.

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

                  SECTION  1105.  Deposit of  Redemption  Price.  On or prior to
11:00 am (Boston time) on any  Redemption  Date,  the Company shall deposit with
the  Trustee  or with a Paying  Agent (or,  if the  Company is acting as its own
Paying  Agent,  which it may not do in the case of a sinking fund payment  under
Article  Twelve,  segregate  and hold in trust as provided  in Section  1003) an
amount  of  money  in the  currency  or  currencies,  currency  unit or units or
composite  currency or  currencies  in which the  Securities  of such series are
payable  (except  as  otherwise  specified  pursuant  to  Section  301  for  the
Securities  of  such  series)  sufficient  to  pay on the  Redemption  Date  the
Redemption  Price of, and  (except if the  Redemption  Date shall be an Interest
Payment Date) accrued  interest on, all the Securities or portions thereof 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  in the  currency or  currencies,  currency  unit or units or
composite  currency or  currencies  in which the  Securities  of such series are
payable  (except  as  otherwise  specified  pursuant  to  Section  301  for  the
Securities  of such  series)  (together  with accrued  interest,  if any, to the
Redemption Date), and from and after such date (unless the Company shall default
in the payment of the Redemption  Price and accrued  interest)  such  Securities
shall, if the same were interest-bearing, cease to bear interest and the coupons
for such  interest  appertaining  to any Bearer  Securities  so to be  redeemed,
except to the extent provided  below,  shall be void. Upon surrender of any such
Security  for  redemption  in  accordance  with said notice,  together  with all
coupons, if any,  appertaining  thereto maturing after the Redemption Date, such
Security  shall be paid by the Company at the  Redemption  Price,  together with
accrued  interest,  if any, to the  Redemption  Date;  provided,  however,  that
installments  of interest on Bearer  Securities  whose Stated  Maturity is on or
prior to the  Redemption  Date  shall be  payable  only at an  office  or agency
located outside the United States (except as otherwise provided in Section 1002)
and,  unless  otherwise  specified as  contemplated  by Section  301,  only upon
presentation  and surrender of coupons for such interest;  and provided  further
that, except as otherwise  provided with respect to Securities  convertible into
Common Shares or Preferred  Shares of the Company,  installments  of interest on
Registered  Securities  whose Stated  Maturity is on or prior to the  Redemption
Date  shall  be  payable  to the  Holders  of  such  Securities,  or one or more
Predecessor  Securities,  registered  as such at the  close of  business  on the
relevant  Record Dates  according to their terms and the  provisions  of Section
307.

                                       46
<PAGE>
                  If any Bearer Security surrendered for redemption shall not be
accompanied by all appurtenant  coupons maturing after the Redemption Date, such
Security may be paid after  deducting from the Redemption  Price an amount equal
to the face amount of all such missing coupons, or the surrender of such missing
coupon or  coupons  may be waived by the  Company  and the  Trustee  if there be
furnished to them such security or indemnity as they may require to save each of
them and any Paying Agent  harmless.  If thereafter  the Holder of such Security
shall  surrender to the Trustee or any Paying  Agent any such missing  coupon in
respect of which a  deduction  shall have been made from the  Redemption  Price,
such  Holder  shall be entitled  to receive  the amount so  deducted;  provided,
however, that interest represented by coupons shall be payable only at an office
or agency  located  outside the United States  (except as otherwise  provided in
Section 1002) and,  unless  otherwise  specified as contemplated by Section 301,
only upon presentation and surrender of those coupons.

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

                  SECTION  1107.  Securities  Redeemed in Part.  Any  Registered
Security  which is to be redeemed  only in part  (pursuant to the  provisions of
this Article or of Article  Twelve) shall be  surrendered  at a Place of Payment
therefor (with,  if the Company or the Trustee so requires,  due endorsement by,
or a written  instrument of transfer in form satisfactory to the Company and the
Trustee duly executed by, the Holder thereof or his attorney duly  authorized in
writing) and the Company shall execute and the Trustee  shall  authenticate  and
deliver to the Holder of such Security  without service charge a new Security or
Securities of the same series,  of any authorized  denomination  as requested by
such Holder in  aggregate  principal  amount  equal to and in  exchange  for the
unredeemed portion of the principal of the Security so surrendered.

                                 ARTICLE TWELVE

                                  SINKING FUNDS

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

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

                  SECTION  1202.  Satisfaction  of Sinking  Fund  Payments  with
Securities. The Company may, in satisfaction of all or any part of any mandatory
sinking fund payment with  respect to the  Securities  of a series,  (1) deliver
Outstanding  Securities  of such series  (other than any  previously  called for
redemption)  together in the case of any Bearer  Securities  of such series with
all unmatured coupons  appertaining thereto and (2) apply as a credit Securities
of such series  which have been  redeemed  either at the election of the Company
pursuant to the terms of such Securities or through the application of permitted
optional  sinking fund  payments  pursuant to the terms of such  Securities,  as
provided  for by the terms of such  Securities,  or which  have  otherwise  been
acquired by the Company;  provided that such  Securities so delivered or applied
as a credit have not been  previously  so  credited.  Such  Securities  shall be
received  and  credited  for  such  purpose  by the  Trustee  at the  applicable
Redemption Price specified in such Securities for redemption  through  operation
of the sinking fund and the amount of such mandatory  sinking fund payment shall
be reduced accordingly.

                  SECTION 1203.  Redemption of Securities  for Sinking Fund. Not
less than 60 days prior to each sinking fund payment date for  Securities of any
series,  the  Company  will  deliver  to the  Trustee an  Officers'  Certificate
specifying  the amount of the next  ensuing  mandatory  sinking fund payment for
that series pursuant to the terms of that

                                       47
<PAGE>
series, the portion thereof, if any, which is to be satisfied by payment of cash
in the currency or currencies,  currency unit or units or composite  currency or
currencies  in which the  Securities  of such  series  are  payable  (except  as
otherwise  specified  pursuant to Section 301 for the Securities of such series)
and the portion  thereof,  if any,  which is to be satisfied by  delivering  and
crediting  Securities of that series  pursuant to Section 1202, and the optional
amount,  if any, to be added in cash to the next ensuing  mandatory sinking fund
payment,  and will also deliver to the Trustee any Securities to be so delivered
and credited.  If such Officers' Certificate shall specify an optional amount to
be added in cash to the next ensuing mandatory sinking fund payment, the Company
shall thereupon be obligated to pay the amount therein specified.  Not less than
30 days before each such sinking fund payment date the Trustee  shall select the
Securities  to be redeemed  upon such  sinking  fund  payment date in the manner
specified in Section 1103 and cause notice of the redemption thereof to be given
in the name of and at the  expense  of the  Company in the  manner  provided  in
Section  1104.  Such  notice  having  been duly given,  the  redemption  of such
Securities  shall be made upon the terms and in the  manner  stated in  Sections
1106 and 1107.

                                ARTICLE THIRTEEN

                       REPAYMENT AT THE OPTION OF HOLDERS

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

                  SECTION  1302.  Repayment  of  Securities.  Securities  of any
series  subject to  repayment  in whole or in part at the option of the  Holders
thereof will,  unless  otherwise  provided in the terms of such  Securities,  be
repaid at a price equal to the principal amount thereof, together with interest,
if any,  thereon  accrued to the Repayment  Date specified in or pursuant to the
terms of such Securities.  The Company covenants that on or before the Repayment
Date it will 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 in the currency or currencies, currency unit or
units or composite currency or currencies in which the Securities of such series
are  payable  (except as  otherwise  specified  pursuant  to Section 301 for the
Securities of such series)  sufficient to pay the principal  (or, if so provided
by the terms of the Securities of any series, a percentage of the principal) of,
and (except if the  Repayment  Date shall be an Interest  Payment  Date) accrued
interest on, all the Securities or portions  thereof,  as the case may be, to be
repaid on such date.

