PROLOGIS TRUST
S-4/A, 1999-02-04
REAL ESTATE
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<PAGE>
 
    
 As filed with the Securities and Exchange Commission on February 4, 1999     
                                                    
                                                 Registration No. 333-69001     
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
 
                                --------------
                                 
                              AMENDMENT NO. 1     
                                       
                                    to     
                                    FORM S-4
                             REGISTRATION STATEMENT
                                     Under
                           The Securities Act of 1933
 
                                --------------
 
                                 ProLogis Trust
             (Exact name of registrant as specified in its charter)
 
                                --------------
 
         Maryland                    6719                    74-2604728
     (State or other          (Primary Standard           (I.R.S. Employer
     jurisdiction of      Industrial Classification     Identification No.)
     incorporation or            Code Number)
      organization)
 
                             14100 East 35th Place
                             Aurora, Colorado 80011
                                 (303) 375-9292
  (Address, including zip code, and telephone number, including area code, of
                   registrant's principal executive offices)
 
                                --------------
 
                          Jeffrey A. Klopf, Secretary
                                 ProLogis Trust
                               125 Lincoln Avenue
                           Santa Fe, New Mexico 87501
                                 (505) 982-9292
 (Name, address, including zip code, and telephone number, including area code,
                             of agent for service):
 
                                   Copies to:
            Michael T. Blair                       Michael D. Wortley
          Mayer, Brown & Platt                   Vinson & Elkins L.L.P.
        190 South LaSalle Street                    2001 Ross Avenue
        Chicago, Illinois 60603                   Dallas, Texas 75201
             (312) 782-0600                          (214) 220-7700
 
                                --------------
 
  Approximate date of commencement of proposed sale to the public: As soon as
practicable after this Registration Statement becomes effective.
 
  If the securities being registered on this Form are being offered in
connection with the formation of a holding company and there is compliance with
General Instruction G, check the following box. [_]
 
  If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, check the following box and
list the Securities Act registration statement number of the earlier effective
registration statement for the same offering. [_]
 
  If this Form is a post-effective amendment filed pursuant to Rule 462(d)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. [_]
 
                        CALCULATION OF REGISTRATION FEE
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<TABLE>   
<CAPTION>
                                                                   Proposed
                                                    Proposed        Maximum
                                      Amount        Maximum        Aggregate     Amount of
     Title of Each Class of           to be      Offering Price     Offering   Registration
   Securities to be Registered     Registered(1)  Per Share(2)      price(2)       fee(2)
- -------------------------------------------------------------------------------------------
<S>                                <C>           <C>            <C>             <C>
Common Shares of Beneficial
 Interest,
 $0.01 par value per share.......   39,841,746      $21.437     $854,093,508.09 $237,437.99
- -------------------------------------------------------------------------------------------
Series E Cumulative Redeemable
 Preferred Shares of Beneficial
 Interest, $0.01 par value per
 share...........................    2,000,000      $23.219     $ 46,437,500.00  $12,909.63
- -------------------------------------------------------------------------------------------
Preferred Shares Purchase
 Rights..........................   39,841,746          N/A                 N/A         N/A
- -------------------------------------------------------------------------------------------
Total............................          N/A          N/A     $900,531,008.09 $250,377.62
</TABLE>    
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
   
(1) Includes 677,595 common shares issuable upon exercise of outstanding
    warrants to be assumed by the registrant, 310,200 shares to be issued
    pursuant to conditional stock awards in the transaction, 1,785,713 shares
    issuable in respect of outstanding convertible securities to be converted
    prior to closing of the transaction and 2,226,808 shares issuable upon
    exercise of outstanding options to be assumed in the transaction.     
   
(2) Estimated solely for the purpose of determining the registration fee. In
    accordance with Rule 457(f)(1) and (3), the above calculation is based on
    the market value of the securities to be received by the registrant or
    canceled in the transaction as established by the price of securities of
    the same or corresponding class based on the average high and low prices
    reported in the New York Stock Exchange Composite Tape on December 14, 1998
    (with respect to 37,614,938 common shares and all preferred shares) and
    January 29, 1999 (with respect to 2,226,808 common shares), reduced by the
    amount of cash to be paid by the registrant based on the closing price of
    the registrant's common shares on December 14, 1998 (with respect to
    37,614,938 common shares and all preferred shares) and January 29, 1999
    (with respect to 2,226,808 common shares). $237,080.55 having previously
    been paid.     
 
                                --------------
 
  The Registrant hereby amends this Registration Statement on such date or
dates as may be necessary to delay its effective date until the Registrant
shall file a further amendment which specifically states that this Registration
Statement shall thereafter become effective in accordance with Section 8(a) of
the Securities Act of 1933 or until the Registration Statement shall become
effective on such date as the Commission, acting pursuant to said Section 8(a),
may determine.
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
 
                               Proposed Merger of
 
                        MERIDIAN INDUSTRIAL TRUST, INC.
 
                                 with and into
 
                                 PROLOGIS TRUST
 
                     TO THE SHAREHOLDERS OF PROLOGIS TRUST
 
                   NOTICE OF SPECIAL MEETING OF SHAREHOLDERS
 
                                   To Be Held
                             
                                 , March   , 1999     
 
                                         a.m.
 
                             14100 East 35th Place
 
                             Aurora, Colorado 80011
 
  Your board of trustees asks you to attend this meeting to consider and vote
on the following:
     
    1. Proposed Merger. A proposal to merge Meridian Industrial Trust, Inc.,
  a Maryland corporation ("Meridian"), with and into ProLogis Trust, a
  Maryland real estate investment trust ("ProLogis"). In the merger, ProLogis
  will issue to Meridian stockholders, for each share of Meridian common
  stock, 1.10 common shares of ProLogis and up to $2.00 in cash if and to the
  extent that an average price of a ProLogis common share, multiplied by
  1.10, is less than $25.00. ProLogis will issue to holders of Meridian
  Series D cumulative redeemable preferred stock one corresponding preferred
  share of ProLogis for each share of Meridian Series D cumulative redeemable
  preferred stock. The Agreement and Plan of Merger providing for the merger,
  which describes the terms of the merger in great detail, is attached to the
  accompanying joint proxy statement and prospectus as Annex A; and     
 
    2. Other Business. Any other matter that properly comes before the
  meeting or any adjournment or postponement.
 
  Approval of the merger and the transactions contemplated thereby requires the
affirmative vote of at least two-thirds of the outstanding ProLogis common
shares entitled to vote thereon.
 
  Only holders of common shares at the close of business on            , 1999
are entitled to notice of and to vote at the special meeting or any
adjournments or postponements.
 
                                          By the Order of the Board of
                                           Trustees,
 
                                          Jeffrey A. Klopf
                                          Secretary
 
          , 1999
Aurora, Colorado
 
  Your board of trustees unanimously recommends that you vote "FOR" the merger.
 
  We invite you to attend the special meeting because it is important that your
shares be represented at the meeting. Please sign, date and return the enclosed
proxy card in the accompanying postage-paid envelope. If you attend the
meeting, you may vote in person, which will revoke a signed proxy if you have
already sent one in. You may also revoke your proxy at any time before the
meeting either in writing or by notifying ProLogis.
<PAGE>
 
                        MERIDIAN INDUSTRIAL TRUST, INC.
                         455 Market Street, 17th Floor
                        San Francisco, California 94105
 
                               ----------------
 
                   NOTICE OF SPECIAL MEETING OF STOCKHOLDERS
 
                               ----------------
   
  NOTICE IS HEREBY GIVEN that a Special Meeting of Stockholders of Meridian
Industrial Trust, Inc., a Maryland corporation ("Meridian"), will be held at
                     , San Francisco, California on March   , 1999 at
a.m., local time, for the following purposes:     
     
    1. To consider and vote upon a proposal to approve the merger of Meridian
  with and into ProLogis Trust, a Maryland real estate investment trust
  ("ProLogis"), the Agreement and Plan of Merger by and between Meridian and
  ProLogis dated as of November 16, 1998, as amended, and the other
  transactions contemplated therein, a copy of which is attached as Annex A
  to the accompanying joint proxy statement and prospectus; and     
 
    2. To transact such other business as may properly come before the
  meeting or any postponement or adjournment thereof.
 
  Approval of the merger and the transactions contemplated thereby requires the
affirmative vote of holders of a majority of the outstanding shares of
Meridian's common stock entitled to vote thereon.
 
  Stockholders of Meridian are not entitled to appraisal rights in connection
with the merger.
 
  The enclosed proxy card will enable you to vote your shares of common stock
on the matters to be considered at the special meeting. All you need to do is
mark the proxy card to indicate your vote, date and sign the proxy card, and
then return it promptly in the self-addressed stamped envelope provided. The
giving of the proxy will not affect your right to attend the meeting, nor, if
you choose to revoke the proxy, your right to vote in person.
 
  The board of directors has fixed the close of business on                ,
1999 as the record date for determination of stockholders entitled to notice of
and to vote at the special meeting.
 
                                          By the Order of the Board of
                                           Directors,
 
                                          Robert A. Dobbin
                                          Secretary
 
         , 1999
San Francisco, California
<PAGE>
 
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+The information in this Joint Proxy Statement and Prospectus is not complete  +
+and may be changed. We may not sell these securities until the registration   +
+statement filed with the Securities and Exchange Commission is effective.     +
+This Joint Proxy Statement and Prospectus is not an offer to sell these       +
+securities and is not soliciting an offer to buy these securities in any      +
+state where the offer or sale is not permitted.                               +
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 
 
                 MERGER PROPOSED -- YOUR VOTE IS VERY IMPORTANT
  The board of trustees of ProLogis Trust and the board of directors of
Meridian Industrial Trust, Inc. have approved a merger of Meridian into
ProLogis and recommend that their shareholders vote in favor of the merger.
 
  Each share of Meridian common stock issued and outstanding immediately prior
to the effective time of the merger will be converted into the right to
receive:
 
(A) 1.10 common shares of beneficial interest of ProLogis and the associated
    preferred share purchase rights, and
   
(B) up to $2.00 in cash to the extent that the average price of a ProLogis
    common share, multiplied by 1.10, is less than $25.00.     
          
  The average trading price of ProLogis common shares will be based upon the
daily high and low per share transaction prices for ProLogis common shares for
15 trading days randomly selected from the 30 consecutive trading days ending
on the fifth trading day prior to the closing of the merger.     
   
  For example, based on the closing price of ProLogis common shares on January
29, 1999 of $21.1875, the Meridian common stockholders would receive merger
consideration with a value of approximately $25.00 per share of Meridian common
stock held, consisting of 1.10 ProLogis common shares and $1.69375 in cash.
After the merger, the current Meridian stockholders will own approximately
23.3% of the outstanding common shares of ProLogis, which represents 20.8% on a
fully diluted basis assuming conversion or exchange of all ProLogis convertible
or exchangeable securities.     
   
  The merger cannot be completed unless the shareholders of both companies
approve it. We have scheduled special meetings for our shareholders to vote on
the merger. Your vote is very important.     
          
  This joint proxy statement and prospectus provides you with detailed
information about the proposed merger. We encourage you to read this entire
document carefully. In addition, you may obtain information about our companies
from documents that we have filed with the Securities and Exchange Commission.
       
See the risk factors beginning on page 22 of this joint proxy statement and
prospectus for a discussion of risks that you should consider in evaluating the
merger.     
 
 
 Neither the Securities and Exchange Commission nor
 any state securities commission has approved or
 disapproved these securities or passed upon the
 accuracy or adequacy of this Joint Proxy Statement
 and Prospectus. Any representation to the contrary
 is a criminal offense.
         
      Joint proxy statement and prospectus dated              , 1999     
             and first mailed to shareholders on            , 1999
<PAGE>
 
   
  This joint proxy statement and prospectus incorporates important business and
financial information about ProLogis and Meridian that is not included in or
delivered with this document, including the information described on page 19
under "Where You Can Find More Information." This information is available
without charge to the ProLogis shareholders and the Meridian stockholders upon
written or oral request to the following addresses or telephone numbers and
will be provided by first class mail within one business day of receipt of such
request:     
                                                    
  Investor Relations Department                      Investor Relations
                                                     Department 
  ProLogis Trust                                     
                                                     Meridian Industrial
  14100 East 35th Place                              Trust, Inc. 
  
  Aurora, Colorado 80011                             
                                                     455 Market Street, 17th
  (303) 375-9292                                     Floor 
  
  (800) 820-0181 
                                                     San Francisco, California
                                                     94105     
   
  To obtain timely delivery, the ProLogis shareholders and the Meridian
stockholders must request the information no later than five business days
before they must make their investment decisions. ProLogis shareholders must
make their requests no later than        , 1999, and Meridian shareholders must
make their requests no later than        , 1999.     
                                                        
                                                     (800) 333-2243     
<PAGE>
 
                               TABLE OF CONTENTS
 
<TABLE>   
<CAPTION>
                                                                         Page
                                                                        -------
<S>                                                                     <C>
SUMMARY................................................................       1
  Questions and Answers About the Merger...............................       1
  The Special Meetings of Shareholders.................................       4
  The Merger Agreement.................................................       5
  Selected Historical Financial Data of ProLogis.......................       8
  Selected Historical Financial Data of Meridian.......................      12
  ProLogis Pro Forma Summary Financial Data............................      15
  Comparative Market and Per Share Data................................      17
  Cautionary Statement Regarding Forward-Looking Statements............      18
  About This Joint Proxy Statement and Prospectus......................      18
  Where You Can Find More Information..................................      19
RISK FACTORS...........................................................      22
  Risk factors relating to the merger..................................      22
  Risk factors relating to ownership of ProLogis common shares and
   preferred shares....................................................      25
THE COMPANIES..........................................................      29
  ProLogis.............................................................      29
  Meridian.............................................................      30
  The combined company.................................................      30
THE MERGER.............................................................      31
  Terms of the merger..................................................      31
  Background of the merger.............................................      32
  Reasons for the merger; Recommendations of the ProLogis board........      35
  Opinion of ProLogis' financial advisor...............................      37
  Reasons for the merger; Recommendations of the Meridian board........      43
  Opinion of Meridian's financial advisor..............................      45
  Interests of certain persons ........................................      50
  Voting agreements....................................................      52
  Material federal income tax consequences.............................      52
  Accounting treatment.................................................      55
  Restrictions on sales by affiliates..................................      55
  Appraisal rights.....................................................      56
THE MERGER AGREEMENT...................................................      56
  ProLogis board recommendation........................................      56
  Meridian board recommendation........................................      56
  General..............................................................      56
  Expenses of solicitation.............................................      56
  Effective time of the merger.........................................      57
  Exchange of Meridian shares..........................................      57
  Conditions to the merger.............................................      58
  Representations and warranties.......................................      59
  Certain covenants....................................................      60
  Distributions........................................................      62
  No Solicitation of transactions......................................      62
  Termination..........................................................      63
</TABLE>    
 
                                       i
<PAGE>
 
<TABLE>   
<CAPTION>
                                                                          Page
                                                                         -------
<S>                                                                      <C>
  Termination fees......................................................      64
  Indemnification.......................................................      64
  Amendment and waiver..................................................      65
THE SPECIAL MEETINGS OF SHAREHOLDERS....................................      65
  The ProLogis special meeting..........................................      65
  The Meridian special meeting..........................................      67
COMPARISON OF SHAREHOLDER RIGHTS........................................      68
DESCRIPTION OF PROLOGIS SECURITIES......................................      73
  Common shares.........................................................      73
  Preferred share purchase rights.......................................      75
  Staggered board of trustees...........................................      75
  Certain provisions of Maryland law....................................      75
  Series E preferred shares.............................................      77
PRINCIPAL SHAREHOLDERS OF PROLOGIS......................................      82
LEGAL MATTERS...........................................................      83
INDEPENDENT PUBLIC ACCOUNTANTS AND EXPERTS..............................      83
INDEX TO PRO FORMA CONDENSED CONSOLIDATED FINANCIAL STATEMENTS..........     F-1
ANNEXES
  Agreement and Plan of Merger.......................................... Annex A
  Opinion of Merrill Lynch & Co......................................... Annex B
  Opinion of Goldman, Sachs & Co........................................ Annex C
</TABLE>    
 
                                       ii
<PAGE>
 
                                    SUMMARY
   
  The following summary is qualified in its entirety by the detailed
information appearing elsewhere in this joint proxy statement and prospectus,
including the annexes hereto, or incorporated herein by reference. We urge you
to review the entire joint proxy statement and prospectus including its
annexes.     
       
                     Questions and Answers About the Merger
 
Q: Why are the two companies proposing to merge?
 
A: ProLogis and Meridian expect the combined company resulting from the merger
   to have the following important characteristics, which are intended to
   create long-term shareholder value:
     
  (1) the largest publicly traded industrial real estate investment trust
      with approximately 168.2 million square feet of distribution facilities
      located in 94 markets in the United States, Mexico and Europe;     
     
  (2) a customer base of over 3,100 including 414 who are among ProLogis'
      targeted 1,000 largest users of distribution space;     
 
  (3) operational and property-level cost savings as the result of
      integrating Meridian's assets into ProLogis' established operating
      system; and
 
  (4) larger capitalization which is expected to lead to more favorable
      access to debt and equity capital markets.
 
Q: What are the detriments of the proposed merger?
 
A: ProLogis and Meridian expect the merger to have the following potential
   detriments to their shareholders:
     
  (1) the exchange ratio is fixed, which means that the ProLogis shares that
      Meridian stockholders will receive in the merger may have a greater or
      lesser value than the value contemplated at the time the merger
      agreement was signed because of fluctuations in the market price of
      ProLogis common shares and the limitation on the amount of cash to be
      received by Meridian stockholders;     
 
  (2) the substantial management time and effort that will be required to
      consummate the merger and integrate the operations of the two
      companies; and
 
  (3) the risk that the benefits sought in the merger will not be obtained.
 
Q: What will Meridian stockholders receive for their shares of Meridian stock?
 
A: For each share of Meridian common stock, Meridian common stockholders will
   receive 1.10 common shares of ProLogis and up to $2.00 in cash to the extent
   that an average trading price of a ProLogis common share for a randomly
   selected 15 trading days during a 30 trading day period prior to the merger,
   multiplied by 1.10, is less than $25.00, as shown in the examples below:
 
<TABLE>   
<CAPTION>
   Approximate Average       Number of ProLogis     Cash to be issued for     Dollar value of the
         Trading         common shares to be issued     each share of     consideration to be received
    Price of ProLogis    for each share of Meridian    Meridian common         by Meridian common
      common shares      common stock in the merger  stock in the merger   stockholders in the merger
   -------------------   -------------------------- --------------------- ----------------------------
   <S>                   <C>                        <C>                   <C>
   $22.725 and above                1.10                   $0.00               $25.00 and higher
        $22.50                      1.10                   $0.25                     $25.00
        $22.25                      1.10                   $0.525                    $25.00
        $21.75                      1.10                   $1.075                    $25.00
        $21.50                      1.10                   $1.35                     $25.00
        $21.25                      1.10                   $1.625                    $25.00
        $21.00                      1.10                   $1.90                     $25.00
   $20.91 and below                 1.10                   $2.00                $25.00 and less
</TABLE>    
 
                                       1
<PAGE>
 
 
  Each outstanding share of Meridian Series D cumulative redeemable preferred
  stock will convert into the right to receive one ProLogis preferred share
  of a corresponding series having substantially identical rights and
  preferences.
     
  Based upon the number of shares of Meridian common stock outstanding on
  January 29, 1999, the holders of Meridian common stock immediately prior to
  the merger will hold, immediately after the merger, approximately 23.3% of
  the aggregate number of ProLogis common shares expected to be outstanding
  after the merger, which represents 20.8% on a fully diluted basis assuming
  conversion or exchange of all ProLogis convertible or exchangeable
  securities.     
 
Q: Will ProLogis shareholders receive any shares as a result of the merger?
 
A: No. ProLogis shareholders will continue to hold the same number of ProLogis
   shares they currently own.
 
Q: What do I need to do now?
   
A: Just mail your signed proxy card in the enclosed return envelope as soon as
   possible, so that your shares can be voted at the March   , 1999 ProLogis
   shareholder meeting (if you are a ProLogis shareholder) or at the March   ,
   1999 Meridian stockholder meeting (if you are a Meridian stockholder).     
 
Q: If my shares are held in "street name" by my broker, will my broker vote my
   shares for me?
 
A: Your broker will vote your shares only if you provide instructions to him on
   how to vote. You should contact your broker and ask what directions your
   broker will need from you. Your broker will not be able to vote your shares
   without instructions from you.
 
Q: Can I change my vote after I have mailed my signed proxy card?
 
A: Yes. You can change your vote at any time before your proxy is voted at the
   applicable shareholder meeting. You can do this in one of three ways. First,
   you can send a written notice stating that you revoke your proxy. Second,
   you can complete and submit a new proxy card. Third, you can attend the
   appropriate meeting and vote in person. Your attendance by itself will not,
   however, revoke your proxy. If you have instructed a broker to vote your
   shares, you must follow directions received from your broker to change those
   instructions.
 
Q: Should Meridian stockholders or ProLogis shareholders send in certificates
   now?
 
A: No. If you are a Meridian stockholder, after the merger is completed you
   will receive written instructions for exchanging your shares of Meridian
   common stock for ProLogis common shares (and any cash payments you may be
   entitled to receive). If you are a ProLogis shareholder, you should retain
   your certificates, as you will continue to hold the ProLogis shares you
   currently own.
   
Q: What happens to my distributions prior to the closing of the merger and in
   the future?     
   
A: Meridian plans to continue to pay distributions on its shares of common
   stock until the closing of the merger at approximately the same rates per
   share as were paid by it during the last year. ProLogis plans to continue to
   pay distributions on its common shares consistent with its current
   distribution policy. However, both the ProLogis board of trustees and the
   Meridian board of directors will continue to evaluate their respective
   financial condition and earnings level, which could result in a change in
   the future distribution level. After the merger, ProLogis intends to pay
   distributions in order to maintain its status as a real estate investment
   trust under the Internal Revenue Code of 1986.     
 
 
                                       2
<PAGE>
 
Q: What are the tax consequences of the merger?
   
A: We have structured the merger so that neither ProLogis, Meridian nor our
   respective shareholders or stockholders will recognize any gain or loss for
   federal income tax purposes in the merger, except for tax payable on any
   cash received by Meridian stockholders in the merger. The closing of the
   merger is conditioned, among other things, on the delivery of the legal
   opinions of (1) ProLogis' counsel as to the tax consequences as to ProLogis
   and ProLogis' shareholders and (2) Meridian's counsel as to these tax
   consequences to Meridian and Meridian's stockholders.     
 
Q: What will Meridian stockholders' tax basis be in the ProLogis common shares
   they receive in the merger?
   
A: Your tax basis in the ProLogis common shares will equal your current tax
   basis in your Meridian common stock surrendered in the exchange, decreased
   by the amount of cash received and increased by (i) any amount treated as a
   dividend in such exchange or (ii) the amount of any gain recognized in such
   exchange. See "The Merger--Material federal income tax consequences" on page
   52.     
 
Q: When do you expect the merger to be completed?
 
A: We hope to complete the merger on or before March 30, 1999. We are working
   toward completing the merger as quickly as possible.
 
Q: Who can help answer my questions?
 
A: If you are a ProLogis shareholder and you have more questions about the
   merger, you should contact:
 
      ProLogis Trust
      Investor Relations Department
      14100 East 35th Place
      Aurora, Colorado 80011
      Telephone: (800) 820-0181
      Fax: (303) 576-2600
 
  If you are a Meridian stockholder and you have more questions about the
merger, you should contact:
 
      Meridian Industrial Trust, Inc.
      Investor Relations Department
      455 Market Street, 17th Floor
      San Francisco, California 94105
      Telephone: (415) 228-3900
      Fax: (415) 284-2840
                                  
                               The Companies     
   
ProLogis Trust     
   
14100 East 35th Place     
   
Aurora, Colorado 80011     
   
(303) 375-9292     
   
  ProLogis, which will be the surviving company in the merger, is a real estate
investment trust organized under Maryland law and has elected to be taxed as a
real estate investment trust under the Internal Revenue Code of 1986. ProLogis
is an owner/manager of industrial distribution facilities with nearly 1,300
operating     
 
                                       3
<PAGE>
 
   
facilities throughout North America and Europe, making it the largest publicly
held, U.S. based company to do so. ProLogis is an international operating
company focused exclusively on meeting the distribution space needs of
international, national, regional and local industrial real estate users
through the ProLogis Operating System(TM). As of December 31, 1998, ProLogis,
including its unconsolidated subsidiaries, had 134.7 million square feet of
industrial distribution facilities, which includes 126.1 million square feet of
operating facilities. Additionally, ProLogis had 8.6 million square feet under
development at a total expected investment of $391.9 million, in 90 North
American and European markets. Also, as of December 31, 1998, ProLogis,
including its unconsolidated subsidiaries, owned or controlled 4,678 acres of
land for the future development of approximately 81.6 million square feet of
distribution facilities.     
   
Meridian Industrial Trust, Inc.     
   
455 Market Street, 17th Floor     
   
San Francisco, California 94105     
   
(415) 281-3900     
   
  Meridian is a corporation organized under Maryland law and has elected to be
taxed as a real estate investment trust under the Internal Revenue Code of
1986. Meridian engages primarily in the business of owning, acquiring,
developing, managing and leasing income-producing warehouse/distribution and
light industrial properties. As of December 31, 1998, Meridian, including its
unconsolidated subsidiaries and joint ventures, owned and operated 235
warehouse/distribution and light industrial properties, encompassing
approximately 31.5 million square feet. Meridian had 2.0 million square feet of
warehouse/distribution and light industrial properties under development at a
total expected investment of $72.1 million as of December 31, 1998. In
addition, Meridian owned or controlled 423 acres of land for the future
development of an additional approximately 6.4 million square feet of warehouse
distribution facilities.     
   
The Combined Company     
   
  Upon completion of the merger, ProLogis is expected to have a total market
capitalization of approximately $6.6 billion, based on the closing price of
ProLogis shares on January 29, 1999 and the outstanding principal amount of
indebtedness of the two companies on such date. The combined company will own
more than 1,500 distribution facilities, based on the real estate assets held
by ProLogis and Meridian as of December 31, 1998. The combined real estate
assets, including assets held by unconsolidated subsidiaries and joint
ventures, will consist of approximately 157.6 million square feet of operating
distribution facilities. Also, the combined company will have 10.6 million
square feet of distribution facilities under development at a total expected
investment of $464.0 million in 94 North American and European markets.
Additionally, the combined company will own or control approximately 5,100
acres of land for the future development of approximately 88.0 million square
feet of distribution facilities. The combined company will continue to be taxed
as a real estate investment trust under the Internal Revenue Code of 1986.     
       
       
                      The Special Meetings of Shareholders
   
The ProLogis special meeting (See page 65)     
     
  . The ProLogis special meeting of shareholders is scheduled to be held at
      :   a.m., Mountain Standard Time, on                 , March   , 1999
    at the offices of ProLogis at 14100 East 35th Place, Aurora, Colorado.
        
                                       4
<PAGE>
 
 
  . The ProLogis board of trustees has fixed the close of business on
                    , 1999 as the record date for the determination of
    holders of ProLogis common shares entitled to notice of and to vote at
    the ProLogis special meeting of shareholders.
 
  . The affirmative vote of the holders of at least two-thirds of the
    ProLogis common shares entitled to vote is required to approve the
    merger.
   
The Meridian special meeting (See page 67)     
     
  . The Meridian special meeting of stockholders is scheduled to be held at
      :   a.m., Pacific Standard Time, on                 , March   , 1999 at
                        ,                       .     
 
  . The Meridian board of directors has fixed the close of business on
                    , 1999 as the record date for the determination of
    holders of Meridian common stock entitled to notice of and to vote at the
    Meridian special meeting of stockholders.
 
  . The proposal to approve the merger must be approved by the affirmative
    vote of the holders of a majority of the outstanding shares of Meridian
    common stock entitled to vote on the merger.
 
                              The Merger Agreement
   
  We encourage you to read the entire merger agreement, which is attached as
Annex A to this joint proxy statement and prospectus.     
   
Effective time of the merger     
   
  Subject to the satisfaction (or waiver) of certain conditions, we currently
expect the merger to become effective as soon as practical after the
shareholder votes.     
   
Conditions to the merger (See page 58)     
 
  The completion of the merger depends upon meeting or waiving a number of
conditions, including:
 
    1. approval of the merger by the shareholders of ProLogis and the
  approval of the merger by the stockholders of Meridian;
 
    2. the authorization for listing on the New York Stock Exchange of the
  ProLogis common shares and preferred shares issuable in connection with the
  merger;
     
    3. the completion of the sale of the outstanding shares of common stock
  of Meridian Refrigerated, Inc. to an entity in which ProLogis owns a
  substantial majority of the economic interest; and     
            
    4. the receipt of satisfactory legal opinions regarding Meridian's and
  ProLogis' REIT status for federal income tax purposes and the treatment of
  the merger as a reorganization for federal income tax purposes.     
   
Termination (See page 63)     
 
  ProLogis and Meridian jointly can agree to terminate the merger agreement at
any time, even if the shareholders of both companies have approved the merger.
Also, either company can decide, without the consent of the other, to terminate
the merger agreement if:
     
    1. any governmental entity has issued an injunction or taken other action
  permanently restraining, enjoining or prohibiting the completion of the
  merger and such action has become final and nonappealable;     
 
 
                                       5
<PAGE>
 
    2. the required approval of the shareholders of either party has not been
  obtained;
     
    3. the merger has not been completed on or before July 31, 1999; or     
 
    4. the other party materially breaches the merger agreement.
 
  Meridian may unilaterally terminate the merger agreement if:
     
    1. the Meridian board of directors decides to withdraw or change its
  recommendation of the merger agreement and Meridian gives ProLogis notice
  that it has received a superior acquisition proposal from a third party and
  either ProLogis does not revise its acquisition proposal or the Meridian
  board determines that the third-party acquisition proposal is superior to
  ProLogis' revised proposal; or     
 
    2. the ProLogis board of trustees does not recommend against a tender or
  exchange offer for the acquisition of 50% or more of the ProLogis common
  shares by a third party or if ProLogis enters into or recommends a
  transaction involving the acquisition by a third party of 50% or more of
  the then outstanding ProLogis common shares or all or substantially all of
  ProLogis' assets.
   
  ProLogis may unilaterally terminate the merger agreement if the Meridian
board of directors withdraws or changes its recommendation that its
stockholders approve the merger agreement in connection with a superior
proposal from a third party.     
   
Termination fees (See page 64)     
 
  ProLogis will be required to pay a $25 million termination fee to Meridian if
Meridian terminates the merger agreement because ProLogis fails to recommend
against a tender or exchange offer for the acquisition of 50% or more of the
ProLogis common shares by a third party or if ProLogis enters into or
recommends a transaction involving the acquisition by a third party of 50% or
more of the then outstanding ProLogis common shares or all or substantially all
of ProLogis' assets.
   
  Meridian also will be required to pay a termination fee under the
circumstances described below. The termination fee will be $25 million if The
Prudential Insurance Company of America, Meridian's largest stockholder, enters
into a voting agreement with ProLogis to vote in favor of the merger. If The
Prudential Insurance Company does not enter into such an agreement, the
termination fee will be $40 million. The Prudential Insurance Company and five
separate insurance accounts administered by The Prudential Insurance Company
collectively own approximately 27.0% of the outstanding shares of Meridian
common stock. Prudential Real Estate Investors, a division of Prudential
Investment Corporation manages these investments for The Prudential Insurance
Company and the five separate accounts (collectively, "Prudential Real
Estate"). ProLogis and Prudential Real Estate are discussing executing a voting
agreement, but have not entered into a voting agreement as of the date hereof.
       
  The circumstances under which Meridian may be required to pay the termination
fee are as follows:     
     
    1. the Meridian board withdraws or changes its recommendation that
  stockholders approve the merger agreement because it determines to accept a
  superior acquisition proposal from a third party;     
            
    2. Meridian stockholders do not approve the merger and at the time of the
  vote a third party acquisition proposal is pending and, within 12 months of
  the vote, Meridian completes an acquisition proposal with any party; or
         
    3. ProLogis terminates the merger agreement because of a material breach
  by Meridian and at the time of the termination an acquisition proposal is
  pending and, within 12 months after the termination, Meridian agrees to or
  completes an acquisition proposal with any party.     
   
  The termination fee payable under these circumstances will be reduced by any
fee already paid to ProLogis as a result of the termination.     
 
                                       6
<PAGE>
 
          
  If the merger agreement is terminated by ProLogis or Meridian because of the
other party's breach of the merger agreement, the breaching party will pay the
lesser of $1.25 million or the terminating party's out-of-pocket expenses
incurred in connection with the merger agreement. In the event the merger
agreement is terminated as a result of the willful breach of the merger
agreement, the breaching party will be fully liable to the other party for any
damages resulting from the breach.     
   
Opinions of financial advisors (See pages 37 through 43 and 45 through 54)     
   
  Each of Merrill Lynch & Co. and Goldman, Sachs & Co. rendered opinions as to
the fairness of the consideration to be paid or received in the merger from a
financial point of view. These opinions, which are based upon and subject to
various qualifications and assumptions, are attached as Annexes B and C to this
joint proxy statement and prospectus, respectively. We encourage you to read
these opinions. Summaries of the analyses prepared by Merrill Lynch & Co. and
Goldman, Sachs & Co. are included in this joint proxy statement and prospectus
under the captions "The Merger--Opinion of ProLogis' financial advisor" and "--
Opinion of Meridian's financial advisor."     
   
Appraisal rights     
   
  Because the ProLogis common shares and the Meridian common stock and Meridian
Series D cumulative redeemable preferred stock are listed on the New York Stock
Exchange, neither the ProLogis shareholders nor the Meridian stockholders have
appraisal rights under Maryland law.     
   
Regulatory Approvals     
   
  The parties are not aware of any federal or state regulatory approvals which
must be obtained in connection with the merger and related transactions.     
 
                                       7
<PAGE>
 
                 Selected Historical Financial Data of ProLogis
   
  We are providing the following financial information to aid you in your
analysis of the financial aspects of the merger. We derived this information
from audited consolidated financial statements for the years ended December 31,
1993 through 1997 and unaudited consolidated financial statements for the nine
months ended September 30, 1998 (amounts in thousands, except per share data).
The information is only a summary and you should read it together with
ProLogis' historical consolidated financial statements, and related notes,
contained in the annual reports and other information that ProLogis files with
the Securities and Exchange Commission. See "Where You Can Find More
Information" on page 19.     
   
  As presented in the table below, funds from operations represents ProLogis'
net earnings, computed in accordance with generally accepted accounting
principles, before minority interest, before gains or losses from debt
restructuring, before gains or losses on disposition of depreciated real
estate, before gains or losses from mark to market adjustments resulting from
the remeasurement, based on current foreign currency exchange rates, of
intercompany and other debt of ProLogis' foreign subsidiaries, before deferred
tax benefits and deferred tax expenses of ProLogis' taxable subsidiaries,
before significant non-recurring items that materially distort the comparative
measurement of company performance over time, plus real estate depreciation and
amortization, exclusive of amortization of loan costs, and after adjustments
for unconsolidated subsidiaries calculated to compute their funds from
operations on the same basis as ProLogis. ProLogis believes that funds from
operations is helpful to a reader as a measure of the performance of an equity
real estate investment trust because, along with cash flow from operating,
investing and financing activities, it provides a reader with an indication of
the ability of ProLogis to incur and service debt, to make capital expenditures
and to fund other cash needs. The funds from operations measure presented by
ProLogis, while consistent with the National Association of Real Estate
Investment Trusts' definition and that of Meridian, will not be comparable to
similarly titled measures of other real estate investment trusts which do not
compute funds from operations in a manner consistent with ProLogis. Funds from
operations is not intended to represent cash made available to shareholders.
Funds from operations should not be considered as an alternative to net
earnings or any other generally accepted accounting principles measurement of
performance as an indicator of ProLogis' operating performance, or as an
alternative to cash flows from operating, investing or financing activities as
a measure of liquidity.     
 
 
                                       8
<PAGE>
 
<TABLE>
<CAPTION>
                           Nine Months
                              Ended
                          September 30,         Years Ended December 31,
                          ------------- ------------------------------------------
                              1998        1997     1996      1995    1994    1993
                          ------------- -------- --------  -------- ------- ------
<S>                       <C>           <C>      <C>       <C>      <C>     <C>
Operating Data:
Rental income...........    $251,605    $284,533 $227,000  $153,879 $70,609 $9,963
Other real estate
 income.................      10,542      12,291    5,342     2,899     --     --
Income from
 unconsolidated
 subsidiaries...........       1,930       3,278      --        --      --     --
Total revenues..........     271,425     302,494  233,463   158,503  71,702 10,319
Rental expenses,
 including property
 management fees........      20,458      27,008   26,674    18,460   7,244  1,093
REIT management fees
 paid to affiliate......         --       17,791   21,472    14,207   8,673  1,323
General and
 administrative.........      14,060       5,742    1,025       839     770    411
Administrative services
 fee paid to affiliate..       1,566       1,113      --        --      --     --
Interest rate hedge
 expense(1).............      27,652         --       --        --      --     --
Costs incurred in
 acquiring management
 companies from
 affiliate(2)...........         --       75,376      --        --      --     --
Earnings from
 operations(1)(2).......      77,454      35,931   82,710    50,991  28,058  4,531
Gain (loss) on
 dispositions of
 depreciated real
 estate, net............       4,278       7,378      (29)    1,053      35    --
Preferred share cash
 dividends paid.........      35,543      35,318   25,895     6,698     --     --
Net earnings
 attributable to common
 shares(1)(2)...........      43,088       4,431   53,460    42,015  25,101  4,412
Common share cash
 distributions paid.....    $111,769    $106,556 $ 85,340  $ 64,445 $37,698 $7,001
Per Share Data:
Net earnings
 attributable to common
 shares(1)(2):
  Basic.................    $   0.36    $   0.04 $   0.63  $   0.61 $  0.57 $ 0.47
  Diluted...............        0.35        0.04     0.63      0.61    0.57   0.47
Series A preferred share
 dividends paid.........    $   1.76    $   2.35 $   2.35  $   1.24     --     --
Series B preferred share
 dividends paid.........        1.31        1.75     1.50       --      --     --
Series C preferred share
 dividends paid.........        3.20        4.27     0.57       --      --     --
Series D preferred share
 dividends paid.........        0.93         --       --        --      --     --
Common share
 distributions declared
 and paid...............    $   0.92    $   1.07 $   1.01  $   .935 $  0.85 $ 0.75
Weighted average common
 shares outstanding:
  Basic.................     121,183     100,729   84,504    68,924  44,265  9,334
  Diluted...............     121,421     100,869   84,511    74,422  44,277  9,336
</TABLE>
 
                                       9
<PAGE>
 
 
<TABLE>   
<CAPTION>
                                                         December 31,
                         September 30, -----------------------------------------------------
                             1998        1997       1996       1995       1994       1993
                         ------------- ---------  ---------  ---------  ---------  ---------
<S>                      <C>           <C>        <C>        <C>        <C>        <C>
Other Data:
Reconciliation of net
 earnings to funds from
 operations:
Net earnings
 attributable to common
 shares.................   $  43,088   $   4,431  $  53,460  $  42,015  $  25,101  $   4,412
Add (Deduct):
  Real estate
   depreciation and
   amortization.........      72,902      76,275     59,850     39,767     18,169      2,525
  Minority interest.....       3,101       3,560      3,326      3,331      2,992        119
  (Gain) loss on
   dispositions of
   depreciated real
   estate, net..........      (4,278)     (7,378)        29     (1,053)       --         --
  Costs incurred in
   acquiring management
   companies from
   affiliate(2).........         --       75,376        --         --         --         --
  Interest rate hedge
   expense(1)...........      27,652         --         --         --         --         --
  Reconciling items from
   unconsolidated
   subsidiaries.........      32,702       2,419        --         --         --         --
  Other, net............      (4,019)      6,376        225        --          45        133
                           ---------   ---------  ---------  ---------  ---------  ---------
Funds from operations
 attributable to common
 shares.................   $ 171,148   $ 161,059  $ 116,890  $  84,060  $  46,307  $   7,189
                           =========   =========  =========  =========  =========  =========
Weighted average common
 shares outstanding:
  Basic (includes
   convertible
   partnership units)...     126,253     105,919     89,699     74,409     49,022      9,447
  Diluted...............     136,647     116,371     89,700     74,422     49,034      9,449
  Net cash provided by
   operating
   activities...........   $ 174,320   $ 192,273  $ 136,201  $ 100,154  $  47,222  $  12,084
  Net cash used in
   investing
   activities...........    (915,812)   (570,861)  (665,878)  (628,795)  (631,871)  (260,780)
  Net cash provided by
   financing
   activities...........   $ 748,133   $ 398,827  $ 512,212  $ 529,606  $ 599,382  $ 254,770
  Ratio of earnings to
   combined fixed
   charges and preferred
   share dividends......         1.2          (3)       1.5        1.7        3.3       11.3
</TABLE>    
 
                                       10
<PAGE>
 
<TABLE>   
<CAPTION>
                                                            December 31,
                          September 30, ----------------------------------------------------
                              1998         1997       1996       1995       1994      1993
                          ------------- ---------- ---------- ---------- ---------- --------
<S>                       <C>           <C>        <C>        <C>        <C>        <C>
Financial Position:
Real estate owned, at
 cost...................   $3,312,567   $2,846,591 $2,399,431 $1,767,307 $1,133,484 $373,135
Land held for
 development............      171,250      159,645    109,316     60,363     42,147   21,667
Investments in and
 advances to
 unconsolidated
 subsidiaries...........      525,138       86,139        --         --         --       --
Total assets............    3,924,128    3,033,953  2,462,306  1,833,972  1,194,937  401,855
Lines of credit and
 short-term
 borrowings(4)..........      309,500          --      38,600     81,000    160,000   83,406
Mortgage notes payable..      134,534      133,028    139,952    145,276    144,262   40,109
Long-term debt..........      958,586      724,052    524,191    324,527        --       --
Total liabilities.......    1,558,518    1,003,912    805,933    639,040    350,607  141,618
Minority interest.......       51,358       53,304     56,984     58,741     66,555   50,786
Total shareholders'
 equity.................   $2,314,252   $1,976,737 $1,599,389 $1,136,191 $  777,775 $209,451
Number of common shares
 outstanding............      123,092      117,364     93,677     81,416     64,587   19,762
</TABLE>    
- --------
(1) Earnings from operations for the nine months ended September 30, 1998
    reflect the $27.7 million mark to market adjustment associated with two
    interest rate hedges that, due to changing market conditions, no longer
    qualify for hedge accounting treatment under generally accepted accounting
    principles. This expense was not deducted for purposes of calculating funds
    from operations. For purposes of calculating funds from operations,
    ProLogis has deferred this expense and intends to amortize it as a
    component of interest expense over the term of a future debt offering.
(2) Earnings from operations for 1997 reflect the one-time, non-cash charge of
    $75.4 million associated with the costs incurred in acquiring ProLogis'
    management companies from an affiliate in September 1997. This one-time
    charge was not deducted for purposes of calculating funds from operations
    due to its non-recurring and non-cash nature.
   
(3) For 1997, earnings from operations were insufficient to cover combined
    fixed charges and preferred share dividends by $21.3 million because of the
    one-time charge of $75.4 million referenced in note (2) above.     
   
(4) As of January 29, 1999, ProLogis had $260.7 million of borrowings
    outstanding under its $375 million unsecured lines of credit and $150.0
    million of short-term borrowings outstanding.     
 
                                       11
<PAGE>
 
                 Selected Historical Financial Data of Meridian
   
  We are providing the following financial information to aid you in your
analysis of the financial aspects of the merger. We derived this information
from audited financial statements for the period ended December 31, 1995 and
the years ended December 31, 1997 and 1996 and unaudited financial statements
for the nine months ended September 30, 1998 (amounts in thousands, except per
share data). The information is only a summary and you should read it together
with Meridian's historical financial statements, and related notes, contained
in the annual reports and other information that Meridian files with the
Securities and Exchange Commission. See "Where You Can Find More Information"
on page 19.     
   
As shown in the table below, funds from operations is calculated as net income
or loss (computed in accordance with generally accepted accounting principles),
excluding gains or losses from debt restructurings, divestiture of properties
and significant non-recurring items that materially distort the comparative
measurement of Meridian over time, plus depreciation and amortization of real
estate assets, and after adjustment for unconsolidated subsidiaries,
partnerships and joint ventures calculated to compute their funds from
operations on the same basis as Meridian. Meridian believes that funds from
operations is helpful to a reader as a measure of the performance of an equity
real estate investment trust because, along with cash flows from operating,
investing and financing activities, it provides a reader with an indication of
the ability of Meridian to incur and service debt, to make capital expenditures
and to fund other cash needs. The funds from operations measure presented by
Meridian, while consistent with the National Association of Real Estate
Investment Trusts' definition and that of ProLogis, will not be comparable to
similarly titled measures of other real estate investment trusts which do not
compute funds from operations in a manner consistent with Meridian. Funds from
operations is not intended to represent cash made available to shareholders.
Funds from operations should not be considered as an alternative to net
earnings or any other generally accepted accounting principles measurement of
performance as an indicator of Meridian's operating performance, or as an
alternative to cash flows from operating, investing or financing activities as
a measure of liquidity.     
 
<TABLE>
<CAPTION>
                                                            Years Ended
                                    Nine Months Ended      December 31,
                                      September 30,   ------------------------
                                          1998         1997    1996(1) 1995(2)
                                    ----------------- -------  ------- -------
<S>                                 <C>               <C>      <C>     <C>
Operating Data:
Rental income.....................       $72,770      $54,566  $29,758 $   --
Other real estate income..........           695          390      376     --
Income from unconsolidated
 subsidiaries and joint ventures..         3,019          645      --      --
Total revenues....................        89,739       66,150   35,041      33
Rental expenses, including
 property management fees.........         5,218        5,199    4,259     --
General and administrative........         6,015        6,212    4,273   1,321
Interest rate hedge expense (3)...        12,633          --       --      --
Earnings from operations (1) (3)..        19,539       23,988   11,161  (1,293)
Gain (loss) on dispositions of
 depreciated real estate, net.....         4,497         (462)   3,313     --
Preferred share cash dividends
 paid.............................         2,927        2,818    2,412      29
Net earnings (loss) attributable
 to common shares (1) (3).........        20,686       19,870   11,651  (1,322)
Common share cash distributions
 paid.............................       $30,584      $24,425  $10,544 $   --
</TABLE>
 
                                       12
<PAGE>
 
<TABLE>   
<CAPTION>
                              Nine Months Ended   Years Ended December 31,
                                September 30,   -------------------------------
                                    1998          1997     1996(1)    1995(2)
                              ----------------- ---------  --------  ----------
<S>                           <C>               <C>        <C>       <C>
Per Share Data:
Net earnings attributable to
 common shares (1) (3):
  Basic.....................     $     0.68     $    1.12  $   1.37  $(1,468.89)
  Diluted...................           0.67          1.09      1.33      (32.05)
Series A preferred stock
 dividends paid.............            --            --        --         0.03
Series B preferred stock
 dividends paid.............           0.99          1.24      1.06         --
Series D preferred stock
 dividends paid.............           0.55           --        --          --
Common share distributions
 paid.......................     $     0.99     $    1.16  $   0.99         --
Weighted average common
 shares outstanding
  Basic.....................         30,623        17,791     8,476           1
  Diluted...................         31,080        18,264    10,546          41
Other Data:
Reconciliation of net
 earnings to funds from
 operations:
Net earnings attributable to
 common shares..............     $   20,686     $  19,870  $ 11,651  $   (1,322)
Add (Deduct):
  Real estate depreciation
   and amortization.........         16,616        11,109     4,915         --
  Minority interest.........            379           --        --          --
  (Gain) loss on
   dispositions of
   depreciated real estate,
   net......................         (4,497)          462    (3,313)        --
  Interest rate hedge
   expense (3)..............         12,633           --        --          --
  Reconciling items from
   unconsolidated
   subsidiaries and joint
   ventures.................            624           --        --          --
  Other, net................          1,821         3,626     2,823          29
                                 ----------     ---------  --------  ----------
Funds from operations
 attributable to common
 shares.....................     $   48,262     $  35,067  $ 16,076  $   (1,293)
                                 ==========     =========  ========  ==========
Weighted average common
 shares outstanding:
  Basic (4).................         30,623        17,791     8,476           1
  Diluted...................         33,450        20,537    10,546          41
Net cash provided (used) by
 operating activities.......     $   40,921     $  37,286  $ 15,132  $     (459)
Net cash used in investing
 activities.................       (283,760)     (177,402)  (80,819)       (576)
Net cash provided by
 financing activities.......     $  238,519     $ 145,029  $ 68,154  $    1,510
Ratio of earnings to
 combined fixed charges and
 preferred share
 dividends (1) (3)..........            1.8           2.2       2.3         N/A
Financial Position:
Real estate owned, at cost..     $1,080,406     $ 844,740  $326,349  $      --
Land held for development...         26,393           --        --          --
Investments in and advances
 to unconsolidated
 subsidiaries...............         45,907           --        --          --
Total assets................      1,177,627       863,512   333,063       3,724
Line of credit (5)..........        235,300        20,500    11,500         --
Mortgage notes payable......         87,312        76,597    66,094         --
Long-term debt (6)..........        160,102       106,109       --          --
Total liabilities...........        532,585       288,241    89,550       3,438
Minority interest...........         17,605         5,132       --          --
Total shareholders' equity
 (deficit) (7)..............     $  627,437     $ 570,139  $243,513  $     (714)
Number of common shares
 outstanding (7)............         31,674        30,166    13,596           1
</TABLE>    
 
                                       13
<PAGE>
 
- --------
   
(1) Meridian was incorporated on May 18, 1995. On February 23, 1996, Meridian
    merged with three REITs, with Meridian as the surviving entity (that
    transaction is referred to as the "Meridian Merger"). In addition,
    concurrent with the Meridian Merger, Meridian acquired certain properties
    and assumed certain mortgage notes (that transaction is referred to as the
    "Asset Purchase"). Except for interest earned on its investments and
    general and administrative expenses which were incurred and accrued,
    Meridian had no operating activities prior to the Meridian Merger and Asset
    Purchase transactions.     
(2) Represents the period from inception (May 18, 1995) to December 31, 1995.
(3) Earnings from operations for the nine months ended September 30, 1998
    include a one-time non-recurring expense of $12.6 million resulting from a
    termination of an interest rate protection agreement Meridian entered into
    in May 1998 in anticipation of a near-term debt offering. Meridian was
    prevented from executing the planned offering due to an unanticipated and
    rapid deterioration of the credit markets.
          
(4) Meridian does not assume conversion of limited partnership units in
    computing basic weighted average common shares outstanding for purposes of
    earnings per share as the effect is antidilutive.     
   
(5) As of January 29, 1999, Meridian had $319.9 million of borrowings
    outstanding under its $350 million unsecured line of credit.     
   
(6) On November 20, 1997, Meridian completed a private offering to
    institutional investors of $160 million in principal of unsecured senior
    notes. In connection with this transaction, Meridian entered into two
    forward exchange rate contracts which resulted in a payment to Meridian
    totaling $109,000, which was accounted for as a premium.     
   
(7) As of December 31, 1995, the initial capitalization of Meridian consisted
    of 900 shares of common stock. In addition, four other real estate
    investment trusts purchased shares of Series A preferred stock aggregating
    $1 million, of which 920,500 shares were cancelled and 79,500 shares were
    redeemed concurrent with the Meridian Merger and Asset Purchase
    transactions.     
 
                                       14
<PAGE>
 
 
                   ProLogis Pro Forma Summary Financial Data
   
  The merger will be accounted for as a purchase which means that ProLogis will
record the assets and liabilities acquired from Meridian at ProLogis' cost, the
consideration paid to Meridian stockholders in the merger. For a description of
purchase accounting see "The Merger--Accounting treatment" on page 55.     
 
  We have presented below unaudited pro forma financial information that
reflects the purchase method of accounting and is intended to give you a better
picture of what our businesses might have looked like had the merger occurred
on January 1, 1997 (amounts in thousands, except per share data). We prepared
the pro forma condensed consolidated balance sheet by making adjustments to
reflect the assets and liabilities acquired at their fair value and made
certain other merger-related adjustments. We prepared the pro forma condensed
consolidated statements of earnings from operations by combining the historical
amount of earnings of each company. We then adjusted the combined amount to
reflect differences in the operating results that would have resulted if the
merger had occurred on January 1, 1997. The companies may have performed
differently if they had been combined. You should not rely on the pro forma
information as being indicative of the historical results that we would have
had or the future results that we will experience after the merger.
 
  The information is only a summary and you should read it together with
ProLogis' and Meridian's historical financial statements incorporated herein by
reference, and the ProLogis pro forma condensed consolidated financial
statements included or incorporated herein by reference.
 
<TABLE>   
<CAPTION>
                                           Nine Months Ended     Year Ended
                                           September 30, 1998 December 31, 1997
                                           ------------------ -----------------
<S>                                        <C>                <C>
Operating Data:
  Rental income...........................    $   333,615        $   407,834
  Other real estate income................         10,542             12,291
  Income from unconsolidated subsidiaries
   and joint ventures.....................          5,813              6,501
  Total revenues..........................        358,657            432,209
  Rental expenses, including property
   management fees........................         26,621             45,163
  REIT management fees paid to affiliate..            --              19,938
  General and administrative..............         15,547              6,963
  Administrative services fees paid to
   affiliate..............................          1,566              1,113
  Interest rate hedge expense (1).........         40,285                --
  Costs incurred in acquiring management
   companies from affiliate (2)...........            --              75,376
  Earnings from operations before minority
   interest, excluding gains on
   dispositions (1)(2)....................         98,003             74,000
  Preferred share cash dividends paid.....         38,824             39,693
  Net earnings from operations
   attributable to common shares (1)(2)...    $    55,182        $    30,087
Per Share Data:
  Net earnings from operations
   attributable to common shares (1)(2):
    Basic.................................    $      0.34        $      0.21
    Diluted...............................    $      0.34        $      0.21
  Weighted average common shares
   outstanding:
    Basic.................................        161,023            140,569
    Diluted...............................        161,261            140,709
</TABLE>    
 
                                       15
<PAGE>
 
<TABLE>   
<CAPTION>
                                           Nine Months Ended     Year Ended
                                           September 30, 1998 December 31, 1997
                                           ------------------ -----------------
<S>                                        <C>                <C>
Other Data:
  Reconciliation of net earnings from
   operations to funds from operation:
  Net earnings from operations
   attributable to common shares..........    $    55,182        $    30,087
  Add (Deduct):
    Real estate depreciation and
     amortization.........................         97,992            111,584
    Minority interest.....................          3,952              4,190
    Costs incurred in acquiring management
     companies from affiliate (2).........            --              75,376
    Interest rate hedge expense (1).......         40,285                --
    Net foreign currency (gain) loss on
     remeasurement of intercompany debt...         (3,417)               348
    Foreign currency (gain) loss related
     to acquisition of affiliate..........         (2,054)             6,028
    Non-recurring costs...................          1,452                --
    Parent company's share of reconciling
     items from unconsolidated
     subsidiaries and joint ventures......         33,836              3,933
                                              -----------        -----------
  Funds from operations attributable to
   common shares..........................    $   227,228        $   231,546
                                              ===========        ===========
  Weighted average common shares
   outstanding:
    Basic (includes convertible
     partnership units)...................        166,624            146,290
    Diluted...............................        177,018            156,742
  Net cash provided by operating
   activities.............................    $   223,460        $   278,635
  Net cash used by investing activities...     (1,196,908)        (1,183,991)
  Net cash provided by financing
   activities.............................    $   972,962        $   936,486
  Ratio of earnings to combined fixed
   charges and preferred share dividends..            1.3                1.1
<CAPTION>
                                                    September 30, 1998
                                                    ------------------
Financial Position:
<S>                                        <C>                <C>
  Real estate owned, at cost..............              $4,778,986
  Land held for development...............                171,250
  Investments in and advances to
   unconsolidated subsidiaries and joint
   ventures...............................                 571,045
  Total assets............................               5,471,938
  Lines of credit and short-term
   borrowings.............................                 626,655
  Mortgage notes payable..................                 247,165
  Long-term debt..........................               1,114,673
  Total liabilities.......................               2,194,398
  Minority interest.......................                  68,963
  Total shareholders' equity..............              $3,208,577
  Number of common shares outstanding.....                 162,933
</TABLE>    
- --------
(1) Pro forma earnings from operations for the nine months ended September 30,
    1998 reflect $40.3 million of charges associated with interest rate hedges
    and an interest rate protection agreement that, due to changing market
    conditions, no longer qualify for hedge accounting treatment under
    generally accepted accounting principles. This expense was not deducted for
    purposes of calculating funds from operations.
(2) Earnings from operations for 1997 reflect the one-time, non-cash charge of
    $75.4 million associated with the costs incurred in acquiring ProLogis'
    management companies from an affiliate in September 1997. This one-time
    charge was not deducted for purposes of calculating funds from operations
    due to its non-recurring and non-cash nature.
 
                                       16
<PAGE>
 
                     Comparative Market and Per Share Data
   
  We have summarized below the per share information for our respective
companies on an historical basis, pro forma basis prior to the merger, combined
pro forma basis and combined equivalent basis. The combined pro forma summary
amounts are based on the purchase method of accounting. The Meridian per share
equivalents are calculated by multiplying the combined pro forma per share
amounts by 1.10, without giving effect to any cash which may be paid in the
merger. Meridian stockholders will receive 1.10 ProLogis common shares in
exchange for each share of Meridian common stock and up to $2.00 in cash to the
extent that an average price of a ProLogis common share, multiplied by 1.10, is
less than $25.00. The following information should be read together with the
historical and pro forma financial statements included or incorporated by
reference herein.     
 
  On November 16, 1998, the last trading day prior to the announcement of the
signing of the merger agreement, the closing price of a ProLogis common share
was $21.1875. On the same day, the closing price of a share of Meridian common
stock was $22.1875. The equivalent per share value of a share of Meridian
common stock on such date, applying the merger consideration per share
including cash, was $25.00.
 
<TABLE>   
<CAPTION>
                                           Nine Months Ended
                                             September 30,      Year Ended
                                                 1998        December 31, 1997
                                           ----------------- -----------------
                                           ProLogis Meridian ProLogis Meridian
                                           -------- -------- -------- --------
<S>                                        <C>      <C>      <C>      <C>
Earnings from operations attributable to
 common shares
 per share (1) (2):
 Basic:
  Historical (3)..........................  $ 0.32   $ 0.53   $(0.03)  $ 1.19
  Pro forma prior to merger (4)...........  $ 0.32   $ 0.52   $(0.08)  $ 1.23
  Combined pro forma (5)..................  $ 0.34      --    $ 0.21      --
  1.10 combined pro forma.................     --    $ 0.37      --    $ 0.23
 Diluted:
  Historical (3)..........................  $ 0.32   $ 0.52   $(0.03)  $ 1.16
  Pro forma prior to merger (4)...........  $ 0.32   $ 0.52   $(0.08)  $ 1.21
  Combined pro forma (5)..................  $ 0.34      --    $ 0.21      --
  1.10 combined pro forma.................     --    $ 0.37      --    $ 0.23
Distributions per common share (6):
  Historical..............................  $ 0.92   $ 0.99   $ 1.07   $ 1.16
Book value per common share (at end of
 period):
  Historical..............................  $13.28   $17.44   $13.14   $17.74
  Pro forma prior to merger (4)...........  $13.28   $17.44      N/A      N/A
  Combined pro forma (5)..................  $15.21      N/A      N/A      N/A
  1.10 combined pro forma.................     N/A   $16.73      N/A      N/A
</TABLE>    
- --------
(1) ProLogis' historical and pro forma prior to merger earnings from operations
    for the nine months ended September 30, 1998 reflect the impact of a mark-
    to-market charge of $27.7 million associated with two interest rate hedges
    and for the year ended December 31, 1997 reflect the impact of a one-time,
    non-cash charge of $75.4 million associated with the costs incurred in
    acquiring ProLogis' management companies from an affiliate.
(2) Meridian's historical and pro forma prior to merger earnings from
    operations for the nine months ended September 30, 1998 reflect a $12.6
    million expense associated with terminating an interest rate protection
    agreement.
   
(3) Earnings from operations attributable to common shares for each period
    presented represents earnings from operations for the applicable period
    reduced by minority interest in earnings and preferred share distributions.
           
(4) Reflects the pro forma effect, where appropriate, of certain transactions
    involving the acquisitions and dispositions of industrial distribution
    facilities by ProLogis and Meridian as described on page F-2.     
   
(5) Reflects the adjustments described in notes (1) and (2) on a combined
    basis.     
   
(6) The post-merger distribution rate has not been determined. See "The Merger
    Agreement--Distributions" on page 62.     
 
                                       17
<PAGE>
 
            
         Cautionary Statement Regarding Forward-Looking Statements     
 
  The following statements are or may constitute forward-looking statements
within the meaning of Section 27A of the Securities Act of 1933 and Section 21E
of the Securities Exchange Act of 1934:
     
    (i) Certain statements, including possible or assumed future results of
  operations of ProLogis and Meridian contained in "Summary," "The Merger--
  Background of the merger," "The Merger--Reasons for the merger;
  Recommendations of the ProLogis board," "The Merger--Opinion of ProLogis'
  financial advisor," "The Merger--Reasons for the merger; Recommendations of
  the Meridian board" and "The Merger--Opinion of Meridian's financial
  advisor," including any forecasts, projections and descriptions of
  anticipated cost savings or other synergies referred to therein, and
  certain statements incorporated by reference from documents filed with the
  Securities and Exchange Commission by ProLogis and Meridian, including any
  statements contained herein or therein regarding the development or
  possible or assumed future results of operations of ProLogis' and
  Meridian's businesses, the markets for ProLogis' and Meridian's services
  and products, anticipated capital expenditures, competition or the effects
  of the merger of Meridian with and into ProLogis;     
 
    (ii) any statements preceded by, followed by or that include the words
  "believes," "expects," "anticipates," "intends" or similar expressions; and
 
    (iii) other statements contained or incorporated by reference herein
  regarding matters that are not historical facts.
 
Because such statements are subject to risks and uncertainties, actual results
may differ materially from those expressed or implied by such forward-looking
statements. ProLogis and Meridian shareholders are cautioned not to place undue
reliance on such statements, which speak only as of the date thereof.
 
  Among the factors that could cause actual results to differ materially are:
general economic conditions, competition and the supply of and demand for
industrial distribution facilities in the combined company's markets, interest
rate levels, the availability of financing, potential environmental liability
and other risks associated with the ownership, development and acquisition of
industrial distribution facilities, including risks that tenants will not take
or remain in occupancy or pay rent, or that construction or operating costs may
be greater than anticipated, economies generated by the merger, inflationary
trends, and other risks detailed from time to time in the reports filed with
the Securities and Exchange Commission by ProLogis and Meridian.
 
  The cautionary statements contained or referred to in this section should be
considered in connection with any subsequent written or oral forward-looking
statements that may be issued by ProLogis or Meridian or persons acting on its
or their behalf. Except for their ongoing obligations to disclose material
information as required by the federal securities laws, neither ProLogis nor
Meridian undertakes any obligation to release publicly any revisions to any
forward-looking statements to reflect events or circumstances after the date
hereof or to reflect the occurrence of unanticipated events.
                 
              About This Joint Proxy Statement And Prospectus     
   
  This joint proxy statement and prospectus is part of a registration statement
that ProLogis filed with the Securities and Exchange Commission relating to the
ProLogis common shares and preferred shares being issued in connection with the
merger. This joint proxy statement and prospectus provides you with a general
description of the securities ProLogis will offer. You should read this joint
proxy statement and prospectus together with the additional information
described under the heading "Where You Can Find More Information."     
 
                                       18
<PAGE>
 
                       
                    Where You Can Find More Information     
 
  ProLogis and Meridian are subject to the reporting requirements of the
Securities Exchange Act of 1934, as amended, and each files reports, proxy
statements and other information with the Securities and Exchange Commission.
You may read and copy any materials ProLogis or Meridian files with the
Securities and Exchange Commission at its Public Reference Room at 450 Fifth
Street, N.W., Washington, D.C. 20549. You may obtain information on the
operation of the Public Reference Room by calling the Securities and Exchange
Commission at 1-800-SEC-0330. In addition, the Securities and Exchange
Commission maintains an Internet site that contains reports, proxies,
information statements, and other information regarding issuers that file
electronically, and the address of that site is http://www.sec.gov. ProLogis'
outstanding common shares and Meridian's outstanding common stock are listed on
the New York Stock Exchange under the symbols "PLD" and "MDN", respectively,
and all reports, proxy statements and other information filed by ProLogis and
Meridian with the New York Stock Exchange may be inspected at the New York
Stock Exchange's offices at 20 Broad Street, New York, New York 10005. In
addition, warrants to purchase shares of Meridian's common stock are listed on
the American Stock Exchange and such reports, proxy statements and other
information filed by Meridian with the American Stock Exchange may be inspected
at the American Stock Exchange's offices at 86 Trinity Place, New York, New
York 10006-1881.
   
  ProLogis has filed with the Securities and Exchange Commission a registration
statement on Form S-4 under the Securities Act of 1933, as amended, with
respect to the common shares and preferred shares of ProLogis being offered in
the merger. This joint proxy statement and prospectus, which constitutes part
of the registration statement, does not contain all of the information set
forth in the registration statement. Certain parts of the registration
statement are omitted from the joint proxy statement and prospectus in
accordance with the rules and regulations of the Securities and Exchange
Commission. For further information, your attention is directed to the
registration statement. Statements made in this joint proxy statement and
prospectus concerning the contents of any documents referred to herein are not
necessarily complete, and in each case are qualified in all respects by
reference to the copy of such document filed with the Securities and Exchange
Commission.     
   
  The Securities and Exchange Commission allows ProLogis and Meridian to
"incorporate by reference" the information ProLogis and Meridian file with the
Securities and Exchange Commission, which means that ProLogis and Meridian can
disclose important information to you by referring you to those documents. The
information incorporated by reference is an important part of this joint proxy
statement and prospectus, and information that ProLogis and Meridian file later
with the Securities and Exchange Commission will automatically update and
supersede this information.     
 
  ProLogis incorporates by reference the documents listed below:
 
    (a) ProLogis' annual report on Form 10-K for the year ended December 31,
  1997 (as amended by Form 10-K/A filed April 30, 1998);
 
    (b) ProLogis' quarterly reports on Form 10-Q for the quarters ended March
  31, 1998, June 30, 1998 and September 30, 1998;
 
    (c) ProLogis' current reports on Form 8-K filed March 17, April 13, April
  28, April 30, November 18, December 4, and December 10, 1998;
 
    (d) The description of the ProLogis common shares and preferred share
  purchase rights contained or incorporated by reference in ProLogis'
  registration statement on Form 8-A filed February 23, 1994; and
 
    (e) The description of ProLogis' policies with respect to certain
  activities under the caption "ProLogis Policies With Respect to Certain
  Activities" on page 65 of ProLogis' Proxy Statement dated August 6, 1997
  and filed August 8, 1997 in connection with ProLogis' special meeting of
  shareholders on September 8, 1997.
 
  The Securities and Exchange Commission has assigned file number 1-12846 to
the reports and other information that ProLogis files with the Securities and
Exchange Commission.
 
                                       19
<PAGE>
 
 
  Meridian incorporates by reference the documents listed below:
 
    (a) Meridian's annual report on Form 10-K for the year ended December 31,
  1997;
 
    (b) Meridian's quarterly reports on Form 10-Q for the quarters ended
  March 31, 1998, June 30, 1998 and September 30, 1998;
 
    (c) Meridian's current reports on Form 8-K filed February 23, March 16,
  May 29, June 23, June 26, July 2 (as amended by Form 8-K/A filed July 8),
  August 25, September 10, November 10, November 18, December 7, and December
  11, 1998;
 
    (d) The description of Meridian's stock contained in Meridian's
  Registration Statement on Form 8-A filed on January 4, 1996 for
  registration of the common stock pursuant to Section 12(b) of the
  Securities Exchange Act of 1934, as amended, including any amendment or
  report filed for the purpose of updating such description; and
 
    (e) The description of Meridian's policies regarding certain activities
  under the caption "Policies with Respect to Certain Activities" on page 73
  in the prospectus dated November 19, 1996 included in Meridian's
  Registration Statement on Form S-11 (Securities and Exchange Commission
  Registration Number 333-16435).
 
  The Securities and Exchange Commission has assigned file number 1-14166 to
the reports and other information that Meridian files with the Securities and
Exchange Commission.
 
  You may request a copy of each of the above-listed ProLogis documents at no
cost, by writing or telephoning ProLogis at the following address, telephone
numbers or e-mail address, which will be sent by first class mail within one
business day of receipt of request:
 
      Investor Relations Department
      ProLogis Trust
      14100 East 35th Place
      Aurora, Colorado 80011
      (303) 375-9292
      (800) 820-0181
      www.prologis.com
 
  You may request a copy of each of the above-listed Meridian documents at no
cost, by writing or telephoning Meridian at the following address, telephone
numbers or e-mail address, which will be sent by first class mail within one
business day of receipt of request:
 
      Investor Relations Department
      Meridian Industrial Trust, Inc.
      455 Market Street, 17th Floor
      San Francisco, California 94105
      (415) 281-3900
      (800) 333-2243
      www.mit-reit.com
   
  All documents filed by each of ProLogis and Meridian pursuant to Sections
13(a), 13(c), 14 or 15(d) of the Securities Exchange Act of 1934, as amended,
after the date of this joint proxy statement and prospectus and prior to the
dates of the ProLogis special meeting and the Meridian special meeting shall be
deemed incorporated in and a part of this joint proxy statement and prospectus
from the date of filing of such documents.     
 
 
                                       20
<PAGE>
 
   
  Any statement contained in a document incorporated or deemed to be
incorporated herein shall be deemed modified or superseded for purposes of this
joint proxy statement and prospectus to the extent that a statement contained
herein or in any other subsequently filed document that is deemed to be
incorporated herein modifies or supersedes such statement. Any statement so
modified or superseded shall not be deemed, except as so modified or
superseded, to constitute a part of this joint proxy statement and prospectus.
       
  You should rely only on the information contained in this document or to
which we have referred you. We have not authorized anyone to provide you with
information that is inconsistent with information contained in this document or
any document incorporated herein. This joint proxy statement and prospectus is
not an offer to sell these securities in any state where the offer and sale of
these securities is not permitted. The information in this joint proxy
statement and prospectus is current as of the date it is mailed to security
holders, and not necessarily as of any later date. If any material change
occurs during the period that this joint proxy statement and prospectus is
required to be delivered, this joint proxy statement and prospectus will be
supplemented or amended.     
   
  All information regarding ProLogis in this joint proxy statement and
prospectus has been supplied by ProLogis, and all information regarding
Meridian in this joint proxy statement and prospectus has been supplied by
Meridian.     
 
                                       21
<PAGE>
 
                                  RISK FACTORS
   
  You should consider carefully the factors set forth below in evaluating the
merger. The following list summarizes all material risks related to the merger.
This joint proxy statement and prospectus contains forward-looking statements
with respect to the operations of ProLogis, Meridian and the combined company.
Actual results could differ materially from those set forth in the forward-
looking statements. See "Cautionary Statement Regarding Forward-Looking
Statements."     
   
Risk factors relating to the merger     
   
 Fixed merger consideration may not reflect changes in share value     
   
  The value of ProLogis common shares and preferred shares and Meridian common
stock and preferred stock at the effective time of the merger may be different
from the price and value of those securities on the date the merger
consideration was determined. In addition, the average trading price of
ProLogis common shares used to determine the amount of cash, if any, that
holders of Meridian common stock will be entitled to receive, if the average
trading price is below $22.725, will be calculated using 15 randomly selected
trading days during the 30 trading days ending five trading days before the
closing of the merger. The actual trading price of ProLogis common shares at
the effective time of the merger may differ, perhaps significantly, from the
average trading price calculated over this 30-day period. This difference could
be caused by changes in the operations and prospects of ProLogis or Meridian,
general market and economic conditions and other factors which are beyond the
control of either party.     
   
 The total value of the purchase price being paid by ProLogis may exceed the
 value of the assets being acquired in the merger     
   
  The value of the consideration being paid by ProLogis for the assets of
Meridian in the merger, based on the closing prices of the ProLogis common
shares and the value of the Meridian Series D preferred stock on January 29,
1999, is less than the value of the assets being acquired, as estimated by
ProLogis, by approximately $284,000.     
   
 The fairness opinions obtained by ProLogis and Meridian may not reflect
 changes in the relative value of the companies since the merger agreement was
 signed     
   
  ProLogis does not intend to obtain an updated fairness opinion of Merrill
Lynch & Co., and Meridian does not intend to obtain an updated fairness opinion
of Goldman, Sachs & Co. Changes in the operations and prospects of ProLogis or
Meridian, general market and economic conditions and other factors which are
beyond the control of ProLogis or Meridian, on which the opinions of Merrill
Lynch and Goldman Sachs are based, may have altered the relative value of the
companies. Therefore, the opinions of Merrill Lynch and Goldman Sachs will not
address the fairness of the merger consideration at the time the merger is
completed.     
          
