HEALTH & RETIREMENT PROPERTIES TRUST
8-K, 1997-12-19
REAL ESTATE INVESTMENT TRUSTS
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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549





                                    FORM 8-K




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




       Date of Report (Date of earliest event reported): December 5, 1997




                     HEALTH AND RETIREMENT PROPERTIES TRUST
             (Exact name of registrant as specified in its charter)




        Maryland                    1-9317               04-6558834
   (State or other              (Commission           (IRS Employer
   jurisdiction of )             File Number)         Identification No.)
    incorporation)



   400 Centre Street, Newton, MA                     02158
  (Address of principal executive offices)        (Zip Code)



        Registrant's telephone number, including area code: 617-332-3990





<PAGE>



Item 2. Acquisition or Disposition of Assets

         On  December  5,  1997,  Health  and  Retirement  Properties  Trust and
Subsidiaries  (the  "Company")  purchased  Bridgepoint  Square an office complex
containing five commercial office properties with  approximately  441,145 square
foot located in Austin,  Texas from Investors  Life  Insurance  Company of North
America and Family Life Insurance  Company for $78 million plus closing costs in
a negotiated arms-length transaction. The properties have been and will continue
to be rented as commercial office space.

         Property agent and management services, for this property are currently
provided by the seller, an unaffiliated third party. The management  contract is
cancelable  upon  30  days  written  notice.  Management  fees  are  based  on a
percentage of revenue  derived from this  property.  The Company plans to retain
the current  property  manager under a  transitional  period.  Subsequent to the
transitional  period,  the  property  will be  managed by M&P  Partners  Limited
Partnership  ("M&P"),  which provides property agent and management services for
certain of the  Company's  multi-tenant  buildings.  M&P is owned by its general
partner,  HRPT Advisors,  Inc.,  the Company's  advisor,  and Messrs.  Gerard M.
Martin  and  Barry  M.  Portnoy,  who  are  managing  trustees  of the  Company.
Management  fees paid to M&P are based on a percentage  of revenue  derived from
the multi-tenant buildings under its management.

         The  consideration  for the acquisition was funded initially by drawing
under the Company's  existing  revolving line of credit with Dresdner  Kleinwort
Benson North America LLC, as agent,  and Fleet National Bank, as  administrative
agent, and available cash.

Item 5. Other Information

         On December 15, 1997, the Company completed a private placement of $150
million of 6 3/4% Senior Notes due 2002.  The net proceeds of the placement were
used to reduce  outstanding  borrowings  under the Company's  revolving  line of
credit which were at a floating interest rate.


Item 7.  Financial Statements, Pro Forma Financial Information and Exhibits.

(a)      Financial Statements Under Rule 3-14 of Regulation S-X

         The  audited  statement  of gross  income and  certain  expenses of the
         property  described  in Item 2 of this  Report is not filed  herein but
         will be filed as an  amendment  to this Form 8-K  within 60 days of the
         date hereof.

(c)      Exhibits

         2.1      Purchase  and Sale  Agreement  dated  November 24, 1997 by and
                  between  Investors Life Insurance Company of North America and
                  Family Life Insurance Company,  as seller and the Company,  as
                  purchaser.

         4.1      Indenture  dated as of  December  18,  1997 by and between the
                  Company and State Street Bank and Trust Company, as Trustee.

         4.2      Supplemental  Indenture  dated as of December  18, 1997 by and
                  between the Company and State  Street Bank and Trust  Company,
                  as Trustee  relating to the  Company's 6 3/4% Senior Notes due
                  2002.

         4.3      Registration Rights Agreement dated as of December 18, 1997 by
                  and between the Company and Merrill Lynch & Co.

         99.1     Press Release of the Company dated December 18, 1997.

<PAGE>



                                   SIGNATURES

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


                                      HEALTH AND RETIREMENT PROPERTIES TRUST
                                    
                                    
                                    
                                      By:  /s/ Ajay Saini
                                           Ajay Saini, Treasurer and Chief 
                                           Financial Officer
                                    
Date: December 19, 1997     




                                                                    Exhibit 2.1


                           PURCHASE AND SALE AGREEMENT

                      FOR BRIDGEPOINT SQUARE, AUSTIN, TEXAS


                                     BETWEEN


                     HEALTH AND RETIREMENT PROPERTIES TRUST,
                     A MARYLAND REAL ESTATE INVESTMENT TRUST

                                    AS BUYER


                                       AND


                        INVESTORS LIFE INSURANCE COMPANY
                                OF NORTH AMERICA
                                       AND
                          FAMILY LIFE INSURANCE COMPANY

                                   AS SELLERS



                             AS OF NOVEMBER 19, 1997


<PAGE>



                                    EXHIBITS

Exhibit A       Land
Exhibit B-1     Special Warranty Deed of Investors Life Insurance Company
                  of North America
Exhibit B-2     Special Warranty Deed of Family Life Insurance Company
Exhibit C-1     Special Warranty Bill of Sale of Investors Life Insurance 
                  Company of North America
Exhibit C-2     Special Warranty Bill of Sale of Family Life Insurance Company
Exhibit D-1     Assignment and Assumption of Leases of Investors Life Insurance
                  Company of North America
Exhibit D-2     Assignment and Assumption of Leases of Family Life Insurance 
                  Company
Exhibit E       Copy of Confidentiality Agreement - Principal
Exhibit F       Form of Notice Letter sent to Tenants of
                  Investors Life Insurance Company of North America
Exhibit F       Form of Notice Letter sent to Tenants of Family Life Insurance
                  Company
Exhibit G       Assignment and Assumption of Warranties and Guaranties of
                  Investors Life Insurance Company of North America
Exhibit G       Assignment and Assumption of Warranties and Guaranties of
                  Family Life Insurance Company
Exhibit H       Surveyors Certificate
             
Schedule 11(b)  Personal Property
Schedule 33     Lease Commissions and Unfunded Tenant Improvements



<PAGE>



                           PURCHASE AND SALE AGREEMENT

         This Purchase and Sale Agreement (this  "Agreement") is entered into as
of November 19, 1997  ("Effective  Date"),  by and between HEALTH AND RETIREMENT
PROPERTIES  TRUST,  a  Maryland  real  estate  investment  trust  ("Buyer")  and
INVESTORS LIFE  INSURANCE  COMPANY OF NORTH  AMERICA,  a Washington  corporation
("Investors")  and FAMILY  LIFE  INSURANCE  COMPANY,  a  Washington  corporation
("Family Life")  (Investors and Family Life are hereinafter  referred to jointly
as "Seller" or "Sellers").

                                    RECITALS

         Sellers  are the  owners  of  Bridgepoint  Square,  a  multiple  office
building project ("Project") located at 6300 Bridgepoint Parkway, Austin, Travis
County,  Texas 78730 on adjoining  tracts of land  legally  described as Lot One
(1),  HIDDEN VALLEY,  PHASE B, a subdivision  in Travis  County,  Texas ("Lot 1,
Phase  B") and Lot Two (2),  HIDDEN  VALLEY,  PHASE A, a  subdivision  in Travis
County, Texas ("Lot 2, Phase A").

         The  Project is composed of five  office  buildings  and three  parking
garage  structures.   Bridgepoint  One,   Bridgepoint  Two,  Bridgepoint  Three,
Bridgepoint  Four and two parking garage  structures are located on Lot 1, Phase
B, and are owned by Investors. Bridgepoint Five and one parking garage structure
are located on Lot 2, Phase A, and are owned by Family Life.
Investors and Family Life are affiliated companies.

         Sellers  desire to sell and Buyer desires to purchase the Property upon
the terms and conditions hereinafter set forth.

                                    AGREEMENT

         In  consideration  of the mutual  promises,  covenants  and  conditions
hereinafter set forth,  and other good and valuable  consideration,  the receipt
and  sufficiency  of which are hereby  acknowledged,  Buyer and  Sellers  hereby
covenant and agree as follows:

1.       Conveyance of Property

         1.1 On the  terms  and  subject  to the  conditions  set  forth in this
Agreement, Sellers will sell, convey and assign to Buyer, and Buyer will buy and
accept from Sellers, all of the following ("Property"):

                  1.1(a)   the land in Austin,  Texas,  being more  specifically
                           described in the legal  description on Exhibit A (the
                           "Land"),  together  with  all  rights  and  interests
                           appurtenant  thereto,  including without  limitation,
                           all (i) adjacent streets,  alleys,  rights-of-way and
                           any  adjacent  strips or gores of real  estate;  (ii)
                           buildings,   structures   and   other   improvements,
                           fixtures  and  landscaping  located  on the Land (the
                           "Improvements");   and  (iii)   rights,   titles  and
                           interests  appurtenant to the Land and  Improvements,
                           including

                                                    
<PAGE>



                           without limitation, all easements benefiting the Land
                           and all  reversionary  interests  in the Land and the
                           Improvements (the "Appurtenances");

                  1.1(b)   equipment  and  other  tangible   personal   property
                           located on and used in connection and associated with
                           the ownership, maintenance,  management and operation
                           of the Land and  Improvements  and  owned by  Sellers
                           including  without   limitation  those  described  in
                           Schedule  1.1(b)  attached  hereto  and  made  a part
                           hereof  for all  purposes,  excluding,  however,  the
                           Chevrolet Silverado Crew Cab (Dually) one ton pick-up
                           truck  sometimes  located  on the Land and such other
                           excluded  items as set forth on Schedule  1.1(b) (the
                           "Personal Property");

                  1.1(c)   any and all of Sellers' right,  title and interest in
                           and to (i) plans,  and  specifications  (the "Plans),
                           (ii)  warranties and guaranties  (the  "Warranties"),
                           (iii) licenses,  permits and  governmental  approvals
                           (the "Licenses") and (iv) the right to enforce any of
                           the foregoing; and

                  1.1(d)   all right,  title interest of Sellers in and to those
                           lease   agreements   and  any   amendments   thereto,
                           affecting  or relating  to the Land and  Improvements
                           (the  "Leases") and to any security  deposits held by
                           Sellers at the Closing.

         1.2 All of the  Property  will be  transferred  to Buyer at Closing (as
hereinafter defined) free and clear of all liens, claims and encumbrances except
for the Permitted Encumbrances (as hereinafter defined).

         1.3 Though Family Life has substantially completed Bridgepoint Five and
has received a temporary  occupancy  certificate ("TCO") from the City of Austin
for Bridgepoint  Five, there are various punch list items and other  improvement
that remain  incomplete,  including,  but not limited  to,  installation  of the
marble in the lobby of Bridgepoint  Five which has been special ordered and will
not arrive until January,  1998. In addition,  though  Bridgepoint  Two has been
finally  completed,  the final  certificate of occupancy for Bridgepoint Two has
not been received from the City of Austin.  As part of the consideration for the
purchase and sale of the  Property,  Sellers agree to complete  construction  of
Bridgepoint  Five in accordance with the  construction  contract  between Family
Life and Constructors, Inc. and in accordance with the requirements of the Lease
between  Family  Life,  as  Landlord,   and   International   Business  Machines
Corporation  ("IBM"),  as Tenant (the "BP Five Lease")  (which BP Five Lease has
been  assigned by IBM to Tivoli  Systems  Subsidiary,  Inc.) and agrees to fully
complete  Bridgepoint  Five, pay all amounts properly due to Constructors,  Inc.
under the Bridgepoint Five construction  contract and obtain a final certificate
of occupancy for Bridgepoint  Two and Bridgepoint  Five from the City of Austin.
In  connection  therewith,  to the extent  Sellers need to retain  rights to the
Plans, Warranties, or Licenses to complete such construction, Buyer acknowledges
that  Sellers  shall  retain  such  rights at  Closing,  and will  complete  the
assignment of such rights as soon as the  construction  has been completed,  all
warranties  have  been  issued  by the  contractors,  and  all  certificates  of
occupancy for Bridgepoint Two and Bridgepoint Five have been issued. 

                                        2

<PAGE>


Sellers and Buyer agree to cooperate  with each other in order to accomplish the
foregoing. This provision shall survive Closing.

2. Earnest Money. Upon the execution of this Agreement,  Buyer will deposit with
Heritage Title Company of Austin,  Inc., 301 Congress Avenue, Suite 450, Austin,
Travis  County,  Texas  Attention:  Jan Dwyer (the "Title  Company"),  as escrow
agent,  a  total  of  Seven  Million  and  No/100  Dollars   ($7,000,000.00)  in
immediately  available  funds  in  consideration  for  this  Agreement  and  the
Inspection Period (defined below) (the "Earnest Money"). The Earnest Money shall
be held by the Title Company in an interest bearing account. All interest earned
on the Earnest Money shall be credited to Buyer at Closing.

3. Purchase Price

         3.1 The purchase price for the Property will be  Seventy-eight  Million
and  No/100  Dollars  ($78,000,000.00)  (the  "Purchase  Price"),  to be paid in
immediately available funds at Closing,  subject to the adjustments described in
this Agreement.

         3.2 All rents  ("Rents"),  real and  personal  property  taxes,  owners
association  assessments,  utility charges and all other expenses related to the
ownership and operation of the Property will be prorated as of 12:01 a.m. on the
Closing  Date.  All rents for the month of Closing,  regardless  of whether same
have been  collected  prior to Closing,  will be prorated at the Closing.  Final
meter readings will be made as of the Closing Date, and Sellers will arrange for
and pay for final billings  through the Closing Date.  Buyer will pay Sellers at
Closing for any deposits held by the  providers of such  utilities to the extent
such deposits  will be  refundable to Buyer.  Sellers will have the right to use
commercially  reasonable  means in pursuing  collection from  Southwestern  Bell
Yellow Pages for  delinquent  common area  maintenance  charges and expenses for
1995 and 1996, and to collect the Additional Tenant  Improvement  Allowances (as
defined in the respective leases) from Silicon Graphics,  Inc. (recently billed,
but not yet paid) and  International  Business  Machines  Incorporated  (and its
subsidiary Tivoli Systems Subsidiary,  Inc.) (final amount not yet determined or
billed),  including  filing lawsuits to obtain money judgments  against any such
tenants to recover same; provided,  however, Sellers shall not have the right to
seek any equitable remedies to evict such tenants or otherwise  terminate any of
the Leases.  Sellers agree to keep Buyer  reasonably  apprised of any collection
efforts made, or litigation  filed, by Sellers to collect any delinquent  rents,
including copying Buyer on all correspondence and pleadings.  At any time, Buyer
shall have the right to purchase any of the aforesaid  receivables  for the face
amount of such receivable,  or such lesser amount as is acceptable to Seller, if
any.

         3.3  Attached  hereto  as  Schedule  3.3 is a  schedule  titled  "Lease
Commissions  and Unfunded  Tenant  Improvements",  which schedule sets forth the
current status of various Leases,  including certain obligations for commissions
and tenant  improvements to be allocated  between Sellers and Buyer as set forth
therein. The items set forth on Schedule 3.3 shall either constitute adjustments
to the Purchase  Price or be real property  apportionments  as  contemplated  by
Section 9 of this Agreement.

                                        3

<PAGE>



         3.4 Sellers  hereby  disclose to Buyer,  and Buyer hereby  acknowledges
that Sellers have deposited $73,000.00 with the City of Austin to secure Sellers
obligation to complete the landscaping requirements as set forth in the approved
site plan and building permit for the Property.  Buyer hereby  acknowledges that
Sellers  retain  all  rights  to  such  deposit,  and  upon  completion  of  the
landscaping  requirements  and  agreement  of the City of Austin to release such
fiscal deposit, such deposit shall be returned to Sellers.

4. Delivery of Documents by Sellers

         4.1 Sellers have  previously  delivered to Buyer a commitment for title
insurance  ("Commitment")  issued by Heritage Title Company of Austin,  Inc., as
agent for  Chicago  Title  Insurance  Company,  insuring  the  Property  for the
Purchase Price and showing the Buyer as proposed  insured,  together with copies
of all documents referenced as exceptions in the Commitment.

         4.2 Sellers have previously  provided or made available to Buyer, or to
the extent not previously  provided or made available to Buyer, will, within one
(1) business day  following  the  Effective  Date (the  "Document  Date"),  make
available at the Property the following documents and information:

                  4.2(a)   operating  statements,  including  income and expense
                           statements, in the possession of Sellers with respect
                           to the  operation of the Property for calendar  years
                           1995 and 1996 and January 1, 1997 through October 31,
                           1997;

                  4.2(b)   a current  rent roll ("Rent  Roll") as of November 1,
                           1997, listing the tenants in the Improvements,  their
                           respective  locations,   approximate  square  footage
                           leased, annual rent, security deposits, if any, lease
                           date, fixed rent and additional rent, unfunded tenant
                           improvement   allowances,    if   any,   and   unpaid
                           commissions, if any, as well as any unleased space in
                           the Improvements, if any;

                  4.2(c)   a schedule listing the Personal Property that will be
                           transferred to Buyer and will not be owned by Sellers
                           after Closing;

                  4.2(d)   copies of all property tax statements for 1997;

                  4.2(e)   copies of all utility  bills for the Property for the
                           years 1996 and 1997 year to date;

                  4.2(f)   copies of all current  service  and vendor  contracts
                           ("Contracts")   relating  to  the  Property  and  all
                           warranty  agreements,  if any, in the  possession  of
                           Sellers;


                                        4

<PAGE>

                  4.2(g)   copies of any environmental reports pertaining to the
                           Property  prepared on behalf of Sellers or  otherwise
                           in the possession of Sellers, if any;

                  4.2(h)   a list of all major  Warranties,  including  roof and
                           HVAC  warranties,  and the warranties  related to the
                           construction of Improvements;

                  4.2(i)   UCC 11 search  from the  Secretary  of State of Texas
                           and the County Clerk of Travis County, Texas.

                  4.2(j)   estoppel certificates ("Estoppel  Certificates") from
                           the  existing  tenants  of the  Property,  issued  to
                           Starwood Opportunity Fund IV, L.P.
                           ("Starwood"), in Seller's possession.

         4.3 As soon as  reasonably  possible,  Sellers  will  provide  to Buyer
Estoppel  Certificates from Tivoli Systems  Subsidiary,  Inc., Tandem Computers,
Inc.,  Amherst  Securities,  Inc. and Texas A&M University in substantially  the
same form as the Estoppel Certificates described in Section 4.2(j). In addition,
Sellers will make commercially reasonable efforts to obtain current letters from
the existing tenants confirming that there have been no material changes in such
Estoppel  Certificates  previously  delivered to Sellers.  Sellers also agree to
obtain an assignment from Starwood, assigning all of Starwood's right, title and
interest in and to the Estoppel Certificates issued to Starwood.

         4.4 Within one (1) day  following  the  Effective  Date,  Sellers  will
deliver to Buyer  four (4) copies of a current  ALTA  survey  ("Survey")  of the
Property prepared by Tommy P. Watkins, Registered Professional Land Surveyor No.
4549, with the firm of Cunningham-Allen,  Inc., together with a certification in
the form attached as Exhibit H.

         4.5 Buyer's  obligation to consummate the transactions  contemplated by
this Agreement shall be subject to the satisfaction of the following  conditions
precedent:

                  4.5(a)   No  notice  of  default  shall  have  been  given  or
                           received  by  Sellers  under any  material  agreement
                           benefitting  or affecting the Property in any respect
                           or under the Leases and all such  agreements  and the
                           Leases  shall be in full  force and  effect  (Sellers
                           agreeing to issue default  notices in a  commercially
                           reasonable  manner  consistent with past  practices);
                           and

                  (b)      All    material    licenses,    permits   and   other
                           authorizations  reasonably  necessary for the current
                           use, occupancy and operation of the Property shall be
                           in full force and effect;  provided,  however,  Buyer
                           acknowledges and agrees that at Closing,  Seller will
                           not have  obtained a final  certificate  of occupancy
                           from  the  City  of  Austin  for  Bridgepoint  Two or
                           Bridgepoint  Five,  but will have a TCO from the City
                           of Austin for Bridgepoint  Two and  Bridgepoint  Five
                           and  a  certificate  from  Sellers'   architect  that
                           Bridgepoint  Two  and  Bridgepoint   Five  have  been
                           substantially  completed in accordance with the plans
                           and specifications.



                                        5

<PAGE>



5. Right of Entry, Inspection, Termination

         5.1 Buyer, at Buyer's sole cost and expense, will have until 12:00 p.m.
Austin,  Texas time, on December 5, 1997 (the  "Inspection  Period") in which to
conduct  investigations  and  inspections  of the  Property to  determine if the
Property is acceptable to Buyer, in Buyer's sole and absolute discretion. During
the  Inspection  Period,  Buyer will obtain such  investigation  and  inspection
reports related to the Property as Buyer deems necessary ("Buyer's Investigation
Reports"). Sellers agree that during the Inspection Period, Buyer and its agents
and  representatives  will  be  entitled  to  enter  upon  the  Property,   upon
twenty-four (24) hour's prior telephonic notice to Sellers, or such shorter time
period as is verbally agreed to by Sellers, to conduct Buyer's investigation and
inspection of the Property and to prepare Buyer's Investigation  Reports.  Buyer
agrees to (a)  promptly  repair any physical  damage to the  Property  caused by
Buyer, (b) to indemnify, defend and hold Sellers harmless for any damages to the
Property, any personal injury suffered by any person, or any other loss, injury,
liability,  claim or damage arising or resulting from Buyer's  inspection of the
Property,  or otherwise  caused by Buyer or Buyer's  agents and  representatives
during its inspection of the Property,  (c) exercise all  reasonable  efforts to
not interfere  with any  activities  of any tenant of the  Property,  and (d) if
Buyer  terminates  this  Agreement  prior to the  expiration  of the  Inspection
Period, return to Sellers the Commitment,  the Survey and all reports, documents
and due diligence  information delivered by Seller to Buyer within five (5) days
from such termination.  Notwithstanding  anything contained in this Agreement to
the contrary,  the foregoing indemnity and obligations of Buyer will survive the
Closing  of the  transaction  contemplated  hereby  or the  termination  of this
Agreement.

         5.2 If prior to the  expiration of the  Inspection  Period,  Buyer,  in
Buyer's  sole and  absolute  discretion,  determines  that the  Property  is not
acceptable to Buyer,  then Buyer will be entitled to terminate this Agreement by
giving  written  notice  thereof  to  Sellers  prior  to the  expiration  of the
Inspection  Period  (the  "Termination  Notice"),  and in such  event  (i)  this
Agreement will automatically terminate,  (ii) upon Buyer's completion of Buyer's
Termination  Obligations  (as hereinafter  defined),  the Earnest Money shall be
refunded  to  Buyer,  except  for  $100.00  which  shall be paid to  Sellers  as
independent consideration for this Agreement, and (iii) the parties will have no
further rights or obligations under this Agreement.

         5.3 If Buyer does not timely give Sellers a Termination Notice prior to
the  expiration  of the  Inspection  Period,  (i)  Buyer  will be  deemed  to be
satisfied  with the  Property in all  respects,  (ii) Buyer will have no further
right to  terminate  this  Agreement  pursuant to this  Section 5, and (iii) the
Earnest Money will become  non-refundable,  except for the failure of Sellers to
close the sale of the Property in accordance with the terms of this Agreement.

         5.4 If Buyer gives Sellers a Termination Notice prior to the expiration
of the Inspection  Period,  or  subsequently  fails to close the purchase of the
Property,  then Buyer  will  comply  with the  following  ("Buyer's  Termination
Obligations"):  (i)  repair  any  damage  to  the  

                                        6

<PAGE>


Property caused by Buyer's  investigation  and inspection of the Property,  (ii)
return to Sellers all Title  Commitments,  Surveys,  reports or other  documents
delivered  by  Sellers  to Buyer,  and  (iii)  represent  to Seller  that it has
destroyed all other documents included in Buyer's investigation of the Property.
Notwithstanding  anything  contained  in this  Agreement  to the  contrary,  the
agreements  and   indemnities  set  forth  in  this  Section  will  survive  the
termination  of this  Agreement,  and  Sellers  will have the  right to  enforce
Buyer's Termination Obligations under this Section by specific performance.