                  SECTION  1303.  Exercise of Option.  Securities  of any series
subject  to  repayment  at the option of the  Holders  thereof  will  contain an
"Option to Elect Repayment" form on the reverse of such Securities. In order for
any Security to be repaid at the option of the Holder,  the Trustee must receive
at the Place of Payment therefor  specified in the terms of such Security (or at
such other place or places of which the  Company  shall from time to time notify
the Holders of such  Securities) not earlier than 60 days nor later than 30 days
prior to the  Repayment  Date (1) the Security so providing  for such  repayment
together with the "Option to Elect  Repayment"  form on the reverse thereof duly
completed by the Holder or by the Holder's  attorney duly  authorized in writing
or (2) a telegram,  telex, facsimile transmission or a letter from a member of a
national securities exchange, or the National Association of Securities Dealers,
Inc.  ("NASD"),  or a  commercial  bank or trust  company in the  United  States
setting  forth the name of the Holder of the Security,  the principal  amount of
the  Security,  the  principal  amount of the  Security to be repaid,  the CUSIP
number,  if any,  or a  description  of the tenor and terms of the  Security,  a
statement that the option to elect  repayment is being  exercised  thereby and a
guarantee that the Security to be repaid,  together with the duly completed form
entitled  "Option to Elect  Repayment" on the reverse of the  Security,  will be
received by the Trustee not later than the fifth  Business Day after the date of
such telegram, telex, facsimile transmission or letter; provided,  however, that
such telegram,  telex,  facsimile transmission or letter shall only be effective
if such  Security  and form duly  completed  are received by the Trustee by such
fifth Business Day. If less than the entire principal amount of such Security is
to be repaid in accordance with the terms of such Security, the principal amount
of such Security to be repaid,  in increments  of the minimum  denomination  for
Securities of such series, and the denomination or denominations of the Security
or Securities to be issued to the Holder for the portion of the principal amount
of such Security  surrendered that is not to be repaid,  must be specified.  The
principal  amount of any security  providing  for repayment at the option of the
Holder

                                       48
<PAGE>
thereof  may not be repaid in part if,  following  such  repayment,  the  unpaid
principal  amount of such  Security  would be less than the  minimum  authorized
denomination  of Securities of the series of which such Security to be repaid is
a part.  Except  as  otherwise  may be  provided  by the  terms of any  Security
providing  for  repayment at the option of the Holder  thereof,  exercise of the
repayment  option  by the  Holder  shall be  irrevocable  unless  waived  by the
Company.

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

                  If any Bearer Security  surrendered for repayment shall not be
accompanied by all appurtenant  coupons  maturing after the Repayment Date, such
Security  may be paid  after  deducting  from the  amount  payable  therefor  as
provided in Section  1302 an amount equal to the face amount of all such missing
coupons, or the surrender of such missing coupon or coupons may be waived by the
Company and the Trustee if there be furnished to them such security or indemnity
as they may  require  to save each of them and any  Paying  Agent  harmless.  If
thereafter  the Holder of such  Security  shall  surrender to the Trustee or any
Paying Agent any such missing coupon in respect of which a deduction  shall have
been made as provided in the preceding  sentence,  such Holder shall be entitled
to receive the amount so deducted;  provided, however, that interest represented
by coupons  shall be payable  only at an office or agency  located  outside  the
United  States  (except  as  otherwise  provided  in Section  1002) and,  unless
otherwise  specified as contemplated by Section 301, only upon  presentation and
surrender of those coupons.

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

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

                                ARTICLE FOURTEEN

                       DEFEASANCE AND COVENANT DEFEASANCE

                  SECTION 1401.  Applicability  of Article;  Company's Option to
Effect Defeasance or Covenant Defeasance. If, pursuant to Section 301, provision
is made for either or both of (a)  defeasance  of the  Securities of or within a
series under  Section 1402 or (b) covenant  defeasance  of the  Securities of or
within a series under Section 1403,

                                       49
<PAGE>
then the  provisions of such Section or Sections,  as the case may be,  together
with the other  provisions of this Article (with such  modifications  thereto as
may be specified pursuant to Section 301 with respect to any Securities),  shall
be applicable to such Securities and any coupons  appertaining  thereto, and the
Company may at its option by Board Resolution, at any time, with respect to such
Securities and any coupons appertaining thereto,  elect to have Section 1402 (if
applicable)  or Section  1403 (if  applicable)  be  applied to such  Outstanding
Securities  and any  coupons  appertaining  thereto  upon  compliance  with  the
conditions set forth below in this Article.

                  SECTION 1402.  Defeasance  and  Discharge.  Upon the Company's
exercise of the above  option  applicable  to this  Section  with respect to any
Securities  of or  within a  series,  the  Company  shall be deemed to have been
discharged from its obligations with respect to such Outstanding  Securities and
any coupons appertaining thereto on the date the conditions set forth in Section
1404  are  satisfied  (hereinafter,   "defeasance").   For  this  purpose,  such
defeasance  means that the Company  shall be deemed to have paid and  discharged
the entire  indebtedness  represented  by such  Outstanding  Securities  and any
coupons   appertaining   thereto,   which  shall  thereafter  be  deemed  to  be
"Outstanding"  only for the purposes of Section  1405 and the other  Sections of
this Indenture  referred to in clauses (A) and (B) below,  and to have satisfied
all of its other obligations under such Securities and any coupons  appertaining
thereto  and  this  Indenture   insofar  as  such  Securities  and  any  coupons
appertaining  thereto  are  concerned  (and the  Trustee,  at the expense of the
Company,  shall execute proper instruments  acknowledging the same),  except for
the  following  which shall  survive  until  otherwise  terminated or discharged
hereunder:  (A) the  rights of Holders of such  Outstanding  Securities  and any
coupons appertaining thereto to receive, solely from the trust fund described in
Section 1404 and as more fully set forth in such Section, payments in respect of
the principal of (and premium, if any) and interest,  if any, on such Securities
and any  coupons  appertaining  thereto  when  such  payments  are due,  (B) the
Company's  obligations  with respect to such Securities under Sections 305, 306,
1002 and 1003 and with respect to the payment of Additional  Amounts, if any, on
such Securities as contemplated by Section 1007, (C) the rights, powers, trusts,
duties and  immunities of the Trustee  hereunder and (D) this Article  Fourteen.
Subject to compliance with this Article  Fourteen,  the Company may exercise its
option under this Section notwithstanding the prior exercise of its option under
Section  1403 with  respect  to such  Securities  and any  coupons  appertaining
thereto.

                  SECTION 1403. Covenant Defeasance. Upon the Company's exercise
of the above option applicable to this Section with respect to any Securities of
or within a series,  the Company  shall be released from its  obligations  under
Sections  1004  and  1005  and,  if  specified  pursuant  to  Section  301,  its
obligations  under  any  other  covenant,   with  respect  to  such  Outstanding
Securities  and any  coupons  appertaining  thereto  on and  after  the date the
conditions  set forth in  Section  1404 are  satisfied  (hereinafter,  "covenant
defeasance"),  and such  Securities and any coupons  appertaining  thereto shall
thereafter be deemed to be not  "Outstanding" for the purposes of any direction,
waiver,  consent or declaration or Act of Holders (and the  consequences  of any
thereof) in connection with Sections 1004 and 1005 or such other  covenant,  but
shall continue to be deemed "Outstanding" for all other purposes hereunder.  For
this  purpose,  such  covenant  defeasance  means  that,  with  respect  to such
Outstanding  Securities and any coupons  appertaining  thereto,  the Company may
omit to  comply  with and  shall  have no  liability  in  respect  of any  term,
condition or  limitation  set forth in any such Section or such other  covenant,
whether directly or indirectly,  by reason of any reference  elsewhere herein to
any such  Section or such other  covenant or by reason of  reference in any such
Section or such other  covenant  to any other  provision  herein or in any other
document and such omission to comply shall not  constitute a default or an Event
of Default under Section 501(4) or 501(9) or otherwise,  as the case may be, but
except as specified  above,  the remainder of this Indenture and such Securities
and any coupons appertaining thereto shall be unaffected thereby.