 The expectation that the merger will result in an efficient integration of the
 companies and the achievement of cost savings may not occur     
   
  Meridian and ProLogis have entered into the merger agreement with the
expectation that the merger will result in certain benefits, including, without
limitation, cost savings, operating efficiencies, revenue enhancements and
other synergies. Achieving the anticipated benefits of the merger will depend
in part upon the integration of the businesses of Meridian and ProLogis in an
efficient manner, and there can be no assurance that this will occur. There can
be no assurance that the combined company will realize any of the anticipated
benefits of the merger. For a discussion of other factors and assumptions
related to the anticipated benefits of the merger, see "The Merger--Reasons for
the merger; Recommendation of the ProLogis board" and "The Merger--Reasons for
the merger; Recommendation of the Meridian board."     
       
                                       22
<PAGE>
 
   
 The companies have expended resources and capital in the pursuit of this
 merger, and if the merger fails to occur, the companies will not benefit from
 these expenses and may incur additional payments     
   
  The merger may not be completed. If the merger is not completed, ProLogis and
Meridian will have incurred substantial expenses for which no ultimate benefit
will have been received by either ProLogis or Meridian. Additionally, if the
merger agreement is terminated under certain circumstances, ProLogis may be
required to pay Meridian a $25 million termination fee or Meridian may be
required to pay ProLogis a $25 million termination fee, if Prudential Real
Estate enters into a voting agreement with ProLogis. If Prudential Real Estate
does not enter into such an agreement, the termination fee payable by Meridian
will be $40 million. See "The Merger Agreement--Termination fees."     
   
 Two stockholders of Meridian have the power to determine the outcome of the
 vote of Meridian stockholders     
   
  Prudential Real Estate beneficially owns approximately 27.0% of the
outstanding shares of Meridian common stock and Ameritech Pension Trust
beneficially owns approximately 26.6% of the outstanding Meridian common stock.
If each of Prudential Real Estate and Ameritech vote in favor of the merger
agreement, the merger agreement will be approved, notwithstanding the vote of
any other Meridian stockholder. Similarly, if each of Prudential Real Estate
and Ameritech vote against the merger agreement, the merger agreement will not
be approved and the merger will not close. We are not aware of any relationship
between Prudential Real Estate and Ameritech and we expect that they will each
make their voting decisions independently and will vote according to their own
respective best interests.     
          
 The directors, officers and stockholders of Meridian may have interests in the
 completion of the merger that are different from the interests of Meridian
 stockholders     
     
  .Each of the officers of Meridian, including Allen J. Anderson, Meridian's
   chairman and chief executive officer, Milton K. Reeder, Meridian's
   president and chief financial officer, and Dennis D. Higgs, executive vice
   president of Meridian, will be entitled to receive cash severance payments
   following consummation of the merger. The following table summarizes the
   maximum severance payments to which officers of Meridian would be
   entitled:     
 
<TABLE>   
<CAPTION>
                                                                     Amount of
           Name and Title                                             Payment
           --------------                                            ----------
      <S>                                                            <C>
      Allen J. Anderson............................................. $1,240,000
      Chairman and Chief Executive Officer
      Milton K. Reeder.............................................. $  900,000
      Chief Financial Officer
      Dennis D. Higgs............................................... $  860,000
      Executive Vice President
      Peter D. Harmon............................................... $  270,000
      Vice President
      Timothy B. Keith.............................................. $  240,000
      Vice President--Regional
      All officers as a group
       (8 persons).................................................. $4,104,250
</TABLE>    
     
  .The Meridian directors and officers, including Messrs. Anderson, Reeder
   and Higgs, and certain Meridian employees collectively own options to
   acquire a total of 2,022,371 shares of Meridian     
 
                                       23
<PAGE>
 
      
   common stock. 1,298,863 of these options were granted to such persons in
   1997 and 1998 at exercise prices ranging from $22 to $25.625 per share; in
   August 1998, the Meridian board approved a re-pricing of the exercise
   prices of these options to $21.125 per share, contingent upon a change in
   control of Meridian. All of Meridian's outstanding stock options,
   including the 130,020 options held by Meridian's independent directors,
   will be vested and fully exercisable upon the closing of the merger. The
   option repricing is summarized in the table below:     
 
<TABLE>   
<CAPTION>
                                                                                           Length of
                                    Number of                                              Original
                                    Securities    Market Price      Exercise              Option Term
                                    Underlying     of Stock at      Price at       New     Remaining
                                     Options         Time of         Time of    Exercise  at Date of
                Name               Repriced (#) Repricing ($) (1) Repricing ($) Price ($)  Repricing
                ----               ------------ ----------------- ------------- --------- -----------
    <S>                            <C>          <C>               <C>           <C>       <C>
    Allen J. Anderson............     70,000         21.125           22.00      21.125    8.5 years
    Chief Executive Officer          300,000         21.125          25.1875     21.125    9.5 years
    Brian R. Barringer...........     50,000         21.125          25.1875     21.125    9.5 years
    Vice President
    Robert A. Dobbin.............     10,000         21.125           22.00      21.125    8.5 years
    Secretary and General Counsel     25,000         21.125          25.1875     21.125    9.5 years
    Peter B. Harmon..............     15,000         21.125           22.00      21.125    8.5 years
    Vice President--Regional           2,500         21.125          23.125      21.125   8.75 years
    Director                          20,000         21.125          25.1875     21.125    9.5 years
    Dennis D. Higgs..............     45,000         21.125           22.00      21.125    8.5 years
    Executive Vice President and     210,000         21.125          25.1875     21.125    9.5 years
    Chief Investment Officer
    Timothy B. Keith.............     10,000         21.125           22.00      21.125    8.5 years
    Vice President--Regional          55,000         21.125          25.1875     21.125    9.5 years
    Director
    Milton K. Reeder.............     45,000         21.125           22.00      21.125    8.5 years
    President and Chief Financial    215,000         21.125          25.1875     21.125    9.5 years
    Officer
    Greg Skirving (2)............     11,351         21.125          25.1875     21.125    9.5 years
    Senior Vice President--
    National Marketing
    James Suarez.................     10,000         21.125           22.00      21.125    8.5 years
    Vice President--Finance           25,000         21.125          25.1875     21.125    9.5 years
</TABLE>    
   --------
      
   (1) Reflects the closing price of Meridian common stock on August 18,
       1998.     
      
   (2) Mr. Skirving is no longer an employee of Meridian.     
     
  .On August 18, 1998, in connection with the Meridian board of directors'
   analysis of Meridian's strategic alternatives, the Meridian board
   authorized grants of restricted common stock to Messrs. Anderson, Reeder
   and Higgs, Robert A. Dobbin, Meridian's general counsel, and Timothy B.
   Keith, a vice president and regional director of Meridian (110,000 shares,
   70,000 shares, 70,000 shares, 15,000 shares and 17,000 shares,
   respectively). These restricted stock grants will vest and the
   restrictions will lapse upon the closing of the merger. As a result, these
   persons will receive benefits in the merger that will not be shared by
   other stockholders of Meridian generally. See "The Merger--Interests of
   certain persons."     
 
  .Messrs. Anderson, Reeder and Higgs will also receive an aggregate of
   approximately $513,000 in cash from an entity in which ProLogis owns a
   substantial majority of the economic interest in exchange for
 
                                       24
<PAGE>
 
      
   the shares of common stock they hold in Meridian Refrigerated, Inc. (for
   which they paid an aggregate of approximately $455,000), an entity in
   which Meridian owns substantially all of the economic interest. As a
   result, these persons will receive benefits in the merger that will not be
   shared by other stockholders of Meridian generally. See "The Merger--
   Interests of certain persons."     
     
  . If the merger is completed, at the effective time of the merger, two of
    the current members of Meridian's board will be chosen by ProLogis to
    become trustees of ProLogis. These directors of Meridian will continue as
    trustees of ProLogis after the merger and will be granted options to
    acquire 2,000 common shares of ProLogis pursuant to the ProLogis Share
    Option Plan for Outside Trustees upon their appointment to the ProLogis
    board and will be compensated for their services as trustees and granted
    annual options during their tenure as trustees. While the two persons to
    serve as ProLogis trustees have not yet been selected by ProLogis, they
    will receive benefits that will not be shared by other stockholders of
    Meridian generally.     
   
 An affiliate of Prudential Real Estate is entitled to a fee if the merger is
completed     
   
Prudential Securities Incorporated, an affiliate of Prudential Real Estate,
Meridian's largest stockholder, will be entitled to receive a $1 million fee
in connection with its services as financial advisor to Meridian in connection
with the merger. The financial advisory services provided by Prudential
Securities to Meridian included advising Meridian's directors and senior
management regarding the structuring and negotiation of the solicitation of
expressions of interest from potential acquirors and the use of pricing
mechanisms such as fixed exchange ratios, fixed price-floating exchange
ratios, and collars and termination rights in a stock for stock merger and the
possible effects of such mechanisms on the stock prices for the participants.
In addition, representatives of Prudential Securities continue to be available
to Meridian's board of directors to provide such assistance as may be
requested by the board. As a result of the fee payable to Prudential
Securities, Prudential Real Estate may be deemed to have interests in the
merger that are different from those of other Meridian stockholders.     
   
 Rights of ProLogis shareholders differ from those of Meridian     
   
  The rights of stockholders of Meridian currently are governed by Maryland
law applicable to corporations and Meridian's charter and bylaws. Upon
completion of the merger, stockholders of Meridian will become shareholders of
ProLogis and their rights will be governed by Maryland law applicable to real
estate investment trusts and ProLogis' declaration of trust and bylaws. The
rights of stockholders of Meridian may differ materially from the rights of
shareholders of ProLogis and, therefore, the rights of the former Meridian
stockholders in ProLogis may be less favorable than their former rights as
stockholders of Meridian. One of these differences, the staggered board of
trustees of ProLogis, may have the effect of making it difficult for a third
party to acquire control of ProLogis without the consent of the board of
trustees. See "Comparison of Shareholder Rights."     
   
Risk factors relating to ownership of ProLogis common shares and preferred
shares     
   
 Significant influence of ProLogis' principal shareholder may impact ProLogis
 management and operations     
   
  Security Capital Group Incorporated owns approximately 40.3% of the issued
and outstanding common shares of ProLogis and is expected to own approximately
30.9% upon completion of the merger. Through its ownership of common shares,
Security Capital controls approximately 40.3% of the vote on matters submitted
for shareholder action, including the election of trustees. Other than
shareholders who acquired shares prior to ProLogis' initial public offering
who are permitted to hold up to 30% of the shares of ProLogis, no other
shareholder may hold more than 9.8% of the outstanding shares of ProLogis. See
"Description of ProLogis Securities--Common shares--Restrictions on size of
holdings." For so long as Security Capital owns at least 10% of ProLogis'
outstanding common shares, Security Capital has a right to nominate up to
three trustees, depending on its level of ownership of shares. The trustees so
elected are in a position to exercise significant     
 
                                      25
<PAGE>
 
influence over the affairs of ProLogis if they were to act together in the
future. Additionally, for so long as Security Capital owns at least 10% of
ProLogis' outstanding common shares, Security Capital has the right to approve
      
   (1)ProLogis' annual operating budget and substantial deviations therefrom,
           
   (2) acquisitions or dispositions in a single transaction or group of
       related transactions where the purchase price exceeds $5 million,     
      
   (3) property management arrangements and     
      
   (4) the increase of the number of trustees to more than 10.     
   
  Accordingly, due to the foregoing, for so long as it continues to own at
least 10% of ProLogis' outstanding common shares, Security Capital will retain
significant influence over the affairs of ProLogis which may result in
decisions that do not fully represent the interests of all shareholders of
ProLogis.     
   
 The merger will increase the geographic concentration of ProLogis in several
 markets, increasing ProLogis' exposure to the general economic conditions of
 these markets     
 
  ProLogis' operating performance depends on the economic conditions of markets
in which its facilities are concentrated. The merger will increase the
concentration of ProLogis in a number of markets, principally the Chicago,
Dallas, Los Angeles and Columbus markets. ProLogis' operating performance could
be adversely affected if conditions, such as an oversupply of space or a
reduction in demand for industrial distribution facilities, in ProLogis' larger
markets become less favorable relative to other geographic areas. Any material
oversupply of space or material reduction of demand for space could adversely
effect ProLogis' operating income and the value of ProLogis shares.
   
 ProLogis' real estate investments are subject to risks particular to real
 estate investments     
   
  Value of Real Estate Dependent on Numerous Factors     
   
  Real property investments are subject to varying degrees of risk. Real estate
values are affected by a number of factors, including:     
 
   1.changes in the general economic climate;
 
2.local conditions (such as an oversupply of space or a reduction in demand for
        real estate in an area);
 
3.the quality and philosophy of management;
 
4.competition from other available space;
 
5.the ability of the owner to provide adequate maintenance and insurance;
 
6.the ability of the owner to control variable operating costs;
 
7.government regulations;
 
8.interest rate levels;
 
9.the availability of financing; and
 
10. potential liability under, and changes in, environmental, zoning, tax and
other laws.
   
  Restrictions on, and risks of, unsuccessful development activities     
   
  ProLogis intends to continue to pursue development activities as
opportunities arise. Such development activities generally require various
government and other approvals. ProLogis may not receive such approvals.
ProLogis will be subject to risks associated with any such development
activities. These risks include:     
 
1.the risk that development opportunities explored by ProLogis may be
        abandoned;
 
                                       26
<PAGE>
 
2.the risk that construction costs of a project may exceed original estimates,
        possibly making the project less profitable than originally estimated;
 
3.limited cash flow during the construction period; and
 
4.the risk that occupancy rates and rents of a completed project will not be
        sufficient to make the project profitable.
 
In case of an unsuccessful development project, ProLogis' loss could exceed its
investment in the project.
   
  Tenant Default     
   
  ProLogis' income and distributable cash flow would be adversely affected if a
significant number of ProLogis' tenants is unable to meet their obligations to
ProLogis, or if ProLogis is unable to lease, on economically favorable terms, a
significant amount of space in its industrial distribution facilities. In the
event of default by a significant number of tenants, ProLogis may experience
delays and incur substantial costs in enforcing its rights as landlord.     
   
  Illiquidity of Real Estate Investments     
   
  Equity real estate investments are relatively illiquid and therefore may tend
to limit the ability of ProLogis to react promptly to changes in economic or
other conditions. In addition, certain significant expenditures associated with
equity real estate investments, such as mortgage payments, real estate taxes
and maintenance costs, are generally not reduced when circumstances cause a
reduction in income from the investments. Like other companies qualifying as
real estate investment trusts under the Internal Revenue Code ("REITs"),
ProLogis must comply with certain safe harbor rules, relating to the number of
properties sold in a year, their tax bases and the cost of improvements made
thereto, or meet other tests which enable a REIT to avoid punitive taxation on
the sale of assets. Thus, ProLogis' ability to sell assets at any time to
change its asset base may be restricted.     
   
 Share prices may be effected by market interest rates     
 
  The annual distribution rate on the ProLogis common shares as a percentage of
its market price may influence the trading price of such common shares. An
increase in market interest rates may lead investors to demand a higher annual
distribution rate, which could adversely affect the market price of such common
shares. A decrease in the market price of the ProLogis common shares could
reduce ProLogis' ability to raise additional equity capital in the public
markets.
   
 Uninsured losses may adversely affect ProLogis     
   
  Certain types of losses, such as from hurricanes or acts of war, may be
uninsurable, or the cost of insuring against such losses may not be
economically justifiable. If an uninsured loss occurs, ProLogis could lose both
the invested capital in and anticipated revenues from the affected facility,
but would still be obligated to repay any recourse mortgage indebtedness on the
facility.     
   
 Potential environmental liability     
   
  Under various federal, state and local laws, ordinances and regulations, a
current or previous owner, developer or operator of real estate may be liable
for the costs of removal or remediation of hazardous or toxic substances at,
on, under or in its property. The costs of removal or remediation of such
substances could be substantial. Such laws often impose liability without
regard to whether the owner or operator knew of, or was responsible for, the
release or presence of such hazardous substances. The presence of such
substances on ProLogis' properties may adversely affect its ability to sell
such properties or to borrow using such properties as collateral and may also
have an adverse affect on ProLogis' ability to pay distributions to its
shareholders.     
 
                                       27
<PAGE>
 
   
 Debt financing, increases in interest rates, financial covenants and absence
 of limitations on debt may result in decreased distributions to shareholders
        
  Debt financing     
 
  ProLogis is subject to risks normally associated with debt financing,
including the risk that ProLogis' cash flow will be insufficient to meet
required payments of principal and interest and the risk that ProLogis will not
be able to refinance existing indebtedness or that the terms of such
refinancings will not be as favorable as the terms of the existing
indebtedness. There can be no assurance that ProLogis will be able to refinance
any indebtedness or otherwise obtain funds by selling assets or raising equity
to make required payments on maturing indebtedness.
   
  Requirements of credit facilities; foreclosures     
   
  The terms of ProLogis' indebtedness require ProLogis to comply with a number
of customary financial and other covenants, such as maintaining debt service
coverage and leverage ratios, maintaining insurance coverage, etc. These
covenants may limit ProLogis' flexibility in its operations, and breaches of
these covenants could result in defaults under the instruments governing the
applicable indebtedness even if ProLogis has satisfied its payment obligations.
If ProLogis is unable to refinance its indebtedness at maturity or meet its
payment obligations, the amount of cash available for distribution may be
adversely affected.     
   
  Risk of rising interest rates     
 
  ProLogis may incur indebtedness in the future that bears interest at a
variable rate or may be required to refinance its debt at higher interest
rates. Increases in interest rates could increase ProLogis' interest expense,
which could adversely affect ProLogis' ability to pay expected distributions to
shareholders.
   
  No limitation on debt     
 
  ProLogis currently has a policy of incurring debt only if, upon such
incurrence, ProLogis' debt-to-book capitalization ratio, as adjusted, would
equal 50% or less. The ProLogis board of trustees could alter or eliminate this
policy without shareholder approval and would do so if, for example, it were
necessary in order for ProLogis to continue to qualify as a REIT. If this
policy were changed, ProLogis could become more highly leveraged, resulting in
an increase in debt service that could adversely affect the cash available for
distribution to shareholders.
   
 Costs of compliance with laws may reduce cash flow available for distribution
        
  ProLogis' facilities are subject to various federal, state and local
regulatory requirements, such as state and local fire and life safety
requirements. Failure to comply with these requirements could result in the
imposition of fines by governmental authorities or awards of damages to private
litigants. There can be no assurance that these requirements will not be
changed or that new requirements will not be imposed, a result that could
require significant unanticipated expenditures by ProLogis and could have an
adverse effect on ProLogis' cash flow.     
   
 Failure to qualify as a REIT could adversely affect shareholders     
   
  ProLogis has elected to be taxed as a REIT under the Internal Revenue Code of
1986, as amended, commencing with its taxable year ended December 31, 1993. To
maintain REIT status, ProLogis must meet a number of highly technical
requirements on a continuing basis. Those requirements seek to ensure, among
other things, that the gross income and investments of a REIT are largely real
estate related, that a REIT distributes substantially all its ordinary taxable
income to shareholders on a current basis and that the REIT's ownership is not
overly concentrated. Due to the complex nature of these rules, the limited
available guidance     
 
                                       28
<PAGE>
 
concerning interpretation of the rules, the importance of ongoing factual
determinations and the possibility of adverse changes in the law,
administrative interpretations of the law and developments at ProLogis, no
assurance can be given that ProLogis will qualify as a REIT for any particular
year.
 
  If ProLogis fails to qualify as a REIT, it will be taxed as a regular
corporation, and distributions to shareholders will not be deductible in
computing ProLogis' taxable income. The resulting corporate tax liabilities
could materially reduce the funds available for distribution to ProLogis'
shareholders or for reinvestment. In the absence of REIT status, distributions
to shareholders would no longer be required. Moreover, ProLogis might not be
able to elect to be treated as a REIT for the four taxable years after the year
          
during which ProLogis ceased to qualify as a REIT. In addition, if ProLogis
later requalified as a REIT, it might be required to pay a full corporate-level
tax on any unrealized gain in its assets as of the date of requalification and
to make distributions to shareholders equal to any earnings accumulated during
the period of non-REIT status.     
   
 Potential adverse effect of REIT distribution requirements     
   
  To maintain its qualification as a REIT under the Internal Revenue Code of
1986, ProLogis must annually distribute to ProLogis' shareholders at least 95%
of its ordinary taxable income, excluding net capital gains. This requirement
limits ProLogis' ability to accumulate capital. Under certain circumstances,
ProLogis may not have sufficient cash or other liquid assets to meet the
distribution requirements. Difficulties in meeting the distribution
requirements might arise due to competing demands for ProLogis' funds or to
timing differences between tax reporting and cash receipts and disbursements
(because income may have to be reported before cash is received, because
expenses may have to be paid before a deduction is allowed or deductions may be
disallowed or limited). In those situations, ProLogis might be required to
borrow funds or sell facilities on adverse terms in order to meet the
distribution requirements. If ProLogis fails to make a required distribution,
it would cease to be a REIT.     
 
                                 THE COMPANIES
 
ProLogis
   
  ProLogis is a real estate investment trust organized under Maryland law and
has elected to be taxed as a REIT under the Internal Revenue Code of 1986.
ProLogis is an owner/manager of industrial distribution facilities with nearly
1,300 operating facilities throughout North America and Europe, making it the
largest publicly held U.S.-based company to do so. ProLogis is an international
operating company focused exclusively on meeting the distribution space needs
of international, national, regional and local industrial real estate users
through the ProLogis Operating System(TM). ProLogis distinguishes itself from
its competition by being the only entity that combines all of the following:
       
  1. An international operating strategy dedicated to providing distribution
     facilities to a targeted customer base of the 1,000 largest users of
     distribution facilities worldwide;     
 
  2. An organizational structure and service delivery system built around the
     customer--ProLogis believes its service approach is unique to the real
     estate industry as it combines international scope and expertise with
     strong local presence in each of its target markets; and
 
  3. A disciplined investment strategy based on proprietary research that
     identifies high growth markets with sustainable demand for ProLogis'
     distribution facilities.
   
  As of December 31, 1998, ProLogis, including its unconsolidated subsidiaries,
had 134.7 million square feet of industrial distribution facilities, which
includes 126.1 million square feet of operating facilities. In addition,
ProLogis had 8.6 million square feet under development at a total expected
investment of $391.9 million in 90 North American and European markets. Also,
as of December 31, 1998, ProLogis, including its unconsolidated subsidiaries,
owned or controlled 4,678 acres of land for the future development of
approximately 81.6 million square feet of distribution facilities.     
 
                                       29
<PAGE>
 
          
  On December 29, 1998, ProLogis acquired 100% of the preferred stock,
representing 95% of the equity interest, of Garonor Holdings S.A., a Luxembourg
based holding company. Also on December 29, 1998, Garonor Holdings S.A.
acquired approximately 99.6% of the voting stock of Garonor S.A. for
approximately $317 million. Garonor S.A. owns 5.25 million square feet of
industrial distribution facilities located in France. Garonor Holdings S.A. is
in the process of acquiring the remaining voting stock of Garonor S.A. The
transaction was funded with approximately $200 million of secured financing
from a group of European banks, borrowings on ProLogis' unsecured line of
credit and proceeds from a secured debt financing arrangement that was
completed by ProLogis in December 1998.     
   
  The cornerstone of ProLogis' operating strategy is the ProLogis Operating
System(TM) that utilizes ProLogis' international network of corporate
distribution facilities to fully meet its customers' distribution needs on a
global basis.     
 
  ProLogis engages in the acquisition, development, marketing, operation and
long-term ownership of distribution facilities. ProLogis has the resources to
provide a full array of financial, development and operating services,
including: (i) expertise in market research, (ii) building and land acquisition
and due diligence, (iii) master-planned distribution park design and building
construction and (iv) marketing, asset and leasing management.
 
  ProLogis deploys capital in markets with excellent long-term growth prospects
and in markets where it can achieve a strong position through the acquisition
and development of flexible facilities for warehousing, distribution and light
manufacturing uses. ProLogis expanded its operations into Mexico and Europe in
1997 to meet the needs of its targeted national and international customers as
they expand and reconfigure their distribution facility requirements globally.
 
Meridian
   
  Meridian is a corporation organized under Maryland law and has elected to be
taxed as a REIT under the Internal Revenue Code of 1986. Meridian engages
primarily in the business of owning, acquiring, developing, managing and
leasing income-producing warehouse/distribution and light industrial
properties. At December 31, 1998, Meridian, including its unconsolidated
subsidiaries and joint ventures, owned and operated 235 warehouse/distribution
and light industrial properties encompassing approximately 31.5 million square
feet. Meridian had 2.0 million square feet of warehouse/distribution properties
under development at a total expected investment of $72.1 million as of
December 31, 1998. In addition, Meridian owned or controlled 423 acres of land
for the future development of an additional approximately 6.4 million square
feet of warehouse distribution facilities. Meridian's properties are located in
significant industrial centers and distribution hubs throughout the United
States, including Atlanta, Chicago, Columbus, Dallas, Detroit, Houston, the Los
Angeles Basin, Memphis, the New Jersey/Pennsylvania I-95 Corridor, Phoenix, the
San Francisco Bay Area and Seattle.     
   
The combined company     
   
  Upon completion of the merger, ProLogis is expected to have a total market
capitalization of approximately $6.6 billion, based on the closing price of
ProLogis shares on January 29, 1999 and the outstanding principal amount of
indebtedness of the two companies on such date. The combined company will own
more than 1,500 distribution facilities, based on the real estate assets held
by ProLogis and Meridian as of December 31, 1998. The combined real estate
assets, including assets held by unconsolidated subsidiaries and joint
ventures, will consist of approximately 157.6 million square feet of operating
distribution facilities. Also, the combined company will have 10.6 million
square feet of distribution facilities under development at a total expected
investment of $464.0 million in 94 North American and European markets.
Additionally, the combined company will own or control approximately 5,100
acres of land for the future development of approximately 88.0 million square
feet of distribution facilities. The combined company will continue to be taxed
as a REIT under the Internal Revenue Code of 1986.     
 
                                       30
<PAGE>
 
  The combined company resulting from the merger is expected to have the
following important characteristics, which are intended to create long-term
shareholder value:
     
    (1) the largest publicly traded industrial real estate investment trust
  with approximately 168.2 million square feet of distribution facilities
  located in 94 target markets in the United States, Mexico and Europe;     
     
    (2) a customer base of over 3,100 including 414 who are among ProLogis'
  targeted 1000 largest users of distribution space;     
 
    (3) significant operational and property-level cost savings as the result
  of integrating Meridian's assets into ProLogis' established operating
  systems; and
 
    (4) larger capitalization which is expected to lead to more favorable
  access to debt and equity capital markets.
 
                                   THE MERGER
   
Terms of the merger     
 
  The ProLogis board of trustees and the Meridian board of directors have each
approved the merger and the merger agreement, a copy of which is attached
hereto as Annex A and incorporated herein by reference. Pursuant to the merger
agreement, among other things, upon the satisfaction, or waiver, of the
conditions set forth therein, at the effective time of the merger:
 
  . Meridian will be merged with and into ProLogis, with ProLogis being the
    surviving entity,
 
  . each issued and outstanding share of Meridian common stock will be
    converted into the right to receive 1.10 ProLogis common shares and the
    corresponding number of rights to purchase 0.01 of ProLogis Series A
    junior participating preferred shares,
     
  . if the Average Trading Price (defined below) of ProLogis common shares is
    less than $22.725, an additional amount in cash, not to exceed $2.00 per
    share, will also be given in exchange for each share of Meridian common
    stock, and     
 
  . each issued and outstanding share of Meridian Series D cumulative
    redeemable preferred stock will be converted into the right to receive
    one share of a corresponding series of ProLogis preferred shares having
    substantially identical rights and preferences.
   
  The Average Trading Price of ProLogis common shares will be based upon the
daily high and low per share transaction prices for ProLogis common shares for
15 trading days randomly selected by Arthur Andersen LLP from the 30
consecutive trading days ending on, and including, the fifth trading day prior
to the closing of the merger (the "Average Trading Price"). The amount of cash,
if any, received by holders of Meridian common stock will be equal to the
amount by which $25.00 exceeds the product of the Average Trading Price
multiplied by 1.10, not to exceed $2.00 per share.     
   
  As a result of the merger and without any action on the part of the holder
thereof, at the effective time of the merger, each share of Meridian common
stock and preferred stock will cease to be outstanding, will be canceled and
retired and will cease to exist. Each holder of a certificate representing
Meridian common stock or Meridian preferred stock will thereafter cease to have
any rights with respect to such shares, except the right to receive the
ProLogis common shares, including the associated preferred share purchase
rights, and any cash consideration or ProLogis Series E preferred shares, as
applicable, upon the surrender of such certificate. Promptly after the
effective time of the merger, ProLogis will deposit with an exchange agent, a
bank or trust company, certificates representing the ProLogis shares to be
issued in the merger. The exchange agent will mail a letter of transmittal and
instructions to each holder of a certificate representing Meridian shares, as
of the effective time, for use in effecting the surrender of their Meridian
stock certificates in exchange for certificates representing ProLogis shares.
See "The Merger Agreement--Exchange of certificates."     
 
                                       31
<PAGE>
 
   
Background of the merger     
 
  Since its formation, Meridian's fundamental business objective has been to
maximize total return to its stockholders by increasing cash flow per share and
increasing the long-term value of Meridian's properties. A key strategy in
achieving that objective has been to acquire and develop new industrial
properties while maximizing cash flow from Meridian's existing properties.
Beginning in early 1998, market prices for publicly traded REITs began a
significant decline. As a result of this decline and recent volatility in the
credit markets, Meridian and many other REITs have been limited in their
ability to raise additional equity capital and to issue long-term debt to fund
further growth. In this environment and because Meridian management believes
that the REIT industry will continue to consolidate, Meridian's management
began to explore the potential for a strategic business combination with
another large REIT as a means of competing effectively and enhancing
stockholder value.
 
  Throughout 1998, ProLogis, through its strategic acquisitions committee, had
been considering ways in which to increase its market presence in key logistics
and other target markets in a capital constrained environment. ProLogis began
to focus on potential merger and acquisition candidates within the industrial
REIT sector as it grew increasingly evident that consolidation was likely to
continue in the REIT sector generally and was likely to begin in the industrial
sector specifically. Following a review of potential acquisition candidates,
ProLogis focused primarily on Meridian due to its business plan, asset base and
sole focus on industrial facilities.
 
  Allen Anderson, Meridian's chairman and chief executive officer initiated
discussions with several REITs during the summer of 1998 regarding possible
strategic combinations. In addition to meetings with other companies, between
June 3, 1998 and August 10, 1998, Mr. Anderson had several telephone
conversations and face to face meetings with Irving F. Lyons III, ProLogis' co-
chairman and chief investment officer, and certain other ProLogis
representatives. In these meetings. Mr. Anderson and Mr. Lyons discussed the
industrial real estate market generally, the operations of the two companies
and the possible benefits of a strategic combination. None of the discussions
with ProLogis or any of the other companies resulted in a proposal that was
acceptable to Meridian.
   
  At a telephone meeting of Meridian's board of directors on August 18, 1998,
Meridian engaged Goldman, Sachs & Co. as its financial advisor to review the
company's strategic alternatives. Meridian's board retained Goldman Sachs
because of its substantial experience in transactions similar to the merger,
its familiarity with Meridian and the other factors described below under "--
Opinion of Meridian's financial advisor." Goldman Sachs has in the past acted
on behalf of ProLogis and Security Capital and their respective affiliates as
described below under "--Opinion of Meridian's financial advisor."     
 
  At a meeting of Meridian's board of directors in Dallas on September 18,
1998, representatives of Goldman Sachs made a presentation to the Meridian
board regarding various strategic alternatives. This presentation focused on
four primary alternatives:
     
    (1) maintaining Meridian's existing growth and operating strategy,     
     
    (2) embarking on a new strategy relying on a high degree of leverage,
  primarily through mortgaging Meridian's existing properties,     
     
    (3) pursuing a "merger of equals" business combination, or     
     
    (4) pursuing a "change of control" business combination which could take
  the form of an acquisition by a financial buyer or a merger with another
  REIT. During this meeting, the Meridian board of directors and its legal
  and financial advisors discussed the challenges and opportunities presented
  by each of the proposed alternatives.     
 
  On the basis of the board's discussion and the Goldman Sachs presentation,
Meridian's board of directors asked Goldman Sachs to explore Meridian's value
in a "change of control" transaction by circulating an
 
                                       32
<PAGE>
 
offering memorandum to a limited number of qualified parties and seeking non-
binding expressions of interest from those parties. On September 28, 1998,
Meridian engaged Goldman Sachs as its financial advisor to pursue a strategic
business combination. On October 6, 1998, Goldman Sachs distributed offering
memoranda to eight parties, including ProLogis.
 
  In addition to pursuing a "change of control" transaction, at the Meridian
board's direction, Mr. Anderson resumed the discussions that started in March
1998 with another REIT ("Company A") regarding a "merger of equals"
transaction. Mr. Anderson met with representatives of Company A on September 9,
September 24 and September 29, 1998 to discuss the companies' respective
business plans, potential competitive advantages of the combined entity,
management and social issues regarding a potential combination and the
possibility of including a third company in the transaction. During this
period, confidentiality letters were exchanged and Meridian and Company A
shared certain non-public financial and operating information. Finally, on
October 7, 1998, Company A's financial advisor made a presentation to
representatives of Meridian and Company A regarding the proposed transaction.
Based upon the indicated value of Meridian shares in a merger with Company A
and the responses to Goldman Sachs' solicitations of interest discussed below,
these discussions were abandoned without any further meetings.
   
  On October 15, 1998, ProLogis engaged Merrill Lynch & Co. to act as its
financial advisor in connection with its evaluation of the potential
acquisition of Meridian. ProLogis' board retained Merrill Lynch because of its
substantial experience in transactions similar to the merger, its familiarity
with ProLogis and the other factors described below under "--Opinion of
ProLogis' financial advisor." Merrill Lynch, in conjunction with ProLogis'
internal due diligence personnel, prepared a comprehensive overview of
Meridian, preliminary valuations of Meridian based on public comparables and
cash flow analyses and a preliminary analysis of pro forma merger consequences.
Merrill Lynch also analyzed the potential transaction from the perspective of
ProLogis' significant competitors.     
   
  Meridian's board of directors decided to retain Prudential Securities
Incorporated as a financial advisor on October 16, 1998 and entered into an
engagement letter with Prudential Securities on October 29, 1998. Meridian's
board retained Prudential Securities based on its long standing relationship
with Meridian and its reputation as a nationally recognized investment banking
firm with experience advising clients in transactions similar to the merger and
because of its familiarity with Meridian. Prudential Securities was the lead
underwriter on Meridian's two public stock offerings in 1996 and was a co-lead
manager on Meridian's public offering of preferred stock in June 1998.
Prudential Securities has also advised Meridian's board of directors from time
to time regarding other matters, including Meridian's acquisition of a
substantial real estate portfolio from Ameritech in September 1997, for which
it received normal and customary compensation.     
   
  On October 22, 1998, Goldman Sachs received three formal expressions of
interest. ProLogis offered to acquire Meridian in a stock-for-stock merger in
which Meridian's common stockholders would receive ProLogis common shares
having a value of $25.00. This amount was determined by ProLogis after
consideration of the advice of Merrill Lynch. ProLogis' proposal was subject to
the negotiation of definitive documentation, satisfactory completion of its due
diligence review of Meridian and the approval of ProLogis' board of trustees.
    
  Two other parties, "Company B," a joint venture between a publicly traded
REIT and a financial investor, and "Company C," another publicly traded REIT
that owns primarily industrial properties, also submitted expressions of
interest. Company B offered to acquire Meridian in an all-cash transaction in
which Meridian's common stockholders would receive $26.00 per share. This offer
was subject to the approval of the joint venture's financial partner and
several contingencies that are more customary in a property or portfolio
acquisition than in the acquisition of a public company. Company C offered to
acquire Meridian in a merger in which Meridian's common stockholders would
receive a combination of cash and Company C common stock having a value of
between $25.00 and $27.00 per share. Company C's offer was subject to the
negotiation of definitive documentation and satisfactory completion of its due
diligence. Two other parties expressed an
 
                                       33
<PAGE>
 
   
interest in portions of Meridian's portfolio but did not make offers for all or
a substantial portion of the company. None of ProLogis' or Meridian's financial
advisors represented any of the other bidders for Meridian.     
 
  On October 26, 1998, Meridian's board of directors held a meeting in Dallas
at which representatives of Goldman Sachs made a presentation regarding the
three expressions of interest. Meridian's directors, management and
representatives of Goldman Sachs also discussed the net asset value of
Meridian's portfolio based on a range of capitalization rates. Finally,
Meridian's board and its advisors discussed a variety of mechanisms for
protecting Meridian's stockholders from a deterioration in an acquiror's stock
price.
          
  A data room of Meridian due diligence material was established at the Dallas
office of Vinson & Elkins L.L.P., Meridian's counsel. ProLogis and Company C
and their respective representatives each visited the data room during the week
of October 26. On October 29, copies of a form of merger agreement were sent to
ProLogis, Company B and Company C. On October 30, Company B withdrew its
proposal before the Meridian board convened to consider the proposal. On
November 3, members of ProLogis management visited Meridian's offices in San
Francisco, California, during which Meridian management presented an overview
of Meridian, its business and its active transactions. During the meeting the
parties discussed matters which had arisen during the course of ProLogis' due
diligence review. On November 10, members of Meridian management visited
Company C's offices for a presentation regarding Company C's operating
strategy, its long-term business plan, financial statements and real estate
portfolio, including interviews with key management personnel. On November 9,
members of Meridian management visited ProLogis' offices in Aurora, Colorado,
during which ProLogis management presented an overview of ProLogis, its
business and its active transactions. During the meeting, the parties also
discussed the status of ProLogis' due diligence review and issues that had
arisen. From November 9 through 11, members of ProLogis' management team met
with their financial and legal advisors, reviewed and commented on the proposed
merger agreement and finalized the offer to Meridian.     
   
  On November 12, Meridian received final offers from ProLogis and Company C.
Mr. Lyons and Walter Rakowich, a managing director of ProLogis, presented the
ProLogis bid in person to Mr. Anderson and Meridian's financial and legal
advisors at Goldman Sachs' office in San Francisco. ProLogis' offer was to
acquire Meridian in a merger in which each share of Meridian common stock would
be entitled to receive consideration having a value of $24.50. In their final
proposal, Company C offered to acquire Meridian in a stock-for-stock merger in
which Meridian's common stockholders would receive Company C common stock
having a value, based upon the then current price of Company C stock, that was
less than the $24.50 value to be received in the ProLogis proposal. Company C's
offer also did not include any protection against a decline in Company C's
trading price.     
 
  On November 13, Meridian's board of directors met in San Francisco to
consider the two proposals. At the conclusion of an approximately six hour
meeting, the Meridian board of directors approved the ProLogis proposal and the
principal terms of the merger as set out in the comments to the draft merger
agreement that ProLogis and its legal advisors provided to Meridian and its
legal advisors. During the course of this meeting at the board's direction, Mr.
Anderson made several telephone calls to Mr. Lyons regarding various components
of the ProLogis proposal, including Meridian's and ProLogis' ability to obtain
voting agreements from their respective major stockholders, the amount and
structure of the cash component of the consideration to be received by
Meridian's stockholders and the number of Meridian directors who would continue
as trustees of the combined company.
 
  As a result of these conversations, ProLogis revised its offer to provide for
a merger in which each share of Meridian stock would be converted into the
right to receive consideration having a value of $25.00, consisting of 1.10
ProLogis common shares and up to $2.00 in cash if an average price of a
ProLogis common share prior to the closing of the merger was less than $22.725
and Meridian requested that Security Capital agree to vote its ProLogis common
shares in favor of the merger. Similarly, ProLogis requested that Prudential
 
                                       34
<PAGE>
 
   
Real Estate agree to vote its shares of Meridian common stock in favor of the
merger, and in the absence of such an agreement, that the termination fee be
higher. Meridian agreed to use its reasonable best efforts to obtain a voting
agreement from Prudential Real Estate.     
   
  At the conclusion of the Meridian board meeting the principal terms of the
merger having been agreed to by their respective boards, the management and
representatives of Meridian and ProLogis agreed to negotiate and execute the
definitive agreements. In a series of conference calls from November 14th
through November 16th, senior management of both companies and their respective
financial and legal advisors negotiated the terms of the definitive merger
agreement, the voting agreement and the Meridian Refrigerated stock purchase
agreement. See "The Merger Agreement" and "--Voting agreements."     
   
  On November 16, Meridian's board of directors held a telephone meeting to
approve the merger agreement and the merger. Representatives of Goldman Sachs
delivered their opinion to the Meridian board that as of such date, and based
upon and subject to the various qualifications and assumptions described
therein, the consideration to be received by the holders of Meridian common
stock in the merger was fair from a financial point of view to the holders of
Meridian common stock. The directors discussed ProLogis' request that
Prudential Real Estate enter into a voting agreement and agree to vote in favor
of the merger. Meridian's board of directors was concerned about the request
for a Prudential Real Estate voting agreement for two reasons. First, they
realized that Prudential Real Estate was acting in a fiduciary capacity with
respect to shares of Meridian common stock that it managed on behalf of several
separate accounts, and therefore might be unwilling to agree to vote in favor
of the merger before the Meridian stockholders meeting. Second, if Prudential
Real Estate agreed to vote in favor of the merger, the Meridian board was
concerned that it would be difficult for the remaining stockholders to vote
down the merger if a holder of approximately 27.0% was committed to vote in
favor of the merger. For these reasons, the Meridian board of directors
proposed that the merger agreement provide that Meridian agree to pay a higher
termination fee if Prudential Real Estate did not enter into a voting agreement
and not provide that the execution of a voting agreement with Prudential Real
Estate would be a condition to ProLogis' obligation to complete the merger.
       
  Meridian's board of directors reviewed and discussed the information
presented by management and Meridian's legal advisors, together with the
opinion presented by Goldman Sachs. At the conclusion of this discussion,
Meridian's board of directors unanimously approved the merger and the merger
agreement.     
 
  On November 16, 1998, a special telephonic meeting of the ProLogis board was
convened to consider the merger and the merger agreement. At this meeting,
Merrill Lynch delivered its oral opinion that, as of such date, the
consideration to be paid by ProLogis in the merger was fair, from a financial
point of view, to ProLogis and the shareholders of ProLogis. After a review of
the information presented by management and a review of the terms of the merger
and merger agreement, the ProLogis board approved the merger and merger
agreement and resolved to recommend the merger to ProLogis' shareholders.
   
  In early December 1998, ProLogis and Meridian and their respective legal
advisors discussed several proposed amendments to the merger agreement. These
amendments, which were technical in nature, were finalized and approved by the
ProLogis board and the Meridian board on February 3, 1999.     
   
Reasons for the merger; Recommendations of the ProLogis board     
   
  Prologis' board of trustees has determined that the terms of the merger and
the merger agreement and the transactions contemplated thereby are advisable
and in the best interests of Prologis and its shareholders and recommends that
Prologis shareholders vote for the approval of the merger.     
   
 Positive factors considered by the ProLogis board     
 
  In making its determination with respect to the merger, the ProLogis board
considered the following material positive factors:
 
    (1) The merger will combine the assets of Meridian and ProLogis,
  strengthening the largest industrial REIT in the nation, which is focused
  on owning, managing, acquiring and developing distribution facilities
 
                                       35
<PAGE>
 
     
  in ProLogis' target logistics markets throughout the United States, Mexico
  and Europe. ProLogis is expected to have a pro forma total market
  capitalization of approximately $6.6 billion, based on the closing price of
  ProLogis shares on January 29, 1999 and the outstanding principal amount of
  indebtedness of the two companies on such date.     
     
    (2) The board of trustees believes that the merger will result in a
  strong balance sheet for ProLogis. The post-merger pro forma ratio of total
  long-term debt to total long-term undepreciated book capitalization ratio
  is approximately 28.0%. In addition, the board of trustees believes that
  the merger will result in improved liquidity for ProLogis shareholders as a
  result of the increased total equity capitalization of the combined company
  and an increased trading volume of the securities of the combined company.
      
    (3) Approximately 98% of Meridian's assets are located in ProLogis'
  target markets, which allows ProLogis' experienced management team to
  spread its expertise over a broader asset base.
 
    (4) Similarities in Meridian and ProLogis assets are expected to create
  overhead savings and leasing and property management cost reductions.
  Management expects these savings and cost reductions to aggregate
  approximately $8.0 million on an annualized basis beginning in 1999.
 
    (5) The merger will give ProLogis increased market presence in key
  logistics markets. Forty-five percent of Meridian's assets are located in
  Los Angeles, Dallas and Chicago. After the merger, ProLogis will own assets
  totaling in excess of 38 million square feet in these key markets.
 
    (6) Meridian's refrigerated distribution facilities are located in
  markets ProLogis has targeted for its refrigerated business and are key
  strategic additions to ProLogis' refrigerated distribution network.
 
    (7) The combined company will have a diversified customer base, which the
  ProLogis board believes will further reduce ProLogis' exposure to large
  customers. The increase in ProLogis' customer base is expected to enhance
  ProLogis' position in markets it already serves.
     
    (8) Expanded customer relations will provide growth prospects through the
  expansion of a quality customer base. After the merger, ProLogis will have
  as customers 414 of ProLogis' targeted 1,000 largest users of distribution
  facilities worldwide. Additionally, 38 of ProLogis' current customers will
  become multi-market customers.     
 
    (9) The opinion, analysis and presentation of Merrill Lynch described
  below, including the opinion to the effect that, as of the date of such
  opinion, and based upon and subject to the matters stated in such opinion,
  the consideration to be paid by ProLogis in the merger is fair, from a
  financial point of view, to ProLogis and the shareholders of ProLogis.
   
 Negative factors considered by the ProLogis board     
 
  The ProLogis board also considered the matters described above under "Risk
Factors" as well as the following potentially negative factors in its
deliberations concerning the merger:
     
    (1) Because the exchange ratio is supplemented by cash consideration,
  ProLogis may have to distribute cash because of general fluctuations in the
  REIT market, which are not specifically related to ProLogis' financial
  results or ProLogis common shares.     
 
    (2) Because the exchange ratio is fixed, the ProLogis common shares that
  ProLogis will be required to issue in the merger may have a greater value
  than the value contemplated at the time the merger was signed or at the
  time the Average Trading Price is determined because of increases in the
  market price of ProLogis common shares.
 
    (3) ProLogis shareholders will not maintain their current percentage
  ownership of ProLogis.
 
    (4) The substantial management time and effort that will be required to
  consummate the merger and to combine the operations of the two companies.
 
  In view of the wide variety of factors considered by the ProLogis board, the
ProLogis board did not quantify or otherwise attempt to assign relative weights
to the specific factors considered in making its
 
                                       36
<PAGE>
 
determination. However, in the view of the ProLogis board, the potentially
negative factors considered by it were not sufficient, either individually or
collectively, to outweigh the positive factors considered by it in its
deliberations relating to the merger.
   
Opinion of ProLogis' financial advisor     
 
  Merrill Lynch was engaged by ProLogis to deliver to the board of trustees of
ProLogis a fairness opinion to assist ProLogis in evaluating a strategic merger
between Meridian and ProLogis.
 
  On November 16, 1998, Merrill Lynch delivered the Merrill Lynch opinion to
the ProLogis board stating that, as of November 16, 1998, and based upon the
assumptions made, matters considered and limits of review set forth therein,
the consideration to be received by holders of Meridian common stock in
accordance with the merger agreement (collectively the "Merger Consideration")
was fair, from a financial point of view, to ProLogis and the holders of
ProLogis common shares.
   
  The full text of the Merrill Lynch opinion, which sets forth assumptions
made, matters considered and limits on the review undertaken, is attached to
this joint proxy statement and prospectus as Annex B and is incorporated herein
by reference. The description of the Merrill Lynch opinion set forth herein is
qualified in its entirety by reference to the full text of the Merrill Lynch
opinion. Shareholders are urged to read the opinion in its entirety. In the
opinion of ProLogis, no events or significant changes in the information
provided by ProLogis to Merrill Lynch have occurred.     
   
  The Merrill Lynch opinion is addressed to the board of trustees of ProLogis
and addresses only the fairness, from a financial point of view, of the Merger
Consideration in the merger, does not address the merits of the underlying
decision by ProLogis to engage in the merger and does not constitute, nor
should it be construed as, a recommendation to any shareholder as to how such
shareholder should vote at the special meeting. The exchange ratio and the
Merger Consideration for the merger were determined on the basis of
negotiations between ProLogis and Meridian and were approved by the board of
trustees of ProLogis.     
 
  In connection with the preparation of the Merrill Lynch opinion, Merrill
Lynch, among other things:
     
    (1) reviewed certain publicly available business and financial
  information relating to ProLogis and Meridian which Merrill Lynch deemed to
  be relevant;     
     
    (2) reviewed certain information, including financial forecasts, relating
  to the business, earnings, funds from operations, adjusted funds from
  operations, cash flow, assets, liabilities and prospects of ProLogis and
  Meridian furnished to Merrill Lynch by ProLogis and Meridian, as well as
  the amount and timing of the cost savings and related expenses and
  synergies expected to result from the merger (the "Expected Synergies")
  furnished to Merrill Lynch by ProLogis and Meridian;     
     
    (3) conducted discussions with members of senior management of ProLogis
  and Meridian concerning the matters described in clauses (1) and (2) above,
  as well as their respective businesses and prospects before and after
  giving effect to the merger and the Expected Synergies;     
     
    (4) reviewed the market prices and valuation multiples for ProLogis'
  common shares and Meridian's common stock and compared them with those of
  certain publicly traded companies that Merrill Lynch deemed relevant;     
     
    (5) reviewed the results of operations of ProLogis and Meridian and
  compared them with those of certain publicly traded companies that Merrill
  Lynch deemed to be relevant;     
     
    (6) compared the proposed financial terms of the merger with the
  financial terms of certain other transactions which Merrill Lynch deemed to
  be relevant;     
 
                                       37
<PAGE>
 
     
    (7) participated in certain discussions and negotiations among
  representatives of ProLogis and Meridian and their financial and legal
  advisors;     
     
    (8) reviewed the potential pro forma impact of the merger on ProLogis;
         
    (9) reviewed a draft dated November 15, 1998 of the merger agreement; and
         
    (10) reviewed such other financial studies and analyses and took into
  account such other matters as Merrill Lynch deemed necessary, including
  Merrill Lynch's assessment of general economic, market and monetary
  conditions.     
   
  In preparing the Merrill Lynch opinion, Merrill Lynch has assumed and relied
on the accuracy and completeness of all information supplied or otherwise made
available to Merrill Lynch, discussed with or reviewed by or for Merrill Lynch,
or publicly available, and Merrill Lynch has not assumed any responsibility for
independently verifying such information or undertaken an independent
evaluation or appraisal of any of the assets or liabilities of ProLogis or
Meridian or been furnished with any such evaluation or appraisal. In addition,
Merrill Lynch has not assumed any obligation to conduct any physical inspection
of the properties or facilities of ProLogis or Meridian. With respect to the
financial forecast information and the Expected Synergies furnished to or
discussed with Merrill Lynch by ProLogis or Meridian, Merrill Lynch has assumed
that they have been reasonably prepared and reflect the best currently
available estimates and judgment of ProLogis' or Meridian's management as to
the expected future financial performance of ProLogis or Meridian, as the case
may be, and the Expected Synergies. Merrill Lynch has further assumed that the
merger will qualify as a tax-free reorganization for United States federal and
any applicable state income tax purposes. Merrill Lynch assumed that the merger
will not change the REIT status of the pro forma entity, and that the final
form of the merger agreement will be substantially similar to the last draft
thereof reviewed by Merrill Lynch.     
 
  The Merrill Lynch opinion is necessarily based upon market, real estate,
economic and other conditions as they exist and can be evaluated on, and on the
information made available to Merrill Lynch as of, the date of the Merrill
Lynch opinion. Merrill Lynch has assumed that, in the course of obtaining the
necessary regulatory or other consents or approvals, contractual or otherwise,
for the merger, no restrictions, including any divestiture requirements or
amendments or modifications, will be imposed that will have a material adverse
effect on the contemplated benefits of the merger or the Expected Synergies.
 
  At the meeting of the ProLogis board held on November 16, 1998, Merrill Lynch
telephonically presented certain financial analyses accompanied by written
materials in connection with the delivery of the Merrill Lynch opinion. The
following is a summary of the material financial and comparative analyses
performed by Merrill Lynch in arriving at the Merrill Lynch opinion.
 
  Merrill Lynch reviewed ProLogis' offer for Meridian and, on the basis thereof
and using publicly available share price information for the ProLogis common
shares as of November 13, 1998, calculated an aggregate net offer value (the
"Net Offer Value") of $862.4 million. The Net Offer Value consisted of $809.2
million of ProLogis common shares and $53.7 million in cash, less warrant
proceeds of $11.7 million, plus Meridian common stock option cash out of $11.1
million. Using an estimation of Meridian's debt balances as of December 31,
1998 provided by Meridian's management, Merrill Lynch also calculated an
aggregate transaction value (the "Transaction Value") of $1,502.9 million which
consisted of the Net Offer Value plus estimated debt as of December 31, 1998 of
$595.5 million, less an estimation of Meridian's cash balance as of December
31, 1998 of $5.0 million, plus liquidation value of perpetual preferred stock
as of December 31, 1998 of $50.0 million. Merrill Lynch also calculated the
offer price per share ("Offer Price per Share") transaction multiples based on
projections provided by Meridian's management of its funds from operations
("FFO") per share and FFO less recurring capital expenditures ("AFFO") per
share of 13.3x and 17.1x, respectively, for 1998 and 11.2x and 13.8x,
respectively, for 1999.
 
                                       38
<PAGE>
 
   
 Valuation of Meridian     
   
  Historical Trading Performance and Current Capitalization     
 
  Merrill Lynch reviewed certain trading information for Meridian and, on the
basis thereof, calculated its market value, market capitalization and trading
multiples based on its stock price as of November 13, 1998 of $21.69. For this
purpose, Merrill Lynch defined "total market capitalization" as the market
value of Meridian's common equity, plus preferred shares at liquidation value,
plus total debt plus minority interest less cash. Merrill Lynch then calculated
the market value of Meridian as a multiple of projected FFO, based on mean
estimates of FFO provided by First Call, an industry service provider of
earnings estimates based on an average of earnings estimates published by
various investment banking firms, and AFFO, based on estimates of AFFO from
analysts' reports from Merrill Lynch Equity Research. Meridian's FFO multiples
for 1998 and 1999 were 10.9x and 9.7x, respectively, and the AFFO multiples for
1998 and 1999 were 12.7x and 11.0x, respectively.
   
  Analysis of Selected Comparable Publicly Traded Companies     
   
  Using publicly available information and estimates of future financial
results published by First Call Corporation, a provider of real-time,
commingled research, earnings estimates and corporate information, and
information taken from Merrill Lynch Equity Research, Merrill Lynch compared
certain financial and operating information and ratios for Meridian with the
corresponding financial and operating information for a group of publicly
traded companies engaged primarily in the ownership, management, operation and
acquisition of industrial properties which Merrill Lynch deemed to be
reasonably comparable to Meridian. For the purpose of its analyses, the
following companies were used as comparable companies to Meridian: AMB Property
Corporation, Cabot Industrial Trust, CenterPoint Properties, Inc., ProLogis and
Spieker Properties, Inc. (collectively, the "Meridian Comparable Companies").
Merrill Lynch selected the companies to be compared to ProLogis from public
companies engaging in the same or similar lines of business and of
approximately similar size as ProLogis.     
 
  Merrill Lynch's calculations resulted in the following relevant ranges for
the Meridian Comparable Companies and for Meridian as of November 13, 1998:
 
<TABLE>   
<CAPTION>
                                                         Trading Valuation
                                                             Multiples
                                                      --------------------------
                                                          Public
                                                       Comparables
                                                      ----------------
                                                      Low   Mean  High  Meridian
                                                      ----  ----  ----  --------
<S>                                                   <C>   <C>   <C>   <C>
1998 projected FFO................................... 11.3x 11.9x 13.0x   10.9x
1999 projected FFO................................... 10.0x 10.6x 11.4x    9.7x
1998 projected AFFO.................................. 12.9x 13.7x 15.1x   12.7x
1999 projected AFFO.................................. 11.6x 12.1x 13.1x   11.0x
</TABLE>    
          
  This analysis results in a per share valuation of between $18.83 and $25.31.
    
  None of the Meridian Comparable Companies is, of course, identical to
Meridian. Accordingly, a complete analysis of the results of the foregoing
calculations cannot be limited to a quantitative review of such results and
involves complex considerations and judgments concerning differences in
financial and operating characteristics of the Meridian Comparable Companies,
and other factors that could affect the public trading volume of the Meridian
Comparable Companies, as well as that of Meridian. In addition, the multiples
of market value to estimated 1998 and projected 1999 FFO and AFFO for the
Meridian Comparable Companies are based on projections prepared by research
analysts using only publicly available information. Accordingly, such estimates
may or may not prove to be accurate.
   
  Comparable Transactions Analysis     
   
  Merrill Lynch also compared certain financial ratios of the merger with those
of other selected mergers and strategic transactions involving REITs which
Merrill Lynch deemed to be relevant. These transactions were Reckson/Crescent's
proposed merger with Tower Realty Trust, Equity Office Properties Trust's
merger with Beacon Properties, and Highwood Properties Trust's merger with
Crocker Realty.     
 
                                       39
<PAGE>
 
   
  Using publicly available information and estimates of financial results as
published by First Call, Merrill Lynch calculated the premium of the implied
offer value per share relative to the acquired company's stock price on the day
before announcement of the respective transaction and the implied offer value
per share for the acquired company, as of the day before the announcement of
the respective transaction, as a multiple of the estimated FFO per share for
such company for the current year, if the deal was announced in the first half
of the year, or for the next year if the deal was announced in the second half
of the year. This analysis resulted in the following relevant ranges for the
Meridian Comparable Transactions:     
 
<TABLE>   
<CAPTION>
                                                               Low   Mean  High
                                                               ----  ----  ----
      <S>                                                      <C>   <C>   <C>
      Premium to Market.......................................  7.3% 17.4% 28.3%
      Next Fiscal Year FFO.................................... 10.3x 13.4x 15.5x
</TABLE>    
   
  Discounted Cash Flow Analysis     
          
  Merrill Lynch performed discounted cash flow analyses, i.e., analyses of the
present value of the projected levered cash flows for the periods using the
discount rates indicated, of Meridian based upon projections provided by
Meridian's management of its FFO for the years 1999 through 2003, inclusive,
using discount rates reflecting an equity cost of capital ranging from 13.0% to
17.0% and terminal value multiples of calendar year 2003 FFO ranging from 10.5x
to 12.5x. Based upon Meridian's projection of FFO per share for the years 1999
through 2003 and its projected terminal value multiples, the range of present
values per share of Meridian common stock was $22.40 to $29.13.     
   
  Net Asset Valuation Analysis     
   
  Merrill Lynch performed a net asset valuation for Meridian based on an asset-
by-asset real estate valuation of Meridian's properties, an estimation of the
current value for Meridian's other assets and liabilities, and an estimation of
Meridian's debt balances as of December 31, 1998. The real estate valuation
utilized property specific projections prepared by Meridian's management for
the calendar year 1999. No appraisals of the properties were performed in
connection with Merrill Lynch's analysis. For the operating portfolio of
Meridian, the valuation utilized the direct capitalization method on 1999
property net operating income and a capitalization rate range of 8.25% to
8.75%. This analysis results in a per share valuation of between $24.27 and
$26.71.     
   
 Valuation of ProLogis     
   
  Historical Trading Performance and Current Capitalization     
 
  Merrill Lynch reviewed certain trading information for ProLogis and, on the
basis thereof, calculated its market value, market capitalization and trading
multiples based on its share price as of November 13, 1998 of $21.31. For this
purpose, Merrill Lynch defined "total market capitalization" as market value of
ProLogis' common equity, plus preferred shares at liquidation value, plus total
debt, less cash. Merrill Lynch then calculated the market value of ProLogis as
a multiple of projected FFO, based on mean estimates of FFO provided by First
Call and AFFO, based on estimates of AFFO from analysts' reports from Merrill
Lynch Equity Research. ProLogis' FFO multiples for 1998 and 1999 were 11.9x and
10.6x, respectively, and the FFO multiples for 1998 and 1999 were 13.7x and
12.2x, respectively.
   
  Analysis of Selected Comparable Publicly Traded Companies     
 
  Using publicly available information and estimates of future financial
results published by First Call and taken from Merrill Lynch Equity Research,
Merrill Lynch compared certain financial and operating information and ratios
for ProLogis with the corresponding financial and operating information for a
group of publicly traded companies engaged primarily in the ownership,
management, operation and acquisition of industrial distribution facilities
which Merrill Lynch deemed to be reasonably comparable to ProLogis. For the
purpose of
 
                                       40
<PAGE>
 
   
its analyses, the following companies were used as comparable companies to
ProLogis: AMB Property Corporation, Cabot Industrial Trust, CenterPoint
Properties, Inc., Meridian and Spieker Properties, Inc. (collectively, the
"ProLogis Comparable Companies"). These companies were selected because they
are publicly traded REITs owning a substantial amount of industrial real
estate.     
       
          
  Merrill Lynch's calculations resulted in the following relevant ranges for
the ProLogis Comparable Companies and for ProLogis as of November 13, 1998:
    
<TABLE>   
<CAPTION>
                                                         Trading Valuation
                                                             Multiples
                                                      --------------------------
                                                          Public
                                                       Comparables
                                                      ----------------
                                                      Low   Mean  High  ProLogis
                                                      ----  ----  ----  --------
<S>                                                   <C>   <C>   <C>   <C>
1998 projected FFO................................... 10.9x 11.7x 13.0x   11.9x
1999 projected FFO...................................  9.7x 10.4x 11.4x   10.6x
1998 projected AFFO.................................. 12.7x 13.5x 15.1x   13.7x
1999 projected AFFO.................................. 11.0x 11.9x 13.1x   12.2x
</TABLE>    
 
  This analysis results in a per share valuation of between $19.25 and $23.56.
 
  None of the ProLogis Comparable Companies is, of course, identical to
ProLogis. Accordingly, a complete analysis of the results of the foregoing
calculations cannot be limited to a quantitative review of such results and
involves complex considerations and judgments concerning differences in
financial and operating characteristics of the ProLogis Comparable Companies,
and other factors that could affect the public trading volume of the ProLogis
Comparable Companies, as well as that of ProLogis. In addition, the multiples
of market value to estimated 1998 and projected 1999 FFO and AFFO for the
ProLogis Comparable Companies are based on projections prepared by research
analysts using only publicly available information. Accordingly, such estimates
may or may not prove to be accurate.
   
  Comparable Transactions Analysis     
 
  Merrill Lynch also compared certain financial ratios of the merger with those
of other selected mergers and strategic transactions involving REITs which
Merrill Lynch deemed to be relevant. These transactions were Reckson/Crescent's
proposed merger with Tower Realty Trust, Equity Office Properties Trust's
merger with Beacon Properties, and Highwood Properties Trust's merger with
Crocker Realty.
   
  Using publicly available information and estimates of financial results as
published by First Call, Merrill Lynch calculated the premium of the implied
offer value per share relative to the acquired company's stock price on the day
before announcement of the respective transaction and the implied offer value
per share for the acquired company, as of the day before the announcement of
the respective transaction, as a multiple of the estimated FFO per share for
such company for the current year, if the deal was announced in the first half
of the year, or for the next year if the deal was announced in the second half
of the year. This analysis resulted in the following relevant ranges for the
ProLogis comparable transactions:     
 
<TABLE>   
<CAPTION>
                                                               Low   Mean  High
                                                               ----  ----  ----
      <S>                                                      <C>   <C>   <C>
      Premium to Market.......................................  7.3% 17.4% 28.3%
      Next Fiscal Year FFO.................................... 10.3x 1.34x 15.5x
</TABLE>    
   
  Discounted Cash Flow Analysis     
   
  Merrill Lynch performed discounted cash flow analyses, i.e., analyses of the
present value of the projected levered cash flows for the periods using the
discount rates indicated, of ProLogis based upon projections provided by
ProLogis' management of its FFO for the years 1999 through 2003, inclusive,
using discount rates reflecting an equity cost of capital ranging from 13.0% to
17.0% and terminal value multiples of calendar year 2003 FFO ranging from 10.5x
to 12.5x. Based upon ProLogis' projection of FFO per share for the years 1999
through 2003 and projected terminal value, the range of present values per
common share of ProLogis was $21.06 to $27.52.     
 
                                       41
<PAGE>
 
   
  Net Asset Valuation Analysis     
 
  Merrill Lynch also performed a net asset valuation for ProLogis based on an
asset-by-asset real estate valuation of ProLogis' properties, an estimation of
the current values for ProLogis' other assets and liabilities, and an
estimation of ProLogis' debt balances as of December 31, 1998. The real estate
valuation utilized property specific projections prepared by ProLogis'
management for the calendar year 1999. For the operating portfolio of ProLogis,
the valuation utilized the direct capitalization method on 1999 property net
operating income and a capitalization rate range of 8.00% to 8.75%. This
analysis resulted in a per share valuation of between $21.22 and $24.34.
   
 Pro Forma Merger Consequences     
   
  Implied Exchange Ratio Analysis--Comparative Valuations     
   
  Merrill Lynch utilized the results of each of the following four valuation
methodologies: Public Comparables; Acquisition Comparables; Discounted Cash
Flow Analysis (FFO Method) and the Net Asset Valuation in order to calculate a
range of implied exchange ratios for each method. This analysis yielded the
following ranges:     
 
<TABLE>   
<CAPTION>
                                                     Valuation Multiples
                                                -------------------------------
                                                 Low   High   Exchange ratio(a)
                                                -----  -----  -----------------
<S>                                             <C>    <C>    <C>
Public Comparables............................. 0.942x 1.315x       1.100x
Acquisition Comparables........................ 0.734x 1.662x       1.100x
Discounted Cash Flow Analysis (FFO Method)..... 0.814x 1.384x       1.100x
Net Asset Valuation............................ 0.997x 1.259x       1.100x
</TABLE>    
- --------
   
(a) Exchange ratio as set forth in the merger agreement.     
   
  Pro Forma Combination Analysis     
   
  Merrill Lynch analyzed the pro forma effects resulting from the merger,
including the potential impact on ProLogis' projected stand-alone FFO per share
and the anticipated accretion (i.e., the incremental increase) to ProLogis' FFO
per share resulting from the merger. Merrill Lynch observed that, after giving
effect to the Expected Synergies, the merger would be accretive to ProLogis'
projected FFO per share in each of the years 1999 through 2003, inclusive.     
   
  Capitalization     
   
  In addition, Merrill Lynch compared ProLogis' projected book capitalization
as of December 31, 1998 to its pro forma projected book capitalization as of
December 31, 1998, after giving effect to the merger and based on projections
of ProLogis' and Meridian's management, ProLogis' pro forma implied market
capitalization as of December 31, 1998 after giving effect to the transaction.
The projected total debt to implied market capitalization was 32.6%, 33.4% and
33.7% as of December 31, 1999, December 31, 2000 and December 31, 2001 on a pro
forma basis, respectively.     
 
  The summary set forth above does not purport to be a complete description of
the analyses performed by Merrill Lynch in arriving at its opinion. The
preparation of a fairness opinion is a complex process and not necessarily
susceptible to partial or summary description. Merrill Lynch believes that its
analyses must be considered as a whole and that selecting portions of its
analyses and of the factors considered by it, without considering all factors
and analyses, could create a misleading view of the process underlying the
Merrill Lynch opinion. In its analyses, Merrill Lynch made numerous assumptions
with respect to industry performance, general business and economic conditions
and other matters, many of which are beyond ProLogis', Meridian's and Merrill
Lynch's control. Any estimates contained in Merrill Lynch's analyses are not
 
                                       42
<PAGE>
 
necessarily indicative of actual values, which may be significantly more or
less favorable than as set forth therein. Estimated values do not purport to be
appraisals and do not necessarily reflect the prices at which businesses or
companies may be sold in the future, and such estimates are inherently subject
to uncertainty.
 
  The board of trustees of ProLogis selected Merrill Lynch to render a fairness
opinion because Merrill Lynch is an internationally recognized investment
banking firm with substantial experience in transactions similar to the merger
and because it is familiar with ProLogis and its business. Merrill Lynch is
continually engaged in the valuation of businesses and their securities in
connection with mergers and acquisitions, leveraged buyouts, negotiated
underwritings, secondary distributions of listed and unlisted securities and
private placements.
 
  Pursuant to a letter agreement dated November 12, 1998, ProLogis agreed to
pay Merrill Lynch a fee of $3.85 million which is contingent upon consummation
of the merger. In addition, ProLogis agreed to indemnify Merrill Lynch and
certain related persons against certain liabilities arising out of or in
conjunction with its rendering of services under such letter agreement,
including certain liabilities under federal securities laws. ProLogis paid a
fee to Merrill Lynch of $200,000 upon the execution of the merger agreement,
which will be applied to the $3.85 million fee mentioned above.
 
  Merrill Lynch has, in the past, provided financial advisory and financing
services to ProLogis and may continue to do so and has received, and may
receive, fees for the rendering of such services. In addition, in the ordinary
course of its business, Merrill Lynch may actively trade in the securities of
ProLogis or Meridian for its own account and the account of its customers and,
accordingly, may at any time hold a long or short position in such securities.
   
Reasons for the merger; Recommendations of the Meridian board     
   
  Meridian's board of directors has determined that the terms of the merger and
the merger agreement are advisable and fair to, and that the merger is in the
best interests of, Meridian and its stockholders and recommends that Meridian
stockholders vote for the approval of the merger.     
   
  In considering the recommendation of Meridian's board with respect to the
merger, Meridian stockholders should be aware that two members of the Meridian
board will become trustees of ProLogis following consummation of the merger and
one of Meridan's directors, Allen J. Anderson, may become entitled to severance
benefits as a result of the merger. Therefore, such directors have interests in
the merger that are different than, or in addition to, the interests of
stockholders of Meridian generally. The Meridian board was aware of these
interests and considered them, among other matters, in approving the merger
agreement and the merger. See "--Interest of certain persons."     
 
  In its deliberations with respect to the merger and the merger agreement, the
Meridian board consulted with Meridian's management and the financial and legal
advisors to Meridian. The factors considered by the Meridian board include
those enumerated below. While all of these factors were considered by the
Meridian board, the Meridian board did not make determinations with respect to
each such factor. Rather, the Meridian board made its judgment with respect to
the merger and the merger agreement based on the total mix of information
available to it, and the judgments of individual directors may have been
influenced to a greater or lesser degree by their individual views with respect
to different factors.
   
  Positive factors considered by the Meridian board     
 
  The factors considered by the Meridian board in evaluating the merger and the
merger agreement included the following:
 
    (1) its knowledge of the business, operations, assets, properties,
  operating results and financial condition of Meridian;
 
                                       43
<PAGE>
 
    (2) Meridian's strategic alternatives, including the prospects of
  positioning Meridian for the future and restoring and enhancing long-term
  stockholder value by remaining an independent company or by effecting a
  strategic business combination with another company;
 
    (3) information concerning Meridian's prospects as an independent
  company;
 
    (4) information concerning the financial position, results of operations,
  businesses, competitive position and prospects of a business combination
  with each of ProLogis, Company A and Company C;
 
    (5) the philosophies of the managements of each of ProLogis, Company A
  and Company C, and the similarity of those with that of Meridian's
  management;
     
    (6) the extensive information developed during the period of the
  solicitation process discussed under "--Background of the merger" with
  respect to ProLogis, Company A and Company C, as well as the extensive and
  inclusive nature of the solicitation process itself;     
 
    (7) specifically, with respect to a business combination with ProLogis:
 
      (A) the exchange ratio and recent trading prices for shares of
    Meridian common stock and ProLogis common shares;
 
      (B) the opportunity for the stockholders of Meridian to receive a
    premium over the market price for their Meridian common stock
    immediately prior to announcement of the merger agreement (the exchange
    ratio implied a premium of $2.8125, or 12.7%, over the closing market
    price per share of Meridian common stock on November 16, 1998 based on
    the closing market price ($21.1875) for ProLogis common shares on the
    same day);
 
      (C) the anticipated positive effects of the merger on Meridian
    stockholders through their ownership of stock in a combined company
    that will likely have greater stability and strength due to its
    increased number of target markets, and a more diversified customer
    base, thereby reducing the adverse impact of regional economic cycles
    and the relative significance of any individual customer, its expected
    cost savings and synergies expected to result from the consolidation of
    Meridian's and ProLogis' stand-alone operations, and its expected
    increased flexibility and leverage in financing activities;
 
      (D) the terms of the merger agreement, which provide for reciprocal
    representations and warranties, conditions to closing and rights to
    termination, and balanced rights and obligations (as discussed under
    "The Merger Agreement");
 
      (E) the tax treatment of the merger; and
       
      (F) the numerous presentations made by Goldman Sachs to the Meridian
    board during the solicitation process and the oral opinion of Goldman
    Sachs rendered to the Meridian board on November 16, 1998 that as of
    such date, and based on and subject to the various qualifications and
    assumptions described therein, the consideration to be received in the
    merger by Meridian common stockholders was fair from a financial point
    of view, to the holders of Meridian common stock. See "--Opinion of
    Meridian's financial advisor."     
   