         5.5 Buyer agrees to maintain strict confidentiality with respect to all
documents  and  information  provided  by  Sellers  to Buyer,  and to allow only
limited access to such documents and information  only to Buyer's  attorneys and
other  professional   agents  who  are  assisting  with  the  investigation  and
inspection of the Property. If Buyer does not close the purchase of the Property
for any reason,  Buyer will repair any damage to the Property  caused by Buyer's
inspection  of the  Property,  and will deliver to Sellers all the documents and
information provided to Buyer by Sellers (and all copies thereof made by Buyer).
Buyer will indemnify and hold Sellers  harmless from and against any loss, claim
or  liability  (including,   without  limitation,  court  costs  and  reasonable
attorneys'  fees,  arising or resulting  from the  inspections  made by Buyer or
Buyer's  agents  pursuant to this Section 5. The  provisions of this Section 5.5
will survive Closing or a termination of this Agreement.

         5.6 During the term of this  Agreement,  and as a condition to Buyer or
any of its agents,  representatives or consultants entering the Property,  Buyer
shall,  or shall  cause  its  agents  and  employees  to,  obtain  and  maintain
commercially reasonable insurance.

6. Title and Survey. Until December 3, 1997, Buyer will have the right to object
in  writing to any  matters  reflected  by the  Survey or the Title  Commitment;
provided,  however,  Buyer  shall make all  commercially  reasonable  efforts to
advise Seller as soon as possible of any  objections  Buyer has to the Survey or
the Title Commitment.  All matters to which Buyer so objects are hereby referred
to as "Non-Permitted  Encumbrances." All matters reflected by the Survey and the
Title  Commitment  to which such  objection  is not made,  or any  Non-Permitted
Encumbrances  which are subsequently  waived by Buyer, will be deemed "Permitted
Encumbrances."  All liens of any kind  (except  the lien for  current ad valorem
taxes not yet due and payable) will be Non- Permitted  Encumbrances,  whether or
not Buyer objects to them.  Sellers,  at their sole cost and expense,  will have
the  right,  but  not  the  obligation,  to cure  or  remove  all  Non-Permitted
Encumbrances prior to Closing. Sellers, at their sole cost, will be obligated to
cure,  remove or bond around,  at or before  closing,  all mortgages,  liens and
judgments (except the lien for current ad valorem taxes not yet due and payable)
against the Property. If Seller is unable or unwilling to cure any Non-Permitted
Encumbrance prior to Closing,  Buyer, as its sole and exclusive remedies,  shall
either (i)  terminate  this  Agreement  and receive an  immediate  refund of the
Earnest  Money and in such event this  Agreement  shall be null and void and the
parties  shall have no further  obligation  or liability  hereunder,  except for
Buyer's  Termination  Obligations,   or  (ii)  waive  such  objection  and  such
Non-Permitted  Encumbrance shall become a Permitted  Encumbrance and Buyer shall
proceed to Closing. Seller and Buyer acknowledge and agree that the Closing Date
shall not be extended  for the purposes of curing any of Buyer's  objections  to
the Survey or the Title Commitment.


                                        7

<PAGE>



7. Representations and Warranties; Disclaimer

         7.1      Sellers hereby represent and warrant to Buyer that:

                  7.1(a)   Sellers have the full right,  power, and authority to
                           execute,  deliver and perform this Agreement  without
                           obtaining  any  consent  or  approval  from any third
                           party,  and this Agreement  constitutes the valid and
                           binding  agreement  of Sellers,  enforceable  against
                           Sellers in accordance with its terms.

                  7.1(b)   The  Property  is  not  subject  to  any  outstanding
                           agreement(s) of sale,  option(s) or other right(s) of
                           third parties to acquire any interest therein,  other
                           than as tenants  pursuant to the  Leases.  During the
                           term of this  Agreement,  Sellers  will not offer the
                           Property for sale or in any way materially  adversely
                           affect  the  condition  of the title of the  Property
                           without the prior written approval of the Buyer.

                  7.1(c)   There are no leases  affecting the Property,  oral or
                           written,   except  the  Leases   delivered  to  Buyer
                           pursuant to Section 3 hereof. All tenant improvements
                           and lease  commissions  associated  with the existing
                           Leases are paid or will be paid by the Closing  Date,
                           or  adequate  provision  shall be made  therefore  at
                           Closing.

                  7.1(d)   Sellers  have  delivered  to Buyer true,  correct and
                           complete  copies of the Leases,  with all  amendments
                           thereto  which have been  executed  as of the date of
                           this Agreement. The Rent Roll delivered by Sellers to
                           Buyer are true,  correct and complete in all material
                           respects.

                  7.1(e)   There are no actions, suits, arbitrations,  claims or
                           proceedings   pending   that  (i)  could   materially
                           adversely  affect the  ownership  or operation of the
                           Property or Sellers' ability to perform hereunder, or
                           (ii)  would or could  alter  or be  binding  on Buyer
                           and/or the Property following Closing.

                  7.1(f)   Sellers  have  received no written  notice of taking,
                           condemnation,  betterment  or  assessment,  actual or
                           proposed,  with respect to the Property, and none has
                           occurred.

                  7.1(g)   Neither of the Sellers has received written notice of
                           and, to Sellers'  current actual  knowledge,  without
                           inquiry,  no  action  or  proceeding  is  pending  or
                           threatened and no  investigation  looking toward such
                           an action or proceeding  has begun,  which  questions
                           the validity of this Agreement or any action taken or
                           to be  taken  pursuant  hereto,  will  result  in any
                           material  adverse change in the business,  operation,
                           affairs or  condition

                                        8

<PAGE>

                           of the Property, result in or subject the Property to
                           a material  liability,  or involves  condemnation  or
                           eminent  domain  proceedings  against any part of the
                           Property.

                  7.1(h)   Other  than  the  Leases  listed  in the  Rent  Roll,
                           neither of the Sellers has entered  into any contract
                           or  agreement  with  respect to the  occupancy of the
                           Property  which will be  binding  on Buyer  after the
                           Closing.   The  copies  of  the   Leases   heretofore
                           delivered  by Sellers to Buyer are true,  correct and
                           complete  copies  thereof;  the Leases  have not been
                           amended  except as evidenced by amendments  similarly
                           delivered and constitute the entire agreement between
                           Sellers  and  the  tenants   thereunder.   Except  as
                           otherwise set forth in the Leases, the Rent Roll, the
                           Estoppel  Certificates,   and  in  Schedule  3.3,  to
                           Sellers' current actual  knowledge,  without inquiry;
                           (i) each of the Leases is in full force and effect on
                           the terms set forth  therein,  and  Sellers  have not
                           waived  any  obligation  of any Tenant to pay rent or
                           perform material obligations set forth in the Leases;
                           (ii) no Tenant has  asserted  in writing or, has made
                           any other  assertion  of any defense  to,  offsets or
                           claims against, rent payable by it or the performance
                           of its  other  obligations  under  its  Lease;  (iii)
                           Sellers have no outstanding obligation to provide any
                           Tenant  with  an  allowance  to   construct,   or  to
                           construct   at   its   own   expense,    any   tenant
                           improvements;  (iv) no  Tenant is in  arrears  in the
                           payment  of any  sums  or in the  performance  of any
                           material  obligation  required  of it under its Lease
                           beyond any applicable grace period, and no Tenant has
                           prepaid  any  rent  or  other   charges   (except  as
                           disclosed in the Rent Roll);  (v) no Tenant has filed
                           a petition  in  bankruptcy  or for the  approval of a
                           plan  of   reorganization  or  management  under  the
                           Federal  Bankruptcy  Code or under any other  similar
                           state law, or made an  admission in writing as to the
                           relief  therein  provided,  or  otherwise  become the
                           subject of any proceeding  under any federal or state
                           bankruptcy  or  insolvency  law,  or has  admitted in
                           writing its inability to pay its debts as they become
                           due  or  made  an  assignment   for  the  benefit  of
                           creditors,  or has petitioned for the  appointment of
                           or has had appointed a receiver, trustee or custodian
                           for any of its property; (vi) no Tenant has requested
                           in writing a modification  of its Lease, or a release
                           of its  obligations  under its Lease in any  material
                           respect or has given written notice  terminating  its
                           Lease,  or  has  been  released  of  its  obligations
                           thereunder  in  any  material  respect  prior  to the
                           normal  expiration of the term thereof;  (vii) except
                           as set forth in the Leases,  no jr guarantor has been
                           released or discharged,  voluntarily or involuntarily
                           or by operation of law, from any obligation  under or
                           in  connection  with  any  Lease  or any  transaction
                           related thereto; (viii) all security deposits paid by
                           Tenants,  are as set forth in the Rent Roll; (ix) all
                           tenant finish and lease  commissions due with respect
                           to  each of the  Leases  has  been  paid,  except  as
                           otherwise set forth on the Rent Roll or


                                        9

<PAGE>

                           Schedule 3.3; and (x) the other information set forth
                           in the Rent Roll is true, correct and complete in all
                           material respects.

                  7.1(i)   Other than the Leases and the  Contracts,  neither of
                           the  Sellers  has  entered   into  any   contract  or
                           agreement  with respect to the Property which will be
                           binding on Buyer after the Closing.

                  7.1(j)   Sellers  have  not  received  written  notice  of any
                           threatened request, application,  proceeding, plan or
                           study which  would  materially  adversely  affect the
                           present use or zoning of any of the Property or which
                           would  modify  or  realign  any  adjacent  street  or
                           highway.

                  7.1(k)   Except  as  set  forth  in  the  Environmental   Site
                           Assessment  prepared  by HBC  Engineering,  Inc.  for
                           Starwood Capital Group, L.P. dated September 16, 1997
                           (the  "Environmental  Report"),  a copy of which  has
                           been  provided  by  Sellers  to  Buyer,  to  Sellers'
                           current actual  knowledge,  which  knowledge is based
                           solely  on the  Environmental  Report,  there  are no
                           hazardous waste,  contaminants,  oil,  radioactive or
                           other  material  on  the  Property,  or  any  portion
                           thereof,  in  violation  of any  applicable  Federal,
                           state or local statutes,  laws, ordinances,  rules or
                           regulations,  except any such materials maintained in
                           accordance with applicable law.

                  7.1(l)   Neither of the Sellers is a "foreign  person"  within
                           the  meaning  of Section  1445 of the  United  States
                           Revenue Code of 1986, as amended, and the regulations
                           promulgated thereunder.

Buyer  expressly  acknowledges  and agrees that all of the  representations  and
warranties  made by Sellers in Section 7.1,  and all  subsections  thereof,  are
expressly  limited  as set  forth  therein.  Except  as  otherwise  specifically
provided, the representations and warranties made by Sellers in this Section 7.1
shall survive the Closing for a period of six (6) months from the Closing.

         7.2 DISCLAIMER OF WARRANTIES;  AS IS PURCHASE.  EXCEPT FOR THE SPECIFIC
WARRANTIES AND REPRESENTATIONS SET FORTH IN SECTION 7.1 OF THIS AGREEMENT, BUYER
ACKNOWLEDGES  AND AGREES THAT PRIOR TO THE EXPIRATION OF THE INSPECTION  PERIOD,
IT WILL HAVE CONDUCTED ITS OWN INDEPENDENT  INVESTIGATION  AND INSPECTION OF ALL
ASPECTS OF THE PROPERTY,  IT WILL BE RELYING ON SUCH  INDEPENDENT  INVESTIGATION
AND  INSPECTION  IN  PURCHASING  THE  PROPERTY AND IT WILL NOT BE RELYING ON ANY
INFORMATION  PROVIDED BY SELLERS.  BUYER FURTHER ACKNOWLEDGES AND AGREES THAT AT
CLOSING,  BUYER WILL BE FULLY AND  COMPLETELY  SATISFIED  THAT THE  PROPERTY  IS
SATISFACTORY  IN ALL RESPECTS FOR ITS INTENDED USE AND AFTER CLOSING,  EXCEPT AS
EXPRESSLY  PROVIDED  IN  SECTION  7.1,  BUYER WILL HAVE NO  RECOURSE  WHATSOEVER
AGAINST  SELLERS  IN  CONNECTION  WITH ANY  ASPECT OF THE  PROPERTY,  OTHER THAN
SELLERS' WARRANTY OF TITLE CONTAINED IN THE 
                                       10

<PAGE>


DEED. BUYER HEREBY  ACKNOWLEDGES AND AGREES THAT EXCEPT AS EXPRESSLY PROVIDED IN
SECTION 7.1,  SELLERS HAVE NOT MADE, DO NOT MAKE AND  SPECIFICALLY  DISCLAIM ANY
AND  ALL  REPRESENTATIONS,   WARRANTIES,   PROMISES,  COVENANTS,  AGREEMENTS  OR
GUARANTIES OF ANY KIND OR CHARACTER WHATSOEVER, WHETHER EXPRESS OR IMPLIED, ORAL
OR WRITTEN,  PAST,  PRESENT OR FUTURE,  OF, AS TO, CONCERNING OR WITH RESPECT TO
THE  PROPERTY,  INCLUDING,  BUT NOT  LIMITED  TO:  (A) THE  NATURE,  QUALITY  OR
CONDITION OF THE PROPERTY,  INCLUDING THE STABILITY OF THE SOIL;  (B) THE INCOME
TO BE DERIVED FROM THE PROPERTY; (C) THE SUITABILITY OF THE PROPERTY FOR ANY AND
ALL ACTIVITIES AND USES WHICH BUYER MAY CONDUCT  THEREON;  (D) THE COMPLIANCE OF
THE PROPERTY WITH ANY LAWS,  RULES,  ORDINANCES OR REGULATIONS OF ANY APPLICABLE
GOVERNMENTAL  AUTHORITY  OR BODY,  INCLUDING,  BUT NOT  LIMITED TO, ANY STATE OR
FEDERAL ENVIRONMENTAL LAWS; OR (E) THE HABITABILITY,  MERCHANTABILITY OR FITNESS
FOR A  PARTICULAR  PURPOSE OF THE  PROPERTY,  AND BUYER  HEREBY  WAIVES ANY SUCH
REPRESENTATION,    WARRANTY,   PROMISE,   COVENANT,   AGREEMENT   OR   GUARANTY.
NOTWITHSTANDING  ANYTHING  HEREIN TO THE  CONTRARY,  SELLERS ARE  CONVEYING  THE
PROPERTY TO BUYER "AS IS, WHERE IS," AND "WITH ALL FAULTS."

THE FOREGOING PROVISION WILL SURVIVE CLOSING IN ALL RESPECTS.

         7.3      Buyer hereby represents to Sellers that:

                  7.3(a)   Buyer  is a  real  estate  investment  trust  validly
                           existing under the laws of the State of Maryland;

                  7.3(b)   Buyer is duly organized and has the power  (corporate
                           or otherwise) to carry out its obligations under this
                           Agreement.

                  7.3(c)   This  Agreement  is  a  valid  and  legally   binding
                           obligation of Buyer in accordance with its terms.

                  7.3(d)   The execution,  delivery and  performance by Buyer of
                           this  Agreement  does not and will  not  violate  any
                           provision of law, of any order, judgment or decree of
                           any court or other governmental  authority, or of any
                           agreement  or other  instrument  to which  Buyer is a
                           party or by which Buyer is bound, and will not result
                           in a breach  of or  constitute  a  default  under any
                           agreement or other  instrument  which could result in
                           the  creation or  imposition  of any lien,  charge or
                           encumbrance of any kind upon the Property.


                                       11

<PAGE>



                  7.3(e)   The  execution,   delivery  and  performance  of  the
                           Agreement,  and any and all  documents to be executed
                           by or received by it will not  constitute a breach or
                           default under any other agreement to which Buyer is a
                           party or by which Buyer may be bound or affects, or a
                           violation  of any law or court order which may affect
                           the Property, any part thereof, any interest therein,
                           or the use thereof.

                  7.3(f)   The  Confidentiality  Agreement  attached  hereto  as
                           Exhibit  E  is  a  true  and  correct   copy  of  the
                           Confidentiality Agreement executed by M & P Partners,
                           an  affiliate  of Buyer,  and Buyer  agrees to comply
                           with the terms of such Confidentiality Agreement.

8. Closing

         8.1 The closing  ("Closing")  of the sale of the Property by Sellers to
Buyer will occur on or before  December 5, 1997 (the  "Closing  Date").  Closing
will occur in the offices of the Title  Company or at another  place and/or time
as mutually  agreed  upon  Sellers  and Buyer,  commencing  at 12:00 p.m. on the
Closing Date. At Buyer's  option,  Closing may be an escrow closing  without the
need for  physical  presence at the Title  Company's  office.  At  Closing,  the
following will occur:

                  8.1(a)   Sellers,  at their cost and expense,  will deliver or
                           cause to be  delivered  to Buyer the  following  (the
                           "Closing Documents"):

                           (i)      Special Warranty Deed  substantially in form
                                    attached   hereto  as   Exhibit   B-1  fully
                                    executed and acknowledged by Investors,  and
                                    Special Warranty Deed in  substantially  the
                                    form  attached  hereto as Exhibit  B-2 fully
                                    executed  and  acknowledged  by Family Life,
                                    conveying    to    Buyer    the   Land   and
                                    Improvements,   subject  to  the   Permitted
                                    Encumbrances   (collectively   the  "Special
                                    Warranty Deeds");

                           (ii)     Special    Warranty    Bill   of   Sale   in
                                    substantially  the form  attached  hereto as
                                    Exhibit C-1, fully executed by Investors and
                                    accepted by Buyer,  and the Special Warranty
                                    Bill  of  Sale  in  substantially  the  form
                                    attached   hereto  as  Exhibit  C-2,   fully
                                    executed  by  Family  Life and  accepted  by
                                    Buyer, assigning, conveying and transferring
                                    to  Buyer  all  of  the  Personal   Property
                                    (collectively  the "Special Warranty Bill of
                                    Sale");

                           (iii)    An Owner's Policy of Title Insurance ("Title
                                    Policy")  issued on the form  promulgated by
                                    the Texas  Department  of  Insurance  in the
                                    full amount of the Purchase  Price issued by
                                    the  Title  Company,  as agent  for  Chicago
                                    Title Insurance Company, naming Buyer as the
                                    insured,  and insuring that Buyer is the fee
                                    


                                       12

<PAGE>

                                    owner  of the  Land  and  the  Improvements,
                                    subject only to the liens  securing  Buyer's
                                    loan from Buyer's  lender and the  Permitted
                                    Encumbrances  and  otherwise  as required by
                                    Buyer  prior  to  the   expiration   of  the
                                    Inspection Period;


                           (iv)     IRC Section 1445 Certification  executed and
                                    sworn to by Sellers;

                           (v)      any documents  required by the Title Company
                                    necessary to comply with IRC Section 6045;

                           (vi)     the  originals,  if any, of all  Warranties,
                                    Licenses  and  Plans  in the  possession  of
                                    Sellers;

                           (vii)    originals of all Leases;

                           (viii)   an  Assignment  and  Assumption of Leases in
                                    substantially  the form  attached  hereto as
                                    Exhibit D-1, fully executed by Investors and
                                    Buyer,  and an Assignment  and Assumption of
                                    Leases in  substantially  the form  attached
                                    hereto as Exhibit  D-2,  fully  executed  by
                                    Family Life and Buyer, assigning,  conveying
                                    and  transferring to Buyer all of the Leases
                                    referred to therein, with Buyer assuming all
                                    of the  obligations  of the lessor under the
                                    Leases  (collectively  the  "Assignment  and
                                    Assumption of Leases");

                           (ix)     a Notice Letter in the form attached  hereto
                                    as Exhibit  F-1 to be sent to all tenants of
                                    the  Property,  executed  by  Investors  and
                                    Buyer  and  a  Notice  Letter  in  the  form
                                    attached hereto as Exhibit F-2 to be sent to
                                    all  tenants of the  Property,  executed  by
                                    Family Life and Buyer; and

                           (x)      all   keys  to  the   Improvements   in  the
                                    possession of Sellers;

                           (xi)     evidence  satisfactory  to Buyer  and  Title
                                    Company that the person or persons executing
                                    the Closing  Documents  on behalf of Sellers
                                    have full right,  power and  authority to do
                                    so; and

                           (xii)    an affidavit  as to debts and liens,  if any
                                    existing against the Property.

                           (xiii)   Originals  of  the   Estoppel   Certificates
                                    previously  provided by Seller to Buyer,  or
                                    any  updates  thereto  obtained  by Sellers,
                                    together  with an  assignment by Starwood of
                                    all of its right,  title and interest in and
                                    to the Estoppel  Certificates,  and Estoppel
                                    Certificates from Tivoli Systems Subsidiary,
                                    Inc.,   Tandem  

                                       13

<PAGE>

                                    Computers,  Inc., Amherst  Securities,  Inc.
                                    and Texas A&M University.

                           (xiv)    Certificate from Sellers' architect that the
                                    Improvements   (excluding  Bridgepoint  One,
                                    which was not  constructed  by Sellers) have
                                    been  substantially  completed in accordance
                                    with the applicable plans and specifications
                                    and  the  plans  and   specifications   were
                                    prepared   are  in   compliance   with   all
                                    applicable laws, rules and regulations.


                  8.1(b)   Buyer, at its sole cost and expense,  will deliver or
                           cause to be delivered to Sellers the following:

                           (i)      payment  of the  Purchase  Price,  less  the
                                    Earnest Money with interest;

                           (ii)     the Special  Warranty  Bill of Sale accepted
                                    by Buyer;

                           (iii)    the Assignment and Assumption of Leases;

                           (iv)     a Notice Letter in the form attached  hereto
                                    as  Exhibit F to be sent to all  tenants  of
                                    the Property, executed by Sellers and Buyer;
                                    and

                           (v)      evidence  satisfactory  to  Sellers  and the
                                    Title Company that the person  executing the
                                    Closing  Documents  on  behalf  of Buyer has
                                    full right, power and authority to do so.

                  8.1(c)   On or prior to the  Closing  Date,  Sellers and Buyer
                           will each  execute  and deliver  Closing  Statements,
                           such  affidavits  or statements as may be required by
                           the Title Company to issue the Title Policy,  and any
                           other   instruments   and  documents  which  will  be
                           reasonably  necessary  to  complete  the  sale of the
                           Property.

                  8.1(d)   Each of the  Sellers and Buyer will pay its own legal
                           fees incurred in connection with this Agreement.

                  8.1(e)   Sellers will pay:

                           (i)      cost of the Survey, the Title Commitment and
                                    the Title  Insurance  premium (not to exceed
                                    the promulgated rate) necessary to issue the
                                    Title Policy referenced in Section 6 hereof;

                           (ii)     a commission  due to CB Commercial  pursuant
                                    to separate agreement; and

 

                                       14

<PAGE>

                           (iii)    all other items which are  normally  paid by
                                    Sellers  in  real  estate   transactions  in
                                    Austin, Texas.