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

                           (a) The Company shall  irrevocably  have deposited or
         caused to be deposited with the Trustee (or another trustee  satisfying
         the  requirements  of Section  607 who shall  agree to comply  with the
         provisions of this Article Fourteen applicable to it) as trust funds in
         trust for the purpose of making the  following  payments,  specifically
         pledged as security  for, and  dedicated  solely to, the benefit of the
         Holders of such Securities and any coupons appertaining thereto, (1) an
         amount in such  currency,  currencies  or  currency  unit in which such
         Securities and any coupons  appertaining  thereto are then specified as
         payable at Stated
                                       50
<PAGE>
         Maturity) which through the scheduled payment of principal and interest
         in respect  thereof in accordance  with their terms will  provide,  not
         later than one day before the due date of any payment of  principal  of
         (and premium, if any) and interest,  if any, on such Securities and any
         coupons appertaining thereto, or (2) Government  Obligations applicable
         to such Securities and coupons  appertaining thereto (determined on the
         basis of the  currency,  currencies  or  currency  unit in  which  such
         Securities  and  coupons  appertaining  thereto are then  specified  as
         payable at Stated  Maturity)  which  through the  scheduled  payment of
         principal  and  interest in respect  thereof in  accordance  with their
         terms will  provide,  not later than one day before the due date of any
         payment of principal of (and premium, if any) and interest,  if any, on
         such  Securities  and any  coupons  appertaining  thereto,  money in an
         amount, or (3) a combination thereof in an amount,  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 other  qualifying  trustee) to pay and  discharge,  (i) the
         principal  of (and  premium,  if any)  and  interest,  if any,  on such
         Outstanding  Securities  and any  coupons  appertaining  thereto on the
         Stated  Maturity of such  principal  or  installment  of  principal  or
         interest  and (ii) any  mandatory  sinking  fund  payments or analogous
         payments  applicable  to such  Outstanding  Securities  and any coupons
         appertaining  thereto  on the day on which  such  payments  are due and
         payable  in  accordance  with the terms of this  Indenture  and of such
         Securities and any coupons appertaining thereto.

                           (b) Such defeasance or covenant  defeasance shall not
         result in a breach or violation of, or constitute a default under, this
         Indenture or any other  material  agreement or  instrument to which the
         Company is a party or by which it is bound.

                           (c) No Event of Default or event which with notice or
         lapse of time or both would  become an Event of Default with respect to
         such  Securities  and  any  coupons  appertaining  thereto  shall  have
         occurred and be continuing  on the date of such deposit or,  insofar as
         Sections 501(6) and 501(7) are concerned, at any time during the period
         ending  on the  91st  day  after  the date of such  deposit  (it  being
         understood that this condition shall not be deemed  satisfied until the
         expiration of such period).

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

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

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

                                       51
<PAGE>
                           (g)  Notwithstanding  any  other  provisions  of this
         Section,  such defeasance or covenant  defeasance  shall be effected in
         compliance  with any  additional  or  substitute  terms,  conditions or
         limitations which may be imposed on the Company in connection therewith
         pursuant to Section 301.

                  SECTION 1405. Deposited Money and Government Obligations to Be
Held in Trust; Other Miscellaneous Provisions.  Subject to the provisions of the
last paragraph of Section 1003, all money and Government  Obligations  (or other
property as may be provided  pursuant to Section  301)  (including  the proceeds
thereof) deposited with the Trustee (or other qualifying  trustee,  collectively
for purposes of this Section 1405,  the  "Trustee")  pursuant to Section 1404 in
respect of any Outstanding Securities of any series and any coupons appertaining
thereto shall be held in trust and applied by the Trustee,  in  accordance  with
the provisions of such Securities and any coupons  appertaining thereto and this
Indenture,  to  the  payment,  either  directly  or  through  any  Paying  Agent
(including  the  Company  acting as its own  Paying  Agent) as the  Trustee  may
determine,  to the  Holders  of such  Securities  and any  coupons  appertaining
thereto of all sums due and to become due thereon in respect of  principal  (and
premium,  if any) and interest and  Additional  Amounts,  if any, but such money
need not be segregated from other funds except to the extent required by law.

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

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

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

                                 ARTICLE FIFTEEN

                        MEETINGS OF HOLDERS OF SECURITIES

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

                                       52
<PAGE>
                  SECTION  1502.  Call,  Notice and Place of  Meetings.  (a) The
Trustee  may at any time call a meeting of Holders of  Securities  of any series
for any purpose  specified in Section  1501, to be held at such time and at such
place in the City of Boston, or in London as the Trustee shall determine. Notice
of every meeting of Holders of Securities of any series,  setting forth the time
and the place of such  meeting  and in general  terms the action  proposed to be
taken at such meeting,  shall be given,  in the manner  provided in Section 106,
not less than 21 nor more than 180 days prior to the date fixed for the meeting.

                  (b) In case  at any  time  the  Company,  pursuant  to a Board
Resolution,  or  the  Holders  of at  least  25%  in  principal  amount  of  the
Outstanding  Securities of any series shall have requested the Trustee to call a
meeting of the Holders of Securities of such series for any purpose specified in
Section 1501, by written request  setting forth in reasonable  detail the action
proposed to be taken at the  meeting,  and the  Trustee  shall not have made the
first  publication of the notice of such meeting within 21 days after receipt of
such request or shall not thereafter  proceed to cause the meeting to be held as
provided herein, then the Company or the Holders of Securities of such series in
the amount above  specified,  as the case may be, may determine the time and the
place in the City of  Boston,  or in London for such  meeting  and may call such
meeting for such purposes by giving notice thereof as provided in subsection (a)
of this Section.

                  SECTION  1503.  Persons  Entitled to Vote at  Meetings.  To be
entitled to vote at any meeting of Holders of Securities of any series, a Person
shall be (1) a Holder of one or more Outstanding  Securities of such series,  or
(2) a Person  appointed  by an  instrument  in  writing as proxy for a Holder or
Holders of one or more  Outstanding  Securities of such series by such Holder or
Holders. The only Persons who shall be entitled to be present or to speak at any
meeting of Holders of Securities of any series shall be the Persons  entitled to
vote at such meeting and their counsel,  any  representatives of the Trustee and
its counsel and any representatives of the Company and its counsel.

                  SECTION 1504.  Quorum;  Action. The Persons entitled to vote a
majority in principal  amount of the  Outstanding  Securities  of a series shall
constitute  a quorum  for a meeting of Holders  of  Securities  of such  series;
provided,  however,  that if any  action  is to be  taken at such  meeting  with
respect to a consent or waiver which this  Indenture  expressly  provides may be
given by the Holders of not less than a specified percentage in principal amount
of the  Outstanding  Securities of a series,  the Persons  entitled to vote such
specified  percentage in principal amount of the Outstanding  Securities of such
series shall  constitute a quorum.  In the absence of a quorum within 30 minutes
after the time appointed for any such meeting, the meeting shall, if convened at
the request of Holders of Securities of such series, be dissolved.  In any other
case  the  meeting  may be  adjourned  for a  period  of not  less  than 10 days
determined  by the  chairman of the  meeting  prior to the  adjournment  of such
meeting.  In the  absence  of a  quorum  at any  such  adjourned  meeting,  such
adjourned meeting may be further adjourned for a period of not less than 10 days
as determined by the chairman of the meeting  prior to the  adjournment  of such
adjourned  meeting.  Notice of the reconvening of any adjourned meeting shall be
given as provided in Section 1502(a), except that such notice need be given only
once not less than five days prior to the date on which the meeting is scheduled
to be reconvened. Notice of the reconvening of any adjourned meeting shall state
expressly the  percentage,  as provided  above,  of the principal  amount of the
Outstanding Securities of such series which shall constitute a quorum.