  Negative factors considered by the Meridian board     
 
  Meridian's board of directors also considered the following potentially
negative factors in its deliberations concerning the merger:
 
    (1) the risk that the benefits sought in the merger would not be
  obtained,
 
    (2) the risk of a decline in the trading price for ProLogis common shares
  and its effect on the value to be received by Meridian's common
  stockholders,
     
    (3) the risk that the merger would not be completed,     
 
    (4) the effect of the public announcement of the merger on Meridian's
  ability to retain employees and on the trading price of Meridian's common
  stock,
     
    (5) the substantial management time and effort that will be required to
  complete the merger and integrate the operations of the two companies,     
 
                                       44
<PAGE>
 
    (6) the impact of the merger on Meridian personnel, and
     
    (7) other matters described under "Risk Factors" on pages 22 to 29.     
 
  In the judgment of the Meridian board of directors, the potential benefits of
the merger to Meridian's stockholders clearly outweighed the risks inherent in
the transaction.
   
Opinion of Meridian's financial advisor     
 
  At the November 16, 1998 meeting of the Meridian board of directors, Goldman
Sachs rendered its oral opinion, which was subsequently confirmed by a written
opinion dated the same date, that as of such date, and based upon and subject
to the various qualifications and assumptions described therein, the
consideration to be received by the holders of Meridian common stock in the
merger is fair from a financial point of view to the holders of Meridian common
stock.
   
  The full text of the written opinion of Goldman Sachs dated November 16, 1998
which sets forth assumptions made, procedures followed, matters considered and
limitations on the review undertaken in connection with the opinion is attached
as Annex C to this joint proxy statement and prospectus and is incorporated
herein by reference. Holders of Meridian common stock are urged to, and should,
read such opinion in its entirety. Goldman Sachs' opinion is addressed to the
Meridian board and addresses only the fairness to the holders of Meridian
common stock of the merger consideration and does not constitute a
recommendation to any holder of Meridian common stock as to how such holder
should vote with respect to the merger.     
 
  In connection with its opinion, Goldman Sachs reviewed, among other things,
     
  . the merger agreement;     
     
  . the voting agreement;     
     
  . the Annual Reports to Stockholders and Annual Reports on Form 10-K of
    Meridian for each of the two years ended December 31, 1996 and 1997 and
    in the case of ProLogis for each of the four years in the four-year
    period ended December 31, 1997;     
     
  . interim reports to shareholders and Quarterly Reports on Form 10-Q of
    Meridian and ProLogis;     
     
  . certain other communications from Meridian and ProLogis to their
    respective shareholders; and     
     
  . certain internal financial analyses and forecasts for Meridian and
    ProLogis prepared by their respective managements, including the
    projected cost savings and operating synergies projected by the
    management of Meridian resulting from the merger (the "Synergies").     
 
  Goldman Sachs also held discussions with members of the senior management of
Meridian and ProLogis regarding the strategic rationale for, and the potential
benefits of, the merger and the past and current business operations, financial
condition and future prospects of their respective companies. In addition,
Goldman Sachs reviewed the reported price and trading activity for the Meridian
common stock and the ProLogis common shares, compared certain financial and
stock market information for Meridian and ProLogis with similar information for
certain other companies, the securities of which are publicly traded, reviewed
the financial terms of certain recent business combinations in the real estate
industry specifically and performed such other studies and analyses as it
considered appropriate.
 
  Goldman Sachs relied upon the accuracy and completeness of all of the
financial and other information reviewed by it and has assumed such accuracy
and completeness for purposes of rendering its opinion. In that regard, Goldman
Sachs assumed, with Meridian's consent, that the Synergies were reasonably
prepared on a basis reflecting the best currently available judgments and
estimates of the management of Meridian. In addition, Goldman Sachs did not
make an independent evaluation or appraisal of the assets and liabilities of
Meridian or ProLogis or any of their subsidiaries and Goldman Sachs was not
furnished with any such evaluation or appraisal. The opinion referred to herein
was provided for the information and assistance of
 
                                       45
<PAGE>
 
Meridian's board of directors in connection with its consideration of the
merger and such opinion does not constitute a recommendation as to how any
holder of Meridian common stock should vote with respect to such transaction.
 
  The following is a summary of certain of the financial analyses used by
Goldman Sachs in connection with providing its written opinion, dated November
16, 1998, to the Meridian board.
    
 Contribution Analysis     
   
  Goldman Sachs reviewed estimated future financial information for Meridian,
ProLogis and the pro forma combined entity resulting from the merger including
Meridian's management's forecast for Synergies for the pro-forma combined
entity, including:     
     
  . estimated 1998 and 1999 net operating income ("NOI") (adjusted to
    eliminate the effect of leverage);     
     
  . estimated 1998 and 1999 earnings before interest, income, taxes,
    depreciation and amortization ("EBITDA");     
     
  . estimated 1998 and 1999 funds from operations ("FFO"); and     
     
  . estimated 1998 funds available for distribution ("FAD").     
   
  These analyses indicated the following contributions by Meridian to the
combined company for the following periods and implied exchange ratios based on
such contributions:     
 
<TABLE>   
<CAPTION>
                                             1998                  1999
                                     --------------------- ---------------------
                                       Meridian              Meridian
                                     Contribution Implied  Contribution Implied
                                     to Combined  Exchange to Combined  Exchange
                                       Company     Ratio     Company     Ratio
                                     ------------ -------- ------------ --------
<S>                                  <C>          <C>      <C>          <C>
NOI.................................    22.2%      1.17x      21.4%      1.09x
EBITDA..............................    21.9%      1.14x      21.3%      1.08x
FFO.................................    21.4%      1.10x      22.4%      1.17x
FAD.................................    20.2%      1.03x      22.0%      1.15x
</TABLE>    
    
 Comparable Companies Analysis     
   
  Goldman Sachs reviewed and compared financial information relating to
Meridian to corresponding financial information for the following publicly
traded REITs: CenterPoint Properties Trust, AMB Property Corporation, ProLogis,
Cabot Industrial Trust, Weeks Corporation, EastGroup Properties, Inc. and First
Industrial Realty Trust (the "Selected Companies"). The Selected Companies were
chosen because they are publicly-traded companies with operations that for
purposes of analysis may be considered similar to Meridian. Like Meridian, each
of the Selected Companies is a publicly traded REIT that owns a substantial
amount of industrial real estate. The financial information for Meridian and
the Selected Companies were based on the most recent publicly available
information, on information supplied by Institutional Brokers Estimates System
("IBES") and on the closing market prices on November 13, 1998. IBES is a data
service that monitors and publishes compilations of earnings estimates by
selected research analysts regarding companies of interest to institutional
investors. Goldman Sachs' analyses indicated the following with respect to the
Selected Companies and Meridian:     
 
<TABLE>   
<CAPTION>
                                                           Selected Companies
                                                          --------------------
                                                 Meridian     Range      Mean
                                                 -------- -------------- -----
<S>                                              <C>      <C>            <C>
1997 FFO Multiple*..............................  12.5x    9.9x to 15.5x 12.9x
Estimated 1998 FFO Multiple*....................  11.0x    8.5x to 13.0x 10.9x
Estimated 1999 FFO Multiple*....................   9.7x    7.7x to 11.4x  9.7x
Estimated 1997-1999 Compound Annual Growth
 Rates..........................................  13.8%   10.1% to 23.7% 15.1%
Estimated 1999 FFO to Growth Rate Multiple*.....  0.70x   0.42x to 0.86x 0.67x
</TABLE>    
- --------
   
   *Based on November 13, 1998 closing prices.     
 
                                       46
<PAGE>
 
    
 Selected Transactions Analysis     
   
  Goldman Sachs analyzed information relating to selected transactions in the
public REIT industry since 1995 (the "Selected Transactions"). Goldman Sachs'
analyzed:     
     
  . the premium or discount of the implied offer price to the target stock
    price on the trading day before the particular Selected Transaction was
    announced (the "Premium/Discount Over Previous Day"),     
     
  . the premium or discount of the implied offer price to the average target
    stock price over the 60 trading days before the particular Selected
    Transaction was announced (the "Premium/Discount Over 60 Day Average"),
           
  . the transaction FFO multiple (based on the implied offer price as a
    multiple of the target FFO estimate at the announcement date) (the "FFO
    Multiple") and     
     
  . the transaction FFO multiple as a percentage of the acquiring company's
    FFO multiple for the particular Selected Transaction (the "Percentage FFO
    Multiple").     
   
  These analyses indicated the following with respect to the merger and the
Selected Transactions:     
 
<TABLE>   
<CAPTION>
                                                     Selected Transactions
                                                  ----------------------------
                                Meridian/ProLogis      Range      Mean  Median
                                ----------------- --------------- ----- ------
<S>                             <C>               <C>             <C>   <C>
Premium/Discount Over Previous
 Day...........................       15.3%       -0.9% to 28.4%   9.2%  9.0%
Premium/Discount Over 60 Day
 Average ......................       20.0%       -6.5% to 33.6%  10.3% 12.3%
FFO Multiple...................       11.2x        6.7x to 15.6x  11.3x 11.6x
Percentage FFO Multiple........      104.7%       73.5% to 109.8% 96.2% 98.4%
</TABLE>    
    
 Historical Exchange Ratio Analysis     
   
  Goldman Sachs analyzed the implied exchange ratios of Meridian common stock
and ProLogis common shares based on a comparison of historical average prices
for Meridian common stock and ProLogis common shares over a 12 month period
from November 13, 1997 to November 13, 1998 and calculated the implied
transaction premiums over the implied historical exchange ratios of Meridian
common stock and ProLogis common shares for the periods set forth below, based
on the closing share prices and weighted averages as of or through November 13,
1998 and an exchange ratio of 1.10x for the merger (excluding the cash portion,
if any).     
 
<TABLE>   
<CAPTION>
      Period                                         Implied Transaction Premium
      ------                                         ---------------------------
      <S>                                            <C>
      90 days ended November 13, 1998...............            17.0%
      180 days ended November 13, 1998..............            17.0%
      365 days ended November 13, 1998..............            12.2%
</TABLE>    
    
 Sensitivity Analysis     
   
  Goldman Sachs performed a sensitivity analysis based on different synergy
assumptions for the combined company. This analysis assumed: (a) the IBES
estimated stand alone 1999 FFO for Meridian of $2.24 per share (the "Meridian
1999 FFO"), (b) the IBES estimated stand alone 1999 FFO for ProLogis of $2.00
per share (the "ProLogis 1999 FFO"), (c) $15.3 million of transaction costs and
$16.2 million of change of control costs, based on Meridian management
projections, (d) financing costs of 120 basis points over 1 month LIBOR (all-in
rate of 6.92%), and (e) per share merger consideration of $25.00 for each share
of Meridian common stock ($23.44 of ProLogis common shares and $1.56 in cash).
    
          
  Goldman Sachs' analysis indicated that,     
     
  (1) assuming synergies of $14.0 million for the combined entity:     
       
    . the pro forma combined company would have an estimated FFO accretion
      in 1999 of $0.05 per share, or 2.7%, compared to 1999 ProLogis FFO,
          
                                       47
<PAGE>
 
       
    . the pro forma combined company would have an estimated FFO accretion
      in 1999 of $0.02 per share, or 0.85%, compared to 1999 Meridian FFO
      and     
       
    . the proportion of pro forma debt of the combined company to the pro
      forma total market capitalization of the combined company (the "Pro-
      Forma Leverage") would be 31.4%;     
     
  (2) assuming synergies of $11.2 million for the combined company:     
       
    . the pro forma combined company would have an estimated FFO accretion
      in 1999 of $0.04 per share, or 1.9%, compared to 1999 ProLogis FFO,
             
    . the pro forma combined company would have an estimated FFO accretion
      in 1999 of $0.00 per share, or 0.08%, compared to 1999 Meridian FFO
      and     
       
    . the Pro-Forma Leverage would be 31.6%;     
     
  (3) assuming synergies of $8.4 million for the combined company:     
       
    . the pro forma combined company would have an estimated FFO accretion
      in 1999 of $0.02 per share, or 1.1%, compared to 1999 ProLogis FFO,
             
    . the pro forma combined company would have an estimated FFO dilution
      in 1999 of $0.02 per share, or 0.69%, compared to 1999 Meridian FFO
      and     
       
    . the Pro-Forma Leverage would be 31.7%;     
     
  (4) assuming synergies of $5.6 million for the combined entity:     
       
    . the pro forma combined company would have an estimated FFO accretion
      in 1999 of $0.01 per share, or 0.3%, compared to 1999 ProLogis FFO,
             
    . the pro forma combined company would have an estimated FFO dilution
      in 1999 of $0.03 per share, or 1.46%, compared to 1999 Meridian FFO
      and     
       
    . the Pro-Forma Leverage would be 31.9%; and     
     
  (5) assuming synergies of $2.8 million for the combined company:     
       
    . the pro forma combined company would have an estimated FFO dilution
      in 1999 of $0.01 per share, or 0.5%, compared to 1999 ProLogis FFO,
             
    . the pro forma combined company would have an estimated FFO dilution
      in 1999 of $0.05 per share, or 2.23%, compared to 1999 Meridian FFO
      and     
       
    . the Pro-Forma Leverage would be 32.0%.     
   
  Goldman Sachs' analysis further indicated that, based on the assumptions
described above, Meridian stockholders would hold 21.3% of the shares
outstanding of the pro forma combined company.     
    
 Net Asset Value Analysis     
   
  Goldman Sachs estimated the net asset value per share for Meridian common
stock as of year-end 1998 (calculated by subtracting outstanding debt and other
liabilities from gross value, where gross value was based on Meridian's
projected core portfolio net operating income of $126 million (the "Meridian
Portfolio NOI") at capitalization rates ranging from 8.75% to 9.25% plus the
estimated year-end 1998 value of other assets).     
   
  These analyses indicated the following estimated net asset values of Meridian
common stock:     
 
<TABLE>   
<CAPTION>
      Capitalization Rate of Meridian       Estimated Net Asset Value of
      Portfolio NOI                         Meridian Common Stock at 12/31/98
      -------------------------------       ---------------------------------
      <S>                                   <C>
      8.75%................................ $26.16
      9.00%................................ $24.99
      9.25%................................ $23.88
</TABLE>    
 
  The preparation of a fairness opinion is a complex process and is not
necessarily susceptible to partial analysis or summary description. Selecting
portions of the analyses or of the summary set forth above, without considering
the analyses as a whole, could create an incomplete view of the processes
underlying Goldman Sachs' opinion. In arriving at its fairness determination,
Goldman Sachs considered the results of all such
 
                                       48
<PAGE>
 
analyses. No company or transaction used in the above analyses as a comparison
is directly comparable to Meridian or ProLogis or the merger. The analyses were
prepared solely for purposes of Goldman Sachs' providing its opinion to the
Meridian board of directors as to the fairness, from a financial point of view,
of the consideration to be received in the merger to the holders of Meridian
common stock and do not purport to be appraisals or necessarily reflect the
prices at which businesses or securities actually may be sold. Analyses based
upon forecasts or future results are not necessarily indicative of actual
future results, which may be significantly more or less favorable than
suggested by such analyses. Because such analyses are inherently subject to
uncertainty, being based upon numerous factors or events beyond the control of
the parties or their respective advisors, none of Meridian, ProLogis, Goldman
Sachs or any other person assumes responsibility if future results are
materially different from those forecast. As described above, Goldman Sachs'
opinion to the Meridian board of directors was one of many factors taken into
consideration by the Meridian board of directors in making its determination to
approve the merger agreement and the merger. The foregoing summary does not
purport to be a complete description of the analysis performed by Goldman Sachs
and is qualified by reference to the written opinion of Goldman Sachs set forth
in Annex C hereto.
   
  Goldman Sachs, as part of its investment banking business, is continually
engaged in the valuation of businesses and their securities in connection with
mergers and acquisitions, negotiated underwritings, competitive biddings,
secondary distributions of listed and unlisted securities, private placements
and valuations for estate, corporate and other purposes. The Meridian board of
directors selected Goldman Sachs as its financial advisor because it is a
nationally recognized investment banking firm that has substantial experience
in transactions similar to the merger and because of Goldman Sachs' familiarity
with Meridian. Goldman Sachs is familiar with Meridian, having acted as its
financial advisor in connection with, and having participated in certain of the
negotiations leading to, the merger agreement, as well as having acted as:     
     
  . lead-managing underwriter of a public offering of its 8.75% Series D
    cumulative redeemable preferred stock in June 1998 and     
     
  . co-managing underwriter of an offering of $160 million of 7.25% and 7.30%
    Unsecured Notes due 2007 and 2009 in November 1997.     
   
Goldman Sachs is also familiar with ProLogis, having acted as its financial
advisor in connection with the acquisition of ProLogis' REIT manager and
property manager in September 1997, and having acted in connection with the
public offering of securities as:     
     
  . lead managing underwriter of an offering of $274.5 million of common
    shares in October 1994,     
     
  . lead managing underwriter of an offering of $135 million of Series A
    cumulative redeemable preferred shares of beneficial interest in June
    1995,     
     
  . lead managing underwriter of an offering of $100 million 7.81% Medium-
    Term Notes-Series A, due 2015, in February 1997,     
     
  . lead managing underwriter of an offering of $100 million of 7.625% Notes
    due 2017 in July 1997,     
     
  . lead managing underwriter of an offering of $125 million of 7% Notes due
    2003 in October 1998 and     
     
  . lead-managing underwriter of an offering of $250 million of 7.05% Notes
    due 2006 in July 1998.     
   
Goldman Sachs is providing and may continue to provide investment banking
services to ProLogis in the future. Goldman Sachs is also a placement agent
under ProLogis' medium-term note program. In addition, Goldman Sachs is
familiar with Security Capital, which has an equity investment in ProLogis,
having rendered significant investment banking services to Security Capital and
certain of its affiliates from time to time, including having acted as
principal in certain transactions, and Goldman Sachs is providing and may
continue to provide investment banking services or act as principal in certain
transactions with Security Capital and its affiliates in the future.     
 
  Goldman Sachs provides a full range of financial, advisory and security
services and in the course of its normal trading activities may from time to
time effect transactions and hold securities, including derivative securities,
of Meridian, ProLogis or Security Capital for its account and for the accounts
of customers.
 
                                       49
<PAGE>
 
  Pursuant to a letter agreement dated September 28, 1998 (the "Goldman
Engagement Letter"), the Meridian board of directors engaged Goldman Sachs as
its financial advisor and to render an opinion with respect to the fairness of
the financial consideration to be received by holders of Meridian common stock.
Pursuant to the terms of the Goldman Engagement Letter, Meridian has agreed to
pay Goldman Sachs a fee of 0.70% of the total consideration paid for Meridian's
equity securities, including amounts paid to holders of options, warrants and
convertible securities, plus the principal amount of all indebtedness for
borrowed money as set forth on the most recent consolidated balance sheet of
Meridian prior to the consummation of the merger. Meridian has agreed to
reimburse Goldman Sachs for its reasonable out-of-pocket expenses, including
attorney's fees, and to indemnify Goldman Sachs against certain liabilities,
including certain liabilities under the federal securities laws.
   
Interests of certain persons     
   
  Allen J. Anderson, Milton K. Reeder and Dennis G. Higgs together own all of
the Class A common stock and Jurgen Spaethe owns all of the Class B non-voting
common stock of Meridian Refrigerated, Inc., an entity in which Meridian owns
substantially all of the economic interest. At or prior to the merger, CS
Integrated LLC, an entity in which ProLogis owns a substantial majority of the
economic interest, will purchase all of the Class A common stock of Meridian
Refrigerated, Inc. In connection with this transaction, the common shareholders
of Meridian Refrigerated, Inc., other than Mr. Spaethe who is the president and
chief executive officer of Meridian Refrigerated, Inc., will receive an
aggregate of approximately $513,000 in cash for their shares (for which such
persons paid an aggregate of approximately $455,000) and Mr. Spaethe will
receive approximately $150,000 in cash for his shares.     
   
  The merger will qualify as a change in control for purposes of the Meridian
severance agreements and the Meridian officers will be entitled to receive cash
severance payments if Meridian, or the surviving entity, terminates an
officer's employment within 18 months following the change in control or the
officer terminates his own employment within six months following the change in
control. The definition of a change in control includes a merger in which the
holders of Meridian common stock and other voting securities prior to the
merger cease to hold at least 50% of the common stock and other voting
securities of the company created by the merger. In addition, each of such
persons will be entitled to receive an amount necessary to pay applicable
excise taxes to which such person would be subject as a result of these
payments and any other taxable income recognized as a result of the change of
control.     
 
  The following table summarizes the maximum severance payments to which
officers of Meridian would be entitled:
 
<TABLE>
<CAPTION>
                                                                     Amount of
           Name and Title                                             Payment
           --------------                                            ----------
      <S>                                                            <C>
      Allen J. Anderson............................................. $1,240,000
      Chairman and Chief Executive Officer
      Milton K. Reeder.............................................. $  900,000
      Chief Financial Officer
      Dennis D. Higgs............................................... $  860,000
      Executive Vice President
      Peter D. Harmon............................................... $  270,000
      Vice President
      Timothy B. Keith.............................................. $  240,000
      Vice President--Regional
      All officers as a group
       (8 persons).................................................. $4,104,250
</TABLE>
 
                                       50
<PAGE>
 
   
  On August 19, 1998, the compensation committee of the Meridian board of
directors and the Meridian board of directors approved a re-pricing of the
exercise price of outstanding stock options to $21.125. These options had been
granted to the directors and to officers and employees of Meridian in 1997 and
1998 at exercise prices ranging from $22.00 to $25.625 per share with ten year
terms. Although the Meridian board was unwilling to unconditionally reset the
exercise price of such options, the board believed that a reset of the exercise
price contingent upon a change of control would be beneficial to the
stockholders of Meridian. Because the Meridian board expected that the majority
of its employees would not be offered positions in a business combination that
resulted in a change in control of Meridian, the board believed such a
repricing would provide an incentive to the management of Meridian to support a
change of control which would be in the best interests of the Meridian
stockholders.     
 
<TABLE>
<CAPTION>
                                                                                               Length of
                                        Number of                                              Original
                                        Securities    Market Price      Exercise              Option Term
                                        Underlying     of Stock at      Price at       New     Remaining
                                         Options         Time of         Time of    Exercise  at Date of
            Name                Date   Repriced (#) Repricing ($) (1) Repricing ($) Price ($)  Repricing
            ----                ----   ------------ ----------------- ------------- --------- -----------
<S>                            <C>     <C>          <C>               <C>           <C>       <C>
Allen J. Anderson............  8/19/98    70,000         21.125           22.00      21.125    8.5 years
Chief Executive Officer
                               8/19/98   300,000         21.125          25.1875     21.125    9.5 years
Brian R. Barringer...........  8/19/98    50,000         21.125          25.1875     21.125    9.5 years
Vice President
Robert A. Dobbin.............  8/19/98    10,000         21.125           22.00      21.125    8.5 years
Secretary and General Counsel  8/19/98    25,000         21.125          25.1875     21.125    9.5 years
Peter B. Harmon..............  8/19/98    15,000         21.125           22.00      21.125    8.5 years
Vice President--Regional       8/19/98     2,500         21.125          23.125      21.125   8.75 years
Director                       8/19/98    20,000         21.125          25.1875     21.125    9.5 years
Dennis D. Higgs..............  8/19/98    45,000         21.125           22.00      21.125    8.5 years
Executive Vice President and   8/19/98   210,000         21.125          25.1875     21.125    9.5 years
Chief Investment Officer
Timothy B. Keith.............  8/19/98    10,000         21.125           22.00      21.125    8.5 years
Vice President--Regional       8/19/98    55,000         21.125          25.1875     21.125    9.5 years
Director
Milton K. Reeder.............  8/19/98    45,000         21.125           22.00      21.125    8.5 years
President and Chief Financial  8/19/98   215,000         21.125          25.1875     21.125    9.5 years
Officer
Greg Skirving (2)............  8/19/98    11,351         21.125          25.1875     21.125    9.5 years
Senior Vice President--
National Marketing
James Suarez.................  8/19/98    10,000         21.125           22.00      21.125    8.5 years
Vice President--Finance        8/19/98    25,000         21.125          25.1875     21.125    9.5 years
</TABLE>
- --------
(1) Reflects the closing price of Meridian common stock on August 18, 1998.
(2) Mr. Skirving is no longer an employee of Meridian.
 
  All of Meridian's outstanding stock options, including the 130,020 options
held by Meridian's independent directors, will vest and become fully
exercisable upon the closing of the merger.
 
  On August 18, 1998, in connection with the Meridian board of directors'
analysis of Meridian's strategic alternatives, the Meridian board authorized
grants of restricted common stock to Messrs. Anderson, Reeder and Higgs, Robert
A. Dobbin, Meridian's general counsel, and Timothy B. Keith, a vice president
and regional director of Meridian (110,000 shares, 70,000 shares, 70,000
shares, 15,000 shares and 17,000 shares, respectively). These restricted stock
grants will vest and the restrictions will lapse upon the closing of the
merger.
 
                                       51
<PAGE>
 
   
  If the merger is completed, two of the current members of Meridian's board
will be chosen by ProLogis to become trustees of ProLogis. These directors of
Meridian will continue as trustees of ProLogis after the merger and will be
granted options to acquire 2,000 common shares of ProLogis pursuant to the
ProLogis Share Option Plan for outside Trustees upon their appointment to the
ProLogis board and will be compensated for their services as trustees and
granted annual options during their tenure as trustees. While the two persons
to serve as ProLogis trustees have not yet been selected by ProLogis, they will
receive benefits that will not be shared by other stockholders of Meridian
generally.     
   
  Prudential Securities Incorporated, an affiliate of Prudential Real Estate,
Meridian's largest stockholder, will be entitled to a fee of $1 million in
connection with its services to Meridian as a financial advisor in connection
with the merger.     
          
Voting agreements     
   
  Concurrently with the execution of the merger agreement, Meridian and
Security Capital entered into a voting agreement which requires that, subject
to its terms and conditions, Security Capital vote all ProLogis common shares
beneficially owned by it in favor of the merger.     
   
  Under the voting agreement, Security Capital may not, directly or indirectly,
sell, transfer, pledge, assign or otherwise dispose of its ProLogis common
shares, unless subsequent holders of the ProLogis common shares expressly agree
to be bound by the voting agreement.     
   
  The voting agreement terminates upon the earlier of the termination of the
merger agreement or the effective time of the merger.     
   
  Additionally, Meridian has agreed to use its reasonable best efforts to cause
Prudential Real Estate to enter into a written voting agreement with ProLogis
having the same terms as the Security Capital Group voting agreement. If the
Prudential Real Estate voting agreement is obtained, the termination fee
applicable to Meridian under the merger agreement will be reduced from $40
million to $25 million. Prior to and immediately following the execution of the
merger agreement, Allen Anderson, Meridian's chief executive officer, and
Messrs. Brooksher and Lyons, co-chairmen of ProLogis, each met separately with
representatives of Prudential Real Estate to discuss the voting agreement.
Prudential Real Estate did not agree to enter into a voting agreement at that
time but indicated that it would consider such an agreement. As of the date of
this joint proxy statement and prospectus, no such agreement has been entered
into.     
   
Material federal income tax consequences     
   
  The following is a summary of the material U.S. federal income tax
consequences of the merger of Meridian with and into ProLogis. The discussion
below under "--Tax treatment of Meridian and ProLogis" is accurate in all
material respects as to matters of law and legal conclusions and, to the extent
such discussion constitutes matters of law or legal conclusions, it is based on
the opinion of each of Mayer, Brown & Platt and Vinson & Elkins L.L.P. This
summary is based upon the current provisions of the Internal Revenue Code of
1986, as amended (the "Code"), its legislative history, Treasury regulations,
administrative pronouncements and judicial decisions, all of which are subject
to change, possibly with retroactive effect. This summary does not purport to
be a complete discussion of all U.S. federal income tax consequences relating
to the merger. This summary does not address the tax consequences of the merger
under state, local or non-U.S. tax laws. In addition, this summary may not
apply, in whole or in part, to particular categories of ProLogis or Meridian
shareholders, such as financial institutions, broker-dealers, life insurance
companies, tax-exempt organizations, investment companies, foreign taxpayers,
individuals who received ProLogis common shares or Meridian common stock
pursuant to stock options, restricted stock programs or in other compensatory
transactions, and other special status taxpayers. Finally, a tax ruling from
the Internal Revenue Service ("IRS") has not been     
 
                                       52
<PAGE>
 
requested with respect to the merger or the other transactions described
herein, and there can be no assurance that the IRS will not assert a contrary
position. This summary is included for general information only. All ProLogis
and Meridian shareholders are urged to consult their tax advisors to determine
the specific tax consequences of the merger, including any state, local and
non-U.S. tax consequences.
   
 Tax treatment of Meridian and ProLogis     
   
  In the opinion of each of Mayer, Brown & Platt and Vinson & Elkins L.L.P.,
based on certain factual representations of Meridian and ProLogis, the merger
will be treated for federal income tax purposes as a reorganization within the
meaning of Section 368 of the Code and each of Meridian and ProLogis will be a
party to such merger within the meaning of Section 368(b) of the Code. The
discussion below assumes that the merger will be treated as a reorganization
within the meaning of Section 368 of the Code.     
 
  In the opinion of Mayer, Brown & Platt, based on certain factual
representations of Meridian and ProLogis, no income, gain or loss will be
recognized by ProLogis as a result of the merger. In the opinion of Vinson &
Elkins L.L.P., based on certain factual representations of Meridian and
ProLogis, no income gain or loss will be recognized by Meridian as a result of
the merger.
 
  In the opinion of Mayer, Brown & Platt, based on certain factual
representations of Meridian and ProLogis, no income, gain or loss will be
recognized by a holder of ProLogis common shares as a result of the merger. The
tax basis and holding period of the ProLogis common shares owned by a holder
will not change as a result of the merger.
   
 Receipt of ProLogis common shares and Series E preferred shares in exchange
 for Meridian common and preferred stock     
   
  In the opinion of Vinson & Elkins L.L.P., based on certain factual
representations of Meridian and ProLogis, no income, gain or loss will be
recognized by a holder of Meridian common stock or Meridian Series D cumulative
redeemable preferred stock who, pursuant to the merger, receives ProLogis
common shares or ProLogis Series E preferred shares, as the case may be, in
exchange for all of such holder's Meridian common stock or Meridian Series D
cumulative redeemable preferred stock, except to the extent of Cash
Consideration received. The tax basis of the ProLogis common shares or ProLogis
Series E preferred shares, as the case may be, received by a holder in such
exchange, will be equal to the tax basis of the Meridian common stock or
Meridian Series D cumulative redeemable preferred stock surrendered in exchange
therefor, decreased by the amount of cash received by such holder and increased
by (1) any amount treated as a dividend in the exchange or (2) the amount of
any gain recognized in the exchange. The holding period of the ProLogis common
shares or ProLogis Series E preferred shares received will include the holding
period of Meridian common stock or Meridian Series D cumulative redeemable
preferred stock surrendered in exchange therefor, provided that such shares
were held as capital assets of the holder at the effective time.     
   
 Treatment of cash consideration     
   
  Pursuant to the merger, ProLogis may pay, under certain circumstances, cash
consideration of up to $2.00 per share to the holders of Meridian common stock.
In general, a holder of Meridian common stock who exchanges Meridian common
stock for cash consideration and ProLogis common shares will recognize capital
gain or dividend income with respect to the cash consideration received to the
extent of such holder's gain realized in the merger or such holder's allocable
share of earnings and profits, as applicable. The determination of whether such
a holder will recognize capital gain or dividend income will be made by
reference to the rules of Sections 356(a)(2) and 302 of the Code. Under Section
356(a)(2) of the Code, each holder of Meridian common stock will be treated for
tax purposes as if such holder had received only ProLogis common shares in the
merger, and immediately thereafter ProLogis had redeemed appropriate portions
of such ProLogis common     
 
                                       53
<PAGE>
 
   
shares in exchange for the cash consideration actually distributed to such
holder in the merger. Under Section 302 of the Code, all of the cash
representing gain or loss recognized by a holder on the exchange will be taxed
as capital gain or loss if the deemed redemption from such holder is a
"substantially disproportionate redemption" of stock with respect to such
holder or is "not essentially equivalent to a dividend," taking into account,
in either case, certain constructive ownership rules described below and all
other actual and deemed redemptions from such holder and other holders of
ProLogis common shares undertaken as part of the plan of reorganization. Under
Section 318 of the Code, a holder may be considered to constructively own,
after the merger, ProLogis common shares owned and in some cases constructively
owned by certain members of the holder's family or certain entities in which
the holder has an ownership or beneficial interest and ProLogis common shares
which the holder, or such individuals or entities, has the right to acquire
upon the exercise of options. Such gain or loss will be long-term capital gain
or loss, subject to a maximum tax rate of 20%, if the holder's holding period
is more than one year at the effective time.     
 
  The deemed redemption of a holder's ProLogis common shares described in the
preceding paragraph will be a "substantially disproportionate redemption" if,
as a result of the deemed redemption, there is a greater than 20% reduction in
(1) the percentage of all then outstanding ProLogis common shares then owned by
the holder and (2) the percentage of voting power of all then outstanding
ProLogis common shares represented by all ProLogis common shares then owned by
the holder.
 
  The deemed redemption of a holder's ProLogis common shares will be "not
essentially equivalent to a dividend" if the holder experiences a "meaningful
reduction" in the holder's proportionate equity interest in ProLogis by reason
of the deemed redemption. In general, there are no fixed rules for determining
when a "meaningful reduction" has occurred. However, based upon a published
ruling of the IRS, the receipt of cash in the merger would not be characterized
as a dividend if the holder's percentage stock ownership interest in ProLogis
after the merger is minimal, the holder exercises no control over the affairs
of ProLogis, and the holder's percentage equity interest in ProLogis is reduced
in the deemed redemption to any extent.
   
  If neither of the redemption tests described above is satisfied, a holder
will be treated as having received a dividend equal to the lesser of the amount
of such holder's recognized gain, as described above and such holder's ratable
share of the accumulated earnings and profits of Meridian and ProLogis.     
   
 Backup withholding; information reporting     
   
  The cash payments, if any, due a holder upon the exchange of Meridian common
stock pursuant to the merger, other than certain exempt persons or entities,
will be subject to "backup withholding" for federal income tax purposes unless
certain requirements are met. ProLogis or a third-party paying agent, as the
case may be, must withhold 31 percent of the cash payments to such holder,
unless such holder (1) is a corporation or comes within certain other exempt
categories and, when required, demonstrates this fact, or (2) provides ProLogis
or the third-party paying agent, as the case may be, with his or her taxpayer
identification number and completes a form in which he or she certifies that he
or she has not been notified by the IRS that he or she is subject to backup
withholding as a result of a failure to report interest and dividends. The
taxpayer identification number of an individual is his or her Social Security
number. Any amount paid as backup withholding will be credited against the
holder's federal income tax liability. Holders who receive ProLogis common
shares must also comply with the information reporting requirements of the
Treasury regulations under Section 368 of the Code. In general, the Treasury
regulations under Section 368 require any taxpayer, who receives stock,
securities or other property (including cash) in a tax-free exchange in
connection with a corporate reorganization, to include with his or her income
tax return a complete statement of facts pertaining to the nonrecognition of
gain or loss including:     
   
  (1) the cost or other basis of the stock or securities transferred in the
exchange; and     
 
                                       54
<PAGE>
 
   
  (2) the amount of stock, securities or other property received in the
exchange.     
   
  In addition, the statement must include the fair market value, at the date of
the exchange, of each kind of stock, securities or other property received by
the taxpayer and taxpayers are required to keep permanent records showing the
cost or other basis of any property involved in such an exchange. All ProLogis
and Meridian shareholders are urged to consult their tax advisors to determine
the specific information that they may need to file pursuant to the Treasury
regulations under Section 368.     
   
 Consequences of the merger on ProLogis' ability to use Meridian's net
operating losses     
   
  As of the end of its taxable year ending as of the effective time, Meridian
is expected to have a net operating loss ("NOL") for federal income tax
purposes of approximately $47.3 million. Section 382 of the Code limits a
corporation's use of its NOLs and other tax attributes (the "Section 382
Limitation") if a corporation has a cumulative change in ownership of greater
than 50% within a three-year period (an "Ownership Change"). Meridian will
undergo an Ownership Change as a result of the merger, and consequently
ProLogis will be subject to the Section 382 Limitation with respect to the use
of Meridian's net operating loss. In addition, Meridian underwent an Ownership
Change in 1996 when it merged Meridian Point Realty Trust IV Co., Meridian
Point Realty Trust VI Co., and Meridian Point Realty Trust VII Co. ("the Merged
Trusts"). As a result, the ability of ProLogis to use any NOLs of Meridian or
the Merged Trusts from periods prior to the effective time will generally be
limited. Because ProLogis is a REIT under the Code and is not generally subject
to federal income tax, ProLogis does not believe the Section 382 Limitation
will have a material adverse impact on ProLogis' operations.     
   
 Consequences of the merger on ProLogis' qualification as a REIT     
   
  Based upon certain factual representations of Meridian and ProLogis and based
on the opinion of Vinson & Elkins L.L.P. that Meridian has qualified to be
taxed as a REIT under the Code for its taxable year ending as of the effective
time and for each of the taxable years ended December 31, 1995, 1996, 1997 and
1998, in the opinion of Mayer, Brown & Platt, ProLogis has qualified to be
taxed as a REIT under the Code for its taxable years ended December 31, 1993,
1994, 1995, 1996, 1997 and 1998, and the consummation of the merger will not
jeopardize the status of ProLogis as a REIT under the Code. ProLogis intends to
operate in a manner which permits it to satisfy the requirements for taxation
as a REIT under the applicable provisions of the Code, but no assurance can be
given that these requirements will be met.     
   
Accounting treatment     
 
  ProLogis will account for the merger as a purchase in accordance with
Accounting Principals Board Opinion No. 16. Accordingly, ProLogis will record
the assets and liabilities acquired from Meridian at ProLogis' cost, the
consideration paid to Meridian stockholders in the merger.
   
Restrictions on sales by affiliates     
 
  The ProLogis common shares and Series E preferred shares to be issued in the
merger will be registered under the Securities Act of 1933, as amended. Such
securities will be freely transferable under the Securities Act of 1933, except
for those issued to any person who may be deemed to be an affiliate, as such
term is defined for purposes of Rule 145 under the Securities Act of 1933, of
Meridian. Affiliates may not sell their ProLogis common shares acquired in
connection with the merger except pursuant to (1) an effective registration
 
                                       55
<PAGE>
 
statement under the Securities Act of 1933 covering such securities, (2)
paragraph (d) of Rule 145 or (3) any other applicable exemption under the
Securities Act of 1933. Meridian has agreed to use its reasonable best efforts
to procure written agreements from executive officers, directors and other
affiliates containing appropriate representations and commitments intended to
ensure compliance with Rule 145.
   
Appraisal rights     
 
  Because the ProLogis common shares and the Meridian common stock are listed
on the New York Stock Exchange, neither the ProLogis shareholders nor the
Meridian stockholders have appraisal rights under Maryland law.
 
                              THE MERGER AGREEMENT
   
ProLogis board recommendation     
 
  The members of the ProLogis board of trustees have unanimously approved and
declared advisable and recommend that the ProLogis shareholders vote "FOR" the
merger. The affirmative vote of the holders of at least two-thirds of the
ProLogis common shares entitled to be cast is required to approve the merger.
   
Meridian board recommendation     
 
  The members of the Meridian board of directors have unanimously approved the
merger and determined that the terms of the merger agreement are advisable and
fair to, and the merger is in the best interests of, Meridian and its
stockholders. Meridian's board of directors recommend that Meridian
stockholders vote "FOR" the merger. The affirmative vote of the holders of a
majority of the votes entitled to be cast by holders of Meridian common stock
is required to approve the merger proposal.
 
General
   
  The merger agreement provides for the merger of Meridian with and into
ProLogis. In the merger, the holders of Meridian common stock will receive for
each share of Meridian common stock (i) 1.10 ProLogis common shares and the
associated preferred share purchase rights and (ii) up to $2.00 in cash, if and
to the extent that the Average Trading Price for a ProLogis common share,
multiplied by 1.10, is less than $25.00. In addition, holders of Meridian's
Series D cumulative redeemable preferred stock will receive one ProLogis Series
E preferred share having substantially identical rights and preferences for
each share of Meridian Series D cumulative redeemable preferred stock. The
transaction is intended to qualify as a tax-free reorganization for federal
income tax purposes. The discussion in this joint proxy statement and
prospectus of the merger agreement and the description of the material terms of
the merger agreement are qualified in their entirety by reference to the merger
agreement, a copy of which is attached to this joint proxy statement and
prospectus as Annex A and is incorporated herein by reference.     
   
Expenses of solicitation     
   
  All fees and expenses including financial advisory and other professional
services fees, incurred in connection with the merger agreement and the
transactions contemplated thereby will be paid by the party incurring such
expenses, except for those fees and expenses incurred in connection with
filing, printing and distributing this joint proxy statement and prospectus,
which will be shared equally by ProLogis and Meridian. The costs of
solicitation of proxies from ProLogis shareholders will be borne by ProLogis.
The costs of solicitation of proxies from Meridian stockholders will be borne
by Meridian. ProLogis and Meridian will reimburse brokers, fiduciaries,
custodians and other nominees for reasonable out-of-pocket expenses incurred in
sending this joint proxy statement and prospectus and other proxy materials to,
and obtaining instructions     
 
                                       56
<PAGE>
 
   
relating to such material from, ProLogis and Meridian shareholders. ProLogis
shareholder proxies may be solicited by trustees or officers of ProLogis in
person, by letter or by telephone or telegram. Meridian stockholder proxies may
be solicited by directors or officers of Meridian in person, by letter or by
telephone or telegram. In addition, ProLogis will retain Georgeson and Company,
New York, New York, to assist in the solicitation of proxies. It is estimated
that its fees for services to ProLogis will not exceed $22,000 in the aggregate
plus expenses.     
   
  ProLogis and Meridian will also reimburse custodians, nominees and
fiduciaries for forwarding proxies and proxy materials to the beneficial owners
of its stock in accordance with regulations of the Securities and Exchange
Commission and the New York Stock Exchange.     
   
Effective time of the merger     
   
  Subject to the satisfaction, or waiver, of the other conditions to the
obligations of ProLogis and Meridian to complete the merger, the merger will be
completed as soon as practicable following the approval by the shareholders of
ProLogis and Meridian of the merger and the merger agreement at their
respective special meetings.     
   
Exchange of Meridian shares     
   
  As of the effective time, ProLogis will deposit cash in an amount sufficient
to pay the aggregate cash consideration, if any, and certificates representing
the ProLogis common shares and ProLogis Series E preferred shares to be issued
in exchange for outstanding shares of Meridian common stock and Meridian Series
D cumulative redeemable preferred stock, with a bank or trust company
designated by ProLogis and reasonably acceptable to Meridian (the "Exchange
Agent"). The deposit of the cash and certificates will be for the benefit of
the holders of shares of Meridian common stock and Meridian Series D cumulative
redeemable preferred stock, as applicable, for exchange in accordance with the
merger agreement.     
   
  As soon as reasonably practicable after the effective time, the Exchange
Agent will mail to each holder of record of a certificate or certificates
which, prior to the effective time, represented outstanding shares of Meridian
common stock or Meridian Series D cumulative redeemable preferred stock a
letter of transmittal which will specify that delivery shall be effected and
risk of loss and title to the certificates shall pass only upon delivery of the
Meridian certificates to the Exchange Agent; and instructions for surrendering
the Meridian certificates in exchange for certificates representing ProLogis
common shares or ProLogis Series E preferred shares, as the case may be. Upon
surrender of a Meridian certificate for cancellation to the Exchange Agent,
together with the Letter of Transmittal, duly executed, and any other documents
reasonably required by ProLogis or the Exchange Agent, the holder of a Meridian
certificate formerly representing shares of Meridian common stock will be
entitled to receive in exchange therefor the amount of cash consideration, if
any, and a certificate representing that number of ProLogis common shares, and
the holder of a certificate formerly representing shares of Meridian Series D
cumulative redeemable preferred stock will be entitled to receive a certificate
representing that number of ProLogis Series E preferred shares, which such
holder has the right to receive pursuant to the merger agreement, and any
unpaid ProLogis distributions and distributions with a record date after the
effective time that the holder has the right to receive. The surrendered
Meridian certificate shall be canceled.     
   
  At the effective time, each holder of an uncertificated share of Meridian
common stock will be entitled to receive the amount of cash consideration, if
any, and an initial transaction statement representing the number of ProLogis
common shares, and each holder of an uncertificated share of Meridian Series D
cumulative redeemable preferred stock will be entitled to receive an initial
transaction statement representing that number of ProLogis Series E preferred
shares, in each case, which such holder is entitled to receive in the merger.
The transaction statement with respect to the uncertificated shares of Meridian
common stock and Meridian Series D cumulative redeemable preferred stock, on
the books and records of Meridian, will then be canceled.     
 
                                       57
<PAGE>
 
   
  In the event of a transfer of ownership of Meridian common stock or Meridian
Series D cumulative redeemable preferred stock, which is not registered in the
transfer records of Meridian, the appropriate amount of cash consideration, if
any, and a certificate representing the appropriate number of ProLogis common
shares or ProLogis Series E preferred shares, as the case may be, may be paid
and issued to a transferee if the Meridian certificate is presented to the
Exchange Agent properly endorsed or accompanied by appropriate stock powers and
otherwise in proper form for transfer and accompanied by all documents required
to evidence and effect such transfer and by evidence that any applicable stock
transfer taxes have been paid. After the effective time of the merger, each
Meridian certificate will represent only the right to receive, upon surrender,
the appropriate amount of cash consideration, in the case of a certificate
representing Meridian common stock, and the certificate representing ProLogis
common shares or ProLogis Series E preferred shares, as the case may be, and
any unpaid Prologis distributions and distributions that such holder has the
right to receive. The Exchange Agent will not be entitled to vote or exercise
any rights of ownership with respect to ProLogis common shares or ProLogis
Series E preferred shares, as the case may be, it holds, except that it shall
receive and hold all dividends or other distributions paid or distributed with
respect thereto for the account of persons entitled thereto.     
   
Conditions to the merger     
 
  The respective obligations of ProLogis and Meridian to effect the merger and
the other transactions contemplated by the merger agreement are subject to the
satisfaction or waiver of each of the following conditions at or prior to the
effective time of the merger:
 
    (1) Each party shall have performed in all material respects its
  obligations contained in the merger agreement required to be performed on
  or prior to the closing of the merger as evidenced by certificates signed
  by each party's chief executive officer and chief financial officer and the
  representations and warranties of each party shall be true and correct in
  all material respects on and as of the date made and the date of the
  closing of the merger;
 
    (2) the shareholders of ProLogis shall have approved the merger and the
  matters contemplated thereby;
 
    (3) the stockholders of Meridian shall have approved the merger and the
  matters contemplated thereby;
 
    (4) the registration statement filed by ProLogis with the Securities and
  Exchange Commission shall have become effective in accordance with the
  Securities Act of 1933, and no stop order suspending such effectiveness
  shall have been issued and remain in effect and no proceeding for that
  purpose shall have been initiated or threatened by the Securities and
  Exchange Commission;
 
    (5) the ProLogis common shares and Series E preferred shares issuable as
  a result of the merger, including any shares issuable upon the exercise of
  any Meridian stock options or common stock warrants, shall have been
  authorized for listing on the New York Stock Exchange, subject to notice of
  issuance;
 
    (6) no temporary restraining order, preliminary or permanent injunction
  or other order or decree by any federal or state court or any other
  governmental entity which prevents or makes illegal the consummation of the
  merger shall have been issued and remain in effect;
 
    (7) all necessary consents, approvals, permits and authorizations
  required to be obtained by any governmental entity will have been obtained;
 
    (8) the sale of the outstanding shares of common stock of Meridian
  Refrigerated, Inc. shall have been consummated;
 
    (9) the directors and officers of Meridian shall have fully paid any and
  all loans which Meridian has guaranteed;
          
    (10) Meridian shall have received a favorable opinion from Vinson &
  Elkins L.L.P. to the effect that, for United States federal income tax
  purposes     
       
      (a) the merger will qualify as a reorganization within the meaning of
    Section 368(a) of the Code,     
 
                                       58
<PAGE>
 
       
      (b) no gain or loss will be recognized by Meridian as a result of the
    merger, and     
       
      (c) no gain or loss will be recognized by holders of Meridian common
    stock or Meridian preferred stock except to the extent cash, if any, is
    received as merger consideration or, with respect to stockholders in
    special circumstances, such as holders who acquired shares of Meridian
    common stock through the exercise of employee stock options or
    otherwise as compensation for employment;     
     
    (11) ProLogis shall have received a favorable opinion from Mayer, Brown &
  Platt to the effect that, for federal income tax purposes, the merger will
  qualify as a reorganization within the meaning of Section 368(a) of the
  Code and no gain or loss will be recognized for federal income tax purposes
  by ProLogis as a result of the merger;     
     
    (12) ProLogis shall have received a favorable opinion from Vinson &
  Elkins L.L.P. to the effect that Meridian has qualified to be taxed as a
  REIT pursuant to the Code for its taxable years ending December 31, 1995,
  1996, 1997, and 1998 and will so qualify for its taxable year ending as of
  the closing date and that each Meridian partnership is properly treated as
  a partnership and not as a "publicly traded partnership" for federal income
  tax purposes; and     
     
    (13) Meridian shall have received a favorable opinion from Mayer, Brown &
  Platt to the effect that ProLogis has qualified to be taxed as a REIT
  pursuant to the Code for its taxable years ending December 31, 1995, 1996,
  1997 and 1998 and ProLogis' present organization, ownership, method of
  operation and asset and income are such that ProLogis will so qualify for
  the taxable year in which the closing occurs.     
   
Representations and warranties     
 
  The merger agreement contains various customary representations and
warranties relating to, among other things:
 
    (1) the due organization, power, authority and standing of ProLogis and
  Meridian and similar corporate matters;
 
    (2) the capital structure of ProLogis and Meridian;
 
    (3) the authorization of the merger agreement by each party, the absence
  of any violations caused by the merger, and the required consents and
  approvals in connection with the execution of the merger;
 
    (4) the availability and accuracy of certain documents filed by ProLogis
  and Meridian with the Securities and Exchange Commission;
     
    (5) the accuracy of the information supplied by each party for inclusion
  in this joint proxy statement and prospectus;     
 
    (6) the absence of certain changes or events since information was most
  recently filed by each party with the Securities and Exchange Commission;
 
    (7) the absence of undisclosed material liabilities of either party;
 
    (8) the absence of any default by either party;
 
    (9) compliance with applicable laws by each party;
 
    (10) the absence of litigation;
 
    (11) certain matters relating to taxes;
 
    (12) pension and benefit plans of each party and their compliance with
  the laws and regulations governing such plans;
 
    (13) labor matters;
 
    (14) intangible property;
 
    (15) ownership of real properties;
 
    (16) compliance with environmental laws and other environmental matters;
 
                                       59
<PAGE>
 
    (17) maintenance of insurance;
 
    (18) the receipt of fairness opinions from each party's financial
  advisor;
 
    (19) the vote required of each party's shareholders necessary to approve
  the merger;
 
    (20) the absence of ProLogis' beneficial ownership of Meridian common
  stock or Meridian preferred stock, and the absence of Meridian's beneficial
  ownership of ProLogis common shares or debt securities;
 
    (21) the absence of broker's fees except for fees owed to Merrill Lynch,
  which represented ProLogis, and Goldman Sachs and Prudential Securities
  Incorporated, which represented Meridian;
 
    (22) the absence of a requirement for either party to register as an
  investment company under the Investment Company Act 1940;
 
    (23) the approval of amendments to Meridian's Rights Agreement and the
  exemption of the transaction from the application of Maryland antitakeover
  laws; and
 
    (24) the existence and terms of certain types of contracts of each party.
   
Certain covenants     
   
 Conduct of business prior to merger     
 
  Except as specifically required by the terms of the merger agreement or with
the written consent of the other party, ProLogis and Meridian have agreed that
they will, prior to the effective time of the merger, carry on their respective
businesses in the usual, regular and ordinary course of business consistent
with past practice and use commercially reasonable efforts to preserve intact
their present business organizations, including keeping available the services
of its current office and employees, maintaining insurance with financially
responsible insurance companies against risks and losses that are customary for
companies engaged in their respective business, and preserving their
relationships with customers, suppliers and others having business dealings
with the party, in order that their businesses shall not be impaired prior to
the effective time.
 
  In addition, except as contemplated by the merger agreement, unless the other
party has agreed in writing, ProLogis and Meridian have each agreed that they
will not, and will not permit any of their respective subsidiaries to:
 
    (1) (i) declare or pay any dividends or make other distributions in
  respect of any of their shares of beneficial interest, capital stock or
  partnership interests, except for
         
        (a) the payment of regular quarterly dividends and distributions
      to shareholders not in excess of $0.33 per share of common stock in
      the case of Meridian, and not in excess of $0.375 per common share
      in the case of ProLogis,     
         
        (b) the payment of any partnership distribution in accordance with
      the requirements of existing organizational documents, and     
         
        (c) the payment of regular quarterly cash dividends to
      stockholders of any corporations that are preferred stock
      subsidiaries of the parties;     
       
      (ii) split, combine or reclassify any of its shares of beneficial
    interest or capital stock;     
       
      (iii) repurchase, redeem or otherwise acquire any shares of its
    beneficial interest or capital stock, except as required by the terms
    of outstanding securities, or as contemplated by an existing employee
    benefit plan and except for the outstanding shares of Meridian Series B
    convertible preferred stock which will be redeemed for cash or
    converted into Meridian common stock prior to the merger in accordance
    with the terms of the Meridian Series B convertible preferred stock;
        
    (2) authorize the issuance of securities, except for the issuance of
  shares upon the exercise of options or warrants outstanding on the date of
  the merger agreement or in connection with certain identified anticipated
  transactions;
 
                                       60
<PAGE>
 
    (3) amend their organizational documents, other than as contemplated by
  the merger agreement;
 
    (4) authorize, recommend, propose or announce an intention to adopt a
  plan of complete or partial liquidation or dissolution;
 
    (5) make any changes in their accounting methods which would be required
  to be disclosed under the rules and regulations of the Securities and
  Exchange Commission, except as required by law, rule, regulation or
  generally accepted accounting practices;
 
    (6) enter into any agreement or arrangement with any affiliate, other
  than with wholly-owned subsidiaries, on terms less favorable to the
  respective party than could be reasonably expected to be obtained with an
  unaffiliated third party on an arm's length basis;
     
    (7) fail to use commercially reasonable efforts to maintain with
  financially responsible insurance companies insurance in such amounts and
  against risks and losses as are customary for companies engaged in their
  respective businesses;     
 
    (8) make or rescind any material express or deemed election relating to
  taxes, settle or compromise any material claim, action, suit, litigation,
  proceeding, arbitration, investigation, audit or controversy relating to
  taxes or change in any material respect any of its methods of reporting
  income or deductions for federal income tax purposes; or
 
    (9) grant any increases in compensation of any of their directors,
  trustees, officers or employees, except increases to employees who are not
  directors, trustees or officers made in the ordinary course of business,
  pay additional pension benefits or retirement allowances or enter into a
  new or amended material employment contract, severance or termination
  agreement or employee benefit or pension plan.
 
  Meridian has also agreed that, except as contemplated by the merger
agreement, it will not, and will not permit any of its subsidiaries to:
 
    (1) acquire or agree to acquire by merging or consolidating with or by
  purchasing any equity interest in or assets of any business, corporation,
  partnership, association or other business organization;
 
    (2) sell or otherwise dispose of, or agree to sell, or otherwise dispose
  of any of its material assets; and
 
    (3) except for certain identified transactions, incur or guarantee any
  indebtedness or issue or sell any debt securities or warrants or rights to
  acquire debt securities, except for short-term borrowings in the ordinary
  course of business consistent with past practice.
   
 Other     
 
  ProLogis and Meridian have agreed that:
 
    (1) upon reasonable notice, each will afford to the other party and its
  respective accountants, counsel, financial advisors and other
  representatives full access, during normal business hours throughout the
  period prior to the closing, to all properties, books, contracts,
  commitments and records of such party, as appropriate, and, during such
  period, each will furnish promptly to the other a copy of each document
  filed or received pursuant to the requirements of the Securities and
  Exchange Commission in connection with the transactions contemplated by the
  merger agreement, and such other information concerning its business,
  properties and personnel as shall be reasonably requested;
 
    (2) ProLogis will take any action required to be taken under applicable
  state blue sky or securities laws in connection with the merger and each
  party will furnish all information as may be reasonably requested in
  obtaining the applicable permits, approvals and registrations;
 
    (3) each will use its respective reasonable best efforts to cause to be
  delivered to the other party letters of their respective certified public
  accountants, dated a date within two business days before the date on which
  ProLogis' registration statement filed with the Securities and Exchange
  Commission becomes effective, in form and substance reasonably satisfactory
  to the other party and customary in scope and substance for comfort letters
  delivered by independent public accountants in connection with registration
  statements similar to ProLogis' registration statement;
 
                                       61
<PAGE>
 
     
    (4) as soon as practicable following the date upon which ProLogis'
  registration statement is declared effective by the Securities and Exchange
  Commission, each party will use its reasonable best efforts to obtain the
  approval of its shareholders required by the merger agreement;     
     
    (5) they will cooperate and use their respective best efforts to cause to
  be done, all things necessary or advisable under applicable laws and
  regulations, and under contracts giving rise to the required consents, to
  consummate the transactions contemplated by the merger agreement, including
  using its reasonable best efforts to identify and obtain all necessary or
  appropriate waivers, consents and approvals, to effect all necessary
  registrations and filings and to lift any injunction or other legal bar to
  the transactions contemplated by the merger agreement; and     
     
    (6) they will take such action as may be necessary or advisable to ensure
  that after the effective time, ProLogis shall select two of the current
  members of Meridian's board to be elected and serve as trustees of
  ProLogis.     
 
Distributions
 
  ProLogis and Meridian intend to continue making quarterly distributions and
dividends. ProLogis' current quarterly common share distributions are $0.3183
per ProLogis common share and its current quarterly preferred share
distributions are $0.5875 per ProLogis Series A preferred share, $0.4375 per
ProLogis Series B preferred share, $1.0675 per ProLogis Series C preferred
share and $0.495 per ProLogis Series D preferred share. Meridian's current
quarterly common stock distributions are $0.33 per share of Meridian common
stock and its current quarterly preferred stock dividends are $0.33 per share
of Meridian Series B convertible preferred stock and $0.5469 per share of
Meridian Series D cumulative redeemable preferred stock. After the effective
time of the merger, ProLogis intends to maintain its current quarterly
distribution policy and to pay stated quarterly dividends on the ProLogis
Series E preferred shares issued in the merger, subject to authorization by the
ProLogis board and the availability of funds therefor.
 
  ProLogis and Meridian have agreed to coordinate with each other the payment
of distributions with respect to ProLogis common shares and shares of Meridian
common stock after the date of the merger agreement, with the intention that
     
    (1) Meridian pay whatever preclosing distributions that shall be
  necessary to avoid jeopardizing its status as a REIT under the Code and to
  avoid paying federal income and excise taxes,     
     
    (2) the shareholders of ProLogis and stockholders of Meridian be treated
  fairly in order to avoid any "windfall" preclosing distributions, and     
     
    (3) except as may be necessary to accomplish the foregoing, holders of
  ProLogis common shares and Meridian common stock and Meridian preferred
  stock will not receive two distributions, or fail to receive one
  distribution, for any single calendar quarter with respect to their
  Meridian stock, on the one hand, and any ProLogis shares that any such
  holder receives in the merger, on the other hand.     
   
No solicitation of transactions     
   
  In the merger agreement, Meridian has agreed on its own behalf and on behalf
of its subsidiaries that:     
 
    (1) it will not initiate, solicit or encourage, directly or indirectly,
  any inquiries or the making or implementation of any proposal or offer with
  respect to a merger, acquisition, tender offer, exchange offer, sale of
  assets or similar transaction involving 10.0% of more of the assets or any
  equity securities of Meridian or any of its subsidiaries or engage in
  negotiations, provide confidential information or otherwise facilitate such
  a proposal;
 
    (2) it will use its best efforts to cause its officers, directors,
  employees, agents and financial advisors not to engage in the activities
  listed above;
 
                                       62
<PAGE>
 
    (3) it will immediately cease and cause to be terminated any existing
  discussions or negotiations with any parties regarding the foregoing; and
 
    (4) it will notify ProLogis promptly if it receives any such inquiries or
  proposals.
 
  However, the agreement does not prohibit Meridian from:
 
    (1) furnishing information concerning itself and its businesses or
  assets, pursuant to an appropriate confidentiality agreement customary
  under the circumstances, to a third party who has made an unsolicited
  alternative proposal to acquire Meridian,
 
    (2) engaging in discussions or negotiations with a third party who has
  made an unsolicited alternative proposal to acquire Meridian, and
 
    (3) following receipt of an unsolicited alternative acquisition proposal,
  taking and disclosing to its shareholders a position contemplated by Rule
  14e-2 or 14d-9 under the Securities Exchange Act of 1934, as amended, or
  otherwise making disclosure to its shareholders,
 
but in each case only if and to the extent that Meridian's board has concluded
in good faith, after consulting with and considering the advice of legal and
financial advisors, that such action could reasonably result in an acquisition
proposal that is economically superior to the terms of the merger agreement,
and Meridian has provided ProLogis with written notice of its intent to furnish
information or enter into negotiations with such third party prior to
furnishing such information or entering into negotiations and further keeps
ProLogis informed of the status of such negotiations.
 
Termination
 
  The merger agreement may be terminated at any time prior to the effective
time of the merger, whether before or after approval by the shareholders of
ProLogis and Meridian, under the following circumstances:
 
    (1) by mutual written consent of ProLogis and Meridian or by mutual
  action of their respective boards;
 
    (2) if the merger shall not have been consummated on or before July 31,
  1999;
 
    (3) any governmental entity has issued a final and non-appealable
  injunction or taken any other final action permanently restraining,
  enjoining or otherwise prohibiting the consummation of the merger;
 
    (4) the required approval of the shareholders of any party was not
  obtained because the required number of shares were not voted in favor of
  the merger; and
     
    (5) a breach by the other party of a representation, warranty, covenant
  or other agreement contained in the merger agreement which individually or
  in the aggregate would have a material adverse effect on the party and such
  a breach could not be cured with 30 days after giving written notice to the
  breaching party. This breach would also be a failure of a condition
  precedent specified in the merger agreement. This expressly includes a
  breach of either party's covenant to recommend approval of the merger which
  will be deemed a "willful breach" and would subject the breaching party to
  liability resulting from the breach.     
 
  ProLogis may unilaterally terminate the merger agreement if the Meridian
board of directors withdraws or modifies its recommendation that its
stockholders approve the merger in connection with a superior acquisition
proposal from a third party.
 
  Meridian may unilaterally terminate the merger agreement if
 
    (1) the Meridian board of directors withdraws or modifies its
  recommendation of the merger and Meridian has given ProLogis notice that it
  has received a superior acquisition proposal from a third party and
  ProLogis does not revise its acquisition proposal within five days after
  receiving such notice or the Meridian board determines that the third-party
  acquisition proposal is superior to ProLogis' revised proposal; or
 
                                       63
<PAGE>
 
    (2) the ProLogis board of trustees does not recommend against a tender or
  exchange offer for the acquisition of 50% or more of the ProLogis common
  shares by a third party or if ProLogis enters into or recommends a
  transaction involving the acquisition by a third party of 50% or more of
  the then outstanding ProLogis common shares or all or substantially all of
  the assets of ProLogis.
   
Termination fees     
 
  ProLogis will be required to pay a $25 million termination fee if Meridian
terminates the merger agreement because ProLogis fails to recommend against a
tender or exchange offer for the acquisition of 50% or more of the ProLogis
common shares by a third party or if ProLogis enters into or recommends a
transaction involving the acquisition by a third party of 50% or more of the
then outstanding ProLogis common shares or all or substantially all of its
assets.
   
  Meridian may also be required to pay a termination fee in certain
circumstances. The termination fee owed by Meridian will be $40 million, unless
Prudential Real Estate enters into a voting agreement with ProLogis, in which
case the termination fee will be $25 million. Meridian may be required to pay
the termination fee under the following circumstances:     
     
    (1) the Meridian board withdraws or changes its recommendation that the
  Meridian stockholders approve the merger pursuant to Meridian's decision to
  accept a superior acquisition proposal from a third party;     
     
    (2) ProLogis terminates the merger agreement because the Meridian board
  withdraws or changes its recommendation that Meridian stockholders approve
  the merger in connection with a superior acquisition proposal;     
 
    (3) the stockholders of Meridian fail to approve the merger, at the time
  of the vote a third-party Meridian acquisition proposal is pending and
  within 12 months of the shareholders' vote, Meridian consummates an
  acquisition proposal with any party; or
 
    (4) ProLogis terminates the merger agreement as a result of Meridian's
  material breach of the merger agreement and at the time of the termination
  a Meridian acquisition proposal is pending and, within 12 months after the
  termination, Meridian agrees to or consummates an acquisition proposal with
  any party. The termination fee payable by Meridian under these
  circumstances will be reduced by any fee already paid to ProLogis at the
  time of the termination.
 
  If the agreement is terminated by ProLogis or Meridian because of the non-
terminating party's breach of the merger agreement, the breaching party will
pay the terminating party an amount equal to the lesser of $1.25 million or the
terminating party's out-of-pocket expenses incurred in connection with the
merger agreement. In the event the merger agreement is terminated as a result
of the willful breach of the merger agreement, the breaching party shall be
fully liable to the other party for any damages resulting from the breach.
 
Indemnification
 
  ProLogis has agreed that all rights to indemnification and exculpation from
liabilities or acts or omissions occurring at or prior to the effective time of
the merger existing on the date of the merger agreement in favor of the current
or former directors or officers, or directors or officers elected prior to
closing, of Meridian and its subsidiaries as provided in their organizational
documents and any indemnification agreements or arrangements of Meridian and
its subsidiaries will survive the merger, will be assumed and performed by
ProLogis, and will continue in accordance with their terms with respect to
matters arising before the effective time of the merger. If provided in the
applicable document, ProLogis will pay any expenses of any of the foregoing
indemnified persons in advance of the final disposition of any action,
proceeding or claim relating to any act or omission to the fullest extent
permitted under Maryland law upon receipt from the indemnified person to whom
advances are to be made of an undertaking to repay such advances as required
under Maryland law. ProLogis will maintain "run-off" directors and officers
liability insurance with a coverage amount and other terms and
 
                                       64
<PAGE>
 
conditions no less favorable to the Meridian directors and officers under their
current liability insurance policy. ProLogis shall maintain such insurance
until the sixth anniversary of the effective time of the merger.
   
Amendment and waiver     
 
  The merger agreement may not be amended except in writing signed by both
ProLogis and Meridian and in compliance with applicable law. The merger
agreement may be amended before or after the approval of the ProLogis
shareholders or Meridian stockholders, provided, however, that after any such
approval the parties shall obtain such further shareholder approval as required
by applicable law. At any time prior to the closing, ProLogis or Meridian may
   
  (1) extend the time for the performance of any of the obligations of the
other party,     
   
  (2) waive any inaccuracies in the representations and warranties contained
therein or in any document delivered pursuant thereto, and     
   
  (3) waive compliance with any of the agreements or conditions contained
therein. Any agreement on the part of ProLogis and Meridian that relates to any
extension or waiver shall only be valid if it is in the form of a signed
writing.     
 
                      THE SPECIAL MEETINGS OF SHAREHOLDERS
   
The ProLogis special meeting     
   
 Purpose of the meeting     
   
  At the ProLogis special meeting, the holders of ProLogis common shares will
be asked to consider and vote upon a proposal to approve the merger and the
merger agreement.     
   
 Date, time and place; Record date     
   
  The ProLogis special meeting is scheduled to be held at the offices of
ProLogis at 14100 East 35th Place, Aurora, Colorado, at     a.m., Mountain
time, on       , March   , 1999.     
   
  The ProLogis board has fixed the close of business on       , 1999 as the
record date for the determination of holders of ProLogis common shares entitled
to notice of and to vote at the ProLogis special meeting. On January 29, 1999,
there were 123,719,351 ProLogis common shares outstanding, which were held by
approximately 1,159 record holders. Each ProLogis common share is entitled to
one vote on all matters presented for shareholder action. As of January 29,
1999, Security Capital and ProLogis' trustees and executive officers
beneficially owned an aggregate of 50,906,375 ProLogis common shares or
approximately 41.1% of the outstanding ProLogis common shares entitled to vote
on the merger, which requires a two-thirds vote. Security Capital has agreed,
subject to certain conditions, and each of such other persons has indicated
their intent to vote their ProLogis common shares in favor of the merger and
the merger agreement.     
   
 Admission     
   
  Registered owners of ProLogis common shares who plan to attend the ProLogis
special meeting in person must detach and retain the admission ticket which is
attached to the proxy card. Beneficial owners who plan to attend the ProLogis
special meeting in person may obtain admission tickets in advance by sending
written requests, along with proof of ownership, such as a bank or brokerage
firm account statement, to:     
 
      Assistant Secretary
      ProLogis Trust
      14100 East 35th Place
         
      Aurora, Colorado 80011     
 
                                       65
<PAGE>
 
   
  Record owners and beneficial owners, including the holders of valid proxies
therefrom, who do not present admission tickets at the meeting all will be
admitted upon verification of ownership at the admissions counter at the
ProLogis special meeting. Verification of ownership for record holders,
including holders of valid proxies therefrom will consist of a valid form of
personal identification, such as a driver's license or passport, and for
beneficial owners will consist of a bank or brokerage firm account statement
showing beneficial ownership as of the ProLogis record date together with a
valid form of personal identification.     
   
 Voting rights     
   
  The presence, either in person or by proxy, of the holders of a majority of
the outstanding ProLogis common shares is necessary to constitute a quorum at
the ProLogis special meeting. Assuming the existence of a quorum, the
affirmative vote of the holders of at least two-thirds of the outstanding
ProLogis common shares entitled to vote on the merger is required to approve
the merger and the merger agreement. Holders of record of ProLogis common
shares on the ProLogis record date are entitled to one vote per ProLogis common
share at the ProLogis special meeting.     
   
  If a shareholder attends the ProLogis special meeting, he or she may vote by
ballot. However, since many shareholders may be unable to attend the ProLogis
special meeting, the ProLogis board is soliciting proxies so that each holder
of ProLogis common shares on the ProLogis record date has the opportunity to
vote on the proposals to be considered at the ProLogis special meeting. When a
proxy card is returned properly signed and dated, the ProLogis common shares
represented thereby will be voted in accordance with the instructions on the
proxy card. If a shareholder does not return a signed proxy card, their
ProLogis common shares will not be voted and thus will have the effect of a
vote "against" the merger and the merger agreement. Similarly, a broker non-
vote or an abstention will have the effect of a vote "against" the merger and
the merger agreement. Shareholders are urged to mark the box on the proxy card
to indicate how their ProLogis common shares are to be voted. If a shareholder
returns a signed proxy card, but does not indicate how their ProLogis common
shares are to be voted, the ProLogis common shares represented by the proxy
card will be voted "FOR" the merger and the merger agreement. The proxy card
also confers discretionary authority on the individuals appointed by the
ProLogis board and named on the proxy card to vote the ProLogis common shares
represented thereby on any other matter that is properly presented for action
at the ProLogis special meeting. Such discretionary authority will not be used
to vote for adjournment of the ProLogis special meeting to permit further
solicitation of proxies if the shareholder votes against any proposal.     
   
  Any ProLogis shareholder who executes and returns a proxy card may revoke
such proxy at any time before it is voted by:     
     
    (1) notifying in writing the Assistant Secretary of ProLogis at 14100
  East 35th Place, Aurora, Colorado 80111,     
     
    (2) granting a subsequent proxy or     
     
    (3) appearing in person and voting at the ProLogis special meeting.
  Attendance at the ProLogis Special Meeting will not in and of itself
  constitute revocation of a proxy.     
   
 Other matters     
   
  ProLogis is not aware of any business or matter other than those indicated
above which may be properly presented at the ProLogis special meeting. If,
however, any other matter properly comes before the ProLogis special meeting,
the proxy holders will, in their discretion, vote thereon in accordance with
their best judgment.     
   
  Any proposal by a shareholder intended to be presented at the 1999 annual
meeting of shareholders must have been received by ProLogis at its principal
executive offices located at 14100 35th Place, Aurora, Colorado 80111 not later
than January 28, 1999 for inclusion in ProLogis' proxy statement and form of
proxy relating to ProLogis' 1999 annual meeting of shareholders.     
 