                  8.1(f)   Buyer will pay:


                           (i)      the additional  premium for  modification of
                                    the areas and  boundaries  exception to read
                                    "shortages  in  area"  only,  if the same is
                                    requested  by Buyer,  as well as any premium
                                    for any other endorsement or the cost of any
                                    inspection  fee imposed by the Title Company
                                    to  delete  the  exception  for  "rights  of
                                    parties in possession";

                           (ii)     the   cost   of   Buyer's   due    diligence
                                    inspection; and

                           (iii)    all other items which are  normally  paid by
                                    Buyers  in  real  estate   transactions   in
                                    Austin, Texas.

                  8.1(g)   Any other  closing  costs not listed  above in 8.1(e)
                           and 8.1(f),  including but not limited to Escrow Fees
                           if any, will be paid one-half by Sellers and one-half
                           by Buyer.

                  8.1(h)   Upon  completion of Closing,  Sellers will deliver to
                           Buyer possession of the Property, subject only to the
                           rights of the tenants in  possession  pursuant to the
                           Leases and the Permitted Encumbrances.

9.       Real Property Apportionments.

         9.1 The following  items shall be  apportioned at the Closing as of the
close of business on the day immediately preceding the Closing Date:

                  9.1(a)   all items of income and expense normally  apportioned
                           in sales of property in similar situations;

                  9.1(b)   annual  rents,  common area  maintenance  charges and
                           other  fixed  charges  payable  under the  Leases and
                           received by Sellers,

                  9.1(c)   other  unfixed  charges  payable under the Leases and
                           received by Sellers;

                  9.1(d)   fuel, electric, water and other utility costs;

                  9.1(e)   municipal  assessments and  governmental  license and
                           permit fees;

                  9.1(f)   real estate taxes and assessments  other than special
                           assessments,  based on the 1997  rates  and  assessed
                           valuation;

                                       15

<PAGE>


                  9.1(g)   water rates and charges; and

                  9.1(h)    sewer taxes and rents.


         9.2 If any refunds of real property taxes or  assessments,  water rates
and charges or sewer taxes and rents shall be made after the  Closing,  the same
shall be held in trust by Sellers or Buyer,  as the case may be, and shall first
be applied to the unreimbursed costs incurred in obtaining the same, then to any
required refunds to tenants under the Leases, and the balance,  if any, shall be
paid to Sellers (for the period  prior to such  Closing  Date) and to Buyer (for
the period commencing with such Closing Date).

         9.3 If, on the Closing Date,  the Property  shall be or shall have been
affected by any special or general  assessment or  assessments  or real property
taxes payable on a lump sum or which are or may become  payable in  installments
of which the first  installment is then a charge or lien and has become payable,
Sellers shall pay or cause to be paid at the Closing the unpaid  installments of
such  assessments  due up to the Closing Date and Buyer shall be  responsible to
pay all  installments  thereof  which are to become  due and  payable  after the
Closing Date.

         9.4 No insurance  policies of Sellers are to be  transferred  to Buyer,
and no apportionment of the premiums therefor shall be made.

         9.5 At the Closing, Sellers shall transfer to Buyer (or credit to Buyer
against  the  Allocable  Purchase  Price) the amount of all  unapplied  security
deposits held pursuant to the terms of the Leases with respect to the Property.

         9.6 If a net  amount  is owed by  Sellers  to  Buyer  pursuant  to this
section,  such amount  shall be credited  against the Purchase  Price.  If a net
amount is owed by Buyer to Sellers  pursuant  to section,  such amount  shall be
added to the Purchase Price.

         9.7 All adjustments for unpaid leasing  commissions and unfunded tenant
improvement allowances shall be apportioned as contemplated by Schedule 3.3.

10. Operation of the Property. From the date hereof until closing,  Sellers will
(i)  maintain  and operate the  Property in a manner  consistent  with  Sellers'
maintenance and operation thereof since Sellers  acquisition of the Property and
use all reasonable  efforts to comply with all requirements of the Leases,  (ii)
continue  to  maintain  the  insurance  coverage  with  respect to the  Property
existing as of the  Effective  Date,  (iii) not enter into any agreement or take
any action that is (a) outside the normal scope of maintaining and operating the
Property or (b) is not terminable on thirty (30) days written  notice,  (iv) not
remove  any items or  Personal  Property  from the  Property  unless the same is
replaced by Sellers  with an article of equal  suitability  and value,  free and
clear of any lien or security  interest and (v) not negotiate with or enter into
an  agreement  to sell the  Property to any other  prospective  purchaser of the
Property.

11.  Notices.  Any notice or demand provided for or given pursuant to this Lease
shall be in writing and served on the parties at the addresses listed below. Any
notice shall be either (a) 
                                       16

<PAGE>


personally  delivered to the address set forth below,  in which case it shall be
deemed  delivered  on the  date of  delivery  to the  addressee;  or (b) sent by
registered or certified mail/return receipt requested, in which case it shall be
deemed  delivered  upon  receipt or refusal  thereof;  (c) sent by a  nationally
recognized  overnight  courier,  in which case it shall be deemed delivered upon
receipt or refusal thereof ; or (d) sent by telecommunications  ("Fax") in which
case it shall be deemed delivered on the day sent,  provided an original is sent
to the addressee by a nationally  recognized  overnight  courier  within one (1)
business  day of the Fax.  The  addresses  and Fax number  listed  herein may be
changed by  written  notice to the other  parties,  provided,  however,  that no
notice of a change of  address or Fax number  shall be  effective  until date of
delivery of such notice.  Copies of notice are for  informational  purposes only
and a failure  to give or  receive  copies of any  notice  shall not be deemed a
failure to give  notice.  For purposes of notice,  the  addresses of the parties
shall be as follows:

         If to Buyer:        Health and Retirement Properties Trust
                             400 Centre Street
                             Newton, Massachusetts 02158
                             Attn: David J. Hegarty
                             Fax Number: (617) 332-2261

         with a copy to:     Jennifer Clark, Esq.
                             Sullivan & Worester, LLP
                             One Post Office Square
                             Boston, Massachusetts 02109
                             Fax Number: (617) 338-2880

         and a copy to:      Adrian M. Overstreet
                             5305 Arbutus Cove
                             Austin, Texas 78746
                             Fax Number: (512) 327-2495

         If to Sellers:      Investors Life Insurance Company of North America
                             701 Brazos, Suite 1400
                             Austin, Texas 78701
                             Attn: James M. Grace
                             Fax Number: (512) 404-5051

                             Family Life Insurance Company
                             701 Brazos, Suite 1400
                             Austin, Texas 78701
                             Attn: James M. Grace
                             Fax Number: (512) 404-5051

 

                                       17

<PAGE>

        with a copy to:     Sneed, Vine, & Perry, P.C.
                            901 Congress Avenue
                            Austin, Texas 78701
                            Attn: William D. Brown
                            Fax Number:  (512) 476-1825


Notice  from  counsel  to all  parties  entitle  to  notice as set forth in this
Section 10 shall constitute adequate notice.

12.  Commissions.  Sellers  shall pay to CB  Commercial  ("Broker")  any and all
commissions,  fees, or other amounts owed to Broker in connection  with the sale
of the Property,  which  payment shall be made in accordance  with the Brokerage
Agreement.  Sellers shall defend,  indemnify,  and hold harmless, Buyer from any
claim by Broker or any other party  claiming  under  Sellers for any  brokerage,
commission, finder's or other fees relative to this Agreement or the sale of the
Property,  and any court  costs,  attorneys'  fees,  or other  costs or expenses
arising  therefrom,  and alleged to be due by  authorization  of Sellers.  Buyer
shall defend,  indemnify,  and hold harmless Sellers from any claim by any party
other than Broker claiming under Buyer for any brokerage,  commission, finder's,
or other fees relative to this  Agreement or the sale of the  Property,  and any
court costs,  attorneys' fees, or other costs or expenses arising  therefrom and
alleged  to be due by  authorization  of Buyer.  This  provision  shall  survive
Closing.

13. Assigns.  This Agreement shall inure to the benefit of and be binding on the
parties hereto and their respective heirs, legal representatives, successors and
assigns.  Notwithstanding the immediately preceding sentence, this Agreement may
not be assigned by the Buyer without the consent of Seller;  provided,  however,
this  Agreement  may be  assigned  directly  or  indirectly  through one or more
entities or  intermediaries  to an entity which is controlled  by, under control
with or controls  Buyer  without  the consent of Sellers,  but in no event shall
Buyer be released from its obligations under this Agreement.

14. Destruction, Damage or Taking Before Closing

         14.1 In the event of damage to or  destruction of all or any portion of
the Property by fire or other  casualty,  Sellers shall properly notify Buyer of
the nature and extent of such damage or destruction,  and the amount, if any, of
insurance  proceeds that are available to make such repairs or  restoration.  In
the event the cost to repair or  reconstruct  the damage caused by fire or other
casualty to the Property (the "Repair Cost") does not exceed  $250,000.00 in the
reasonable estimation of Sellers, then this Agreement shall remain in full force
and  effect.  If such  damage  or  destruction  has  not  been  repaired  to the
reasonable satisfaction of Buyer prior to Closing, Sellers shall assign to Buyer
any and all claims for the insurance  proceeds of such damage or  destruction of
the Property and pay to Buyer or credit against the Purchase Price the amount of
any  deductible,  but not to exceed the amount required to repair or replace the
portion of the  Property  destroyed,  and Buyer shall take title to the Property
with the  assignment of such proceeds and subject to such damage or  destruction
with no reduction of the Purchase Price. If Sellers reasonably estimate that the
Repair Cost exceeds  $250,000.00,  Buyer shall have the option to terminate this
Agreement in  accordance  with Section 14. If Buyer does not elect to

                                       18

<PAGE>

terminate,  this  Agreement  shall remain in full force and effect,  and if such
damage or destruction  has not been repaired to the reasonable  satisfaction  of
Buyer prior to Closing, Sellers shall assign to Buyer any and all claims for the
insurance  proceeds of such damage or  destruction  of the  Property  and pay to
Buyer or credit against the Purchase Price the amount of any deductible, but not
to exceed the amount  required to repair or replace the portion of the  Property
destroyed,  and Buyer shall take title to the Property  with the  assignment  of
such  proceeds  subject to such damage or  destruction  with no reduction of the
Purchase Price.

         14.2 In the event of eminent  domain taking or the issuance of a notice
of an eminent  domain taking with respect to all or any  substantial  portion of
the  Property  which  materially  affects  Buyer's use of the  Property  and the
existing  Improvements prior to the Closing Date, Buyer shall have the option to
terminate this Agreement in accordance  with Section 13 within ten (10) business
days after Buyer's receipt of written notice from Sellers (but in no event later
than the Closing Date) advising of such taking or proposed taking,  which notice
Sellers  hereby  agree to give  promptly  upon notice of such taking or proposed
taking.  If Buyer  shall  elect  not to  exercise  its right to  terminate  this
Agreement,  Buyer shall be obligated to consummate this transaction for the full
Purchase  Price  (subject to the other  provisions of this  Agreement) and Buyer
shall be entitled to receive  all eminent  domain  awards and, to the extent the
same may be necessary and appropriate,  Sellers shall assign to Buyer at Closing
Sellers' rights to such awards. This provision shall survive Closing.

15. Default and Remedies

         15.1 Buyer's Defaults;  Seller's  Remedies.  If Buyer fails to complete
the purchase and sale of the Property, except for a permitted right to terminate
this Agreement  specifically  set forth herein,  the Title Company shall pay the
Earnest  Money to Sellers as  liquidated  damages as Sellers' sole and exclusive
remedy (it being  agreed that  Sellers  shall have no right to enforce  specific
performance of this Agreement); and thereafter, this Agreement shall be null and
void and all  obligations  imposed upon either party shall cease and  terminate,
except for Buyer's Termination Obligations.  In the event of a default by Buyer,
the parties  agree that  Sellers'  actual  damages  would be very  difficult  to
definitively  ascertain  because  of (i) the  uncertainties  of the real  estate
market, (ii) fluctuating  property values between the time of this Agreement and
date of breach and (iii)  differences of opinion with reference to such matters.
As a result,  the parties  have agreed upon the  liquidated  damages as provided
herein.

         15.2 Sellers' Defaults;  Buyer's Remedies.  If Sellers fail to complete
the  purchase  and sale of the  Property  for any reason other than those herein
provided in this Agreement, Buyer, as Buyer's sole and exclusive remedies, shall
either (i) receive an  immediate  refund of the Earnest  Money and in such event
this  Agreement  shall be null and void and the  parties  shall  have no further
obligation or liability hereunder,  except for Buyer's Termination  Obligations,
(ii) seek specific  performance of this Agreement,  or (iii) sue for damages not
to exceed the lesser of (a) Buyer's actual out-of-pocket costs paid to unrelated
third parties in connection  with the  negotiation of this Agreement and Buyer's
due diligence related to the Property, or (b) $25,000.00.

                                       19

<PAGE>


16. Miscellaneous

         16.1     Representations and Warranties Do Not Survive Closing.  Except
                  as specifically set forth herein, any and all representations,
                  warranties,  covenants and agreements of Sellers and Buyer, as
                  well as any rights and benefits arising  hereunder,  shall not
                  survive the Closing, but shall be merged therein.

         16.2     Entire Agreement;  Modification.  This Agreement  embodies the
                  entire agreement of the parties hereto, and cannot,  under any
                  circumstances,  be modified orally,  and no agreement shall be
                  effective to waive, change, modify or discharge this Agreement
                  in whole or in part unless such agreement is in writing and is
                  signed by both Sellers and Buyer.

         16.3     Entire  Agreement.  This  Agreement,  including  the Exhibits,
                  contains  the  entire  agreement  between  Sellers  and  Buyer
                  pertaining to the subject  matter hereof and fully  supersedes
                  all prior  agreements and  understanding  between  Sellers and
                  Buyer pertaining to such subject matter.

         16.4     Further Assurances. Both Sellers and Buyer agree that it will,
                  without further consideration,  execute and deliver such other
                  documents  and  take  such  other  action,  whether  prior  to
                  subsequent to Closing,  as may be reasonably  requested by the
                  other party to  consummate  more  effectively  the purposes or
                  subject matter of this Agreement. This provision shall survive
                  Closing.

         16.5     Counterparts;  Facsimile  Signatures.  This  Agreement  may be
                  executed  in  multiple   counterparts   which,  when  combined
                  together,  shall constitute an original of this Agreement, and
                  all  such  executed  counterparts  shall  constitute  the same
                  Agreement.  It shall be necessary to account for only one such
                  counterpart in proving this Agreement. In addition,  facsimile
                  signatures   of  the  parties   shall  be   effective  on  all
                  counterparts of this Agreement.

         16.6     Severability.  In  case  any  one or  more  of the  provisions
                  contained in this Agreement shall for any reason be held to be
                  invalid,   illegal  or  unenforceable  in  any  respect,  such
                  invalidity,  illegality or  unenforceability  shall not affect
                  any  other  provision  hereof  and  this  Agreement  shall  be
                  construed  as  if  such  invalid,   illegal  or  unenforceable
                  provision had never been contained  herein,  and the remainder
                  of this Agreement shall  nonetheless  remain in full force and
                  effect.

         16.7     Applicable Law. This Agreement shall be governed and construed
                  in  accordance  with  the laws of the  State of Texas  without
                  regard  to  the   principles   of   conflicts   of  law.   The
                  enforceability  or  invalidity  of any one or more  provisions
                  hereby shall not affect the  enforceability or validity of any
                  other provision hereof.

         16.8     Section  Headings.  Section headings  contained herein are for
                  convenience  only and shall not be deemed to construe or limit
                  the meaning of the language

                                       20

<PAGE>

                  contained in this Agreement,  or be used as  interpreting  the
                  meanings and provisions hereof.

         16.9     Construction. If the last day of any time period stated herein
                  shall fall on a Saturday,  Sunday or legal  holiday,  then the
                  duration  of such time  period  shall be  extended  so that it
                  shall end on the next  succeeding day which is not a Saturday,
                  Sunday or legal holiday.  Whenever used in this Agreement, the
                  singular  shall  include the plural,  the plural shall include
                  the singular, and the use of any gender shall be applicable to
                  all genders. The parties acknowledge that their attorneys have
                  reviewed and  negotiated  the  provisions  of this  Agreement;
                  therefore,  the rule of construction  that any ambiguities are
                  to be  resolved  against  the  drafting  party  shall  not  be
                  employed  in  the  interpretation  of  this  Agreement  or any
                  amendments or exhibits hereto.

         16.10    Covenant not to Record.  Buyer will not record this Agreement.
                  Any attempted  recording of this Agreement shall  constitute a
                  default  hereunder on the part of Buyer and Sellers shall have
                  the immediate right to terminate this Agreement.

         16.11    Binding  Effect.  Without  limiting  the  effect of Section 12
                  hereof, this Agreement shall extend to and be binding upon the
                  successors,    assigns,    nominees    and/or    other   legal
                  representatives of the parties hereto.

         16.12    Time of Essence.  Time is of the essence of this Agreement.

         16.13    Effective Date. The "Effective  Date" of this Agreement is the
                  date this  Agreement  has been fully  executed  by Sellers and
                  Buyer.

         16.14    Allocation of Liability. It is expressly understood and agreed
                  that Sellers  shall be liable to third parties for any and all
                  obligations,   claims,  losses,  damages,   liabilities,   and
                  expenses arising out of events, contractual obligations, acts,
                  or omissions of Sellers that occurred in  connection  with the
                  ownership or  operation  of the Property  prior to the Closing
                  and Buyer  shall be liable  to third  parties  for any and all
                  obligations, claims, losses, damages, liabilities and expenses
                  arising  out of  events,  contractual  obligations,  acts,  or
                  omissions of Buyer that occur in connection with the ownership
                  or operation of the Property after the Closing. The provisions
                  of this section shall survive the Closing.

         16.15    Nonliability   of   Trustees.   THE   DECLARATION   OF   TRUST
                  ESTABLISHING  BUYER,  A  COPY  OF  WHICH,  TOGETHER  WITH  ALL
                  AMENDMENTS THERETO (THE "DECLARATION"), IS DULY FILED WITH THE
                  DEPARTMENT  OF  ASSESSMENTS  AND  TAXATION  OF  THE  STATE  OF
                  MARYLAND,  PROVIDES  THAT  THE  NAME  "HEALTH  AND  RETIREMENT
                  PROPERTIES TRUST" REFERS TO THE TRUSTEES UNDER THE DECLARATION
                  COLLECTIVELY AS TRUSTEES,  BUT NOT INDIVIDUALLY OR PERSONALLY,
                  AND THAT NO TRUSTEE, OFFICER, 

                                       21

<PAGE>


                  SHAREHOLDER,  EMPLOYEE  OR AGENT OF BUYER SHALL BE HELD TO ANY
                  PERSONAL LIABILITY,  JOINTLY OR SEVERALLY,  FOR ANY OBLIGATION
                  OF, OR CLAIM AGAINST,  BUYER.  ALL PERSONS DEALING WITH BUYER,
                  IN ANY WAY,  SHALL  LOOK  ONLY TO THE  ASSETS OF BUYER FOR THE
                  PAYMENT OF ANY SUM OR THE PERFORMANCE OF ANY  OBLIGATION.  THE
                  PROVISIONS OF THIS SECTION SHALL SURVIVE THE CLOSING.

         16.16    Financials. Sellers shall provide the Buyer with access to the
                  books  and  records  of  Sellers  solely  as  related  to  the
                  Property,  for the  purpose of  allowing  Buyer's  independent
                  auditors  to  prepare  audited  financial  statements  for the
                  Property  with  respect to the 1996 and 1997  calendar  years,
                  such  financial  statements to be prepared at the Buyer's sole
                  cost and expense. The provisions of this section shall survive
                  the Closing hereunder.

         16.17    Publicity. The parties agree that no party shall, with respect
                  to this Agreement and the  transactions  contemplated  hereby,
                  contact or conduct  negotiations with public  officials,  make
                  any public  pronouncements,  issue press releases or otherwise
                  furnish   information   regarding   this   Agreement   or  the
                  transactions  contemplated  to any  third  party  without  the
                  consent  of  the  other  party,  which  consent  shall  not be
                  unreasonably   withheld.   Sellers  shall  not  trade  in  the
                  securities  of the Buyer  until a public  announcement  of the
                  transactions  contemplated by this Agreement has been made. No
                  party shall record this Agreement or any notice thereof.


                                       22

<PAGE>




         IN WITNESS  WHEREOF,  Buyer and Sellers have executed this Agreement as
of the date first set forth next to their respective signatures.

                           SELLERS:   INVESTORS LIFE INSURANCE COMPANY OF
                                      NORTH AMERICA, a Washington corporation



Date: November 24, 1997.              By:      /s/ Roy F. Mitte, President
                                               Roy F. Mitte, President

                                      FAMILY LIFE INSURANCE COMPANY, a
                                      Washington corporation



Date:November 24, 1997.               By:      /s/ Roy F. Mitte, President
                                               Roy F. Mitte, President


                           BUYER:     HEALTH AND RETIREMENT PROPERTIES
                                      TRUST, a Maryland real estate
                                      investment trust



Date:November 24, 1997.               By:      /s/ David J. Hegarty
                                               David J. Hegarty, President



                                       23

<PAGE>



                        RECEIPT OF EARNEST MONEY DEPOSIT
                          AND AGREEMENT OF ESCROW AGENT

Escrow Agent hereby acknowledges the receipt of the following:

         (i)      one (1) fully signed and executed copy of this Agreement; and

         (ii) the Earnest Money deposit in the amount of $7,000,000.00.

Escrow  Agent  hereby  agrees to act as Escrow  Agent under and  pursuant to the
terms of this Agreement.

                                      ESCROW AGENT:

                                      HERITAGE TITLE COMPANY OF AUSTIN,INC.


                                      By:/s/ Jancox Dwyer
                                         Title:
                                         Date: November 26, 1997





                                       24

<PAGE>


The exhibits to this agreement,  which are summarized on the second page of this
document at  "EXHIBITS",  have been omitted  pursuant to  Regulation  S-K,  Item
601(2).  A copy of such exhibits will be provided to the Securities and Exchange
Commission upon request.

                                                                     EXHIBIT 4.1

                     HEALTH AND RETIREMENT PROPERTIES TRUST

                                       TO

                       STATE STREET BANK AND TRUST COMPANY

                                     Trustee




                                    Indenture

                          Dated as of December 18, 1997



                            Unsecured Debt Securities





<PAGE>

<TABLE>
<CAPTION>
                               TABLE OF CONTENTS1
                                                                                                                                PAGE

<S>     <C>        <C>                                                                                                           <C>
                                                                                                                                

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

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


ARTICLE 1         DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION..........................................................1
                  Section 101.  Definitions........................................................................................1
                  "Act"............................................................................................................1
                  "Additional Amounts".............................................................................................1
                  "Affiliate"......................................................................................................1
                  "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"...............................................................................................2
                  "Corporate Trust Office".........................................................................................2
                  "corporation"....................................................................................................2
                  "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".........................................................................................3
                  "Holder".........................................................................................................4
                  "Indenture"......................................................................................................4
                  "Indexed Security"...............................................................................................4
                  "interest".......................................................................................................4
                  "Interest Payment Date"..........................................................................................4
                  "Maturity".......................................................................................................4
                  "Officers' Certificate"..........................................................................................4
- --------
1        This Table of Contents shall not, for any purpose, be deemed to be part of this Indenture.