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

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

                                       53
<PAGE>
                  Notwithstanding the foregoing provisions of this Section 1504,
if any action is to be taken at a meeting of Holders of Securities of any series
with respect to any request, demand, authorization,  direction, notice, consent,
waiver or other action that this Indenture expressly provides may be made, given
or taken by the Holders of a specified  percentage  in  principal  amount of all
Outstanding  Securities  affected thereby,  or of the Holders of such series and
one or more additional series:

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

                           (ii)  the   principal   amount  of  the   Outstanding
         Securities of such series that vote in favor of such  request,  demand,
         authorization, direction, notice, consent, waiver or other action shall
         be taken into  account in  determining  whether such  request,  demand,
         authorization,  direction,  notice, consent, waiver or other action has
         been made, given or taken under this Indenture.

                  SECTION  1505.  Determination  of Voting  Rights;  Conduct and
Adjournment of Meetings.  (a)  Notwithstanding any provisions of this Indenture,
the Trustee may make such  reasonable  regulations  as it may deem advisable for
any  meeting  of  Holders  of  Securities  of a series in regard to proof of the
holding of  Securities of such series and of the  appointment  of proxies and in
regard to the appointment and duties of inspectors of votes,  the submission and
examination  of proxies,  certificates  and other evidence of the right to vote,
and such other  matters  concerning  the conduct of the meeting as it shall deem
appropriate.  Except as otherwise permitted or required by any such regulations,
the holding of Securities shall be proved in the manner specified in Section 104
and the  appointment  of any proxy  shall be proved in the manner  specified  in
Section  104 or by  having  the  signature  of the  Person  executing  the proxy
witnessed or  guaranteed  by any trust  company,  bank or banker  authorized  by
Section 104 to certify to the holding of Bearer Securities. Such regulations may
provide that written instruments appointing proxies,  regular on their face, may
be presumed  valid and genuine  without  the proof  specified  in Section 104 or
other proof.

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

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

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

                  SECTION 1506. Counting Votes and Recording Action of Meetings.
The vote upon any  resolution  submitted to any meeting of Holders of Securities
of any series  shall be by  written  ballots on which  shall be  subscribed  the
signatures   of  the  Holders  of   Securities   of  such  series  or  of  their
representatives  by proxy and the  principal  amounts and serial  numbers of the
Outstanding Securities of such series held or represented by them. The permanent
chairman of the meeting  shall  appoint two  inspectors of votes who shall count
all votes cast at the meeting for or against any  resolution  and who shall make
and file with the secretary of the meeting  their  verified  written  reports in
duplicate of all votes cast at the meeting. A record, at least in duplicate,  of
the  proceedings of each meeting of Holders of Securities of any Series shall be
prepared  by the  secretary  of the  meeting and there shall be attached to said
record the  original  reports of the  inspectors  of votes on any vote by ballot
taken  thereat and  affidavits  by one or more persons  having  knowledge of the
fact,  setting  forth a copy of the notice of the meeting and showing  that said
notice was given as

                                       54
<PAGE>
provided in Section 1502 and, if  applicable,  Section 1504.  Each copy shall be
signed and verified by the affidavits of the permanent chairman and secretary of
the meeting and one such copy shall be  delivered  to the Company and another to
the Trustee to be preserved by the Trustee,  the latter to have attached thereto
the ballots  voted at the meeting.  Any record so signed and  verified  shall be
conclusive evidence of the matters therein stated.

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

                  IN WITNESS  WHEREOF,  the  parties  hereto  have  caused  this
Indenture to be duly  executed,  as an instrument  under seal, all as of the day
and year first above written.

                          HOSPITALITY PROPERTIES TRUST


                         By:___________________________
                                     Title:





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


                         By:___________________________
                                     Title:






                                       55

<PAGE>



                                    EXHIBIT A

                             FORMS OF CERTIFICATION


                                   EXHIBIT A-1

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


[Insert title or sufficient description of Securities to be delivered]

                  This is to certify that, as of the date hereof,  and except as
set forth below, the above-captioned  Securities held by you for our account (i)
are owned by person(s)  that are not citizens or residents of the United States,
domestic  partnerships,  domestic corporations or any estate or trust the income
of which is subject to United States federal income  taxation  regardless of its
source ("United States  person(s)"),  (ii) are owned by United States  person(s)
that are (a) foreign branches of United States financial institutions (financial
institutions,   as  defined  in  United  States  Treasury   Regulations  Section
2.165-12(c)(1)(v) are herein referred to as "financial institutions") purchasing
for their own account or for resale, or (b) United States person(s) who acquired
the Securities through foreign branches of United States financial  institutions
and who hold the Securities through such United States financial institutions on
the  date  hereof  (and in  either  case (a) or (b),  each  such  United  States
financial  institutions  hereby agrees,  on its own behalf or through its agent,
that you may advise Health and Rehabilitation Properties Trust or its agent that
such  financial  institutions  will  comply  with the  requirements  of  Section
165(j)(3)(A),  (B) or (C) of the United States Internal Revenue Code of 1986, as
amended, and the regulations thereunder), or (iii) are owned by United States or
foreign  financial  institution(s)  for purposes of resale during the restricted
period  (as  defined  in  United  States  Treasury  Regulations  Section  1.163-
5(c)(1)(i)(D)(7),  and, in addition,  if the owner is a United States or foreign
financial  institutions  described  in clause  (iii) above  (whether or not also
described in clause (i) or (ii)), this is to further certify that such financial
institutions  has not acquired the Securities for purposes of resale directly or
indirectly  to a United States person or to a person within the United States or
its possessions.

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

                  We  undertake  to advise you  promptly  by tested  telex on or
prior to the date on which you intend to submit your  certification  relating to
the  above-captioned  Securities  held by you for our account in accordance with
your Operating  Procedures if any applicable  statement herein is not correct on
such date,  and in the absence of any such  notification  it may be assumed that
this certification applies as of such date.

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

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


Dated:                   , 19

                                       A-1

<PAGE>



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

                                         [Name of Person Making Certification]


                                                             (Authorized
                                         Signatory)
                                         Name:
                                         Title:



                                       A-2

<PAGE>



                                   EXHIBIT A-2

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

                                   CERTIFICATE

[Insert title or sufficient description of Securities to be delivered]

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

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

                  We  further  certify  that  (i) we are  not  making  available
herewith for exchange (or, if relevant,  collection of any interest) any portion
of the temporary  global Security  representing the  above-captioned  Securities
excepted in the  above-referenced  certificates of Member Organizations and (ii)
as of the date  hereof we have not  received  any  notification  from any of our
Member  Organizations  to the effect  that the  statements  made by such  Member
Organizations  with  respect to any portion of the part  submitted  herewith for
exchange  (or, if relevant,  collection  of any interest) are no longer true and
cannot be relied upon as of the date hereof.