                                       66
<PAGE>
 
   
The Meridian special meeting     
   
 Purpose of the meeting     
   
  At the Meridian special meeting, the holders of Meridian common stock will be
asked to consider and vote upon a proposal to approve the merger and the merger
agreement.     
   
 Date, time and place; Record date     
   
  The Meridian special meeting is scheduled to be held at         ,
time, on       , March   , 1999.     
   
  The Meridian board has fixed the close of business on       , 1999 as the
record date for the determination of holders of Meridian common stock entitled
to notice of and to vote at the Meridian special meeting. On January 29, 1999
there were 33,356,508 shares of Meridian common stock outstanding, which were
held by approximately 14,700 record holders. Each share of Meridian common
stock is entitled to one vote on all matters presented for shareholder action.
As of January 29, 1999, Meridian's directors and executive officers
beneficially owned an aggregate of 2,489,864 shares of Meridian common stock or
approximately 7.5% of the outstanding Meridian common stock and, including the
17,900,930 shares of Meridian common stock owned by Prudential Real Estate and
Ameritech, approximately 61.1% of the outstanding shares of Meridian common
stock entitled to vote on the merger, which is greater than the majority vote
required to approve the merger.     
   
 Voting rights     
   
  The presence, either in person or by proxy, of the holders of a majority of
the outstanding Meridian common stock is necessary to constitute a quorum at
the Meridian special meeting. Assuming the existence of a quorum, the
affirmative vote of the holders of a majority of the outstanding shares of
Meridian common stock entitled to vote on the merger represented in person or
by proxy at the Meridian special meeting is required to approve the merger and
the merger agreement. Holders of record of Meridian common stock on the
Meridian record date are entitled to one vote per share of Meridian common
stock at the Meridian special meeting.     
   
  If a Meridian stockholder attends the Meridian special meeting, he or she may
vote by ballot. However, since many stockholders may be unable to attend the
Meridian special meeting, the Meridian board is soliciting proxies so that each
holder of Meridian common stock on the Meridian record date has the opportunity
to vote on the merger and any other proposals to be considered at the Meridian
special meeting. When a proxy card is returned properly signed and dated, the
Meridian common stock represented thereby will be voted in accordance with the
instructions on the proxy card. If a Meridian stockholder does not return a
signed proxy card, their Meridian common stock will not be voted and thus will
have the effect of a vote "against" the merger and the merger agreement.
Similarly, a broker non-vote or an abstention will have the effect of a vote
"against" the merger and the merger agreement. Meridian stockholders are urged
to mark the box on the proxy card to indicate how their shares of Meridian
common stock is to be voted. If a Meridian stockholder returns a signed proxy
card, but does not indicate how their Meridian common stock is to be voted, the
Meridian common stock represented by the proxy card will be voted "FOR" the
merger and the merger agreement. The proxy card also confers discretionary
authority on the individuals appointed by the Meridian board and named on the
proxy card to vote the Meridian common stock represented thereby on any other
matter that is properly presented for action at the Meridian special meeting.
Such discretionary authority will not be used to vote for adjournment of the
Meridian special meeting to permit further solicitation of proxies if the
stockholder votes against the approval of the merger.     
 
  Any Meridian stockholder who executes and returns a proxy card may revoke
such proxy at any time before it is voted by
     
    (1) notifying in writing the Secretary of Meridian at 455 Market Street,
  17th Floor, San Francisco, California 94105,     
     
    (2) granting a subsequent proxy or     
     
    (3) appearing in person and voting at the Meridian special meeting.
  Attendance at the Meridian special meeting will not in and of itself
  constitute revocation of a proxy.     
 
                                       67
<PAGE>
 
   
 Other Matters     
   
  Meridian is not aware of any business or matter other than the proposal to
approve the merger which may be properly presented at the Meridian special
meeting. If, however, any other matter properly comes before the Meridian
special meeting, the proxy holders will, in their discretion, vote thereon in
accordance with their best judgment.     
   
  Any proposal by a stockholder intended to be presented at the 1999 annual
meeting of stockholders must have been received by Meridian at its principal
executive offices located at 455 Market Street, 17th Floor, San Francisco,
California 94105 not later than December 18, 1998 for inclusion in Meridian's
proxy statement and form of proxy relating to Meridian's 1999 annual meeting of
stockholders.     
 
                        COMPARISON OF SHAREHOLDER RIGHTS
   
  Meridian is organized as a Maryland corporation and ProLogis is organized as
a real estate investment trust under the laws of the State of Maryland. As a
Maryland corporation, Meridian is subject to the Maryland General Corporation
Law ("MGCL"), which is a general corporation statute dealing with a wide
variety of matters, including election, tenure, duties, liabilities and
indemnification of directors and officers, dividends and other distributions,
meetings and voting rights of stockholders, and extraordinary actions, such as
amendments to the charter, mergers, sales of all or substantially all of the
assets and dissolution. As a Maryland real estate investment trust, ProLogis is
governed by Title 8 of the Corporations and Associations Article of the
Annotated Code of Maryland ("Title 8") and certain other provisions of the
Annotated Code of Maryland. Title 8 covers some of the same matters covered by
the MGCL, including liabilities of the trust, shareholders, trustees and
officers, amendment of the declaration of trust, and mergers of a real estate
investment trust with other entities. There are many matters that are addressed
in the MGCL that are not dealt with in Title 8, and it is the general practice
of real estate investment trusts to address some of these matters through
provisions in the declaration of trust or bylaws.     
 
  Certain differences between (a) the MGCL and Title 8 and (b) the Meridian
charter and Meridian bylaws and the ProLogis declaration of trust and bylaws
are discussed below. However, the discussion of the comparative rights of
stockholders of Meridian and shareholders of ProLogis set forth below does not
purport to be complete and is subject to and qualified in its entirety by
reference to the MGCL and Title 8 and also to the Meridian charter and Meridian
bylaws and the ProLogis declaration of trust and ProLogis bylaws.
   
Authorized and issued shares     
   
  Under the ProLogis declaration of trust, the maximum number of shares of
beneficial interest that ProLogis is currently authorized to issue is
230,000,000. There are currently 148,420,101 shares of beneficial interest
outstanding, including ProLogis common shares and preferred shares, and
19,182,339 shares of beneficial interest reserved for issuance pursuant to
convertible securities or options which have been granted. After the merger
there will be 188,035,039 shares of beneficial interest outstanding, including
161,334,289 ProLogis common shares and the 2,000,000 ProLogis Series E
preferred shares.     
   
  The Meridian charter authorizes the issuance of 100,000,000 shares of common
stock and 25,000,000 shares of preferred stock, and the Meridian board of
directors may classify any unissued shares of preferred stock and reclassify
any previously classified but unissued shares of preferred or unissued shares
of common stock of any series from time to time, in one or more series of
stock. Currently Meridian has issued and outstanding 33,356,508 shares of
common stock, 1,623,376 shares of Meridian Series B convertible preferred
stock, 2,000,000 shares of Meridian Series D cumulative redeemable preferred
stock and has authorized 150,000 shares of Meridian Series C junior
participating preferred stock, $.001 par value per share.     
 
                                       68
<PAGE>
 
   
Special meeting     
 
  The ProLogis declaration of trust provides that a majority of the trustees, a
majority of the Independent Trustees, as defined, or any officer of ProLogis
may call a special meeting of ProLogis' shareholders and that such a meeting
shall be called upon the written request of shareholders holding 10% of the
outstanding shares entitled to vote. An "Independent Trustee" means a trustee
who
   
  (1) is not an affiliate of ProLogis,     
   
  (2) is not serving as a trustee or director of more than three real estate
investment trusts organized by a sponsor of ProLogis and     
          
  (3) does not perform any other service for ProLogis, other than as trustee.
    
  The Meridian bylaws provide that the chairman of the Meridian board, if a
chairman has been appointed, or the board of directors may call a special
meeting of Meridian's stockholders. A special meeting shall also be called upon
the written request of stockholders entitled to cast not less than 10% of all
the votes entitled to be a cast at the meeting.
   
ProLogis board/ Meridian board     
 
  Pursuant to the ProLogis declaration of trust, the ProLogis board of trustees
is divided into three classes with terms of three years, with the term of one
class of trustees expiring at the annual meeting of shareholders in each year.
Each trustee will hold office for the term for which he or she is elected and
until his or her successor is elected and qualifies, or until his or her
resignation, removal or death. Trustees may succeed themselves in office. The
ProLogis declaration of trust provides that a trustee may be removed with or
without cause, by the affirmative vote of the holders of two-thirds of the
outstanding shares or by two-thirds of the trustees then in office.
 
  The Meridian board is not divided into classes. Section 2-406(a) of the MGCL
provides that unless the charter of a corporation provides otherwise (which the
Meridian charter does not), the stockholders of a corporation may remove any
director, with or without cause, by the affirmative vote of a majority of all
the votes entitled to be cast for the election of directors. Pursuant to the
Meridian charter, each director of Meridian holds office until the next annual
meeting of shareholders and until his or her successor is elected and
qualified, or until his or her resignation, removal, or death.
   
Standard of conduct for trustees and directors     
   
  Title 8 contains no statutory standard of conduct for trustees of a Maryland
real estate investment trust such as ProLogis. In the absence of statutory
provisions establishing standards of conduct for trustees of Maryland real
estate investment trusts, it is possible, though not certain, that the Maryland
courts would look, by analogy, to the MGCL for guidance. In addition, the
ProLogis declaration of trust provides that in defining or interpreting the
powers and duties of the trustees, reference may be made to the MGCL, to the
extent appropriate and not inconsistent with the Code or Title 8.     
 
  The MGCL requires a director of a Maryland corporation, such as Meridian, to
perform his or her duties as a director in good faith, in a manner he or she
reasonably believes to be in the best interest of the corporation, and with the
care that an ordinarily prudent person in a like position would use under
similar circumstances.
 
                                       69
<PAGE>
 
   
Board committees     
   
  Title 8 contains no provision for or limitation on the composition of or
delegation of powers to committees of the board of trustees of a Maryland real
estate investment trust, such as ProLogis. Under the ProLogis declaration of
trust, the ProLogis board may designate one or more committees which shall
consist of one or more trustees. Such committees shall have and may exercise
such powers as shall be conferred or authorized by the ProLogis board. The
ProLogis declaration of trust provides that the ProLogis bylaws, or a majority
of the trustees, may authorize any one or more of the trustees, or any one or
more of the officers or employees or agents of ProLogis, on behalf of ProLogis,
to exercise and perform any and all powers granted to the ProLogis board, and
to discharge any and all duties imposed on the ProLogis board, and to do any
acts and to execute any instruments deemed by such person or persons to be
necessary or appropriate to exercise such power or to discharge such duties,
and to exercise his own sound judgment in so doing. The     
   
authority to act upon any transaction which requires the vote of a majority of
the Independent Trustees may not be delegated to a committee.     
 
  The MGCL permits the board to delegate to a committee of one or more
directors any of its power, except the powers to authorize dividends, issue
stock in certain situations, recommend to the stockholders except any action
which requires stockholder approval, amend the bylaws or approve any merger or
share exchange which does not require stockholder approval. The Meridian bylaws
permit the board to delegate to committees any powers of the board, except as
prohibited by law.
   
Amendment of declaration of trust     
   
  Title 8 requires the approval of shareholders of a Maryland real estate
investment trust, such as ProLogis, for any amendment to the declaration of
trust, with certain exceptions. As permitted by Title 8, the ProLogis
declaration of trust permits the ProLogis board, by a two-thirds vote, to amend
the ProLogis declaration of trust from time to time to qualify as a REIT under
the Code or under Title 8.     
 
  The MGCL requires the approval of stockholders of a Maryland corporation,
such as Meridian, for any amendment to the charter, except for minor changes in
the corporate name.
   
Dividends and other distributions     
   
  Title 8 contains no limitation on the payment of dividends or other
distributions by a Maryland real estate investment trust, such as ProLogis. The
ProLogis declaration of trust allows the trustees to declare and pay to
shareholders such dividends or distributions as the trustees, in their
discretion, shall determine and requires the trustees to endeavor to declare
and pay such dividends and distributions as shall be necessary for ProLogis to
qualify as a REIT under the Code, so long as such qualification is, in the
opinion of the trustees, in the best interests of the shareholders.     
 
  The MGCL provides that no dividend or other distribution may be paid to
stockholders of a Maryland corporation, such as Meridian, unless, after payment
of the distribution, the corporation is able to pay its debts as they become
due in the usual course of business and the corporation's total assets at least
equal the sum of its liabilities and, unless the charter permits otherwise, the
amount that would be needed to satisfy the preferential rights on dissolution
of stockholders whose preferential rights on dissolution are superior to those
of the stockholders receiving the distribution. The Meridian charter does not
so permit, except to a limited extent, with respect to the Series D cumulative
redeemable preferred stock.
 
                                       70
<PAGE>
 
   
Maryland asset requirements     
   
  Title 8 requires that as a Maryland real estate investment trust, ProLogis
hold, either directly or indirectly, at least 75% of the value of its assets in
the form of real estate assets, mortgages or mortgage related securities,
government securities, cash and cash equivalent items, including high-grade
short term securities and receivables. Title 8 also prohibits a Maryland real
estate investment trust from using or applying land for farming, agricultural,
horticulture or similar purposes.     
 
  There is no such requirement for a Maryland corporation, such as Meridian.
   
ProLogis declaration of trust     
   
 Restrictions on ProLogis Operations     
   
  The ProLogis declaration of trust contains extensive limitations on ProLogis'
ability to undertake certain actions, which restrictions are not applicable to
Meridian. The ProLogis declaration of trust provides that ProLogis may not:
       
    (1) invest or trade in commodities or commodity contracts;     
     
    (2) invest more than 25% of its total assets in unimproved real property,
  excluding property which is being developed or will be developed within a
  reasonable period;     
     
    (3) invest in junior mortgage loans unless, by appraisal or other method
  that the Independent Trustees determine,     
       
      (a) the capital invested in such mortgage loan is adequately secured
    on the basis of the equity of the borrower in the property underlying
    such investment and the ability of the borrower to repay the mortgage
    loan, or     
       
      (b) such mortgage loan is a financing device entered into by ProLogis
    to establish the priority of its capital investment over the capital
    invested by others investing with ProLogis in a real estate project;
           
    (4) issue warrants or options to purchase its securities to the ProLogis
  trustees or sponsors of ProLogis or any of their affiliates in an amount
  exceeding 10% of the outstanding shares of ProLogis on the date of the
  grant of any options or warrants;     
     
    (5) compensate any independent contractor employed by ProLogis at a rate
  higher than the going rate, if any, for like services in the community or
  locale in which such services are performed;     
     
    (6) make or invest in mortgage loans, including construction loans, on
  any one property if the aggregate amount of all mortgage loans outstanding
  on the property, including the loans of ProLogis, would exceed an amount
  equal to 85% of the fair market value of the property as determined by the
  trustees of ProLogis unless substantial justification exists because of the
  presence of other underwriting criteria;     
     
    (7) make or invest in any mortgage loans that are subordinate to any
  mortgage or equity interest of the trustees, sponsors or affiliates of
  ProLogis; and     
     
    (8) invest in land sale contracts, unless such contracts of sale are in
  recordable form and are appropriately recorded in the chain of title.     
 
 
                                       71
<PAGE>
 
  Additionally, the ProLogis declaration of trust provides that the aggregate
borrowing of ProLogis, secured and unsecured, may not be unreasonable in
relation to the net assets of ProLogis and must be reviewed by the ProLogis
board at least quarterly. The ProLogis declaration of trust provides that the
maximum amount of such borrowing in relation to the net assets may, in the
absence of a satisfactory showing that a higher level of borrowing is
appropriate, not exceed 300%. Any excess in borrowing over such 300% level must
be approved by a majority of the Independent Trustees and disclosed to
shareholders in the next quarterly report of ProLogis, along with justification
for such excess. The term "net assets" means the total assets (other than
intangibles) at cost, before deducting depreciation or other non-cash reserves,
less total liabilities, calculated at least quarterly on a basis consistently
applied.
 
  The ProLogis declaration of trust further provides that "Total Operating
Expenses," as defined, of ProLogis shall, in the absence of a satisfactory
showing to the contrary, not exceed in any fiscal year the greater of: (a) 2%
of the average of the aggregate book value of the assets of ProLogis invested,
directly, or indirectly, in equity interests in and loans secured by real
estate, before reserves for depreciation or bad debts or other similar non-cash
reserves, computed by taking the average of such values at the end of each
month during such period or (b) 25% of the Net Income of ProLogis for such
year. "Net Income" means total revenues applicable to such year, less the
expenses applicable to such year other than additions to reserves for
depreciation or bad debts or other similar non-cash reserves. For the purposes
of the foregoing, "Net Income" excludes the gain from the sale of ProLogis'
assets. "Total Operating Expenses" means all operating, general and
administrative expenses of ProLogis as determined under GAAP except the
expenses of raising capital, interest payments, taxes, non-cash expenditures
and costs related directly to asset acquisition, operation and disposition. The
Independent Trustees have the fiduciary responsibility of limiting such
expenses to amounts that do not exceed such limitations unless the Independent
Trustees have made a finding that, based on such unusual and non-recurring
factors which they deem sufficient, a higher level of expenses is justified for
such year. Any such findings and the reasons in support thereof must be
reflected in the minutes of the meeting of the trustees.
 
  The ProLogis declaration of trust provides that, within 60 days after the end
of any fiscal quarter of ProLogis for which Total Operating Expenses, for the
12 months then ended, exceeded 2% of the average aggregate book value of the
assets, as calculated above, or 25% of Net Income, whichever is greater, there
must be sent to the shareholders of ProLogis a written disclosure of such fact.
If the Independent Trustees find that such higher operating expenses are
justified, such disclosure must be accompanied by an explanation of the facts
the Independent Trustees considered in arriving at the conclusion that such
higher operating expenses were justified.
   
 Restrictions on Related Party Transactions     
   
  The ProLogis declaration of trust provides that ProLogis may not purchase
property from a sponsor, trustee, or affiliates thereof. ProLogis shall not
enter into any other principal transaction including without limitation, the
sale of property, the making of loans, borrowing money, or investing in joint
ventures with the sponsor, trustee or affiliate thereof, except for emergency
loans approved by a majority of the Independent Trustees not otherwise
interested in such transaction as being fair and reasonable to ProLogis and on
terms and conditions not less favorable to ProLogis than those available from
unaffiliated third parties. ProLogis may employ affiliates of the trustees to
perform services, provided such services are at market rates for like services
and a majority of the Independent Trustees not otherwise interested in such
services approve the services as being fair and reasonable to ProLogis.     
 
                                       72
<PAGE>
 
                       DESCRIPTION OF PROLOGIS SECURITIES
   
Common shares     
   
 General     
   
  ProLogis' declaration of trust, as amended, authorizes ProLogis to issue up
to 230,000,000 shares of beneficial interest, par value $0.01 per share,
consisting of common shares, preferred shares, and such other types or classes
of shares of beneficial interest as the board of trustees may create and
authorize from time to time. At January 29, 1999, approximately 123,719,351
common shares were issued and outstanding and held of record by approximately
1,159 shareholders.     
 
  The declaration of trust authorizes the trustees to classify or reclassify
any unissued series of common shares or preferred shares by setting or changing
the preferences, conversion or other rights, voting powers, restrictions,
limitations as to distributions, qualifications or terms or conditions of
redemption.
 
  The following description sets forth certain general terms and provisions of
the common shares. The statements below describing the common shares are in all
respects subject to and qualified in their entirety by reference to the
applicable provisions of ProLogis' declaration of trust and bylaws, as amended.
   
  The outstanding common shares are fully paid and, except as set forth below
under "--Shareholder liability," non-assessable. Each common share entitles the
holder to one vote on all matters requiring a vote of shareholders, including
the election of trustees. Holders of common shares do not have the right to
cumulate their votes in the election of trustees, which means that the holders
of a majority of the outstanding common shares can elect all of the trustees
then standing for election. Holders of common shares are entitled to such
distributions as may be declared from time to time by the ProLogis board out of
funds legally available therefor. Holders of common shares have no conversion,
redemption, preemptive or exchange rights to subscribe to any securities of
ProLogis. In the event of a liquidation, dissolution or winding up of the
affairs of ProLogis, the holders of the common shares are entitled to share
ratably in the assets of ProLogis remaining after provision for payment of all
liabilities to creditors and payment of liquidation preferences and accrued
dividends, if any, on the Series A preferred shares, Series B preferred shares,
Series C preferred shares, Series D preferred shares, and Series E preferred
shares, and subject to the rights of holders of other series of preferred
shares, if any. The right of holders of the common shares are subject to the
rights and preferences established by the board for the Series A preferred
shares, Series B preferred shares, Series C preferred shares, Series D
preferred shares, and Series E preferred shares and any other series of
preferred shares which may subsequently be issued by ProLogis.     
   
 Transfer agent     
   
  The transfer agent and registrar for the ProLogis common shares is
BankBoston, N.A., 150 Royall Street, Canton, Massachusetts 02021. The ProLogis
common shares are listed on the New York Stock Exchange under the symbol "PLD."
       
 Trustee liability     
 
  ProLogis' declaration of trust provides that trustees shall not be
individually liable for any obligation or liability incurred by or on behalf of
ProLogis or by the trustees for the benefit and on behalf of ProLogis. Under
Maryland law governing REITs, trustees are not personally liable for the
obligations of the real estate investment trust except that if otherwise
liable, trustees are not relieved from liability for acts or omissions which
constitute bad faith, willful misfeasance, or gross negligence in the conduct
of his or her duties.
 
                                       73
<PAGE>
 
   
 Shareholder liability     
   
  Both Maryland statutory law governing REITs organized under the laws of that
state and the ProLogis declaration of trust provide that shareholders shall not
be personally or individually liable for any debt, act, omission or obligation
of ProLogis or the ProLogis board. The declaration of trust further provides
that ProLogis shall indemnify and hold each shareholder harmless from all
claims and liabilities to which the shareholder may become subject by reason of
their being or having been a shareholder and that ProLogis shall reimburse each
shareholder for all legal and other expenses reasonably incurred by the
shareholder in connection with any such claim or liability, except to the
extent that such claim or liability arises out of the shareholder's bad faith,
willful misconduct or gross negligence and provided that such shareholder gives
ProLogis prompt notice of any such claim or liability and permits ProLogis to
conduct the defense thereof. In addition, ProLogis is required to, and as a
matter of practice does, insert a clause in its management and other contracts
providing that shareholders and trustees assume no personal liability for
obligations entered into on behalf of ProLogis. Nevertheless, with respect to
tort claims, contractual claims where shareholder liability is not so negated,
claims for taxes and certain statutory liability, the shareholders may, in some
jurisdictions, be personally liable to the extent that such claims are not
satisfied by ProLogis. Inasmuch as ProLogis carries public liability insurance
which it considers adequate, any risk of personal liability to shareholders is
limited to situations in which ProLogis' assets plus its insurance coverage
would be insufficient to satisfy the claims against ProLogis and its
shareholders.     
   
 Restrictions on size of holdings     
 
  ProLogis' declaration of trust restricts beneficial ownership of ProLogis'
outstanding shares of beneficial interest by a single person, or persons acting
as a group, to 9.8% of such shares (the "Ownership Limit"). The purposes of the
Ownership Limit are to assist in protecting and preserving ProLogis' REIT
status and to protect the interest of shareholders in takeover transactions by
preventing the acquisition of a substantial block of shares unless the acquiror
makes a cash tender offer for all outstanding shares. For ProLogis to qualify
as a REIT under the Code, not more than 50% in value of its outstanding shares
of beneficial interest may be owned by 5 or fewer individuals at any time
during the last half of any taxable year. The Ownership Limit permits 5 persons
to acquire up to a maximum of 9.8% each, or an aggregate of 49% of the
outstanding shares, and, thus, assists the ProLogis board in protecting and
preserving ProLogis' REIT status for tax purposes. The Ownership Limit does not
apply to Security Capital, which counts as numerous holders for purposes of the
tax rule, because its shares are attributed to its shareholders for purposes of
this rule.
 
  Shares of beneficial interest owned by a person or group of persons other
than Security Capital in excess of 9.8%, or in excess of 30% in the aggregate
in the case of certain shareholders who acquired shares prior to ProLogis'
initial public offering, of the outstanding shares of beneficial interest (the
"Excess Shares") are subject to redemption by ProLogis, at its option, upon 30
days' notice, at a price equal to the average daily per share closing sale
price during the 30-day period ending on the business day prior to the
redemption date. ProLogis may make payment of the redemption price at any time
or times up to the earlier of 5 years after the redemption date or the
liquidation of ProLogis. ProLogis may refuse to effect the transfer of any
shares of beneficial interest which would make the transferee a holder of
Excess Shares. Shareholders of ProLogis are required to disclose, upon demand
of the ProLogis board, such information with respect to their direct and
indirect ownership of shares of ProLogis as the ProLogis board deems necessary
to comply with the provisions of the Code pertaining to qualification, for tax
purposes, of REITs, or to comply with the requirements of any other appropriate
taxing authority.
 
  The Ownership Limit does not apply to acquisitions by an underwriter in a
public offering or to any transaction involving the issuance of shares of
beneficial interest, or securities convertible into shares, in which a majority
of the ProLogis board determines that the underwriter or other person initially
acquiring the shares will make a timely distribution thereof to or among other
holders such that, after the distribution, none of the shares will be Excess
Shares. Security Capital's ownership of shares is attributed for tax purposes
to its shareholders. The ProLogis board has exempted Security Capital from the
Ownership Limit and has permitted certain other shareholders who acquired
shares prior to ProLogis' initial public offering to acquire up to 30% of the
outstanding shares of beneficial interest.
 
                                       74
<PAGE>
 
   
Preferred share purchase rights     
 
  On December 7, 1993, the ProLogis board declared a dividend of one preferred
share purchase right (a "Purchase Right") for each common share outstanding,
payable to holders of common shares of record at the close of business on
December 31, 1993. The holders of any additional common shares issued after
such date and before the redemption or expiration of the Purchase Rights are
also entitled to receive one Purchase Right for each such additional common
share. Each Purchase Right entitles the holder under certain circumstances to
purchase from ProLogis one one-hundredth of a share of Series A junior
participating preferred shares, par value $0.01 per share (the "Participating
Preferred Shares"), at a price of $40.00 per one one-hundredth of a
Participating Preferred Share, subject to adjustment. Purchase Rights are
exercisable when a person or group of persons, other than Security Capital,
acquires 20% or more of the outstanding common shares. Under certain
circumstances, each Purchase Right entitles the holder to purchase, at the
Purchase Right's then current exercise price, a number of ProLogis common
shares having a market value of twice the Purchase Right's exercise price. The
acquisition of ProLogis pursuant to certain mergers or other business
transactions would entitle each holder to purchase, at the Purchase Right's
then current exercise price, a number of the acquiring company's common shares
having a market value equal to twice the Purchase Right's exercise price. The
Purchase Rights held by certain 20% shareholders, other than Security Capital,
would not be exercisable. The Purchase Rights will expire on December 7, 2003,
and are subject to redemption in whole, but not in part, at a price of $0.01
per Purchase Right payable in cash, shares of ProLogis, or any other form of
consideration specified by the ProLogis board.
   
Staggered board of trustees     
 
  ProLogis' declaration of trust divides the ProLogis board of trustees into
three classes of trustees, with each class constituting approximately one-third
of the total number of trustees and with classes serving staggered three-year
terms. The classification of trustees will have the effect of making it more
difficult for shareholders to change the composition of the ProLogis board.
ProLogis believes, however, that the longer time required to elect a majority
of a classified ProLogis board helps to insure continuity and stability of
ProLogis' management and policies.
 
  The classification provisions could also have the effect of discouraging a
third party from accumulating large blocks of ProLogis' shares or attempting to
obtain control of ProLogis, even though such an attempt might be beneficial to
ProLogis and its shareholders. Accordingly, shareholders could be deprived of
certain opportunities to sell their beneficial shares at a higher market price
than they might otherwise receive.
   
Certain provisions of Maryland law     
   
 Business combinations     
   
  Under Maryland law, certain "business combinations," including a merger,
consolidation, share exchange, or, in certain circumstances, an asset transfer
or issuance or reclassification of equity securities, between a Maryland real
estate investment trust and any person who beneficially owns 10% or more of the
voting power of the trust's shares or an affiliate or associate of the trust
who, at any time within the two-year period prior to the date in question, was
the beneficial owner of 10% or more of the voting power of the trust's shares
(an "Interested Shareholder") or an affiliate thereof are prohibited for five
years after the most recent date on which the Interested Shareholder becomes an
Interested Shareholder. Thereafter, any such business combination must be     
     
  (1) recommended by the board of trustees of such trust and     
     
  (2) approved by the affirmative vote of at least     
     
    (a) 80% of the votes entitled to be cast by holders of outstanding voting
  shares of the trust and     
 
                                       75
<PAGE>
 
     
    (b) two-thirds of the votes entitled to be cast by holders of outstanding
  voting shares other than shares held by the Interested Shareholder with
  whom the business combination is to be effected or by an affiliate or
  associate thereof, voting together as a single group,     
   
unless, among other things, the trust's common shareholders receive a minimum
price, as defined in the statute, for their shares and the consideration is
received in cash or in the same form as previously paid by the Interested
Shareholder for his shares. These provisions of Maryland law do not apply,
however, to business combinations that are approved or exempted by the board of
trustees of the trust prior to the time that the Interested Shareholder becomes
an Interested Shareholder. ProLogis' declaration of trust and bylaws contained,
prior to Security Capital becoming an Interested Shareholder, provisions
exempting Security Capital and its affiliates and successors from the
provisions of the business combination statute.     
   
 Control share acquisitions     
   
  Maryland law provides that "Control Shares," defined below, of a Maryland
real estate investment trust acquired in a "Control Share Acquisition," have no
voting rights except to the extent approved by a vote of two-thirds of the
votes entitled to be cast on the matter, excluding shares of beneficial
interest owned by the acquiror or by officers or trustees who are employees of
the trust. "Control Shares" are voting shares of beneficial interest which, if
aggregated with all other such shares of beneficial interest previously
acquired by the acquiror or in respect of which the acquiror is able to
exercise voting power in electing trustees, fall within one of the following
ranges of voting power:     
     
    (1) one-fifth or more but less than one-third,     
     
    (2) one-third or more but less than a majority, or     
     
    (3) a majority of all voting power.     
   
  Control Shares do not include capital stock the acquiring person is then
entitled to vote as a result of having previously obtained shareholder
approval. A "Control Share Acquisition" means the acquisition of Control
Shares, subject to certain exceptions.     
 
  A person who has made or proposes to make a Control Share Acquisition, upon
satisfaction of certain conditions, including an undertaking to pay expenses,
may compel the board of trustees of the trust to call a special meeting of
shareholders to be held within 50 days of a demand to consider voting rights
for the shares. If no request for a meeting is made, the trust may itself
present the question at any shareholders meeting.
 
  If voting rights are not approved at the meeting or if the acquiring person
does not deliver an acquiring person statement as is required by the statute,
then, subject to certain conditions and limitations, the trust may redeem any
or all of the Control Shares, except those for which voting rights have
previously been approved, for fair value determined, without regard to the
absence of voting rights for the Control Shares, as of the date of the last
Control Share Acquisition by the acquiror or of any meeting of shareholders at
which the voting rights of such shares are considered and not approved. If
voting rights for Control Shares are approved at a shareholders' meeting and
the acquiror becomes entitled to vote a majority of the shares of beneficial
interest entitled to vote, all other shareholders may exercise appraisal
rights. The fair value of the shares of beneficial interest as determined for
purposes of such appraisal rights may not be less than the highest price per
share paid by the acquiror in the Control Share Acquisition.
 
  The Control Share Acquisition statute does not apply to shares acquired in a
merger, consolidation or share exchange if the trust is a party to the
transaction, or to acquisitions approved or exempted by the declaration of
trust or bylaws of the trust.
   
  ProLogis' bylaws contain provisions exempting Security Capital and its
affiliates and successors from the provisions of the Control Share Acquisition
statute.     
       
                                       76
<PAGE>
 
   
Series E preferred shares     
 
 General
   
  The summary of certain terms and provisions of the Series E preferred shares
set forth below does not purport to be complete and is subject to, and is
qualified in its entirety by reference to, the terms and provisions of
ProLogis' declaration of trust and bylaws, as amended. A copy of the ProLogis
articles supplementary has been filed as an exhibit to the registration
statement of which this joint proxy statement and prospectus forms a part.     
 
  Subject to limitations prescribed by Maryland law and ProLogis' declaration
of trust, ProLogis' board of trustees is authorized to provide for the
issuance, from the authorized but unissued shares of beneficial interest of
ProLogis, of preferred shares in such series as the ProLogis board may
authorize, and the board is further authorized to establish from time to time
the number of shares to be included in any such series and to fix the
designation and any preferences, conversion and other rights, voting powers,
restrictions, limitations as to dividends, qualifications and terms and
conditions of redemption of the shares of each series.
 
  When issued, the Series E preferred shares will be validly issued, fully
paid, and nonassessable. The holders of the Series E preferred shares will have
no preemptive rights with respect to any shares of beneficial interest of
ProLogis or any other securities of ProLogis convertible into or carrying
rights or options to purchase any such shares. The Series E preferred shares
will not be subject to any sinking fund or other obligation of ProLogis to
redeem or retire the Series E preferred shares.
 
  The transfer agent, registrar and dividend disbursing agent for the Series E
preferred shares is BankBoston, N.A., 150 Royall Street, Canton, Massachusetts
02021.
 
 Ranking
   
  With respect to payment of dividends and amounts upon liquidation,
dissolution or winding up, the Series E preferred shares will rank senior to
ProLogis' Participating Preferred Shares and on a parity with all other series
of preferred shares of ProLogis and senior to the common shares.     
   
  While any Series E preferred shares are outstanding, ProLogis may not
authorize, create or increase the authorized number of shares of any class, or
of any securities convertible into shares of any class, of security that ranks
senior to the Series E preferred shares with respect to the payment of
dividends or amounts payable upon liquidation, dissolution, or winding up,
without the affirmative vote of the holders of two-thirds of the outstanding
Series E preferred shares and "Parity Shares", as defined below, voting as a
single class, unless provision is made for the redemption of all outstanding
Series E preferred shares. However, ProLogis may create additional classes of
other stock, increase the authorized number of preferred shares, or issue
series of preferred shares ranking on a parity with the Series E preferred
shares with respect, in each case, to the payment of dividends and amounts upon
liquidation, dissolution, and winding up (a "Parity Share") without the consent
of any holder of Series E preferred shares. See "--Voting rights" below.     
   
 Dividends     
 
  Holders of the Series E preferred shares will be entitled to receive, when
and as declared by the board of trustees, out of funds legally available for
the payment of dividends, cumulative preferential cash dividends at the rate of
8.75% of the liquidation preference per annum per share, equivalent to $2.1875
per share per annum. Such dividends will be cumulative and payable quarterly in
arrears on the last calendar day, or, if such day is not a business day, the
next business day, of each January, April, July and October (each, a "Dividend
Payment Date"). The first dividend, which will be paid on or about April 30,
1999, will be for a full quarter unless a partial dividend was declared and
paid by Meridian prior to the merger, in which case, the first dividend will be
for the period beginning after the merger. Such first dividend and any
dividends payable on the Series E preferred shares for any partial dividend
period will be computed on the basis of the actual number
 
                                       77
<PAGE>
 
of days in such period. Dividends will be payable to holders of record as they
appear in the records of ProLogis at the close of business on the applicable
record date, which will be the date designated as such by the board of trustees
that is not more than 50 nor less than 10 days prior to such Dividend Payment
Date (each, a "Dividend Record Date"). Accrued and unpaid dividends for any
past dividend periods may be authorized and paid at any time and for such
interim periods without reference to any regular Dividend Payment Date, to
holders of record on such date not exceeding 50 days preceding the payment date
thereof, as may be fixed by the ProLogis board of trustees. Any dividend
payment made on the Series E preferred shares will first be credited against
the earliest accrued but unpaid dividend due with respect to the Series E
preferred shares that remains payable.
 
  Dividends on Series E preferred shares will accrue whether or not ProLogis
has earnings, whether or not there are funds legally available for the payment
of such dividends, and whether or not such dividends are authorized. No
interest, or sum of money in lieu of interest, will be payable in respect of
any dividend payment or payments on the Series E preferred shares that may be
in arrears. Holders of Series E preferred shares will not be entitled to any
dividends, whether payable in cash, property or shares of ProLogis, in excess
of the full cumulative dividends on the Series E preferred shares.
 
  If, for any taxable year, ProLogis elects to designate as "capital gain
dividends", as defined in Section 857 of the Code or any successor section, any
portion (the "Capital Gains Amount") of the dividends, within the meaning of
the Code, paid or made available for the year to holders of all classes of
shares of beneficial interest (the "Total Dividends"), then the portion of the
Capital Gains Amount that will be allocable to holders of Series E preferred
shares will be in the same proportion that the dividends paid or made available
to the holders of Series E preferred shares for the year bears to the Total
Dividends.
 
  Except as provided in the next sentence, so long as any Series E preferred
shares are outstanding no dividends will be authorized or set apart for payment
or paid for any period on any Parity Shares unless full cumulative dividends
have been authorized and are paid or are contemporaneously authorized and funds
sufficient for the payment thereof are set aside for such payment on the Series
E preferred shares for all prior dividend periods. If accrued dividends on the
Series E preferred shares for all prior dividend periods have not been paid in
full or a sum sufficient for payment thereof is not set apart, then any
dividend declared on the Series E preferred shares and on any Parity Shares for
any dividend period will be declared ratably in proportion to accrued and
unpaid dividends on the Series E preferred shares and such Parity Shares.
 
  So long as any Series E preferred shares are outstanding, ProLogis will not
   
  (1) declare, pay or set apart funds for the payment of any dividend or other
distribution with respect to any "Junior Shares," below or     
   
  (2) redeem, purchase or otherwise acquire for consideration any Junior Shares
through a sinking fund or otherwise, other than a redemption or purchase or
other acquisition of common shares made for purposes of any employee incentive
or benefit plan of ProLogis or any subsidiary, unless     
     
  (a) all cumulative dividends with respect to the Series E preferred
      shares and any Parity Shares at the time such dividends are
      payable have been paid or have been authorized with funds having
      been set apart for payment of such dividends, and     
     
  (b) sufficient funds have been or contemporaneously are paid or have
      been authorized and set apart for the payment of the dividend
      for the current dividend period with respect to the Series E
      preferred shares and any Parity Shares.     
   
  The term "Junior Shares" means the common shares and any other class or
series of beneficial interest of ProLogis now or hereafter issued and
outstanding that ranks junior to the Series E preferred shares as to the
payment of dividends or in the distribution of assets or amounts upon
liquidation, dissolution, and winding up, and the term "Fully Junior Shares"
means the common shares and any other class or series of shares of beneficial
interest of ProLogis now or hereafter issued that rank junior to the Series E
preferred shares as to both the payment of dividends and the distribution of
assets upon liquidation, dissolution and winding up.     
 
                                       78
<PAGE>
 
   
 Liquidation rights     
 
  Upon any voluntary or involuntary liquidation, dissolution or winding up of
ProLogis, before any payment or the distribution of the assets of ProLogis
shall be made to or set apart for the holders of Junior Shares, the holders of
Series E preferred shares will be entitled to receive out of the assets of
ProLogis legally available for distribution to shareholders a liquidation
preference of $25.00 per Series E preferred share, plus an amount equal to all
dividends, whether or not earned or authorized, accrued and unpaid thereon to
the date of final distribution to such holders, and no more.
 
  Until the holders of Series E preferred shares and Parity Shares have been
paid their liquidation preference in full, no payment will be made to any
holder of Junior Shares upon the liquidation, dissolution or winding up of
ProLogis. If upon any liquidation, dissolution or winding up of ProLogis, the
assets of ProLogis, or proceeds thereof, distributable among the holders of the
Series E preferred shares are insufficient to pay in full the amount payable
upon liquidation with respect to the Series E preferred shares and any other
Parity Shares, then such assets, or the proceeds thereof, will be distributed
among the holders of Series E preferred shares and any such Parity Shares
ratably in accordance with the respective amounts which would be payable on
such Series E preferred shares and any such Parity Shares if all amounts
payable thereon were paid in full. A consolidation or merger of ProLogis with
another entity, a statutory share exchange by ProLogis, or a sale, lease, or
transfer of all or substantially all of ProLogis' assets will not be considered
a liquidation, dissolution or winding up, voluntary or involuntary, of
ProLogis.
   
 Redemption     
 
  The Series E preferred shares are not redeemable by ProLogis prior to June
30, 2003. On and after that date, ProLogis, at its option, upon not less than
30 or more than 90 days' written notice, may redeem the Series E preferred
shares, in whole or in part, at any time or from time to time, for cash at a
redemption price of $25.00 per share, plus accumulated, accrued and unpaid
dividends thereon to the date fixed for redemption, without interest. If fewer
than all of the outstanding Series E preferred shares are to be redeemed, the
number of shares to be redeemed will be determined by ProLogis and such shares
may be redeemed pro rata (as nearly as may be) from the holders of record of
such shares in proportion to the number of such shares held by such holders, by
lot, or by any other method determined by ProLogis in its sole discretion to be
equitable.
 
  Unless full cumulative dividends on all Series E preferred shares and any
Parity Shares have been or contemporaneously are authorized and paid or
declared and a sum sufficient for the payment thereof set apart for payment for
all past dividend periods and the then current dividend period, no Series E
preferred shares or Parity Shares may be redeemed in part and may not be or
purchased or acquired by ProLogis except pursuant to a purchase or exchange
offer made on the same terms to holders of all outstanding Series E preferred
shares or Parity Shares, as the case may be.
 
  Notice of redemption will be mailed at least 30 days but not more than 90
days before the redemption date to each holder of record of Series E preferred
shares at the address shown on the share transfer books of ProLogis. Each
notice shall state:
   
  (1) the redemption date;     
   
  (2) the number of Series E preferred shares to be redeemed;     
   
  (3) the redemption price per share;     
   
  (4) the place or places where certificates for Series E preferred shares are
to be surrendered for payment of the redemption price; and     
   
  (5) that dividends on the Series E preferred shares will cease to accrue on
such redemption date.     
 
                                       79
<PAGE>
 
   
  If fewer than all Series E preferred shares are to be redeemed, the notice
mailed to each such holder thereof shall also specify the number of Series E
preferred shares to be redeemed from such holder. If notice of redemption of
any Series E preferred shares has been given and if the funds necessary for
such redemption have been set aside by ProLogis in trust for the benefit of the
holders of Series E preferred shares so called for redemption, then from and
after the redemption date, dividends will cease to accrue on the Series E
preferred shares, such Series E preferred shares shall no longer be deemed
outstanding, and all rights of the holders of such shares will terminate,
except the right to receive the redemption price.     
 
  The holders of Series E preferred shares at the close of business on a
dividend record date will be entitled to receive the dividends payable with
respect to such Series E preferred shares on the corresponding Dividend Payment
Date, notwithstanding the redemption thereof between such Dividend Record Date
and the corresponding Dividend Payment Date. Except as provided above, ProLogis
will make no payment or allowance for unpaid dividends, whether or not in
arrears, on Series E preferred shares which have been called for redemption.
 
  The Series E preferred shares have no stated maturity and will not be subject
to any sinking fund or mandatory redemption.
   
 Voting rights     
 
  Except as indicated below, or except as otherwise from time to time required
by applicable law, the holders of Series E preferred shares will have no voting
rights.
 
  If dividends payable for six or more quarterly periods (whether or not
consecutive) on the Series E preferred shares or any Parity Shares are in
arrears, whether or not earned or declared, the number of trustees then
constituting the board of trustees of ProLogis will be increased by two, and
the holders of Series E preferred shares, voting together as a class with the
holders of any other series of Parity Shares, will have the right to elect two
additional trustees to serve on ProLogis' board of trustees at any annual
meeting of shareholders or a special meeting held in place thereof, or at a
special meeting of the holders of the Series E preferred shares and the Parity
Shares. Such voting rights will terminate when all such accrued and unpaid
dividends have been declared and paid or set aside for payment. The term of
office of all trustees so elected will terminate with the termination of such
voting rights and the number of trustees shall be reduced accordingly.
 
  The approval of two-thirds of the outstanding Series E preferred shares and
all other Parity Shares similarly affected, voting as a single class, is
required in order to
   
  (1) amend ProLogis' declaration of trust to affect materially and adversely
the rights, preferences or voting power of the holders of the Series E
preferred shares or the Parity Shares;     
   
  (2) enter into a share exchange that affects the Series E preferred shares,
or consolidate ProLogis with or merge ProLogis with another entity, unless in
each such case each Series E preferred share remains outstanding without a
material adverse change to its terms and rights or is converted into or
exchanged for preferred shares of the surviving entity having preferences,
conversion and other rights, voting powers, restrictions, limitations as to
dividends, qualifications and terms and conditions of redemption thereof
identical to that of the Series E preferred shares except for changes that do
not materially and adversely affect the holders of Series E preferred shares,
or     
   
  (3) authorize, create, or increase the authorized amount of any shares of any
class, or any security convertible into shares of any class, having rights
senior to the Series E preferred shares with respect to the payment of
dividends or amounts upon liquidation, dissolution, or winding up of ProLogis
unless a provision is made for redemption of all outstanding Series E preferred
shares.     
 
                                       80
<PAGE>
 
   
  However, ProLogis may create additional classes of Parity Shares and Junior
Shares, increase the authorized number of Parity Shares and Junior Shares and
issue additional series of Parity Shares and Junior Shares without the consent
of any holder of Series E preferred shares.     
 
  Except as provided above and as required by applicable law, the holders of
Series E preferred shares are not entitled to vote on any merger or
consolidation involving ProLogis, on any share exchange or on a sale of all or
substantially all of the assets of ProLogis and the consent of such holders
shall not be required for the taking of any corporate action.
   
 Conversion     
 
  The Series E preferred shares are not convertible into or exchangeable for
any other property or securities of ProLogis.
   
 Restrictions on ownership     
   
  As described above in "Description of ProLogis Securities--Common shares--
Restrictions on size of holdings," for ProLogis to qualify as a REIT under the
Code, no more than 50% in value of its outstanding shares of beneficial
interest may be owned, directly or indirectly, by five or fewer "individuals"
during the last half of a full taxable year or during a proportionate part of a
shorter taxable year. Under the constructive ownership provisions of the Code,
shares owned by an entity, including a corporation, life insurance company,
mutual fund or pension trust, are treated as owned by the ultimate individual
beneficial owners of the entity. Because ProLogis intends to maintain its
qualification as a REIT, ProLogis' declaration of trust and articles
supplementary contain certain restrictions on the ownership and transfer of
shares of beneficial interest, including the Series E preferred shares,
intended to assist ProLogis in complying with these requirements.     
   
  Subject to certain exceptions specified in the ProLogis' declaration of
trust, no holder may own, or be deemed to own by virtue of certain attribution
provisions of the Code, more than 9.8% of the ProLogis Series E preferred
shares. The ProLogis board has waived this restriction with respect to the
acquisition of Series E preferred shares for a holder who is not an
"individual" within the meaning of Section 542(a)(2) of the Code as modified by
Section 856(h)(3) of the Code, so long as through such holder's ownership of
such Series E preferred shares (1) no "individual" would be considered the
beneficial owner of more than 9.8% of the Series E preferred shares and (2)
such holder would not be deemed to own, actually or constructively, an interest
in a tenant of ProLogis or a tenant of an entity owned or controlled by
ProLogis in whole or in part, that would cause ProLogis to own, actually or
constructively, more than a 9.8% interest (as set forth in Section 856(h)(3) of
the Code) in any tenant of ProLogis. If a holder were to acquire more than 9.8%
of the Series E preferred shares and such holder did not meet the criteria set
forth in the preceding sentence, such holder's Series E preferred shares would
be subject to the provisions in the declaration of trust and relating to a
violation of the ownership limits as described above in "Description of
ProLogis Securities--Common shares--Restrictions on size of holdings."     
 
                                       81
<PAGE>
 
                       PRINCIPAL SHAREHOLDERS OF PROLOGIS
   
  The following table sets forth, as of January 29, 1999, the pro forma
beneficial ownership of ProLogis common shares, after giving effect to the
merger, for (1) each person who will be beneficial owner of more than 5% of the
ProLogis common shares, (2) each trustee of ProLogis, (3) the co-chairmen of
ProLogis and the three other most highly compensated executive officers of
ProLogis and (4) all trustees and executive officers of ProLogis as a group.
Unless otherwise indicated in the footnotes, all of the ProLogis shares will be
owned directly, and the indicated person or entity will have sole voting and
dispositive power. The number and percent of ProLogis common shares that will
be beneficially owned by a person assume that all options held by that person
which are exercisable within 60 days will be exercised, but that no options
held by other persons have been exercised. Unless otherwise noted, the mailing
address for each person identified below will be c/o ProLogis Trust, 14100 East
35th Place, Aurora, Colorado 80011.     
 
<TABLE>   
<CAPTION>
                                               Number of ProLogis
                                               Common Shares to be   Percent of
Beneficial Owner                               Beneficially Owned      Class
- ----------------                               -------------------   ----------
<S>                                            <C>                   <C>
Security Capital Group Incorporated..........      49,903,814(1)       30.99%
125 Lincoln Avenue
Santa Fe, New Mexico 87501
The Prudential Insurance Company of America..       9,913,565           6.16
Prudential Plaza
751 Broad Street
Newark, New Jersey 07102
Ameritech Pension Trust......................       9,777,457           6.07
225 West Randolph Street, HQ13A
Chicago, Illinois 10017
K. Dane Brooksher............................         125,870(2)           *
Stephen L. Feinberg..........................         136,648(3)(4)        *
4855 North Mesa, Suite 120
El Paso, Texas 79912
Donald P. Jacobs.............................           2,283(3)           *
J.L. Kellogg Graduate School of Management
Northwestern University
2001 Sheridan Road
Evanston, Illinois 60208
Irving F. Lyons III..........................         359,227(5)           *
47775 Fremont Boulevard
Fremont, California 94538
William G. Myers.............................         157,334(3)(6)        *
1114 State Street, Suite 232
Santa Barbara, California 93101
John E. Robson...............................          17,783(3)(7)        *
555 California Street, Suite 2600
San Francisco, California 94101
Thomas G. Wattles............................          26,339(8)           *
125 Lincoln Avenue
Santa Fe, New Mexico 87501
Jeffrey H. Schwartz..........................         185,917(9)           *
John W. Seiple...............................          50,798(10)          *
Robert J. Watson.............................          65,393(11)          *
All trustees and executive officers as a
group (19 persons)...........................       1,421,355              *
</TABLE>    
- --------
*Less than 1%
 
                                       82
<PAGE>
 
   
(1) These shares are owned of record by SC Realty Incorporated, a wholly owned
    subsidiary of Security Capital.
        
(2) Includes 772 shares held by Mr. Brooksher's wife.
(3) Includes for Messrs. Feinberg, Jacobs, Myers and Robson beneficial
    ownership of 10,000, 6,000, 8,000 and 10,000 shares, respectively, that are
    issuable upon exercise of options granted under the ProLogis Share Option
    Plan for Outside Trustees.
(4) 50,000 of these shares and 11,000 ProLogis Series B preferred shares
    convertible into an aggregate of 14,102 shares are owned by Dorsar
    Partners, L.P.; as a result of his position with this entity, Mr. Feinberg
    may be deemed to share voting and dispositive power with respect to common
    shares owned by this entity. 6,000 of these shares are owned by a trust for
    the benefit of Mr. Feinberg and an additional 6,000 of these shares are
    owned by a trust for the benefit of a relative of which Mr. Feinberg is a
    trustee.
(5) 7,625 of these shares are owned by trusts for the benefit of Mr. Lyons and
    other family members of which Mr. Lyons is a trustee and 280 of these
    shares are owned by Mr. Lyons' daughters. 256,530 of these shares are
    issuable upon exchange of units in SCI Limited Partnership--I. Mr. Lyons is
    a partner of certain limited partners of such partnership. By virtue of
    such position, Mr. Lyons may be deemed to beneficially own these shares.
(6) 34,814 of these shares are owned by an entity with which Mr. Myers may be
    deemed to share voting and dispositive power with respect to shares as a
    result of his position with this entity. 118,181 of these shares are owned
    by Mr. Myers' Profit Sharing Plan.
(7) 13,939 of these shares are owned by Mr. Robson's IRA and 3,400 of these
    shares are owned by the John and Margaret Robson Living Trust. Mrs. Robson
    owns 444 of these shares.
(8) 7,424 of these shares are held by Mr. Wattles' IRA, 2,178 of these shares
    are held by Mr. Wattles' children and 5 shares are held by Mr. Wattles'
    wife.
(9) 128,264 of these shares are issuable upon exchange of units in a
    partnership owned by Mr. Schwartz.
(10) Mr. Seiple's shareholdings include 804 shares owned by his children.
(11) Includes 866 shares held in trust accounts for Mr. Watson's children, 433
     shares held by his wife and 1,150 shares held by the estate of Mr.
     Watson's late father.
 
                                 LEGAL MATTERS
   
  The validity of the ProLogis common shares and ProLogis Series E preferred
shares offered to holders of Meridian common stock and Meridian preferred
stock, respectively, by this joint proxy statement and prospectus has been
passed upon for ProLogis by Mayer, Brown & Platt, Chicago, Illinois. An opinion
as to continued REIT qualification following the merger has been rendered for
ProLogis and Meridian by Mayer, Brown & Platt. An opinion as to the tax aspects
of the merger has been rendered for Meridian by Vinson & Elkins L.L.P. and an
opinion as to the tax aspects of the merger has been rendered for ProLogis by
Mayer, Brown & Platt. Mayer, Brown & Platt has in the past represented and is
currently representing Security Capital and other affiliates of ProLogis.     
 
                   INDEPENDENT PUBLIC ACCOUNTANTS AND EXPERTS
   
  The consolidated financial statements and schedules of ProLogis as of
December 31, 1997 and 1996, and for each of the years in the three-year period
ending December 31, 1997 incorporated by reference herein and in this
registration statement on Form S-4 filed by ProLogis have been audited by
Arthur Andersen LLP, independent public accountants, as indicated in their
reports with respect thereto, and are incorporated by reference herein in
reliance upon the authority of said firm as experts in accounting and auditing
in giving said reports.     
 
 
                                       83
<PAGE>
 
  The consolidated financial statements and schedules of Meridian as of
December 31, 1997 and 1996, and for the years ending December 31, 1997 and 1996
and the period from inception through December 31, 1995 incorporated by
reference herein and in the registration statement on Form S-4 filed by
ProLogis have been audited by Arthur Andersen LLP, independent public
accountants, as indicated in their reports with respect thereto, and are
incorporated by reference herein in reliance upon the authority of said firm as
experts in accounting and auditing in giving said reports.
 
  With respect to the unaudited interim financial information for the nine
months ended September 30, 1998 and 1997, for ProLogis, Arthur Andersen LLP has
applied limited procedures in accordance with professional standards for a
review of that information. However, their separate report thereon states that
they did not audit and they do not express an opinion on that interim financial
information. Accordingly, the degree of reliance on their report on that
information should be restricted in light of the limited nature of review
procedures applied. In addition, the accountants are not subject to the
liability provisions of Section 11 of the Securities Act of 1933 for their
report on the unaudited interim financial information because that report is
not a "report" or a "part" of the registration statement prepared or certified
by the accountants within the meaning of Sections 7 and 11 of the Securities
Act of 1933.
 
 
                                       84
<PAGE>
 
                                 PROLOGIS TRUST
 
         INDEX TO PRO FORMA CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
 
<TABLE>
<CAPTION>
                                                                         Page
                                                                         ----
<S>                                                                      <C>
Pro Forma Condensed Consolidated Balance Sheet as of September 30, 1998
 (unaudited)                                                             F-3
Notes to Pro Forma Condensed Consolidated Balance Sheet                  F-4
Pro Forma Condensed Consolidated Statement of Earnings from Operations
 for the nine months ended September 30, 1998 (unaudited)                F-7
Pro Forma Condensed Consolidated Statement of Earnings from Operations
 for the year ended December 31, 1997 (unaudited)                        F-8
Notes to Pro Forma Condensed Consolidated Statements of Earnings from
 Operations                                                              F-9
</TABLE>
 
                                      F-1
<PAGE>
 
                                 PROLOGIS TRUST
 
                        PRO FORMA CONDENSED CONSOLIDATED
                              FINANCIAL STATEMENTS
 
                                  (Unaudited)
   
  The accompanying pro forma condensed consolidated financial statements for
ProLogis Trust ("ProLogis") reflect: (i) the acquisition by ProLogis of certain
industrial distribution facilities during the period from December 31, 1996 to
October 30, 1998, as detailed in the Current Report on Form 8-K filed by
ProLogis on December 3, 1998 and (ii) the proposed merger (the "Merger") of
Meridian Industrial Trust, Inc. ("Meridian") with and into ProLogis.     
   
  Under the Agreement and Plan of Merger dated as of November 16, 1998, as
amended (the "Merger Agreement"), for each share of Meridian common stock held,
the holder will receive 1.10 ProLogis common shares ("ProLogis Common Shares")
plus up to $2.00 in cash under certain circumstances, and Meridian's Series D
preferred stockholders will receive one comparable ProLogis cumulative
redeemable preferred share. In addition, ProLogis will assume Meridian's
outstanding liabilities. The Merger will be accounted for using the purchase
method of accounting in accordance with Accounting Principles Board Opinion No.
16.     
   
  The accompanying pro forma condensed consolidated financial statements have
been prepared based upon certain pro forma adjustments to the historical
financial statements of ProLogis. The pro forma adjustment to reflect the
Merger is based upon the pro forma financial statements of Meridian that were
previously filed via Current Report on Form 8-K by Meridian on December 7,
1998, which is referenced in the accompanying notes to the pro forma condensed
consolidated financial statements.     
   
  The accompanying pro forma condensed consolidated balance sheet has been
prepared as if: (i) the facility acquired by ProLogis subsequent to September
30, 1998 had been acquired as of that date; and, (ii) the Merger had occurred
as of September 30, 1998.     
   
  The accompanying pro forma condensed consolidated statements of earnings from
operations for the nine months ended September 30, 1998 and the year ended
December 31, 1997 have been prepared as if: (i) the acquisition of certain
facilities acquired by ProLogis during the period from January 1, 1997 to
October 30, 1998 as detailed in the Current Report on Form 8-K filed by
ProLogis on December 3, 1998 had occurred on January 1, 1997; (ii) the
assumption of certain mortgage debt associated with the facilities noted in (i)
above had occurred as of January 1, 1997; (iii) the issuance of senior
unsecured notes subsequent to December 31, 1996, necessary to fund the pro
forma acquisitions noted in (i) above, had occurred as of January 1, 1997; and,
(iv) the Merger had occurred as of January 1, 1997.     
   
  The pro forma condensed consolidated financial statements do not purport to
be indicative of the financial position or results of operations which would
actually have been obtained had the Merger and other transactions been
completed on the dates indicated or which may be obtained in the future. The
pro forma condensed consolidated financial statements should be read in
conjunction with the historical financial statements of ProLogis and Meridian,
as set forth in their respective 1997 Annual Reports on Form 10-K and Quarterly
Reports on Form 10-Q for the nine months ended September 30, 1998 and the pro
forma financial statements of Meridian included in the Current Report on Form
8-K filed on December 7, 1998.     
 
  The accompanying pro forma condensed consolidated statements of earnings from
operations for the nine months ended September 30, 1998 and the year ended
December 31, 1997 do not give effect to the fully stabilized results of
operations related to: (i) facilities under development of both ProLogis and
Meridian at September 30, 1998 with a combined total budgeted completion cost
of $544.2 million; or, (ii) completed developments of ProLogis and Meridian
during 1997 and the first nine months of 1998 with a combined total budgeted
completion cost of $678.3 million. Management believes that there will be
sufficient depth of management and personnel such that additional facilities
can be developed and managed without a significant increase in personnel or
other costs. As a result, management believes that the accretion in net
earnings from operations and funds from operations from the Merger reflected in
the pro forma condensed consolidated statements of earnings from operations is
not indicative of the full accretion that is expected to occur on a post-Merger
basis.
   
  In management's opinion, all material adjustments necessary to reflect the
effects of the Merger and other transactions have been made to the pro forma
condensed consolidated financial statements.     
 
 
                                      F-2
<PAGE>
 
                                 PROLOGIS TRUST
 
                 PRO FORMA CONDENSED CONSOLIDATED BALANCE SHEET
 
                               September 30, 1998
                      (In thousands, except share amounts)
                                  (Unaudited)
 
<TABLE>   
<CAPTION>
                                                                   Pro Forma Merger Adjustments
                                                                ----------------------------------------
                                       Pro Forma
                                        Adjust-      ProLogis                                                 ProLogis
                           ProLogis     ments--     Pre-Merger               Purchase Price                  Post-Merger
         ASSETS           Historical  Acquisitions  Pro Forma   Meridian(d)   Adjustments       ProLogis      Pro Forma
         ------           ----------  ------------  ----------  -----------  --------------     --------     -----------
<S>                       <C>         <C>           <C>         <C>          <C>                <C>          <C>
Real estate.............  $3,483,817     $7,663 (a) $3,491,480  $1,179,783      $278,973            --       $4,950,236
 Less accumulated
  depreciation..........     231,526        --         231,526      29,005       (29,005)           --          231,526
                          ----------     ------     ----------  ----------      --------        -------      ----------
   Net real estate
    investment..........   3,252,291      7,663      3,259,954   1,150,778       307,978 (e)(f)     --        4,718,710
Investments in and
 advances to
 unconsolidated
 subsidiaries...........     525,138        --         525,138      45,907           --  (g)        --          571,045
Cash and cash
 equivalents............      31,650     (4,138)(b)     27,512       3,535           --             --           31,047
Restricted cash and cash
 held in escrow.........         --         --             --       10,912           --             --           10,912
Note receivable.........         --         --             --        8,000           --  (h)        --            8,000
Accounts receivable and
 other assets...........     115,049        --         115,049      31,479       (14,304)(e)(i)     --          132,224
                          ----------     ------     ----------  ----------      --------        -------      ----------
     Total assets.......  $3,924,128     $3,525     $3,927,653  $1,250,611      $293,674        $   --       $5,471,938
                          ==========     ======     ==========  ==========      ========        =======      ==========
<CAPTION>
    LIABILITIES AND
  SHAREHOLDERS' EQUITY
  --------------------
<S>                       <C>         <C>           <C>         <C>          <C>                <C>          <C>
Liabilities:
 Lines of credit........  $  159,500     $  --      $  159,500  $  292,148      $(48,301)(j)    $10,304 (p)  $  476,655
                                                                                  56,695 (e)(k)
                                                                                   5,550 (e)(k)
                                                                                     759 (l)
 Short-term
  borrowings............     150,000        --         150,000         --            --             --          150,000
 Mortgage notes and
  assessment bonds
  payable...............     134,534      3,525 (c)    138,059     103,312         5,794 (e)(m)     --          247,165
 Long-term debt.........     958,586        --         958,586     160,102        (4,015)(e)(m)     --        1,114,673
 Accounts payable and
  other liabilities.....     155,898        --         155,898      50,007        10,304 (e)(n) (10,304)(p)     205,905
                          ----------     ------     ----------  ----------      --------        -------      ----------
     Total liabilities..   1,558,518      3,525      1,562,043     605,569        26,786            --        2,194,398
Minority interest.......      51,358        --          51,358      17,605           --             --           68,963
Shareholders' equity:
 Series A Preferred
  Shares................     135,000        --         135,000         --            --             --          135,000
 Series B Convertible
  Preferred Shares......     194,925        --         194,925      25,000       (25,000)(j)        --          194,925
 Series C Preferred
  Shares................     100,000        --         100,000         --            --             --          100,000
 Series D Preferred
  Shares................     250,000        --         250,000      50,000           --         (50,000)(q)     250,000
 Series E Preferred
  Shares................         --         --             --          --            --          50,000 (q)      50,000
 Common Shares
  (123,091,696 shares
  historical and
  162,933,442 shares
  post-merger pro
  forma)................       1,231        --           1,231          32             3 (j)        362 (q)       1,629
                                                                                       1 (j)
Additional paid-in
 capital................   1,899,342        --       1,899,342     567,044        73,297 (j)       (362)(q)   2,743,269
                                                                                 219,346 (e)(o) (14,639)(r)
                                                                                    (759)(l)
Employee share purchase
 notes..................     (25,660)       --         (25,660)        --                           --          (25,660)
Accumulated other
 comprehensive income...         307        --             307         --            --             --              307
Distributions in excess
 of net earnings........    (240,893)       --        (240,893)    (14,639)          --          14,639 (r)    (240,893)
                          ----------     ------     ----------  ----------      --------        -------      ----------
     Total shareholders'
      equity............   2,314,252        --       2,314,252     627,437       266,888            --        3,208,577
                          ----------     ------     ----------  ----------      --------        -------      ----------
     Total liabilities
      and shareholders'
      equity............  $3,924,128     $3,525     $3,927,653  $1,250,611      $293,674        $   --       $5,471,938
                          ==========     ======     ==========  ==========      ========        =======      ==========
</TABLE>    
 
     The accompanying notes are an integral part of the pro forma condensed
                       consolidated financial statements.
 
                                      F-3
<PAGE>
 
                                 PROLOGIS TRUST
 
            NOTES TO PRO FORMA CONDENSED CONSOLIDATED BALANCE SHEET
 
                               September 30, 1998
                                  (Unaudited)
   
(a) Represents the acquisition of the Oceanie Distribution Center #1 in Paris,
    France on October 30, 1998. The purchase price of the facility was $7.7
    million and $3.5 million of existing mortgage debt was assumed.     
   
(b) Represents the use of cash on hand to fund the cash portion of the pro
    forma acquisition discussed in footnote (a).     
   
(c) Represents the assumption of mortgage debt associated with the pro forma
    acquisition discussed in footnote (a).     
   
(d) Reference is made to Meridian's Current Report on Form 8-K filed on
    December 7, 1998 with the Securities and Exchange Commission for the source
    of Meridian's pre-Merger pro forma balance sheet as of September 30, 1998.
    Meridian's pro forma balance sheet gives effect to the post September 30,
    1998 acquisitions of real estate assets as if these acquisitions had
    occurred as of September 30, 1998. Certain amounts have been reclassified
    to conform to ProLogis' financial statement presentation.     
   
(e) Represents adjustments to record Meridian's pro forma assets and
    liabilities at their respective purchase values based on the purchase
    method of accounting. The assumed purchase price was computed as follows
    (in thousands):     
 
<TABLE>   
     <S>                                                            <C>
     Issuance of ProLogis Common Shares (1)........................ $  848,709
     Issuance of ProLogis Series E preferred shares (3)............     46,375
     Cash payments to Meridian common shareholders (2).............     56,695
     Assumption of Meridian's liabilities at estimated fair value
      (4)..........................................................    569,351
     Assumption of Meridian's pro forma minority interest at book
      value (which approximates estimated fair value)..............     17,605
     Costs incurred by ProLogis (5)................................      5,550
                                                                    ----------
     Assumed purchase price........................................ $1,544,285
                                                                    ==========
</TABLE>    
     
  (1) Represents the value of the 39,841,746 ProLogis common shares that will
      be exchanged for the assumed 36,219,769 outstanding shares of Meridian
      common stock (based on the exchange ratio of 1.1 to one). The value of
      the ProLogis Common Shares is based upon the average of the high and
      low trading prices of the shares for the fifteen trading days prior to
      and including January 29, 1999 of $21.302 per share. The assumed
      outstanding shares of Meridian common stock are calculated as follows:
          
<TABLE>   
      <S>                                                          <C>
      Pre-Merger pro forma shares of Meridian common stock
       outstanding................................................ 31,674,027
      Conversion of Meridian Series B preferred stock.............  1,623,376
      Assumed exercise of options and warrants....................  2,640,366
      Conditional stock grants ...................................    282,000
                                                                   ----------
      Adjusted pro forma shares of Meridian common stock
       outstanding................................................ 36,219,769
                                                                   ==========
</TABLE>    
     
  (2) Represents the cash payment to Meridian common stockholders based upon
      the assumed price of ProLogis Common Shares of $21.302 and the value
      provided for in the Merger Agreement of $22.725 ($1.423 difference at
      the 1.10 for one exchange ratio for 36,219,769 Meridian shares).     
     
  (3) The assumed value of the ProLogis Series E preferred shares is based
      upon the closing price of the Meridian Series D preferred stock on
      January 29, 1999 of $23.1875 per share.     
     
  (4) The Meridian liabilities assumed are calculated as follows:     
<TABLE>   
      <S>                                                              <C>
      Meridian pro forma liabilities.................................. $605,569
      Fair value adjustment to mortgage notes (see note (m))..........    5,794
      Fair value adjustment to long-term debt (see note (m))..........   (4,015)
      Accrued severance costs (see note (n)) .........................   10,304
      Pro forma pay down on line of credit (see note (j)).............  (48,301)
                                                                       --------
                                                                       $569,351
                                                                       ========
</TABLE>    
 
                                      F-4
<PAGE>
 
                                 PROLOGIS TRUST
 
      NOTES TO PRO FORMA CONDENSED CONSOLIDATED BALANCE SHEET--(Continued)
     
  (5) Represents costs to be incurred by ProLogis in connection with the
      Merger, ($5,350,000 of banking and professional fees and $200,000 for
      other costs including printing, regulatory filing, title and transfer
      costs).     
   
(f) Represents the step-up in basis of Meridian's real estate assets in
    accordance with the purchase method of accounting based on the assumed
    purchase price (see note (e)). Management's fair value estimates are based
    on:     
     
  (i) Operating facilities: the application of an estimated capitalization
      rate to each operating facility's estimated 1999 net operating income.
      The capitalization rates were based upon market analysis and individual
      property assessments;     
     
  (ii) Developments expected to be completed in 1998: the application of an
       estimated capitalization rate to the facility's estimated 1999 net
       operating income. The capitalization rates were based upon market
       analysis and individual property assessments. This value was then
       adjusted to reflect the estimated percentage of completion of the
       facilities as of September 30, 1998;     
     
  (iii) Developments expected to be completed subsequent to 1998: the actual
        cost of the development at September 30, 1998 adjusted upward by a
        factor to reflect the step-up to estimated fair value. Based on
        ProLogis' experience, the historical cost of an internally developed
        facility upon completion is less than the fair value of the facility
        at the time of completion;     
     
  (iv) Land held for development: the book value at September 30, 1998 was
       deemed to be the fair value because all land acquisitions occurred
       within the last 12 months and the acquisition cost is representative
       of current market conditions;     
     
  (v) Participating mortgage note receivable included in real estate:
      represents a participating mortgage note at the actual outstanding
      principal balance at September 30, 1998. The interest rate of the note
      of 10.5% was deemed to be comparable to the interest rate that would
      have been negotiated by the combined company.     
   
  A summary of the fair values is as follows (in thousands):     
<TABLE>   
      <S>                                                       <C>
      Operating facilities                                      $1,303,760
      Developments expected to be completed in 1998                 90,389
      Developments expected to be completed subsequent to 1998      12,990
      Land held for development                                     28,601
      Participating mortgage note receivable                        23,300
      Negative goodwill                                               (284)
                                                                ----------
      Fair value of real estate assets                           1,458,756
      Pro forma book value of Meridian real estate assets        1,150,778
                                                                ----------
      Step-up in basis                                          $  307,978
                                                                ==========
</TABLE>    
   
(g) The fair value of Meridian's investment in the preferred stock of Meridian
    Refrigerated, Inc., which owns refrigerated distribution companies, is
    assumed to be the book value at September 30, 1998. The underlying assets
    of Meridian Refrigerated, Inc. were acquired in 1998.     
   
(h) Represents a note receivable to Meridian. The fair value of the note is its
    outstanding principal balance at September 30, 1998 because the interest
    rate of the note of 8.5% was deemed to be comparable to the interest rate
    that would have been negotiated by the combined company.     
   
(i) Represents the elimination of the following assets of Meridian that have no
    future value to the combined company (in thousands):     
 
<TABLE>   
     <S>                                                               <C>
     Deferred loan costs, net......................................... $ 2,432
     Costs capitalized associated with a new financial reporting
      software package that will not be implemented by the combined
      company.........................................................     925
     Rent leveling receivable.........................................   5,740
     Capitalized leasing commissions and expenses, net................   3,866
     Miscellaneous fixed assets.......................................     716
     Costs incurred related to potential Meridian facility
      acquisitions that are not planned by the combined company.......     625
                                                                       -------
       Total adjustment............................................... $14,304
                                                                       =======
</TABLE>    
 
                                      F-5
<PAGE>
 
                                 PROLOGIS TRUST
 
      NOTES TO PRO FORMA CONDENSED CONSOLIDATED BALANCE SHEET--(Continued)
   
(j) Represents the: (i) assumed pre-Merger conversion of Meridian's 1,623,376
    shares of Meridian Series B convertible preferred stock into shares of
    Meridian common stock on a one for one basis ($1,000 aggregate par value
    and $24,999,000 aggregate additional paid-in capital); and, (ii) the
    issuance of shares of Meridian common stock upon the assumed exercise of
    outstanding options and warrants ($3,000 aggregate par value and
    $48,298,000 aggregate additional paid-in capital). In accordance with
    Section 5.10 of the Merger Agreement, the Meridian options will vest and
    become fully exercisable upon consummation of the Merger. As all of the
    outstanding options and warrants have exercise prices below the current per
    share price of Meridian common stock, the full exercise of the options is
    assumed for pro forma purposes.     
          