<PAGE>



                  "Opinion of Counsel".............................................................................................4
                  "Original Issue Discount Security"...............................................................................4
                  "Outstanding"....................................................................................................4
                  "Paying Agent"...................................................................................................5
                  "Person".........................................................................................................5
                  "Place of Payment"...............................................................................................5
                  "Predecessor Security"...........................................................................................5
                  "Redemption Date"................................................................................................5
                  "Redemption Price"...............................................................................................5
                  "Registered Security"............................................................................................5
                  "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"................................................................................................6
                  "Subsidiary".....................................................................................................6
                  "Trust Indenture Act" or "TIA"...................................................................................6
                  "Trustee"........................................................................................................6
                  "United States"..................................................................................................6
                  "United States person"...........................................................................................6
                  "Yield to Maturity"..............................................................................................7
                  Section 102.  Compliance Certificates and Opinions...............................................................7
                  Section 103.  Form of Documents Delivered to Trustee.............................................................7
                  Section 104.  Acts of Holders....................................................................................7
                  Section 105.  Notices, etc., to Trustee and Company..............................................................8
                  Section 106.  Notice to Holders; Waiver..........................................................................9
                  Section 107.  Effect of Headings and Table of Contents...........................................................9
                  Section 108.  Successors and Assigns.............................................................................9
                  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.............................................................................10

ARTICLE 2         SECURITIES FORMS................................................................................................10
                  Section 201.  Forms of Securities...............................................................................10
                  Section 202.  Form of Trustee's Certificate of Authentication...................................................11
                  Section 203.  Securities Issuable in Global Form................................................................11

ARTICLE 3         THE SECURITIES..................................................................................................11
                  Section 301.  Amount Unlimited; Issuable in Series..............................................................11
                  Section 302.  Denominations.....................................................................................14
                  Section 303.  Execution, Authentication, Delivery and Dating....................................................14
                  Section 304.  Temporary Securities..............................................................................16
                  Section 305.  Registration, Registration of Transfer and Exchange...............................................17
                  Section 306.  Mutilated, Destroyed, Lost and Stolen Securities..................................................19
                  Section 307.  Payment of Interest; Interest Rights Preserved....................................................20
                  Section 308.  Persons Deemed Owners.............................................................................22
                  Section 309.  Cancellation......................................................................................22
                  Section 310.  Computation of Interest...........................................................................22

                                      -ii-

<PAGE>




ARTICLE 4         SATISFACTION AND DISCHARGE......................................................................................22
                  Section 401.  Satisfaction and Discharge of Indenture...........................................................22
                  Section 402.  Application of Trust Funds........................................................................23

ARTICLE 5         REMEDIES........................................................................................................24
                  Section 501.  Events of Default.................................................................................24
                  Section 502.  Acceleration of Maturity; Rescission and Annulment................................................25
                  Section 503.  Collection of Indebtedness and Suits for Enforcement by Trustee...................................26
                  Section 504.  Trustee May File Proofs of Claim..................................................................26
                  Section 505.  Trustee May Enforce Claims Without Possession of Securities or Coupons............................27
                  Section 506.  Application of Money Collected....................................................................27
                  Section 507.  Limitation on Suits...............................................................................27
                  Section 508.  Unconditional Right of Holders to Receive Principal, Premium, if any, Interest and 
                                   Additional Amounts.............................................................................28
                  Section 509.  Restoration of Rights and Remedies................................................................28
                  Section 510.  Rights and Remedies Cumulative....................................................................28
                  Section 511.  Delay or Omission Not Waiver......................................................................28
                  Section 512.  Control by Holders of Securities..................................................................28
                  Section 513.  Waiver of Past Defaults...........................................................................28
                  Section 514.  Waiver of Usury, Stay or Extension Laws...........................................................29
                  Section 515.  Undertaking for Costs.............................................................................29

ARTICLE 6         THE TRUSTEE.....................................................................................................29
                  Section 601.  Notice of Defaults................................................................................29
                  Section 602.  Certain Rights of Trustee.........................................................................29
                  Section 603.  Not Responsible for Recitals or Issuance of Securities............................................30
                  Section 604.  May Hold Securities...............................................................................30
                  Section 605.  Money Held in Trust...............................................................................30
                  Section 606.  Compensation and Reimbursement....................................................................30
                  Section 607.  Corporate Trustee Required; Eligibility; Conflicting Interests....................................31
                  Section 608.  Resignation and Removal; Appointment of Successor.................................................31
                  Section 609.  Acceptance of Appointment by Successor............................................................32
                  Section 610.  Merger, Conversion, Consolidation or Succession to Business.......................................33
                  Section 611.  Appointment of Authentication Agent...............................................................33

ARTICLE 7         HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY...............................................................34
                  Section 701.  Disclosure of Names and Addresses of Holders......................................................34
                  Section 702.  Reports by Trustee................................................................................34
                  Section 703.  Reports by Company................................................................................34
                  Section 704.  Company to Furnish to Trustee Names and Addresses of Holders......................................35

ARTICLE 8         CONSOLIDATION, MERGER, SALE, LEASE OR CONVEYANCE................................................................35
                  Section 801.  Consolidations and Mergers of Company and Sales, Leases and Conveyances Permitted Subject
                                    to Certain Conditions.........................................................................35
                  Section 802.  Rights and Duties of Successor Corporation........................................................36
                  Section 803.  Officers' Certificate and Opinion of Counsel......................................................36

ARTICLE 9         SUPPLEMENTAL INDENTURES.........................................................................................36
                  Section 901.  Supplemental Indentures Without Consent of Holders................................................36
                  Section 902.  Supplemental Indentures with Consent of Holders...................................................37
                  Section 903.  Execution of Supplemental Indentures..............................................................38
                  Section 904.  Effect of Supplemental Indentures.................................................................38
                  Section 905.  Conformity with Trust Indenture Act...............................................................38

                                      -iii-

<PAGE>



                  Section 906.  Reference in Securities to Supplemental Indentures................................................38

ARTICLE 10        COVENANTS.......................................................................................................38
                  Section 1001.  Payment of Principal, Premium, if any, Interest and Additional Amounts...........................38
                  Section 1002.  Maintenance of Office or Agency..................................................................38
                  Section 1003.  Money for Securities Payments to Be Held in Trust................................................40
                  Section 1004.  Existence........................................................................................40
                  Section 1005.  Provision of Financial Information...............................................................41
                  Section 1006.  Statement as to Compliance.......................................................................41
                  Section 1007.  Additional Amounts...............................................................................41
                  Section 1008.  Waiver of Certain Covenants......................................................................42

ARTICLE 11        REDEMPTION OF SECURITIES........................................................................................42
                  Section 1101.  Applicability of Article.........................................................................42
                  Section 1102.  Election to Redeem; Notice to Trustee............................................................42
                  Section 1103.  Selection by Trustee of Securities to Be Redeemed................................................42
                  Section 1104.  Notice of Redemption.............................................................................42
                  Section 1105.  Deposit of Redemption Price......................................................................43
                  Section 1106.  Securities Payable on Redemption Date............................................................44
                  Section 1107.  Securities Redeemed in Part......................................................................44

ARTICLE 12        SINKING FUNDS...................................................................................................44
                  Section 1201.  Applicability of Article.........................................................................44
                  Section 1202.  Satisfaction of Sinking Fund Payments with Securities............................................45
                  Section 1203.  Redemption of Securities for Sinking Fund........................................................45

ARTICLE 13        REPAYMENT AT THE OPTION OF HOLDERS..............................................................................45
                  Section 1301.  Applicability of Article.........................................................................45
                  Section 1302.  Repayment of Securities..........................................................................45
                  Section 1303.  Exercise of Option...............................................................................45
                  Section 1304.  When Securities Presented for Repayment Become Due and Payable...................................46
                  Section 1305.  Securities Repaid in Part........................................................................46

ARTICLE 14        DEFEASANCE AND COVENANT DEFEASANCE..............................................................................47
                  Section 1401.  Applicability of Article; Company's Option to Effect Defeasance or Covenant Defeasance...........47
                  Section 1402.  Defeasance and Discharge.........................................................................47
                  Section 1403.  Covenant Defeasance..............................................................................47
                  Section 1404.  Conditions to Defeasance or Covenant Defeasance..................................................48
                  Section 1405.  Deposited Money and Government Obligations to Be Held in Trust; Other Miscellaneous
                                    Provisions....................................................................................49

ARTICLE 15        MEETINGS OF HOLDERS OF SECURITIES...............................................................................49
                  Section 1501.   Purposes for Which Meetings May Be Called.......................................................50
                  Section 1502.  Call, Notice and Place of Meetings...............................................................50
                  Section 1503.  Persons Entitled to Vote at Meetings.............................................................50
                  Section 1504.  Quorum; Action...................................................................................50
                  Section 1505.  Determination of Voting Rights; Conduct and Adjournment of Meetings..............................51
                  Section 1506.  Counting Votes and Recording Action of Meetings..................................................51

EXHIBIT A - FORMS OF CERTIFICATION...............................................................................................A-1
</TABLE>

                                      -iv-

<PAGE>



         INDENTURE, dated as of December 18, 1997, between HEALTH AND RETIREMENT
PROPERTIES  TRUST, a Maryland real estate investment trust  (hereinafter  called
the  "Company"),  having  its  principal  office at 400 Centre  Street,  Newton,
Massachusetts  02158  and  STATE  STREET  BANK AND  TRUST  COMPANY,  as  Trustee
hereunder (hereinafter called the "Trustee"), having its initial Corporate Trust
Office at Two International Place, Boston, Massachusetts 02110.

                             RECITALS OF THE COMPANY

         The Company  deems it  necessary  to issue from time to time for 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 1

             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 3, Article 5, Article 6 and
Article 10, 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.

         "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

                                                         

<PAGE>



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  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 Two  International
Place, Boston, Massachusetts 02110.


                                        2

<PAGE>



         "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 5.

         "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, 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

                                        3

<PAGE>

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.

         "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;
                                        4
<PAGE>

                  (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 14;

                  (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.

         "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.

                                        5
<PAGE>



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

         "Registered  Security" 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.

         "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.


                                        6

<PAGE>


         "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

                  (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.

                                        7

<PAGE>
         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  15,  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 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.

                                        8
<PAGE>

         (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:   Corporate  Trust  Department  Re:  Health  and  Retirement
         Properties Trust 6 3/4% Senior Notes due December 18, 2002; 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.

         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.

                                        9
<PAGE>

         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),  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  AMENDED  AND  RESTATED
DECLARATION  OF TRUST OF THE  COMPANY,  DATED  JULY 1,  1994,  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 "HEALTH AND  RETIREMENT  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 2

                                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,

                                       10

<PAGE>

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

         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

                                       11
<PAGE>

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 3

                                 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);

                  (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;


                                       12
<PAGE>
                  (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 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;

                                       13

<PAGE>
                  (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 14;

                  (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 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.
                                       14
<PAGE>
         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 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

                                       15
<PAGE>
         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.

         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

                                       16
<PAGE>

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.  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

                                       17

<PAGE>



to a beneficial  interest in a temporary global Security will be made unless and
until such interest in such temporary  global Security shall have been exchanged
for an interest in a definitive Security.  Any interest so received by Euroclear
and CEDEL and not paid as herein provided shall be returned to the Trustee prior
to the  expiration of two years after such Interest  Payment Date in order to be
repaid to the Company.

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

                                       18

<PAGE>



         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 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

                                       19

<PAGE>



business 15 days before selection of the Securities to be redeemed under Section
1103 and ending at the close of business on (A) if such  Securities are issuable
only as Registered Securities,  the day of the mailing of the relevant notice of
redemption and (B) if such Securities are issuable as Bearer Securities, the day
of the  first  publication  of the  relevant  notice of  redemption  or, if such
Securities  are  also  issuable  as  Registered   Securities  and  there  is  no
publication,  the  mailing  of the  relevant  notice of  redemption,  or (ii) to
register  the transfer of or exchange  any  Registered  Security so selected for
redemption in whole or in part,  except, in the case of any Registered  Security
to be redeemed  in part,  the portion  thereof not to be  redeemed,  or (iii) to
exchange  any Bearer  Security so  selected  for  redemption  except that such a
Bearer Security may be exchanged for a Registered Security of that series and 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 is
payable,

                                       20

<PAGE>



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 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

                                       21

<PAGE>



         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.  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

                                       22

<PAGE>
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 4

                           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 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


                                       23
<PAGE>
                  (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 5

                                    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 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  $20,000,000 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
         $20,000,000  becoming or being  declared  due and payable  prior to the
         date on which it would

                                       24
<PAGE>

         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  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:


                                       25

<PAGE>



                  (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
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.


                                       26

<PAGE>



         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,  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.


                                       27

<PAGE>



         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.

         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.


                                       28

<PAGE>



         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 9 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 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 6

                                   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,

                                       29

<PAGE>

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;

                  (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.

                                       30
<PAGE>
         Section 603. Not  Responsible  for Recitals or Issuance of  Securities.
The  recitals  contained  herein and in the  Securities,  except  the  Trustee's
certificate  of  authentication,  and in  any  coupons  shall  be  taken  as the
statements of the Company,  and neither the Trustee nor any Authenticating Agent
assumes  any  responsibility  for  their  correctness.   The  Trustee  makes  no
representations  as to the validity or  sufficiency  of this Indenture or of the
Securities  or  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);

                  (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.

                                       31
<PAGE>

         Section 608.  Resignation and Removal; Appointment of Successor.

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

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

                  (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.

                                       32

<PAGE>



         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 9 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  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

                                       33

<PAGE>



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  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



                                       34

<PAGE>



                           By:__________________________________
                               Authorized Officer


                                    ARTICLE 7

                HOLDERS' LISTS AND REPORTS BY TRUSTEE AND COMPANY

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


                                       35

<PAGE>

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

                                    ARTICLE 8

                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 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 9 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 9

                             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:

                                       36

<PAGE>
                  (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

                  (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

                                       37

<PAGE>



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:

                  (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 the opinion of the
Trustee

                                       38

<PAGE>



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 10

                                    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 account maintained with a bank located in the United
States; provided, however, that, if the Securities of a series are payable in

                                       39

<PAGE>
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

                  (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.

                                       40
<PAGE>
         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 8, 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.

         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

                                       41

<PAGE>
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 11

                            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 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

                                       42
<PAGE>
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,

                  (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,

                                       43
<PAGE>
                  (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  12,
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.

         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.
                                       44
<PAGE>
         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 12) 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 12

                                  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 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 13

                       REPAYMENT AT THE OPTION OF HOLDERS

                                       45
<PAGE>



         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  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

                                       46

<PAGE>



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 14

                       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,  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

                                       47

<PAGE>



Securities as  contemplated  by Section 1007,  (C) the rights,  powers,  trusts,
duties and immunities of the Trustee  hereunder and (D) this Article 14. Subject
to  compliance  with this  Article 14, 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 14  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  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.


                                       48

<PAGE>



                           (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.

                           (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

                                       49
<PAGE>
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 15

                        MEETINGS OF HOLDERS OF SECURITIES

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

         Section 1502. Call, Notice and Place of Meetings.

         (a) The Trustee may at any time call a meeting of Holders of Securities
of any series for any purpose specified in Section 1501, to be held at such time
and at such  place in the City of  Boston,  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

                                       50
<PAGE>
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.

         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
                                       51
<PAGE>
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
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, as of the day and year first above
written.

                            HEALTH AND RETIREMENT
                              PROPERTIES TRUST


                            By: /s/ David J. Hegarty
                                Title: President



                           STATE STREET BANK AND TRUST COMPANY


                            By: /s/ Robert L. Bice II
                              Title: Vice President


                                       52

<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.


                                       A-1

<PAGE>



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


Dated:                   , 19
[To be dated no earlier than the 15th day prior
to (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.


                                       A-3

<PAGE>


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


                                       A-4



                                                                     EXHIBIT 4.2

                             SUPPLEMENTAL INDENTURE

                                 by and between

                     HEALTH AND RETIREMENT PROPERTIES TRUST

                                       and

                       STATE STREET BANK AND TRUST COMPANY

                             as of December 18, 1997




           SUPPLEMENTAL TO THE INDENTURE DATED AS OF DECEMBER 18, 1997




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





                     HEALTH AND RETIREMENT PROPERTIES TRUST
             $150,000,000 6 3/4% Senior Notes due December 18, 2002

<PAGE>



         This SUPPLEMENTAL  INDENTURE (this  "Supplemental  Indenture") made and
entered into as of December 18, 1997 between  HEALTH AND  RETIREMENT  PROPERTIES
TRUST, a Maryland real estate investment trust (the "Company"), and STATE STREET
BANK  AND  TRUST  COMPANY,  a  Massachusetts  trust  company,  as  Trustee  (the
"Trustee").

                                WITNESSETH THAT:

         WHEREAS,  the Company and the Trustee have  executed  and  delivered an
Indenture,  dated as of  December  18, 1997 (the  "Indenture"),  relating to the
Company's issuance, from time to time, of various series of debt securities; and

         WHEREAS,  the Company has determined to issue debt securities  known as
its $150,000,000 6 3/4% Senior Notes due December 18, 2002; and

         WHEREAS,  the Indenture  provides that certain terms and conditions for
each series of debt securities issued by the Company thereunder may be set forth
in an indenture supplemental to the Indenture;

         NOW, THEREFORE, THIS SUPPLEMENTAL INDENTURE WITNESSETH:

                                    ARTICLE 1

                                  DEFINED TERMS

         Section 1.1 The following  definitions  supplement,  and, to the extent
inconsistent with, replace the definitions in Section 1.1 of the Indenture:

         "Acquired  Debt"  means Debt of a Person (i)  existing at the time such
Person becomes a Subsidiary or (ii) assumed in connection  with the  acquisition
of assets from such Person, in each case, other than Debt incurred in connection
with,  or in  contemplation  of, such  Person's  becoming a  Subsidiary  or such
acquisition.  Acquired  Debt shall be deemed to be  incurred  on the date of the
related  acquisition  of assets from any Person or the date the acquired  Person
becomes a Subsidiary.

         "Annual Debt Service" as of any date means the maximum  amount which is
expensed  in any  12-month  period for  interest  on Debt of the Company and its
Subsidiaries.

         "Business  Day" means any day other than a Saturday  or Sunday or a day
on which  banking  institutions  in The City of New York or in the city in which
the Corporate Trust Office of the Trustee is located, are required or authorized
to close.

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

         "Consolidated  Income  Available for Debt Service" for any period means
Earnings from Operations of the Company and its Subsidiaries  plus amounts which
have been deducted, and minus

                                                        
<PAGE>



amounts which have been added,  for the  following  (without  duplication):  (i)
interest on Debt of the Company and its  Subsidiaries,  (ii) provision for taxes
of the Company and its Subsidiaries based on income,  (iii) amortization of debt
discount and deferred  financing costs,  (iv) provisions for gains and losses on
properties and property  depreciation  and  amortization,  (v) the effect of any
noncash charge  resulting from a change in accounting  principles in determining
Earnings  from  Operations  for such  period and (vi)  amortization  of deferred
charges.

         "Debt" of the Company or any Subsidiary means, without duplication, any
indebtedness  of the Company or any Subsidiary,  whether or not  contingent,  in
respect of (i)  borrowed  money or  evidenced  by bonds,  notes,  debentures  or
similar  instruments,  (ii)  indebtedness  for  borrowed  money  secured  by any
Encumbrance  existing on property owned by the Company or any Subsidiary,  (iii)
the reimbursement  obligations,  contingent or otherwise, in connection with any
letters of credit  actually  issued  (other  than  letters  of credit  issued to
provide credit  enhancement or support with respect to other indebtedness of the
Company or any  Subsidiary  otherwise  reflected as Debt  hereunder)  or amounts
representing  the  balance  deferred  and  unpaid of the  purchase  price of any
property  or  services,  except any such  balance  that  constitutes  an accrued
expense or trade payable,  or all  conditional  sale  obligations or obligations
under  any  title  retention  agreement,   (iv)  the  principal  amount  of  all
obligations  of the  Company  or any  Subsidiary  with  respect  to  redemption,
repayment or other  repurchase of any  Disqualified  Stock,  or (v) any lease of
property by the Company or any  Subsidiary  as lessee  which is reflected on the
Company's  consolidated  balance sheet as a capitalized lease in accordance with
GAAP,  to the  extent,  in the case of items of  indebtedness  under (i) through
(iii) above,  that any such items (other than letters of credit) would appear as
a liability on the Company's consolidated balance sheet in accordance with GAAP,
and also includes,  to the extent not otherwise included,  any obligation by the
Company or any Subsidiary to be liable for, or to pay, as obligor,  guarantor or
otherwise  (other than for  purposes of  collection  in the  ordinary  course of
business), Debt of another Person (other than the Company or any Subsidiary) (it
being  understood that Debt shall be deemed to be incurred by the Company or any
Subsidiary  whenever  the  Company  or such  Subsidiary  shall  create,  assume,
guarantee or otherwise become liable in respect thereof).

         "Disqualified  Stock"  means,  with respect to any Person,  any Capital
Stock of such Person which by the terms of such  Capital  Stock (or by the terms
of any security into which it is convertible or for which it is  exchangeable or
exercisable),  upon the  happening of any event or  otherwise  (i) matures or is
mandatorily  redeemable,  pursuant to a sinking  fund  obligation  or  otherwise
(other than  Capital  Stock which is  redeemable  solely in exchange  for common
stock or shares),  (ii) is convertible  into or  exchangeable or exercisable for
Debt or  Disqualified  Stock, or (iii) is redeemable at the option of the holder
thereof,  in whole or in part (other  than  Capital  Stock  which is  redeemable
solely in exchange for common stock or shares),  in each case on or prior to the
Stated Maturity of the Notes.

         "Earnings from Operations" for any period means net earnings  excluding
gains  and  losses on sales of  investments,  extraordinary  items and  property
valuation  losses,  as reflected in the financial  statements of the Company and
its  Subsidiaries  for  such  period,  determined  on a  consolidated  basis  in
accordance with GAAP.


                                       -2-

<PAGE>

         "Encumbrance"  means any  mortgage,  lien,  charge,  pledge or security
interest of any kind.

         "Exchange  Notes"  means the  senior  notes of the  Company  with terms
substantially  identical to the 6 3/4% Senior Notes due December 18, 2002 of the
Company  issued  in the  Exchange  Offer  made by the  Company  pursuant  to the
Registration Rights Agreement and this Supplemental Indenture.

         "Exchange   Offer"  means  the  exchange  offer  registered  under  the
Securities  Act  made in  accordance  with  the  Registration  Rights  Agreement
pursuant to which the Company  will  exchange  the Notes for senior notes of the
Company with substantially identical terms.

         "Initial  Purchaser"  means  Merrill  Lynch,  Pierce,  Fenner  &  Smith
Incorporated

         "Interest Payment Date" means any date interest is paid on the Notes.

         "Issuance  Date"  means  the  closing  date for the  sale and  original
issuance of the Notes.

         "Liquidated Damages" has the meaning set out in the Registration Rights
Agreement.

         "Make-Whole  Amount" means, in connection with any optional  redemption
or  accelerated  payment of any Note,  the excess,  if any, of (i) the aggregate
present value as of the date of such  redemption or accelerated  payment of each
dollar of principal being redeemed or paid and the amount of interest (exclusive
of interest accrued to the date of redemption or accelerated payment) that would
have been payable in respect of such dollar if such  redemption  or  accelerated
payment had not been made,  determined by  discounting,  on a semiannual  basis,
such principal and interest at the  Reinvestment  Rate  (determined on the third
Business  Day  preceding  the  date  such  notice  of  redemption  is  given  or
declaration of  acceleration  is made) from the  respective  dates on which such
principal and interest would have been payable if such redemption or accelerated
payment had not been made, over (ii) the aggregate principal amount of the Notes
being  redeemed or paid.  For purposes of this  Supplemental  Indenture  and the
Notes, references in the Indenture to the payment of the principal (and premium,
if any) and  interest on the Notes shall be deemed to include the payment of the
Make-Whole Amount, if any, due upon redemption with respect to the Notes.