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


Date:                19

[To be dated no  earlier  than
the   Exchange   Date  or  the
relevant Interest Payment Date
occurring    prior    to   the
Exchange Date, as applicable]

                                             [Morgan Guaranty Trust Company
                                               New York, Brussels Office,]

                                       A-3

<PAGE>


                                           as Operator of the Euroclear System
                                           [Cedel S.A.]


                                       A-4



                                                                     Exhibit 5.1



                                SULLIVAN & WORCESTER LLP
                                ONE POST OFFICE SQUARE
                              BOSTON, MASSACHUSETTS 02109
                                    (617) 338-2800
                                 FAX NO. 617-338-2880
    IN WASHINGTON, D.C.                                    IN NEW YORK CITY
1025 CONNECTICUT AVENUE, N.W.                              767 THIRD AVENUE
   WASHINGTON, D.C. 20036                              NEW YORK, NEW YORK 10017
      (202) 775-8190                                         (212) 486-8200
   FAX NO. 202-293-2275                                    FAX NO. 212-758-2151



                                             December 30, 1997


Hospitality Properties Trust
400 Centre Street
Newton, Massachusetts 02158

Ladies and Gentlemen:

         In connection with the registration by Hospitality  Properties Trust, a
Maryland real estate  investment trust (the "Company"),  of up to $1,956,262,500
in aggregate  amount of (i) one or more series of debt securities of the Company
(the  "Debt  Securities"),  (ii)  one or more  series  of  preferred  shares  of
beneficial interest, without par value, of the Company (the "Preferred Shares"),
(iii) depositary shares representing whole or fractional  interests in Preferred
Shares   ("Depositary   Shares")  evidenced  by  depositary   receipts  therefor
("Depositary  Receipts"),  (iv) common shares of beneficial  interest,  $.01 par
value,  of the Company (the "Common  Shares"),  or (v) warrants to purchase Debt
Securities, Preferred Shares, Depositary Shares or Common Shares (the "Warrants"
and, together with the Debt Securities,  Preferred Shares and Common Shares, the
"Registered Securities"),  for offering by the Company from time to time, as set
forth in the final prospectus which forms a part of the Registration  Statement,
as defined below (the "Prospectus"), and as to be set forth in one or more final
supplements to the Prospectus (each, a "Prospectus  Supplement"),  the following
opinion is furnished to the Company to be filed with the Securities and Exchange
Commission  (the  "Commission")  as Exhibit  5.1 to the  Company's  Registration
Statement  on Form S-3,  under  the  Securities  Act of 1933,  as  amended  (the
"Securities  Act"),  to be filed on or about  the date  hereof.  As used in this
opinion, the term "Registration  Statement" means, unless otherwise stated, such
Registration  Statement,  as amended when declared  effective by the  Commission
(including  any  necessary   post-effective   amendments   thereto);   the  term
"Convertible  Registered  Securities"  means  Registered  Securities  which  are
convertible   into,   exchangeable  for  or  exercisable  for  other  Registered
Securities, and the term "Underlying Registered Securities" means any Registered
Securities  which  are  issuable  upon  conversion,   exchange  or  exercise  of
Convertible Registered Securities.



<PAGE>



Hospitality Properties Trust
December 30, 1997
Page 2



         In  connection  with this  opinion,  we have examined and relied upon a
copy of the  Registration  Statement to be filed with the Commission on or about
the date hereof.  We have also  examined and relied upon  originals or copies of
such records, agreements and instruments of the Company,  certificates of public
officials  and of officers of the Company and such other  documents and records,
and such matters of law, as we have deemed necessary as a basis for the opinions
hereinafter  expressed.  In  making  such  examination,   we  have  assumed  the
genuineness  of all  signatures,  the legal  capacity  of natural  persons,  the
authenticity of all documents submitted to us as originals and the conformity to
the  originals of all documents  submitted to us as copies,  which facts we have
not independently verified.

         We have necessarily  assumed in connection with the opinions  expressed
below that the terms and conditions of the Registered Securities and any related
indentures,  agreements and  instruments,  except to the extent described in the
Registration Statement and the form of preliminary prospectus contained therein,
as originally  filed,  will be, and that any related  proceedings of the Company
conducted  after the date hereof will be conducted,  (i) in accordance  with all
applicable laws and the Company's Amended and Restated  Declaration of Trust (as
currently  in effect,  the  "Declaration  of Trust") and By-laws and (ii) not in
conflict with any  contractual  or other  restrictions  which are binding on the
Company,  and that,  without  limiting  the  generality  of the  foregoing,  any
agreements or instruments that are hereafter  required to be filed as an exhibit
to the Registration  Statement will be properly filed by an amendment thereto or
by the filing of a Form 8-K by the Company under the Securities  Exchange Act of
1934, as amended,  and properly  incorporated  by reference in the  Registration
Statement,  as permitted by the Securities Act and the rules and  regulations of
the Commission  thereunder.  We have also necessarily assumed in connection with
such  opinions  with  respect to any Common  Shares or  Preferred  Shares or any
Convertible  Registered Securities as to which Common Shares or Preferred Shares
are the related Underlying Securities that, at the time of the issuance thereof,
the Company will have a sufficient  number of shares of authorized Common Shares
or Preferred  Shares,  as the case may be, under the  Declaration  of Trust that
will be unissued and not otherwise reserved for issuance.

         To the extent that the  obligations of the Company under each Indenture
or any Warrant Agreement or Depositary  Agreement (each as defined below) may be
dependent  upon such matters,  we have assumed for purposes of this opinion that
each Trustee and each Warrant Agent and  Depositary  (each as defined below) are
duly  organized,  validly  existing and in good standing under the laws of their
respective  jurisdictions of  organization,  and are duly qualified to engage in
the activities contemplated by, and have the requisite  organizational and legal
power  and  authority  to  perform  their  respective  obligations  under,  each
Indenture, Warrant Agreement and Depositary Agreement to which they are parties,
that each Trustee, Warrant Agent and Depositary will be in compliance, generally
with


<PAGE>



Hospitality Properties Trust
December 30, 1997
Page 3



respect to acting as a trustee or agent under each applicable Indenture, Warrant
Agreement and Depositary  Agreement,  with all applicable laws and  regulations,
and that each Indenture and any Warrant Agreement and Depositary  Agreement will
be the valid and binding  agreements of each party  thereto  (other than, in the
case of an indenture in the form filed as Exhibit 4.1 or 4.2 to the Registration
Statement when appropriately completed,  the Company),  enforceable against such
parties in accordance with their respective terms.

         We express no opinion herein as to the laws of any  jurisdiction  other
than the Commonwealth of Massachusetts and the federal law of the United States,
and we express no opinion as to state  securities  or blue sky laws.  Insofar as
this opinion  involves  matters of Maryland law we have,  with your  permission,
relied solely on the opinion of Ballard Spahr Andrews & Ingersoll dated December
30, 1997, a copy of which we understand  you are filing  herewith as Exhibit 5.2
to the  Registration  Statement,  and our opinion is subject to the  exceptions,
qualifications and limitations therein expressed.

         Our  opinions  set forth below with  respect to the validity or binding
effect of any  security or  obligation  are subject to (i)  limitations  arising
under applicable bankruptcy, insolvency, reorganization,  fraudulent conveyance,
moratorium or other  similar laws  affecting  the  enforcement  generally of the
rights and  remedies of  creditors  and secured  parties or the  obligations  of
debtors,  (ii) general principles of equity (regardless of whether considered in
a proceeding at law or in equity), including, without limitation, the discretion
of any court of  competent  jurisdiction  in granting  specific  performance  or
injunctive or other equitable  relief,  and (iii) an implied duty on the part of
the  party  seeking  to  enforce  rights or  remedies  to take  action  and make
determinations on a reasonable basis and in good faith to the extent required by
applicable law.