  The proceeds from the exercise of the Meridian options and warrants are
  assumed to be used to pay down Meridian's line of credit as follows
  (dollars in thousands, except per share amounts):     
 
<TABLE>   
     <S>                                                               <C>
     2,024,371 options at a weighted average exercise price of $19.07
      per share......................................................  $38,605
     615,995 warrants at a weighted average exercise price of $15.74
      per share......................................................    9,696
                                                                       -------
       Cash proceeds from assumed exercise...........................  $48,301
                                                                       =======
</TABLE>    
   
(k) Represents additional borrowings on ProLogis' lines of credit necessary to
    fund the cash payments to Meridian stockholders described in note (e)(2)
    and merger costs described in note(e)(5).     
   
(l) Represents costs associated with registering the ProLogis common and
    preferred shares to be given to the Meridian stockholders in the Merger.
           
(m) The adjustments to Meridian's mortgage notes payable and long-term debt
    reflect the premium or discount to adjust these financial instruments to
    their estimated fair value. The adjustment is based on the present value of
    amounts to be paid using interest rates currently available to ProLogis for
    debt obligations with similar terms and features. The borrowing rates
    available to ProLogis are assumed to be comparable to the borrowing rates
    available to the combined company. The adjustments are based on current
    rates ranging from 7.20% to 8.05%. See note (e)(4).     
          
(n) Represents the liability to be assumed by the combined company related to
    the costs under the severance agreements with Meridian's officers and the
    severance plan applicable to all other Meridian employees. Under Section
    5.9 of the Merger Agreement all Meridian employees will be terminated as a
    result of the Merger. See note (e)(4).     
   
(o) Represents adjustment of Meridian's stockholders' equity based on the
    assumed fair value of the shares to be received from ProLogis as calculated
    below (dollars in thousands, except per share amounts):     
 
<TABLE>   
     <S>                                                              <C>
     39,841,746 shares of common stock at $21.302 per share (the
      assumed per share value of the ProLogis Common Shares to be
      issued to Meridian holders on 1.10 for one basis as described
      in note (e))..................................................  $ 848,709
     2,000,000 shares of preferred stock at $23.1875 per share (the
      assumed per share value of the ProLogis preferred shares to be
      issued to Meridian holders on a one for one basis as described
      in note (e))..................................................     46,375
     Meridian's pre-Merger pro forma stockholders' equity (assumes
      conversion of Meridian Series B preferred stock and exercise
      of options and warrants described in note (j))................   (675,738)
                                                                      ---------
       Total adjustment.............................................  $ 219,346
                                                                      =========
</TABLE>    
   
(p) Represents the payments to terminated Meridian employees to be made by
    ProLogis under the terms of the Merger Agreement.     
   
(q) Represents: (i) the 1.10 for one exchange of 36,219,769 shares of Meridian
    common stock ($0.001 par value) for 39,841,746 ProLogis Common Shares
    ($0.01 par value); (ii) the one for one exchange of 2,000,000 shares of
    Meridian Series D preferred stock for 2,000,000 comparable ProLogis Series
    E preferred shares ($25.00 per share stated liquidation preference) (the
    number of shares of Meridian common stock are determined in note (e)); and,
    (iii) a $362,000 adjustment for the difference between the $0.001 par value
    of Meridian's common stock on an aggregate basis as compared to the $0.01
    par value of ProLogis' Common Shares on an aggregate basis related to the
    exchange of shares referenced above.     
          
(r) Represents the reclassification of $14,639,000 of Meridian's distributions
    in excess of net earnings to additional paid-in capital in accordance with
    purchase accounting.     
 
                                      F-6
<PAGE>
 
                                 PROLOGIS TRUST
 
                 PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF
                            EARNINGS FROM OPERATIONS
 
                      Nine Months Ended September 30, 1998
                     (In thousands, except per share data)
                                  (Unaudited)
 
<TABLE>   
<CAPTION>
                                                                                           Pro Forma Merger
                                               Acquisitions                                   Adjustments
                                          -----------------------       ProLogis      -----------------------------
                             ProLogis                  Pro Forma       Pre-Merger
                            Historical    Historical  Adjustments      Pro Forma      Meridian (bb)   ProLogis (cc)
                            ----------    ----------  -----------      ----------     -------------   -------------
<S>                         <C>           <C>         <C>              <C>            <C>             <C>
Income:
 Rental income............  $ 251,605       $4,411(u)     $ --         $ 256,016        $  77,599        $   --
 Other real estate
  income..................     10,542          --           --            10,542              --             --
 Income from
  unconsolidated
  subsidiaries and JV.....      1,930          --           --             1,930            3,883            --
 Foreign exchange gains,
  net.....................      5,336          --           --             5,336              --             --
 Interest and other
  income..................      2,012          --           --             2,012            1,339            --
                            ---------       ------      -------        ---------        ---------        -------
   Total income...........    271,425        4,411          --           275,836           82,821            --
                            ---------       ------      -------        ---------        ---------        -------
Expenses:
 Rental expenses, net of
  recoveries..............     20,458          392(u)        29 (v)       20,879            5,742            --  (dd)
 General and
  administrative..........     14,060          --           --            14,060            5,502         (4,015)(ee)
 Administrative services
  fee paid to affiliate...      1,566          --           --             1,566              --             --
 Depreciation and
  amortization............     73,684          --         1,111 (w)       74,795           18,021          6,071 (ff)
 Interest.................     52,455          --         2,919 (x)(y)    55,374           17,807           (242)(gg)
 Interest rate hedge
  expense.................     27,652          --           --            27,652           12,633
 Other....................      4,096          --           --             4,096              713            --
                            ---------       ------      -------        ---------        ---------        -------
   Total expenses.........    193,971          392        4,059          198,422           60,418          1,814
                            ---------       ------      -------        ---------        ---------        -------
Earnings from operations
 before minority interest,
 excluding gains on
 dispositions.............     77,454        4,019       (4,059)          77,414           22,403         (1,814)
Minority interest share in
 net earnings.............      3,101          --           --             3,101              896            --
                            ---------       ------      -------        ---------        ---------        -------
Earnings from operations,
 excluding gains on
 dispositions.............     74,353        4,019       (4,059)          74,313           21,507         (1,814)
Less preferred share
 dividends................     35,543          --           --            35,543            4,888         (1,607)(hh)
                            ---------       ------      -------        ---------        ---------        -------
Net earnings from
 operations attributable
 to common shares.........  $  38,810       $4,019      $(4,059)       $  38,770        $  16,619        $ (207)
                            =========       ======      =======        =========        =========        =======
Weighted average common
 shares outstanding--
 basic....................    121,183(s)       -- (s)       --  (s)      121,183(z)        31,674(z)
                            =========       ======      =======        =========        =========
Weighted average common
 shares outstanding--
 diluted..................    121,421(s)       -- (s)       --  (s)      121,421(z)        32,131(z)
                            =========       ======      =======        =========        =========
Per share net earnings
 from operations
 attributable to common
 shares:
 Basic....................  $    0.32(s)       -- (s)       -- (s)     $    0.32(z)     $    0.52(z)
                            =========       ======      =======        =========        =========
 Diluted..................  $    0.32(s)       -- (s)       -- (s)     $    0.32(z)     $    0.52(z)
                            =========       ======      =======        =========        =========
Reconciliation of net
 earnings from operations
 attributable to common
 shares to funds from
 operations attributable
 to common shares:
 Net earnings from
  operations attributable
  to common shares........  $  38,810       $4,019      $(4,059)       $  38,770        $  16,619        $ (207)
Add (Deduct):
 Real estate depreciation
  and amortization........     72,902          --         1,111           74,013           17,908          6,071
 Minority interest........      3,101          --           --             3,101              851            --
 Foreign currency
  exchange gain related
  to acquisition of
  affiliate...............     (2,054)         --           --            (2,054)             --             --
 Interest rate hedge
  expense.................     27,652          --           --            27,652           12,633            --
 Net foreign exchange
  gain on remeasurement
  of intercompany debt....     (3,417)         --           --            (3,417)             --             --
 Non-recurring costs......      1,452          --           --             1,452              --             --
 Parent companies' share
  of reconciling items of
  unconsolidated
  subsidiaries and JV.....     32,702          --           --            32,702            1,134            --
                            ---------       ------      -------        ---------        ---------        -------
Funds from operations
 attributable to common
 shares...................  $ 171,148(t)    $4,019(t)    (2,948)(t)    $ 172,219(aa)    $  49,145(aa)    $ 5,864 (aa)
                            =========       ======      =======        =========        =========        =======
Weighted average common
 shares outstanding--
 basic....................    126,253(t)       -- (t)       --  (t)      126,253(aa)       32,157(aa)
                            =========       ======      =======        =========        =========
Weighted average common
 shares outstanding--
 diluted.                     136,647(t)       -- (t)       --  (t)      136,647(aa)       34,237(aa)
                            =========       ======      =======        =========        =========
Cash Flow Summary:
 Net cash provided (used)
  by operating
  activities..............  $ 174,320       $4,019      $(2,948)       $ 175,391        $  45,077        $ 2,992
 Net cash used in
  investing activities....   (915,812)         --        75,247         (840,565)        (356,343)           --
 Net cash provided by
  financing activities....    748,133          --       (75,247)         672,886          298,469          1,607
<CAPTION>
                             ProLogis
                            Post-Merger
                             Pro Forma
                            ---------------
<S>                         <C>
Income:
 Rental income............  $   333,615
 Other real estate
  income..................       10,542
 Income from
  unconsolidated
  subsidiaries and JV.....        5,813
 Foreign exchange gains,
  net.....................        5,336
 Interest and other
  income..................        3,351
                            ---------------
   Total income...........      358,657
                            ---------------
Expenses:
 Rental expenses, net of
  recoveries..............       26,621
 General and
  administrative..........       15,547
 Administrative services
  fee paid to affiliate...        1,566
 Depreciation and
  amortization............       98,887
 Interest.................       72,939
 Interest rate hedge
  expense.................       40,285
 Other....................        4,809
                            ---------------
   Total expenses.........      260,654
                            ---------------
Earnings from operations
 before minority interest,
 excluding gains on
 dispositions.............       98,003
Minority interest share in
 net earnings.............        3,997
                            ---------------
Earnings from operations,
 excluding gains on
 dispositions.............       94,006
Less preferred share
 dividends................       38,824
                            ---------------
Net earnings from
 operations attributable
 to common shares.........  $    55,182
                            ===============
Weighted average common
 shares outstanding--
 basic....................      161,023(z)
                            ===============
Weighted average common
 shares outstanding--
 diluted..................      161,261(z)
                            ===============
Per share net earnings
 from operations
 attributable to common
 shares:
 Basic....................  $      0.34(z)
                            ===============
 Diluted..................  $      0.34(z)
                            ===============
Reconciliation of net
 earnings from operations
 attributable to common
 shares to funds from
 operations attributable
 to common shares:
 Net earnings from
  operations attributable
  to common shares........  $    55,182
Add (Deduct):
 Real estate depreciation
  and amortization........       97,992
 Minority interest........        3,952
 Foreign currency
  exchange gain related
  to acquisition of
  affiliate...............       (2,054)
 Interest rate hedge
  expense.................       40,285
 Net foreign exchange
  gain on remeasurement
  of intercompany debt....       (3,417)
 Non-recurring costs......        1,452
 Parent companies' share
  of reconciling items of
  unconsolidated
  subsidiaries and JV.....       33,836
                            ---------------
Funds from operations
 attributable to common
 shares...................  $   227,228(aa)
                            ===============
Weighted average common
 shares outstanding--
 basic....................      166,624(aa)
                            ===============
Weighted average common
 shares outstanding--
 diluted.                       177,018(aa)
                            ===============
Cash Flow Summary:
 Net cash provided (used)
  by operating
  activities..............  $   223,460
 Net cash used in
  investing activities....   (1,196,908)
 Net cash provided by
  financing activities....      972,962
</TABLE>    
     The accompanying notes are an integral part of the pro forma condensed
                       consolidated financial statements.
 
                                      F-7
<PAGE>
 
                                 PROLOGIS TRUST
 
                 PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF
                            EARNINGS FROM OPERATIONS
 
                          Year Ended December 31, 1997
                     (In thousands, except per share data)
                                  (Unaudited)
 
<TABLE>   
<CAPTION>
                                                                                           Pro Forma Merger
                                            Acquisitions                                     Adjustments
                                       ------------------------                       -----------------------------
                                                                       ProLogis
                         ProLogis                    Pro Forma        Pre-Merger
                        Historical     Historical   Adjustments       Pro Forma       Meridian (bb)    ProLogis(cc)
                        ----------     ----------   -----------       ----------      -------------    ------------
<S>                     <C>            <C>          <C>               <C>             <C>              <C>
Income:
 Rental income........  $ 284,533       $21,461(u)   $    --          $ 305,994         $ 101,840        $   --
 Other real estate
  income..............     12,291           --            --             12,291               --             --
 Income from
  unconsolidated
  subsidiaries........      3,278           --            --              3,278             3,223            --
 Interest and other
  income..............      2,392           --            --              2,392             3,191            --
                        ---------       -------      --------         ---------         ---------        -------
   Total income.......    302,494        21,461           --            323,955           108,254            --
                        ---------       -------      --------         ---------         ---------        -------
Expenses:
 Rental expenses, net
  of recoveries.......     27,008         4,175(u)       (131)(v)        31,052            14,111            --  (dd)
 General and
  administrative......      5,742           --            --              5,742             6,037         (4,816)(ee)
 REIT management fee
  paid to affiliate...     17,791           --          2,147 (ii)       19,938               --             --
 Administrative
  services fee paid
  to affiliate........      1,113           --            --              1,113               --             --
 Depreciation and
  amortization........     76,562           --          5,515 (w)        82,077            21,784          8,095 (ff)
 Interest.............     52,704           --         14,499 (x)(y)     67,203            20,050              5 (gg)
 Costs incurred in
  acquiring
  management
  companies from
  affiliate...........     75,376           --            --             75,376               --             --
 Foreign exchange
  loss................      6,376           --            --              6,376               --             --
 Other................      3,891           --            --              3,891               175            --
                        ---------       -------      --------         ---------         ---------        -------
   Total expenses.....    266,563         4,175        22,030           292,768            62,157          3,284
                        ---------       -------      --------         ---------         ---------        -------
Earnings from
 operations before
 minority interest,
 excluding gains on
 dispositions.........     35,931        17,286       (22,030)           31,187            46,097         (3,284)
Minority interest
 share in net
 earnings.............      3,560           --            --              3,560               660            --
                        ---------       -------      --------         ---------         ---------        -------
Earnings from
 operations, excluding
 gains on
 dispositions.........     32,371        17,286       (22,030)           27,627            45,437         (3,284)
Less preferred share
 dividends............     35,318           --            --             35,318             6,518         (2,143)(hh)
                        ---------       -------      --------         ---------         ---------        -------
Net earnings (loss)
 from operations
 attributable to
 common shares........  $  (2,947)      $17,286      $(22,030)        $  (7,691)        $  38,919        $(1,141)
                        =========       =======      ========         =========         =========        =======
Weighted average
 common shares
 outstanding--basic...    100,729 (s)       -- (s)        --  (s)       100,729 (z)        31,674 (z)
                        =========       =======      ========         =========         =========
Weighted average
 common shares
 outstanding--
 diluted..............    100,729 (s)       -- (s)        --  (s)       100,729 (z)        32,131 (z)
                        =========       =======      ========         =========         =========
Per share net earnings
 (loss) from
 operations
 attributable to
 common shares:
 Basic................  $   (0.03)(s)       -- (s)        --  (s)     $   (0.08)(z)     $    1.23 (z)
                        =========       =======      ========         =========         =========
 Diluted..............  $   (0.03)(s)       -- (s)        --  (s)     $   (0.08)(z)     $    1.21 (z)
                        =========       =======      ========         =========         =========
Reconciliation of net
 earnings (loss) from
 operations
 attributable to
 common shares to
 funds from operations
 attributable to
 common shares:
 Net earnings (loss)
  attributable to
  common shares.......  $  (2,947)      $17,286      $(22,030)        $  (7,691)        $  38,919        $(1,141)
Add (Deduct):
 Real estate
  depreciation and
  amortization........     76,275           --          5,515            81,790            21,699          8,095
 Minority interest....      3,560           --            --              3,560               630            --
 Foreign currency
  exchange loss
  related to
  acquisition of
  affiliate...........      6,028           --            --              6,028               --             --
 Net foreign exchange
  loss on
  remeasurement of
  intercompany debt...        348           --            --                348               --             --
 Non-recurring
  costs...............     75,376           --            --             75,376               --             --
 Parent companies'
  share of
  reconciling items
  of unconsolidated
  subsidiaries........      2,419           --            --              2,419             1,514            --
                        ---------       -------      --------         ---------         ---------        -------
Funds from operations
 attributable to
 common shares........  $ 161,059 (t)   $17,286(t)   $(16,515)(t)     $ 161,830 (aa)    $  62,762 (aa)   $ 6,954 (aa)
                        =========       =======      ========         =========         =========        =======
Weighted average
 common shares
 outstanding--basic...    105,919 (t)       -- (t)        --  (t)       105,919 (aa)       32,157 (aa)
                        =========       =======      ========         =========         =========
Weighted average
 common shares
 outstanding--
 diluted..............    116,371 (t)       -- (t)        --  (t)       116,371 (aa)       34,237 (aa)
                        =========       =======      ========         =========         =========
Cash Flow Summary:
 Net cash provided
  (used) by operating
  activities..........  $ 192,273       $17,286      $(16,515)        $ 193,044         $  82,363        $ 3,228
 Net cash used in
  investing
  activities..........   (570,861)          --        (79,385)         (650,246)         (533,745)           --
 Net cash provided by
  financing
  activities..........    398,827           --         79,385           478,212           456,131          2,143
<CAPTION>
                         ProLogis
                        Post-Merger
                         Pro Forma
                        ----------------
<S>                     <C>
Income:
 Rental income........  $   407,834
 Other real estate
  income..............       12,291
 Income from
  unconsolidated
  subsidiaries........        6,501
 Interest and other
  income..............        5,583
                        ----------------
   Total income.......      432,209
                        ----------------
Expenses:
 Rental expenses, net
  of recoveries.......       45,163
 General and
  administrative......        6,963
 REIT management fee
  paid to affiliate...       19,938
 Administrative
  services fee paid
  to affiliate........        1,113
 Depreciation and
  amortization........      111,956
 Interest.............       87,258
 Costs incurred in
  acquiring
  management
  companies from
  affiliate...........       75,376
 Foreign exchange
  loss................        6,376
 Other................        4,066
                        ----------------
   Total expenses.....      358,209
                        ----------------
Earnings from
 operations before
 minority interest,
 excluding gains on
 dispositions.........       74,000
Minority interest
 share in net
 earnings.............        4,220
                        ----------------
Earnings from
 operations, excluding
 gains on
 dispositions.........       69,780
Less preferred share
 dividends............       39,693
                        ----------------
Net earnings (loss)
 from operations
 attributable to
 common shares........  $    30,087
                        ================
Weighted average
 common shares
 outstanding--basic...      140,569 (z)
                        ================
Weighted average
 common shares
 outstanding--
 diluted..............      140,709 (z)
                        ================
Per share net earnings
 (loss) from
 operations
 attributable to
 common shares:
 Basic................  $      0.21 (z)
                        ================
 Diluted..............  $      0.21 (z)
                        ================
Reconciliation of net
 earnings (loss) from
 operations
 attributable to
 common shares to
 funds from operations
 attributable to
 common shares:
 Net earnings (loss)
  attributable to
  common shares.......  $    30,087
Add (Deduct):
 Real estate
  depreciation and
  amortization........      111,584
 Minority interest....        4,190
 Foreign currency
  exchange loss
  related to
  acquisition of
  affiliate...........        6,028
 Net foreign exchange
  loss on
  remeasurement of
  intercompany debt...          348
 Non-recurring
  costs...............       75,376
 Parent companies'
  share of
  reconciling items
  of unconsolidated
  subsidiaries........        3,933
                        ----------------
Funds from operations
 attributable to
 common shares........  $   231,546 (aa)
                        ================
Weighted average
 common shares
 outstanding--basic...      146,290 (aa)
                        ================
Weighted average
 common shares
 outstanding--
 diluted..............      156,742 (aa)
                        ================
Cash Flow Summary:
 Net cash provided
  (used) by operating
  activities..........  $   278,635
 Net cash used in
  investing
  activities..........   (1,183,991)
 Net cash provided by
  financing
  activities..........      936,486
</TABLE>    
 
     The accompanying notes are an integral part of the pro forma condensed
                       consolidated financial statements.
 
                                      F-8
<PAGE>
 
                                PROLOGIS TRUST
 
            NOTES TO PRO FORMA CONDENSED CONSOLIDATED STATEMENTS OF
                           EARNINGS FROM OPERATIONS
 
                   Nine Months Ended September 30, 1998 and
                         Year Ended December 31, 1997
                                  (Unaudited)
                                (In thousands)
          
(s) A reconciliation of the denominator used to calculate basic net earnings
    per ProLogis Common Share to the denominator used to calculate diluted net
    earnings per ProLogis Common Share for the nine months ended September 30,
    1998 is as follows (in thousands, except per Common Share amounts):     
 
<TABLE>   
<CAPTION>
                                               Nine Months Ended September 30,
                                                            1998
                                              ---------------------------------
                                                         Net Pro Forma   Pro
                                              Historical  Adjustments   Forma
                                              ---------- ------------- --------
      <S>                                     <C>        <C>           <C>
      Net earnings from operations
       attributable to ProLogis Common
       Shares...............................   $ 38,810      $(40)     $ 38,770
                                               ========      ====      ========
      Weighted average ProLogis Common
       Shares outstanding--basic............    121,183       --        121,183
      Incremental options and warrants......        238       --            238
                                               --------      ----      --------
      Adjusted weighted-average ProLogis
       Common Shares outstanding--diluted
       (1)..................................    121,421       --        121,421
                                               ========      ====      ========
      Per share net earnings from operations
       attributable to ProLogis Common
       Shares:
        Basic...............................   $   0.32      $--       $   0.32
                                               ========      ====      ========
        Diluted (1).........................   $   0.32      $--       $   0.32
                                               ========      ====      ========
</TABLE>    
     --------
        
     (1) For the nine months ended September 30, 1998, there were
         10,156 weighted average Series B Preferred Shares and
         5,070 limited partnership units outstanding on an as-
         converted basis that were not assumed to be converted
         into ProLogis Common Shares for purposes of calculating
         diluted earnings per ProLogis Common Share as the effect
         was antidilutive.     
     
  Because ProLogis has a net loss for the year ended December 31, 1997
  (historical and pro forma), the effect of all potentially dilutive ProLogis
  Common Shares is anti-dilutive. Consequently, basic and diluted loss per
  Common Share are the same.     
   
(t) Funds from operations represent ProLogis' net earnings (computed in
    accordance with generally accepted accounting principles ("GAAP")) before
    minority interest, before gains or losses from debt restructuring, before
    gains or losses on disposition of depreciated real estate, before gains or
    losses from mark to market adjustments resulting from the remeasurement
    (based on current foreign currency exchange rates) of intercompany and
    other debt of ProLogis' foreign subsidiaries, before deferred tax benefits
    and deferred tax expenses of ProLogis' taxable subsidiaries, before
    significant non-recurring items that materially distort the comparative
    measurement of company performance over time, plus real estate
    depreciation and amortization (exclusive of amortization of loan costs),
    and after adjustments for unconsolidated subsidiaries calculated to
    compute their funds from operations on the same basis as ProLogis.
    ProLogis believes that funds from operations is helpful to a reader as a
    measure of the performance of an equity real estate investment trust
    ("REIT") because, along with cash flow from operating activities,
    investing activities and financing activities, it provides a reader with
    an indication of the ability of ProLogis to incur and service debt, to
    make capital expenditures and to fund other cash needs. The funds from
    operations measure presented by ProLogis, while consistent with the
    National Association of Real Estate Investment     
 
                                      F-9
<PAGE>
 
                                PROLOGIS TRUST
 
            NOTES TO PRO FORMA CONDENSED CONSOLIDATED STATEMENTS OF
                     EARNINGS FROM OPERATIONS--(Continued)
      
   Trusts' definition, will not be comparable to similarly titled measure of
   other REITs which do not compute funds from operations in a manner
   consistent with ProLogis. Funds from operations is not intended to
   represent cash made available to shareholders. Funds from operations should
   not be considered as an alternative to net earnings or any other GAAP
   measurement of performance as an indicator of ProLogis' operating
   performance, or as an alternative to cash flows from operating, investing
   or financing activities as a measure of liquidity.     
     
  A reconciliation of the numerator and denominator used to calculate basic
  funds from operations per ProLogis Common Share to the numerator and
  denominator used to calculate diluted funds from operations per ProLogis
  Common Share for the periods indicated is as follows (in thousands):     
 
<TABLE>   
<CAPTION>
                                              Nine Months Ended September 30,
                                                           1998
                                             ---------------------------------
                                                        Net Pro Forma   Pro
                                             Historical  Adjustments   Forma
                                             ---------- ------------- --------
      <S>                                    <C>        <C>           <C>
      Funds from operations attributable to
       ProLogis Common Shares--basic .......  $171,148     $1,071     $172,219
      Series B preferred share dividends....    10,370        --        10,370
                                              --------     ------     --------
      Adjusted funds from operations
       attributable to ProLogis Common
       Shares...............................  $181,518     $1,071     $182,589
                                              ========     ======     ========
      Weighted average ProLogis Common
       Shares outstanding--basic (1)........   126,253        --       126,253
      Weighted average conversion of Series
       B preferred shares...................    10,156        --        10,156
      Incremental options and warrants......       238        --           238
                                              --------     ------     --------
      Adjusted weighted average ProLogis
       Common Shares outstanding--diluted...   136,647        --       136,647
                                              ========     ======     ========
<CAPTION>
                                               Year Ended December 31, 1997
                                             ---------------------------------
                                                        Net Pro Forma   Pro
                                             Historical  Adjustments   Forma
                                             ---------- ------------- --------
      <S>                                    <C>        <C>           <C>
      Funds from operations attributable to
       ProLogis Common Shares--basic .......  $161,059     $  771     $161,830
      Series B preferred share dividends....    14,088        --        14,088
                                              --------     ------     --------
      Adjusted funds from operations
       attributable to ProLogis Common
       Shares...............................  $175,147     $  771     $175,918
                                              ========     ======     ========
      Weighted average ProLogis Common
       Shares outstanding--basic (1)........   105,919        --       105,919
      Weighted average conversion of Series
       B preferred shares...................    10,319        --        10,319
      Incremental options and warrants......       133        --           133
                                              --------     ------     --------
      Adjusted weighted average ProLogis
       Common Shares outstanding--diluted...   116,371        --       116,371
                                              ========     ======     ========
</TABLE>    
     --------
        
     (1) For purposes of calculating "basic" funds from
         operations per ProLogis Common Share, ProLogis uses the
         methodology prescribed by GAAP as adjusted to assume
         conversion of all limited partnership units to ProLogis
         Common Shares.     
 
                                     F-10
<PAGE>
 
                                 PROLOGIS TRUST
 
            NOTES TO PRO FORMA CONDENSED CONSOLIDATED STATEMENTS OF
                     EARNINGS FROM OPERATIONS--(Continued)
   
(u) Represents historical revenues and certain expenses of the facilities
    acquired by ProLogis subsequent to December 31, 1996 as detailed in the
    Current Report on Form 8-K filed by ProLogis on December 3, 1998. The total
    historical acquisition adjustment reflects the period from January 1, 1997
    to the earlier of the respective dates of acquisition, December 31, 1997 or
    September 30, 1998 as applicable (results of operations after the dates of
    acquisition are included in ProLogis' historical operating results).
    Historical acquisition revenues and certain expenses exclude amounts which
    would not be comparable to the proposed future operations of the facilities
    such as certain interest expense, interest income, income taxes and
    depreciation.     
   
(v) Represents the adjustment to historical property management expenses for
    the periods indicated to reflect these expenses at the level they would
    have been had ProLogis owned the facilities as of January 1, 1997.     
   
(w) Reflects the recognition of depreciation expense associated with the pro
    forma acquisitions, discussed in note (u), for the periods indicated. This
    depreciation adjustment is based on ProLogis' purchase cost assuming asset
    lives of 30 years. Depreciation is computed using a straight-line method.
           
(x) Reflects the recognition of $643,000 for the nine months ended September
    30, 1988 and $1,823,000 for the year ended December 31, 1997 of interest
    expense on mortgage debt for the periods indicated as if the debt had been
    assumed by ProLogis on January 1, 1997. The mortgage debt assumed in
    conjunction with the acquisition of certain of the facilities acquired
    subsequent to December 31, 1996 discussed in note (u) bears interest at
    fixed rates ranging from 7.75% to 10.60%.     
   
(y) Represents $2,276,000 for the nine months ended September 30, 1988 and
    $12,676,000 for the year ended December 31, 1997 of additional interest
    expense on senior unsecured debt securities. The adjustment assumes that
    the issuance of senior unsecured debt securities necessary to fund the pro
    forma acquisitions discussed in note (u) occurred on January 1, 1997. The
    adjustment is based on a weighted average effective interest rate of 7.05%
    for the nine months ended September 30, 1998 and 7.17% for the year ended
    December 31, 1997.     
          
(z) A reconciliation of the denominator used to calculate basic net earnings
    per common share to the denominator used to calculate diluted net earnings
    per common share for the periods indicated for ProLogis and Meridian on a
    pre-Merger pro forma basis and for ProLogis on a pro forma post-Merger
    basis is as follows (in thousands, except per share amounts):     
 
<TABLE>   
<CAPTION>
                                 Nine Months Ended September 30, 1998
                                 ----------------------------------------
                                       Pre-Merger
                                 -------------------------    ProLogis
                                  ProLogis      Meridian     Post-Merger
                                  Pro Forma     Pro Forma     Pro Forma
                                 ------------  -----------  -------------
     <S>                         <C>           <C>          <C>
     Net earnings from
      operations attributable
      to common shares.........  $     38,770   $    16,619  $     55,182
                                 ============   ===========  ============
     Weighted average common
      shares outstanding--
      basic....................       121,183        31,674       161,023(1)
     Incremental options and
      warrants.................           238           457           238
                                 ------------   -----------  ------------
     Adjusted weighted-average
      common shares
      outstanding--diluted.....       121,421        32,131       161,261(1)(2)
                                 ============   ===========  ============
     Per share net earnings
      from operations
      attributable to common
      shares:
       Basic...................  $       0.32   $      0.52  $       0.34
                                 ============   ===========  ============
       Diluted.................  $       0.32   $      0.52  $       0.34(2)
                                 ============   ===========  ============
</TABLE>    
 
                                      F-11
<PAGE>
 
                                 PROLOGIS TRUST
 
            NOTES TO PRO FORMA CONDENSED CONSOLIDATED STATEMENTS OF
                     EARNINGS FROM OPERATIONS--(Continued)
 
 
<TABLE>   
<CAPTION>
                                              Year Ended December 31, 1997
                                              ----------------------------
                                                  Pre-Merger
                                              ------------------- ProLogis
                                                                   Post-
                                                                   Merger
                                              ProLogis  Meridian    Pro
                                              Pro Forma Pro Forma  Forma
                                              --------- --------- --------
     <S>                                      <C>       <C>       <C>
     Net earnings (loss) from operations
      attributable to common shares.........   $(7,691)  $38,919  $30,087
                                               =======   =======  =======
     Weighted average common shares
      outstanding--basic....................   100,729    31,674  140,569(1)
     Incremental options and warrants.......       --        457      140
                                               -------   -------  -------
     Adjusted weighted-average common shares
      outstanding--diluted..................   100,729    32,131  140,709(1)(3)
                                               =======   =======  =======
     Per share net earnings from operations
      attributable to common shares:
       Basic................................   $ (0.08)  $  1.23  $  0.21
                                               =======   =======  =======
       Diluted..............................   $ (0.08)  $  1.21  $  0.21(3)
                                               =======   =======  =======
</TABLE>    
    --------
       
    (1) The ProLogis post-Merger pro forma weighted average common
        shares outstanding reflects the following adjustments based
        on the assumption that the Merger occurred as of January 1,
        1997: (i) the assumed pre-Merger conversion of Meridian's
        Series B preferred stock to Meridian common stock; (ii) the
        assumed pre-Merger exercise of all of Meridian's outstanding
        options and warrants; and, (iii) the increase resulting from
        the issuance of 1.10 ProLogis Common Shares for one share of
        Meridian common stock.     
       
    (2) For the nine months ended September 30, 1998, there were
        10,156 weighted average ProLogis Series B Preferred Shares
        and 5,601 weighted average limited partnership units
        outstanding on an as-converted basis that were not assumed
        to be converted into ProLogis Common Shares for purposes of
        calculating diluted earnings per ProLogis Common Share as
        the effect was antidilutive.     
       
    (3) For the year ended December 31, 1997, there were 10,319
        weighted average ProLogis Series B Preferred Shares and
        5,721 weighted average limited partnership units outstanding
        on an as-converted basis that were not assumed to be
        converted into ProLogis Common Shares for purposes of
        calculating diluted earnings per ProLogis Common Share as
        the effect was antidilutive.     
   
(aa) Funds from operations is defined in note (t). Funds from operations was a
     specific consideration of ProLogis' Board of Trustees in evaluating the
     Merger. The funds from operations measures presented by ProLogis and
     Meridian are comparable. However, while consistent with the National
     Association of Real Estate Investment Trusts' definition ProLogis' and
     Meridian's funds from operations measures will not be comparable to
     similarly titled measure of other REITs which do not compute funds from
     operations in a manner consistent with ProLogis and Meridian. Funds from
     operations are not intended to represent cash made available to
     shareholders. Funds from operations should not be considered as an
     alternative to net earnings or any other GAAP measurement of performance
     as an indicator of ProLogis' or Meridian's operating performance, or as an
     alternative to cash flows from operating, investing or financing
     activities as a measure of liquidity.     
     
  A reconciliation of the information used to calculate basic and diluted
  funds from operations and weighted average common shares for the basic and
  diluted (as defined by GAAP) presentations for the periods     
 
                                      F-12
<PAGE>
 
                                 PROLOGIS TRUST
 
            NOTES TO PRO FORMA CONDENSED CONSOLIDATED STATEMENTS OF
                     EARNINGS FROM OPERATIONS--(Continued)
     
  indicated for ProLogis and Meridian on a pre-Merger pro forma basis and for
  ProLogis on a pro forma post-Merger basis is as follows (in thousands):
      
<TABLE>   
<CAPTION>
                                              Nine Months Ended September 30,
                                                           1998
                                              -------------------------------
                                                  Pre-Merger
                                              -------------------  ProLogis
                                              ProLogis  Meridian  Post-Merger
                                              Pro Forma Pro Forma  Pro Forma
                                              --------- --------- -----------
     <S>                                      <C>       <C>       <C>
     Funds from operations attributable to
      common shares--basic (1)..............  $172,219   $49,145   $227,228
     Convertible Series B preferred share
      dividends.............................    10,370     1,607     10,370
                                              --------   -------   --------
     Adjusted funds from operations
      attributable to common shares.........  $182,589   $50,752   $237,598
                                              ========   =======   ========
     Weighted average common shares
      outstanding--basic (1)................   126,253    32,157    166,624(2)
     Weighted average conversion of Series B
      preferred shares......................    10,156     1,623     10,156
     Incremental options and warrants.......       238       457        238
                                              --------   -------   --------
     Adjusted weighted average common shares
      outstanding--diluted..................   136,647    34,237    177,018(2)
                                              ========   =======   ========
<CAPTION>
                                               Year Ended December 31, 1997
                                              -------------------------------
                                                  Pre-Merger
                                              -------------------  ProLogis
                                              ProLogis  Meridian  Post-Merger
                                              Pro Forma Pro Forma  Pro Forma
                                              --------- --------- -----------
     <S>                                      <C>       <C>       <C>
     Funds from operations attributable to
      common shares--basic (1)..............  $161,830   $62,762   $231,546
     Convertible Series B preferred share
      dividends.............................    14,088     2,143     14,088
                                              --------   -------   --------
     Adjusted funds from operations
      attributable to common shares.........  $175,918   $64,905   $245,634
                                              ========   =======   ========
     Weighted average common shares
      outstanding--basic (1)................   105,919    32,157    146,290(2)
     Weighted average conversion of Series B
      preferred shares......................    10,319     1,623     10,319
     Incremental options and warrants.......       133       457        133
                                              --------   -------   --------
     Adjusted weighted average common shares
      outstanding--diluted..................   116,371    34,237    156,742(2)
                                              ========   =======   ========
</TABLE>    
     --------
        
     (1) For purposes of calculating "basic" funds from operations
         per common share, ProLogis and Meridian use the
         methodology prescribed by GAAP as adjusted to assume
         conversion of all limited partnership units to common
         shares (5,070 and 5,190 on a weighted average basis for
         ProLogis on a pre-Merger pro forma basis for the nine
         months ended September 30, 1998 and the year ended
         December 31, 1997, respectively; 483 on a weighted average
         basis for Meridian on a pre-Merger pro forma basis for
         both periods indicated; and 5,601 and 5,721 on a weighted
         average basis for ProLogis on a pro forma post-Merger
         basis for the nine months ended September 30, 1998 and the
         year ended December 31, 1997, respectively).     
        
     (2) The ProLogis post-Merger pro forma weighted average common
         shares outstanding reflects the following adjustments
         based on the assumption that the     
 
                                      F-13
<PAGE>
 
                                 PROLOGIS TRUST
 
            NOTES TO PRO FORMA CONDENSED CONSOLIDATED STATEMENTS OF
                     EARNINGS FROM OPERATIONS--(Continued)
           
        Merger occurred as of January 1, 1997: (i) the assumed pre-
        Merger conversion of Meridian's Series B preferred stock to
        common stock; (ii) the assumed pre-Merger exercise of all
        of Meridian's outstanding options and warrants; and, (iii)
        the increase resulting from the issuance of 1.10 ProLogis
        Common Shares for one share of Meridian common stock.     
   
(bb) Reference is made to Meridian's Current Report on Form 8-K filed on
     December 7, 1998 with the Securities and Exchange Commission for the
     source of Meridian's pre-Merger pro forma statements of earnings from
     operations for the nine months ended September 30, 1998 and the year ended
     December 31, 1997. The pre-Merger pro forma statements of earnings from
     operations give effect to the acquisitions of real estate assets
     subsequent to December 31, 1996 as if the acquisitions had occurred as of
     January 1, 1997. Certain amounts have been reclassified to conform to
     ProLogis' financial statement presentation.     
   
(cc) The accompanying pro forma condensed consolidated statements of earnings
     from operations for the nine months ended September 30, 1998 and the year
     ended December 31, 1997 do not give effect to the fully stabilized results
     of operations related to: (i) facilities under development of both
     ProLogis and Meridian at September 30, 1998 with a combined total budgeted
     completion cost of $544.2 million; or (ii) completed developments of
     ProLogis and Meridian during 1997 and the first nine months of 1998 with a
     total combined budgeted completion cost of $678.3 million. Management
     believes that there will be sufficient depth of management and personnel
     such that additional facilities can be developed and managed without a
     significant increase in personnel or other costs. As a result, management
     believes that the accretion in net earnings from operations and funds from
     operations from the Merger reflected in the pro forma condensed
     consolidated statements of earnings from operations is not indicative of
     the full accretion that is expected to occur on a post-Merger basis.     
   
(dd) During the nine months ended September 30, 1998 and the year ended
     December 31, 1997, Meridian utilized the services of third-party
     management companies to perform property management functions for
     substantially all of its operating facilities. Meridian paid these
     management companies a fee based upon the revenues generated by the
     facility. ProLogis utilizes third-party management companies on a very
     limited basis. Substantially all of the property management functions
     related to ProLogis' operating facilities are performed by employees of
     ProLogis. ProLogis expects that after consummation of the Merger, the
     property management functions related to the Meridian operating facilities
     acquired will be performed by ProLogis employees and that the existing
     Meridian third-party management contracts will be terminated. Management
     of ProLogis expects that additional employees (including property
     accounting personnel) will be needed as these property management
     functions are transferred from the third-party management companies.
     However, it is expected that, because approximately 98% of the Meridian
     facilities are located in markets where ProLogis currently owns and
     manages assets, certain expense savings will be achieved. While ProLogis
     expects to realize lower property management costs related to the Meridian
     operating facilities than had been incurred by Meridian, no estimate of
     these expected future cost savings has been included in the pro forma
     financial statements. Such adjustment is not included because these costs
     savings cannot be factually supported within the SEC regulations governing
     the preparation of the pro forma financial statements until such time as
     the third-party agreements are terminated and the property management
     function is transferred to ProLogis.     
          
(ee) This adjustment represents the elimination of certain specifically
     identifiable costs of Meridian that, due to certain terms of the Merger,
     will not be incurred by ProLogis after the Merger is consummated. Such
     costs are:     
     
  .Personnel costs and related employee benefits and expenses for the
   Meridian administrative employees: These employees will be terminated
   under Section 5.9 of the Merger Agreement. These employees are     
 
                                      F-14
<PAGE>
 
                                 PROLOGIS TRUST
 
            NOTES TO PRO FORMA CONDENSED CONSOLIDATED STATEMENTS OF
                     EARNINGS FROM OPERATIONS--(Continued)
      
   not related to the property management function, but rather perform
   corporate functions specific to the Meridian corporate entity. These
   functions are duplicative with the functions performed currently by
   ProLogis employees.     
     
  .Directors fees and costs: The Meridian corporate entity will cease to
   exist after the Merger, therefore the Board of Directors will no longer be
   in existence.     
     
  .Professional fees (including auditing, accounting, legal, stock
   registration and consulting): These costs will not be incurred as the
   Meridian corporate entity will cease to exist after the Merger.
   Accordingly, there will be no entity to incur these costs and Meridian
   will have no publicly-traded securities.     
   
  While the costs noted above will not be incurred by Meridian after the
Merger, ProLogis does expect that there will be incremental increases in
certain of its corporate general and administrative costs. ProLogis has
determined these increases to be related to the following changes in its
corporate operations directly as a result of the Merger:     
     
  .Legal, auditing and accounting fees will increase because ProLogis will be
   acquiring approximately $1.5 billion of additional assets aggregating
   approximately 33.5 million square feet of industrial distribution
   facilities.     
     
  .Stock transfer fees, proxy solicitation and shareholder relations costs
   will increase because ProLogis will be issuing approximately 39.8 million
   additional ProLogis Common Shares and 2.0 million Series E preferred
   shares.     
     
  .Under Section 5.19 of the Merger Agreement, ProLogis will add two members
   to its Board of Trustees resulting in additional fees and expenses.     
   
  The adjustment is computed as follows (in thousands):     
 
<TABLE>   
<CAPTION>
                                                     Nine Months
                                                        Ended      Year Ended
                                                    September 30, December 31,
                                                        1998          1997
                                                    ------------- ------------
     <S>                                            <C>           <C>
     Elimination of Meridian costs:
       Personnel and related.......................    $(2,978)     $(4,100)
       Professional fees...........................     (1,135)        (863)
       Directors fees and expenses.................       (165)        (216)
     Incremental ProLogis costs:
       Accounting, auditing and legal..............        140          214
       Stock transfer, proxy and shareholder
        relations..................................         68          101
       Directors fees and expenses.................         55           48
                                                       -------      -------
         Total adjustment..........................    $(4,015)     $(4,816)
                                                       =======      =======
</TABLE>    
   
  The incremental ProLogis costs are computed on a pro rata basis based upon
the additional pro forma revenues generated by the Merger (for accounting,
auditing and legal fees), additional shares outstanding after the Merger (for
stock transfer, proxy and shareholder relations) and the increase in the number
of trustees.     
   
  ProLogis expects that additional general and administrative cost savings
could result from the Merger. However, such savings could not be factually
supported and quantified within the SEC regulations governing the preparation
of the pro forma financial statements. Consequently, no additional adjustment
has been made to the pro forma financial statements.     
 
                                      F-15
<PAGE>
 
                                 PROLOGIS TRUST
 
            NOTES TO PRO FORMA CONDENSED CONSOLIDATED STATEMENTS OF
                     EARNINGS FROM OPERATIONS--(Continued)
   
(ff) Represents the net increase in depreciation of real estate as a result of
     the step-up in basis to record Meridian's real estate at estimated fair
     value for the periods indicated (in thousands):     
 
<TABLE>   
<CAPTION>
                                                      Nine Months
                                                         Ended      Year Ended
                                                     September 30, December 31,
                                                         1998          1997
                                                     ------------- ------------
     <S>                                             <C>           <C>
     Step-up in real estate basis (see note (e))....   $307,978      $307,978
     Less amount of step-up allocated to:
       Land held for development....................        --            --
       Developments in progress.....................    (20,953)      (20,953)
       Land portion of operating facilities.........    (42,372)      (42,372)
       Participating mortgage.......................     (1,795)       (1,795)
                                                       --------      --------
     Depreciable portion of step-up in basis........    242,858       242,858
                                                       --------      --------
     Estimated annual incremental depreciation
      expense based on an assumed weighted average
      life of 30 years..............................      8,095         8,095
     Proration factor...............................       0.75           1.0
                                                       --------      --------
         Estimated incremental depreciation.........   $  6,071      $  8,095
                                                       ========      ========
</TABLE>    
   
(gg) Represents the net change in interest expense as a result of the following
     items for the periods indicated (in thousands):     
<TABLE>   
<CAPTION>
                                                      Nine Months
                                                         Ended      Year Ended
                                                     September 30, December 31,
                                                         1998          1997
                                                     ------------- ------------
     <S>                                             <C>           <C>
     Decrease related to the pay down on Meridian's
      line of credit as a result of the assumed
      exercise of options and warrants described in
      note (j) (1)..................................    $(2,584)     $(3,360)
     Decrease based on the pro forma interest rates
      resulting from the adjustments of Meridian's
      debt to its estimated fair market value as
      described in note (m) (2).....................       (303)        (404)
     Decrease in Meridian loan cost amortization
      related to the elimination of Meridian
      deferred loan costs as described in note (i)..       (962)      (1,179)
     Increase related to additional borrowings on
      the line of credit of $16,613 to fund the
      Merger-related costs identified in note (e)
      and the assumed cash payments to Meridian
      stockholders of $56,695 described in note (k)
      (3)...........................................      3,607        4,948
                                                        -------      -------
       Total adjustment.............................    $  (242)     $     5
                                                        =======      =======
</TABLE>    
    --------
    (1) Computed using Meridian's actual weighted average interest
        rate of 7.13% for the nine months ended September 30, 1998
        and 6.96% for the year ended December 31, 1997.
    (2) Based on effective interest rates determined to be available
        to the combined company (7.20% for secured long-term debt
        and 7.95%-8.05% for unsecured long-term debt).
    (3) Computed using ProLogis' actual weighted average interest
        rate of 6.56% for the nine months ended September 30, 1998
        and 6.75% for the year ended December 31, 1997.
 
                                      F-16
<PAGE>
 
                                 PROLOGIS TRUST
 
            NOTES TO PRO FORMA CONDENSED CONSOLIDATED STATEMENTS OF
                     EARNINGS FROM OPERATIONS--(Continued)
          
(hh) Represents the elimination of dividends on the Meridian Series B preferred
     stock for the periods indicated that is assumed to be converted to shares
     of Meridian common stock as of January 1, 1997. See note (j).     
          
(ii) Represents the additional REIT management fee that would have been paid
     for the period from January 1, 1997 to September 8, 1997 (the period the
     REIT management agreement was in effect resulting from the additional cash
     flow, as defined, generated by the pro forma acquisitions discussed in
     note (u).     
 
 
                                      F-17
<PAGE>
 
                                                                         ANNEX A
                                    
                                 RESTATED     
                          AGREEMENT AND PLAN OF MERGER
 
                                    between
 
                                 PROLOGIS TRUST
 
                                      and
 
                        MERIDIAN INDUSTRIAL TRUST, INC.
 
                         Dated as of November 16, 1998
                                     
                                  and as     
                         
                      Amended as of February 3, 1999     
 
 
<PAGE>
 
                               TABLE OF CONTENTS
 
<TABLE>   
<CAPTION>
                                                                            Page
                                                                            ----
                                   ARTICLE I
 
                                   The Merger
 
 <C>  <S>                                                                   <C>
 1.1  The Merger; Effective Time of the Merger............................   A-1
 1.2  Closing.............................................................   A-2
 1.3  Effect of the Merger................................................   A-2
 1.4  Declaration of Trust and Bylaws.....................................   A-2
 1.5  Trustees and Officers...............................................   A-2
 
                                   ARTICLE II
 
                   Effect of the Merger on the Capital Stock
                of the Company and MIT; Exchange of Certificates
 
 2.1  Effect of the Merger on Capital Stock...............................   A-2
      (a)Shares of Beneficial Interest of the Company.....................   A-2
      (b)Capital Stock of MIT.............................................   A-3
      (c)Treatment of MIT Stock Options...................................   A-3
      (d)Treatment of MIT Warrants........................................   A-3
      (e)Impact of Stock Splits, etc......................................   A-3
 2.2  Exchange of Certificates............................................   A-3
      (a)Exchange Agent...................................................   A-3
      (b)Exchange Procedures..............................................   A-4
      (c)Distributions with Respect to Unexchanged Shares.................   A-5
      (d)No Further Ownership Rights......................................   A-5
      (e)Intentionally Omitted............................................   A-6
      (f)Termination of Exchange Fund.....................................   A-6
      (g)No Liability.....................................................   A-6
      (h)Lost, Stolen, or Destroyed Certificates..........................   A-6
      (i)Withholding of Tax...............................................   A-6
 2.3  Dissenting Shares...................................................   A-6
 
                                  ARTICLE III
 
                         Representations and Warranties
 
 3.1  Representations and Warranties of MIT...............................   A-7
      (a)Organization, Standing and Power.................................   A-7
      (b)Capital Structure................................................   A-7
      (c)Authority; No Violations; Consents and Approvals.................   A-8
      (d)SEC Documents....................................................   A-9
      (e)Information Supplied.............................................  A-10
      (f)Absence of Certain Changes or Events.............................  A-10
      (g)No Undisclosed Material Liabilities..............................  A-11
      (h)No Default.......................................................  A-11
      (i)Compliance with Applicable Laws..................................  A-11
      (j)Litigation.......................................................  A-11
      (k)Taxes............................................................  A-12
      (l)Pension and Benefit Plans; ERISA.................................  A-13
</TABLE>    
 
                                       i
<PAGE>
 
<TABLE>   
<CAPTION>
                                                                          Page
                                                                          ----
 <C>  <S>                                                                 <C>
      (m)Labor Matters..................................................  A-14
      (n)Intangible Property............................................  A-15
      (o)Environmental Matters..........................................  A-15
      (p)Properties.....................................................  A-17
      (q)Insurance......................................................  A-17
      (r)Opinion of Financial Advisor...................................  A-17
      (s)Vote Required..................................................  A-18
      (t)Beneficial Ownership of Company Common Stock...................  A-18
      (u)Brokers........................................................  A-18
      (v)Investment Company Act of 1940.................................  A-18
      (w)Amendment to Rights Agreement; State Takeover Laws.............  A-18
      (x)Contracts......................................................  A-18
 3.2  Representations and Warranties of the Company.....................  A-19
      (a)Organization, Standing and Power...............................  A-19
      (b)Capital Structure..............................................  A-19
      (c)Authority; No Violations, Consents and Approvals...............  A-20
      (d)SEC Documents..................................................  A-22
      (e)Information Supplied...........................................  A-22
      (f)Absence of Certain Changes or Events...........................  A-22
      (g)No Undisclosed Material Liabilities............................  A-23
      (h)No Default.....................................................  A-23
      (i)Compliance with Applicable Laws................................  A-23
      (j)Litigation.....................................................  A-23
      (k)Taxes..........................................................  A-24
      (l)Pension and Benefit Plans; ERISA...............................  A-25
      (m)Labor Matters..................................................  A-26
      (n)Intangible Property............................................  A-27
      (o)Environmental Matters..........................................  A-27
      (p)Properties.....................................................  A-28
      (q)Insurance......................................................  A-29
      (r)Opinion of Financial Advisor...................................  A-29
      (s)Vote Required..................................................  A-29
      (t)Beneficial Ownership of MIT Common Stock and MIT Preferred
      Stock.............................................................  A-29
      (u)Brokers........................................................  A-29
      (v)Investment Company Act of 1940.................................  A-29
      (w)Contracts......................................................  A-29
 
                                   ARTICLE IV
 
                         Covenants Relating to Conduct
                         of Business Pending the Merger
 
 4.1  Conduct of Business by MIT and the Company Pending the Merger.....  A-30
      (a)Ordinary Course................................................  A-30
      (b)Dividends; Changes in Stock....................................  A-30
      (c)Issuance of Securities.........................................  A-31
      (d)Governing Documents............................................  A-32
      (e)No Acquisitions................................................  A-32
      (f)No Dispositions................................................  A-32
      (g)No Dissolution, Etc............................................  A-32
      (h)Accounting.....................................................  A-32
      (i)Affiliate Transactions.........................................  A-32
</TABLE>    
 
                                       ii
<PAGE>
 
<TABLE>   
<CAPTION>
                                                                          Page
                                                                          ----
 <C>  <S>                                                                 <C>
      (j)Insurance......................................................  A-32
      (k)Tax Matters....................................................  A-32
      (l)Certain Employee Matters.......................................  A-32
      (m)Indebtedness...................................................  A-33
      (n)Agreements.....................................................  A-33
 4.2  No Solicitation by MIT............................................  A-33
 
                                   ARTICLE V
 
                             Additional Agreements
 
 5.1  Preparation of S-4 and the Joint Proxy Statement..................  A-34
 5.2  Letter of MIT's Accountants.......................................  A-34
 5.3  Letter of the Company's Accountants...............................  A-35
 5.4  Access to Information.............................................  A-35
 5.5  Stockholders Meetings.............................................  A-35
 5.6  Approvals; Best Efforts...........................................  A-35
 5.7  Agreements of Rule 145 Affiliates.................................  A-36
 5.8  Authorization for Shares and Stock Exchange Listing...............  A-36
 5.9  Employee Matters..................................................  A-36
 5.10 Stock Options.....................................................  A-36
 5.11 MIT Warrants......................................................  A-37
 5.12 Indemnification; Directors' and Officers' Insurance...............  A-38
 5.13 Agreement to Defend...............................................  A-38
 5.14 Public Announcements..............................................  A-38
 5.15 Other Actions.....................................................  A-39
 5.16 Advice of Changes; SEC Filings....................................  A-39
 5.17 Reorganization....................................................  A-39
 5.18 Conveyance Taxes..................................................  A-39
 5.19 Board of Trustees.................................................  A-39
 5.20 Registrations Rights Agreements...................................  A-39
 5.21 Indemnification Agreements........................................  A-40
 5.22 Redemption or Conversion of MIT Series B Preferred Stock..........  A-40
                    Investigation and Agreement by the Parties; No Other
 5.23 Representations or Warranties.....................................  A-40
 5.24 Partnership Agreements............................................  A-41
 5.25 MIT Senior Notes..................................................  A-41
 5.26 MIT Voting Agreement..............................................  A-41
 
                                   ARTICLE VI
 
                              Conditions Precedent
 
 6.1  Conditions to Each Party's Obligation to Effect the Merger........  A-41
      (a)MIT Stockholder Approval.......................................  A-41
      (b)Company Stockholder Approval...................................  A-41
      (c)Exchange Listing...............................................  A-41
      (d)Other Approvals................................................  A-41
      (e)S-4............................................................  A-42
      (f)No Injunctions or Restraints...................................  A-42
      (g)Meridian Refrigerated Stock Purchase Agreement.................  A-42
      (h)Meridian Point Properties Stock Purchase Agreement.............  A-42
 6.2  Conditions to Obligations of the Company..........................  A-42
      (a)Representations and Warranties of MIT..........................  A-42
      (b)Performance of Obligations of MIT..............................  A-42
</TABLE>    
 
                                      iii
<PAGE>
 
<TABLE>   
<CAPTION>
                                                                            Page
                                                                            ----
 <C>  <S>                                                                   <C>
      (c)Tax Opinions.....................................................  A-42
      (d)Director and Officer Loans.......................................  A-43
      (e)MIT Series B Preferred Stock.....................................  A-43
 6.3  Conditions to Obligations of MIT....................................  A-43
      (a)Representations and Warranties of the Company....................  A-43
      (b)Performance of Obligations of the Company........................  A-43
      (c)Tax Opinions.....................................................  A-43
 
                                  ARTICLE VII
 
                           Termination and Amendment
 
 7.1  Termination.........................................................  A-44
 7.2  Effect of Termination...............................................  A-45
 7.3  Amendment...........................................................  A-46
 7.4  Extension; Waiver...................................................  A-47
 
                                  ARTICLE VIII
 
                               General Provisions
 
 8.1  Payment of Expenses.................................................  A-47
 8.2  Nonsurvival of Representations, Warranties and Agreements...........  A-47
 8.3  Notices.............................................................  A-48
 8.4  Interpretation......................................................  A-48
 8.5  Counterparts........................................................  A-48
 8.6  Entire Agreement; No Third Party Beneficiaries......................  A-48
 8.7  Governing Law.......................................................  A-49
 8.8  No Remedy in Certain Circumstances..................................  A-49
 8.9  Assignment..........................................................  A-49
 8.10 Specific Performance................................................  A-49
 8.11 Director, Trustee and Officer Liability.............................  A-49
 8.12 Schedule Definitions................................................  A-49
</TABLE>    
 
EXHIBITS:
 
<TABLE>
<S>              <C>
Exhibit A         Form of Articles Supplementary Classifying 2,000,000 Shares of Company Cumulative
                  Redeemable Preferred Stock
Exhibit B         Individuals to be added to Board of Trustees
Exhibit C         Form of Rule 145 Affiliate Agreement
Exhibit D         Form of Indemnification Agreement
Exhibit E         Stock Purchase Agreement--Meridian Point Properties, Inc.
Exhibit F         Stock Purchase Agreement--Meridian Refrigerated, Inc.
 
DISCLOSURE SCHEDULES:
 
MIT Disclosure Schedule:
 
Schedule 3.1(a)    MIT Significant Subsidiaries
Schedule 3.1(b)    MIT Subsidiary Ownership
Schedule 3.1(c)    MIT Conflicts
Schedule 3.1(f)    MIT Certain Changes or Events
Schedule 3.1(g)    MIT Undisclosed Liabilities
Schedule 3.1(j)    MIT Litigation
</TABLE>
 
                                       iv
<PAGE>
 
<TABLE>   
 <C>             <S>
 Schedule 3.1(k) MIT Tax Information
 Schedule 3.1(l) MIT Pension and Benefit Plan and Related Information
 Schedule 3.1(m) MIT Labor Matters
 Schedule 3.1(o) MIT Environmental Matters
 Schedule 3.1(p) MIT Properties
 Schedule 3.1(q) MIT Insurance
 Schedule 3.1(x) MIT Contracts
 Schedule 4.1    MIT Conduct of Business
 
Company Disclosure Schedule:
 
 Schedule 3.2(a) Company Significant Subsidiaries
 Schedule 3.2(b) Company Subsidiary Ownership
 Schedule 3.2(c) Company Conflicts
 Schedule 3.2(f) Company Certain Changes or Events
 Schedule 3.2(g) Company Undisclosed Liabilities
 Schedule 3.2(j) Company Litigation
 Schedule 3.2(k) Company Tax Information
 Schedule 3.2(l) Company Pension and Benefit Plan and Related Information
 Schedule 3.2(m) Company Labor Matters
 Schedule 3.2(o) Company Environmental Matters
 Schedule 3.2(p) Company Properties
 Schedule 3.2(q) Company Insurance
 Schedule 3.2(w) Company Contracts
 Schedule 4.1    Company Conduct of Business
</TABLE>    
 
                                       v
<PAGE>
 
                             INDEX OF DEFINED TERMS
 
<TABLE>
<CAPTION>
                                                                      Defined on
                                                                        Page #
                                                                      ----------
<S>                                                                   <C>
Definition
  Affiliate..........................................................     32
  Agreement..........................................................      1
  AMEX...............................................................      9
  Articles of Merger.................................................      1
  Articles Supplementary.............................................     40
  Average Trading Price..............................................      3
  Break-up Payment...................................................     46
  Cash Consideration.................................................      3
  CERCLA.............................................................     17
  Certificate........................................................      4
  Closing............................................................      1
  Closing Date.......................................................      2
  Code...............................................................      1
  Company............................................................      1
  Company Acquisition Proposal.......................................     45
  Company Common Stock...............................................      3
  Company Cumulative Redeemable Preferred Stock......................      2
  Company Disclosure Schedule........................................     19
  Company Employee Benefit Plans.....................................     25
  Company ERISA Affiliate............................................     25
  Company Intangible Property........................................     27
  Company Litigation.................................................     24
  Company Order......................................................     24
  Company Partnership................................................     44
  Company Pension Plans..............................................     25
  Company Permits....................................................     23
  Company Properties.................................................     28
  Company Rights.....................................................      3
  Company Rights Agreement...........................................      3
  Company SEC Documents..............................................     22
  Company Stock Plan.................................................     20
  Company Termination Fee............................................     45
  Confidentiality Agreement..........................................     35
  Conversion Number..................................................      3
  EBI................................................................     46
  Effective Time.....................................................      1
  Encumbrances.......................................................      8
  Environmental Laws.................................................     15
  EPA................................................................     17
  ERISA..............................................................     13
  Excess Securities..................................................      5
  Exchange...........................................................      5
  Exchange Act.......................................................      9
  Exchange Agent.....................................................      3
  Exchange Fund......................................................      4
  GAAP...............................................................     10
  Governmental Entity................................................      9
</TABLE>
 
                                       vi
<PAGE>
 
<TABLE>
<CAPTION>
                                                                      Defined on
                                                                        Page #
                                                                      ----------
<S>                                                                   <C>
  Hazardous Materials................................................     15
  Injunction.........................................................     42
  Investment Company Act.............................................     18
  Joint Proxy Statement..............................................      9
  Knowledge..........................................................     11
  Letter of Transmittal..............................................      4
  Material Adverse Change............................................      7
  Material Adverse Effect............................................      7
  Material Breach....................................................     44
  Merger.............................................................      1
  Merger Consideration...............................................      3
  MIT................................................................      1
  MIT Acquisition Proposal...........................................     33
  MIT Articles of Incorporation......................................      7
  MIT Bylaws.........................................................      7
  MIT Common Stock...................................................      2
  MIT Disclosure Schedule............................................      7
  MIT Employee Benefit Plans.........................................     13
  MIT ERISA Affiliate................................................     13
  MIT Indemnified Parties............................................     38
  MIT Intangible Property............................................     15
  MIT Litigation.....................................................     11
  MIT Order..........................................................     11
  MIT Partnership....................................................     43
  MIT Pension Plans..................................................     13
  MIT Permits........................................................     11
  MIT Properties.....................................................     17
  MIT Right..........................................................      3
  MIT Rights Agreement...............................................      3
  MIT SEC Documents..................................................      9
  MIT Senior Notes...................................................     41
  MIT Series B Preferred Stock.......................................      7
  MIT Series C Preferred Stock.......................................      3
  MIT Series D Preferred Stock.......................................      2
  MIT Stock Plan.....................................................      7
  MIT Superior Proposal..............................................     34
  MIT Warrants.......................................................     31
  MGCL...............................................................      1
  MIT Termination Fee................................................     45
  NYSE...............................................................      9
  Party..............................................................     30
  Payee..............................................................     46
  Property Restrictions..............................................     17
  Prudential.........................................................     41
  Prudential Voting Agreement........................................     41
  REIT...............................................................     11
  Release............................................................     16
  Remedial Action....................................................     16
  Rule 145 Affiliates................................................     36
  S-4................................................................     10
</TABLE>
 
                                      vii
<PAGE>
 
<TABLE>
<CAPTION>
                                                                      Defined on
                                                                        Page #
                                                                      ----------
<S>                                                                   <C>
  Securities Act.....................................................     10
  Significant Subsidiary.............................................     19
  stockholders.......................................................      1
  Subsidiary.........................................................      7
  Surviving Entity...................................................      1
  Takeover Statute...................................................     18
  Tax Protection Agreement...........................................     13
  Taxes..............................................................     12
  Termination Date...................................................     44
  Title 8............................................................      1
  Trading Day........................................................      3
  Voting Debt........................................................      7
  Warrant Agreement..................................................     31
</TABLE>
 
                                      viii
<PAGE>
 
                          AGREEMENT AND PLAN OF MERGER
 
  Agreement and Plan of Merger, dated as of November 16, 1998 (this
"Agreement"), between ProLogis Trust, a Maryland real estate investment trust
(the "Company"), and Meridian Industrial Trust, Inc., a Maryland corporation
("MIT").
 
  Whereas, the Company and MIT have determined to engage in a strategic
business combination;
 
  Whereas, in furtherance thereof, the Board of Directors of MIT has approved
and declared advisable this Agreement and the merger of MIT with and into the
Company, with the Company being the surviving corporation (the "Merger");
 
  Whereas, in furtherance thereof, the Board of Trustees of the Company has
approved and declared advisable this Agreement and the Merger;
 
  Whereas, the Board of Trustees of the Company has determined that it is
advisable and in the best interest of the holders of the Company's shares of
beneficial interest, and the Board of Directors of MIT has determined that it
is advisable and fair to and in the best interests of holders of MIT's stock
(all such holders are referred to herein as "stockholders"), for the Merger to
be effected upon the terms and subject to the conditions of this Agreement;
 
  Whereas, for federal income tax purposes, it is intended that the Merger
shall qualify as a reorganization within the meaning of Section 368(a) of the
Internal Revenue Code of 1986, as amended (the "Code"), and this Agreement is
intended to be and is adopted as a plan of reorganization within the meaning of
Treasury Regulation Section 1.368-1(c);
 
  Whereas, the Company and MIT desire to make certain representations,
warranties, covenants and agreements in connection with the Merger and also to
prescribe various conditions to the Merger; and
 
  Whereas, concurrently with the execution of this Agreement, MIT and Security
Capital Group Incorporated are entering into an agreement providing, among
other things, that Security Capital Group Incorporated will vote or cause to be
voted at the stockholders meeting of the Company contemplated hereby, all of
the shares of Company Common Stock (as hereinafter defined) owned by it at such
time in favor of this Agreement and the Merger and the transactions
contemplated hereby.
 
  Now, Therefore, in consideration of the foregoing and the representations,
warranties, covenants and agreements herein contained, the parties to this
Agreement agree as follows:
 
                                   ARTICLE I
 
                                   The Merger
 
  1.1 The Merger; Effective Time of the Merger. Upon the terms and subject to
the conditions of this Agreement, at the Effective Time (as hereinafter
defined), MIT shall be merged with and into the Company in accordance with the
Maryland General Corporation Law (the "MGCL") and Title 8 of the Corporations
and Associations Article of the Annotated Code of Maryland ("Title 8"), the
separate corporate existence of MIT shall cease and the Company shall continue
as the surviving entity (the Company is sometimes referred to herein as the
"Surviving Entity"). As soon as practicable at or after the closing of the
Merger (the "Closing") pursuant to Article VI, MIT and the Company shall file
articles of merger prepared and executed in accordance with the relevant
provisions of Title 8 and the MGCL (the "Articles of Merger") with the State
Department of Assessments and Taxation of Maryland. The Merger shall become
effective upon the filing of the Articles of Merger with, and acceptance for
record of the Articles of Merger by, the State Department of Assessments and
Taxation of Maryland, or at such later time (but not to exceed 30 days after
the Articles of Merger are accepted for record by the State Department of
Assessments and Taxation of Maryland) specified in the Articles of Merger (the
"Effective Time").
 
                                      A-1
<PAGE>
 
  1.2 Closing. The Closing shall take place at 9:30 a.m., Central time, on a
date to be specified by the parties, which shall be no later than the fifth
business day after satisfaction (or waiver in accordance with this Agreement)
of the latest to occur of the conditions set forth in Article VI (the "Closing
Date"), at the offices of Mayer, Brown & Platt, 190 South LaSalle Street,
Chicago, Illinois 60603, unless another date or place is agreed to in writing
by the parties.
 
  1.3 Effect of the Merger. The Merger shall have the effects set forth in this
Agreement and the applicable provisions of Title 8 and the MGCL. Without
limiting the generality of the foregoing and subject thereto, at the Effective
Time all the property, rights, privileges, immunities, powers and franchises of
MIT and the Company shall vest in the Surviving Entity, and all debts,
liabilities, obligations and duties of MIT and the Company shall become the
debts, liabilities, obligations and duties of the Surviving Entity.
 
  1.4 Declaration of Trust and Bylaws
 
  (a) At the Effective time, the Declaration of Trust and Bylaws of the Company
in effect immediately prior to the Effective Time shall be the Declaration of
Trust and Bylaws of the Surviving Entity, until thereafter amended in
accordance with their respective terms and applicable law.
 
  (b) Immediately prior to the Effective Time, the Board of Trustees of the
Company shall authorize the designation of a series of preferred shares of
beneficial interest, $0.01 par value (the "Company Cumulative Redeemable
Preferred Stock"), of the Company, so as to permit the Company to issue shares
of Company Cumulative Redeemable Preferred Stock pursuant to Section 2.1
hereof, and the Company shall file with the State Department of Assessments and
Taxation of Maryland immediately prior to the Effective Time Articles
Supplementary with respect to Company Cumulative Redeemable Preferred Stock
pursuant to Title 8 in substantially the form attached as Exhibit A hereto.
Dividends on the Company Cumulative Redeemable Preferred Stock shall be deemed
to accrue from and after the end of the last Dividend Period (as defined in the
Articles Supplementary for the Series D Cumulative Redeemable Preferred Stock,
par value $0.001 per share ("MIT Series D Preferred Stock"), of MIT) for which
a record date has been set prior to the Effective Time, unless a partial
dividend is declared and paid at the Effective Time on the MIT Series D
Preferred Stock pursuant to Section 4.1(b) hereof, in which case, dividends on
the Company Cumulative Redeemable Preferred Stock shall be deemed to accrue
from and after the Effective Time. The blanks in Sections 2(k) and 3(a) of
Exhibit A hereto shall be completed to reflect the calendar day on which
dividends on the Company Cumulative Redeemable Preferred Stock begin to accrue
as described in the immediately preceding sentence.
 
  1.5 Trustees and Officers. At the Effective Time, the Board of Trustees of
Company shall increase the number of members comprising its Board of Trustees
by up to three trustees, and shall appoint two of the individuals identified on
Exhibit B hereto (such individuals to be selected by the Company's Board of
Trustees in its discretion) as the persons to fill two of the vacancies created
thereby, and such trustees shall serve until their successors have been duly
elected or appointed and qualified or until their death, resignation or removal
in accordance with the Declaration of Trust and Bylaws of the Surviving Entity.
From and after the Effective Time, the officers of the Company shall be the
officers of the Surviving Entity, with such additions thereto as the Board of
Trustees of the Surviving Entity shall deem appropriate from time to time, each
to serve until the earlier of their death, resignation or removal from office.
 
                                   ARTICLE II
 
                   Effect of the Merger on the Capital Stock
                of the Company and MIT; Exchange of Certificates
 
  2.1 Effect of the Merger on Capital Stock. At the Effective Time, by virtue
of the Merger and without any action on the part of the holder of any shares of
capital stock of the Company, or the common stock, par value $0.001 per share
("MIT Common Stock"), of MIT or MIT Series D Preferred Stock:
 
    (a) Shares of Beneficial Interest of the Company. Each share of
  beneficial interest of the Company issued and outstanding immediately prior
  to the Effective Time shall not be converted or otherwise affected by the
  Merger and shall remain outstanding after the Merger.
 