         "Notes" means the Company's  $150,000,000 aggregate principal amount of
6 3/4%  Senior  Notes,  due  December  18,  2002,  issued  under this  Indenture
(including,  without  limitation,  any  Exchange  Notes issued in respect of the
Notes in connection with the Exchange  Offer),  as amended or supplemented  from
time to time.

         "Record  Date"  means the  fifteenth  calendar  day,  whether  or not a
Business Day, next preceding the applicable Interest Payment Date.

         "Registration   Rights   Agreement"  means  the   Registration   Rights
Agreement,  dated as of the  Issuance  Date,  by and among the  Company  and the
Initial Purchaser, as amended or supplemented from time to time.


                                       -3-

<PAGE>

         "Reinvestment  Rate" means 0.25%  (twenty-five  one  hundredths  of one
percent) plus the yield on treasury  securities at constant  maturity  under the
heading "Week  Ending"  published in the  Statistical  Release under the caption
"Treasury  Constant  Maturities" for the maturity (rounded to the nearest month)
corresponding  to the remaining life to maturity,  as of the payment date of the
principal  being  redeemed or paid. If no maturity  exactly  corresponds to such
maturity,  yields for the two published maturities most closely corresponding to
such maturity shall be calculated pursuant to the immediately preceding sentence
and the Reinvestment Rate shall be interpolated or extrapolated from such yields
on a  straight-line  basis,  rounding  in each of such  relevant  periods to the
nearest  month.  For purposes of  calculating  the  Reinvestment  Rate, the most
recent  Statistical  Release published prior to the date of determination of the
Make-Whole Amount shall be used.

         "QIB" means a "qualified institutional buyer" as defined in Rule 144A.

         "Regulation S" means Regulation S under the Securities Act.

         "Rule 144A" means Rule 144A under the Securities  Act, as such Rule may
be  amended  from time to time,  or any  similar  rule or  regulation  hereafter
adopted by the SEC.

         "SEC" means the Securities and Exchange Commission.

         "Secured Debt" means Debt secured by any mortgage, lien, charge, pledge
or security interest of any kind.

         "Securities Act" means the Securities Act of 1933, as amended.

         "Statistical  Release"  means the  statistical  release  designated "H.
15(519)" or any successor  publication  which is published weekly by the Federal
Reserve  System and which  establishes  yields on actively  traded United States
government  securities  adjusted to constant  maturities or, if such statistical
release  is  not  published  at  the  time  of  any  determination   under  this
Supplemental  Indenture,  then any publicly  available  source of similar market
data which shall be designated by the Company.

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

         "Total  Assets" as of any date  means the sum of (i) the  Undepreciated
Real Estate Assets and (ii) all other assets of the Company and its Subsidiaries
determined  in  accordance  with GAAP (but  excluding  accounts  receivable  and
intangibles).

         "Total  Unencumbered  Assets" means the sum of (i) those  Undepreciated
Real Estate Assets not subject to an Encumbrance for borrowed money and (ii) all
other assets of the Company and its

                                       -4-

<PAGE>



Subsidiaries  not subject to an  Encumbrance  for borrowed  money  determined in
accordance with GAAP (but excluding accounts receivable and intangibles).

         "Undepreciated  Real  Estate  Assets"  as of any  date  means  the cost
(original cost plus capital  improvements)  of real estate assets of the Company
and  its  Subsidiaries  on  such  date,  before  depreciation  and  amortization
determined on a consolidated basis in accordance with GAAP.

         "Unsecured  Debt"  means  Debt  which  is  not  secured  by  any of the
properties of the Company or any Subsidiary.


                                    ARTICLE 2

                               TERMS OF THE NOTES

         Section 2.1 Pursuant to Section 3.1 of the  Indenture,  the Notes shall
have the following terms and conditions:

         (a) Title; Limitation on Aggregate Principal Amount; Form of Notes. The
Notes  shall be known as the  Company's  $150,000,000  6 3/4%  Senior  Notes due
December 18, 2002. The Notes will be limited to an aggregate principal amount of
$150,000,000.   The  Notes   (together   with  the  Trustee's   certificate   of
authentication) shall be substantially in the form of Exhibit A hereto (with the
appropriate legend or legends placed thereon),  which is hereby  incorporated in
and made a part of this Supplemental Indenture.

         Notes  offered  and  sold  in  offshore  transactions  in  reliance  on
Regulation  S will  be  issued  initially  in the  form  of a  permanent  global
certificate in fully registered form without  interest coupons  substantially in
the  form as  above  provided  (the  "Unrestricted  Global  Note"),  and will be
registered  in the name of a nominee of DTC and  deposited  with the  Trustee as
custodian  for  DTC.  On or  prior  to the  40th  day  after  the  later  of the
commencement  of the  offering  of the Notes and the  Issuance  Date (which date
shall be  certified  to the  Trustee in an  Officer's  Certificate),  beneficial
interests in the Unrestricted  Global Note may be held only through Euroclear or
CEDEL.  Beginning 41 days after the later of the commencement of the offering of
the Notes and the Issuance  Date (but not earlier),  such  interests may also be
held through  organizations other than Euroclear and CEDEL that are participants
in the DTC system.

         Notes  offered  and  sold in  reliance  on  Rule  144A  will be  issued
initially in the form of a permanent global certificate in fully registered form
without  interest  coupons  substantially  in the  form as above  provided  (the
"Restricted  Global Note" and,  together with the Unrestricted  Global Note, the
"Global  Notes")  and will be  registered  in the name of a  nominee  of DTC and
deposited  with the  Trustee  as  custodian  for DTC.  The  Notes  sold to other
investors  in the  United  States  will  be  issued  initially  in the  form  of
individual  certificates in fully registered form, without coupons.  On or prior
to the 40th day after the later of the commencement of the offering of the Notes
and the Issuance Date, a beneficial interest in the Unrestricted Global Note may
be  transferred to a Person who takes delivery in the form of an interest in the
Restricted Global Note only upon receipt by the

                                       -5-

<PAGE>



Trustee of a written  certification  from the transferor to the effect that such
transfer is being made to a Person whom the transferor reasonably believes to be
a QIB  purchasing  Notes for its own account or an account with respect to which
it  exercises  sole   investment   discretion  in  a  transaction   meeting  the
requirements of Rule 144A and in accordance with any applicable  securities laws
of any  state of the  United  States or any other  jurisdiction  (a  "Restricted
Global Note Certification"). After such 40th day, such certification requirement
will no longer apply to such transfers.  Beneficial  interests in the Restricted
Global Note may be  transferred to a Person who takes delivery in the form of an
interest in the Unrestricted  Global Note, whether before, on or after such 40th
day,  only upon  receipt  by the  Trustee  of a written  certification  from the
transferor  to the effect that such  transfer is being made in  accordance  with
Rule  903 or 904 of  Regulation  S or Rule  144  under  the  Securities  Act (an
"Unrestricted Global Note Certification"). Any beneficial interest in one of the
Global Notes that is  transferred  to a Person who takes delivery in the form of
an  interest  in the other  Global  Note  will,  upon  transfer,  cease to be an
interest in such  Global  Note and will  become an interest in the other  Global
Note and,  accordingly,  will thereafter be subject to all transfer restrictions
and other procedures and restrictions applicable to beneficial interests in such
other Global Note for as long as it remains such an interest.

         Ownership of  beneficial  interests in a Global Note will be limited to
Persons  who have  accounts  with DTC ("DTC  Participants")  or Persons who hold
interests  through DTC  Participants.  Ownership of beneficial  interests in the
Global  Notes  will be shown on,  and the  transfer  of that  ownership  will be
effected only through, records maintained by DTC or its nominee (with respect to
interests of DTC Participants) and the records of DTC Participants (with respect
to interests of Persons other than DTC Participants).

         Individual  definitive  Notes  issued in  exchange  for the  Restricted
Global Note will bear, and be subject to, such legend as the Company requires in
order to assure  compliance with any applicable law (which  requirement shall be
evidenced  by  delivery  to the Trustee of a Company  Order  setting  forth such
legend). The holder of a restricted individual definitive Note may transfer such
Note,  subject to  compliance  with the  provisions of the legend as provided in
paragraph (d) below. Upon the transfer, exchange or replacement of Notes bearing
the legend,  or upon specific  request for removal of the legend on a Note,  the
Company will deliver and the Trustee will authenticate only Notes that bear such
legend,  or will refuse to remove such legend,  as the case may be, unless there
is  delivered to the Company such  satisfactory  evidence,  which may include an
opinion of counsel,  as may reasonably be required by the Company,  that neither
the legend nor the  restrictions  on transfer set forth  therein are required to
ensure  compliance  with  the  provisions  of the  Securities  Act.  Before  any
individual  definitive Note may be transferred to a Person who takes delivery in
the form of an interest in any Global Note, the  transferor  will be required to
provide the Trustee with a Restricted Global Note  Certification or Unrestricted
Global Note Certification, as the case may be.

         (b) Principal Repayment;  Currency. The Stated Maturity of the Notes is
December 18, 2002,  provided,  however, the Notes may be earlier redeemed at the
option of the Company as provided in paragraph (c) below.  The principal of each
Note  payable  on its  maturity  date  shall be paid  against  presentation  and
surrender  thereof  at  the  Corporate  Trust  Office  of the  Trustee,  located
initially at Two International Place, Boston,  Massachusetts 02110, in such coin
or currency of the

                                       -6-

<PAGE>



United  States of  America  as at the time of  payment  is legal  tender for the
payment of public or private debts. The Company will not pay Additional  Amounts
(as defined in the Indenture) on the Notes.

         (c)  Redemption  at the Option of the Company.  Prior to September  18,
2002,  the Notes will be subject to  redemption at any time at the option of the
Company,  in  whole or in part,  upon  not less  than 30 nor more  than 60 day's
notice to each Holder of Notes to be redeemed  at its address  appearing  in the
Security  Register,  at a price equal to the sum of (i) the principal  amount of
the Notes being  redeemed,  plus  accrued  and unpaid  interest  and  Liquidated
Damages,  if any, to but excluding the applicable  redemption  date and (ii) the
Make-Whole Amount. On and after September 18, 2002, the Notes will be subject to
redemption at any time at the option of the Company,  in whole or in part,  upon
not less than 30 nor more than 60 days' notice,  at a redemption  price equal to
the sum of the  principal  amount of the Notes being  redeemed  plus accrued and
unpaid interest and Liquidated  Damages, if any, to but excluding the applicable
redemption date.

         (d)  Restrictive  Legends.  Unless and until a Note is exchanged for an
Exchange  Note in  connection  with an  effective  registration  pursuant to the
Registration Rights Agreement,  each Note shall bear the following legend on the
face thereof:

         THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933,
         AS  AMENDED  (THE  "SECURITIES  ACT"),  AND  SUCH  SECURITY  MAY NOT BE
         OFFERED,  SOLD,  PLEDGED  OR  OTHERWISE  TRANSFERRED  EXCEPT (1) TO THE
         COMPANY,  (2) TO A PERSON  WHOM THE  SELLER  REASONABLY  BELIEVES  IS A
         QUALIFIED INSTITUTIONAL BUYER WITHIN THE MEANING OF RULE 144A UNDER THE
         SECURITIES ACT IN A TRANSACTION  MEETING THE REQUIREMENTS OF RULE 144A,
         (3) IN AN OFFSHORE  TRANSACTION IN ACCORDANCE WITH RULE 903 OR RULE 904
         OF REGULATION S UNDER THE SECURITIES  ACT, (4) PURSUANT TO AN EXEMPTION
         FROM  REGISTRATION  PROVIDED BY RULE 144 UNDER THE  SECURITIES  ACT (IF
         AVAILABLE),   OR  (5)  IN  A  TRANSACTION  OTHERWISE  EXEMPT  FROM  THE
         REGISTRATION  REQUIREMENTS  OF THE  SECURITIES  ACT,  IN  EACH  CASE IN
         ACCORDANCE WITH ANY OTHER APPLICABLE LAW.

         TRANSFERS AND EXCHANGES OF THIS SECURITY ARE SUBJECT TO RESTRICTIONS AS
         PROVIDED IN THE INDENTURE.

         Each  Global  Note,  whether or not an  Exchange  Note,  shall bear the
following legend on the face thereof:

         UNLESS THIS NOTE IS PRESENTED BY AN  AUTHORIZED  REPRESENTATIVE  OF THE
         DEPOSITORY  TRUST  COMPANY,  A NEW  YORK  CORPORATION  ("DTC"),  TO THE
         COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT,
         AND ANY NOTE ISSUED IS  REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH
         OTHER NAME AS IS REQUESTED BY AN AUTHORIZED  REPRESENTATIVE OF DTC (AND
         ANY PAYMENT IS MADE TO CEDE & CO. OR

                                       -7-

<PAGE>



         TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF
         DTC),  ANY TRANSFER,  PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE
         BY OR TO ANY  PERSON  IS  WRONGFUL  INASMUCH  AS THE  REGISTERED  OWNER
         HEREOF, CEDE & CO.,
         HAS AN INTEREST HEREIN.

         (e) Notices. All notices and other communications hereunder shall be in
writing and shall be deemed to have been duly given if mailed or  transmitted by
any standard form of telecommunication. Notices to the Company shall be directed
to it at 400 Centre Street,  Newton,  Massachusetts 02158,  Attention:  David J.
Hegarty,  President;  notices  to the  Trustee  shall be  directed  to it at Two
International Place, Boston,  Massachusetts  02110,  Attention:  Corporate Trust
Department  Re: Health and Retirement  Properties  Trust 6 3/4% Senior Notes due
December 18, 2002.

                                    ARTICLE 3

                              ADDITIONAL COVENANTS

         Section 3.1 In addition  to the  covenants  of the Company set forth in
Article Ten of the Indenture, for the benefit of the holders of the Notes:

         (a)      Limitations on Incurrence of Debt.

                  (i) The Company will not,  and will not permit any  Subsidiary
         to,  incur  any  Debt  if,  immediately  after  giving  effect  to  the
         incurrence of such  additional Debt and the application of the proceeds
         thereof,  the aggregate principal amount of all outstanding Debt of the
         Company and its  Subsidiaries  on a  consolidated  basis  determined in
         accordance  with GAAP is greater than 60% of the sum  ("Adjusted  Total
         Assets") of (without  duplication)  (i) the Total Assets of the Company
         and its  Subsidiaries as of the end of the calendar  quarter covered in
         the Company's  Annual  Report on Form 10-K, or the Quarterly  Report on
         Form 10-Q, as the case may be, most recently  filed with the Securities
         and Exchange  Commission (or, if such filing is not permitted under the
         Securities  Exchange Act of 1934, as amended (the "Exchange Act"), with
         the Trustee) prior to the incurrence of such  additional  Debt and (ii)
         the purchase  price of any real estate  assets or mortgages  receivable
         acquired,  and the amount of any securities  offering proceeds received
         (to the extent that such  proceeds were not used to acquire real estate
         assets or mortgages  receivable or used to reduce Debt), by the Company
         or any  Subsidiary  since the end of such calendar  quarter,  including
         those  proceeds  obtained in  connection  with the  incurrence  of such
         additional Debt.

                  (ii)  In  addition  to  the  foregoing   limitations   on  the
         incurrence  of Debt,  the  Company  will not,  and will not  permit any
         Subsidiary  to,  incur any Secured  Debt if,  immediately  after giving
         effect  to the  incurrence  of such  additional  Secured  Debt  and the
         application of the proceeds thereof,  the aggregate principal amount of
         all outstanding  Secured Debt of the Company and its  Subsidiaries on a
         consolidated basis is greater than 40% of Adjusted Total Assets.

                                       -8-

<PAGE>




                  (iii)  In  addition  to  the  foregoing   limitations  on  the
         Incurrence  of Debt,  the  Company  will not,  and will not  permit any
         Subsidiary  to,  incur  any Debt if the  ratio of  Consolidated  Income
         Available  for Debt  Service to the Annual  Debt  Service  for the four
         consecutive  fiscal  quarters most recently  ended prior to the date on
         which such  additional Debt is to be incurred shall have been less than
         1.5x,  on a pro forma  basis  after  giving  effect  thereto and to the
         application of the proceeds therefrom, and calculated on the assumption
         that (i) such Debt and any other Debt  incurred  by the Company and its
         Subsidiaries  since the first day of such  four-quarter  period and the
         application  of the proceeds  therefrom,  including to refinance  other
         Debt, had occurred at the beginning of such period;  (ii) the repayment
         or  retirement  of any other Debt by the Company  and its  Subsidiaries
         since the first date of such  four-quarter  period  had been  repaid or
         retired at the  beginning of such period  (except  that, in making such
         computation,  the amount of Debt under any  revolving  credit  facility
         shall be  computed  based upon the average  daily  balance of such Debt
         during  such  period);  (iii)  in the  case  of  Acquired  Debt or Debt
         incurred in connection with any acquisition since the first day of such
         four-quarter  period,  the related  acquisition  had occurred as of the
         first day of such period with  appropriate  adjustments with respect to
         such acquisition being included in such pro forma calculation; and (iv)
         in the case of any  acquisition  or  disposition  by the Company or its
         Subsidiaries  of any  asset or group of  assets  since the first day of
         such four-quarter period, whether by merger, stock purchase or sale, or
         asset purchase or sale, such  acquisition or disposition or any related
         repayment  of Debt had occurred as of the first day of such period with
         the  appropriate  adjustments  with  respect  to  such  acquisition  or
         disposition being included in such pro forma calculation.

         (b)  Maintenance  of Total  Unencumbered  Assets.  The  Company and its
Subsidiaries  will maintain Total  Unencumbered  Assets of not less than 200% of
the aggregate  outstanding principal amount of the Unsecured Debt of the Company
and its Subsidiaries on a consolidated basis.

         (c)  Applicability  of Discharge,  Defeasance  and Covenant  Defeasance
Provisions.  The  Discharge,  Defeasance and Covenant  Defeasance  provisions in
Article Fourteen of the Indenture will apply to the Notes.

                                    ARTICLE 4

                          ADDITIONAL EVENTS OF DEFAULT

         For purposes of this Supplemental  Indenture and the Notes, in addition
to the Events of Default  set forth in Section  5.1 of the  Indenture,  it shall
also  constitute  an "Event of Default"  if an event of default  under any bond,
debenture,  note or other evidence of indebtedness of the Company  (including an
event of default with respect to any other series of  securities),  or under any
mortgage,  indenture or other instrument of the Company under which there may be
issued or by which there may be secured or  evidenced  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,
shall  happen  and  shall  result in an  aggregate  principal  amount  exceeding
$20,000,000 becoming or

                                       -9-

<PAGE>



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 ten
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  25% in  principal  amount of the  outstanding  Notes,  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.

                                    ARTICLE 5

                                  EFFECTIVENESS

         This  Supplemental  Indenture shall be effective for all purposes as of
the date and time this Supplemental Indenture has been executed and delivered by
the Company and the Trustee in accordance with Article Nine of the Indenture. As
supplemented  hereby,  the Indenture is hereby  confirmed as being in full force
and effect.

                                    ARTICLE 6

                                  MISCELLANEOUS

         Section 6.1 In the event any provision of this  Supplemental  Indenture
shall be held invalid or unenforceable  by any court of competent  jurisdiction,
such holding shall not invalidate or render  unenforceable  any other  provision
hereof or any provision of the Indenture.

         Section 6.2 To the extent that any terms of the Notes are  inconsistent
with the  terms of the  Indenture,  the  terms of the  Notes  shall  govern  and
supersede such inconsistent terms.

         Section  6.3  This  Supplemental  Indenture  shall be  governed  by and
construed in accordance with the laws of The Commonwealth of Massachusetts.

         Section  6.4 This  Supplemental  Indenture  may be  executed in several
counterparts,  each  of  which  shall  be an  original  and all of  which  shall
constitute but one and the same instrument.

                                      -10-

<PAGE>



         IN WITNESS  WHEREOF,  the  Company  and the  Trustee  have  caused this
Supplemental  Indenture  to be  executed  as an  instrument  under seal in their
respective corporate names as of the date first above written.

                                     HEALTH AND RETIREMENT PROPERTIES TRUST



                                     By: /s/ David J. Hegarty
                                         Name: David J. Hegarty
                                         Title: President


                                     STATE STREET BANK AND TRUST COMPANY,
                                      as Trustee


                                     By: /s/ Robert L. Bice II
                                         Name: Robert L. Bice II
                                         Title: Vice President

                                      -11-

<PAGE>



                                    EXHIBIT A
                                 (Face of Note)

                    6 3/4% Senior Notes due December 18, 2002
No.                                                               $__________

                     HEALTH AND RETIREMENT PROPERTIES TRUST

promises  to  pay  to   _______________________________________   or  registered
assigns, the principal sum of  _____________________________________  Dollars on
December 18, 2002.

                  Interest Payment Dates: June 18 and December 18.
                  Record Dates:  June 3 and December 3.

CUSIP Nos.:       [422169AF9 (Rule 144A)
                  422169AG7 (Accredited Investor)
                  U40488 AC 9 (Regulation S)]

                                      HEALTH AND RETIREMENT PROPERTIES
                                      TRUST



                                      By:____________________________________
                                         Name:
                                         Title:
[SEAL]

Dated:

This is one of the Notes referred to in the within-mentioned Indenture:

STATE STREET BANK AND TRUST COMPANY, as Trustee


By:
         Authorized Signatory

                                      A - 1

<PAGE>



                                 (Back of Note)

                     HEALTH AND RETIREMENT PROPERTIES TRUST

                    6 3/4% Senior Notes due December 18, 2002

         Capitalized terms used herein have the meanings assigned to them in the
Indenture (as defined below) unless otherwise indicated.

         1. Interest.  Health and Retirement  Properties  Trust, a Maryland real
estate  investment  trust  (the  "Company"),  promises  to pay  interest  on the
principal amount of this Note at the rate and in the manner specified below.

         The Company shall pay in cash interest on the principal  amount of this
Note  at  the  rate  per  annum  of  6  3/4%.  The  Company  will  pay  interest
semi-annually in arrears on June 18 and December 18 of each year,  commencing on
June 18,  1998 or if any  such  day is not a  Business  Day (as  defined  in the
Indenture),  on the next  succeeding  Business  Day (each an  "Interest  Payment
Date"), to Holders of record on the immediately preceding June 3 and December 3.

         Interest will be computed on the basis of a 360-day year  consisting of
twelve 30-day  months.  Interest shall accrue from the most recent date to which
interest  has been paid or, if no interest  has been paid,  from the date of the
original issuance of the Notes.

         2.  Method of  Payment.  The  Company  will pay  interest  on the Notes
(except defaulted  interest) to the Persons who are registered  Holders of Notes
at the close of business on the record date next preceding the Interest  Payment
Date,  even if such Notes are  canceled  after such record date and on or before
such Interest Payment Date. The Company will pay principal and interest in money
of the United  States that at the time of payment is legal tender for payment of
public and private debts. The Company,  however, may pay principal,  premium, if
any, and interest by check payable in such money.  It may mail an interest check
to a Holder's registered address.

         3.  Indenture.  The Company  issued the Notes under an Indenture  and a
Supplemental  Indenture,  each dated as of December  18, 1997 (the  "Indenture")
between the Company and the Trustee. The terms of the Notes include those stated
in the  Indenture and those made part of the Indenture by reference to the Trust
Indenture  Act of 1939 (15 U.S.  Code ss.ss.  77aaa-77bbbb)  as in effect on the
date of the Indenture.  The Notes are subject to all such terms,  and Holders of
the Notes are  referred to the  Indenture  and such act for a statement  of such
terms. The terms of the Indenture shall govern any  inconsistencies  between the
Indenture and the Notes.  The Notes are  unsecured  general  obligations  of the
Company limited to $150,000,000 in aggregate principal amount.