         Based on and subject to the  foregoing,  we are of the opinion that, as
of the date hereof:

                  1. Each series of Debt  Securities  will be validly issued and
         binding obligations of the Company when (i) the Registration  Statement
         shall have become effective under the Securities Act and the indentures
         filed as Exhibit 4.1 and 4.2 to the Registration  Statement,  including
         any necessary supplemental indenture, or any other indenture, including
         any necessary  supplemental  indenture thereto,  filed as an exhibit to
         the  Registration  Statement,  as  the  case  may  be  (the  applicable
         indenture, as so filed and supplemented,  the "Indenture"),  shall have
         been qualified under the Trust  Indenture Act of 1939, as amended,  and
         the Indenture shall have been duly  authorized,  executed and delivered
         by the Company and a trustee named thereunder (the  "Trustee"),  (ii) a
         Prospectus Supplement with respect to such Debt Securities


<PAGE>



Hospitality Properties Trust
December 30, 1997
Page 4



         shall have been filed with the  Commission  pursuant  to Rule 424 under
         the  Securities  Act,  (iii) the Company's  Board of Trustees or a duly
         authorized  committee thereof shall have duly adopted final resolutions
         (the "Final Debt  Resolutions")  authorizing  the  issuance and sale of
         such Debt Securities as contemplated by the Registration Statement, the
         Prospectus, the applicable Prospectus Supplement and the Indenture, and
         (iv) such series of Debt  Securities  shall have been (A) duly executed
         by the  Company  and  authenticated  by the  Trustee as provided in the
         Indenture and the Final Debt  Resolutions  and (B) shall have been duly
         delivered  to the  purchasers  thereof  against  payment  of the agreed
         consideration therefor, as provided in the Registration Statement,  the
         Prospectus, the applicable Prospectus Supplement, the Indenture and the
         Final  Debt  Resolutions.   If  such  Debt  Securities  are  Underlying
         Registered  Securities,  the  opinion  set forth in this  paragraph  is
         subject  to the  further  condition  that  the  Convertible  Registered
         Securities  relating  to  such  Debt  Securities,  at the  time  of the
         issuance thereof and of the conversion,  exchange or exercise  thereof,
         are validly issued, fully paid and non-assessable by the Company or are
         validly issued and binding obligations of the Company, as applicable.

                  2. Each series of  Preferred  Shares  will be validly  issued,
         fully paid and  non-assessable by the Company when (i) the Registration
         Statement shall have become  effective under the Securities Act, (ii) a
         Prospectus  Supplement with respect to such Preferred Shares shall have
         been  filed  with  the  Commission  pursuant  to  Rule  424  under  the
         Securities  Act,  (iii)  the  Company's  Board  of  Trustees  or a duly
         authorized  committee thereof shall have duly adopted final resolutions
         (the "Final Preferred Shares Resolutions") authorizing the issuance and
         sale of such  Preferred  Shares  as  contemplated  by the  Registration
         Statement,  the Prospectus and the  applicable  Prospectus  Supplement,
         (iv) Articles  Supplementary  to the Declaration of Trust setting forth
         the terms of such series of Preferred Shares,  including establishing a
         sufficient   quantity   thereof  and  setting  forth  the  preferences,
         restrictions, limitations as to dividends, qualifications and terms and
         conditions of redemption,  consistent with the Final  Preferred  Shares
         Resolutions,  shall have been duly executed and filed with and accepted
         for record by the Department of  Assessments  and Taxation of the State
         of Maryland,  and (v)  certificates  evidencing  such Preferred  Shares
         shall have been duly  executed,  countersigned  and registered and duly
         delivered  to the  purchasers  thereof  against  payment  of the agreed
         consideration  therefor  (and in any event an amount at least  equal to
         the par  value,  if any,  thereof),  as  provided  in the  Registration
         Statement, the Prospectus, the applicable Prospectus Supplement and the
         Final  Preferred  Shares  Resolutions.  If such  Preferred  Shares  are
         Underlying  Registered  Securities,  the  opinion  set  forth  in  this
         paragraph  is subject to the  further  condition  that the  Convertible
         Registered Securities relating to such Preferred Shares, at the


<PAGE>



Hospitality Properties Trust
December 30, 1997
Page 5



         time  of  the  issuance  thereof  and of the  conversion,  exchange  or
         exercise thereof,  are validly issued, fully paid and non-assessable by
         the  Company or are  validly  issued  and  binding  obligations  of the
         Company, as applicable.

                  3. The Depositary  Shares will be validly  issued,  fully paid
         and  non-assessable by the Company and the Depositary  Receipts will be
         validly  issued  and will  entitle  the  holders  thereof to the rights
         specified therein and in the applicable Depositary Agreement,  when (i)
         the  conditions  set forth in  paragraph  2 above  with  respect to the
         related  Preferred Shares are met, (ii) the Company's Board of Trustees
         or  a  duly  authorized  committee  thereof  shall  have  duly  adopted
         resolutions (the "Final Depositary Shares  Resolutions")  approving one
         or more depositary  agreements,  including a form of Depositary Receipt
         set forth therein or related thereto (each, a "Depositary  Agreement"),
         relating to such Depositary Shares, between the Company and a financial
         institution  identified  therein as depositary  (each, a "Depositary"),
         (iii) the applicable Depositary Agreement shall have been duly executed
         and  delivered  by the  Company  and the  Depositary,  (iv) the related
         Preferred  Shares shall have been duly  deposited  with the  Depositary
         under  the  Depositary  Agreement  and  (v) the  applicable  Depositary
         Receipts shall have been duly executed by the Depositary as provided in
         the applicable  Depositary  Agreement and the Final  Depositary  Shares
         Resolutions  and  registered  and shall have been duly delivered to the
         purchasers   thereof  against  payment  of  the  agreed   consideration
         therefor,  as provided in the Registration  Statement,  the Prospectus,
         the  applicable  Prospectus   Supplement,   the  applicable  Depositary
         Agreement and the Final Depositary Shares Resolutions.

                  4. The Common  Shares will be validly  issued,  fully paid and
         non-assessable by the Company when (i) the Registration Statement shall
         have become  effective  under the  Securities  Act,  (ii) a  Prospectus
         Supplement  with  respect to such Common  Shares  shall have been filed
         with the  Commission  pursuant  to Rule 424 under the  Securities  Act,
         (iii) the Company's  Board of Trustees or a duly  authorized  committee
         thereof  shall have duly adopted final  resolutions  (the "Final Common
         Shares  Resolutions")  authorizing the issuance and sale of such Common
         Shares as contemplated by the  Registration  Statement,  the Prospectus
         and  the  applicable  Prospectus  Supplement,   and  (iv)  certificates
         evidencing   such  Common   Shares  shall  have  been  duly   executed,
         countersigned  and  registered  and duly  delivered  to the  purchasers
         thereof  against payment of the agreed  consideration  therefor (and in
         any  event an  amount  at least  equal to the par  value  thereof),  as
         provided in the Registration Statement, the Prospectus,  the applicable
         Prospectus Supplement and the Final Common Shares Resolutions.  If such
         Common Shares are  Underlying  Registered  Securities,  the opinion set
         forth in this paragraph is subject to the further


<PAGE>



Hospitality Properties Trust
December 30, 1997
Page 6



         condition that the Convertible  Registered  Securities relating to such
         Common  Shares,  at  the  time  of  the  issuance  thereof  and  of the
         conversion,  exchange or exercise  thereof,  are validly issued,  fully
         paid and  non-assessable  by the  Company  or are  validly  issued  and
         binding obligations of the Company, as applicable.