 
                                      A-2
<PAGE>
 
     
    (b) Capital Stock of MIT. Subject to the provisions of Section 2.2(e)
  hereof, (i) each share of MIT Common Stock and, to the extent then
  outstanding, the associated right (each a "MIT Right") to purchase Series C
  Junior Participating Preferred Stock, par value $0.001 per share ("MIT
  Series C Preferred Stock"), of MIT in accordance with the Rights Agreement
  dated as of March 12, 1998 (the "MIT Rights Agreement"), between MIT and
  First Chicago Trust Company of New York (references in this Agreement to
  shares of MIT Common Stock shall also be deemed to refer to the MIT Rights
  associated therewith, as appropriate), issued and outstanding immediately
  prior to the Effective Time (other than any shares of MIT Common Stock
  which are held by the Company or a wholly-owned Subsidiary of the Company
  (as hereinafter defined) of the Company, which shares shall be canceled and
  no consideration shall be received in exchange therefor) shall be converted
  into the right to receive (A) 1.10 (the "Conversion Number") common shares
  of beneficial interest of the Company, par value $.01 per share ("Company
  Common Stock"), and (B) if the Average Trading Price (as hereinafter
  defined) is less than $22.725, an amount in cash (not to exceed $2.00 per
  share) equal to the amount by which (x) $25.00 exceeds (y) the product of
  the Average Trading Price multiplied by the Conversion Number (the "Cash
  Consideration") and the corresponding number of rights ("Company Rights")
  to purchase preferred shares of beneficial interest of the Company pursuant
  to the Rights Agreement dated as of December 31, 1993, as amended, between
  the Company and State Street Bank & Trust Company, as Rights Agent (the
  "Company Rights Agreement") (references in this Agreement to shares of
  Company Common Stock shall also be deemed to refer to the Company Rights
  associated therewith, as appropriate), and (ii) each share of MIT Series D
  Preferred Stock issued and outstanding immediately prior to the Effective
  Time shall be converted into one share of Company Cumulative Redeemable
  Preferred Stock (the consideration described in clauses (i) and (ii) is
  collectively referred to herein as the "Merger Consideration"). "Average
  Trading Price" means the average of the daily high and low per share
  transaction prices for Company Common Stock as reported in The Wall Street
  Journal's New York Stock Exchange Composite Transactions Reports for the 15
  Trading Days randomly selected by Arthur Andersen LLP from the 30
  consecutive Trading Days ending on (and including) the fifth Trading Day
  prior to the scheduled Closing Date determined in accordance with the
  provisions of Section 1.2; and "Trading Day" refers to a day on which the
  Exchange (as hereinafter defined) is open for trading. All such shares of
  MIT Common Stock and MIT Series D Preferred Stock, when so converted, shall
  no longer be outstanding and shall automatically be canceled and retired
  and shall cease to exist, and each holder of a certificate representing any
  such shares and each holder of uncertificated shares shall cease to have
  any rights with respect thereto, except the right to receive the applicable
  Merger Consideration and any unpaid dividends and distributions that such
  holder has the right to receive pursuant to Section 2.2(c), to be issued or
  paid in consideration therefor upon the surrender of such certificates or
  exchange of such uncertificated shares in accordance with Section 2.2,
  without interest.     
 
    (c) Treatment of MIT Stock Options. Any MIT Stock Options (as defined in
  Section 5.10) outstanding at the Effective Time shall be assumed by the
  Surviving Entity as provided in Section 5.10.
 
    (d) Treatment of MIT Warrants.. Each MIT Warrant (as defined in Section
  5.11) outstanding at the Effective Time shall be assumed by the Surviving
  Entity as provided in Section 5.11.
 
    (e) Impact of Stock Splits, etc.. In the event of any change in the MIT
  Common Stock and/or Company Common Stock between the date of this Agreement
  and the Effective Time in accordance with the terms of this Agreement by
  reason of any stock split, stock dividend, subdivision, reclassification,
  recapitalization, combination, exchange of shares or the like, the number
  and class of shares of Company Common Stock to be issued and delivered in
  the Merger in exchange for each share of MIT Common Stock as provided in
  this Agreement shall be appropriately adjusted so as to maintain the
  relative proportionate interests of the holders of MIT Common Stock and
  Company Common Stock.
 
  2.2 Exchange of Certificates
 
  (a) Exchange Agent. As of the Effective Time, the Company shall deposit with
a bank or trust company designated by the Company and reasonably acceptable to
MIT (the "Exchange Agent"), for the benefit of the holders of shares of MIT
Common Stock and MIT Series D Preferred Stock, as applicable, for exchange in
 
                                      A-3
<PAGE>
 
   
accordance with this Article II, through the Exchange Agent, cash in an amount
sufficient to pay the aggregate Cash Consideration, if any, and certificates
representing the shares of Company Common Stock and Company Cumulative
Redeemable Preferred Stock (such cash and such shares of Company Common Stock
and Company Cumulative Redeemable Preferred Stock, together with any dividends
or distributions with respect to all shares of Company Common Stock and Company
Cumulative Redeemable Preferred Stock issuable pursuant to Section 2.1, being
hereinafter referred to as the "Exchange Fund"), issuable pursuant to Section
2.1 in exchange for outstanding shares of MIT Common Stock and MIT Series D
Preferred Stock. The Exchange Agent shall, pursuant to irrevocable
instructions, deliver the Cash Consideration, if any, the Company Common Stock
and Company Cumulative Redeemable Preferred Stock contemplated to be paid and
issued pursuant to Section 2.1 out of the Exchange Fund. The Exchange Fund
shall not be used for any other purpose.     
 
  (b) Exchange Procedures.
     
    (i) As soon as reasonably practicable after the Effective Time, the
  Exchange Agent shall mail to each holder of record of a certificate or
  certificates which, immediately prior to the Effective Time, represented
  outstanding shares of MIT Common Stock or MIT Series D Preferred Stock
  (each, a "Certificate"), which holder's shares of MIT Common Stock or MIT
  Series D Preferred Stock were converted into the right to receive the
  amount of Cash Consideration, if any, and the number of shares of Company
  Common Stock or Company Cumulative Redeemable Preferred Stock, as the case
  may be, set forth in Section 2.1: (i) a letter of transmittal ("Letter of
  Transmittal") which shall specify that delivery shall be effected and risk
  of loss and title to the Certificates shall pass only upon delivery of the
  Certificates to the Exchange Agent, and shall be in such form and have such
  other provisions as the Surviving Entity may reasonably specify; and (ii)
  instructions for use in effecting the surrender of the Certificates in
  exchange for certificates representing shares of Company Common Stock or
  Company Cumulative Redeemable Preferred Stock, as the case may be. Upon
  surrender of a Certificate for cancellation to the Exchange Agent, together
  with the Letter of Transmittal, duly executed, and any other documents
  reasonably required by the Surviving Entity or the Exchange Agent, (A) the
  holder of a Certificate formerly representing shares of (1) MIT Common
  Stock shall be entitled to receive in exchange therefor the amount of Cash
  Consideration, if any, and a certificate representing that number of shares
  of Company Common Stock, or (2) MIT Series D Preferred Stock shall be
  entitled to receive a certificate representing that number of shares of
  Company Cumulative Redeemable Preferred Stock, which such holder has the
  right to receive pursuant to the provisions of this Article II, and any
  unpaid dividends and distributions that such holder has the right to
  receive pursuant to Section 2.2(c); and (B) the Certificate so surrendered
  shall forthwith be canceled. In the event of a transfer of ownership of MIT
  Common Stock or MIT Series D Preferred Stock, which is not registered in
  the transfer records of MIT, the appropriate amount of Cash Consideration,
  if any, and a certificate representing the appropriate number of shares of
  Company Common Stock or Company Cumulative Redeemable Preferred Stock, as
  the case may be, may be paid and issued to a transferee if the Certificate
  representing such MIT Common Stock or MIT Series D Preferred Stock is
  presented to the Exchange Agent properly endorsed or accompanied by
  appropriate stock powers and otherwise in proper form for transfer and
  accompanied by all documents required to evidence and effect such transfer
  and by evidence that any applicable stock transfer taxes have been paid.
  Until surrendered as contemplated by this Section 2.2, each Certificate
  shall be deemed at any time after the Effective Time to represent only the
  right to receive upon such surrender the appropriate amount of Cash
  Consideration, in the case of a certificate representing MIT Common Stock,
  and the certificate representing shares of Company Common Stock or Company
  Cumulative Redeemable Preferred Stock, as the case may be, and any unpaid
  dividends and distributions that such holder has the right to receive
  pursuant to Section 2.2(c). The Exchange Agent shall not be entitled to
  vote or exercise any rights of ownership with respect to Company Common
  Stock or Company Cumulative Redeemable Preferred Stock, as the case may be,
  held by it from time to time hereunder, except that it shall receive and
  hold all dividends or other distributions paid or distributed with respect
  thereto for the account of persons entitled thereto.     
     
    (ii) As soon as reasonably practicable after the Effective Time, the
  Exchange Agent shall mail to each holder of record of uncertificated shares
  of MIT Common Stock or MIT Series D Preferred Stock, which     
 
                                      A- 4
<PAGE>
 
     
  holder's shares of MIT Common Stock or MIT Series D Preferred Stock were
  converted into the right to receive the amount of Cash Consideration, if
  any, and the number of shares of Company Common Stock or Company Cumulative
  Redeemable Preferred Stock, as the case may be, set forth in Section 2.1,
  if requested by the Company: (i) a letter of transmittal which shall
  specify that delivery of any initial transaction statement shall be
  effected and risk of loss and title to the shares represented thereby shall
  pass only upon delivery of the letter of transmittal to the Exchange Agent,
  and shall be in such form and have such other provisions as the Surviving
  Entity may reasonably specify; and (ii) instructions for completing such
  letter of transmittal to effect the exchange of such uncertificated shares
  of MIT Common Stock or MIT Series D Preferred Stock into uncertificated
  shares of Company Common Stock or Company Cumulative Redeemable Preferred
  Stock, as the case may be. Upon valid delivery of a letter of transmittal
  to the Exchange Agent, together with any other documents reasonably
  required by the Surviving Entity or the Exchange Agent, or if no letter of
  transmittal is requested by the Company, at the Effective Time, (A) the
  holder of uncertificated shares of (1) MIT Common Stock shall be entitled
  to receive in exchange therefor the amount of Cash Consideration, if any,
  and an initial transaction statement representing that number of shares of
  Company Common Stock, or (2) MIT Series D Preferred Stock shall be entitled
  to receive an initial transaction statement representing that number of
  shares of Company Cumulative Redeemable Preferred Stock, which such holder
  has the right to receive pursuant to the provisions of this Article II, and
  any unpaid dividends and distributions that such holder has the right to
  receive pursuant to Section 2.2(c); and (B) the transaction statement on
  the books and records of MIT shall forthwith be canceled. Until exchanged
  as contemplated by this Section 2.2, each uncertificated share of MIT
  Common Stock and MIT Series D Preferred Stock shall be deemed at any time
  after the Effective Time to represent only the right to receive upon such
  exchange the appropriate amount of Cash Consideration, in the case of
  uncertificated shares of MIT Common Stock, and an initial transaction
  statement representing uncertificated shares of Company Common Stock or
  Company Cumulative Redeemable Preferred Stock, as the case may be, and any
  unpaid dividends and distributions that such holder has the right to
  receive pursuant to Section 2.2(c). The Exchange Agent shall not be
  entitled to vote or exercise any rights of ownership with respect to
  Company Common Stock or Company Cumulative Redeemable Preferred Stock, as
  the case may be, held by it from time to time hereunder, except that it
  shall receive and hold all dividends or other distributions paid or
  distributed with respect thereto for the account of persons entitled
  thereto.     
   
  (c) Distributions with Respect to Unexchanged Shares. No dividends or other
distributions with respect to Company Common Stock or Company Cumulative
Redeemable Preferred Stock, as the case may be, declared or made after the
Effective Time with a record date after the Effective Time shall be paid to the
holder of any unsurrendered Certificate or any unexchanged uncertificated share
with respect to the right to receive shares of Company Common Stock or Company
Cumulative Redeemable Preferred Stock, as the case may be, represented thereby
until the holder of such Certificate or uncertificated share shall surrender
such Certificate or rights in respect of such uncertificated share. Subject to
the effect of applicable laws, following surrender of any such Certificate or
exchange of any such uncertificated share, there shall be paid to the holder
thereof, without interest: (i) at the time of such surrender, the amount of
dividends or other distributions with a record date after the Effective Time
theretofore paid with respect to such shares of Company Common Stock or Company
Cumulative Redeemable Preferred Stock, as the case may be; and (ii) at the
appropriate payment date, the amount of dividends or other distributions with a
record date after the Effective Time but prior to such surrender and a payment
date subsequent to such surrender payable with respect to such shares of
Company Common Stock or Company Cumulative Redeemable Preferred Stock, as the
case may be.     
   
  (d) No Further Ownership Rights. Any Cash Consideration and all shares of
Company Common Stock or Company Cumulative Redeemable Preferred Stock, as the
case may be, issued upon the surrender for exchange of shares of MIT Common
Stock and MIT Series D Preferred Stock in accordance with the terms hereof
shall be deemed to have been issued in full satisfaction of all rights
pertaining to such shares of MIT Common Stock and MIT Series D Preferred Stock,
subject, however, to the Surviving Entity's obligation to pay any dividends or
make any other distributions with a record date prior to the Effective Time
that may have been declared or     
 
                                      A-5
<PAGE>
 
   
made by MIT on such shares of MIT Common Stock and MIT Series D Preferred Stock
in accordance with the terms of this Agreement and which remain unpaid at the
Effective Time, and after the Effective Time there shall be no further
registration of transfers on the stock transfer books of the Surviving Entity
of the shares of MIT Common Stock or MIT Series D Preferred Stock that were
outstanding immediately prior to the Effective Time. If, after the Effective
Time, Certificates or rights in respect of uncertificated shares of MIT Common
Stock or MIT Series D Preferred Stock are presented to the Surviving Entity for
any reason, they shall be canceled and exchanged as provided in this Article
II.     
   
  (e) Intentionally Omitted.     
          
  (f) Termination of Exchange Fund. Any portion of the Exchange Fund made
available to the Exchange Agent that remain undistributed to the former
stockholders of MIT on the first anniversary of the Effective Time shall be
delivered to the Surviving Entity, upon demand, and any stockholders of MIT who
have not theretofore received any applicable Cash Consideration, Company Common
Stock or Company Cumulative Redeemable Preferred Stock, as the case may be, and
any additional cash and other dividends or distributions to which they are
entitled under this Article II shall thereafter look only to the Surviving
Entity for payment of their claims with respect thereto and only as general
creditors thereof.     
   
  (g) No Liability. Neither the Surviving Entity nor MIT shall be liable to any
holder of shares of MIT Common Stock or MIT Series D Preferred Stock, as the
case may be, for any part of the Merger Consideration or for dividends or
distributions with respect thereto delivered to a public official pursuant to
any applicable abandoned property, escheat or similar law. Any amounts
remaining unclaimed by holders of any such shares five years after the
Effective Time or at such earlier date as is immediately prior to the time at
which such amounts would otherwise escheat to or become property of any
governmental entity, shall, to the extent permitted by applicable law, become
the property of the Surviving Entity, free and clear of any claims or interest
of any such holders or their successors, assigns or personal representatives
previously entitled thereto.     
   
  (h) Lost, Stolen, or Destroyed Certificates. If any Certificate shall have
been lost, stolen or destroyed, upon the making of an affidavit of that fact by
the person claiming such Certificate to be lost, stolen or destroyed and, if
required by the Surviving Entity, the posting by such person of a bond in such
reasonable amount as the Surviving Entity may direct as indemnity against any
claim that may be made against it with respect to such Certificate, the
Exchange Agent shall issue in exchange for such lost, stolen or destroyed
Certificate the certificate representing the appropriate amount of Cash
Consideration payable in respect of shares of MIT Common Stock and that number
of shares of Company Common Stock or Company Cumulative Redeemable Preferred
Stock, as the case may be, which such holder has the right to receive pursuant
to the provisions of this Article II, and any unpaid dividends and
distributions that such holder has the right to receive pursuant to Section
2.2(c).     
   
  (i) Withholding of Tax. The Surviving Entity shall be entitled to deduct and
withhold from the Merger Consideration, any dividends or distributions
otherwise payable pursuant to this Agreement to any holder of a Certificate or
holder of uncertificated shares of MIT Common Stock or MIT Series D Preferred
Stock such amount as the Surviving Entity (or any affiliate thereof) or the
Exchange Agent is required to deduct and withhold with respect to the making of
such payment under federal, state, local or foreign tax law. To the extent that
amounts are so withheld by the Surviving Entity, such withheld amounts shall be
treated for all purposes of this Agreement as having been paid to the former
holder of a Certificate or holder of uncertificated shares of MIT Common Stock
or MIT Series D Preferred Stock or other stockholders of MIT in respect of
which such deduction and withholding was made by the Surviving Entity.     
 
  2.3 Dissenting Shares. The holders of shares of MIT Common Stock or MIT
Series D Preferred Stock shall not be entitled to appraisal rights.
 
                                      A-6
<PAGE>
 
                                  ARTICLE III
 
                         Representations and Warranties
 
  3.1 Representations and Warranties of MIT. MIT represents and warrants to the
Company as follows (in each case as qualified by matters reflected on the
disclosure schedule dated as of the date of this Agreement and delivered by MIT
to the Company on or prior to the date of this Agreement (the "MIT Disclosure
Schedule") and made a part hereof by reference, each such matter qualifying
each representation and warranty, as applicable, notwithstanding any specific
Section or Schedule reference or lack thereof):
 
  (a) Organization, Standing and Power. MIT and each of its Subsidiaries (as
defined below) is a corporation or partnership duly organized, validly existing
and in good standing under the laws of its state of incorporation or
organization, has all requisite power and authority to own, lease and operate
its properties and to carry on its business as now being conducted, and is duly
qualified and in good standing to do business in each jurisdiction in which the
business it is conducting, or the operation, ownership or leasing of its
properties, makes such qualification necessary, other than in such
jurisdictions where the failure so to qualify would not have a Material Adverse
Effect (as defined below) on MIT. MIT has heretofore delivered to the Company
complete and correct copies of its Third Amended and Restated Articles of
Incorporation (the "MIT Articles of Incorporation") and Third Amended and
Restated Bylaws (the "MIT Bylaws"). All Subsidiaries of MIT and their
respective jurisdictions of incorporation or organization, as well as the
respective ownership of MIT in such Subsidiaries (to the extent that all of the
equity interests in any such Subsidiary are not owned, directly or indirectly,
by MIT), are identified on Schedule 3.1(a) of the MIT Disclosure Schedule.
Schedule 3.1(a) of the MIT Disclosure Schedule sets forth a list of each
jurisdiction in which MIT or a MIT Subsidiary is qualified or licensed to do
business and each assumed name under which any of them conducts business in any
jurisdiction. As used in this Agreement: (i) a "Material Adverse Effect" or
"Material Adverse Change" shall mean, in respect of MIT or the Company, as
applicable, any effect or change that is or would be materially adverse to the
business, operations, assets, condition (financial or otherwise) or results of
operations of such party and its Subsidiaries taken as a whole, and (ii) the
word "Subsidiary" means, with respect to any party, any corporation or other
organization, whether incorporated or unincorporated, of which: (i) such party
or any other Subsidiary of such party is a general partner; (ii) at least a
majority of the securities or other interests having by their terms ordinary
voting power to elect a majority of the Board of Directors or others performing
similar functions with respect to such corporation or other organization is,
directly or indirectly, owned or controlled by such party or by any one or more
of its Subsidiaries, or by such party and any one or more of its Subsidiaries;
or (iii) such party and/or any other Subsidiary of such party has a direct or
indirect investment of $25 million or more in capital or indebtedness.
 
  (b) Capital Structure. As of the date hereof, the authorized capital stock of
MIT consists of (i) 175,000,000 shares of MIT Common Stock and (ii) 25,000,000
shares of preferred stock, par value $0.001 per share, of which (x) 2,272,727
shares have been designated as MIT Series B Preferred Stock, par value $0.001
per share ("MIT Series B Preferred Stock"), (y) 150,000 shares have been
designated as MIT Series C Preferred Stock and (z) 2,300,000 shares have been
designated as MIT Series D Preferred Stock. At the close of business on October
31, 1998: (A) 31,689,273 shares of MIT Common Stock (including one MIT Right
for each outstanding share of MIT Common Stock) were issued and outstanding;
(B) 1,623,376 shares of MIT Series B Preferred Stock were issued and
outstanding; (C) no shares of MIT Series C Preferred Stock were issued and
outstanding; (D) 2,000,000 shares of MIT Series D Preferred Stock were issued
and outstanding; (E) 1,894,351 shares of MIT Common Stock were reserved for
issuance pursuant to MIT's Second Amended and Restated Employee and Director
Incentive Stock Plan (the "MIT Stock Plan"), of which 282,000 shares of MIT
Common Stock were subject to issuance upon vesting of restricted stock grants
or exercise of options or awards granted to officers, directors or employees of
MIT and its Subsidiaries; (F) 1,623,376 shares of MIT Common Stock were
reserved for issuance upon conversion of the MIT Series B Preferred Stock; (G)
601,627 shares of MIT Common Stock were subject to issuance, and were also
reserved for issuance, upon exercise of the MIT Warrants; and (H) no Voting
Debt (as defined below) was issued and outstanding. The term "Voting Debt"
means bonds, debentures, notes or other indebtedness having the right to vote
(or convertible into
 
                                      A-7
<PAGE>
 
securities having the right to vote) on any matters on which stockholders of
MIT or the Company, as applicable, may vote. All outstanding shares of MIT
Common Stock, MIT Series B Preferred Stock and MIT Series D Preferred Stock are
validly issued, fully paid and nonassessable and are not subject to preemptive
rights. Except as set forth on Schedule 3.1(b) of the MIT Disclosure Schedule,
all outstanding shares of capital stock of the Subsidiaries of MIT owned by
MIT, or a direct or indirect wholly owned Subsidiary of MIT, are free and clear
of all liens, pledges, charges, encumbrances, claims, mortgages, deeds of
trust, security interests, restrictions, rights of first refusal, defects in
title, or other burdens, options or encumbrances of any kind ("Encumbrances").
Set forth in Schedule 3.1(b) of the MIT Disclosure Schedule is a true and
complete list of the following: (i) each outstanding qualified or non-qualified
option to purchase MIT Common Stock granted under the MIT Stock Plan or
otherwise; (ii) each grant of MIT Common Stock to employees which is subject to
any risk of forfeiture and a total thereof; (iii) any obligation of MIT to
issue MIT Common Stock as a result of the transactions contemplated hereby and
a total thereof; and (iv) each loan made by MIT with respect to the purchase of
MIT Common Stock, and indicating those loans which will be forgiven, in whole
or in part, as a result of the transactions contemplated by this Agreement.
Except as set forth in this Section 3.1(b) or on Schedule 3.1(b) of the MIT
Disclosure Schedule, and except for changes since October 31, 1998 resulting
from the exercise of stock options, stock grants or other awards granted prior
to October 31, 1998 pursuant to the MIT Stock Plan, or the exercise of MIT
Warrants, or as contemplated by this Agreement, there are issued and
outstanding or reserved for issuance: (1) no shares of capital stock, Voting
Debt or other voting securities of MIT; (2) no securities of MIT or any
Subsidiary of MIT or securities or assets of any other entity convertible into
or exchangeable for shares of capital stock, Voting Debt or other voting
securities of MIT or any Subsidiary of MIT, and (3) no options, warrants,
calls, rights (including preemptive rights), commitments or agreements to which
MIT or any Subsidiary of MIT is a party or by which it is bound in any case
obligating MIT or any Subsidiary of MIT to issue, deliver, sell, purchase,
redeem or acquire, or cause to be issued, delivered, sold, purchased, redeemed
or acquired, additional shares of capital stock or any Voting Debt or other
voting securities of MIT or of any Subsidiary of MIT, or obligating MIT or any
Subsidiary of MIT to grant, extend or enter into any such option, warrant,
call, right, commitment or agreement. There are not as of the date hereof and
there will not be at the Effective Time any stockholder agreements, voting
trusts or other agreements or understandings to which MIT is a party or by
which it is bound relating to the voting of any shares of the capital stock of
MIT that will limit in any way the solicitation of proxies by or on behalf of
MIT from, or the casting of votes by, the stockholders of MIT with respect to
the Merger. There are no restrictions on MIT to vote the stock of any of its
Subsidiaries. Except as set forth on Schedule 3.1(b) to the MIT Disclosure
Schedule, all dividends or distributions on securities of MIT that have been
declared or authorized prior to the date of this Agreement have been paid in
full.
 
  (c) Authority; No Violations; Consents and Approvals.
 
    (i) The Board of Directors of MIT has approved and declared advisable the
  Merger and this Agreement, and declared the Merger and this Agreement to be
  fair to and in the best interests of the stockholders of MIT. The directors
  of MIT have advised MIT and the Company that they intend to vote or cause
  to be voted all of the shares of MIT Common Stock beneficially owned by
  them and their affiliates in favor of approval of the Merger and this
  Agreement. MIT has all requisite corporate power and authority to enter
  into this Agreement and, subject, with respect to consummation of the
  Merger, to approval of this Agreement and the Merger by the stockholders of
  MIT in accordance with the MGCL and the MIT Articles of Incorporation and
  MIT Bylaws, to consummate the transactions contemplated hereby. The
  execution and delivery of this Agreement and the consummation of the
  transactions contemplated hereby have been duly authorized by all necessary
  corporate action on the part of MIT, subject, with respect to consummation
  of the Merger, to approval of this Agreement and the Merger by the
  stockholders of MIT in accordance with the MGCL and the MIT Articles of
  Incorporation and MIT Bylaws. This Agreement has been duly executed and
  delivered by MIT and, subject, with respect to consummation of the Merger,
  to approval of this Agreement and the Merger by the stockholders of MIT in
  accordance with the MGCL and the MIT Articles of Incorporation and MIT
  Bylaws, and assuming this Agreement constitutes the valid and binding
  obligation of the Company, constitutes a valid and binding obligation of
 
                                      A-8
<PAGE>
 
  MIT enforceable in accordance with its terms, subject, as to
  enforceability, to bankruptcy, insolvency, reorganization, moratorium and
  other laws of general applicability relating to or affecting creditors'
  rights and to general principles of equity (regardless of whether such
  enforceability is considered in a proceeding in equity or at law).
 
    (ii) Except as set forth on Schedule 3.1(c) of the MIT Disclosure
  Schedule, the execution and delivery of this Agreement does not, and the
  consummation of the transactions contemplated hereby and compliance with
  the provisions hereof will not, conflict with, or result in any violation
  of, or default (with or without notice or lapse of time, or both) under, or
  give rise to a right of termination, cancellation or acceleration of any
  material obligation or to the loss of a material benefit under, or give
  rise to a right of purchase under, result in the creation of any
  Encumbrance upon any of the properties or assets of MIT or any of its
  Subsidiaries under, require the consent or approval of any third party or
  otherwise result in a material detriment to MIT or any of its Subsidiaries
  under, any provision of (A) the MIT Articles of Incorporation or MIT Bylaws
  or any provision of the comparable charter or organizational documents of
  any of MIT's Subsidiaries, (B) any loan or credit agreement, note, bond,
  mortgage, indenture, lease or other agreement, instrument, permit,
  concession, franchise or license applicable to MIT or any of its
  Subsidiaries or their respective properties or assets or any guarantee by
  MIT or any of its Subsidiaries of any of the foregoing, (C) any joint
  venture or other ownership arrangement or (D) assuming the consents,
  approvals, authorizations or permits and filings or notifications referred
  to in Section 3.1(c)(iii) are duly and timely obtained or made and the
  approval of the Merger and this Agreement by the stockholders of MIT has
  been obtained, any judgment, order, decree, statute, law, ordinance, rule
  or regulation applicable to MIT or any of its Subsidiaries or any of their
  respective properties or assets, other than, in the case of clauses (B),
  (C) and (D), any such conflicts, violations, defaults, rights, Encumbrances
  or detriments that, individually or in the aggregate, would not have a
  Material Adverse Effect on MIT, materially impair the ability of MIT to
  perform its obligations hereunder or prevent the consummation of any of the
  transactions contemplated hereby.
 
    (iii) Except as set forth on Schedule 3.1(c) of the MIT Disclosure
  Schedule, no consent, approval, order or authorization of, or registration,
  declaration or filing with, or permit from any court, governmental,
  regulatory or administrative agency or commission or other governmental
  authority or instrumentality, domestic or foreign (a "Governmental
  Entity"), is required by or with respect to MIT or any of its Subsidiaries
  in connection with the execution and delivery of this Agreement by MIT or
  the consummation by MIT of the transactions contemplated hereby, as to
  which the failure to obtain or make would have a Material Adverse Effect on
  MIT, except for: (A) the filing with the SEC of (1) a proxy statement in
  preliminary and definitive form relating to the meetings of the
  stockholders of MIT and of the Company to be held in connection with the
  Merger (the "Joint Proxy Statement") and (2) such reports under Section
  13(a) of the Securities Exchange Act of 1934, as amended (the "Exchange
  Act"), and such other compliance with the Exchange Act and the rules and
  regulations thereunder, as may be required in connection with this
  Agreement and the transactions contemplated hereby; (B) the filing of the
  Articles of Merger with, and the acceptance for record of the Articles of
  Merger by, the State Department of Assessments and Taxation of Maryland;
  (C) filings with the New York Stock Exchange (the "NYSE") and the American
  Stock Exchange (the "AMEX"); (D) such filings and approvals as may be
  required by any applicable state securities, "blue sky" or takeover laws,
  or environmental laws; (E) such filings and approvals as may be required by
  any foreign premerger notification, securities, corporate or other law,
  rule or regulation; and (F) any such consent, approval, order,
  authorization, registration, declaration, filing, or permit that the
  failure to obtain or make would not, individually or in the aggregate, have
  a Material Adverse Effect on MIT, materially impair the ability of MIT to
  perform its obligations hereunder or prevent the consummation of any of the
  transactions contemplated hereby.
 
  (d) SEC Documents. MIT has made available to the Company a true and complete
copy of each report, schedule, registration statement and definitive proxy
statement filed by MIT with the SEC since January 1, 1996 and prior to or on
the date of this Agreement (the "MIT SEC Documents"), which are all the
documents (other than preliminary material) that MIT was required to file with
the SEC between January 1, 1996 and the
 
                                      A-9
<PAGE>
 
date of this Agreement. As of their respective dates, the MIT SEC Documents
complied in all material respects with the requirements of the Securities Act
of 1933, as amended (the "Securities Act"), or the Exchange Act, as the case
may be, and the rules and regulations of the SEC thereunder applicable to such
MIT SEC Documents, and none of the MIT SEC Documents contained any untrue
statement of a material fact or omitted to state a material fact required to be
stated therein or necessary to make the statements therein, in light of the
circumstances under which they were made, not misleading. MIT has no
outstanding and unresolved comments from the SEC with respect to any of the MIT
SEC Documents. The financial statements of MIT included in the MIT SEC
Documents complied as to form in all material respects with the published rules
and regulations of the SEC with respect thereto, were prepared in accordance
with generally accepted accounting principles ("GAAP") applied on a consistent
basis during the periods involved (except as may be indicated in the notes
thereto or, in the case of the unaudited statements, as permitted by Rule 10-01
of Regulation S-X of the SEC) and fairly presented in accordance with
applicable requirements of GAAP (subject, in the case of the unaudited
statements, to normal, recurring adjustments, none of which are material) the
consolidated financial position of MIT and its consolidated Subsidiaries as of
their respective dates and the consolidated results of operations and the
consolidated cash flows of MIT and its consolidated Subsidiaries for the
periods presented therein. Except as disclosed in the MIT SEC Documents, there
are no agreements, arrangements or understandings between MIT and any party who
is at the date of this Agreement or was at any time prior to the date hereof
but after January 1, 1996 an Affiliate (as defined in Section 4.1(k)) of MIT
that are required to be disclosed in the MIT SEC Documents. The books of
account and other financial records of the Company are true, complete and
correct in all material respects and are accurately reflected in all material
respects in the financial statements included in the MIT SEC Documents.
 
  (e) Information Supplied. None of the information supplied or to be supplied
by MIT for inclusion or incorporation by reference in the Registration
Statement on Form S-4 to be filed with the SEC by the Company in connection
with the issuance of shares of Company Common Stock and Company Cumulative
Redeemable Preferred Stock in the Merger (the "S-4") will, at the time the S-4
becomes effective under the Securities Act or at the Effective Time, contain
any untrue statement of a material fact or omit to state any material fact
required to be stated therein or necessary to make the statements therein, in
light of the circumstances under which they are made, not misleading, and none
of the information supplied or to be supplied by MIT and included or
incorporated by reference in the Joint Proxy Statement will, at the date mailed
to stockholders of MIT and at the date mailed to stockholders of the Company or
at the time of the meeting of such stockholders to be held in connection with
the Merger or at the Effective Time, contain any untrue statement of a material
fact or omit to state any material fact required to be stated therein or
necessary in order to make the statements therein, in light of the
circumstances under which they are made, not misleading. If at any time prior
to the Effective Time any event with respect to MIT or any of its Subsidiaries,
or with respect to other information supplied by MIT for inclusion in the Joint
Proxy Statement or S-4, shall occur which is required to be described in an
amendment of, or a supplement to, the S-4 or the Joint Proxy Statement, such
event shall be so described, and MIT shall reasonably cooperate with the
Company to cause such amendment or supplement to be promptly filed with the SEC
and, as required by law, disseminated to the stockholders of MIT. The Joint
Proxy Statement, insofar as it relates to MIT or its Subsidiaries or other
information supplied by MIT for inclusion or incorporation by reference
therein, will comply as to form in all material respects with the provisions of
the Exchange Act and the rules and regulations thereunder.
 
  (f) Absence of Certain Changes or Events. Except as set forth on Schedule
3.1(f) of the MIT Disclosure Schedule or as disclosed in or reflected in the
financial statements included in the MIT SEC Documents, and except as
contemplated by this Agreement, since the date of the most recent audited
financial statements included in the MIT SEC Documents, there has not been: (iA
any declaration, setting aside or payment of any dividend or other distribution
(whether in cash, stock or property) with respect to any of MIT's capital
stock; (ii) any amendment of any term of any outstanding equity security of MIT
or any Subsidiary of MIT; (iii) any repurchase, redemption or other acquisition
by MIT or any Subsidiary of MIT of any outstanding shares of capital stock or
other equity securities of, or other ownership interests in, MIT or any
Subsidiary of MIT; (iv) any material change in any method of accounting or
accounting practice or any tax method, practice or election
 
                                      A-10
<PAGE>
 
by MIT or any Subsidiary of MIT; (v) any amendment of any employment,
consulting, severance, retention or any other agreement between MIT and any
officer or director of MIT; or (vi) any other transaction, commitment, dispute
or other event or condition (financial or otherwise) of any character (whether
or not in the ordinary course of business) that has had a Material Adverse
Effect on MIT, nor has there occurred any such transaction, commitment, dispute
or other event or condition that, with the passage of time, would reasonably be
expected to result in a Material Adverse Effect on MIT, except for general
economic changes, changes in the United States financial markets generally,
changes that affect real estate investment trusts (each a "REIT") generally and
changes that affect industrial real estate generally.
 
  (g) No Undisclosed Material Liabilities. Except as set forth on Schedule
3.1(g) of the MIT Disclosure Schedule or as disclosed in the MIT SEC Documents,
as of the date hereof, there are no liabilities of MIT or any of its
Subsidiaries of any kind whatsoever, whether accrued, contingent, absolute,
determined, determinable or otherwise, that would have a Material Adverse
Effect on MIT, other than: (i) liabilities adequately provided for on the
balance sheet of MIT dated as of September 30, 1998 (including the notes
thereto) contained in MIT's Quarterly Report on Form 10-Q for the quarter ended
September 30, 1998; (ii) liabilities incurred in the ordinary course of
business subsequent to September 30, 1998 which would not, individually or in
the aggregate, be reasonably expected to have a Material Adverse Effect on MIT;
and (iii) liabilities under this Agreement.
 
  (h) No Default. Neither MIT nor any of its Subsidiaries is in default or
violation (and no event has occurred which, with notice or the lapse of time or
both, would constitute a default or violation) of any term, condition or
provision of (i) the MIT Articles of Incorporation or MIT Bylaws or the
comparable charter or organizational documents of any of MIT's Subsidiaries,
(ii) any loan or credit agreement, note, bond, mortgage, indenture, lease or
other agreement, instrument, permit, concession, franchise or license to which
MIT or any of its Subsidiaries is now a party or by which MIT or any of its
Subsidiaries or any of their respective properties or assets is bound or (iii)
any order, writ, injunction, decree, statute, rule or regulation applicable to
MIT or any of its Subsidiaries, except in the case of (ii) and (iii) for
defaults or violations which in the aggregate would not have a Material Adverse
Effect on MIT.
 
  (i) Compliance with Applicable Laws. MIT and its Subsidiaries hold all
permits, licenses, variances, exemptions, orders, franchises and approvals of
all Governmental Entities necessary for the lawful conduct of their respective
businesses (the "MIT Permits"), except where the failure so to hold would not
have a Material Adverse Effect on MIT. MIT and its Subsidiaries are in
compliance with the terms of the MIT Permits, except where the failure so to
comply would not have a Material Adverse Effect on MIT. Except as disclosed in
the MIT SEC Documents, the businesses of MIT and its Subsidiaries are not being
conducted in violation of any law, ordinance or regulation of any Governmental
Entity, except for possible violations which would not have a Material Adverse
Effect on MIT. As of the date of this Agreement, no investigation or review by
any Governmental Entity with respect to MIT or any of its Subsidiaries is
pending and of which MIT has knowledge (as hereinafter defined) or, to the
knowledge of MIT as of the date hereof, is threatened, other than those the
outcome of which would not have a Material Adverse Effect on MIT. For purposes
of this Agreement "knowledge" means the actual knowledge of the executive
officers and directors of the Company or MIT, as applicable.
 
  (j) Litigation. Except as disclosed in the MIT SEC Documents or Schedule
3.1(j) of the MIT Disclosure Schedule, as of the date of this Agreement there
is no suit, action or proceeding pending, or, to the knowledge of MIT,
threatened against or affecting MIT or any Subsidiary of MIT ("MIT
Litigation"), and, as of the date of this Agreement, MIT and its Subsidiaries
have no knowledge of any facts that are likely to give rise to any MIT
Litigation, in each case, that would have a Material Adverse Effect on MIT, nor
is there any judgment, decree, injunction, rule or order of any Governmental
Entity or arbitrator outstanding against MIT or any Subsidiary of MIT ("MIT
Order") that would have a Material Adverse Effect on MIT or its ability to
consummate the transactions contemplated by this Agreement. Schedule 3.1(j) of
the MIT Disclosure Schedule contains an accurate and complete list of all
suits, actions and proceedings pending or, to the knowledge of MIT, threatened
against or affecting MIT or any of its Subsidiaries as of the date hereof.
 
                                      A-11
<PAGE>
 
  (k) Taxes. Except as set forth on Schedule 3.1(k) of the MIT Disclosure
Schedule:
 
    (i) Each of MIT and its Subsidiaries (A) has filed all Tax returns and
  reports required to be filed by it (after giving effect to any filing
  extension properly granted by a Governmental Entity having authority to do
  so) and all such returns and reports are accurate and complete in all
  material respects, and (B) has paid (or MIT has paid on its behalf) all
  Taxes (as defined below) shown on such returns and reports as required to
  be paid by it, except those where the failure to file such tax returns and
  reports or pay such Taxes would not have a Material Adverse Effect on MIT.
  The most recent financial statements contained in the MIT SEC Documents
  reflect an adequate reserve for all material Taxes payable by MIT and its
  Subsidiaries for all taxable periods and portions thereof through the date
  of such financial statements. MIT and each Subsidiary of MIT has
  established (and until the Closing Date shall continue to establish and
  maintain) on its books and records reserves that are adequate for the
  payment of all Taxes not yet due and payable. Since September 30, 1998, MIT
  has incurred no liability for Taxes under Sections 857(b), 860(c) or 4981
  of the Code, including without limitation any Tax arising from a prohibited
  transaction described in Section 857(b)(6) of the Code, and neither MIT nor
  any of its Subsidiaries has incurred any material liability for Taxes other
  than in the ordinary course of business. No event has occurred, and no
  condition or circumstance exists, which presents a material risk that any
  material Tax described in the preceding sentence will be imposed upon MIT.
  No material deficiencies for any Taxes have been proposed, asserted or
  assessed against MIT or any of its Subsidiaries, including claims by any
  taxing authority in a jurisdiction where MIT or any Subsidiary of MIT do
  not file Tax returns but in which any of them is or may be subject to
  taxation, and no requests for waivers of the time to assess any such Taxes
  are pending. As used in this Agreement, "Taxes" includes all federal,
  state, local and foreign income, property, sales, use, franchise,
  employment, payroll, excise, environmental and other taxes, tariffs or
  governmental charges of any nature whatsoever, together with penalties,
  interest or additions to Tax with respect thereto.
 
    (ii) MIT (A) for all taxable years commencing with 1995 through December
  31, 1997 has been subject to taxation as a REIT within the meaning of
  Section 856 of the Code and has satisfied all requirements to qualify as a
  REIT for such years, (B) has operated since December 31, 1997 to the date
  of this representation, and intends to continue to operate, in such a
  manner as to qualify as a REIT for the taxable year ending December 31,
  1998 and the taxable year ending at the Effective Time, and (C) has not
  taken or omitted to take any action which would reasonably be expected to
  result in a challenge to its status as a REIT and, to MIT's knowledge, no
  such challenge is pending or threatened. Each Subsidiary of MIT which is a
  partnership, joint venture or limited liability company (1) has been since
  its formation and continues to be treated for federal income tax purposes
  as a partnership and not as a corporation or an association taxable as a
  corporation and (2) has not since the later of its formation or the
  acquisition by MIT of a direct or indirect interest therein, owned any
  assets (including, without limitation, securities) that would cause MIT to
  violate Section 856(c)(4) of the Code. Each MIT Subsidiary which is a
  corporation has been since its formation a qualified REIT subsidiary under
  Section 856(i) of the Code.
 
    (iii) All Taxes which MIT or the MIT Subsidiaries are required by law to
  withhold or collect, including Taxes required to have been withheld in
  connection with amounts paid or owing to any employee, independent
  contractor, creditor, stockholder or other third party and sales, gross
  receipts and use taxes, have been duly withheld or collected and, to the
  extent required, have been paid over to the proper Governmental Entities or
  are held in separate bank accounts for such purpose. There are no liens for
  Taxes upon the assets of MIT or the MIT Subsidiaries except for statutory
  liens for Taxes not yet due.
 
    (iv) The Tax returns of MIT and the MIT Subsidiaries are not being and
  have not been examined or audited by any taxing authority for any past year
  or periods.
 
    (v) Neither MIT nor the MIT Subsidiaries (A) has filed a consent under
  Section 341(f) of the Code concerning collapsible corporations, or (B) is a
  party to any Tax allocation or sharing agreement.
 
    (vi) MIT does not have any liability for the Taxes of any person other
  than MIT and the MIT Subsidiaries and the MIT Subsidiaries do not have any
  liability for the Taxes of any person other than MIT and the MIT
  Subsidiaries (A) under Treasury Regulation Section 1.1502-6 (or any similar
  provision of state, local or foreign law), (B) as a transferee or
  successor, (C) by contract, or (D) otherwise.
 
                                      A-12
<PAGE>
 
    (vii) Neither MIT nor the MIT Subsidiaries has made any payments, is
  obligated to make any payments, or is a party to an agreement that could
  obligate it to make any payments that will not be deductible under Section
  280G of the Code. MIT and the MIT Subsidiaries have disclosed to the IRS
  all positions taken on its federal income Tax returns which could give rise
  to a substantial understatement of Tax under Section 6662 of the Code.
 
    (viii) Neither MIT nor any MIT Subsidiary has entered into or is subject,
  directly or indirectly, to any "Tax Protection Agreements," except as
  disclosed in Schedule 3.1(k), true and correct copies of which have been
  made available to the Company. As used herein, a "Tax Protection Agreement"
  is an agreement, oral or written, (A) that has as one of its purposes to
  permit a person or entity to take the position that such person or entity
  could defer federal taxable income that otherwise might have been
  recognized upon a transfer of property to any Subsidiary of MIT that is
  treated as a partnership for federal income tax purposes, and (B) that (i)
  prohibits or restricts in any manner the disposition of any assets of MIT
  or any of its Subsidiaries (including, without limitation, requiring MIT or
  any of its Subsidiaries to indemnify any person for any tax liabilities
  resulting from any such disposition), (ii) requires that MIT or any of its
  Subsidiaries maintain, or put in place, or replace, indebtedness, whether
  or not secured by one or more of the MIT Properties (as hereinafter
  defined), or (iii) requires that MIT or any of its Subsidiary offer to any
  person or entity at any time the opportunity to guarantee or otherwise
  assume, directly or indirectly, the risk of loss for federal income tax
  purposes for indebtedness or other liabilities of MIT or any of its
  Subsidiaries.
 
  (l) Pension and Benefit Plans; ERISA. Except as set forth on Schedule 3.1(l)
of the MIT Disclosure Schedule or in the MIT SEC Documents:
 
    (i) All "employee pension benefit plans," as defined in Section 3(2) of
  the Employee Retirement Income Security Act of 1974, as amended ("ERISA"),
  maintained by MIT or any of its Subsidiaries or any trade or business
  (whether or not incorporated) which is under common control, or which is
  treated as a single employer, with MIT under Section 414(b), (c), (m) or
  (o) of the Code ("MIT ERISA Affiliate") or to which MIT or any of its
  Subsidiaries or any MIT ERISA Affiliate contributed or is obligated to
  contribute thereunder within six years prior to the Effective Time (the
  "MIT Pension Plans") intended to qualify under Section 401 of the Code so
  qualify and have been determined by the IRS to be qualified under Section
  401 of the Code and, to the knowledge of MIT as of the date hereof, nothing
  has occurred with respect to the operation of the MIT Pension Plans that
  could reasonably be expected to cause the loss of such qualification or the
  imposition of any material liability, penalty or tax under ERISA or the
  Code.
 
    (ii) No MIT Pension Plan is subject to Title IV of ERISA.
 
    (iii) There is no material violation of ERISA with respect to (A) the
  filing of applicable reports, documents, and notices with the Secretary of
  Labor and the Secretary of the Treasury regarding all "employee benefit
  plans," as defined in Section 3(3) of ERISA, the MIT Pension Plans and all
  other material employee compensation and benefit arrangements or payroll
  practices, including, without limitation, severance pay, sick leave,
  vacation pay, salary continuation for disability, consulting or other
  compensation agreements, retirement, deferred compensation, bonus, long-
  term incentive, stock option, stock purchase, hospitalization, medical
  insurance, life insurance and scholarship programs maintained by MIT or any
  of its Subsidiaries or with respect to which MIT or any of its Subsidiaries
  has any liability (all such plans, other than the MIT Pension Plans, being
  hereinafter referred to as the "MIT Employee Benefit Plans") or (B) the
  furnishing of such documents to the participants or beneficiaries of the
  MIT Employee Benefit Plans or MIT Pension Plans.
 
    (iv) Copies of each MIT Employee Benefit Plan and MIT Pension Plan,
  related trust (or other funding or financing arrangement), and all
  amendments have been made available to the Company, as have the most recent
  summary plan descriptions, administrative service agreements, and Form
  5500.
 
    (v) The MIT Employee Benefit Plans and MIT Pension Plans have been
  maintained, in all material respects, in accordance with their terms and
  with all provisions of ERISA (including rules and regulations thereunder)
  and other applicable Federal and state law, there is no material liability
  for breaches of
 
                                      A-13
<PAGE>
 
  fiduciary duty in connection with the MIT Employee Benefit Plans and MIT
  Pension Plans, and neither MIT nor any of its Subsidiaries or any "party in
  interest" or "disqualified person" with respect to the MIT Employee Benefit
  Plans and MIT Pension Plans has engaged in a material "prohibited
  transaction" within the meaning of Section 4975 of the Code or Section 406
  of ERISA.
 
    (vi) As of the date of this Agreement, there are no material actions,
  suits or claims pending (other than routine claims for benefits) or, to the
  knowledge of MIT, threatened against, or with respect to, the MIT Employee
  Benefit Plans or MIT Pension Plans or their assets.
 
    (vii) Neither the execution and delivery of this Agreement nor the
  consummation of the transactions contemplated hereby will (A) result in any
  payment becoming due to any employee or group of employees of MIT or any of
  its Subsidiaries; (B) increase any benefits otherwise payable under any MIT
  Employee Benefit Plan or MIT Pension Plan; or (C) result in the
  acceleration of the time of payment or vesting of any such benefits. Except
  as described on Schedule 3.1(l) of the MIT Disclosure Schedule, there are
  no severance agreements or employment agreements between MIT or any of its
  Subsidiaries and any employee of MIT or such Subsidiary. True and complete
  copies of all severance agreements and employment agreements described on
  Schedule 3.1(l) of the MIT Disclosure Schedule have been provided to the
  Company.
 
    (viii) Neither MIT nor any of its Subsidiaries has any consulting
  agreement or arrangement with any person involving compensation in excess
  of $100,000 except as are terminable upon one month's notice or less.
 
    (ix) Neither MIT nor any of its Subsidiaries nor any MIT ERISA Affiliate
  contributes to, or has an obligation to contribute to, and has not within
  six years prior to the Effective Time contributed to, or had an obligation
  to contribute to, a multiemployer plan within the meaning of Section 3(37)
  of ERISA.
 
    (x) No stock or other security issued by MIT or any of its Subsidiaries
  forms or has formed a material part of the assets of any MIT Employee
  Benefit Plan or MIT Pension Plan.
 
    (xi) MIT and its ERISA Affiliates have materially complied with the
  requirements of Section 4980B of the Code and Parts 6 and 7 of Subtitle B
  of Title I of ERISA regarding health care coverage under the MIT Employee
  Benefit Plans.
 
    (xii) No amount has been paid by MIT or any of its ERISA Affiliates, and
  no amount is expected to be paid by MIT or any of its ERISA Affiliates,
  which would be subject to the provisions of 162(m) of the Code such that
  all or a part of such payments would not be deductible by the payor.
 
  (m) Labor Matters. Except as set forth on Schedule 3.1(m) of the MIT
Disclosure Schedule or in the MIT SEC Documents:
 
    (i) neither MIT nor any of its Subsidiaries is a party to any collective
  bargaining agreement or other current labor agreement with any labor union
  or organization, and there is no current union representation question
  involving employees of MIT or any of its Subsidiaries, nor does MIT or any
  of its Subsidiaries know of any activity or proceeding of any labor
  organization (or representative thereof) or employee group (or
  representative thereof) to organize any such employees;
 
    (ii) as of the date hereof, there is no unfair labor practice charge or
  grievance arising out of a collective bargaining agreement or other
  grievance procedure against MIT or any of its Subsidiaries pending, or, to
  the knowledge of MIT or any of its Subsidiaries, threatened, that has, or
  will have, a Material Adverse Effect on MIT;
 
    (iii) as of the date hereof, there is no complaint, lawsuit or proceeding
  in any forum by or on behalf of any present or former employee, any
  applicant for employment or any classes of the foregoing alleging breach of
  any express or implied contract of employment, any law or regulation
  governing employment or the termination thereof or other discriminatory,
  wrongful or tortious conduct in connection with the employment relationship
  against MIT or any of its Subsidiaries pending, or, to the knowledge of MIT
  or any of its Subsidiaries, threatened, that has, or will have, a Material
  Adverse Effect on MIT;
 
 
                                      A-14
<PAGE>
 
    (iv) there is no strike, dispute, slowdown, work stoppage or lockout
  pending, or, to the knowledge of MIT or any of its Subsidiaries,
  threatened, against or involving MIT or any of its Subsidiaries that has,
  or will have, a Material Adverse Effect on MIT;
 
    (v) MIT and each of its Subsidiaries are in compliance with all
  applicable laws respecting employment and employment practices, terms and
  conditions of employment, wages, hours of work and occupational safety and
  health, except for non-compliance that does not have, and will not have, a
  Material Adverse Effect on MIT; and
 
    (vi) as of the date hereof, there is no proceeding, claim, suit, action
  or governmental investigation pending or, to the knowledge of MIT or any of
  its Subsidiaries, threatened, in respect to which any current or former
  director, officer, employee or agent of MIT or any of its Subsidiaries is
  or may be entitled to claim indemnification from MIT or any of its
  Subsidiaries pursuant to the MIT Articles of Incorporation or MIT Bylaws or
  any provision of the comparable charter or organizational documents of any
  of MIT's Subsidiaries, as provided in any indemnification agreement to
  which MIT or any Subsidiary of MIT is a party or pursuant to applicable law
  that has, or will have, a Material Adverse Effect on MIT.
 
  (n) Intangible Property. MIT and its Subsidiaries own, possess or have
adequate rights to use all material trademarks, trade names, patents, service
marks, brand marks, brand names, computer programs, databases, industrial
designs and copyrights necessary for the operation of the businesses of each of
MIT and its Subsidiaries (collectively, the "MIT Intangible Property"), except
where the failure to possess or have adequate rights to use such properties
would not have a Material Adverse Effect on MIT. All of the MIT Intangible
Property is owned or licensed by MIT or its Subsidiaries free and clear of any
and all liens, claims or encumbrances, except those that would not have a
Material Adverse Effect on MIT, and neither MIT nor any such Subsidiary has
forfeited or otherwise relinquished any MIT Intangible Property which
forfeiture would result in a Material Adverse Effect on MIT. To the knowledge
of MIT, the use of the MIT Intangible Property by MIT or its Subsidiaries does
not, in any material respect, conflict with, infringe upon, violate or
interfere with or constitute an appropriation of any right, title, interest or
goodwill, including, without limitation, any intellectual property right,
trademark, trade name, patent, service mark, brand mark, brand name, computer
program, database, industrial design, copyright or any pending application
therefor, of any other person, and there have been no claims made, and neither
MIT nor any of its Subsidiaries has received any notice of any claim or
otherwise knows that any of the MIT Intangible Property is invalid or conflicts
with the asserted rights of any other person or has not been used or enforced
or has failed to have been used or enforced in a manner, that would result in
the abandonment, cancellation or unenforceability of any of the MIT Intangible
Property, except for any such conflict, infringement, violation, interference,
claim, invalidity, abandonment, cancellation or unenforceability that would not
have a Material Adverse Effect on MIT.
 
  (o) Environmental Matters. For purposes of this Agreement:
 
    "Environmental Laws" means all federal, state and local laws (including
  common laws), rules, regulations, ordinances, orders and decrees of any
  Governmental Entity, whether now in existence or hereafter enacted and in
  effect at the time of Closing, relating to pollution or the protection of
  human health or the environment of any jurisdiction in which the applicable
  party hereto owns or operates assets or conducts business or owned or
  operated assets or conducted business (whether or not through a predecessor
  entity) (including, without limitation, ambient air, surface water,
  groundwater, land surface, subsurface strata, natural resources or
  wildlife), including, without limitation, laws and regulations relating to
  Releases or threatened Releases of Hazardous Materials or otherwise
  relating to the manufacture, processing, distribution, use, treatment,
  storage, disposal, transport or handling of solid waste or Hazardous
  Materials, and any similar laws, rules, regulations, ordinances, orders and
  decrees of any foreign jurisdiction in which the applicable party hereto
  owns or operates assets or conducts business;
 
    "Hazardous Materials" means (i) any petroleum or petroleum products,
  radioactive materials (including naturally occurring radioactive
  materials), asbestos in any form that is or could become friable, urea
  formaldehyde foam insulation, polychlorinated biphenyls or transformers or
  other equipment that contain dielectric fluid containing polychlorinated
  biphenyls, (ii) any chemicals, materials or substances
 
                                      A-15
<PAGE>
 
  which are now defined as or included in the definition of "solid wastes,"
  "hazardous substances," "hazardous wastes," "hazardous materials,"
  "extremely hazardous substances," "restricted hazardous wastes," "toxic
  substances" or "toxic pollutants," or words of similar import, under any
  Environmental Law and (iii) any other chemical, material, substance or
  waste, exposure to which is now prohibited, limited or regulated under any
  Environmental Law in a jurisdiction in which MIT or any of its Subsidiaries
  operates (for purposes of this Section 3.1(o)) or in which the Company or
  any of its Subsidiaries operates (for purposes of Section 3.2(o)).
 
    "Release" means any spill, effluent, emission, leaking, pumping, pouring,
  emptying, escaping, dumping, injection, deposit, disposal, discharge,
  dispersal, leaching or migration into the indoor or outdoor environment, or
  into or out of any property owned, operated or leased by the applicable
  party or its Subsidiaries; and
 
    "Remedial Action" means all actions, including, without limitation, any
  capital expenditures, required by a Governmental Entity or required under
  any Environmental Law, or voluntarily undertaken to (i) clean up, remove,
  treat, or in any other way ameliorate or address any Hazardous Materials or
  other substance in the indoor or outdoor environment; (ii) prevent the
  Release or threat of Release, or minimize the further Release of any
  Hazardous Material so it does not endanger or threaten to endanger the
  public or employee health or welfare of the indoor or outdoor environment;
  (iii) perform pre-remedial studies and investigations or post-remedial
  monitoring and care pertaining or relating to a Release; or (iv) bring the
  applicable party into compliance with any Environmental Law.
 
    Except as disclosed on Schedule 3.1(o) of the MIT Disclosure Schedule:
 
    (i) The operations of MIT and its Subsidiaries have been conducted, are
  and, as of the Closing Date, will be, in compliance with all Environmental
  Laws, except where the failure to so comply would not have a Material
  Adverse Effect on MIT;
 
    (ii) MIT and its Subsidiaries have obtained and, until the Closing Date,
  will maintain all permits, licenses and registrations, or applications
  relating thereto, and have made and, until the Closing Date, will make all
  filings, reports and notices required under applicable Environmental Laws
  for the continued operations of their respective businesses, except such
  matters the lack or failure of which would not have a Material Adverse
  Effect on MIT;
 
    (iii) MIT and its Subsidiaries are not subject to any outstanding written
  orders issued by, or contracts with, any Governmental Entity or other
  person respecting (A) Environmental Laws, (B) Remedial Action, (C) any
  Release or threatened Release of a Hazardous Material or (D) an assumption
  of responsibility for environmental liabilities of another person, except
  such orders or contracts the compliance with which would not have a
  Material Adverse Effect on MIT;
 
    (iv) As of the date of this Agreement, MIT and its Subsidiaries have not
  received any written communication alleging, with respect to any such
  party, the violation of or liability under any Environmental Law, which
  violation or liability would have a Material Adverse Effect on MIT;
 
    (v) Neither MIT nor any of its Subsidiaries has any contingent liability
  in connection with the Release of any Hazardous Material into the indoor or
  outdoor environment (whether on-site or off-site) or employee or third
  party exposure to Hazardous Materials that would have a Material Adverse
  Effect on MIT;
 
    (vi) The operations of MIT and its Subsidiaries involving the generation,
  transportation, treatment, storage or disposal of hazardous or solid waste,
  as defined and regulated under 40 C.F.R. Parts 260-270 (in effect as of the
  date of this Agreement) or any applicable state equivalent, are in
  compliance with applicable Environmental Laws, except where the failure to
  so comply would not have a Material Adverse Effect on MIT;
 
    (vii) To the knowledge of MIT, there is not now on or in any property of
  MIT or its Subsidiaries or any property for which MIT or its Subsidiaries
  is potentially liable any of the following: (A) any underground storage
  tanks or surface impoundments or (B) any on-site disposal of Hazardous
  Material, any of which ((A) or (B) preceding) would have a Material Adverse
  Effect on MIT; and
 
                                      A-16
<PAGE>
 
    (viii) No MIT Property (as hereinafter defined) is included or, to the
  knowledge of MIT, proposed for inclusion on the National Priorities List
  issued pursuant to the Comprehensive Environmental Response, Compensation
  and Liability Act of 1980, as amended ("CERCLA") by the United States
  Environmental Protection Agency (the "EPA") or on the Comprehensive
  Environmental Response, Compensation, and Liability Information System
  database maintained by the EPA, and MIT has no knowledge that any MIT
  Property has otherwise been identified in a published writing by the EPA as
  a potential CERCLA removal, remedial or response site or, to the knowledge
  of MIT, proposed for inclusion on any similar list of potentially
  contaminated sites pursuant to any other Environmental Law.
 
  (p) Properties.
 
  (i) MIT or one of MIT's Subsidiaries owns fee simple title (or where
indicated, leasehold estate) to each of the real properties identified in
Schedule 3.1(p) to the MIT Disclosure Schedule (the "MIT Properties"), except
as listed on Schedule 3.1(p) to the MIT Disclosure Schedule, which are all of
the real estate properties owned by them, in each case (except as provided
below) free and clear of Encumbrances. The MIT Properties are not subject to
any rights of way, written agreements, laws, ordinances and regulations
affecting building use or occupancy (collectively, "Property Restrictions"),
except for (A0 Encumbrances and Property Restrictions set forth in Schedule
3.1(p) to the MIT Disclosure Schedule, (B) Property Restrictions imposed or
promulgated by law or any governmental body or authority with respect to real
property, including zoning regulations, provided that they do not materially
adversely affect the currently intended use of any MIT Property, (C)
Encumbrances and Property Restrictions disclosed on existing title reports or
existing surveys (in either case copies of which title reports or surveys have
been delivered or made available to the Company), and (D) mechanics',
carriers', workmen's, repairmen's and materialmen's liens and other
Encumbrances, Property Restrictions and other limitations of any kind, if any,
which, individually or in the aggregate, do not materially detract from the
value of or materially interfere with the present use of any of the MIT
Properties subject thereto or affected thereby, and do not otherwise have a
Material Adverse Effect on MIT. Except as provided in Schedule 3.1(p) to the
MIT Disclosure Schedule, valid policies of title insurance have been issued,
insuring MIT's or the applicable MIT Subsidiaries' fee simple title or
leasehold estate to the MIT Properties in amounts at least equal to the value
of such MIT Properties at the time of the issuance of such policy, subject only
to the matters disclosed above and on the MIT Disclosure Schedule, and such
policies are, at the date hereof, in full force and effect and no material
claim has been made against any such policy.
 
  (ii) All properties currently under development or construction by MIT or the
MIT Subsidiaries and all properties currently proposed for acquisition,
development or commencement of construction prior to the Effective Time by MIT
and the MIT Subsidiaries are listed as such on Schedule 3.1(p) to the MIT
Disclosure Schedule. All executory agreements entered into by MIT or any MIT
Subsidiary relating to the development or construction of industrial or other
real estate properties (other than agreements for architectural, engineering,
planning, accounting, legal or other professional services or agreements for
material or labor) are listed on Schedule 3.1(p) to the MIT Disclosure
Schedule. Copies of such agreements, all of which have previously been
delivered or made available to the Company are listed on the MIT Disclosure
Schedule and are true and correct.
 
  (q) Insurance. Schedule 3.1(q) of the MIT Disclosure Schedule sets forth an
insurance schedule of MIT's and each of its Subsidiaries' directors' and
officers' liability insurance. MIT maintains insurance with financially
responsible insurers in such amounts and covering such risks as are in
accordance with normal industry practice for companies engaged in businesses
similar to those of MIT and each of its Subsidiaries (taking into account the
cost and availability of such insurance). Except as set forth on Schedule
3.1(q), neither MIT nor any MIT Subsidiary has received any notice of
cancellation or termination with respect to any material insurance policy of
MIT or any MIT Subsidiary.
 
  (r) Opinion of Financial Advisor. The Board of Directors of MIT has received
the oral opinion of Goldman, Sachs & Co. addressed to such Board to the effect
that, as of the date hereof, the Merger Consideration to be received by the
holders of the MIT Common Stock in accordance with Section 2.1 is fair
 
                                      A-17
<PAGE>
 
from a financial point of view to the holders of the MIT Common Stock. A copy
of the written opinion of Goldman, Sachs & Co. described above will be provided
to the Company promptly after it has been received from Goldman, Sachs & Co.
 
  (s) Vote Required. The affirmative vote of the holders of at least a majority
of the outstanding shares of MIT Common Stock is the only vote of the holders
of any class or series of MIT capital stock necessary to approve this Agreement
and the transactions contemplated hereby.
 
  (t) Beneficial Ownership of Company Common Stock. As of the date hereof,
neither MIT nor its Subsidiaries "beneficially owns" (as defined in Rule 13d-3
under the Exchange Act) any of the outstanding Company Common Stock or any of
the Company's outstanding debt securities.
 
  (u) Brokers. Except for the fees and expenses payable to Goldman, Sachs & Co.
and Prudential Securities, Inc., which fees are reflected in each such firm's
respective engagement letter with MIT (copies of which have been delivered to
the Company), no broker, investment banker, or other person is entitled to any
broker's, finder's or other similar fee or commission in connection with the
transactions contemplated by this Agreement based upon arrangements made by or
on behalf of MIT.
 
  (v) Investment Company Act of 1940. Neither MIT nor any of its Subsidiaries
is, or at the Effective Time will be, required to be registered as an
investment company under the Investment Company Act of 1940, as amended (the
"Investment Company Act").
 
  (w) Amendment to Rights Agreement; State Takeover Laws.
 
    (i) The Board of Directors of MIT has adopted a resolution approving an
  amendment to the MIT Rights Agreement to provide that (A) the MIT Rights
  Agreement shall terminate and the MIT Rights shall be canceled upon the
  consummation of the Merger and that (B) none of the execution and delivery
  of this Agreement, the conversion of shares of MIT Common Stock in the
  right to receive the Merger Consideration in accordance with Article II of
  this Agreement and the consummation of the merger or any other transaction
  contemplated hereby will cause (w) the MIT rights to be exercisable under
  the MIT Rights Agreement, (x) the Company or any of its Subsidiaries or any
  of its stockholders to be deemed an "Acquiring Person" (as defined in the
  MIT Rights Agreement), or (y) any such event to be deemed a "Distribution
  Date" (as defined in the MIT Rights Agreement) or the "Shares Acquisition
  Date" (as defined in the MIT Rights Agreement). MIT shall not redeem any of
  the MIT Rights prior to the Effective Time unless required to do so by a
  court of competent jurisdiction.
 
    (ii) MIT has taken all action necessary to exempt the transaction
  contemplated by this Agreement from (A) the operation of any "fair price,"
  "moratorium," "control share acquisition," "business combination," or any
  other anti-takeover statute or similar statute enacted under the state or
  federal laws of the United States or similar statute or regulation (a
  "Takeover Statute") and (B) any ownership restrictions or limitations set
  forth in the MIT Articles of Incorporation or MIT By-Laws.
 
  (x) Contracts.
 
  (i) Except as disclosed in the MIT SEC Documents or in Schedule 3.1(x) to the
MIT Disclosure Schedule, there is no contract or agreement that purports to
limit in any material respect the names or the geographic location in which MIT
or any MIT Subsidiary may conduct its business. Neither MIT nor any MIT
Subsidiary has received a written notice that MIT or any MIT Subsidiary is in
violation of or in default under (nor to the knowledge of MIT does there exist
any condition which upon the passage of time or the giving of notice or both
would cause such a violation of or default under) any material loan or credit
agreement, note, bond, mortgage, indenture, lease, permit, concession,
franchise, license or any other material contract, agreement, arrangement or
understanding, to which it is a party or by which it or any of its properties
or assets is bound, except as set forth in Schedule 3.1(x), nor does such a
violation or default exist, except to the extent that such violation or
default, individually or in the aggregate, would not have a MIT Material
Adverse Effect.
 
  (ii) Schedule 3.1(x) sets forth each interest rate cap, interest rate collar,
interest rate swap, currency hedging transaction, and any other agreement
relating to a similar transaction to which MIT or any MIT Subsidiary is a party
or an obligor with respect thereto.
 
                                      A-18
<PAGE>
 
  (iii) Except as set forth in Schedule 3.1(x), neither MIT nor any of MIT
Subsidiaries is party to any agreement which would restrict any of them from
prepaying any of their indebtedness without penalty or premium at any time or
which requires any of them to maintain any amount of indebtedness with respect
to any of the MIT Properties.
 
  (iv) Neither MIT nor any MIT Subsidiaries is a party to any agreement
relating to the management of any of the MIT Properties which is not terminable
by MIT or the MIT Subsidiary without penalty on less than 61 days notice except
the agreements described in Schedule 3.1(x).
 
  (v) Schedule 3.1(x) lists all agreements entered into by MIT or any of the
MIT Subsidiaries providing for the sale of, or option to sell, any MIT
Properties or the purchase of, or option to purchase, any real estate which are
currently in effect.
 
  (vi) Except as set forth in Schedule 3.1(x), neither MIT nor any MIT
Subsidiary has any continuing contractual liability (A) for indemnification or
otherwise under any agreement relating to the sale of real estate previously
owned, whether directly or indirectly, by MIT or any MIT Subsidiary, except for
standard indemnification provisions entered into in the normal course of
business, (B) to pay any additional purchase price for any of the MIT
Properties, or (C) to make any prorations or adjustments to prorations
involving an amount in excess of $50,000 (other than real estate taxes) that
may previously have been made with respect to any property currently or
formerly owned by MIT.
 
  (vii) Except as set forth in Schedule 3.1(x), there are no material
outstanding contractual obligations of MIT or any MIT Subsidiary to provide any
funds to, or make any investment (in the form of a loan, capital contribution
or otherwise) in, any MIT Subsidiary or any other Person.
 
  (viii) Except as set forth in Schedule 3.1(x), there are no indemnification
agreements entered into by and between MIT and any director or officer of MIT
or any of its Subsidiaries.
 
  3.2 Representations and Warranties of the Company. The Company represents and
warrants to MIT as follows (in each case as qualified by matters reflected on
the disclosure schedule dated as of the date of this Agreement and delivered by
the Company to MIT on or prior to the date of this Agreement (the "Company
Disclosure Schedule") and made a part hereof by reference, each such matter
qualifying each representation and warranty, as applicable, notwithstanding any
specific Section or Schedule reference or lack thereof):
 
  (a) Organization, Standing and Power. The Company is a real estate investment
trust duly formed and existing under Title 8 and is in good standing with the
State Department of Assessments and Taxation of Maryland. Each of the
Significant Subsidiaries (as defined below) is a corporation or partnership
duly organized, validly existing and in good standing under the laws of its
state of incorporation or organization, has all requisite power and authority
to own, lease and operate its properties and to carry on its business as now
being conducted, and is duly qualified and in good standing to do business in
each jurisdiction in which the business it is conducting, or the operation,
ownership or leasing of its properties, makes such qualification necessary,
other than in such jurisdictions where the failure so to qualify would not have
a Material Adverse Effect on the Company. All Significant Subsidiaries of the
Company and their respective jurisdictions of incorporation or organization, as
well as the respective ownership of the Company in such Subsidiaries, if not
wholly owned, are identified on Schedule 3.2(a) of the Company Disclosure
Schedule. The Company has heretofore delivered to MIT complete and correct
copies of its Declaration of Trust and Bylaws, each as amended to date. As used
in this Agreement, a "Significant Subsidiary" means any Subsidiary of the
Company that would constitute a Significant Subsidiary of the Company within
the meaning of Rule 1-02 of Regulation S-X of the Securities and Exchange
Commission.
 
  (b) Capital Structure. As of the date hereof, the authorized beneficial
interest of the Company consists of 230,000,000 shares of beneficial interest,
par value $0.01 per share, of which 200,450,000 shares are Company Common
Stock, 5,400,000 shares have been designated as Company Series A Preferred
Shares, 8,050,000
 
                                      A-19
<PAGE>
 
shares have been designated as Company Series B Convertible Preferred Shares,
2,000,000 shares have been designated as Company Series C Preferred Shares,
10,000,000 shares have been designated as Company Series D Preferred Shares,
and 2,300,000 shares have been designated as Company Series A Junior
Participating Preferred Shares. At the close of business on October 31, 1998:
(A) 123,203,576 shares of Company Common Stock were issued and outstanding; (B)
5,400,000 Company Series A Preferred Shares were issued and outstanding;
7,698,700 Company Series B Convertible Preferred Shares were issued and
outstanding; 2,000,000 Company Series C Preferred Shares were issued and
outstanding; 10,000,000 Company Series D Preferred Shares were issued and
outstanding; and no Company Series A Junior Participating Preferred Shares were
issued or outstanding; (C) 9,600,000 shares of Company Common Stock were
reserved for issuance pursuant to the Company's 1997 Long-Term Incentive Plan
(the "Company Stock Plan") and 100,000 shares of Company Common Stock were
reserved for issuance under the Company's Share Option Plan for Outside
Trustees, of which 2,884,774 shares of Company Common Stock were subject to
issuance upon vesting of restricted stock grants or exercise of options or
awards granted to officers, directors or employees of the Company and its
subsidiaries pursuant to such plans; and (D) no Voting Debt was issued and
outstanding. All outstanding shares of Company Common Stock are validly issued,
fully paid and, except as described in the Company SEC Documents, nonassessable
and are not subject to preemptive rights. Except as set forth on Schedule
3.2(b) of the Company Disclosure Schedule, all outstanding shares of capital
stock of the Subsidiaries of the Company are owned by the Company, or a direct
or indirect wholly owned Subsidiary of the Company, free and clear of all
Encumbrances. Except as set forth in this Section 3.2(b) or on Schedule 3.2(b)
of the Company Disclosure Schedule, and except for changes since October 31,
1998 resulting from the exercise of stock options, stock grants or other awards
granted prior to October 31, 1998 pursuant to the Company Stock Plan, or as
contemplated by this Agreement, there are outstanding: (1) no shares of
beneficial interest, Voting Debt or other voting securities of the Company; (2)
no securities of the Company or any Subsidiary of the Company or securities or
assets of any other entity convertible into or exchangeable for shares of
beneficial interest, capital stock, Voting Debt or other voting securities of
the Company or any Subsidiary of the Company; and (3) no options, warrants,
calls, rights (including preemptive rights), commitments or agreements to which
the Company or any Subsidiary of the Company is a party or by which it is bound
in any case obligating the Company or any Subsidiary of the Company to issue,
deliver, sell, purchase, redeem or acquire, or cause to be issued, delivered,
sold, purchased, redeemed or acquired, additional shares of beneficial
interest, capital stock or any Voting Debt or other voting securities of the
Company or of any Subsidiary of the Company, or obligating the Company or any
Subsidiary of the Company to grant, extend or enter into any such option,
warrant, call, right, commitment or agreement. There are not as of the date
hereof and there will not be at the Effective Time any stockholder agreements,
voting trusts or other agreements or understandings to which the Company is a
party or by which it is bound relating to the voting of any shares of the
beneficial interest of the Company that will limit in any way the solicitation
of proxies by or on behalf of the Company from, or the casting of votes by, the
stockholders of the Company with respect to the Merger. There are no
restrictions on the Company to vote the stock of any of its Subsidiaries. All
dividends or distributions on securities of the Company that have been
authorized prior to the date of this Agreement have been paid in full. When
issued in accordance with this Agreement, the shares of Company Common Stock
and Company Cumulative Redeemable Preferred Stock issued pursuant to the Merger
will be duly authorized and validly issued, fully paid and, except as described
in the Company SEC Documents, nonassessable and not subject to preemptive (or
similar) rights. When issued in accordance with this Agreement upon exercise of
the MIT Stock Options and the MIT Warrants, in each case to be assumed pursuant
to the Merger, the shares of Company Common Stock issued thereunder will be
duly authorized and validly issued, fully paid and, except as described in the
Company SEC Documents, nonassessable and not subject to preemptive (or similar)
rights.
 