         4. Optional Redemption.  Prior to September 18, 2002, the Notes will be
subject to redemption  at any time at the option of the Company,  in whole or in
part, upon not less than 30 nor more than 60 days' notice, at a redemption price
equal to the sum of (i) the principal  amount of the Notes being redeemed,  plus
accrued  and  unpaid  interest  and  Liquidated   Damages  (as  defined  in  the
Supplemental Indenture), if any, to but excluding the applicable redemption date
and (ii) the Make-
                                      A-2
<PAGE>

Whole  Amount.  On and after  September  18, 2002,  the Notes will be subject to
redemption at any time at the option of the Company,  in whole or in part,  upon
not less than 30 nor more than 60 days' notice,  at a redemption  price equal to
the sum of (i) the principal  amount of the Notes being  redeemed,  plus accrued
and unpaid  interest  and  Liquidated  Damages,  if any,  to but  excluding  the
applicable redemption date.

         As used herein the term  "Make-Whole  Amount" means, in connection with
any optional  redemption or accelerated payment of any Note, the excess, if any,
of (i)  the  aggregate  present  value  as of the  date of  such  redemption  or
accelerated  payment of each dollar of principal  being redeemed or paid and the
amount of interest  (exclusive of interest  accrued to the date of redemption or
accelerated  payment)  that would have been payable in respect of such dollar if
such  redemption  or  accelerated  payment  had not  been  made,  determined  by
discounting,  on  a  semiannual  basis,  such  principal  and  interest  at  the
Reinvestment  Rate (as defined  herein)  (determined  on the third  Business Day
preceding  the date  such  notice  of  redemption  is given  or  declaration  of
acceleration  is made) from the  respective  dates on which such  principal  and
interest would have been payable if such  redemption or accelerated  payment had
not been  made,  over (ii) the  aggregate  principal  amount of the Notes  being
redeemed or paid.

         As used herein the term  "Reinvestment  Rate" means 0.25%  (twenty-five
one hundredths of one percent) plus the yield on treasury securities at constant
maturity under the heading "Week Ending"  published in the  Statistical  Release
(as defined  herein) under the caption  "Treasury  Constant  Maturities" for the
maturity  (rounded to the nearest month)  corresponding to the remaining life to
maturity,  as of the payment date of the principal being redeemed or paid. If no
maturity  exactly  corresponds  to such  maturity,  yields for the two published
maturities  most closely  corresponding  to such  maturity  shall be  calculated
pursuant to the immediately  preceding  sentence and the Reinvestment Rate shall
be  interpolated  or  extrapolated  from such yields on a  straight-line  basis,
rounding in each of such relevant  periods to the nearest month. For purposes of
calculating the Reinvestment Rate, the most recent Statistical Release published
prior to the date of determination of the Make-Whole Amount shall be used.

         As used herein the term  "Statistical  Release"  means the  statistical
release designated "H. 15(519)" or any successor  publication which is published
weekly by the Federal  Reserve System and which  establishes  yields on actively
traded United States government  securities  adjusted to constant maturities or,
if such  statistical  release is not published at the time of any  determination
under the Supplemental  Indenture,  then such other reasonably  comparable index
which shall be designated by the Company.

         5.  Mandatory  Redemption.  The  Company  shall not be required to make
sinking fund or redemption payments with respect to the Notes.

         6. Notice of Redemption.  Notice of redemption shall be mailed at least
30 days but not more than 60 days before the  redemption  date to each Holder of
Notes to be redeemed at its  registered  address.  Notes may be redeemed in part
but only in whole multiples of $1,000,  unless all of the Notes held by a Holder
are to be redeemed.  On and after the redemption date, interest ceases to accrue
on Notes or portions of them called for redemption.

                                      A -3

<PAGE>




         7. Denominations,  Transfer, Exchange. The Notes are in registered form
without coupons in denominations of $100,000 and integral multiples of $1,000 in
excess  thereof.  The  transfer  of Notes  may be  registered  and  Notes may be
exchanged  as  provided  in the  Indenture.  The  Registrar  and the Trustee may
require a Holder,  among other things, to furnish  appropriate  endorsements and
transfer documents and to pay any taxes and fees required by law or permitted by
the  Indenture.  The Registrar need not exchange or register the transfer of any
Note or portion of a Note selected for redemption. Also, it need not exchange or
register the transfer of any Notes for a period of 15 days before the mailing of
a notice of redemption of Notes,  or during the period between a record date and
the corresponding Interest Payment Date.

         8.  Defaults and  Remedies.  In case an Event of Default (as defined in
the Indenture)  with respect to the Notes shall have occurred and be continuing,
the principal hereof may be declared,  and upon such  declaration  shall become,
due and payable,  in the manner,  with the effect and subject to the  provisions
provided in the Indenture.

         9. Actions of Holders. The Indenture contains provisions permitting the
holders of not less than a majority  of the  aggregate  principal  amount of the
outstanding  Notes, on behalf of the holders of all such Notes at a meeting duly
called and held as provided in the Indenture, to make, give or take any request,
demand,  authorization,  direction,  notice,  consent,  waiver  or other  action
provided  in the  Indenture  to be made,  given or taken by the  holders  of the
Notes, including without limitation,  waiving (a) compliance by the Company with
certain  provisions of the  Indenture,  and (b) certain past defaults  under the
Indenture and their consequences. Any resolution passed or decision taken at any
meeting of the holders of the Notes in  accordance  with the  provisions  of the
Indenture  shall be conclusive and binding upon such holders and upon all future
holders of this Note and other Notes  issued upon the  registration  of transfer
hereof or in exchange heretofore or in lieu hereof

         10. Persons Deemed Owners. The Company,  the Trustee,  and any agent of
the Company or the Trustee may deem and treat the Person in whose name this Note
is registered on the Security Register as its absolute owner for all purposes.

         11. Authentication. This Note shall not be valid until authenticated by
the manual signature of the Trustee or an authenticating agent.

         12.  [Holders'  Compliance with  Registration  Rights  Agreement.1 Each
Holder of a Note,  by his  acceptance  thereof,  acknowledges  and agrees to the
provisions of the Registration  Rights Agreement,  dated as of December 18, 1997
among  the  Company  and  the  Initial   Purchaser  (as  defined  therein)  (the
"Registration  Rights Agreement"),  including but not limited to the obligations
of the Holders with respect to a  registration  and the  indemnification  of the
Company and the Initial  Purchaser (as defined  therein) to the extent  provided
therein.]

- --------
     1 This paragraph should be deleted from Exchange Notes.

                                      A - 4

<PAGE>



         13.   Governing   Law.  THE  INTERNAL  LAW  OF  THE   COMMONWEALTH   OF
MASSACHUSETTS SHALL GOVERN AND BE USED TO CONSTRUE THE INDENTURE AND THE NOTES.

         14. No Personal  Liability.  THE AMENDED AND  RESTATED  DECLARATION  OF
TRUST OF THE  COMPANY,  DATED JULY 1, 1994, 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 "HEALTH AND RETIREMENT  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.

         The Company will furnish to any Holder upon written request and without
charge a copy of the Indenture and/or the Registration Rights Agreement. Request
may be made to:

                           Health and Retirement Properties Trust
                           400 Centre Street
                           Newton, MA 02158
                           Telecopier No.:  (617) 332-2261
                           Attention: President

                                      A - 5

<PAGE>


                                 ASSIGNMENT FORM


         To assign  this Note,  fill in the form  below:  (I) or (we) assign and
transfer this Note to


                  (Insert assignee's soc. sec. or tax I.D. no.)




              (Print or type assignee's name, address and zip code)

and irrevocably appoint
to  transfer  this Note on the books of the  Company.  The agent may  substitute
another to act for him.



Date:

                                         Your Signature:
                                        (Sign exactly as your name appears 
                                         on the face of this Note)

Signature Guarantee:


                                                                     EXHIBIT 4.3

                     HEALTH AND RETIREMENT PROPERTIES TRUST
                    (a Maryland real estate investment trust)

             $150,000,000 6 3/4% Senior Notes due December 18, 2002



                          REGISTRATION RIGHTS AGREEMENT


                                                          December 18, 1997


Merrill Lynch & Co.
Merrill Lynch, Pierce, Fenner & Smith
        Incorporated
North Tower
World Financial Center
New York,  New York 10281-1326

Ladies and Gentlemen:

         Health  and  Retirement   Properties  Trust,  a  Maryland  real  estate
investment trust (the "Company"),  proposes to issue and sell to Merrill Lynch &
Co., Merrill Lynch, Pierce, Fenner & Smith Incorporated  ("Merrill Lynch" or the
"Initial  Purchaser"),  upon the terms set forth in a purchase  agreement  dated
December 15, 1997 (the "Purchase  Agreement"),  $150,000,000  of the Company's 6
3/4% Senior Notes due December 18, 2002 (the "Notes").  The Notes will be issued
under an  indenture  and  supplemental  indenture to be dated as of December 18,
1997 (together,  the "Indenture")  between the Company and State Street Bank and
Trust  Company,  as trustee (the  "Trustee").  Execution of this  Agreement is a
condition to Closing under the Purchase Agreement.

         As an  inducement  to you to enter into the Purchase  Agreement  and in
satisfaction of a condition to your obligations  thereunder,  the Company agrees
with you,  (i) for your  benefit  and (ii) for the benefit of the holders of the
Notes from time to time (each of the  foregoing,  a "Holder" and  together,  the
"Holders"), as follows:

                  1.   Definitions.   Capitalized   terms  used  herein  without
definition  shall  have  their  respective  meanings  set forth in the  Purchase
Agreement.  As used in this Agreement,  the following  capitalized defined terms
shall have the following meanings:

<PAGE>



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

                  "Affiliate"  shall have the same meaning given to that term in
Rule 405 of the Act or any successor rule thereunder.

                  "Closing  Time"  has the  meaning  set  forth in the  Purchase
Agreement.

                  "Commission" means the Securities and Exchange Commission.

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

                  "Exchange  Notes"  means,  in  respect  of the  Notes,  a like
principal  amount of debt  securities  of the Company  identical in all material
respects to, and entitled to substantially the same benefits of the Notes.

                  "Exchange Offer Registration  Period" means the 120-day period
following  the issuance of the Exchange  Notes,  exclusive of any period  during
which any stop order  shall be in effect  suspending  the  effectiveness  of the
Exchange Offer Registration Statement.

                  "Exchange Offer  Registration  Statement" means a registration
statement  of the Company on an  appropriate  form under the Act with respect to
the  Registered  Exchange  Offer,  and all  amendments  and  supplements to such
registration  statement,  including  post-effective  amendments,  in  each  case
including  the  Prospectus  contained  therein,  all  exhibits  thereto  and all
material incorporated by reference therein.

                  "Exchanging  Dealer"  means any Holder  (which may include the
Initial Purchaser) which is a broker-dealer  electing to exchange Notes acquired
for its own account as a result of  market-making  activities  or other  trading
activities for Exchange Notes.

                  "Final Offering Memorandum" has the meaning set forth in the
Purchase Agreement.

                  "Holder"  means  the  Initial  Purchaser,  for so  long as the
Initial  Purchaser  shall hold  Registrable  Notes,  and each of its successors,
assigns and direct and indirect  transferees  who become  holders of Registrable
Notes.


                                        2

<PAGE>


                  "Indenture" has the meaning set forth in the preamble hereto.

                  "Liquidated Damages" has the meaning set forth in Section 8(a)
hereof.

                  "Majority  Holders"  means the  Holders of a  majority  of the
aggregate  principal  amount  of  securities  registered  under  a  Registration
Statement.

                  "Managing   Underwriters"   means  the  investment  banker  or
investment bankers and manager or managers that shall administer an underwritten
offering.

                  "Notes" has the meaning set forth in the preamble hereto.

                  "Prospectus" means the prospectus included in any Registration
Statement (including a prospectus that discloses information  previously omitted
from a  prospectus  filed  as part of an  effective  registration  statement  in
reliance  upon Rule 430A  under the Act),  as  amended  or  supplemented  by any
prospectus supplement,  with respect to the terms of the offering of any portion
of the  Registrable  Notes or the Exchange Notes,  covered by such  Registration
Statement,  and all amendments  and  supplements  to the  Prospectus,  including
post-effective amendments.

                  "Registrable Notes" shall meant the Notes; provided,  however,
that Notes shall cease to be Registrable Notes when (i) a Registration Statement
with respect to such Notes shall have been declared  effective under the Act and
such Notes shall have been disposed of pursuant to such Registration  Statement,
(ii) such Notes  shall have been sold  pursuant  to Rule  144(k) (or any similar
rule then in effect,  but not Rule 144A)  under the Act,  (iii) such Notes shall
have  ceased to be  outstanding,  (iv) the Notes shall have been  exchanged  for
Exchange Notes which may be transferred without restriction under the Act or (v)
the Company has completed the  Registered  Exchange Offer and the holder of such
Notes did not exchange such Notes for a like principal amount of Exchange Notes.

                  "Registered  Exchange  Offer" means the proposed  offer to the
Holders to issue and deliver to such Holders,  with respect to the Notes, a like
principal amount of Exchange Notes, in exchange for the Notes.

                  "Registration Statement" means any Exchange Offer Registration
Statement or Shelf  Registration  Statement  that covers any of the  Registrable
Notes or the Exchange Notes pursuant to the  provisions of this  Agreement,  and
amendments  and  


                                        3

<PAGE>


supplements to such registration statement, including post-effective amendments,
in each case including the Prospectus  contained  therein,  all exhibits thereto
and all material incorporated by reference therein.

                  "Shelf Registration" means a registration effected pursuant
to Section 3 hereof.

                  "Shelf  Registration  Event"  has the  meaning  set  forth  in
Section 3 hereof.

                  "Shelf  Registration  Period"  has the  meaning  set  forth in
Section 3(b) hereof.

                  "Shelf  Registration  Statement" means a "shelf"  registration
statement of the Company  pursuant to the  provisions  of Section 3 hereof which
covers some or all of the  Registrable  Notes on an appropriate  form under Rule
415 under the Act,  or any similar  rule that may be adopted by the  Commission,
and  amendments  and  supplements  to  such  registration  statement,  including
post-effective  amendments,  in each case  including  the  Prospectus  contained
therein,  all  exhibits  thereto  and all  material  incorporated  by  reference
therein.

                  "Special Counsel" means Brown & Wood LLP or such other counsel
as shall be  specified  by the Majority  Holders of  securities  included in the
relevant Registration Statement,  the fees and expenses of which will be paid by
the Company pursuant to Section 5 hereof.

                  "Trustee" has the meaning set forth in the preamble hereto.

                  "Underwriter"  means any  underwriter of Registrable  Notes in
connection with an offering thereof under a Shelf Registration Statement.

                  2.  Registered  Exchange  Offer;  Resales of Exchange Notes by
Exchanging  Dealers.  Unless  prohibited  by law or Commission  policy:  (a) The
Company shall  prepare and, not later than 105 days  following the Closing Time,
shall file with the Commission the Exchange Offer  Registration  Statement.  The
Company  shall use its  reasonable  best  efforts  to cause the  Exchange  Offer
Registration  Statement to become effective under the Act within 150 days of the
Closing Time.

                  (b) Upon the effectiveness of the Exchange Offer  Registration
Statement,  the  Company  shall use its best  efforts  to cause  the  Registered
Exchange Offer to be consummated within the sooner to occur of 45 days after the
effective  date of the Exchange  Offer  Registration  Date or 180 days after the
Closing


                                        4

<PAGE>



Time, it being the objective of such  Registered  Exchange  Offer to enable each
Holder electing to exchange  Registrable Notes for Exchange Notes (assuming that
such Holder is not an  affiliate  of the Company  within the meaning of the Act,
acquires the Exchange Notes in the ordinary course of such Holder's business and
has no arrangements  with any person to participate in the distribution  (within
the meaning of the Act) of the Exchange  Notes) to transfer such Exchange  Notes
from and after their receipt without any  limitations or restrictions  under the
Act.

                  (c) In connection  with the  Registered  Exchange  Offer,  the
Company shall:

                  (i) mail to each Holder a copy of the Prospectus  forming part
         of  the  Exchange  Offer  Registration  Statement,   together  with  an
         appropriate letter of transmittal and related documents;

                  (ii) keep the Registered Exchange Offer open for not less than
         20 business days after the date notice thereof is mailed to the Holders
         (or longer if required by applicable law);

                  (iii) utilize the services of a depositary  for the Registered
         Exchange Offer with an address in the Borough of Manhattan, The City of
         New York; and

                  (iv) comply in all material respects with all applicable laws.

                  (d) As soon as  practicable  after the close of the Registered
Exchange Offer, the Company shall:

                     (i) accept  for  exchange  all  Registrable  Notes  validly
         tendered and not withdrawn pursuant to the Registered Exchange Offer;

                    (ii) deliver to the Trustee for cancellation all Registrable
         Notes so accepted for exchange; and

                   (iii) cause the Trustee  promptly to authenticate and deliver
         to each Holder of tendered  Registrable Notes,  Exchange Notes equal in
         principal  amount to the  Registrable  Notes of such Holder so accepted
         for exchange therefor.

                  (e) The Initial  Purchaser and the Company  acknowledge  that,
pursuant to  interpretations  by the Commission's staff of Section 5 of the Act,
and in the absence of an applicable exemption therefrom,  each Exchanging Dealer
is required to deliver a Prospectus  in  connection  with a sale of any Exchange
Notes received by such Exchanging Dealer pursuant to the 


                                        5

<PAGE>



Registered Exchange Offer in exchange for Registrable Notes acquired for its own
account as a result of  market-making  activities or other  trading  activities.
Accordingly, the Company shall:

                     (i) include the  information set forth in Annex A hereto on
         the  cover  of  the   Prospectus   contained  in  the  Exchange   Offer
         Registration  Statement,  in  Annex B  hereto  in the  forepart  of the
         Exchange  Offer  Registration  Statement  in a  section  setting  forth
         details of the Registered  Exchange Offer, and in Annex C hereto in the
         underwriting or plan of distribution  section of the Prospectus forming
         a part of the Exchange Offer  Registration  Statement,  and include the
         information  set forth in Annex D hereto in the  Letter of  Transmittal
         delivered pursuant to the Registered Exchange Offer; and

                    (ii) use its  reasonable  best  efforts to keep the Exchange
         Offer  Registration  Statement  continuously  effective  under  the Act
         during the  Exchange  Offer  Registration  Period for  delivery  of the
         Prospectus  forming a part thereof by Exchanging  Dealers in connection
         with sales of Exchange  Securities  received pursuant to the Registered
         Exchange Offer, as contemplated by Section 4(h) below.

                  (f) In the event that the Initial Purchaser determines that it
is not eligible to participate in the Registered  Exchange Offer with respect to
the exchange of Notes  constituting any portion of its initial unsold allotment,
at the request of the Initial Purchaser,  the Company shall issue and deliver to
the Initial  Purchaser,  in exchange for such Notes, a like principal  amount of
Exchange Notes  (provided  that such Exchange  Notes shall include  legends with
respect to restrictions on transfer and shall be deemed  Registrable  Notes) and
the Company shall,  starting on the date of  effectiveness of the Exchange Offer
Registration  Statement  and  ending on the close of  business  on the 120th day
following  such  date,  make  available  as many  copies of the  Exchange  Offer
Registration  Statement  prospectus,  as amended or supplemented,  as reasonably
requested by the Initial  Purchaser.  The Company  shall seek to cause the CUSIP
Service Bureau to issue the same CUSIP  number(s) for such securities as for the
Exchange Notes issued  pursuant to the Registered  Exchange  Offer.  The Initial
Purchaser agrees to promptly notify the Company in writing  following the resale
of its initial allotment of Notes.

                  3. Shelf Registration. If, (i) because of any change in law or
currently  prevailing  interpretations  thereof by the  Commission's  staff, the
Company  determines  upon advice of its outside counsel that it is not permitted
to effect the Registered  Exchange Offer as contemplated by Section 2 hereof, or
(ii) for any other reason the Registered


                                        6

<PAGE>



Exchange  Offer is not  consummated  within the sooner to occur of 45 days after
the  effective  date of the Exchange  Offer  Registration  Statement or 180 days
after the Closing Time, or (iii) in the case of any Holder that  participates in
the Registered  Exchange  Offer,  such Holder does not receive freely  tradeable
Exchange Notes on the date of the exchange  (other than due solely to the status
of such Holder as an affiliate  of the Company  within the meaning of the Act or
as a  broker-dealer)  (it being understood that, for purposes of this Section 3,
(x) the requirement that the Initial Purchaser  deliver a Prospectus  containing
the information required by Items 507 and/or 508 of Regulation S-K under the Act
in connection  with sales of Exchange  Notes acquired in exchange for such Notes
shall result in such  Exchange  Notes being not "freely  tradeable"  but (y) the
requirement  that an Exchanging  Dealer deliver a Prospectus in connection  with
sales of Exchange Notes  acquired in the  Registered  Exchange Offer in exchange
for Notes  acquired as a result of  market-making  activities  or other  trading
activities shall not result in such Exchange Notes being not "freely tradeable")
(the events  described in clauses (i), (ii) and (iii) of this paragraph are each
referred to herein as a "Shelf Registration  Event"),  the following  provisions
shall apply:

                  (a) The Company shall promptly  deliver to the Holders written
notice of a Shelf  Registration Event and, as promptly as practicable (but in no
event more than 60 days after so required or requested  pursuant to this Section
3), file with the Commission  and thereafter use its reasonable  best efforts to
cause to be declared  effective  under the Act, a Shelf  Registration  Statement
relating to the offer and sale of the Registrable Notes by the Holders from time
to time in accordance with the methods of  distribution  elected by such Holders
and set forth in such Shelf Registration Statement; provided, however, that with
respect to Exchange  Notes  received by the Initial  Purchaser  in exchange  for
Notes  constituting  any portion of an unsold  allotment,  the  Company  may, if
permitted  by  current   interpretations  by  the  Commission's  staff,  file  a
post-effective   amendment  to  the  Exchange  Offer  Regis  tration   Statement
containing the  information  required by Regulation S-K Items 507 and/or 508, as
applicable,  in satisfaction of their  obligations under this paragraph (a) with
respect  thereto,  and any such Exchange  Offer  Registration  Statement,  as so
amended,  shall be referred to herein as, and governed by the provisions  herein
applicable to, a Shelf Registration Statement.

                  (b) The Company shall use its reasonable  best efforts to keep
the Shelf Registration  Statement  continuously effective in order to permit the
Prospectus  forming  part  thereof to be usable by  Holders  for a period of two
years after the  effective  date of the Shelf  Registration  Statement  (or, the
shorter  period 


                                        7

<PAGE>


provided  under Rule 144(k)) or such shorter period that will terminate when all
the Registrable Notes covered by the Shelf Registration Statement have been sold
pursuant  to the Shelf  Registration  Statement  (in any such case,  such period
being called the "Shelf Registration Period").