                  5. The Warrants will be duly authorized and validly issued and
         binding obligations of the Company when (i) the Registration  Statement
         shall have become effective under the Securities Act, (ii) a Prospectus
         Supplement with respect to such Warrants shall have been filed with the
         Commission  pursuant to Rule 424 under the  Securities  Act,  (iii) the
         Company's  Board of Trustees  or a duly  authorized  committee  thereof
         shall  have  duly  adopted  final   resolutions   (the  "Final  Warrant
         Resolutions")  authorizing  the issuance  and sale of such  Warrants as
         contemplated  by the  Registration  Statement,  the  Prospectus and the
         applicable  Prospectus  Supplement  and  approving  one or more warrant
         agreements,  including a form of warrant  set forth  therein or related
         thereto  (each,  a  "Warrant  Agreement"),  establishing  the terms and
         conditions  of such  Warrants,  between  the  Company  and a  financial
         institution  identified  therein as  warrant  agent  (each,  a "Warrant
         Agent"),  (iv) the applicable  Warrant  Agreement  shall have been duly
         executed and  delivered by the Company and the Warrant  Agent,  and (v)
         such  Warrants  shall  have  been  duly  executed  by the  Company  and
         authenticated  by the  Warrant  Agent  as  provided  in the  applicable
         Warrant Agreement and the Final Warrant  Resolutions and registered and
         shall  have been  duly  delivered  to the  purchasers  thereof  against
         payment  of the  agreed  consideration  therefor,  as  provided  in the
         Registration  Statement,  the  Prospectus,  the  applicable  Prospectus
         Supplement,  the  applicable  Warrant  Agreement  and the Final Warrant
         Resolutions. If such Warrants are Underlying Registered Securities, the
         opinion set forth in this paragraph is subject to the further condition
         that the Convertible  Registered  Securities relating to such Warrants,
         at the time of the issuance thereof and of the conversion,  exchange or
         exercise thereof,  are validly issued, fully paid and non-assessable by
         the  Company or are  validly  issued  and  binding  obligations  of the
         Company, as applicable.

         With  respect  to  personal  liability  attaching  to  the  holders  of
Preferred  Shares,  Depositary  Shares or  Common  Shares,  we note the  matters
described in the Company's  Registration  Statement on Form 8-A dated August 14,
1995,  with respect to Common  Shares and  incorporated  by  reference  into the
Prospectus forming a part of the Registration Statement.



<PAGE>



Hospitality Properties Trust
December 30, 1997
Page 7


         All of the  opinions  set  forth  herein  are  rendered  as of the date
hereof, and we assume no obligation to update such opinions to reflect any facts
or circumstances which may hereafter come to our attention or any changes in the
law which may hereafter occur.

         We hereby  consent to the  filing of this  opinion as an exhibit to the
Registration  Statement  and to the  reference  to our  firm  in the  Prospectus
forming a part of the Registration  Statement. In giving such consent, we do not
thereby  admit that we come  within the  category  of persons  whose  consent is
required  under Section 7 of the Act or under the rules and  regulations  of the
Commission promulgated thereunder.

                                                  Very truly yours,

                                                  /s/ SULLIVAN & WORCESTER LLP

                                                  SULLIVAN & WORCESTER LLP





                                                                     Exhibit 5.2


                [LETTERHEAD OF BALLARD SPAHR ANDREWS & INGERSOLL]








                                                 December 30, 1997

Hospitality Properties Trust
400 Centre Street
Newton, Massachusetts 02158

Sullivan & Worcester LLP
One Post Office Square
Boston, Massachusetts  02109

         Re:      Registration Statement on Form S-3, to be
                  filed with Securities and Exchange Commission on
                  December 31, 1997

Ladies and Gentlemen:

                  We have served as Maryland  counsel to Hospitality  Properties
Trust, a Maryland real estate  investment trust (the  "Company"),  in connection
with  certain  matters of Maryland  law arising out of the  registration  of the
following   securities   having  an   aggregate   initial   offering   price  of
$1,956,262,500  (collectively,  the  "Securities"):  (a) debt  securities of the
Company ("Debt Securities"),  including Debt Securities which may be issued upon
the exercise of Warrants (as defined herein), (b) preferred shares of beneficial
interest,  without par value,  of the Company  ("Preferred  Shares"),  including
Preferred  Shares  which may be issued upon the exercise of Warrants (as defined
herein),  (c) depositary shares  representing  whole or fractional  interests in
Preferred Shares ("Depositary Shares"), including Depositary Shares which may be
issued  upon  the  exercise  of  Warrants  (as  defined  herein),  evidenced  by
depositary receipts therefor, (d) common shares of beneficial interest, $.01 par
value per share, of the Company ("Common Shares"), including Common Shares which
may be issued upon the exercise of Warrants (as defined herein) and (e) warrants
to purchase  Debt  Securities,  Preferred  Shares,  Depositary  Shares or Common
Shares ("Warrants"), covered by the above referenced Registration Statement, and
all amendments thereto (the "Registration Statement"), filed by the Company with
the


<PAGE>


Hospitality Properties Trust
December 30, 1997
Page 2

Securities and Exchange  Commission (the "Commission")  under the Securities Act
of 1933,  as amended  (the "1933 Act").  Capitalized  terms used but not defined
herein shall have the meanings given to them in the Registration Statement.

                  In connection with our  representation of the Company and as a
basis for the opinion  hereinafter  set forth,  we have examined  originals,  or
copies certified or otherwise  identified to our satisfaction,  of the following
documents (collectively, the "Documents"):

         1.  The  Registration  Statement  and the  related  form of  prospectus
included therein in the form in which it was transmitted to the Commission under
the 1933 Act;

         2. The Amended and Restated  Declaration of Trust,  as amended,  of the
Company (the "Declaration of Trust"), certified as of a recent date by the State
Department of Assessments and Taxation of Maryland (the "SDAT");

         3. The  Bylaws of the  Company,  certified  as of a recent  date by its
Secretary;

         4.  Resolutions  adopted by the Board of Trustees  of the Company  (the
"Board")  relating to the  registration  of the  Securities,  certified  as of a
recent date by the Secretary of the Company (the "Resolutions");

         5. A  certificate  of the SDAT as to the good  standing of the Company,
dated as of a recent date;

         6. A certificate executed by the Secretary of the Company,  dated as of
a recent date; and

         7. Such other  documents  and  matters as we have deemed  necessary  or
appropriate  to express  the opinion  set forth in this  letter,  subject to the
assumptions, limitations and qualifications stated herein.

         In expressing the opinion set forth below, we have assumed,  and so far
as is known to us there are no facts inconsistent with, the following:

         1. Each individual executing any of the Documents, whether on behalf of
such individual or another person, is legally competent to do so.


<PAGE>


Hospitality Properties Trust
December 30, 1997
Page 3

         2. Each individual  executing any of the Documents on behalf of a party
(other than the Company) is duly authorized to do so.

         3. Each of the parties  (other than the Company)  executing  any of the
Documents has duly and validly  executed and delivered  each of the Documents to
which such party is a signatory,  and such party's obligations set forth therein
are legal,  valid and binding and are  enforceable in accordance with all stated
terms.

         4. All  Documents  submitted  to us as  originals  are  authentic.  All
Documents  submitted  to us as certified or  photostatic  copies  conform to the
original documents. All signatures on all such Documents are genuine. All public
records  reviewed or relied  upon by us or on our behalf are true and  complete.
All statements and information contained in the Documents are true and complete.
There are no oral or written  modifications or amendments to the Documents,  and
there has been no waiver of any of the  provisions of the Documents by action or
omission of the parties or otherwise.

         5. The Securities will not be issued or transferred in violation of any
restriction or limitation contained in the Declaration of Trust.