  (c) Authority; No Violations, Consents and Approvals.
 
  (i) The Board of Trustees of the Company has approved and declared advisable
the Merger and this Agreement, and declared the Merger and this Agreement to be
in the best interests of the stockholders of the Company. The trustees of the
Company have advised MIT and the Company that they intend to vote or cause to
be voted all of the shares of Company Common Stock beneficially owned by them
and their affiliates in
 
                                      A-20
<PAGE>
 
favor of approval of the Merger and this Agreement (including the issuance of
Company Common Stock). The Company has all requisite trust power and authority
to enter into this Agreement and, subject, with respect to consummation of the
Merger, to approval of this Agreement and the Merger by the stockholders of the
Company in accordance with Title 8 and the Declaration of Trust and Bylaws of
the Company, and to consummate the transactions contemplated hereby. The
execution and delivery of this Agreement and the consummation of the
transactions contemplated hereby have been duly authorized by all necessary
trust action on the part of the Company, subject, with respect to the
consummation of the Merger, to approval of this Agreement and the Merger by the
stockholders of the Company in accordance with Title 8 and the Declaration of
Trust and Bylaws of the Company. This Agreement has been duly executed and
delivered by the Company and, subject, with respect to consummation of the
Merger, to approval of this Agreement and the Merger by the stockholders of the
Company in accordance with Title 8 and the Declaration of Trust and Bylaws of
the Company, and assuming this Agreement constitutes the valid and binding
obligation of MIT, constitutes a valid and binding obligation of the Company
enforceable in accordance with its terms, subject as to enforceability, to
bankruptcy, insolvency, reorganization, moratorium and other laws of general
applicability relating to or affecting creditors' rights and to general
principles of equity (regardless of whether such enforceability is considered
in a proceeding in equity or at law).
 
  (ii) Except as set forth on Schedule 3.2(c) of the Company Disclosure
Schedule, the execution and delivery of this Agreement does not, and the
consummation of the transactions contemplated hereby and compliance with the
provisions hereof will not, conflict with, or result in any violation of, or
default (with or without notice or lapse of time, or both) under, or give rise
to a right of termination, cancellation or acceleration of any material
obligation or to the loss of a material benefit under, or give rise to a right
of purchase under, result in the creation of any Encumbrance upon any of the
properties or assets of the Company or any of its Subsidiaries under, require
the consent or approval of any third party lender or otherwise result in a
material detriment to the Company or any of its Subsidiaries under, any
provision of (A) the Declaration of Trust or Bylaws of the Company or any
provision of the comparable charter or organizational documents of any of its
Subsidiaries, (B) any loan or credit agreement, note, bond, mortgage,
indenture, lease or other agreement, instrument, permit, concession, franchise
or license applicable to the Company or any of its Subsidiaries or their
respective properties or assets or any guarantee by the Company or any of its
Subsidiaries of the foregoing, (C) any joint venture or other ownership
arrangement or (D) assuming the consents, approvals, authorizations or permits
and filings or notifications referred to in Section 3.2(c)(iii) are duly and
timely obtained or made, any judgment, order, decree, statute, law, ordinance,
rule or regulation applicable to the Company or any of its Subsidiaries or any
of their respective properties or assets, other than, in the case of clauses
(B), (C) and (D), any such conflicts, violations, defaults, rights,
Encumbrances or detriments that, individually or in the aggregate, would not
have a Material Adverse Effect on the Company, materially impair the ability of
the Company to perform its obligations hereunder or prevent the consummation of
any of the transactions contemplated hereby.
 
  (iii) Except as set forth on Schedule 3.2(c) of the Company Disclosure
Schedule, no consent, approval, order or authorization of, or registration,
declaration or filing with, or permit from any Governmental Entity is required
by or with respect to the Company or any of its Subsidiaries in connection with
the execution and delivery of this Agreement by the Company or the consummation
by the Company of the transactions contemplated hereby, as to which the failure
to obtain or make would have a Material Adverse Effect on the Company, except
for: (A) the filing of a premerger notification report by the Company or its
ultimate parent under the HSR Act and the expiration or termination of the
applicable waiting period with respect thereto; (B) the filing with the SEC of
the Joint Proxy Statement, the S-4, such reports under Section 13(a) of the
Exchange Act and such other compliance with the Securities Act and the Exchange
Act and the rules and regulations thereunder as may be required in connection
with this Agreement and the transactions contemplated hereby, and the obtaining
from the SEC of such orders as may be so required; (C) the filing of the
Articles of Merger with, and acceptance for record of the Articles of Merger
by, the State Department of Assessments and Taxation of Maryland; (D) filings
with, and approval of, the Exchange; (E) such filings and approvals as may be
required by any applicable state securities, "blue sky" or takeover laws or
environmental laws; (F) such
 
                                      A-21
<PAGE>
 
filings and approvals as may be required by any foreign premerger notification,
securities, corporate or other law, rule or regulation; and (G) any such
consent, approval, order, authorization, registration, declaration, filing, or
permit that the failure to obtain or make would not, individually or in the
aggregate, have a Material Adverse Effect on the Company, materially impair the
ability of the Company to perform its obligations hereunder or prevent the
consummation of any of the transactions contemplated hereby.
 
  (d) SEC Documents. The Company has made available to MIT a true and complete
copy of each report, schedule, registration statement and definitive proxy
statement filed by the Company with the SEC since January 1, 1996 and prior to
or on the date of this Agreement (the "Company SEC Documents"), which are all
the documents (other than preliminary material) that the Company was required
to file with the SEC between December 31, 1996 and the date of this Agreement.
As of their respective dates, the Company SEC Documents complied in all
material respects with the requirements of the Securities Act or the Exchange
Act, as the case may be, and the rules and regulations of the SEC thereunder
applicable to such Company SEC Documents, and none of the Company SEC Documents
contained any untrue statement of a material fact or omitted to state a
material fact required to be stated therein or necessary to make the statements
therein, in light of the circumstances under which they were made, not
misleading. The Company has no outstanding and unresolved comments from the SEC
with respect to any of the Company SEC Documents. The financial statements of
the Company included in the Company SEC Documents complied as to form in all
material respects with the published rules and regulations of the SEC with
respect thereto, were prepared in accordance with GAAP applied on a consistent
basis during the periods involved (except as may be indicated in the notes
thereto or, in the case of the unaudited statements, as permitted by Rule 10-01
of Regulation S-X of the SEC) and fairly present in accordance with applicable
requirements of GAAP (subject, in the case of the unaudited statements, to
normal, recurring adjustments, none of which are material) the consolidated
financial position of the Company and its consolidated Subsidiaries as of their
respective dates and the consolidated results of operations and the
consolidated cash flows of the Company and its consolidated Subsidiaries for
the periods presented therein. Except as disclosed in the Company SEC
Documents, there are no agreements, arrangements or understandings between the
Company and any party who is at the date of this Agreement or was at any time
prior to the date hereof but after January 1, 1996 an Affiliate (as defined in
Section 4.1(k)) of the Company that are required to be disclosed in the Company
SEC Documents.
 
  (e) Information Supplied. None of the information supplied or to be supplied
by the Company for inclusion or incorporation by reference in the S-4 will, at
the time the S-4 becomes effective under the Securities Act or at the Effective
Time, contain any untrue statement of a material fact or omit to state any
material fact required to be stated therein or necessary to make the statements
therein, in light of the circumstances under which they are made, not
misleading, and none of the information supplied or to be supplied by the
Company and included or incorporated by reference in the Joint Proxy Statement
will, at the date mailed to stockholders of MIT or the Company, as the case may
be, or at the time of the meeting of such stockholders to be held in connection
with the Merger or at the Effective Time, contain any untrue statement of a
material fact or omit to state any material fact required to be stated therein
or necessary in order to make the statements therein, in light of the
circumstances under which they are made, not misleading. If at any time prior
to the Effective Time any event with respect to the Company or any of its
Subsidiaries, or with respect to other information supplied by the Company for
inclusion in the Joint Proxy Statement or the S-4, shall occur which is
required to be described in an amendment of, or a supplement to, the S-4 or the
Joint Proxy Statement, such event shall be so described, and such amendment or
supplement shall be promptly filed with the SEC. The Joint Proxy Statement,
insofar as it relates to the Company or other Subsidiaries of the Company or
other information supplied by the Company for inclusion or incorporation by
reference therein, will comply as to form in all material respects with the
provisions of the Exchange Act and the rules and regulations thereunder.
 
  (f) Absence of Certain Changes or Events. Except as set forth on Schedule
3.2(f) of the Company Disclosure Schedule or as disclosed in or reflected in
the financial statements included in the Company SEC Documents, and except as
contemplated by this Agreement, since the date of the most recent audited
financial statements included in the Company SEC Documents there has not been:
(i) any declaration, setting aside or
 
                                      A-22
<PAGE>
 
payment of any dividend or other distribution (whether in cash, stock or
property) with respect to any shares of the Company's beneficial interest; (ii)
any amendment of any material term of any outstanding equity security of the
Company or any Subsidiary of the Company; (iii) any repurchase, redemption or
other acquisition by the Company or any Subsidiary of the Company of any
outstanding shares of beneficial interest, capital stock or other equity
securities of, or other ownership interests in, the Company or any Subsidiary
of the Company; (iv) any material change in any method of accounting or
accounting practice or any tax method, practice or election by the Company or
any Subsidiary of the Company; (v) any amendment of any employment, consulting,
severance, retention or any other agreement between the Company and any officer
or trustee of the Company; or (vi) any other transaction, commitment, dispute
or other event or condition (financial or otherwise) of any character (whether
or not in the ordinary course of business) that has had a Material Adverse
Effect on the Company, nor has there occurred any such transaction, commitment,
dispute or other event or condition that, with the passage of time, would
reasonably be expected to result in a Material Adverse Effect on the Company,
except for general economic changes, changes in the United States financial
markets generally, changes that affect REITs generally and changes that affect
industrial real estate generally.
 
  (g) No Undisclosed Material Liabilities. Except as set forth on Schedule
3.2(g) of the Company Disclosure Schedule or in the Company SEC Documents, as
of the date hereof, there are no liabilities of the Company or any of its
Subsidiaries of any kind whatsoever, whether accrued, contingent, absolute,
determined, determinable or otherwise, that would have a Material Adverse
Effect on the Company, other than: (i) liabilities adequately provided for on
the balance sheet of the Company dated as of September 30, 1998 (including the
notes thereto) contained in the Company's Quarterly Report on Form 10-Q for the
quarter ended September 30, 1998; (ii) liabilities incurred in the ordinary
course of business subsequent to September 30, 1998 which would not,
individually or in the aggregate, be reasonably expected to have a Material
Adverse Effect on the Company; and (iii) liabilities under this Agreement.
 
  (h) No Default. Neither the Company nor any of its Subsidiaries is in default
or violation (and no event has occurred which, with notice or the lapse of time
or both, would constitute a default or violation) of any term, condition or
provision of (i) the Declaration of Trust or Bylaws of the Company or the
comparable charter or organizational documents of any of its Subsidiaries, (ii)
any loan or credit agreement, note, bond, mortgage, indenture, lease or other
agreement, instrument, permit, concession, franchise or license to which the
Company or any of its Subsidiaries is now a party or by which the Company or
any of its Subsidiaries or any of their respective properties or assets is
bound (except for the requirement under certain of such instruments to file
supplemental indentures as a result of the transactions contemplated hereby) or
(iii) any order, writ, injunction, decree, statute, rule or regulation
applicable to the Company or any of its Subsidiaries, except in the case of
clauses (ii) and (iii) for defaults or violations which in the aggregate would
not have a Material Adverse Effect on the Company.
 
  (i) Compliance with Applicable Laws. The Company and its Subsidiaries hold
all permits, licenses, variances, exemptions, orders, franchises and approvals
of all Governmental Entities necessary for the lawful conduct of their
respective businesses (the "Company Permits"), except where the failure so to
hold would not have a Material Adverse Effect on the Company. The Company and
its Subsidiaries are in compliance with the terms of the Company Permits,
except where the failure so to comply would not have a Material Adverse Effect
on the Company. Except as disclosed in the Company SEC Documents, the
businesses of the Company and its Subsidiaries are not being conducted in
violation of any law, ordinance or regulation of any Governmental Entity,
except for possible violations which would not have a Material Adverse Effect
on the Company. As of the date of this Agreement, no investigation or review by
any Governmental Entity with respect to the Company or any of its Subsidiaries
is pending and of which the Company has knowledge or, to the knowledge of the
Company as of the date hereof, is threatened, other than those the outcome of
which would not have a Material Adverse Effect on the Company.
 
  (j) Litigation. Except as disclosed in the Company SEC Documents or Schedule
3.2(j) of the Company Disclosure Schedule, as of the date of this Agreement
there is no suit, action or proceeding pending, or, to the knowledge of the
Company, threatened against or affecting the Company or any Subsidiary of the
Company
 
                                      A-23
<PAGE>
 
("Company Litigation"), and, as of the date of this Agreement, the Company and
its Subsidiaries have no knowledge of any facts that are likely to give rise to
any Company Litigation, in each case, that would have a Material Adverse Effect
on the Company, nor is there any judgment, decree, injunction, rule or order of
any Governmental Entity or arbitrator outstanding against the Company or any
Subsidiary of the Company ("Company Order") that would have a Material Adverse
Effect on the Company or its ability to consummate the transactions
contemplated by this Agreement. Schedule 3.2(j) of the Company Disclosure
Schedule contains an accurate and complete list of all suits, actions and
proceedings pending or, to the knowledge of the Company, threatened against or
affecting the Company or any of its Subsidiaries as of the date hereof.
 
  (k) Taxes. Except as set forth on Schedule 3.2(k) of the Company Disclosure
Schedule:
 
    (i) Each of the Company and its Subsidiaries (A) has filed all Tax
  returns and reports required to be filed by it (after giving effect to any
  filing extension properly granted by a Governmental Entity having authority
  to do so) and all such returns and reports are accurate and complete in all
  material respects, and (B) has paid (or the Company has paid on its behalf)
  all Taxes (as defined below) shown on such returns and reports as required
  to be paid by it, except those where the failure to file such tax returns
  and reports or pay such Taxes would not have a Material Adverse Effect on
  the Company. The most recent financial statements contained in the Company
  SEC Documents reflect an adequate reserve for all material Taxes payable by
  the Company and its Subsidiaries for all taxable periods and portions
  thereof through the date of such financial statements. The Company and the
  Company Subsidiaries have established reserves that are adequate for the
  payment of all Taxes not yet due and payable. Since September 30, 1998, the
  Company has incurred no liability for Taxes under Sections 857(b), 860(c)
  or 4981 of the Code, including without limitation any Tax arising from a
  prohibited transaction described in Section 857(b)(6) of the Code, and
  neither the Company nor any of its Subsidiaries has incurred any material
  liability for Taxes other than in the ordinary course of business. No event
  has occurred, and no condition or circumstance exists, which presents a
  material risk that any material Tax described in the preceding sentence
  will be imposed upon the Company. No material deficiencies for any Taxes
  have been proposed, asserted or assessed against the Company or any of its
  Subsidiaries, including claims by any taxing authority in a jurisdiction
  where the Company and the Company Subsidiaries do not file Tax returns but
  in which any of them is or may be subject to taxation, and no requests for
  waivers of the time to assess any such Taxes are pending.
 
    (ii) The Company (A) for all taxable years commencing with December 31,
  1993 through December 31, 1997 has been subject to taxation as a REIT
  within the meaning of Section 856 of the Code and has satisfied all
  requirements to qualify as a REIT for such years, (B) has operated since
  December 31, 1997 to the date of this representation, and intends to
  continue to operate, in such a manner as to qualify as a REIT for the
  taxable year ending December 31, 1998, and (C) has not taken or omitted to
  take any action which would reasonably be expected to result in a challenge
  to its status as a REIT and, to the Company's knowledge, no such challenge
  is pending or threatened. Each Subsidiary of the Company which is a
  partnership, joint venture or limited liability company (1) has been since
  its formation and continues to be treated for federal income tax purposes
  as a partnership and not as a corporation or an association taxable as a
  corporation and (2) has not since the later of its formation or the
  acquisition by the Company of a direct or indirect interest therein, owned
  any assets (including, without limitation, securities) that would cause the
  Company to violate Section 856(c)(4) of the Code. Each Company Subsidiary
  which is a corporation has been since its formation a qualified REIT
  subsidiary under Section 856(i) of the Code.
 
    (iii) All Taxes which the Company or the Company Subsidiaries are
  required by law to withhold or collect, including Taxes required to have
  been withheld in connection with amounts paid or owing to any employee,
  independent contractor, creditor, stockholder or other third party and
  sales, gross receipts and use taxes, have been duly withheld or collected
  and, to the extent required, have been paid over to the proper Governmental
  Entities or are held in separate bank accounts for such purpose. There are
  no liens for Taxes upon the assets of the Company or the Company
  Subsidiaries except for statutory liens for Taxes not yet due.
 
 
                                      A-24
<PAGE>
 
    (iv) The Tax returns of the Company and the Company Subsidiaries are not
  being and have not been examined or audited by any taxing authority for any
  past year or periods.
 
    (v) Neither the Company nor the Company Subsidiaries (A) has filed a
  consent under Section 341(f) of the Code concerning collapsible
  corporations, or (B) is a party to any Tax allocation or sharing agreement.
 
    (vi) Except as disclosed in Schedule 3.2(k), the Company does not have
  any liability for the Taxes of any person other than the Company and the
  Company Subsidiaries and the Company Subsidiaries do not have any liability
  for the Taxes of any person other than the Company and the Company
  Subsidiaries (A) under Treasury Regulation Section 1.1502-6 (or any similar
  provision of state, local or foreign law), (B) as a transferee or
  successor, (C) by contract, or (D) otherwise.
 
    (vii) Neither the Company nor the Company Subsidiaries has made any
  payments, is obligated to make any payments, or is a party to an agreement
  that could obligate it to make any payments that will not be deductible
  under Section 280G of the Code. The Company and the Company Subsidiaries
  have disclosed to the IRS all positions taken on its federal income Tax
  returns which could give rise to a substantial understatement of Tax under
  Section 6662 of the Code.
 
  (l) Pension and Benefit Plans; ERISA. Except as set forth on Schedule 3.2(l)
of the Company Disclosure Schedule or in the Company SEC Documents:
 
    (i) All "employee pension plans," as defined in Section 3(2) of ERISA,
  maintained by the Company or any of its Subsidiaries or any trade or
  business (whether or not incorporated) which is under common control, or
  which is treated as a single employer, with the Company under Section
  414(b), (c), (m) or (o) of the Code ("Company ERISA Affiliate") or to which
  the Company or any of its Subsidiaries or any Company ERISA Affiliate
  contributed or is obligated to contribute thereunder within six years prior
  to the Effective Time (the "Company Pension Plans") intended to qualify
  under Section 401 of the Code so qualify and have been determined by the
  IRS to be qualified under Section 401 of the Code and, to the knowledge of
  the Company as of the date hereof, nothing has occurred with respect to the
  operation of the Company Pension Plans that could reasonably be expected to
  cause the loss of such qualification or the imposition of any material
  liability, penalty, or tax under ERISA or the Code.
 
    (ii) No Company Pension Plan is subject to Title IV of ERISA.
 
    (iii) There is no violation of ERISA with respect to (A) the filing with
  the Secretary of Labor and the Secretary of the Treasury of applicable
  reports, documents, and notices regarding the "employee benefit plans," as
  defined in Section 3(3) of ERISA, the Company Pension Plans and all other
  material employee compensation and benefit arrangements or payroll
  practices, including, without limitation, severance pay, sick leave,
  vacation pay, salary continuation for disability, consulting or other
  compensation agreements, retirement, deferred compensation, bonus, long-
  term incentive, stock option, stock purchase, hospitalization, medical
  insurance, life insurance and scholarship programs maintained by the
  Company or any of its Subsidiaries or with respect to which the Company or
  any of its Subsidiaries has any liability (all such plans, other than the
  Company Pension Plans, being hereinafter referred to as the "Company
  Employee Benefit Plans") or (B) the furnishing of such documents to the
  participants or beneficiaries of the Company Employee Benefit Plans or
  Company Pension Plans.
 
    (iv) Copies of each the Company Employee Benefit Plan and the Company
  Pension Plan, related trust (or other funding or financing arrangement),
  and all amendments have been made available to MIT, as have the most recent
  summary plan descriptions, administrative service agreements, and Form
  5500.
 
    (v) The Company Employee Benefit Plans and the Company Pension Plans have
  been maintained, in all material respects, in accordance with their terms
  and with all provisions of ERISA (including rules and regulations
  thereunder) and other applicable Federal and state law, there is no
  material liability for breaches of fiduciary duty in connection with the
  Company Employee Benefit Plans and the Company Pension Plans, and neither
  the Company nor any of its Subsidiaries or any "party in interest" or
  "disqualified person" with respect to the Company Employee Benefit Plans
  and the Company Pension Plans has engaged in a material "prohibited
  transaction" within the meaning of Section 4975 of the Code or Section 406
  of ERISA.
 
                                      A-25
<PAGE>
 
    (vi) As of the date of the Agreement, there are no material actions,
  suits or claims pending (other than routine claims for benefits) or, to the
  knowledge of the Company, threatened against, or with respect to, the
  Company Employee Benefit Plans or the Company Pension Plans or their
  assets.
 
    (vii) Neither the execution and delivery of this Agreement nor the
  consummation of the transactions contemplated hereby will (A) result in any
  payment becoming due to any employee or group of employees of the Company
  or any of its Subsidiaries; (B) increase any benefits otherwise payable
  under any Company Employee Benefit Plan or the Company Pension Plan; or (C)
  result in the acceleration of the time of payment or vesting of any such
  benefits. Except as described on Schedule 3.2(l) of the Company Disclosure
  Schedule, there are no severance agreements or employment agreements
  between the Company or any of its Subsidiaries and any employee of the
  Company or such Subsidiary. True and complete copies of all severance
  agreements and employment agreements described on Schedule 3.2(l) of the
  Company Disclosure Schedule have been provided to MIT.
 
    (viii) Except as set forth on Schedule 3.2(l)(viii) of the Company
  Disclosure Schedule, neither the Company nor any of its Subsidiaries has
  any consulting agreement or arrangement with any person involving
  compensation in excess of $100,000, except as are terminable upon one
  month's notice or less.
 
    (ix) Neither the Company nor any of its Subsidiaries nor any Company
  ERISA Affiliate contributes to, or has an obligation to contribute to, and
  has not within six years prior to the Effective Time contributed to, or had
  an obligation to contribute to, a multiemployer plan within the meaning of
  Section 3(37) of ERISA.
 
    (x) No stock or other security issued by the Company or any of its
  Subsidiaries forms or has formed a material part of the assets of any
  Company Employee Benefit Plan or Company Pension Plan.
 
    (xi) The Company and its ERISA Affiliates have materially complied with
  the requirements of Section 4980B of the Code and Parts 6 and 7 and
  Subtitle B of Title I of ERISA regarding continuation of health care
  coverage notices and provision of appropriate health care coverage under
  the Company Employee Benefit Plans.
 
    (xii) No amount has been paid by the Company or any of its ERISA
  Affiliates, and no amount is expected to be paid by the Company or any of
  its ERISA Affiliates, which would be subject to the provisions of 162(m) of
  the Code such that all or a part of such payments would not be deductible
  by the payor.
 
  (m) Labor Matters. Except as set forth on Schedule 3.2(m) of the Company
Disclosure Schedule or in the Company SEC Documents:
 
    (i) neither the Company nor any of its Subsidiaries is a party to any
  collective bargaining agreement or other current labor agreement with any
  labor union or organization, and there is no current union representation
  question involving employees of the Company or any of its Subsidiaries, nor
  does the Company or any of its Subsidiaries know of any activity or
  proceeding of any labor organization (or representative thereof) or
  employee group (or representative thereof) to organize any such employees;
 
    (ii) as of the date hereof, there is no unfair labor practice charge or
  grievance arising out of a collective bargaining agreement or other
  grievance procedure against the Company or any of its Subsidiaries pending,
  or, to the knowledge of the Company or any of its Subsidiaries, threatened,
  that has, or will have, a Material Adverse Effect on the Company;
 
    (iii) as of the date hereof, there is no complaint, lawsuit or proceeding
  in any forum by or on behalf of any present or former employee, any
  applicant for employment or any classes of the foregoing alleging breach of
  any express or implied contract of employment, any law or regulation
  governing employment or the termination thereof or other discriminatory,
  wrongful or tortious conduct in connection with the employment relationship
  against the Company or any of its Subsidiaries pending, or, to the
  knowledge of the Company or any of its Subsidiaries, threatened, that has,
  or will have, a Material Adverse Effect on the Company;
 
    (iv) there is no strike, dispute, slowdown, work stoppage or lockout
  pending, or, to the knowledge of the Company or any of its Subsidiaries,
  threatened, against or involving the Company or any of its Subsidiaries
  that has, or will have, a Material Adverse Effect on the Company;
 
                                      A-26
<PAGE>
 
    (v) The Company and each of its Subsidiaries are in compliance with all
  applicable laws respecting employment and employment practices, terms and
  conditions of employment, wages, hours of work and occupational safety and
  health, except for non-compliance that does not have, and will not have, a
  Material Adverse Effect on the Company; and
 
    (vi) as of the date hereof, there is no proceeding, claim, suit, action
  or governmental investigation pending or, to the knowledge of the Company
  or any of its Subsidiaries, threatened, in respect to which any current or
  former director, officer, employee or agent of the Company or any of its
  Subsidiaries is or may be entitled to claim indemnification from the
  Company or any of its Subsidiaries pursuant to the Certificate of
  Incorporation or Bylaws of the Company or any provision of the comparable
  charter or organizational documents of any of its Subsidiaries, as provided
  in any indemnification agreement to which the Company or any Subsidiary of
  the Company is a party or pursuant to applicable law that has, or will
  have, a Material Adverse Effect on the Company.
 
  (n) Intangible Property. The Company and its Subsidiaries possess or have
adequate rights to use all material trademarks, trade names, patents, service
marks, brand marks, brand names, computer programs, databases, industrial
designs and copyrights necessary for the operation of the businesses of each of
the Company and its Subsidiaries (collectively, the "Company Intangible
Property"), except where the failure to possess or have adequate rights to use
such properties would not have a Material Adverse Effect on the Company. All of
the Company Intangible Property is owned or licensed by the Company or its
Subsidiaries free and clear of any and all liens, claims or encumbrances,
except those that would not have a Material Adverse Effect on the Company and
neither the Company nor any such Subsidiary has forfeited or otherwise
relinquished any Company Intangible Property which forfeiture would result in a
Material Adverse Effect on the Company. To the knowledge of the Company, the
use of the Company Intangible Property by the Company or its Subsidiaries does
not, in any material respect, conflict with, infringe upon, violate or
interfere with or constitute an appropriation of any right, title, interest or
goodwill, including, without limitation, any intellectual property right,
trademark, trade name, patent, service mark, brand mark, brand name, computer
program, database, industrial design, copyright or any pending application
therefor, of any other person, and there have been no claims made, and neither
the Company nor any of its Subsidiaries has received any notice of any claim or
otherwise knows that any of the Company Intangible Property is invalid or
conflicts with the asserted rights of any other person or has not been used or
enforced or has failed to have been used or enforced in a manner, that would
result in the abandonment, cancellation or unenforceability of any of the
Company Intangible Property, except for any such conflict, infringement,
violation, interference, claim, invalidity, abandonment, cancellation or
unenforceability that would not have a Material Adverse Effect on the Company.
 
  (o) Environmental Matters. Except as disclosed on Schedule 3.2(o) of the
Company Disclosure Schedule:
 
    (i) The operations of the Company and its Subsidiaries have been
  conducted, are and, as of the Closing Date, will be, in compliance with all
  Environmental Laws, except where the failure to so comply would not have a
  Material Adverse Effect on the Company;
 
    (ii) The Company and its Subsidiaries have obtained and, until the
  Closing Date, will maintain all permits, licenses and registrations, or
  applications relating thereto, and have made and, until the Closing Date,
  will make all filings, reports and notices required under applicable
  Environmental Laws for the continued operations of their respective
  businesses, except such matters the lack or failure of which would not have
  a Material Adverse Effect on the Company;
 
    (iii) The Company and its Subsidiaries are not subject to any outstanding
  written orders issued by, or contracts with, any Governmental Entity or
  other person respecting (A) Environmental Laws, (B) Remedial Action, (C)
  any Release or threatened Release of a Hazardous Material or (D) an
  assumption of responsibility for environmental liabilities of another
  person, except such orders or contracts the compliance with which would not
  have a Material Adverse Effect on the Company;
 
    (iv) As of the date of this Agreement, the Company and its Subsidiaries
  have not received any written communication alleging, with respect to any
  such party, the violation of or liability under any Environmental Law,
  which violation or liability would have a Material Adverse Effect on the
  Company;
 
                                      A-27
<PAGE>
 
    (v) Neither the Company nor any of its Subsidiaries has any contingent
  liability in connection with the Release of any Hazardous Material into the
  indoor or outdoor environment (whether on-site or off-site) or employee or
  third party exposure to Hazardous Materials that would have a Material
  Adverse Effect on the Company;
 
    (vi) The operations of the Company or its Subsidiaries involving the
  generation, transportation, treatment, storage or disposal of hazardous or
  solid waste, as defined and regulated under 40 C.F.R. Parts 260-270 (in
  effect as of the date of this Agreement) or any applicable state
  equivalent, are in compliance with applicable Environmental Laws, except
  where the failure to so comply would not have a Material Adverse Effect on
  the Company; and
 
    (vii) To the knowledge of the Company, there is not now on or in any
  property of the Company or its Subsidiaries or any property for which the
  Company or its Subsidiaries is potentially liable any of the following: (A)
  any underground storage tanks or surface impoundments or (B) any on-site
  disposal of Hazardous Material, any of which ((A) or (B) preceding) would
  have a Material Adverse Effect on the Company.
 
    (viii) No Company Property (as hereinafter defined) is included or, to
  the knowledge of MIT, proposed for inclusion on the National Priorities
  List issued pursuant to CERCLA by the EPA or on the Comprehensive
  Environmental Response, Compensation, and Liability Information System
  database maintained by the EPA, and the Company has no knowledge that any
  Company Property has otherwise been identified in a published writing by
  the EPA as a potential CERCLA removal, remedial or response site or, to the
  knowledge of the Company, proposed for inclusion on any similar list of
  potentially contaminated sites pursuant to any other Environmental Law.
 
  (p) Properties.
 
  (i) Except as disclosed on Schedule 3.2(p) to the Company Disclosure Schedule
or as described in the Company SEC Documents, the Company or one of the
Company's Subsidiaries owns fee simple title (or a leasehold estate) to each of
the real properties used or useful in the operation of the business of the
Company and its subsidiaries (the "Company Properties") in each case (except as
provided below) free and clear of Encumbrances. The Company Properties are not
subject to any Property Restrictions, except for (A) Encumbrances and Property
Restrictions described in the Company SEC Documents or set forth in Schedule
3.2(p) to the Company Disclosure Schedule, (B) Property Restrictions imposed or
promulgated by law or any governmental body or authority with respect to real
property, including zoning regulations, provided that they do not materially
adversely affect the currently intended use of any Company Property, (C)
Encumbrances and Property Restrictions disclosed on existing title reports or
existing surveys (in either case copies of which title reports or surveys have
been delivered or made available to MIT and listed in the Company Disclosure
Schedule), and (D) mechanics', carriers', workmen's, repairmen's and
materialmen's liens and other Encumbrances, Property Restrictions and other
limitations of any kind, if any, which, individually or in the aggregate, are
not substantial in amount, do not materially detract from the value of or
materially interfere with the present use of any of the Company Properties
subject thereto or affected thereby, and do not otherwise have a Material
Adverse Effect on the Company. Except as provided in Schedule 3.2(p) to the
Company Disclosure Schedule, valid policies of title insurance have been
issued, insuring the Company's or the applicable Company Subsidiaries' fee
simple title or leasehold estate to the Company Properties in amounts at least
equal to the value of such Company Properties at the time of the issuance of
such policy, subject only to the matters disclosed above and on the Company
Disclosure Schedule, and such policies are, at the date hereof, in full force
and effect and no material claim has been made against any such policy.
 
  (ii) All properties currently under development or construction by the
Company or the Company Subsidiaries and all properties currently proposed for
acquisition, development or commencement of construction prior to the Effective
Time by the Company and the Company Subsidiaries are disclosed in the Company
SEC Documents or are listed as such on Schedule 3.2(p) to the Company
Disclosure Schedule. Copies of all executory agreements entered into by the
Company or any Company Subsidiary relating to the
 
                                      A-28
<PAGE>
 
development or construction of industrial or other real estate properties
(other than agreements for architectural, engineering, planning, accounting,
legal or other professional services, or construction agreements for material
or labor) have previously been delivered or made available to MIT.
 
  (q) Insurance. Schedule 3.2(q) of the Company Disclosure Statement sets forth
an insurance schedule of the Company's and each of its Subsidiaries' directors'
and officers' liability insurance. The Company maintains insurance in such
amounts and covering such risks as are in accordance with normal industry
practice for companies engaged in businesses similar to those of the Company
and each of its Subsidiaries (taking into account the cost and availability of
such insurance).
 
  (r) Opinion of Financial Advisor. The Board of Directors of the Company has
received the oral opinion of Merrill Lynch & Co. addressed to such Board that,
as of the date hereof, the Merger Consideration to be received by the holders
of MIT Common Stock in accordance with Section 2.1 is fair from a financial
point of view to the holders of Company Common Stock. A copy of the written
opinion of Merrill Lynch & Co. will be provided to the Company promptly after
it has been received from Merrill Lynch & Co.
   
  (s) Vote Required. The affirmative vote of at least two-thirds of the
outstanding shares of Company Common Stock entitled to vote with respect to the
approval of this Agreement and the transactions contemplated hereby, including
the issuance of Company Common Stock in the Merger, is the only vote of the
holders of any class or series of the Company's shares of beneficial interest
necessary to approve this Agreement and the transactions contemplated hereby.
    
  (t) Beneficial Ownership of MIT Common Stock and MIT Preferred Stock. As of
the date hereof, neither the Company nor its Subsidiaries beneficially owns any
of the outstanding shares of MIT Common Stock or MIT Preferred Stock.
 
  (u) Brokers. Except for the fees and expenses payable to Merrill Lynch & Co.,
which fees are reflected in its engagement letter with the Company (a copy of
which has been delivered to MIT), no broker, investment banker or other person
is entitled to any broker's, finder's or other similar fee or commission in
connection with the transactions contemplated by this Agreement based upon
arrangements made by or on behalf of the Company.
 
  (v) Investment Company Act of 1940. Neither the Company nor any of its
Subsidiaries is, or at the Effective Time will be, required to be registered as
an investment company under the Investment Company Act.
 
  (w) Contracts.
 
  (i) Neither the Company nor any Company Subsidiary has received a written
notice that the Company or any Company Subsidiary is in violation of or in
default under (nor to the knowledge of the Company does there exist any
condition which upon the passage of time or the giving of notice or both would
cause such a violation of or default under) any material loan or credit
agreement, note, bond, mortgage, indenture, lease, permit, concession,
franchise, license or any other material contract, agreement, arrangement or
understanding, to which it is a party or by which it or any of its properties
or assets is bound, except as set forth in Schedule 3.2(w), nor does such a
violation or default exist, except in each case to the extent that such
violation or default, individually or in the aggregate, would not have a
Company Material Adverse Effect.
 
  (ii) Neither the Company nor any of its Subsidiaries is a party to any
interest rate cap, interest rate collar, interest rate swap, currency hedging
transaction, or any other agreement relating to a similar transaction, which,
individually or in the aggregate, would be reasonably likely to have a Company
Material Adverse Effect.
 
  (iii) There exists no agreement entered into by the Company or any of the
Company Subsidiaries providing for the sale of, or option to sell, any of the
Company Properties or the purchase of, or option to purchase, any real estate
which are currently in effect, the consummation or performance of which would
be reasonably likely to have a Company Material Adverse Effect.
 
                                      A-29
<PAGE>
 
  (iv) Neither the Company nor any of the Company Subsidiaries has any
continuing contractual liability (A) for indemnification or otherwise under any
agreement relating to the sale of real estate previously owned, whether
directly or indirectly, by the Company or any of the Company Subsidiaries,
except for standard indemnification provisions entered into in the normal
course of business, (B) to pay any additional purchase price for any of the
Company Properties, or (C) to make any prorations or adjustments to prorations
involving an amount in excess of $50,000 (other than real estate taxes) that
may previously have been made with respect to any property currently or
formerly owned by the Company, in each case, except as, individually or in the
aggregate, would not have a Company Material Adverse Effect.
 
  (v) There are no material outstanding contractual obligations of the Company
or any the Company Subsidiaries to provide any funds to, or make any investment
(in the form of a loan, capital contribution or otherwise) in, any of the
Company Subsidiaries or any other Person, in each case, except as, individually
or in the aggregate, would not have a Company Material Adverse Effect.
 
                                   ARTICLE IV
          Covenants Relating to Conduct of Business Pending the Merger
 
  4.1 Conduct of Business by MIT and the Company Pending the Merger. Prior to
the Effective Time, (i) MIT agrees as to itself and its Subsidiaries that
(except as required by the terms of the organizational documents of any
Subsidiary limited partnership listed on Schedule 3.1(a) to the MIT Disclosure
Schedule, as described on Schedule 4.1 to the MIT Disclosure Schedule or as
expressly contemplated or permitted by this Agreement, or to the extent that
the Company shall otherwise consent in writing, which consent shall not be
unreasonably withheld) and (ii) the Company agrees as to itself and its
Subsidiaries that (except as described on Schedule 4.1 to the Company
Disclosure Schedule or as expressly contemplated or permitted by this
Agreement, or to the extent that MIT shall otherwise consent in writing, which
consent shall not be unreasonably withheld) (for purposes of this Section 4.1
and as used elsewhere in this Agreement, MIT and the Company each being a
"Party"):
 
  (a) Ordinary Course. Each Party and its Subsidiaries shall carry on its
businesses in the usual, regular and ordinary course in substantially the same
manner as heretofore conducted and shall use all commercially reasonable
efforts to preserve intact its present business organizations, keep available
the services of its current officers and employees, subject in the case of MIT
to Section 5.9, and endeavor to preserve its relationships with customers,
suppliers and others having business dealings with it to the end that its
goodwill and ongoing business shall not be impaired in any material respect at
the Effective Time. Each party will promptly notify the other of any material
emergency or Material Adverse Change or of any material litigation or
governmental complaints, investigations or hearings.
 
  (b) Dividends; Changes in Stock. Except as contemplated by this Agreement and
for transactions solely among a Party and its Subsidiaries, a Party shall not
and it shall not permit any of its Subsidiaries to: (i) declare or pay any
dividends on or make other distributions in respect of any of its shares of
beneficial interest, capital stock or partnership interests, except (A) in the
case of MIT, for (1) the declaration and payment of regular quarterly cash
dividends not in excess of $.33 per share of MIT Common Stock with usual record
and payment dates, regular quarterly cash dividends on the MIT Series B
Preferred Stock and the MIT Series D Preferred Stock in accordance with their
respective terms, (2) the payment of any distributions to the partners of any
limited partnerships that are Subsidiaries of MIT made in accordance with the
requirements of the existing organizational documents of such Subsidiary
limited partnerships and (3) the payment of regular quarterly cash dividends to
stockholders of any corporations that are preferred stock Subsidiaries of MIT
and (B) in the case of the Company, for (1) the declaration and payment of
regular quarterly cash dividends not in excess of $.375 per share of Company
Common Stock with usual record and payment dates, regular dividends on the
Company Series A Preferred Shares, the Company Series B Preferred Shares, the
Company Series C Preferred Stock, and the Company Series D Preferred Shares or
any other class of preferred shares of beneficial interest issued subsequent to
the date hereof in accordance with this Agreement in each case in accordance
with
 
                                      A-30
<PAGE>
 
their respective terms, (2) the payment of any distributions to the partners of
any limited partnerships that are Subsidiaries of the Company made in
accordance with the requirements of the existing organizational documents of
such Subsidiary limited partnerships and (3) the payment of regular quarterly
cash dividends to shareholders of any corporations that are preferred stock
Subsidiaries of the Company; (ii) split, combine or reclassify any of its
shares of beneficial interest or capital stock or issue or authorize or propose
the issuance of any other securities in respect of, in lieu of or in
substitution for shares of such Party's beneficial interest or capital stock;
or (iii) repurchase, redeem or otherwise acquire, or permit any of its
Subsidiaries to purchase, redeem or otherwise acquire, any shares of its
beneficial interest or capital stock, except (x) as required by the terms of
its or any of its Subsidiaries' securities outstanding on the date hereof, (y)
as contemplated by any existing employee benefit plan and (z) that the
outstanding shares of MIT Series B Preferred Stock will be redeemed for cash or
converted into MIT Common Stock in accordance with the terms of the MIT Series
B Preferred Stock and Section 5.22. MIT and the Company shall coordinate with
each other regarding the payment of dividends with respect to MIT Common Stock
and Company Common Stock after the date hereof, it being the intention of the
Parties that (a) MIT shall pay whatever preclosing dividends shall be necessary
to avoid (i) jeopardizing its status as a "real estate investment trust" under
the Code and (ii) having positive real estate investment trust taxable income
for the taxable year ending at the Effective Time (provided that the foregoing
shall not be deemed to limit the amount of dividends that are otherwise payable
by MIT or the Company under the terms of this Agreement), (b) the stockholders
of MIT and the Company shall be treated fairly in order to avoid any "windfall"
preclosing dividends, and (c) except as may be necessary to accomplish the
foregoing, holders of MIT Common Stock and Company Common Stock shall not
receive two dividends, or fail to receive one dividend, for any single calendar
quarter with respect to their shares of MIT Common Stock or Company Common
Stock or any shares of Company Common Stock that any such holder receives in
exchange for shares of MIT Common Stock in the Merger.
 
  (c) Issuance of Securities. A Party shall not, and it shall not permit any of
its Subsidiaries to, issue, deliver or sell, or authorize or propose to issue,
deliver or sell, any shares of its beneficial interest or capital stock of any
class, any Voting Debt or other voting securities or any securities convertible
into, or any rights, warrants or options to acquire, any such shares, Voting
Debt, other voting securities or convertible securities, other than: (i) in the
case of MIT, (A) the issuance of MIT Common Stock upon the exercise of stock
options granted under the MIT Stock Plan, MIT Warrants that are outstanding on
the date hereof and stock options issued to directors of MIT in accordance with
the provisions of the MIT Stock Plan after the date hereof, or in satisfaction
of stock grants or other stock based awards made prior to the date hereof
pursuant to the MIT Stock Plan, (B) issuances of MIT Common Stock by MIT to
partners of limited partnership Subsidiaries of MIT in accordance with the
requirements of the existing organizational documents of such Subsidiaries, (C)
issuances of MIT Stock Options and grants of MIT Common Stock to directors of
MIT in accordance with the provisions of the MIT Stock Plan, (D) issuances by a
wholly owned Subsidiary of MIT of such Subsidiary's capital stock or shares of
beneficial interest to its parent, and (E) the issuance of MIT Common Stock
upon the conversion of the MIT Series B Preferred Stock in accordance with its
terms; and (ii) in the case of the Company (A) the issuance of Company Common
Stock upon the exercise of stock options granted under the Company Stock Plan
that are outstanding on the date hereof, or in satisfaction of stock grants or
stock based awards made prior to the date hereof pursuant to the Company Stock
Plan, (B) issuances by a wholly owned subsidiary of the Company of such
Subsidiary's capital stock or shares of beneficial interest to its parent, (C)
issuance of Company Common Stock by the Company to partners of limited
partnership Subsidiaries of the Company in accordance with requirements of the
existing organizational documents of such Subsidiaries, (D) issuance of Company
Common Stock by the Company to holders of Series B Convertible Preferred Stock
in accordance with the terms thereof, and (E) other issuances of shares of
beneficial interest of the Company at the fair market value of such shares of
beneficial interest, as determined by the Company's Board of Trustees in good
faith. MIT shall use its reasonable best efforts to limit any extension of the
period during which the warrants issued and outstanding under that certain
Warrant Agreement dated as of February 16, 1996 (the "Warrant Agreement"), by
and between MIT and First Chicago Trust Company of New York (the "Public MIT
Warrants") and the Warrant dated as of February 23, 1996, originally issued to
USAA Real Estate Company (collectively with the Public MIT Warrants, the "MIT
Warrants") may be exercised.
 
                                      A-31
<PAGE>
 
  (d) Governing Documents. Except as contemplated hereby or in connection
herewith, no Party shall amend or propose to amend its charter or bylaws.
 
  (e) No Acquisitions. MIT shall not, and it shall not permit any of its
Subsidiaries to, acquire or agree to acquire by merging or consolidating with,
or by purchasing any equity interest in or any of the assets of, or by any
other manner, any business or any corporation, partnership, association or
other business organization or division thereof, other than the acquisitions
described on Schedule 4.1 of the MIT Disclosure Schedule.
 
  (f) No Dispositions. Other than: (i) as may be necessary or required by law
to consummate the transactions contemplated hereby or (ii) as described on
Schedule 4.1 of the MIT Disclosure Schedule, MIT shall not, and it shall not
permit any of its Subsidiaries to, sell or otherwise dispose of, or agree to
sell or otherwise dispose of, any of its material assets.
 
  (g) No Dissolution, Etc. Except as otherwise permitted or contemplated by
this Agreement, neither Party shall authorize, recommend, propose or announce
an intention to adopt a plan of complete or partial liquidation or dissolution
of such Party or any of its Significant Subsidiaries.
 
  (h) Accounting. Neither Party shall, nor shall either Party permit any of its
Subsidiaries to, make any changes in their accounting methods which would be
required to be disclosed under the rules and regulations of the SEC, except as
required by law, rule, regulation or GAAP.
 
  (i) Affiliate Transactions. Except for any transaction contemplated by this
Agreement, neither Party shall, nor shall either Party permit any of its
Subsidiaries to, enter into any agreement or arrangement with any of their
respective Affiliates (as such term is defined in Rule 405 under the Securities
Act, an "Affiliate"), other than with wholly owned Subsidiaries of such Party,
on terms less favorable to such Party or such Subsidiary, as the case may be,
than could be reasonably expected to have been obtained with an unaffiliated
third party on an arm's-length basis.
 
  (j) Insurance. Each Party shall, and shall cause its Subsidiaries to, use
commercially reasonable efforts to maintain with financially responsible
insurance companies insurance in such amounts and against such risks and losses
as are customary for companies engaged in their respective businesses.
 
  (k) Tax Matters. Neither Party shall (i) make or rescind any material express
or deemed election relating to Taxes (except as required by law or necessary to
preserve such Party's status as a REIT or the status of any of such Party's
Subsidiaries as a partnership for federal income tax purposes or as a qualified
REIT subsidiary under Section 856(i) of the Code) unless it is reasonably
expected that such action will not materially and adversely affect such Party,
including elections for any and all joint ventures, partnerships, limited
liability companies or other investments where MIT or the Company, as
appropriate, has the capacity to make such binding election, (ii) settle or
compromise any material claim, action, suit, litigation, proceeding,
arbitration, investigation, audit or controversy relating to Taxes, except
where such settlement or compromise will not materially and adversely affect
such Party, or (iii) change in any material respect any of its methods of
reporting income or deductions for federal income tax purposes from those
employed in the preparation of its federal income Tax Returns that have been
filed for prior taxable years, except as may be required by applicable law or
except for changes that are reasonably expected not to materially and adversely
affect such Party.
 
  (l) Certain Employee Matters. Except pursuant to Section 5.9, a Party shall
not and it shall not permit any of its Subsidiaries to: (i) grant any increases
in the compensation of any of its directors, trustees, officers or employees,
except increases to employees who are not directors, trustees or officers made
in the ordinary course of business and in accordance with past practice;
provided that payments of annual bonuses to officers and employees (x)
consistent with past practices, (y) as previously approved by the Board of
Directors or Board of Trustees of such Party and (z) up to the maximum amount,
including any discretionary component, permitted under such Party's existing
bonus plans shall not be deemed an increase in compensation; (ii) pay or
 
                                      A-32
<PAGE>
 
agree to pay to any director, trustees, officer or employee, whether past or
present, any material pension, retirement allowance or other employee benefit
not required or contemplated by any of the existing MIT Employee Benefit Plans
or MIT Pension Plans or the Company Employee Benefit Plans or the Company
Pension Plans, as applicable, in each case as in effect on the date hereof;
(iii) enter into any new, or amend any existing, material employment or
severance or termination agreement with any director, officer or employee; or
(iv) become obligated under any new MIT Employee Benefit Plan or MIT Pension
Plan, or any new Company Employee Benefit Plan or Company Pension Plan, as
applicable, which was not in existence or approved by the Board of Directors of
MIT or the Board of Trustees of the Company, as applicable, prior to the date
hereof, or amend any such plan or arrangement in existence on the date hereof
if such amendment would have the effect of materially enhancing any benefits
thereunder.
 
  (m) Indebtedness. MIT shall not, nor shall it permit any of its Subsidiaries
to, (i) incur any indebtedness for borrowed money (except (A) to finance any
transactions or other expenditures permitted by this Agreement (including those
referred to in Section 4.1(e)) and regular borrowings under credit facilities
made in the ordinary course of MIT's cash management practices, (B)
refinancings of existing debt and (C) immaterial borrowings that, in each such
case, permit prepayment of such debt without penalty) or guarantee any such
indebtedness or issue or sell any debt securities or warrants or rights to
acquire any debt securities of MIT or any of its Subsidiaries or guarantee any
debt securities of others or (ii) except in the ordinary course of business,
create any material mortgages, liens, security interests or similar other
encumbrances on the property of MIT or any of its Subsidiaries in connection
with any indebtedness thereof.
 
  (n) Agreements. No Party shall, nor shall any Party permit any of its
Subsidiaries to, agree in writing or otherwise to take any action inconsistent
with any of the foregoing.
 
  4.2 No Solicitation by MIT. Prior to the Effective Time, MIT agrees that:
 
    (a) neither it nor any of its Subsidiaries shall initiate, solicit or
  encourage, directly or indirectly, any inquiries or the making or
  implementation of any proposal or offer (including, without limitation, any
  proposal or offer to its stockholders) with respect to a merger,
  acquisition, tender offer, exchange offer, consolidation, sale of assets or
  similar transaction involving any purchase of 10% or more of the assets or
  any equity securities of MIT or any of the MIT Subsidiaries, other than the
  transactions contemplated by this Agreement (any such proposal or offer
  being hereinafter referred to as a "MIT Acquisition Proposal") or engage in
  any negotiations concerning or provide any confidential information or data
  to, or have any discussions with, any person relating to a MIT Acquisition
  Proposal, or otherwise facilitate any effort or attempt to make or
  implement a MIT Acquisition Proposal;
 
    (b) it will direct, and will use its best efforts to cause, its officers,
  directors, employees, agents or financial advisors not to engage in any of
  the activities in Section 4.2(a), except to the extent expressly permitted
  thereby;
 
    (c) it will immediately cease and cause to be terminated any existing
  activities, discussions or negotiations with any parties conducted
  heretofore with respect to any of the foregoing and will take the necessary
  steps to inform the individuals or entities referred to in Section 4.2(b)
  of the obligations undertaken in this Section 4.2; and
 
    (d) it will notify the Company promptly if MIT receives any such
  inquiries or proposals, or any requests for such information, or if any
  such negotiations or discussions are sought to be initiated or continued
  with it;
 
provided, however, that nothing contained in this Section 4.2 shall prohibit
the Board of Directors of MIT from (i) furnishing information to, or entering
into discussions or negotiations with, any person or entity that makes an
unsolicited MIT Acquisition Proposal, if, and only to the extent that, (A) the
Board of Directors of MIT determines in good faith, following consultation with
and after considering the advice of its legal and financial advisors, that such
action could reasonably be expected to result in a MIT Superior Proposal (as
hereinafter defined), (B) prior to furnishing such information to, or entering
into discussions or negotiations with, such
 
                                      A-33
<PAGE>
 
person or entity, MIT provides written notice to the Company to the effect that
it is furnishing information to, or entering into discussions with, such person
or entity (provided, however, that MIT shall not be required to identify such
person or group or disclose such terms or conditions to the Company until the
beginning of the five business day period referred to in Section 7.1(d), if the
Board of Directors of MIT determines, in good faith following consultation with
and after considering the advice of its legal and financial advisors, that such
identification or disclosure prior to such time would be reasonably likely to
materially impair such discussions or negotiations), and (C) subject to any
confidentiality agreement (which agreement was executed by MIT upon approval by
the MIT Board of Directors following consultation with and after considering
the advice of its legal and financial advisors) with such person or entity, MIT
keeps the Company informed of the status (not the terms) of any such
discussions or negotiations, and (ii) to the extent applicable, complying with
Rule 14e-2 or Rule 14d-9 promulgated under the Exchange Act with regard to a
MIT Acquisition Proposal. Nothing in this Section 4.2 shall (x) permit MIT to
enter into an agreement with respect to a MIT Acquisition Proposal during the
term of this Agreement (it being agreed that during the term of this Agreement,
MIT shall not enter into an agreement with any person that provides for, or in
any way facilitates, a MIT Acquisition Proposal (other than a confidentiality
agreement in customary form executed as provided above) or (y) affect any other
obligation of MIT under this Agreement; provided, however, that the Board of
Directors of MIT may approve and recommend a MIT Superior Proposal and, in
connection therewith, withdraw or modify its approval or recommendation of this
Agreement and the Merger. As used herein, a "MIT Superior Proposal" means a
bona fide MIT Acquisition Proposal made by a third party which a majority of
the members of the Board of Directors of MIT determines in good faith to be
more favorable to MIT's stockholders from a financial point of view than the
Merger (based on advice from MIT's independent financial advisor that the value
of the consideration provided for in such proposal is superior to the value of
the consideration provided for in the Merger), for which financing is then
committed or which, in the good faith reasonable judgment of the Board of
Directors of MIT, based on advice from MIT's independent financial advisor, is
reasonably capable of being financed by such third party, and for which the
Board of Directors of MIT determines, in its good faith reasonable judgment, is
reasonably capable of being consummated without undue delay.
 
                                   ARTICLE V
 
                             Additional Agreements
 
  5.1 Preparation of S-4 and the Joint Proxy Statement. The Company and MIT
shall promptly prepare and file with the SEC the Joint Proxy Statement and the
Company and MIT shall prepare, and the Company will file with the SEC, the S-4
in which the Joint Proxy Statement will be included as a prospectus in each
case in form and substance reasonably satisfactory to each of MIT and the
Company. Each of the Company and MIT shall use its reasonable best efforts to
have the S-4 declared effective under the Securities Act as promptly as
practicable after such filing and to keep such S-4 effective as long as
necessary to consummate the Merger. Each of the Company and MIT shall agree to
date the Joint Proxy Statement as of the approximate date of mailing to the
applicable shareholders, and each shall use its reasonable best efforts to
cause the Joint Proxy Statement to be mailed to their respective stockholders
at the earliest practicable date. The Company shall use its reasonable best
efforts to obtain all necessary state securities laws or "blue sky" permits,
approvals and registrations in connection with the issuance of Company Common
Stock and Company Cumulative Redeemable Preferred Stock in the Merger and upon
the exercise of MIT Stock Options and MIT Warrants and each of the Company and
MIT shall furnish all information concerning the Company and MIT and its
respective stockholders as may be reasonably requested in connection with
obtaining such permits, approvals and registrations.
 
  5.2 Letter of MIT's Accountants. MIT shall use its reasonable best efforts to
cause to be delivered to the Company a letter of Arthur Andersen LLP, MIT's
independent public accountants, dated a date within two business days before
the date on which the S-4 shall become effective and addressed to the Company
and MIT, in form and substance reasonably satisfactory to the Company and
customary in scope and substance for letters delivered by independent public
accountants in connection with registration statements similar to the S-4.
 
                                      A-34
<PAGE>
 
  5.3 Letter of the Company's Accountants. The Company shall use its reasonable
best efforts to cause to be delivered to MIT a letter of Arthur Andersen LLP,
the Company's independent public accountants, dated a date within two business
days before the date on which the S-4 shall become effective and addressed to
the Company and MIT, in form and substance reasonably satisfactory to MIT and
customary in scope and substance for letters delivered by independent public
accountants in connection with registration statements similar to the S-4.
 
  5.4 Access to Information. Upon reasonable notice, the Company and MIT, as
the case may be, shall (and shall cause each of their respective Subsidiaries
to) afford to the officers, employees, accountants, counsel and other
representatives of the others, access, during normal business hours during the
period prior to the Effective Time, to all its properties, books, contracts,
commitments and records, as well as to its officers and employees (provided
that neither the Company nor MIT shall contact any officer or employee of the
other party without first inquiring of the other party as to whether the
officer and employee to be contacted has been advised of the pendency of the
transactions contemplated by this Agreement) and, during such period, each of
the Company and MIT, as the case may be, shall (and shall cause each of their
respective Subsidiaries to) furnish promptly to the others (a) a copy of each
report, schedule, registration statement and other document filed or received
by it during such period pursuant to SEC requirements and (b) all other
information concerning its business, properties and personnel as such other
party may reasonably request. Each of the Company and MIT agrees that it will
not, and will cause its respective representatives not to, use any information
obtained pursuant to this Section 5.4 for any purpose unrelated to the
consummation of the transactions contemplated by this Agreement. The letter
agreement dated as of October 5, 1998 between the Company and MIT (the
"Confidentiality Agreement") shall apply with respect to information furnished
thereunder or hereunder and any other activities contemplated thereby.
 
  5.5 Stockholders Meetings. MIT shall call a meeting of its stockholders to be
held as promptly as practicable after the date hereof for the purpose of voting
upon this Agreement and the Merger. The Company shall call a meeting of its
stockholders to be held as promptly as practicable after the date hereof for
the purpose of voting upon this Agreement and the Merger (including the
Company's issuance of Company Common Stock and the assumption of the MIT Stock
Plan and any MIT Stock Options). The Board of Trustees of the Company and,
subject to the provisions of Section 4.2, the Board of Directors of MIT will
recommend to its stockholders approval of such matters and not rescind such
recommendation and shall use its reasonable best efforts to obtain approval and
adoption of this Agreement and the Merger (including, in the case of the
Company, the issuance of Company Common Stock and the assumption of the MIT
Stock Plan and any MIT Stock Options) by its stockholders. Each of MIT and the
Company shall use all commercially reasonable efforts to hold such meetings on
the same date and as soon as practicable after the date upon which the S-4
becomes effective.
 
  5.6 Approvals; Best Efforts.
 
  (a) Each party hereto shall cooperate and use its reasonable best efforts to
promptly prepare and file all necessary documentation to effect all necessary
applications, notices, petitions, filings and other documents, and use all
commercially reasonable efforts to obtain (and will cooperate with each other
in obtaining) any consent, acquiescence, authorization, order or approval of,
or any exemption or nonopposition by, any Governmental Entity required to be
obtained or made by the Company or MIT or any of their respective Subsidiaries
in connection with the Merger or the taking of any action contemplated thereby
or by this Agreement.
 
  (b) Subject to the terms and conditions herein provided, the Company and MIT
shall: (i) use its reasonable best efforts to cooperate with one another in (A)
determining which filings are required to be made prior to the Effective Time
with, and which consents, approvals, permits or authorizations are required to
be obtained prior to the Effective Time from, governmental or regulatory
authorities of the United States, the several states and foreign jurisdictions
and any third parties in connection with the execution and delivery of this
Agreement, and the consummation of the transactions contemplated by such
agreements and (B) timely making all such filings and timely seeking all such
consents, approvals, permits and authorizations, (ii) use its reasonable best
efforts
 
                                      A-35
<PAGE>
 
to obtain in writing any consents required from third parties to effectuate the
Merger, such consents to be in form reasonably satisfactory to the Company and
MIT, and (iii) use its reasonable best efforts to take, or cause to be taken,
all other action and do, or cause to be done, all other things necessary,
proper or appropriate to consummate and make effective the transactions
contemplated by this Agreement. Nothing in this Section 5.6(b) shall be deemed
to require a party to make any payments to any third party in connection with
obtaining any such consents. If, at any time, after the Effective Time, any
further action is necessary or desirable to carry out the purpose of this
Agreement, the proper officers, trustees and directors of the Company shall
take all such necessary action.
 
  5.7 Agreements of Rule 145 Affiliates. Prior to the Effective Time, MIT shall
cause to be prepared and delivered to the Company a list identifying all
persons who, at the time of the MIT stockholders meeting, may be deemed to be
"affiliates" of MIT, as that term is used in paragraphs (c) and (d) of Rule 145
under the Securities Act (the "Rule 145 Affiliates"). MIT shall use its
reasonable best efforts to cause each person who is identified as a Rule 145
Affiliate in such MIT list to deliver to the Company, at or prior to the
Effective Time, a written agreement, in substantially the form attached as
Exhibit C hereto, that such Rule 145 Affiliate will not sell, pledge, transfer
or otherwise dispose of any shares of Company Common Stock or Company
Cumulative Redeemable Preferred Stock issued to such Rule 145 Affiliate
pursuant to the Merger, except pursuant to an effective registration statement
or in compliance with Rule 145 or an exemption from the registration
requirements of the Securities Act. MIT and the Rule 145 Affiliates shall be
relieved of this obligation under the foregoing provisions of this Section 5.7
and such written agreements if, and to the extent, such Rule 145 is amended not
to require such written agreements or any of the covenants contained therein.
 
  5.8 Authorization for Shares and Stock Exchange Listing. Prior to the
Effective Time, the Company shall have taken all action necessary to permit the
Company to issue the number of shares of Company Common Stock and Company
Cumulative Redeemable Preferred Stock, if any, required to be issued pursuant
to Section 2.1. The Company shall use its reasonable best efforts to cause (a)
the shares of Company Common Stock and Company Cumulative Redeemable Preferred
Stock to be issued in the Merger, (b) the shares of Company Common Stock to be
reserved for issuance upon exercise of MIT Stock Options and MIT Warrants and
issuances under the MIT Stock Plan to be approved for listing on the Exchange
and (c) the Public MIT Warrants to be approved for listing on the AMEX, subject
to official notice of issuance, prior to the Closing Date.
   
  5.9 Employee Matters. (a) The Company and MIT agree that MIT shall terminate
the employment of all employees of MIT immediately prior to the Effective Time
and the Company and MIT agree that such terminations shall be deemed to have
occurred following a change of control for the purposes of any applicable
employment or severance agreements or severance plans.     
   
  (b) After the Effective Time, the Surviving Entity shall provide (or shall
continue to provide) coverage under the Consolidated Omnibus Budget
Reconciliation Act of 1985, as amended ("COBRA"), to all former MIT employees
who constitute qualified beneficiaries under COBRA and their eligible
dependents in accordance with the requirements of COBRA.     
   
  (c) In the event the Surviving Entity hires any former employee of MIT or its
Subsidiaries on or after the Effective Time, the Surviving Entity shall
determine the terms and conditions of such employment, provided that the
Surviving Entity will provide such employees with the same benefits that are
provided to similarly situated employees of the Company and its Subsidiaries.
    
  (d) At the Effective Time, the Surviving Entity shall assume and perform each
of the severance agreements described on Schedule 3.1(l) to the MIT Disclosure
Schedule in the same manner and to the same extent that MIT would be required
to perform such agreements if no Merger had been consummated.
 
  5.10 Stock Options. (a) MIT shall request that each MIT employee and director
that holds any MIT Stock Option take all actions necessary to cause,
immediately prior to the Effective Time, (i) each outstanding
 
                                      A-36
<PAGE>
 
option to purchase MIT Common Stock and any stock appreciation rights related
thereto that have been granted pursuant to the MIT Stock Plan (each a "MIT
Stock Option") to be canceled, and in consideration of such cancellation, MIT
shall pay to each such holder of MIT Stock Options an amount in respect thereof
equal to the product of (A) the excess, if any, of the closing price of the MIT
Common Stock on the Exchange on the Trading Day immediately prior to the
Effective Time over the exercise price per share of such MIT Stock Option and
(B) the number of shares of MIT Common Stock subject thereto.
 
  (b) At the Effective Time, each MIT Stock Option shall become,
notwithstanding anything in the MIT Stock Plan or any agreement governing MIT
Stock Options to the contrary, fully exercisable and vested as of the Effective
Time and shall remain outstanding and be assumed by the Surviving Entity. Each
such option shall be deemed to constitute an option to acquire, on the same
terms and conditions as were applicable under such MIT Stock Option, a number
of shares of Company Common Stock equal to the number of shares of MIT Common
Stock purchasable pursuant to such MIT Stock Option, multiplied by the
Conversion Number (plus the amount of Cash Consideration, if any, payable with
respect to the number of shares of MIT Common Stock issuable pursuant to such
MIT Stock Option immediately prior to the Effective Time), at a price per share
equal to the per-share exercise price for the shares of MIT Common Stock
purchasable pursuant to such MIT Stock Option divided by the Conversion Number;
provided, however, that in the case of any option to which Section 421 of the
Code applies by reason of its qualification under any of Sections 422 through
424 of the Code, the option price, the number of shares purchasable pursuant to
such option and the terms and conditions of exercise of such option shall be
determined in order to comply with Section 424(a) of the Code; and provided
further, that, unless otherwise provided in the applicable MIT Stock Plan or
MIT Stock Option, the number of shares of Company Common Stock that may be
purchased upon exercise of such MIT Stock Option shall not include any
fractional share and, upon exercise of such MIT Stock Option, a cash payment
shall be made for any fractional share based upon the closing price of a share
of Company Common Stock on the Exchange on the trading day immediately
preceding the date of exercise. Notwithstanding the terms of any MIT Stock
Option or the MIT Stock Plan, each MIT Stock Option shall be exercisable, and
shall not expire or otherwise terminate, until the earlier to occur of (i) the
fifth anniversary of the Closing Date and (ii) the date on which such MIT Stock
Option would otherwise expire if it were to remain outstanding for the longest
period of time permitted by the agreement governing such MIT Stock Option
without regard to any termination of employment provisions therein.
 
  (c) The Company shall take all action necessary to reserve for issuance a
sufficient number of shares of Company Common Stock for delivery upon exercise
of the MIT Stock Options assumed in accordance with this Section 5.10. At or
prior to the Effective Time, the Company shall take all action necessary to
ensure that the exercise of any MIT Stock Options outstanding at the Effective
Time has been appropriately registered with the SEC on a registration statement
on Form S-8 (or any successor form) or another appropriate form with respect to
the shares of Company Common Stock subject to any such MIT Stock Options and
shall use its reasonable best efforts to maintain the effectiveness of such
registration statement or registration statements (and maintain the current
status of the prospectus or prospectuses contained therein) for so long as MIT
Stock Options remain outstanding.
 
  5.11 MIT Warrants.
 
  (a) Subject to the terms of their respective governing instruments, each MIT
Warrant issued and outstanding at the Effective Time shall remain outstanding
following the Effective Time. At the Effective Time, the Warrant Agreement and
each outstanding MIT Warrant shall be assumed by the Surviving Entity. Each
such MIT Warrant shall be deemed to constitute a warrant to acquire, on the
same terms and conditions as were applicable under such MIT Warrant, a number
of shares of Company Common Stock equal to the number of shares of MIT Common
Stock, purchasable pursuant to such MIT Warrant multiplied by the Conversion
Number (plus the amount of Cash Consideration, if any, payable with respect to
the number of shares of MIT Common Stock issuable upon the exercise of such MIT
Warrant immediately prior to the Effective Time), at a price per share equal to
the per-share exercise price for the shares of MIT Common Stock purchasable
pursuant
 
                                      A-37
<PAGE>
 
to such MIT Warrant divided by the Conversion Number. Any fractional interests
shall be rounded up to one share of Company Common Stock (with all fractional
interests to which a holder would otherwise be entitled being aggregated before
any such rounding). The Company shall take all action necessary to reserve for
issuance a sufficient number of shares of Company Common Stock for delivery
upon exercise of the MIT Warrants assumed in accordance with this Section 5.11.
 
  (b) Prior to the Effective Time, the Company shall file with the SEC a
registration statement on Form S-3 (or any successor form) or another
appropriate form with respect to the exercise of the Public MIT Warrants and
shall obtain the effectiveness of such registration statement at or prior to
the Closing Date. The Company shall maintain the effectiveness of such
registration statement (and maintain the current status of the prospectus or
prospectuses contained therein) through February 23, 1999 or such later date
through which the Public MIT Warrants shall remain exercisable.
 
  5.12 Indemnification; Directors' and Officers' Insurance.
 
  (a) From and after the Effective Time, the Surviving Entity shall provide
exculpation and indemnification for each person who is now or has been at any
time prior to the date hereof or who becomes prior to the Effective Time, an
officer or director of MIT or any MIT Subsidiary (the "MIT Indemnified
Parties") that is the same as the exculpation and indemnification provided to
the MIT Indemnified Parties by MIT (including advancement of expenses, if so
provided) immediately prior to the Effective Time in its charter and/or bylaws,
in any separate indemnification agreements between MIT and its directors or
officers or in any other MIT Employee Benefit Plan or MIT Pension Plan as in
effect at the close of business on the date hereof; provided, that such
exculpation and indemnification covers actions or omissions on or prior to the
Effective Time, including, without limitation, all transactions contemplated by
this Agreement. The Company shall obtain and maintain in effect at the
Effective Time and continuing until the sixth anniversary thereof "run-off"
directors and officers liability insurance with a coverage amount and other
terms and conditions no less favorable to the MIT Indemnified Parties than
under MIT's current directors and officers liability insurance policy covering
the directors and officers of MIT with respect to their service as such prior
to the Effective Time. The premium for such policy shall be paid in full at the
Effective Time.
 
  (b) The provisions of this Section 5.12 are intended to be for the benefit
of, and shall be enforceable by, each MIT Indemnified Party, his or her heirs
and his or her personal representatives and shall be binding on all successors
and assigns of the Company and MIT. The Company agrees to pay all costs and
expenses (including fees and expenses of counsel) that may be incurred by any
MIT Indemnified Party or his or her heirs or his or her personal
representatives in successfully enforcing the indemnity or other obligations of
Acquiror under this Section 5.12. The provisions of this Section 5.12 shall
survive the Merger and are in addition to any other rights to which a MIT
Indemnified Party may be entitled.
 
  (c) In the event that the Company or any of its respective successors or
assigns (i) consolidates with or merges into any other person and shall not be
the continuing or surviving corporation or entity of such consolidation or
merger or (ii) transfers all or substantially all of its properties and assets
to any person, then, and in each such case, the successors and assigns of such
entity shall assume the obligations set forth in this Section 5.12, which
obligations are expressly intended to be for the irrevocable benefit of, and
shall be enforceable by, each MIT Indemnified Party.
 
  5.13 Agreement to Defend. In the event any claim, action, suit, investigation
or other proceeding by any governmental body or other person or other legal or
administrative proceeding is commenced that questions the validity or legality
of the transactions contemplated hereby or seeks damages in connection
therewith, the parties hereto agree to cooperate and use their commercially
reasonable efforts to defend against and respond thereto.
 