                  4.  Registration  Procedures.  In  connection  with any  Shelf
Registration  Statement  and,  to  the  extent  specified,  any  Exchange  Offer
Registration Statement, the following provisions shall apply:

                  (a) The Company shall furnish to the Initial Purchaser,  prior
         to  the  filing  thereof  with  the  Commission,  a copy  of any  Shelf
         Registration  Statement and any Exchange Offer Registration  Statement,
         and each amendment thereof and each amendment or supplement, if any, to
         the Prospectus  included  therein and the Company shall,  if reasonably
         requested,  promptly incorporate in such Registration  Statement,  such
         information  and comments as the Initial  Purchaser  reasonably  agrees
         with the Company and its counsel  should be included  therein  provided
         that the Company  shall not be  required to take any action  under this
         Section 4(a) that is not in the  reasonable  opinion of counsel for the
         Company in compliance with applicable law.

                  (b) The Company shall ensure that subject to Section 4(k), (i)
         any Registration Statement and any amendment thereto and any Prospectus
         forming a part thereof and any amendment or supplement thereto complies
         in all material respects with the Act, (ii) any Registration  Statement
         and any amendment thereto does not, when it becomes effective,  contain
         an untrue statement of a material fact or omit to state a material fact
         required  to be stated  therein  or  necessary  to make the  statements
         therein not  misleading  and (iii) any  Prospectus  forming part of any
         Registration  Statement,  and  any  amendment  or  supplement  to  such
         Prospectus,  does not,  during  the  period  when  delivery  thereof is
         required,  include an untrue  statement  of a material  fact or omit to
         state a material fact necessary in order to make the statements, in the
         light of the circumstances under which they were made, not misleading.

                  (c) (1) The Company shall advise the Initial Purchaser and, in
         the case of a Shelf Registration  Statement,  the Holders of securities
         covered thereby and, if requested by the Initial  Purchaser or any such
         Holder, confirm such advice in writing:

                              (i)  when  a   Registration   Statement   and  any
                  amendment  thereto has been filed with the Commission and when
                  a  Registration  Statement  or  any  post-effective  amendment
                  thereto has become effective; and



                                        8

<PAGE>



                             (ii)  of  any   request  by  the   Commission   for
                  amendments or supplements  to a Registration  Statement or the
                  Prospectus included therein or for additional information.

         (2)      The Company  shall  advise the Initial  Purchaser  and, in the
                  case  of  a  Shelf  Registration  Statement,  the  Holders  of
                  securities  covered  thereby,  and, in the case of an Exchange
                  Offer Registration Statement,  any Exchanging Dealer which has
                  provided in writing to the Company a  telephone  or  facsimile
                  number and address for  notices,  and, if  requested by you or
                  any such Holder or Exchanging  Dealer,  confirm such advice in
                  writing:

                              (i) of the Company  becoming aware of the issuance
                  by  the   Commission   of  any  stop  order   suspending   the
                  effectiveness of a Registration Statement or the initiation of
                  any proceedings for that purpose;

                             (ii)  of  the   receipt  by  the   Company  of  any
                  notification   with   respect   to  the   suspension   of  the
                  qualification  of the securities  included therein for sale in
                  any  jurisdiction  or the  initiation  or  threatening  of any
                  proceeding for such purpose; and

                            (iii) of the suspension of the use of a Prospectus.

                  (d)  Subject  to  Section  4(k),  the  Company  shall  use its
         reasonable   best  efforts  to  prevent  the  issuance  or  obtain  the
         withdrawal  of any order  suspending  the  effectiveness  or use of any
         Registration Statement at the earliest possible time.

                  (e) The Company  shall  furnish to each  Holder of  securities
         included  within  the  coverage  of any Shelf  Registration  Statement,
         without charge, at least one copy of such Shelf Registration  Statement
         and  any   post-effective   amendment  thereto,   including   financial
         statements  and  schedules,  and, if the Holder so requests in writing,
         all exhibits (including those incorporated by reference).

                  (f) Subject to Section  4(k),  the Company  shall,  during the
         Shelf  Registration  Period,  as promptly as is reasonably  practicable
         deliver to each Holder of  securities  included  within the coverage of
         any Shelf Registration Statement, without charge, as many copies of the
         Prospectus  (including each  preliminary  Prospectus)  included in such
         Shelf 


                                        9

<PAGE>

 
         Registration  Statement and any amendment or supplement thereto as such
         Holder may reasonably request; and subject to Section 4(k), the Company
         consents to the use of the  Prospectus  or any  amendment or supplement
         thereto  as to which no notice  has been given  pursuant  to  paragraph
         4(c)(2) by each of the selling Holders of securities in connection with
         the offering and sale of the  securities  covered by the  Prospectus or
         any amendment or supplement thereto.

                  (g) The Company shall furnish to each Exchanging  Dealer which
         so requests,  without  charge,  at least one copy of the Exchange Offer
         Registration  Statement  and  any  post-effective   amendment  thereto,
         including   financial   statements   and   schedules,   any   documents
         incorporated  by reference  therein,  and, if the Exchanging  Dealer so
         requests in writing,  all exhibits  (including  those  incorporated  by
         reference).

                  (h) Subject to Section  4(k),  the Company  shall,  during the
         Exchange Offer Registration Period, promptly deliver to each Exchanging
         Dealer,  without charge,  as many copies of the Prospectus  included in
         such  Exchange  Offer  Registration  Statement  and  any  amendment  or
         supplement thereto as such Exchanging Dealer may reasonably request for
         delivery  by  such  Exchanging  Dealer  in  connection  with a sale  of
         Exchange  Notes  received  by it pursuant  to the  Registered  Exchange
         Offer;  and subject to Section 4(k), the Company consents to the use of
         the  Prospectus or any  amendment or supplement  thereto as to which no
         notice  has  been  given  pursuant  to  paragraph  4(c)(2)  by any such
         Exchanging Dealer, as aforesaid.

                  (i)   Prior   to  the   Registered   Exchange   Offer  or  the
         effectiveness  of a  Registration  Statement,  the  Company  shall,  if
         required by applicable  law,  register or qualify or cooperate with the
         Holders of securities  included therein and their respective counsel in
         connection with the  registration or  qualification  of such securities
         for  offer  and  sale  under  the  securities  or blue sky laws of such
         jurisdictions as any such Holders  reasonably request in writing and do
         any and all other acts or things  necessary  or advisable to enable the
         offer and sale in such United States  jurisdictions  of the  securities
         covered by such Registration  Statement;  provided,  however,  that the
         Company will not be required to (i) qualify generally to do business or
         as  a  foreign  corporation  or  as  a  dealer  in  securities  in  any
         jurisdiction where it would not otherwise be required to so qualify but
         for this  Section  4(i),  (ii) file any  general  consent to service of
         process in any  jurisdiction  where it is not as of the date  hereof so
         subject or (iii) subject 

                                       10

<PAGE>


         itself  to  taxation  in any  jurisdiction  where  it is not  otherwise
         subject.

                  (j) Unless the  applicable  securities  shall be in book-entry
         only form,  the Company  shall  cooperate  with the Holders of Notes to
         facilitate  the  timely   preparation   and  delivery  of  certificates
         representing  Registrable Notes to be sold pursuant to any Registration
         Statement free of any restrictive legends and in such denominations and
         registered  in such  names as  Holders  may  request  prior to sales of
         Registrable Notes pursuant to such Registration Statement.

                  (k)  Upon  the  occurrence  of  any  event   contemplated   by
         paragraphs (c)(1)(ii) or (c)(2) above, the Company agrees to notify the
         Initial Purchaser,  and in the case of a Shelf Registration  Statement,
         the  Holders of  securities  covered  thereby,  to  suspend  use of the
         Prospectus  and the Company shall prepare,  using its  reasonable  best
         efforts to do so as soon as possible, a post-effective amendment to any
         Registration  Statement or an amendment  or  supplement  to the related
         Prospectus or file any other  required  document so that, as thereafter
         delivered  to  purchasers  of  the  securities  included  therein,  the
         Prospectus  will not include an untrue  statement of a material fact or
         omit to state  any  material  fact  necessary  to make  the  statements
         therein,  in the light of the circumstances under which they were made,
         not  misleading and the Initial  Purchaser,  and in the case of a Shelf
         Registration  Statement,  the Holders of  securities  covered  thereby,
         shall suspend use of such  Prospectus  until the Company has amended or
         supplemented  such  Prospectus so that such Prospectus does not contain
         any such untrue statement or omission.

                  (l) The Company shall use its reasonable best efforts to cause
         The  Depository  Trust  Company  ("DTC")  on  the  first  business  day
         following  the  effective  date  of any  Shelf  Registration  Statement
         hereunder  or as soon as  possible  thereafter  to remove  (i) from any
         existing  CUSIP  number   assigned  to  the  Registrable   Notes,   any
         designation  indicating  that such  Registrable  Notes are  "restricted
         securities,"  which efforts  shall include  delivery to DTC of a letter
         executed by the Company substantially in the form of Annex E hereto and
         (ii) any other stop or restriction on DTC's system with respect to such
         Registrable  Notes.  In the event the Company is unable to cause DTC to
         take the actions described in the immediately  preceding sentence,  the
         Company shall take such actions as the Initial Purchaser may reasonably
         request to  provide,  as soon as  practicable,  a CUSIP  number for the
         Registrable Notes registered under such  Registration  Statement and to
         cause such CUSIP numbers to be assigned to such  Registrable  Notes (or
         to the maximum 

                                       11

<PAGE>


         aggregate  principal  amount of such  Registrable  Notes to which  such
         number(s)  may  be  assigned).   Upon  compliance  with  the  foregoing
         requirements  of this  Section  4(l),  the  Company  shall  provide the
         Trustee with printed  certificates for the Registrable Notes, in a form
         eligible for deposit with DTC.

                  (m) The  Company  shall use its  reasonable  best  efforts  to
         comply with all applicable  rules and regulations of the Commission and
         shall  make  generally  available  to its  security  holders as soon as
         practicable  after the effective  date of the  applicable  Registration
         Statement an earnings  statement  satisfying  the provisions of Section
         11(a) of the Act.

                  (n) The Company  shall  cause the  Indenture  to be  qualified
         under the Trust Indenture Act of 1939 (the "Trust  Indenture Act") in a
         timely manner.

                  (o) The Company may require  each Holder of  securities  to be
         sold  pursuant to any Shelf  Registration  Statement  to furnish to the
         Company such information  regarding such Holder and the distribution of
         such  securities  by such  Holder as the  Company may from time to time
         reasonably  require for  inclusion in such  Registration  Statement and
         securities of a Holder which does not provide information necessary for
         inclusion in such Registration  Statement may be omitted from any Shelf
         Registration Statement.

                  (p) The Company  shall,  if  reasonably  requested,  and in no
         event more than  three  times,  promptly  incorporate  in a  Prospectus
         supplement  or  post-effective   amendment  to  a  Shelf   Registration
         Statement,  such information as the Managing Underwriters,  if any, and
         Majority  Holders  reasonably  agree with the  Company  and its counsel
         should be included  therein and shall make all required filings of such
         Prospectus  supplement or post-effective  amendment as soon as notified
         of the matters to be  incorporated  in such  Prospectus  supplement  or
         post-effective  amendment  provided  that  the  Company  shall  not  be
         required to take any action  under this Section 4(p) that is not in the
         reasonable  opinion  of counsel  for the  Company  in  compliance  with
         applicable law.

                  (q) In the  case  of any  Shelf  Registration  Statement,  the
         Company  shall  enter  into  such   customary   agreements   (including
         underwriting  agreements) and take all other appropriate and reasonably
         required  actions  in  connection  therewith  in order to  expedite  or
         facilitate the registration or the disposition of the Registrable Notes
         and in connection  therewith,  if an underwriting  agreement is entered
         into,  cause  the  same  to  contain  indemnification   provisions  and
         procedures no less favorable than those set 


                                       12

<PAGE>


         forth in Section 6 (or such other provisions and procedures  acceptable
         to the Company, the Holders of a majority in aggregate principal amount
         of  Registrable  Notes  and the  Managing  Underwriters,  if any)  with
         respect to all parties to be indemnified pursuant to Section 6.

                  (r) In the  case  of any  Shelf  Registration  Statement,  the
         Company  shall (i) make  reasonably  available  for  inspection  by the
         Holders of  securities to be  registered  thereunder,  subject to their
         acceptance  of the  provisions of this Section  4(r),  any  underwriter
         participating  in  any  distribution   pursuant  to  such  Registration
         Statement, and any Special Counsel,  accountant or other agent retained
         by the Holders or any such  underwriter,  all  relevant  financial  and
         other  records,  pertinent  corporate  documents and  properties of the
         Company  and its  subsidiaries  as  shall  reasonably  be  required  in
         connection with the discharge of their due diligence obligations;  (ii)
         cause the Company's officers,  directors and employees and any relevant
         trustee to supply all relevant information  reasonably requested by the
         Holders or any such underwriter,  Special Counsel,  accountant or agent
         in connection with any such Registration  Statement as is customary for
         similar due diligence  examinations;  provided,  however,  that, in the
         case of clause (i) and (ii) above,  any information  that is designated
         in writing by the Company,  in good faith,  as confidential at the time
         of  delivery  of such  information  shall be kept  confidential  by the
         Holders  and any such under  writer,  Special  Counsel,  accountant  or
         agent,  unless  such  disclosure  is  made in  connection  with a court
         proceeding or required by law, or such information becomes available to
         the public  generally or through a third party without an  accompanying
         obligation of confidentiality;  and provided further, however, that the
         foregoing inspection and information  gathering shall be coordinated on
         behalf of the Holders  and the other  parties  entitled  thereto by the
         Special Counsel and other parties;  (iii) make such representations and
         warranties to the Holders of securities  registered  thereunder and the
         underwriters,  if any, in form,  substance and scope as are customarily
         made by issuers to  underwriters  in secondary  offerings  and covering
         such  matters  as  are  customarily   covered  in  representations  and
         warranties  requested in secondary  offerings;  (iv) obtain opinions of
         counsel to the Company and updates  thereof  addressed  to each selling
         Holder and the  underwriters,  if any,  covering  such matters and with
         such  exceptions  as are  customarily  covered  or  taken  in  opinions
         requested in secondary offerings; (v) obtain "cold comfort" letters and
         updates thereof from the independent  certified  public  accountants of
         the Company (and, if necessary,  any other independent certified public
         accountants  of any  subsidiary 


                                       13

<PAGE>


         of the  Company or of any  business  acquired  by the Company for which
         financial  statements  and  financial  data are, or are required to be,
         included in the  Registration  Statement),  addressed  to each  selling
         Holder of securities  registered  thereunder if such Holders shall have
         provided to such accountants  customary  engagement letters relating to
         the  receipt  of "cold  comfort"  letters by  selling  Holders  and the
         underwriters,  if any, in customary  form and  covering  matters of the
         type  customarily  covered in "cold comfort" letters in connection with
         secondary  offerings;  and (vi) deliver such documents and certificates
         as may be reasonably requested by the Majority Holders and the Managing
         Underwriters,  if any, or Special  Counsel  including those to evidence
         compliance with Section 4(k) and with conditions  customarily contained
         in  the  underwriting  agreement  entered  into  by  the  Company.  The
         foregoing  actions set forth in clauses  (iii) and (v) of this  Section
         4(r)  shall be  performed  at the  effectiveness  of such  Registration
         Statement and those set forth in clauses  (iii),  (iv), (v) and (vi) of
         this  Section  4(r)  shall  be  performed  at each  closing  under  any
         underwriting  or  similar  agreement  as  and to  the  extent  required
         thereunder.

                  (s) In the case of any Exchange Offer Registration  Statement,
         if  requested  by the Initial  Purchaser,  the  Company  shall (i) make
         reasonably  available for inspection by the Initial Purchaser,  subject
         to its  acceptance  of the  provisions  of this Section  4(s),  and any
         Special  Counsel,  accountant  or other  agent  retained by the Initial
         Purchaser,   all  relevant  financial  and  other  records,   pertinent
         corporate  documents and properties of the Company and its subsidiaries
         as shall  reasonably  be required in  connection  with the discharge of
         their due diligence  obligations;  (ii) cause the  Company's  officers,
         directors and employees and any relevant trustee to supply all relevant
         information  reasonably  requested by the Initial Purchaser or any such
         Special  Counsel,  accountant  or  agent  in  connection  with any such
         Registration  Statement  as is  customary  for  similar  due  diligence
         examinations;  provided,  however,  that, in the case of clause (i) and
         (ii)  above,  any  information  that is  designated  in  writing by the
         Company, in good faith, as confidential at the time of delivery of such
         information shall be kept confidential by the Initial Purchaser and any
         such Special  Counsel,  accountant or agent,  unless such disclosure is
         made in connection with a court  proceeding or required by law, or such
         information  becomes  available  to the public  generally  or through a
         third party without an accompanying obligation of confidentiality;  and
         provided   further,   however,   that  the  foregoing   inspection  and
         information  gathering  shall be  coordinated  on behalf of the Initial
         Purchaser and other parties entitled thereto by the Special Counsel and
         other parties;  (iii) make such 


                                       14

<PAGE>


         representations  and  warranties  to the  Initial  Purchaser,  in form,
         substance and scope as are customarily  made by issuers to underwriters
         in secondary  offerings  and covering  such matters as are  customarily
         covered  in  representations  and  warranties  requested  in  secondary
         offerings;  and (iv) deliver such documents and  certificates as may be
         reasonably requested by the Initial Purchaser or its counsel, including
         those to evidence  compliance  with  Section  4(k) and with  conditions
         customarily contained in underwriting agreements. The foregoing actions
         set forth in  clauses  (iii)  and (iv) of this  Section  4(s)  shall be
         performed, if requested by the Initial Purchaser, at the closing of the
         Registered  Exchange Offer and the effective date of any post-effective
         amendment to the Exchange Offer Registration Statement.

                  5. Registration  Expenses. The Company shall bear all expenses
incurred in connection with the performance of its obligations under Sections 2,
3 and 4 hereof  and,  in the event of any  Shelf  Registration  Statement,  will
reimburse the Holders for the reasonable fees and  disbursements  of the Special
Counsel  designated  in connection  therewith,  and, in the case of any Exchange
Offer  Registration  Statement,  will  reimburse  the Initial  Purchaser for the
reasonable  fees and  disbursements  of the Special Counsel acting in connection
therewith;  provided,  however,  that each  Holder  shall  pay all  underwriting
discounts and commissions  and transfer  taxes, if any,  relating to the sale or
disposition of such Holder's Notes pursuant to a Shelf Registration Statement.

                  6. Indemnification.

         (a)  Indemnification  of Initial  Purchaser,  Holders  and  Others.  In
connection with any Registration Statement,  the Company agrees to indemnify and
hold  harmless  the  Initial  Purchaser,   each  Holder,  each  underwriter  who
participates in an offering of the Registrable Notes, each Exchanging Dealer and
each person,  if any,  who  controls  any of such parties  within the meaning of
Section 15 of the Act or Section 20 of the Exchange Act as follows:

                  (i) against  any and all loss,  liability,  claim,  damage and
         expense whatsoever, as incurred, arising out of any untrue statement or
         alleged   untrue   statement  of  a  material  fact  contained  in  any
         Registration   Statement  or  any  amendment  thereof,   including  all
         documents  incorporated  therein  by  reference,   or  any  preliminary
         Prospectus or any Prospectus (or any amendment or supplement  thereto),
         or the  omission  or alleged  omission  therefrom  of a  material  fact
         necessary in order to make the statements  therein, in the


                                       15

<PAGE>

         light of the circumstances under which they were made, not misleading;

                  (ii) against any and all loss,  liability,  claim,  damage and
         expense whatsoever,  as incurred, to the extent of the aggregate amount
         paid  in  settlement  of  any  litigation,   or  any  investigation  or
         proceeding by any governmental agency or body, commenced or threatened,
         or of any claim  whatsoever  based upon any such  untrue  statement  or
         omission,  or any such alleged untrue  statement or omission;  provided
         that  (subject to Section 6(d) below) any such  settlement  is effected
         with the written consent of the Company; and

                  (iii)against  any  and all  expense  whatsoever,  as  incurred
         (including the fees and disbursements of counsel chosen by such Holder,
         such  Exchanging  Dealer,  or any  underwriter  (except  to the  extent
         otherwise  expressly  provided  in Section  6(c)  hereof)),  reasonably
         incurred  in   investigating,   preparing  or  defending   against  any
         litigation,  or any  investigation  or proceeding  by any  governmental
         agency or body, commenced or threatened,  or any claim whatsoever based
         upon any such untrue statement or omission,  or any such alleged untrue
         statement or omission,  to the extent that any such expense is not paid
         under  (i) or  (ii)  above;  provided,  however,  that  this  indemnity
         agreement  shall  not apply to any loss,  liability,  claim,  damage or
         expense to the extent  arising out of any untrue  statement or omission
         or alleged  untrue  statement or omission  made in reliance upon and in
         conformity  with written  information  furnished to the Company by such
         Holder,  underwriter  or  Exchanging  Dealer  expressly  for use in any
         Registration  Statement  or  any  amendment  thereof,  any  preliminary
         Prospectus or any Prospectus (as amended or supplemented if the Company
         shall have furnished any amendments or supplements thereto);

and provided,  further,  that the foregoing  indemnity agreement with respect to
any  preliminary  Prospectus  shall not  inure to the  benefit  of such  Holder,
underwriter or Exchanging  Dealer, or the benefit of any person  controlling any
of such parties, if a copy of the Prospectus  (excluding documents  incorporated
or deemed to be incorporated  by reference  therein) was not sent or given by or
on behalf of any of such  parties  to such  person  asserting  any such  losses,
claims,  damages or liabilities at or prior to the written  confirmation  of the
sale of such Notes to such person, if required by law so to have been delivered,
and if the  Prospectus  (as then amended or  supplemented)  would have cured the
defect giving rise to such loss, claim, damage or expense.

         (b)  Indemnification  of Company,  Trustees and  Officers.  The Initial
Purchaser and each Holder,  underwriter or Exchanging

                                       16

<PAGE>

Dealer  severally  agrees  to  indemnify  and hold  harmless  the  Company,  its
trustees,  its officers and each person, if any, who controls the Company within
the meaning of Section 15 of the Act or Section 20 of the  Exchange  Act against
any  and all  loss,  liability,  claim,  damage  and  expense  described  in the
indemnity  contained in subsection  (a) of this Section,  as incurred,  but only
with respect to untrue statements or omissions,  or alleged untrue statements or
omissions,  made in any  Registration  Statement or any amendment  thereof,  any
preliminary  Prospectus or any  Prospectus  (as amended or  supplemented  if the
Company shall have furnished any amendments or supplements  thereto) in reliance
upon and in conformity with written information furnished to the Company by such
Holder,  underwriter or Exchanging Dealer expressly for use in such Registration
Statement,  preliminary Prospectus or Prospectus; provided, however, that in the
case of a Shelf Registration  Statement,  no such Holder shall be liable for any
claims hereunder in excess of the amount of net proceeds received by such Holder
from  the  sale  of  Registrable  Notes  pursuant  to  such  Shelf  Registration
Statement.