         6. All Preferred  Shares will be evidenced by certificates  meeting the
requirements of Section 8-203(d) of the Corporations and Associations Article of
the Annotated Code of Maryland.

         7. In  accordance  with the  Resolutions,  the issuance of, and certain
terms of, the  Securities  to be issued by the Company from time to time will be
approved by the Board or a duly authorized  committee thereof in accordance with
Title 8 of the Corporations  and  Associations  Article of the Annotated Code of
Maryland (with such approval referred to herein as the "Trust Proceedings").

         The phrase  "known to us" is limited to the actual  knowledge,  without
independent  inquiry,  of the  lawyers  at our  firm who  have  performed  legal
services in connection with the issuance of this opinion.

         Based upon the foregoing,  and subject to the assumptions,  limitations
and qualifications stated herein, it is our opinion that:



<PAGE>


Hospitality Properties Trust
December 30, 1997
Page 4

         1. The  Company  is a real  estate  investment  trust  duly  formed and
existing under and by virtue of the laws of the State of Maryland and is in good
standing with the SDAT.

         2.  Upon  the  completion  of all  Trust  Proceedings  relating  to the
Securities that are Debt Securities, the issuance of the Debt Securities and the
execution by the Company of the applicable  Indenture will be duly authorized by
all necessary trust action.

         3.  Upon  the  completion  of all  Trust  Proceedings  relating  to the
Securities that are Preferred  Shares (the "Preferred  Securities")  and the due
execution,  countersignature  and delivery of certificates  evidencing Preferred
Securities  and assuming that the sum of (a) all  Preferred  Shares issued as of
the date hereof, (b) any Preferred Shares issued between the date hereof and the
date on which any of the Preferred Securities are actually issued (not including
any of the  Preferred  Securities)  and (c) the  Preferred  Securities  will not
exceed the total number of Preferred  Shares that the Company is then authorized
to issue,  the Preferred  Securities  will be duly  authorized  and, when and if
delivered  against  payment  therefor in accordance with the Resolutions and the
Trust Proceedings, will be validly issued fully paid and nonassessable.

         4.  Upon  the  completion  of all  Trust  Proceedings  relating  to the
Securities  that  are  Common  Shares  (the  "Common  Securities")  and  the due
execution,  countersignature  and  delivery of  certificates  evidencing  Common
Securities  and assuming  that the sum of (a) all Common Shares issued as of the
date hereof,  (b) any Common Shares issued  between the date hereof and the date
on which any of the Common  Securities are actually issued (not including any of
the Common  Securities) and (c) the Common  Securities will not exceed the total
number of Common Shares that the Company is then authorized to issue, the Common
Securities will be duly  authorized  and, when and if delivered  against payment
therefor in accordance with the Resolutions and the Trust  Proceedings,  will be
validly issued fully paid and nonassessable.

         5.  Upon  the  completion  of all  Trust  Proceedings  relating  to the
Securities  that  are  Warrants,  the  issuance  of the  Warrants  will  be duly
authorized by all  necessary  trust action and, when duly executed and delivered
by the Company  against  payment  therefor and  countersigned  by the applicable
Warrant Agent in accordance with the applicable Warrant Agreement and


<PAGE>


Hospitality Properties Trust
December 30, 1997
Page 5

delivered  to and paid  for by the  purchasers  of the  Warrants  in the  manner
contemplated  by the  Registration  Statement  and/or the applicable  Prospectus
Supplement, the Warrants will be validly issued.

         The foregoing  opinion is limited do the laws of the State of Maryland,
and we do not express any opinion herein  concerning any other law or concerning
any  document  not  governed by the laws of the State of  Maryland.  The opinion
expressed herein is subject to the effect of judicial decisions which may permit
the introduction of parol evidence to modify the terms or the  interpretation of
agreements. We express no opinion as to compliance with the securities (or "blue
sky") laws of the State of Maryland.

         We assume no obligation to  supplement  this opinion if any  applicable
law changes  after the date hereof of if we become  aware of any fact that might
change the opinion expressed herein after the date hereof.

         This  opinion  is  being  furnished  to  your  for  submission  to  the
Commission as an exhibit to the Registration Statement and, accordingly, may not
be relied upon by,  quoted in any manner to, or delivered to any other person or
entity without, in each instance, our prior written consent.

         We hereby  consent to the  filing of this  opinion as an exhibit to the
Registration Statement and to the use of the name of our firm therein. In giving
this  consent,  we do not admit that we are within the category of persons whose
consent is required by Section 7 of the 1933 Act.

                                         Very truly yours,


                                         /s/ BALLARD SPAHR ANDREWS & INGERSOLL
                                         BALLARD SPAHR ANDREWS & INGERSOLL


<TABLE>
<CAPTION>

                                                                                                         Exhibit 12

                                              Hospitality Properties Trust
                                   Computation of Ratio of Earnings to Fixed Charges
                                          (in thousands, except ratio amounts)


                                  For the period
                                 February 7, 1995      For the fiscal year         For the                For the
                                  (inception) to              ended           Nine months ended        quarter ended
                                December 31, 1995       December 31, 1996    September 30, 1997     September 30, 1997
                                -----------------       -----------------    ------------------     ------------------

<S>                                 <C>                      <C>                   <C>                   <C>    
Income                               $11,349                  $51,664               $44,853               $15,017
Fixed Charges                          5,063                    5,646                10,602                 4,272
                                     -------                  -------               -------               -------
Adjusted Earnings                    $16,412                  $57,310               $55,455               $19,289
                                     =======                  =======               =======               =======
                                                                                                         
Fixed Charges:                                                                                           
   Interest on indebtedness and                                                                          
   amortization of deferred                                                                              
   finance cost                      $ 5,063                  $ 5,646               $10,602               $ 4,272
                                     -------                  -------               -------               -------
Total Fixed Charges                  $ 5,063                  $ 5,646               $10,602               $ 4,272
                                     =======                  =======               =======               =======
Ratio of Earnings to                                                                                     
  Fixed Charges                        3.24x                   10.15x                 5.23x                 4.52x
                                     =======                  =======               =======               =======
                                                                     
</TABLE>



                                                                 Exhibit 23.1

                    Consent of Independent Public Accountants

As independent  public  accountants,  we hereby consent to the  incorporation by
reference  in  this  registration  statement  of  our  reports  for  Hospitality
Properties Trust dated January 10, 1997, HMH HPT Courtyard,  Inc. dated February
28, 1997 and HMH HPT Residence  Inn, Inc dated February 28, 1997 all included in
Hospitality  Properties  Trust's Form 10-K for the year ended  December 31, 1996
and to all references to our Firm included in this registration statement.

                                                 /s/  Arthur Andersen LLP

Washington, D.C.
December 29, 1997


<PAGE>


                    Consent of Independent Public Accountants

As independent  public  accountants,  we hereby consent to the  incorporation by
reference in Hospitality  Properties Trust's registration  statement on Form S-3
of our report dated  November  21, 1997 on Limited  Service I Hotels and Limited
Service II Hotels  combined  financial  statements for the year ended January 3,
1997 included in HPT's Form 8-K dated  November 21, 1997,  and to all references
to our Firm included in this registration statement.

                                                 /s/  Arthur Andersen LLP

Washington, D.C.
December 29, 1997





                                                                    Exhibit 23.2

                    CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS


         As   independent   public   accountants,   we  hereby  consent  to  the
incorporation  by  reference  in  this  registration  statement  of  Hospitality
Properties  Trust, to be filed on or about the date hereof,  of our report dated
March 4, 1997 included in Hospitality Properties Trust's Form 8-K dated November
21,  1997  and to all  references  to our  Firm  included  in this  registration
statement.

/s/ Reznick Fedder & Silverman

Bethesda, Maryland
December 29, 1997


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