         (c) Actions against Parties; Notification. Each indemnified party shall
give notice as promptly as reasonably  practicable to each indemnifying party of
any action  commenced  against it in  respect of which  indemnity  may be sought
hereunder, but failure to so notify an indemnifying party shall not relieve such
indemnifying  party  from  any  liability  hereunder  to  the  extent  it is not
materially  prejudiced as a result thereof and in any event shall not relieve it
from any liability which it may have otherwise than on account of this indemnity
agreement.  In the case of parties  indemnified  pursuant to Section 6(a) above,
counsel to the  indemnified  parties shall be selected by such parties,  and, in
the case of parties indemnified  pursuant to Section 6(b) above,  counsel to the
indemnified  parties shall be selected by the Company. An indemnifying party may
participate  at its own  expense in the  defense of any such  action;  provided,
however,  that  counsel to the  indemnifying  party shall not  (except  with the
consent of the indemnified  party) also be counsel to the indemnified  party. In
no event shall the indemnifying  parties be liable for fees and expenses of more
than one counsel  (in  addition to any local  counsel)  separate  from their own
counsel  for all  indemnified  parties  in  connection  with any one  action  or
separate but similar or related actions in the same jurisdiction  arising out of
the same general  allegations or  circumstances.  No  indemnifying  party shall,
without  the  prior  written  consent  of the  indemnified  parties,  settle  or
compromise  or  consent  to  the  entry  of any  judgment  with  respect  to any
litigation,  or any  investigation or proceeding by any  governmental  agency or
body,  commenced  or  threatened,  or any claim  whatsoever  in respect of which
indemnification  or contribution could be sought under this Section 6 or Section
7 hereof (whether or not the indemnified parties are actual or potential parties
thereto),  unless  such

                                       17

<PAGE>

settlement,  compromise or consent (i) includes an unconditional release of each
indemnified   party  from  all  liability   arising  out  of  such   litigation,
investigation,  proceeding  or claim and (ii) does not include a statement as to
or an admission of fault, culpability or a failure to act by
or on behalf of any indemnified party.

         (d) Settlement without Consent if Failure to Reimburse.  If at any time
an indemnified party shall have requested an indemnifying party to reimburse the
indemnified  party for fees and  expenses of counsel,  such  indemnifying  party
agrees that it shall be liable for any settlement of the nature  contemplated by
Section 6(a)(ii)  effected without its written consent if (i) such settlement is
entered into more than 45 days after receipt by such  indemnifying  party of the
aforesaid  request,  (ii) such indemnifying  party shall have received notice of
the terms of such  settlement  at least 30 days prior to such  settlement  being
entered into and (iii) such  indemnifying  party shall not have  reimbursed such
indemnified  party in  accordance  with such  request  prior to the date of such
settlement.

         7.  Contribution.  If the  indemnification  provided  for in  Section 6
hereof is for any reason  unavailable  to or  insufficient  to hold  harmless an
indemnified  party in respect of any  losses,  liabilities,  claims,  damages or
expenses referred to therein,  then each indemnifying  party shall contribute to
the aggregate amount of such losses,  liabilities,  claims, damages and expenses
incurred by such  indemnified  party,  as  incurred,  in such  proportion  as is
appropriate  to reflect the relative fault of the Company on the one hand and of
the Initial Purchaser,  each Holder, each underwriter and each Exchanging Dealer
on the other hand in connection  with the statements or omissions which resulted
in such losses,  liabilities,  claims, damages or expenses, as well as any other
relevant equitable considerations.

         The  relative  fault of the  Company  on the one  hand and the  Initial
Purchaser, each Holder, each underwriter and each Exchanging Dealer on the other
hand shall be determined  by reference to, among other things,  whether any such
untrue or alleged  untrue  statement  of a material  fact or omission or alleged
omission to state a material fact relates to information supplied by the Company
or by the Initial Purchaser,  each Holder,  each underwriter and each Exchanging
Dealer and the parties'  relative intent,  knowledge,  access to information and
opportunity to correct or prevent such statement or omission.

         The Company and the Initial  Purchaser  agree that it would not be just
and equitable if contribution  pursuant to this Section 7 were determined by pro
rata allocation or by any other method of allocation which does not take account
of the  equitable  considerations  referred  to  above  in this  Section  7. 


                                                        18

<PAGE>


The  aggregate  amount of losses,  liabilities,  claims,  damages  and  expenses
incurred by an  indemnified  party and referred to above in this Section 7 shall
be deemed to include  any legal or other  expenses  reasonably  incurred by such
indemnified  party  in   investigating,   preparing  or  defending  against  any
litigation,  or any  investigation or proceeding by any  governmental  agency or
body,  commenced  or  threatened,  or any claim  whatsoever  based upon any such
untrue or alleged untrue statement or omission or alleged omission.

         Notwithstanding the provisions of this Section 7, the Initial Purchaser
shall not be required to contribute  any amount in excess of the amount by which
the total  price at which the Notes  purchased  by it were  resold to the public
exceeds the amount of any damages which the Initial Purchaser has otherwise been
required to pay by reason of such untrue or alleged untrue statement or omission
or alleged omission.

         No person guilty of fraudulent misrepresentation (within the meaning of
Section 11(f) of the Act) shall be entitled to contribution  from any person who
was not guilty of such fraudulent misrepresentation.

         For purposes of this  Section 7, each person,  if any, who controls the
Initial  Purchaser,  each Holder,  each  underwriter or each  Exchanging  Dealer
within the  meaning of Section 15 of the Act or Section 20 of the  Exchange  Act
shall have the same  rights to  contribution  as any of such  parties,  and each
trustee of the Company, each officer of the Company and each person, if any, who
controls  the Company  within the meaning of Section 15 of the Act or Section 20
of the Exchange Act shall have the same rights to contribution as the Company.

                  8.  Liquidated  Damages  Under  Certain   Circumstances.   (a)
Liquidated  damages  ("Liquidated  Damages")  shall become payable in respect of
Registrable  Notes as follows if any of the  following  events  occur (each such
event in clauses (i) through (vi) below, a "Registration Default"):

                     (i) if the  Exchange  Offer  Registration  Statement is not
         filed with the  Commission  on or prior to the 105th day  following the
         Closing Time;

                    (ii) if the  Exchange  Offer  Registration  Statement is not
         declared  effective on or prior to the 150th day  following the Closing
         Time;

                   (iii) if the  Registered  Exchange  Offer is not  consummated
         within the sooner to occur of 45 days after the  effective  date of the
         Exchange  Offer  Registration  Statement  or 180 days after the Closing
         Time;

                                        19
<PAGE>

                   (iv) if the Shelf  Registration  Statement is not filed with
         the Commission on or prior to the 60th day after such filing obligation
         arises;

                     (v) if the Shelf  Registration  Statement  is not  declared
         effective on or prior to the 45th day after it is filed; or

                    (vi) if after the Exchange Offer  Registration  Statement or
         Shelf  Registration  is declared  effective,  (A) such  Exchange  Offer
         Registration  Statement or Shelf  Registration  Statement  ceases to be
         effective prior to the end of the Exchange Offer Registration Period or
         Shelf Registration Period (except as permitted in paragraph (b) of this
         Section 8); (B) such  Exchange  Offer  Registration  Statement or Shelf
         Registration  Statement or the related  Prospectus ceases to be useable
         in  connection  with  resales  of  Registrable  Notes  covered  by such
         Exchange Offer Registration  Statement or Shelf Registration  Statement
         prior to the end of the  Exchange  Offer  Registration  Period or Shelf
         Registration  Period  (except as  permitted  in  paragraph  (b) of this
         Section 8) because (1) the Company  determines that any event occurs as
         a result of which the related  Prospectus forming part of such Exchange
         Offer  Registration  Statement or Shelf  Registration  Statement  would
         include any untrue  statement  of a material  fact or omit to state any
         material fact necessary to make the statements  therein in the light of
         the  circumstances  under which they were made not misleading,  (2) the
         Company  determines  that it shall be necessary to amend such  Exchange
         Offer  Registration  Statement  or  Shelf  Registration  Statement,  or
         supplement  the  related  Prospectus,  to  comply  with  the Act or the
         Exchange  Act or the rules  thereunder,  or (3) the Company  determines
         that it is  advisable to suspend use of the  Prospectus  for a discrete
         period  of time  due to  pending  material  corporate  developments  or
         similar  material events that have not yet been publicly  disclosed and
         as to which the Company believes public  disclosure will be prejudicial
         to the Company.

                  Liquidated  Damages shall accrue on the Registrable Notes over
and above the  interest  rate set  forth in the title to the  Registrable  Notes
following  the  occurrence  of a  Registration  Default set forth in clauses (i)
through  (vi)  above  from  and  including  the  next day  following  each  such
Registration Default, in each case at a rate equal to 0.50% per annum; provided,
further,  however,  that (1) upon the filing of the Exchange Offer  Registration
Statement or a Shelf  Registration  Statement (in the case of clause (i) or (iv)
above), (2) upon the effectiveness of the Exchange Offer Registration  Statement
or a Shelf Registration Statement (in the case of clause (ii) or (v) above), (3)
upon the 

                                       20

<PAGE>

exchange of Notes pursuant to the Exchange Offer Registration  Statement (in the
case  of  clause  (iii)  above),  or (4) at  such  time  as the  Exchange  Offer
Registration  Statement or a Shelf  Registration  Statement  which had ceased to
remain  effective or usable again  becomes  effective and usable (in the case of
clause (vi) above),  Liquidated  Damages on the unpaid  principal  amount of the
Notes, as a result of such Registration Default, shall cease to accrue.

                  (b) A  Registration  Default  referred to in Section  8(a)(vi)
shall be deemed  not to have  occurred  and be  continuing  in  relation  to the
Exchange Offer  Registration  Statement or Shelf  Registration  Statement or the
related  Prospectus if (i) such  Registration  Default has occurred  solely as a
result of (x) the filing of a  post-effective  amendment to such Exchange  Offer
Registration  Statement or Shelf  Registration  Statement to incorporate  annual
audited   financial   information   with  respect  to  the  Company  where  such
post-effective amendment is not yet effective and needs to be declared effective
to  permit  Holders  to use the  related  Prospectus  or (y) in the  case of the
Exchange Offer Registration  Statement, to the extent offers or sales thereunder
are not permitted to be made in accordance with Instruction 1 to Form 8-K if the
Company has timely  reported a business  acquisition  pursuant to Item 2 of Form
8-K, but financial  statements  required to be filed  pursuant to Item 7 of Form
8-K with respect to such business acquisition have not been filed by the Company
and are not at the time  required to be filed in  accordance  with such Item and
such Instruction, or (z) the occurrence of other material events or developments
with respect to the Company  that would need to be  described  in such  Exchange
Offer  Registration  Statement  or Shelf  Registration  Statement or the related
Prospectus  and  (ii) in the case of  clause  (z),  the  Company  is  proceeding
promptly  and  in  good  faith  to  amend  or  supplement  such  Exchange  Offer
Registration Statement or Shelf Registration Statement and related Prospectus to
describe such events.

                  (c) Any  amounts of  Liquidated  Damages  due  pursuant to the
foregoing  paragraphs will be payable in cash on June 18 and December 18 of each
year  to  the  holders  of  record  on  the  preceding  May  3 and  November  3,
respectively.

                  9.       Miscellaneous.

                  (a) No Inconsistent Agreements. The Company has not, as of the
date  hereof,  entered  into,  nor shall it, on or after the date here of, enter
into,  any  agreement  with respect to the Notes that is  inconsistent  with the
rights granted to the Holders herein or otherwise  conflicts with the provisions
hereof.


                                       21

<PAGE>


                  (b) Amendments and Waivers.  The provisions of this Agreement,
including  the  provisions  of this  sentence,  may not be  amended,  qualified,
modified  or  supplemented,  and  waivers or  consents  to  departures  from the
provisions hereof may not be given,  unless the Company has obtained the written
consent of the Holders of at least a majority of the then outstanding  aggregate
principal amount of Registrable Notes; provided,  however, that, with respect to
any matter  that  affects  the rights of the Initial  Purchaser  hereunder,  the
Company   shall   obtain  the  written   consent  of  the   Initial   Purchaser.
Notwithstanding  the  foregoing  (except  the  foregoing  proviso),  a waiver or
consent to departure  from the  provisions  hereof with respect to a matter that
relates  exclusively to the rights of Holders whose  Registrable Notes are being
sold  pursuant  to a  Registration  Statement  and  that  does not  directly  or
indirectly  affect the rights of other  Holders may be given by the Holders of a
majority of the Registrable Notes,  determined on the basis of Registrable Notes
being sold rather than registered under such Registration Statement.

                  (c) Notices. All notices and other communications provided for
or permitted  hereunder shall be made in writing by  hand-delivery,  first-class
mail, telex, telecopier, or air courier guaranteeing overnight delivery:

                           (1) if to a Holder, at the most current address given
                  by  such  Holder  to  the  Company  in  accordance   with  the
                  provisions of this Section 8(c),  which address  initially is,
                  with  respect  to each  Holder,  the  address  of such  Holder
                  maintained by the Trustee under the Indenture,  with a copy in
                  like manner to Merrill Lynch;

                           (2)   if to the Initial Purchaser, initially at the
                  address set forth in the Purchase Agreement; and

                           (3) if to the  Company,  initially at the address set
                  forth in the Purchase Agreement.

                  All such  notices and  communications  shall be deemed to have
been duly given when received.

                  The  Initial  Purchaser  or the Company by notice to the other
may  designate  additional  or different  addresses  for  subsequent  notices or
communications.

                  (d) Successors and Assigns.  This Agreement shall inure to the
benefit  of and be  binding  upon  the  successors  and  assigns  of each of the
parties, including, without the need for an express assignment or any consent by
the Company thereto, subsequent Holders of Registrable Notes. The Company hereby
agrees to extend the  benefits of this  Agreement  to any Holder of

                                       22

<PAGE>

Registrable  Notes  and any such  Holder  may  enforce  the  provisions  of this
Agreement as if an original party hereto.

                  (e) Counterparts. This Agreement may be executed in any number
of  counterparts  and by the parties  hereto in separate  counterparts,  each of
which when so executed  shall be deemed to be an original and all of which taken
together shall constitute one and the same agreement.

                  (f)  Headings.   The  headings  in  this   Agreement  are  for
convenience  of  reference  only and  shall not limit or  otherwise  affect  the
meaning hereof.

                  (g)  Governing  Law. THIS  AGREEMENT  SHALL BE GOVERNED BY AND
CONSTRUED  IN  ACCORDANCE  WITH  THE  INTERNAL  LAWS OF THE  STATE  OF NEW  YORK
APPLICABLE TO AGREEMENTS MADE AND TO BE PERFORMED IN SAID STATE.

                  (h)  Severability.  In the  event  that any one of more of the
provisions contained herein, or the application thereof in any circumstances, is
held  invalid,  illegal or  unenforceable  in any respect  for any  reason,  the
validity,  legality  and  enforceability  of any such  provision  in every other
respect and of the remaining  provisions hereof shall not be in any way impaired
or affected thereby,  it being intended that all of the rights and privileges of
the parties shall be enforceable to the fullest extent permitted by law.

                  (i) Notes Held by the  Company,  etc.  Whenever the consent or
approval of Holders of a specified percentage of principal amount of Registrable
Notes is required hereunder, Notes or Exchange Notes, as applicable, held by the
Company  or their  respective  Affiliates  (other  than  subsequent  Holders  of
Registrable Notes if such subsequent  Holders are deemed to be Affiliates solely
by  reason of their  holdings  of such  Notes or  Exchange  Notes)  shall not be
counted in determining whether such consent or approval was given by the Holders
of such required percentage.

         THE  DECLARATION OF TRUST  ESTABLISHING  THE COMPANY,  DATED OCTOBER 9,
1986, A COPY OF WHICH, TOGETHER WITH ALL AMENDMENTS THERETO (THE "DECLARATION"),
IS DULY ON FILE  IN THE  OFFICE  OF THE  STATE  DEPARTMENT  OF  ASSESSMENTS  AND
TAXATION  OF  MARYLAND  AND  PROVIDES  THAT  THE  NAME  "HEALTH  AND  RETIREMENT
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.

                                       23
<PAGE>


                  Please  confirm that the  foregoing  correctly  sets forth the
agreement among the Company and you.

                                        Very truly yours,

                                        HEALTH AND RETIREMENT PROPERTIES TRUST


                                        By: /s/ David J. Hegarty
                                            Name: David J. Hegarty  
                                            Title: President


Accepted, December 18, 1997

MERRILL LYNCH & CO.
MERRILL LYNCH, PIERCE, FENNER & SMITH
INCORPORATED


By: /s/ Tjarda van S. Claggett
   Name: Tjarda van S. Claggett
   Title: Director



                                24

<PAGE>



                                                               ANNEX A










                                     Annex A

                  Each  broker-dealer  that receives  Exchange Notes for its own
account  pursuant to the Exchange Offer must  acknowledge that it will deliver a
prospectus in connection with any resale of such Exchange  Notes.  The Letter of
Transmittal  states that by so acknowledging  and by delivering a prospectus,  a
broker-dealer will not be deemed to admit that it is an "underwriter" within the
meaning  of the  Securities  Act.  This  Prospectus,  as it may  be  amended  or
supplemented  from time to time,  may be used by a  broker-dealer  in connection
with resales of Exchange  Notes  received in exchange for Notes acquired by such
broker-dealer  as  a  result  of  market-making   activities  or  other  trading
activities.  The  Company has agreed for a period of at least 120 days after the
consummation  of the  Exchange  Offer to make this  Prospectus  available to any
broker-dealer  for  use in  connection  with  any  such  resale.  See  "Plan  of
Distribution."



<PAGE>



                                                                         ANNEX B










                                     Annex B

                  Each  broker-dealer  that receives  Exchange Notes for its own
account  in  exchange  for  Notes,  where  such  Notes  were  acquired  by  such
broker-dealer  as  a  result  of  market-making   activities  or  other  trading
activities,  must  acknowledge  that it will deliver a prospectus  in connection
with any resale of such Exchange Notes. See "Plan of Distribution."


                                                       
<PAGE>



                                                                         ANNEX C










                              Plan of Distribution

                  Each  broker-dealer  that receives  Exchange Notes for its own
account  pursuant to the Exchange Offer must  acknowledge that it will deliver a
prospectus  in  connection  with  any  resale  of  such  Exchange  Notes.   This
Prospectus,  as it may be amended or supplemented from time to time, may be used
by a  broker-dealer  in connection  with resales of Exchange  Notes  received in
exchange  for Notes where such Notes were  acquired by such  broker-dealer  as a
result of market-making activities or other trading activities.  The Company has
agreed for a period of at least 120 days after the  consummation of the Exchange
Offer to make this  Prospectus,  as amended or  supplemented,  available  to any
broker-dealer for use in connection with any such resale. In addition, until
           , 199 , all dealers effecting  transactions in the Exchange Notes may
be required to deliver a prospectus.

                  The Company  will not receive  any  proceeds  from any sale of
Exchange Notes by broker-dealers.  Exchange Notes received by broker-dealers for
their own account  pursuant to the Exchange  Offer may be sold from time to time
in one or  more  transactions  in the  over-the-counter  market,  in  negotiated
transactions,  through  the  writing  of  options  on the  Exchange  Notes  or a
combination of such methods of resale,  at market prices  prevailing at the time
of resale,  at prices related to such prevailing  market prices or at negotiated
prices.  Any such  resale may be made  directly to  purchasers  or to or through
brokers or dealers who may receive  compensation  in the form of  commissions or
concessions  from any  such  broker-dealer  and/or  the  purchasers  of any such
Exchange Notes. Any broker-dealer that resells Exchange Notes that were received
by it for its own  account  pursuant  to the  Exchange  Offer and any  broker or
dealer that  participates in a distribution of such Exchange Notes may be deemed
to be an "underwriter"  within the meaning of the Act and any profit of any such
resale of Exchange Notes and any commissions or concessions received by any such
persons may be deemed to be underwriting  compensation under the Securities Act.
The Letter of Transmittal  states that by acknowledging that it will deliver and
by delivering a prospectus,  a broker-dealer will not be deemed to admit that it
is an "underwriter" within the meaning of the Securities Act.

                  For a period of at least 120 days  after the  consummation  of
the Exchange  Offer,  the Company will promptly send  additional  copies of this
Prospectus   and  any  amendment  or  supplement  to  this   Prospectus  to  any
broker-dealer  that requests such  documents in the Letter of  Transmittal.  The
Company has agreed to pay all expenses incident to the Exchange Offer 



<PAGE>

(including  the  expenses of any  Special  Counsel for the holders of the Notes)
other than  commissions  or  concessions  of any  brokers  or  dealers  and will
indemnify  the  holders  of  the  Notes  participating  in  the  Exchange  Offer
(including  any   broker-dealers)   against   certain   liabilities,   including
liabilities under the Securities Act.




                                        2

<PAGE>



                                                                         ANNEX D










                                     Rider A

                  CHECK HERE IF YOU ARE A BROKER-DEALER AND WISH TO RECEIVE 10
         ADDITIONAL COPIES OF THE PROSPECTUS AND 10 COPIES OF ANY
         AMENDMENTS OR SUPPLEMENTS THERETO.

         Name:__________________________________________

         Address: ______________________________________

                  ______________________________________

                      


                                     Rider B

                  If the  undersigned is not a  broker-dealer,  the  undersigned
represents  that it is not  engaged  in,  and does not  intend to  engage  in, a
distribution of Exchange Notes. If the undersigned is a broker-dealer  that will
receive  Exchange Notes for its own account in exchange for Notes, it represents
that the Notes to be  exchanged  for  Exchange  Notes were  acquired  by it as a
result of market-making  activities or other trading activities and acknowledges
that it will deliver a prospectus in connection with any resale of such Exchange
Notes;  however,  by so  acknowledging  and  by  delivering  a  prospectus,  the
undersigned will not be deemed to admit that it is an  "underwriter"  within the
meaning of the Act.




<PAGE>


                                                                         ANNEX E










                   FORM OF LETTER TO BE PROVIDED BY ISSUER TO
                          THE DEPOSITORY TRUST COMPANY


                     Health and Retirement Properties Trust
                                400 Centre Street
                                Newton, MA 02158


The Depository Trust Company
7 Hanover Square, 23rd Floor
New York, NY 10004

         Re:      $150,000,000 6 3/4% Senior Notes due December 18, 2002
                  of Health and Retirement Properties Trust



Ladies and Gentlemen:

                  Please be advised that the Securities and Exchange  Commission
has declared effective a Registration Statement on Form S-3 under the Securities
Act of 1933, as amended,  with regard to all of the securities referenced above.
Accordingly,  there is no longer any  restriction as to whom such securities may
be sold and any restrictions on the CUSIP designations are no longer appropriate
and may be removed.  I understand  that upon  receipt of this  letter,  DTC will
remove any stop or restriction on its system with respect to these issues.

                  As  always,  please  do not  hesitate  to call if we can be of
further assistance.


                                     HEALTH AND RETIREMENT PROPERTIES TRUST

                                     by:

                                              Authorized Officer




  



                                                                   Exhibit 99.1

               [Health and Retirement Properties Trust Letterhead]
 
                                              December 18, 1997


FOR IMMEDIATE RELEASE                         For more information
                                              Contact:
                                              David J. Hegarty, President or
                                              Ajay Saini, Treasurer
                                              (617) 332-3990

                Health and Retirement Properties Trust Announces
              Private Placement of $150 Million 6 3/4% Senior Notes
 ------------------------------------------------------------------------------


         Newton,  MA: Health and Retirement  Properties  Trust  (NYSE:HRP) today
announced  that is has  completed a private  placement of $150 million of 6 3/4%
Senior Notes due in December  2002.  The net proceeds of the placement were used
to reduce outstanding borrowings under HRP's revolving line of credit which were
at a floating interest rate.

         These Senior Notes have not been registered under the Securities Act of
1933,  as amended  and may not be offered  or sold in the United  States  absent
registration or an applicable exemption from registration requirements.

         Health and  Retirement  Properties  Trust is a real  estate  investment
trust headquartered in Newton, Massachusetts which primarily owns nursing homes,
retirement  living  properties,   medical  office  buildings  and  clinics.  HRP
currently  has  approximately  $2.1 billion of real estate  investments  located
throughout   the  United   States  and  an  equity  market   capitalization   of
approximately $2 billion.
                                           
                                     (end)


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