  5.14 Public Announcements. The parties hereto will consult with each other
before issuing, and provide each other with the reasonable opportunity to
review and comment upon, any press release or otherwise making any public
statements with respect to the transactions contemplated by this Agreement, and
shall not issue any
 
                                      A-38
<PAGE>
 
such press release or make any such public statement without the reasonable
consent of the other party, except as may be required by applicable law, by
court process or by obligations pursuant to any listing agreement with any
national securities exchange or transaction reporting system so long as the
other party is notified promptly by the disclosing party of such press release
or public statement. The Parties agree that the initial press release to be
issued with respect to the transactions contemplated by this Agreement will be
in the form agreed to by the Parties hereto prior to the execution of the
Agreement.
 
  5.15 Other Actions. Except as contemplated by this Agreement, neither the
Company nor MIT shall, nor shall the Company or MIT permit any of its
Subsidiaries to, take or agree or commit to take any action that is reasonably
likely to result in any of its respective representations or warranties
hereunder being untrue in any material respect or in any of the conditions to
the Merger set forth in Article VI not being satisfied. Each of the parties
agrees to use its reasonable best efforts to satisfy the conditions to Closing
set forth in this Agreement.
 
  5.16 Advice of Changes; SEC Filings. The Company and MIT, as the case may be,
shall confer on a regular basis with each other, report on operational matters
and promptly advise each other orally and in writing of any change or event
having, or which would have a Material Adverse Effect on the Company or MIT, as
the case may be. The Company and MIT shall promptly provide each other (or
their respective counsel) copies of all filings made by such party or its
Subsidiaries with the SEC or any other state or federal Governmental Entity in
connection with this Agreement and the transactions contemplated hereby.
 
  5.17 Reorganization. It is the intention of the Company and MIT that the
Merger will qualify as a reorganization described in Section 368(a) of the Code
(and any comparable provisions of applicable state or local law). Neither the
Company nor MIT (nor any of their respective Subsidiaries) will take or omit to
take any action (whether before, on or after the Closing Date), which action or
omission would cause the Merger not to be so treated. The parties will
characterize the Merger as such a reorganization for purposes of all Tax
Returns and other filings.
 
  5.18 Conveyance Taxes. The Company and MIT will (a) cooperate in the
preparation, execution and filing of all returns, questionnaires, applications
or other documents regarding any real property transfer or gains, sales, use,
transfer, value added, stock transfer and stamp taxes, any transfer, recording,
registration and other fees and any similar taxes which become payable in
connection with the transactions contemplated by this Agreement that are
required or permitted to be filed on or before the Effective Time, (b)
cooperate in the preparation, execution and filing of all returns,
questionnaires, applications or other documents regarding any applicable
exemptions to any such tax or fee, and (c) each pay any such tax or fee which
becomes payable by it on or before the Effective Time.
 
  5.19 Board of Trustees. The Company and MIT shall take such action as may be
necessary or advisable (including seeking approval of such matters as may be
necessary or advisable at the Company stockholders meeting and including a
solicitation of proxies for such matters in the Joint Proxy Statement) to
ensure that immediately after the Effective Time, two of the individuals
designated on Exhibit B hereto shall be elected to serve as members of the
Board of Trustees of the Surviving Entity. Exhibit B hereto also indicates the
assignment of such trustees to the classes on the Board of Trustees on which
they shall serve.
 
  5.20 Registrations Rights Agreements. MIT shall use its commercially
reasonable efforts to obtain a written waiver of each holder of Registrable
Securities (as defined) under that certain Amended and Restated Investor Rights
Agreement dated as of February 23, 1996 between MIT, Hunt Realty Acquisitions,
L.P., USAA Real Estate Company, Meridian Point Realty Trust '83, Ameritech and
OTR, to the restrictions on the ability of MIT to grant registration rights
that are pari passu or senior to the registration rights granted to such
holders thereunder. MIT and the Company shall each use its commercially
reasonable efforts to negotiate a resolution with any affected stockholders of
MIT or the Company of any conflicts between the "piggy back" registration
rights granted by MIT to certain of its stockholders and the "demand"
registration rights granted by the Company to certain of its stockholders.
 
 
                                      A-39
<PAGE>
 
  5.21 Indemnification Agreements. At the Effective Time, the Surviving Entity
shall execute and deliver an indemnification agreement in substantially the
form attached as Exhibit D hereto to the two individuals on Exhibit B who are
appointed to the Board of Trustees of the Company.
 
  5.22 Redemption or Conversion of MIT Series B Preferred Stock. Prior to the
Effective Time, MIT shall take all actions that are necessary or appropriate
and in accordance with the terms of the Articles Supplementary classifying
2,272,727 Shares of MIT Preferred Stock as MIT Series B Preferred Stock (the
"Articles Supplementary") to (a) redeem all of the outstanding shares of MIT
Series B Preferred Stock for an amount per share equal to $16.95, plus, an
amount equal to all per share dividends on the MIT Series B Preferred Stock
then accumulated and unpaid thereon, whether or not authorized, to and
including the date fixed for redemption or (b) require all holders of
outstanding shares of MIT Series B Preferred Stock to exchange such holders'
shares of MIT Series B Preferred Stock for the number of fully paid and
nonassessable shares of MIT Common Stock to which such holders would be
entitled as determined in accordance with the Articles Supplementary. The
parties hereto understand that each holder of MIT Series B Preferred Stock may
convert its shares of MIT Series B Preferred Stock into shares of MIT Common
Stock on or before the dated fixed for redemption in accordance with the terms
and conditions of the Articles Supplementary.
 
  5.23 Investigation and Agreement by the Parties; No Other Representations or
Warranties.
 
  (a) Each Party acknowledges and agrees that it has made its own inquiry and
investigation into, and, based thereon, has formed an independent judgment
concerning, the other Party and its Subsidiaries and their businesses and
operations, and such Party has requested such documents and information from
the other Party as such Party considers material in determining whether to
enter into this Agreement and to consummate the transactions contemplated in
this Agreement. Each Party acknowledges and agrees that it has had an
opportunity to ask all questions of and receive answers from the other Party
with respect to any matter such Party considers material in determining whether
to enter into this Agreement and to consummate the transactions contemplated in
this Agreement. In connection with each Party's investigation of the other
Party and its Subsidiaries and their businesses and operations, each Party and
its representatives have received from the other Party or its representatives
certain projections and other forecasts for the other Party and its
Subsidiaries and certain estimates, plans and budget information. Each Party
acknowledges and agrees that there are uncertainties inherent in attempting to
make such projections, forecasts, estimates, plans and budgets; that such Party
is familiar with such uncertainties; that such Party is taking full
responsibility for making its own evaluation of the adequacy and accuracy of
all estimates, projections, forecasts, plans and budgets so furnished to it or
its representatives; and that such Party will not (and will cause all of its
respective Subsidiaries or other Affiliates or any other person acting on its
behalf to not), in the absence of fraud, assert any claim or cause of action
against any of the other Party's direct or indirect partners, directors,
officers, employees, agents, stockholders, Affiliates, consultants, counsel,
accountants, investment bankers or representatives with respect thereto, or
hold any such other person liable with respect thereto.
 
  (b) Each Party agrees that, except for the representations and warranties
made by the other Party that are expressly set forth in Section 3.1 or 3.2 of
this Agreement, as applicable, the other Party has not made and shall not be
deemed to have made to such Party or to any of its representatives or
Affiliates any representation or warranty of any kind. Without limiting the
generality of the foregoing, each Party agrees that neither the other Party nor
any of its Affiliates makes or has made any representation or warranty to such
Party or to any of its representatives or Affiliates with respect to:
 
    (i) any projections, forecasts, estimates, plans or budgets of future
  revenues, expenses or expenditures, future results of operations (or any
  component thereof), future cash flows (or any component thereof) or future
  financial condition (or any component thereof) of the other Party or any of
  its Subsidiaries or the future business, operations or affairs of the other
  Party or any of its Subsidiaries heretofore or hereafter delivered to or
  made available to such Party or its counsel, accountants, advisors,
  lenders, representatives or Affiliates; and
 
 
                                      A-40
<PAGE>
 
    (ii) any other information, statement or documents heretofore or
  hereafter delivered to or made available to such Party or its counsel,
  accountants, advisors, lenders, representatives or Affiliates with respect
  to the other Party or any of its Subsidiaries or the business, operations
  or affairs of the other Party or any of its Subsidiaries, except to the
  extent and as expressly covered by a representation and warranty made by
  the other Party and contained in Section 3.1 or 3.2 of this Agreement, as
  applicable.
 
  5.24 Partnership Agreements. At the Effective Time, the Surviving Entity
shall assume and perform any obligation that MIT or any Subsidiary of MIT has
immediately prior to the Effective Time to issue securities in accordance with
the terms of any partnership agreement to which MIT or any Subsidiary of MIT is
a party, in the same manner and to the same extent that MIT would be required
to perform such obligation if no Merger had been consummated.
 
  5.25 MIT Senior Notes. The Company shall (a) execute and deliver to each
holder of MIT's 7.25% Senior Notes, Series A, due 2007 and 7.30% Senior Notes,
Series B, due 2009 (collectively, the "MIT Senior Notes") evidence of its
assumption of the due and punctual performance and observance of each covenant
and agreement of the Note Purchase Agreement dated November 15, 1997 with
respect thereto and (b) cause to be delivered to each such holder an opinion of
nationally recognized independent counsel to the effect that all agreements or
instruments effecting such assumption are enforceable in accordance with their
terms and comply with the terms of such Note Purchase Agreement.
 
  5.26 MIT Voting Agreement. MIT shall use its reasonable best efforts to cause
The Prudential Insurance Company of America ("Prudential") to enter into a
written agreement with the Company in the form of the agreement between MIT and
Security Capital Group Incorporated referred to in the recitals to this
Agreement (with such changes thereto as are required by the differences in the
parties and the nature of their stock ownership), pursuant to which Prudential
will agree to vote or cause to be voted at the stockholders meeting of MIT
contemplated hereby all of the shares of MIT Common Stock owned by it at such
time in favor of this Agreement and the Merger and the transactions
contemplated thereby (the "Prudential Voting Agreement").
 
                                   ARTICLE VI
 
                              Conditions Precedent
 
  6.1 Conditions to Each Party's Obligation to Effect the Merger. The
respective obligation of each party to effect the Merger shall be subject to
the satisfaction prior to the Closing Date of the following conditions:
 
    (a) MIT Stockholder Approval. The Merger and all other actions
  contemplated hereby that require the approval of MIT's stockholders shall
  have been approved and adopted by the affirmative vote of the holders of a
  majority of the outstanding shares of MIT Common Stock entitled to vote
  thereon.
     
    (b) Company Stockholder Approval. This Agreement and the Merger
  (including the issuance of Company Common Stock and all other actions
  contemplated hereby that require the approval of the Company's stockholders
  shall have been approved and adopted by the affirmative vote of the holders
  of two-thirds of the outstanding shares of Company Common Stock entitled to
  vote thereon.     
 
    (c) Exchange Listing. The shares of Company Common Stock and Company
  Cumulative Redeemable Preferred Stock issuable to MIT stockholders pursuant
  to this Agreement in the Merger and, to the extent such securities are then
  outstanding, upon the exercise of the MIT Stock Options and the MIT
  Warrants shall have been authorized for listing on the Exchange, subject to
  official notice of issuance. The Public MIT Warrants, to the extent such
  securities are then outstanding, shall have been authorized for listing on
  the AMEX, subject to official notice of issuance.
 
    (d) Other Approvals. All consents, approvals, permits and authorizations
  required to be obtained prior to the Effective Time from any Governmental
  Entity as indicated in Section 3.1(c) or Schedule 3.1(c) to the MIT
  Disclosure Schedule in connection with the execution and delivery of this
  Agreement and the
 
                                      A-41
<PAGE>
 
  consummation of the transactions contemplated hereby shall have been made
  or obtained (as the case may be), except for such governmental consents,
  approvals, permits and authorizations the failure of which to be obtained
  would not, in the aggregate, result in a Material Adverse Effect on the
  Company (assuming the Merger has occurred) or to materially adversely
  affect the consummation of the Merger, and no such governmental consent,
  approval, permit or authorization shall impose terms or conditions that
  would have a Material Adverse Effect on the Company (assuming the Merger
  has occurred). Unless otherwise agreed to by the Company and MIT (which
  agreement shall not be unreasonably withheld), no such governmental
  consent, approval, permit or authorization shall then be subject to appeal.
 
    (e) S-4. The S-4 shall have become effective under the Securities Act and
  shall not be the subject of any stop order or proceedings seeking a stop
  order.
 
    (f) No Injunctions or Restraints No temporary restraining order,
  preliminary or permanent injunction or other order issued by any court of
  competent jurisdiction, no order of any Governmental Entity having
  jurisdiction over any party hereto, and no other legal restraint or
  prohibition shall be in effect (an "Injunction") preventing or making
  illegal the consummation of the Merger.
 
    (g) Meridian Refrigerated Stock Purchase Agreement. The sale of the
  outstanding shares of common stock of Meridian Refrigerated, Inc. pursuant
  to that certain Stock Purchase Agreement of even date herewith, a copy of
  which is attached as Exhibit E hereto, shall have been consummated.
 
    (h) Meridian Point Properties Stock Purchase Agreement. The sale of the
  outstanding shares of capital stock of Meridian Point Properties, Inc.
  pursuant to that certain Stock Purchase Agreement of even date herewith, a
  copy of which is attached as Exhibit F hereto, shall have been consummated.
 
  6.2 Conditions to Obligations of the Company. The obligations of the Company
to effect the Merger are subject to the satisfaction of the following
conditions, any or all of which may be waived in whole or in part by the
Company:
 
    (a) Representations and Warranties of MIT. Each of the representations
  and warranties of MIT set forth in this Agreement shall be true and correct
  in all material respects as of the date of this Agreement and (except to
  the extent such representations and warranties speak expressly as of an
  earlier date) as of the Closing Date as though made on and as of the
  Closing Date; provided, however, that this condition shall be deemed to
  have been satisfied unless the individual or aggregate impact of all
  inaccuracies of such representations and warranties (without regard to any
  materiality or Material Adverse Effect qualifier(s) contained in any and
  each such representation or warranty) would have a Material Adverse Effect
  on MIT and its Subsidiaries taken as a whole. The Company shall have
  received a certificate signed on behalf of MIT by the Chief Executive
  Officer and the Chief Financial Officer of MIT to such effect.
 
    (b) Performance of Obligations of MIT. MIT shall have performed in all
  material respects all obligations required to be performed by it under this
  Agreement at or prior to the Closing Date, and the Company shall have
  received a certificate signed on behalf of MIT by the Chief Executive
  Officer and the Chief Financial Officer of MIT to such effect.
 
    (c) Tax Opinions.
 
      (i) The Company shall have received an opinion, in form and substance
    reasonably satisfactory to the Company, dated the Closing Date, a copy
    of which will be furnished to MIT, of Mayer, Brown & Platt, counsel to
    the Company, to the effect that, if the Merger is consummated in
    accordance with the terms of this Agreement, the Merger will be treated
    as a reorganization within the meaning of Section 368(a) of the Code,
    no gain or loss will be recognized for federal income tax purposes by
    the Company as a result of the Merger. In rendering such opinion, such
    counsel may receive and rely upon customary factual representations of
    fact and covenants of MIT and the Company.
 
      (ii) The Company shall have received an opinion, in substance
    reasonably satisfactory to the Company, dated the Closing Date, of
    Vinson & Elkins L.L.P., counsel to MIT, to the effect that (A) MIT has
    qualified to be taxed as a real estate investment trust pursuant to the
    Code for its taxable
 
                                      A-42
<PAGE>
 
    years ending December 31, 1995, 1996, 1997 and 1998 and its taxable
    year ending as of the Closing Date and (B) each MIT Partnership (as
    hereafter defined) is properly treated as a partnership and not as a
    "publicly traded partnership" for federal income tax purposes. For
    purposes of this Agreement, the term "MIT Partnership" shall include
    all MIT Subsidiaries that are organized as partnerships included in
    Schedule 3.1(a) to the MIT Disclosure Schedule.
 
    (d) Director and Officer Loans. The directors and officers of MIT shall
  have paid in full any and all loans which MIT has guaranteed.
 
    (e) MIT Series B Preferred Stock. All shares of MIT Series B Preferred
  Stock shall have been redeemed or exchanged pursuant to Section 5.22
  hereof.
 
  6.3 Conditions to Obligations of MIT. The obligation of MIT to effect the
Merger is subject to the satisfaction of the following conditions, any or all
of which may be waived in whole or in part by MIT:
 
    (a) Representations and Warranties of the Company. Each of the
  representations and warranties of the Company set forth in this Agreement
  shall be true and correct in all material respects as of the date of this
  Agreement and (except to the extent such representations and warranties
  speak as of an earlier date) as of the Closing Date as though made on and
  as of the Closing Date; provided, however, that this condition shall be
  deemed to have been satisfied unless the individual or aggregate impact of
  all inaccuracies of such representations and warranties (without regard to
  any materiality or Material Adverse Effect qualifier(s) contained in any
  and each such representation and warranty) would have a Material Adverse
  Effect on the Company and its Subsidiaries taken as a whole. MIT shall have
  received a certificate signed on behalf of the Company by the Chief
  Executive Officer and the Chief Financial Officer of the Company to such
  effect.
 
    (b) Performance of Obligations of the Company. The Company shall have
  performed in all material respects all obligations required to be performed
  by it under this Agreement at or prior to the Closing Date, and MIT shall
  have received a certificate signed on behalf of the Company by the Chief
  Executive Officer and the Chief Financial Officer of the Company to such
  effect.
 
    (c) Tax Opinions
 
      (i) MIT shall have received an opinion, in form and substance
    reasonably satisfactory to MIT, dated the Closing Date, a copy of which
    will be furnished to the Company, of Vinson & Elkins L.L.P., counsel to
    MIT, to the effect that, if the Merger is consummated in accordance
    with the terms of this Agreement, the Merger will be treated as a
    reorganization within the meaning of Section 368(a) of the Code, no
    gain or loss will be recognized for federal income tax purposes by MIT
    as a result of the Merger and no gain or loss will be recognized for
    federal income tax purposes by a stockholder of MIT as a result of the
    Merger upon the conversion of shares of MIT Common Stock or MIT Series
    D Preferred Stock into shares of Company Common Stock or Company
    Cumulative Redeemable Preferred Stock, as applicable, except with
    respect to (A) cash, if any, received as Merger Consideration, (B)
    cash, if any, received in lieu of fractional shares of Company Common
    Stock or (C) a stockholder in special circumstances, such as a
    stockholder who acquired shares of MIT Common Stock through the
    exercise of employee stock options or otherwise as compensation for
    employment. In rendering such opinion, such counsel may receive and
    rely upon customary factual representations of fact and covenants of
    MIT and the Company.
 
      (ii) MIT shall have received an opinion, in substance reasonably
    satisfactory to MIT, dated the Closing Date, of Mayer, Brown & Platt,
    counsel to Company, to the effect that (A) Company has qualified to be
    taxed as a real estate investment trust pursuant to the Code for its
    taxable years ending December 31, 1995, 1996, 1997 and 1998 and
    Company's present organization, ownership, method of operation, assets
    and income are such that Company will so qualify for the taxable year
    in which the Closing occurs and (B) each Company Partnership (as
    hereinafter defined) is properly treated as a partnership and not as a
    "publicly traded partnership" for federal income tax purposes. For
    purposes of this Agreement, the term "Company Partnership" shall
    include all Company Subsidiaries that are organized as partnerships
    included in Schedule 3.2(a) to the Company Disclosure Schedule.
 
                                      A-43
<PAGE>
 
                                  ARTICLE VII
 
                           Termination and Amendment
 
  7.1 Termination. This Agreement may be terminated and the Merger may be
abandoned at any time prior to the Effective Time, whether before or after
approval of the matters presented in connection with the Merger by the
stockholders of MIT and the stockholders of the Company:
 
    (a) by mutual written consent of the Company and MIT, or by mutual action
  of their respective Board of Directors or Board of Trustees, as applicable;
 
    (b) by either the Company or MIT:
 
      (i) if (A) any Governmental Entity shall have issued any Injunction
    or taken any other action permanently restraining, enjoining or
    otherwise prohibiting the consummation of the Merger and such
    Injunction or other action shall have become final and nonappealable;
    or (B) any required approval of the stockholders of a party shall not
    have been obtained by reason of the failure to obtain the required vote
    upon a vote held at a duly held meeting of stockholders, or at any
    adjournment thereof;
 
      (ii) if the Merger shall not have been consummated by July 31, 1999
    (the "Termination Date"); provided, however, that the right to
    terminate this Agreement under this Section 7.1(b)(ii) shall not be
    available to any party whose breach of any representation or warranty
    or failure to fulfill any covenant or agreement under this Agreement
    has been the cause of or resulted in the failure of the Merger to occur
    on or before such date; or
 
      (iii) in the event of a breach by the other Party of any
    representation, warranty, covenant or other agreement contained in this
    Agreement which (A) would give rise to the failure of a condition set
    forth in Section 6.2(a) or (b) or Section 6.3(a) or (b), as applicable,
    and (B) cannot be or has not been cured within 30 days after the giving
    of written notice to the breaching Party of such breach, provided that
    in no event shall such 30-day period extend beyond the Termination
    Date, and expressly including a breach of either party's covenant to
    recommend the approval of the Merger and this Agreement as provided in
    Section 5.5 (subject to the provisions of Section 4.2), which breach
    the parties agree cannot be cured and shall be deemed a "willful
    breach" for the purposes of Section 7.2(a) (a "Material Breach")
    (provided that the terminating Party is not then in Material Breach of
    any representation, warranty, covenant or other agreement contained in
    this Agreement);
 
    (c) by the Company if (i) the Board of Directors of MIT shall have
  withdrawn or modified, in any manner which is adverse to the Company, its
  recommendation or approval of the Merger or this Agreement and the
  transactions contemplated hereby, or shall have resolved to do so, in each
  case, in compliance with Section 4.2, or (ii) the Board of Directors of MIT
  shall have recommended to the stockholders of MIT any MIT Acquisition
  Proposal or any transaction described in the definition of MIT Acquisition
  Proposal, or shall have resolved to do so, in each case, in compliance with
  Section 4.2;
 
    (d) by MIT, if (i) the Board of Directors of MIT shall have determined to
  withdraw or modify, in any manner which is adverse to the Company, its
  recommendation or approval of the Merger or this Agreement and the
  transactions contemplated hereby pursuant to Section 4.2, (ii) MIT shall
  have given notice to the Company advising the Company that MIT has received
  a MIT Superior Proposal from a third party, specifying the material terms
  and conditions of such MIT Superior Proposal (including the identity of the
  third party) and that MIT intends to terminate this Agreement in accordance
  with this Section 7.1(d), and (iii) either (A) the Company shall not have
  revised its acquisition proposal within five business days after the date
  on which such notice is deemed to have been given to the Company, or (B) if
  the Company within such period shall have revised its acquisition proposal,
  the Board of Directors of MIT, after consultation with MIT's financial
  advisor, shall have determined in its good faith reasonable judgment that
  the third party's MIT Acquisition Proposal is superior to the Company's
  revised acquisition proposal; provided that MIT may not effect such
  termination pursuant to this Section 7.1(d) unless MIT has
  contemporaneously with such termination tendered payment to the Company, or
  its designee, of the MIT Termination Fee pursuant to Section 7.2(b) and the
  five business day period has expired; or
 
 
                                      A-44
<PAGE>
 
    (e) by MIT if (i) the Board of Trustees of the Company shall have failed
  to recommend against a tender or exchange offer for the acquisition of 50%
  or more of the Company Common Stock then outstanding within the time
  periods proscribed under Rule 14d-9 and Rule 14e-2 under the Exchange Act,
  or (ii) the Company shall have (A) entered into or recommended or been
  required to disclose a transaction, or proposal or offer, involving the
  acquisition, directly or indirectly, for consideration consisting of cash
  and/or securities, of 50% or more of the shares of Company Common Stock
  then outstanding, voting securities representing 50% or more of the voting
  power of the then outstanding shares of beneficial interest of the Company,
  or all or substantially all of the assets of the Company (a "Company
  Acquisition Proposal"), other than an unsolicited Company Acquisition
  Proposal that the Board of Trustees of the Company is recommending against
  or with respect to which the Board of Trustees of the Company has not yet
  taken a position, or (B) entered into any agreement in respect of a Company
  Acquisition Proposal.
 
  A terminating Party shall provide written notice of termination to the other
Party specifying with particularity the reason for such termination. A
terminating Party may rely on only one provision in this Section 7.1 for any
such termination.
 
  7.2 Effect of Termination.
 
  (a) In the event of termination of this Agreement by any party hereto as
provided in Section 7.1, this Agreement shall forthwith become void and there
shall be no liability or obligation on the part of any party hereto except with
respect to this Section 7.2, the second and third sentences of Section 5.4,
Section 8.1, Section 8.3, Section 8.4, Section 8.5, Section 8.6, Section 8.7
and Section 8.8; provided, however, that, notwithstanding the provisions of
Sections 7.2(e) and (f), if such termination results from a willful breach
(except as provided in Section 8.8) by a party hereto of any of its
representations or warranties or of any of its covenants or agreements
contained in this Agreement, the breaching Party shall be fully liable for such
breach notwithstanding the termination of this Agreement.
 
  (b) If (i) the Company terminates this Agreement pursuant to Section 7.1(c)
or (ii) MIT terminates this Agreement pursuant to Section 7.1(d), then MIT
shall, on the day of such termination, pay the Company a fee in cash equal to
Twenty-Five Million Dollars ($25,000,000), or if such termination occurs at any
time prior to the time at which Prudential enters into the Prudential Voting
Agreement the amount of such fee shall be Forty Million Dollars ($40,000,000)
(such fee in the applicable amount is referred to as the "MIT Termination
Fee"), by wire transfer of immediately available funds to an account designated
by the Company.
 
  (c) If (i) MIT terminates this Agreement pursuant to Section 7.1(e), then the
Company shall, on the day of such termination, pay MIT a fee of Twenty-Five
Million Dollars ($25,000,000) (the "Company Termination Fee") in cash by wire
transfer of immediately available funds to an account designated by MIT.
 
  (d) If (i) this Agreement is terminated by either MIT or the Company pursuant
to clause (B) of Section 7.1(b)(i) because the stockholders of MIT shall not
have approved and adopted this Agreement and the Merger at MIT's stockholders
meeting referred to in Section 5.5, (ii) at the time of such stockholder
meeting there shall have been pending a MIT Acquisition Proposal and (iii)
within 12 months after the date of such MIT stockholders' meeting, MIT agrees
to or consummates a MIT Acquisition Proposal (whether or not such Merlot
Acquisition Proposal is the same Merlot Acquisition Proposal pending at the
time of such meeting), then at the closing or other consummation of such MIT
Acquisition Proposal MIT shall pay the Company an amount equal to the MIT
Termination Fee by wire transfer of immediately available funds to an account
designated by the Company.
 
  (e) If this Agreement is terminated by the Company pursuant to Section
7.1(b)(iii) because MIT is in Material Breach of this Agreement, then MIT
shall, on the date of such termination, pay to the Company (provided MIT was
not entitled to terminate this Agreement pursuant to Section 7.1(b)(iii)) the
Company Termination Expenses (as defined below) in cash by wire transfer of
immediately available funds to an account
 
                                      A-45
<PAGE>
 
designated by the Company. The Company Termination Expenses shall be an amount
equal to the lesser of One Million Two Hundred and Fifty Thousand Dollars
($1,250,000) or the Company's out-of-pocket expenses incurred in connection
with this Agreement and the transactions contemplated hereby (including all
attorney's, accountant's and investment banker's fees and expenses and a
reasonable allocation of the time of any in-house counsel engaged on the
transactions contemplated hereby).
 
  (f) If this Agreement is terminated by MIT pursuant to Section 7.1(b)(iii)
because the Company is in Material Breach of this Agreement, the Company shall,
on the day of such termination, pay to MIT (provided the Company was not
entitled to terminate this Agreement pursuant to Section 7.1(b)(iii)) the MIT
Termination Expenses (as defined below) in cash by wire transfer of immediately
available funds to an account designated by MIT. The MIT Termination Expenses
shall be an amount equal to the lesser of One Million Two Hundred and Fifty
Thousand Dollars ($1,250,000) or MIT's out-of-pocket expenses incurred in
connection with this Agreement and the transactions contemplated hereby
(including all attorney's, accountant's and investment banker's fees and
expenses, and a reasonable allocation of the time of any in-house counsel
engaged on the transactions contemplated hereby).
 
  (g) If (i) this Agreement is terminated by the Company pursuant to Section
7.1(b)(iii) because MIT is in Material Breach of this Agreement, (ii) at the
time of termination of this Agreement there shall have been a pending MIT
Acquisition Proposal and (iii) within 12 months after the date of the
termination of this Agreement, MIT agrees to or consummates a MIT Acquisition
Proposal (whether or not such MIT Acquisition Proposal is the same MIT
Acquisition Proposal pending at the time of such termination), then at the
closing or other consummation of such MIT Acquisition Proposal MIT shall pay
the Company an amount equal to the MIT Termination Fee (less any Company
Termination Expenses previously paid to the Company pursuant to Section 7.2(e)
and the amount of any damages payable pursuant to Section 7.2(a) or any
settlements paid with respect to claims made under Section 7.2(a)) by wire
transfer of immediately available funds to an account designated by the
Company.
 
  (h) Notwithstanding the above, to the extent that the right to receive a MIT
Termination Fee or Company Termination Fee (the "Break-up Payment") in a
taxable year would create excessive bad income ("EBI") for the recipient (the
"Payee"), the right to receive the portion of the Break-up Payment that would
create EBI shall be deferred, or potentially extinguished, as set forth below.
The right to receive a Break-up Payment shall be treated as creating EBI for
the Payee to the extent that the right to receive the amount, when taken into
account with other gross income of the Payee for that year, would cause the
Payee to violate for that taxable year either the 75% or 95% gross income tests
described in Sections 856(c)(2) or 856(c)(3) of the Code.
 
  Any amount deferred in a particular taxable year pursuant to the preceding
sentences shall become payable in the next succeeding year(s); but only to the
extent that it would not then create EBI. To the extent that any deferred
amount would continue to create EBI after it has been carried forward for seven
years (applying first in, first out principles), that portion shall no longer
be an obligation of the payor. Notwithstanding the foregoing, Break-up Payments
that would otherwise be considered EBI under the preceding provisions shall be
made if and to the extent the Payee, as a condition precedent, obtains an
opinion of tax counsel or private ruling from the IRS that the receipt of such
excess amounts would not adversely affect the Payee's ability to qualify as a
REIT. If a Break-up Payment is inadvertently made in an amount in excess of the
limitations set forth above, such excess payments shall be treated as a loan
from the payor to the Payee, to be repaid as soon as practicable following
discovery of the overpayment. The purpose of these provisions dealing with EBI
is to protect the REIT status of the Payees, and these provisions shall be
interpreted and applied so as to accomplish that purpose.
 
  7.3 Amendment. This Agreement may be amended by the parties hereto, by action
taken or authorized by their respective Board of Directors and Board of
Trustees, at any time before or after approval of the matters presented in
connection with the Merger by the stockholders of MIT and the stockholders of
the Company, provided, however, that after any such approval, no amendment
shall be made which by law requires further approval by such stockholders
without first obtaining such further approval. This Agreement may not be
amended except by an instrument in writing signed on behalf of each of the
parties hereto.
 
                                      A-46
<PAGE>
 
  7.4 Extension; Waiver. At any time prior to the Effective Time, the parties
hereto, by action taken or authorized by their respective Board of Directors
and Board of Trustees, may, to the extent legally allowed: (a) extend the time
for the performance of any of the obligations or other acts of the other
parties hereto; (b) waive any inaccuracies in the representations and
warranties contained herein or in any document delivered pursuant hereto; and
(c) subject to the provision in the last sentence of Section 7.3, waive
compliance with any of the agreements or conditions contained herein. Any
agreement on the part of a party hereto to any such extension or waiver shall
be valid only if set forth in a written instrument signed on behalf of such
party.
 
                                  ARTICLE VIII
 
                               General Provisions
 
  8.1 Payment of Expenses. Each party hereto shall pay its own expenses
incident to preparing for entering into and carrying out this Agreement and the
consummation of the transactions contemplated hereby, whether or not the Merger
shall be consummated, except that the Company and MIT shall share equally the
expenses incurred by the Company and MIT in connection with the printing and
mailing of the Joint Proxy Statement and all filing fees paid in connection
with the S-4 to the SEC and provided that this Section 8.1 shall in no way
affect the rights and obligations of the Parties under Article VII.
 
  8.2 Nonsurvival of Representations, Warranties and Agreements. Subject to the
remaining provisions of this Section 8.2, the representations, warranties and
agreements in this Agreement shall remain operative and in full force and
effect regardless of any investigation made by or on behalf of any other party
hereto, any person controlling any such party or any of their officers,
directors, representatives or agents whether prior to or after the execution of
this Agreement. None of the representations, warranties and agreements in this
Agreement or in any instrument delivered pursuant to this Agreement shall
survive the Effective Time and any liability for breach or violation thereof
shall terminate absolutely and be of no further force and effect at and as of
the Effective Time, except for the agreements contained in Sections 2.1, 2.2,
5.9 through 5.13, 5.19, 5.21 and Article VIII, and the agreements delivered
pursuant to Section 5.7. The Confidentiality Agreement shall survive the
execution and delivery of this Agreement, and the provisions of the
Confidentiality Agreement shall apply to all information and material delivered
hereunder.
 
                                      A-47
<PAGE>
 
  8.3 Notices. Any notice or communication required or permitted hereunder
shall be in writing and either delivered personally, telegraphed or telecopied
or sent by certified or registered mail, postage prepaid, and shall be deemed
to be given, dated and received (a) when so delivered personally, (b) upon
receipt of an appropriate electronic answerback or confirmation when so
delivered by telegraph or telecopy (to such number specified below or another
number or numbers as such person may subsequently designate by notice given
hereunder), or (c) five business days after the date of mailing to the
following address or to such other address or addresses as such person may
subsequently designate by notice given hereunder, if so delivered by mail:
 
    (i) if to the Company, to:
 
      ProLogis Trust
      14100 East 35th Place
      Aurora, Colorado 80111
      Telecopy: (303) 576-2761
      Attention: General Counsel
 
      with a copy to:
 
      Mayer, Brown & Platt
      190 South LaSalle Street
      Chicago, Illinois 60603
      Telecopy: (312) 701-7711
      Attention: Michael T. Blair
 
      and (b) if to MIT, to:
 
      Meridian Industrial Trust, Inc.
      455 Market Street, 17th Floor
      San Francisco, California 94105
      Telecopy: (415) 228-3909
 
      Attention: Chief Executive Officer
 
      with copies to:
 
      Vinson & Elkins L.L.P.              Meridian Industrial Trust, Inc.
      2001 Ross Avenue                    455 Market Street, 17th Floor
      Dallas, Texas 75201                 San Francisco, California 94105
      Telecopy: (214) 220-7716            Telecopy: (415) 284-2840
      Attention: Michael D. Wortley       Attention: General Counsel
 
  8.4 Interpretation. When a reference is made in this Agreement to Sections,
such reference shall be to a Section of this Agreement unless otherwise
indicated. The table of contents, glossary of defined terms and headings
contained in this Agreement are for reference purposes only and shall not
affect in any way the meaning or interpretation of this Agreement. Whenever the
word "include," "includes" or "including" are used in this Agreement, they
shall be deemed to be followed by the words "without limitation." Unless the
context otherwise requires, "or" is disjunctive but not necessarily exclusive,
and words in the singular include the plural and in the plural include the
singular.
 
  8.5 Counterparts. This Agreement may be executed in two or more counterparts,
all of which shall be considered one and the same agreement and shall become
effective when two or more counterparts have been signed by each of the parties
and delivered to the other parties, it being understood that all parties need
not sign the same counterpart.
 
  8.6 Entire Agreement; No Third Party Beneficiaries. This Agreement (together
with the Confidentiality Agreement and any other documents and instruments
referred to herein) constitutes the entire agreement and supersedes all prior
agreements and understandings, both written and oral, among the parties with
respect to the subject matter hereto. The provisions of Sections 5.9, 5.10,
5.11, 5.12, 5.19, 5.21, 5.24 and 5.25 are intended to
 
                                      A-48
<PAGE>
 
be for the benefit of, and shall be enforceable by, the persons referred to
therein and their respective heirs and representatives. Except as provided in
the immediately preceding sentence, this Agreement is not intended to confer
upon any person other than the parties hereto any rights or remedies hereunder.
 
  8.7 Governing Law. This Agreement shall be governed by and construed in
accordance with the laws of the State of Maryland, without giving effect to the
principles of conflicts of law thereof.
 
  8.8 No Remedy in Certain Circumstances. Each party agrees that, should any
court or other competent authority hold any provision of this Agreement or part
hereof to be null, void or unenforceable, or order any party to take any action
inconsistent herewith or not to take an action consistent herewith or required
hereby, the validity, legality and enforceability of the remaining provisions
and obligations contained or set forth herein shall not in any way be affected
or impaired thereby, unless the foregoing inconsistent action or the failure to
take an action constitutes a material breach of this Agreement or makes this
Agreement impossible to perform, in which case this Agreement shall terminate
pursuant to Article VII hereof. Except as otherwise contemplated by this
Agreement, to the extent that a party hereto took an action inconsistent
herewith or failed to take action consistent herewith or required hereby
pursuant to an order or judgment of a court or other competent authority, such
party shall not incur any liability or obligation unless such party breached
its obligations under Confidentiality Agreement or did not in good faith seek
to resist or object to the imposition or entering of such order or judgment.
 
  8.9 Assignment. Neither this Agreement nor any of the rights, interests or
obligations hereunder shall be assigned by any of the parties hereto (whether
by operation of law or otherwise) without the prior written consent of the
other parties. Subject to the preceding sentence, this Agreement will be
binding upon, inure to the benefit of and be enforceable by the parties and
their respective successors and assigns.
 
  8.10 Specific Performance. The parties hereby acknowledge and agree that the
failure of any party to this Agreement to perform its obligations hereunder in
accordance with their specific terms or to otherwise comply with such
obligations, including its failure to take all actions as are necessary on its
part to the consummation of the Merger, will cause irreparable injury to the
other party to this Agreement for which damages, even if available, will not be
an adequate remedy. Accordingly, each of the parties hereto hereby consents to
the issuance of injunctive relief by any court of competent jurisdiction to
compel performance of any party's obligations, including an injunction to
prevent breaches, and to the granting by any such court of the remedy of
specific performance of the terms and conditions hereof.
 
  8.11 Director, Trustee and Officer Liability. To the maximum extent
permissible under Maryland law, the directors, trustees, officers and
stockholders of each party hereto and its Affiliates in their capacity as such
shall not have any personal liability or obligation arising under this
Agreement (including any claims that the other party may assert). Each Party
shall look solely to the assets of the other party hereto for satisfaction of
any liability of such other party with respect to this Agreement and any other
agreements to which it is a party.
 
  8.12 Schedule Definitions. All capitalized terms in the MIT Disclosure
Schedule or Company Disclosure Schedule shall have the meanings ascribed to
them herein, unless the context otherwise requires or as otherwise defined.
 
              [THE REMAINDER OF THIS PAGE IS INTENTIONALLY BLANK]
 
 
                                      A-49
<PAGE>
 
  In Witness Whereof, each party has caused this Agreement to be signed by its
respective officer thereunto duly authorized, all as of the date first written
above.
 
                                          PROLOGIS TRUST, a Maryland real
                                          estate investment trust
 
                                                 /s/ Edward S. Nekritz
                                          By: _________________________________
                                          Name: Edward S. Nekritz
                                          Title: Vice President
 
                                          MERIDIAN INDUSTRIAL TRUST, INC., a
                                          Maryland corporation
 
                                                 /s/ Allen J. Anderson
                                          By: _________________________________
                                          Name: Allen J. Anderson
                                          Title: Chairman and Chief Executive
                                           Officer
 
                                      A-50
<PAGE>
 
                                                                         ANNEX B
 
 
                           [Merrill Lynch letterhead]
 
                                                               November 16, 1998
 
Board of Trustees
ProLogis Trust
14100 East 35th Place
Aurora, CO 80011
 
Members of the Board of Trustees:
 
  ProLogis Trust (the "Acquiror") and Meridian Industrial Trust, Inc. (the
"Company") propose to enter into an Agreement and Plan of Merger, dated
November 16, 1998 (the "Agreement"), pursuant to which the Company will be
merged with and into the Acquiror in a transaction (the "Transaction") in which
each of the issued and outstanding shares of beneficial interest of the
Company, par value $.001 per share (all such shares, the "Company Shares"),
will be converted into the right to receive 1.10 shares (the "Exchange Ratio")
of Acquiror shares of beneficial interest, par value $.01 per share (all such
shares, the "Acquiror Shares") plus, to the extent the Average Trading Price
(as defined in the Agreement) is less than $22.725 per share, an amount in cash
of up to $2.00 (such per share cash payment together with the Exchange Ratio,
the "Merger Consideration").
 
  You have asked us whether, in our opinion, the Merger Consideration is fair
from a financial point of view to the Acquiror and the holders of Acquiror
Shares.
 
  In arriving at the opinion set forth below, we have, among other things:
 
    (1) Reviewed certain publicly available business and financial
  information relating to the Acquiror and the Company which we deemed to be
  relevant;
 
    (2) Reviewed certain information, including financial forecasts, relating
  to the business, earnings, funds from operations, adjusted funds from
  operations, cash flow, assets, liabilities and prospects of the Acquiror
  and the Company furnished to us by the Acquiror and the Company, as well as
  the amount and timing of the cost savings and related expenses and
  synergies expected to result from the Transaction (the "Expected
  Synergies") furnished to us by the Acquiror and the Company;
 
    (3) Conducted discussions with members of senior management of the
  Acquiror and the Company concerning the matters described in clauses (1)
  and (2) above, as well as their respective business and prospects before
  and after giving effect to the Transaction and the Expected Synergies;
 
    (4) Reviewed the market prices and valuation multiples for the Acquiror
  Shares and the Company Shares and compared them with those of certain
  publicly traded companies that we deemed relevant;
 
    (5) Reviewed the results of operations of the Acquiror and the Company
  and compared them with those of certain publicly traded companies that we
  deemed to be relevant;
 
    (6) Compared the proposed financial terms of the Transaction with the
  financial terms of certain other transactions which we deemed to be
  relevant;
 
    (7) Participated in certain discussions and negotiations among
  representatives of the Acquiror and the Company and their financial and
  legal advisors;
 
    (8) Reviewed the potential pro forma impact of the Transaction on the
  Acquiror;
 
    (9) Reviewed a draft dated November 15, 1998 of the Agreement; and
 
    (10) Reviewed such other financial studies and analyses and took into
  account such other matters as we deemed necessary, including our assessment
  of general economic, market and monetary conditions.
 
                                      B-1
<PAGE>
 
  In preparing our opinion, we have assumed and relied on the accuracy and
completeness of all information supplied or otherwise made available to us,
discussed with or reviewed by or for us, or publicly available, and we have not
assumed any responsibility for independently verifying such information or
undertaken an independent evaluation or appraisal of any of the assets or
liabilities of the Acquiror or the Company or been furnished with any such
evaluation or appraisal. In addition, we have not assumed any obligation to
conduct any physical inspection of the properties or facilities of the Acquiror
or the Company. With respect to the financial forecast information and the
Expected Synergies furnished to or discussed with us by the Acquiror or the
Company, we have assumed that they have been reasonably prepared and reflect
the best currently available estimates and judgment of the Acquiror's or
Company's management as to (a) the expected future financial performance of the
Acquiror or the Company, as the case may be, and (b) the Expected Synergies. We
have further assumed that the Transaction will qualify as a tax-free
reorganization for United States federal and any applicable state income tax
purposes. We have assumed that the Transaction will not change the REIT status
of the pro forma entity, and that the final form of the Agreement will be
substantially similar to the last draft thereof reviewed by us.
 
  Our opinion is necessarily based upon market, real estate, economic and other
conditions as they exist and can be evaluated on, and on the information made
available to us as of, the date hereof. We have assumed that, in the course of
obtaining the necessary regulatory or other consents or approvals (contractual
or otherwise) for the Transaction, no restrictions, including any divestiture
requirements or amendments or modifications, will be imposed that will have a
material adverse effect on the contemplated benefits of the Transaction or the
Expected Synergies.
 
  We are acting as financial advisor to the Acquiror in connection with the
Transaction and will receive a fee from the Acquiror for our services which is
contingent upon the consummation of the Transaction. In addition, the Acquiror
has agreed to indemnify us for certain liabilities arising out of our
engagement. We have, in the past, provided financial advisory services to the
Acquiror and may continue to do so and have received, and may receive, fees for
the rendering of such services. In addition, in the ordinary course of our
business, we may actively trade the securities of the Acquiror or the Company,
for our own account and for the accounts of customers, and, accordingly, may at
any time hold a long or short position in such securities.
 
  This opinion is for the use and benefit of the Board of Trustees of the
Acquiror. Our opinion does not address the merits of the underlying decision by
the Acquiror to engage in the Transaction and does not constitute a
recommendation to any shareholder of the Acquiror as to how such shareholder
should vote on the proposed merger. We are not expressing any opinion herein as
to the prices at which of the Acquiror Shares will trade following the
announcement or consummation of the Transaction.
 
  On the basis of and subject to the foregoing, we are of the opinion that, as
of the date hereof, the Merger Consideration is fair from a financial point of
view to the Acquiror and the holders of Acquiror Shares.
 
                                          Very truly yours,
 
                                          /s/ Merrill, Lynch, Pierce, Fenner &
                                          Smith
                                                     Incorporated
                                          Merrill, Lynch, Pierce, Fenner &
                                           Smith
                                                     Incorporated
 
                                      B-2
<PAGE>
 
                                                                         ANNEX C
       
                                                       PERSONAL AND CONFIDENTIAL
 
                                                               November 16, 1998
 
Board of Directors
Meridian Industrial Trust, Inc.
455 Market Street, 17th Fl.
San Francisco, CA 94105
 
Gentlemen:
 
  You have requested our opinion as to the fairness from a financial point of
view to the holders of the outstanding shares of Common Stock, par value $0.001
per share (the "MIT Common Stock"), of Meridian Industrial Trust, Inc. ("MIT")
of the Consideration (as defined below) to be received for MIT Common Stock
pursuant to the Agreement and Plan of Merger, dated as of November 16, 1998,
between ProLogis Trust ("PLD") and MIT (the "Agreement"). Pursuant to the
Agreement, MIT will be merged with and into PLD (the "Merger") and each
outstanding share of MIT Common Stock will be converted into 1.1 shares (the
"Conversion Number") of Common Stock, par value $0.01 of PLD (the "PLD Common
Stock"). If the average of the daily high and low per share transaction prices
for PLD Common Stock as reported in The Wall Street Journal's New York Stock
Exchange Composite Transactions Reports for a 15-day period (as randomly
selected by Arthur Andersen LLP) prior to closing (the "Average Trading Price")
is less than $22.725, an additional amount of cash will be paid to the holders
of MIT Common Stock (not to exceed $2.00 per share) equal to the amount by
which (x) $25.00 exceeds (y) the product of the Average Trading Price
multiplied by the Conversion Number (such cash together with PLD Common Stock
to be received in the Merger, the "Consideration"), as more fully set forth in
the Agreement.
 
  Goldman, Sachs & Co. ("Goldman Sachs"), as part of its investment banking
business, is continually engaged in the valuation of businesses and their
securities in connection with mergers and acquisitions, negotiated
underwritings, competitive biddings, secondary distributions of listed and
unlisted securities, private placements and valuations for estate, corporate
and other purposes. We are familiar with MIT, having acted as (i) lead-managing
underwriter of a public offering of its 8.75% Series D Cumulative Redeemable
Preferred Stock in June 1998 and (ii) co-managing underwriter of an offering of
$160 million of 7.25% and 7.30% Unsecured Notes due 2007 and 2009 in November
1997, as well as having acted as its financial advisor in connection with, and
having participated in certain of the negotiations leading to, the Agreement.
We are familiar with PLD, having acted as (i) lead-managing underwriter of an
offering of $125 million of 7.00% Notes due 2003 in October 1998 and (ii) lead-
managing underwriter of an offering of $250 million of 7.05% Notes due 2006 in
July 1998, and we are providing and may continue to provide investment banking
services to PLD in the future. In addition, Goldman Sachs is familiar with
Security Capital Group Incorporated ("SCG"), which has an equity investment in
PLD, having rendered significant investment banking services to SCG and certain
of its affiliates from time to time, including having acted as principal in
certain transactions, and we are providing and may continue to provide
investment banking services or act as principal in certain transactions with
SCG and its affiliates in the future. Goldman Sachs provides a full range of
financial advisory and securities services and, in the course of its normal
trading activities, may from time to time effect transactions and hold
securities, including derivative securities, of PLD, MIT or SCG for its own
account and for the accounts of customers.
 
                                      C-1
<PAGE>
 
  In connection with this opinion, we have reviewed, among other things, the
Agreement; the Voting Agreement, dated as of November 16, 1998, among SCG and
MIT; Annual Reports to Stockholders and Annual Reports on Form 10-K of MIT for
the two years ended December 31, 1997, and in the case of PLD for the four
years ended December 31, 1997; certain interim reports to stockholders and
Quarterly Reports on Form 10-Q of MIT and PLD; certain other communications
from MIT and PLD to their respective stockholders; and certain internal
financial analyses and forecasts for MIT and PLD prepared by their respective
managements, including certain cost savings and operating synergies projected
by the management of MIT to result from the transaction contemplated by the
Agreement (the "Synergies"). We also have held discussions with members of the
senior management of MIT and PLD regarding the strategic rationale for, and the
potential benefits of, the transaction contemplated by the Agreement and the
past and current business operations, financial condition and future prospects
of their respective companies. In addition, we have reviewed the reported price
and trading activity for MIT Common Stock and PLD Common Stock, compared
certain financial and stock market information for MIT and PLD with similar
information for certain other companies, the securities of which are publicly
traded, reviewed the financial terms of certain recent business combinations in
the real estate industry and performed such other duties and analyses as we
considered appropriate.
 
  We have relied upon the accuracy and completeness of all of the financial and
other information reviewed by us and have assumed such accuracy and
completeness for purposes of rendering this opinion. In that regard, we have
assumed with your consent that the Synergies have been reasonably prepared on a
basis reflecting the best available judgments and estimates of the management
of MIT. In addition, we have not made an independent evaluation or appraisal of
the assets and liabilities of MIT or PLD or any of their subsidiaries and we
have not been furnished with any such evaluation or appraisal. Our advisory
services and the opinion expressed herein are provided for the information and
assistance of the Board of Directors of MIT in connection with its
consideration of the transaction contemplated by the Agreement and such opinion
does not constitute a recommendation as to how any holder of MIT Common Stock
should vote with respect to such transaction.
 
  Based upon and subject to the foregoing and based upon such other matters as
we consider relevant, it is our opinion that as of the date hereof the
Consideration to be received by the holders of MIT Common Stock is fair from a
financial point of view to the holders of MIT Common Stock.
 
                                          Very truly yours,
       
       
       
                                      C-2
<PAGE>
 
                                    PART II
 
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
Item 20. Indemnification of Directors and Officers
 
  Article 4, Section 11, of the ProLogis declaration of trust provides as
follows with respect to indemnification of Trustees:
 
    "The Trust shall indemnify and hold harmless each Trustee from and
  against all claims and liabilities, whether they proceed to judgment or are
  settled, to which such Trustee may become subject by reason of his being or
  having been a Trustee, or by reason of any action alleged to have been
  taken or omitted by him as Trustee, and shall reimburse him for all legal
  and other expenses reasonably incurred by him in connection with any such
  claim or liability, including any claim or liability arising under the
  provisions of federal or state securities laws; provided, however, that no
  Trustee shall be indemnified or reimbursed under the foregoing provisions
  in relation to any matter unless it shall have been adjudicated that his
  action or omission did not constitute willful misfeasance, bad faith or
  gross negligence in the conduct of his duties, or, unless, in the absence
  of such an adjudication, the Trust shall have received a written opinion
  from independent counsel, approved by the Trustees, to the effect that if
  the matter of willful misfeasance, bad faith or gross negligence in the
  conduct of duties had been adjudicated, it would have been adjudicated in
  favor of such Trustee. The Trust, without requiring a preliminary
  determination of the ultimate entitlement to indemnification, shall pay or
  reimburse reasonable expenses incurred by any Trustee in connection with
  any threatened, pending or completed action, suit or proceeding to which
  such Trustee is, was or at any time becomes a party or is threatened to be
  made a party, as a result directly or indirectly, of serving at any time as
  a Trustee. The rights accruing to a Trustee under these provisions shall
  not exclude any other right to which he may be lawfully entitled, nor shall
  anything herein contained restrict the right of the Trust to indemnify or
  reimburse such Trustee in any proper cause even though not specifically
  provided for herein."
 
  Article 9, Section 1 of the ProLogis declaration of trust provides as follows
with respect to the limitation of liability of Trustees and officers and
indemnification:
 
    "A Trustee or officer of the Trust shall not be liable for monetary
  damages to the Trust or its shareholders for any act or omission in the
  performance of his duties unless:
 
      (1) The Trustee or officer actually received an improper benefit in
    money, property or services in which case, such liability shall be for
    the amount of the benefit in money, property or services actually
    received;
 
      (2) The Trustee's or officer's action or failure to act was the
    result of active and deliberate dishonesty and was material to the
    cause of action being adjudicated;
 
      (3) The Trustee's or officer's action or failure to act constitutes
    willful misconduct or deliberate recklessness; or
 
      (4) Such liability to the Trust is specifically imposed upon Trustees
    or officers by statute."
 
  Article 9, Section 6 of the declaration of trust provides as follows with
respect to the indemnification of trustees and officers:
 
    "Notwithstanding any other provisions of this Declaration of Trust, the
  Trust, for the purpose of providing indemnification for its Trustees and
  officers, shall have the authority, without specific shareholder approval,
  to enter into insurance or other arrangements, with persons or entities
  which are not regularly engaged in the business of providing insurance
  coverage, to indemnify all Trustees and officers of the Trust against any
  and all liabilities and expenses incurred by them by reason of their being
  Trustees or officers of the Trust, whether or not the Trust would otherwise
  have the power under this Declaration of Trust or under Maryland law to
  indemnify such persons against such liability. Without limiting the power
  of the Trust to procure or maintain any kind of insurance or other
  arrangement, the Trust may, for the
 
                                      II-1
<PAGE>
 
  benefit of persons indemnified by it, (i) create a trust fund, (ii)
  establish any form of self-insurance, (iii) secure its indemnity obligation
  by grant of any security interest or other lien on the assets of the
  corporation, or (iv) establish a letter of credit, guaranty or surety
  arrangement. Any such insurance or other arrangement may be procured,
  maintained or established within the Trust or with any insurer or other
  person deemed appropriate by the board of trustees regardless of whether
  all or part of the stock or other securities thereof are owned in whole or
  in part by the Trust. In the absence of fraud, the judgment of the board of
  trustees as to the terms and conditions of insurance or other arrangement
  and the identity of the insurer or other person participating in any
  arrangement shall be conclusive, and such insurance or other arrangement
  shall not be subject to voidability, nor subject the Trustees approving
  such insurance or other arrangement to liability, on any ground, regardless
  of whether Trustees participating and approving such insurance or other
  arrangement shall be beneficiaries thereof."
 
  ProLogis has entered into indemnity agreements with each of its officers and
trustees which provide for reimbursement of all expenses and liabilities of
such officer or trustee, arising out of any lawsuit or claim against such
officer or trustee due to the fact that he was or is serving as an officer or
trustee, except for such liabilities and expenses (a) the payment of which is
judicially determined to be unlawful, (b) relating to claims under Section
16(b) of the Securities Exchange Act of 1934, as amended, or (c) relating to
judicially determined criminal violations. In addition, ProLogis has entered
into indemnity agreements with each of its trustees who is not also an officer
of ProLogis which provide for indemnification and advancement of expenses to
the fullest lawful extent permitted by Maryland law in connection with any
pending or completed action, suit or proceeding by reason of serving as a
trustee and ProLogis has established a trust to fund payments under the
indemnification agreements.
 
Item 21. Exhibits and Financial Statement Schedules
 
  (a) Exhibits
 
  The exhibits to this Registration Statement are listed in the Exhibit Index,
which appears immediately after the signature page and is incorporated herein
by this reference.
 
  (b) Financial Statements and Schedules
 
    Refer to Index to Pro Forma Condensed Consolidated Financial Statements
included at page F-1.
 
  (c) Reports, Opinions and Appraisals
 
  Refer to Annex B and Annex C.
 
Item 22. Undertakings
 
  (a) The undersigned Registrant hereby undertakes as follows:
 
    (1) To file, during any period in which offers or sales are being made, a
  post-effective amendment to this registration statement:
 
      A. To include any prospectus required by Section 10(a)(3) of the
    Securities Act of 1933.
 
      B. To reflect in the prospectus any facts or events arising after the
    effective date of the registration statement (or the most recent post-
    effective amendment thereof) which, individually or in the aggregate,
    represent a fundamental change in the information set forth in the
    registration statement. Notwithstanding the foregoing, any increase or
    decrease in volume of securities offered (if the total dollar value of
    securities offered would not exceed that which was registered) and any
    deviation from the low or high and of the estimated maximum offering
    range may be reflected in the form of a prospectus filed with the
    Commission pursuant to Rule 424(b) if, in the aggregate, the changes in
    volume and price represent no more than 20 percent change in the
    maximum aggregate offering price set forth in the "Calculation of
    Registration Fee" table in the effective registration statement.
 
                                      II-2
<PAGE>
 
      C. To include any material information with respect to the plan of
    distribution not previously disclosed in the registration statement or
    any material change to such information in the registration statement.
 
    (2) That, for the purpose of determining any liability under the
  Securities Act of 1933, each such post-effective amendment shall be deemed
  to be a new registration statement relating to the securities offered
  therein, and the offering of such securities at that time shall be deemed
  to be the initial bona fide offering thereof.
 
    (3) To remove from registration by means of a post-effective amendment
  any of the securities being registered which remain unsold at the
  termination of the offering.
 
  That, for purposes of determining any liability under the Securities Act of
1933, each filing of the registrant's annual report pursuant to section 13(a)
or section 15(d) of the Securities Exchange Act of 1934 (and, where applicable,
each filing of an employee benefit plan's annual report pursuant to section
15(d) of the Securities Exchange Act of 1934) that is incorporated by reference
in the registration statement shall be deemed to be a new registration
statement relating to the securities offered therein, and the offering of such
securities at that time shall be deemed to be the initial bona fide offering
thereof.
 
  That prior to any public reoffering of the securities registered hereunder
through use of a prospectus which is a part of this registration statement, by
any person or party who is deemed to be an underwriter within the meaning of
Rule 145(c), the issuer undertakes that such reoffering prospectus will contain
the information called for by the applicable registration form with respect to
reofferings by persons who may be deemed underwriters, in addition to the
information called for by the other Items of the applicable form.
 
  That every prospectus (i) that is filed pursuant to the paragraph immediately
preceding, or (ii) that purports to meet the requirements of section 10(a)(3)
of the Act and is used in connection with an offering of securities subject to
Rule 415, will be filed as a part of an amendment to the registration statement
and will not be used until such amendment is effective, and that, for purposes
of determining any liability under the Securities Act of 1933, each such post-
effective amendment shall be deemed to be a new registration statement relating
to the securities offered therein, and the offering of such securities at that
time shall be deemed to be the initial bona fide offering thereof.
 
  To respond to requests for information that is incorporated by reference into
the prospectus pursuant to Item 4, 10(b), 11, or 13 of this form, within one
business day of receipt of such request, and to send the incorporated documents
by first class mail or other equally prompt means. This includes information
contained in documents filed subsequent to the effective date of the
registration statement through the date of responding to the request.
 
  Except as permitted by General Instruction H to Form S-4 (in a transaction
not covered by General Instruction I), to supply by means of a post-effective
amendment all information concerning a transaction, and the company being
acquired involved therein, that was not the subject of and included in the
registration statement when it became effective.
 
  Insofar as indemnification for liabilities arising under the Securities Act
of 1993 may be permitted to directors, officers and controlling persons of the
Registrant pursuant to the foregoing provisions described under Item 20 above,
or otherwise, the Registrant has been advised that in the opinion of the
Securities and Exchange Commission such indemnification is against public
policy as expressed in the Securities Act of 1933 and is, therefore,
unenforceable. In the event that a claim for indemnification against such
liabilities (other than the payment by the registrant of expenses incurred or
paid by a director, officer or controlling person of the Registrant in the
successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities being
registered, the Registrant will, unless in the opinion of its counsel the
matter has been settled by controlling precedent, submit to a court of
appropriate jurisdiction the question whether such indemnification by it is
against public policy as expressed in the Securities Act of 1933 and will be
governed by the final adjudication of such issue.
 
                                      II-3
<PAGE>
 
                                   SIGNATURES
   
  Pursuant to the requirements of the Securities Act of 1933, as amended,
ProLogis has duly caused this Registration Statement to be signed on its behalf
by the undersigned, thereunto duly authorized in the City of Aurora, State of
Colorado, on February 3, 1999.     
 
                                          Prologis Trust
                                                  
                                               /s/ Edward S. Nekritz    
                                          By: _________________________________
                                                  Edward S. Nekritz 
                                                Senior Vice President     

       
  Pursuant to the requirements of the Securities Act of 1993, this Registration
Statement has been signed by the following persons in the capacities and on the
dates indicated.
                                                         
Date: February 3, 1999                                    *     
                                          -------------------------------------
                                                    Irving F. Lyons III
                                               Co-Chairman, Chief Investment
                                                          Officer
                                                        and Trustee
                                                        
Date: February 3, 1999                                    *     
                                          -------------------------------------
                                                     K. Dane Brooksher
                                               Co-Chairman, Chief Operating
                                                          Officer
                                                        and Trustee
                                                        
Date: February 3, 1999                                    *     
                                          -------------------------------------
                                                   M. Gordon Keiser, Jr.
                                                   Senior Vice President
                                               (Principal Financial Officer)
                                                        
Date: February 3, 1999                                     *     
                                          -------------------------------------
                                                      Edward F. Long
                                               Vice President and Controller
 
                                      II-4
<PAGE>
 
   
Date: February 3, 1999                                           
                                                          *     
                                          -------------------------------------
                                                     Thomas G. Wattles
                                                          Trustee
   
Date: February 3, 1999 
                                                          *     
                                          -------------------------------------
                                                    Stephen L. Feinberg
                                                          Trustee
   
Date: February 3, 1999                                          
                                                          *     
                                          -------------------------------------
                                                     Donald P. Jacobs
                                                          Trustee
                                                         
Date: February 3, 1999                                    *     
                                          -------------------------------------
                                                     William G. Myers
                                                          Trustee
   
Date: February 3, 1999 
                                                          *     
                                          -------------------------------------
                                                      John E. Robson
                                                          Trustee
       
    /s/ Edward S. Nekritz    
*By: ________________________________
        Edward S. Nekritz 
        Attorney-in-fact     
 
                                      II-5
<PAGE>
 
                                 EXHIBIT INDEX
 
<TABLE>   
 <C>     <S>
  2.1    Agreement and Plan of Merger dated November 16, 1998 (Incorporated by
         reference to exhibit 2.1 to ProLogis' Form 8-K dated November 16,
         1998)
  2.2    Amendment to Agreement and Plan Merger dated as February 3, 1999
  3.1    Amended and Restated Declaration of Trust of ProLogis (Incorporated by
         reference to exhibit 4.1 to ProLogis' Registration Statement No. 33-
         73382)
  3.2    First Certificate of Amendment of Amended and Restated Declaration of
         Trust of ProLogis (Incorporated by reference to exhibit 3.1 to
         ProLogis' Form 8-K dated June 14, 1994)
  3.3    Second Articles of Amendment of Restated Declaration of Trust of
         ProLogis (Incorporated by reference to exhibit 4.3 to ProLogis'
         Registration Statement No. 33-87306)
  3.4    Articles Supplementary relating to ProLogis' Series A Cumulative
         Redeemable Preferred Shares of Beneficial Interest (Incorporated by
         reference to exhibit 4.8 to ProLogis' Form 8-A registration statement
         relating to such shares)
  3.5    First Articles of Amendment to Articles Supplementary relating to
         ProLogis' Series A Cumulative Redeemable Preferred Shares of
         Beneficial Interest (Incorporated by reference to exhibit 10.3 to
         ProLogis' Form 10-Q for the quarter ended September 30, 1995)
  3.6    Articles Supplementary relating to ProLogis' Series B Cumulative
         Convertible Redeemable Preferred Shares of Beneficial Interest
         (Incorporated by reference to exhibit 4.1 to ProLogis' Form 8-K dated
         February 14, 1996)
  3.7    Articles Supplementary with respect to ProLogis' Series C Cumulative
         Redeemable Preferred Shares of Beneficial Interest (Incorporated by
         reference to exhibit 4.8 to ProLogis' Form 8-A dated November 13,
         1996)
  3.8    Articles Supplementary with respect to ProLogis' Series D Cumulative
         Redeemable Preferred Shares (Incorporated by reference to exhibit 4.10
         to ProLogis' Form 8-A filed on April 8, 1998)
  3.9    Form of Articles Supplementary with respect to ProLogis' Series E
         Cumulative Redeemable Preferred Shares of Beneficial Interest
  3.10   Form of Articles of Merger
  3.11   Bylaws of ProLogis (Incorporated by reference to exhibit 4.3 to
         ProLogis' Registration Statement No. 33-83208)
  4.1    Rights Agreement, dated as of December 31, 1993, between ProLogis and
         State Street Bank and Trust Company, as Rights Agent, including form
         of Rights Certificate (Incorporated by reference to exhibit 4.4 to
         ProLogis' Registration Statement No. 33-78080)
  4.2    First Amendment to Rights Amendment, dated as of February 15, 1995,
         between ProLogis, State Street Bank and Trust Company and The First
         National Bank of Boston, as successor Rights Agent (Incorporated by
         reference to exhibit 3.1 to ProLogis' Form 10-Q for the quarter ended
         September 30, 1995)
  4.3    Second Amendment to Rights Agreement, dated as of June 22, 1995,
         between ProLogis, State Street Bank and Trust Company and The First
         National Bank of Boston (Incorporated by reference to exhibit 3.1 to
         ProLogis' Form 10-Q for the quarter ended September 30, 1995)
  4.4    Form of share certificate for Common Shares of Beneficial Interest of
         ProLogis (Incorporated by reference to exhibit 4.4 to ProLogis'
         Registration Statement No. 33-73382)
  4.5    Form of share certificate for Series A Cumulative Redeemable Preferred
         Shares of Beneficial Interest of ProLogis (Incorporated by reference
         to exhibit 4.7 to ProLogis' Form 8-A registration statement relating
         to such shares)
</TABLE>    
 
 
                                      E-1
<PAGE>
 
<TABLE>   
 <C>     <S>
  4.6    8.72% Note due March 1, 2009 (Incorporated by reference to exhibit 4.7
         to ProLogis' Form 10-K for the year ended December 31, 1994)
  4.7    Form of share certificate for Series B Cumulative Convertible
         Redeemable Preferred Shares of Beneficial Interest of ProLogis
         (Incorporated by reference to exhibit 4.8 to ProLogis' Form 8-A
         registration statement relating to such shares)
  4.8    Form of share certificate for Series C Cumulative Redeemable Preferred
         Shares of Beneficial Interest of ProLogis (Incorporated by reference
         to exhibit 4.8 to ProLogis' Form 10-K for the year ended December 31,
         1996)
  4.9    9.34% Note due March 1, 2015 (Incorporated by reference to exhibit 4.8
         to ProLogis' Form 10-K for the year ended December 31, 1994)
  4.10   7.875% Note due May 15, 2009 (Incorporated by reference to exhibit 4.4
         to ProLogis' Form 8-K dated May 9, 1995)
  4.11   7.30% Note due May 15, 2001 (Incorporated by reference to exhibit 4.3
         to ProLogis' Form 8-K dated May 9, 1995)
  4.12   7.25% Note due May 15, 2000 (Incorporated by reference to exhibit 4.2
         to ProLogis' Form 8-K dated May 9, 1995)
  4.13   7.125% Note due May 15, 1998 (Incorporated by reference to exhibit 4.1
         to ProLogis' Form 8-K dated May 9, 1995)
  4.14   7.25% Note due May 15, 2002 (Incorporated by reference to exhibit 4.1
         to ProLogis' Form 10-Q for the quarter ended June 30, 1996)
  4.15   7.95% Note due May 15, 2008 (Incorporated by reference to exhibit 4.2
         to ProLogis' Form 10-Q for the quarter ended June 30, 1996)
  4.16   8.65% Note due May 15, 2016 (Incorporated by reference to exhibit 4.3
         to ProLogis' Form 10-Q for the quarter ended June 30, 1996)
  4.17   7.81% Medium-Term Notes, Series A, due February 1, 2015 (Incorporated
         by reference to exhibit 4.17 to ProLogis' Form 10-K for the year ended
         December 31, 1996)
  4.18   Indenture, dated as of March 1, 1995, between ProLogis and State
         Street Bank and Trust Company, as Trustee (Incorporated by reference
         to exhibit 4.9 to ProLogis' Form 10-K for the year ended December 31,
         1994)
  4.19   Collateral Trust Indenture, dated as of July 22, 1993, between
         Krauss/Schwartz Properties, Ltd. and NationsBank of Virginia, N.A., as
         Trustee (Incorporated by reference to exhibit 4.10 to ProLogis' Form
         10-K for the year ended December 31, 1994)
  4.20   First Supplemental Collateral Trust Indenture, dated as of October 28,
         1994, among ProLogis Limited Partnership-IV, Krauss/Schwartz
         Properties, Ltd., and NationsBank of Virginia, N.A., as Trustee
         (Incorporated by reference to exhibit 10.6 to ProLogis' Form 10-Q for
         the quarter ended September 30, 1994)
  4.21   Form of share certificate for Series D Cumulative Redeemable Preferred
         Shares of Beneficial Interest of ProLogis
  4.22   Form of share certificate for Series E Cumulative Redeemable Preferred
         Shares of Beneficial Interest of ProLogis
  5.1    Opinion of Mayer, Brown & Platt as to the validity of the shares being
         offered
  8.1    Opinion of Mayer, Brown & Platt as to certain tax matters
</TABLE>    
 
 
                                      E-2
<PAGE>
 
<TABLE>   
 <C>     <S>
  8.2    Opinion of Vinson & Elkins L.L.P. as to certain tax matters
 10.1    Amended and Restated Investor Rights Agreement among Meridian, Hunt
         Realty Acquisitions, L.P., USAA Real Estate Company, Meridian Point
         Realty Trust '83, State Street Bank and Trust Company (as Trustee for
         Ameritech Pension Trust) and OTR (an Ohio general partnership, acting
         on behalf of and as a nominee for the State Teachers Retirement Board
         of Ohio), dated as of February 23, 1996 (filed with Meridian's
         Amendment No. 1 to Registration Statement No. 333-02322 on March 25,
         1996, and incorporated herein by reference).
 10.2    Registration Rights Agreement, dated September 24, 1997, among
         Meridian, The Prudential Insurance Company of America, The Prudential
         Insurance Company of America on behalf of a single client insurance
         company separate account contained in Group Annuity Contract No.
         GA-9032, Strategic Performance Fund-II, Inc., and The Prudential
         Variable Contract Real Property Partnership (filed with the Schedule
         13D filed on October 3, 1997 by The Prudential Insurance Company of
         America, Strategic Performance Fund-II, Inc., and The Prudential
         Variable Contract Real Property Partnership, and incorporated herein
         by reference).
 10.3    Amended and Restated Registration Rights Agreement, dated September
         24, 1997, among Meridian, The Prudential Insurance Company of America
         acting for the benefit of the Chevron Separate Account, and The
         Prudential Insurance Company of America acting for the benefit of the
         Strategic Performance Fund I Separate Account (filed with the Schedule
         13D filed on October 3, 1997 by The Prudential Insurance Company of
         America, Strategic Performance Fund-II, Inc., and The Prudential
         Variable Contract Real Property Partnership, and incorporated herein
         by reference).
 10.4    Registration Rights Agreement, dated September 30, 1997, between
         Meridian and State Street Bank and Trust Company, as Trustee for
         Ameritech Pension Trust (filed with the Amendment No. 1 to Schedule
         13D filed on October 10, 1997 by Ameritech Pension Trust and
         incorporated herein by reference).
 10.5    Amended and Restated Stockholders' Agreement among Meridian, USAA Real
         Estate Company, Meridian Point Realty Trust IV Co., Meridian Point
         Realty Trust VI Co., Meridian Point Realty Trust VII Co., Meridian
         Point Realty Trust '83, Allen J. Anderson, C.E. Cornutt, Peter O.
         Hanson, Robert E. Morgan, John S. Moody, James M. Pollak, Kenneth N.
         Stensby and Lee W. Wilson, dated as of November 10, 1995 (filed with
         Meridian's Registration Statement No. 333-00018 on January 3, 1996,
         and incorporated herein by reference).
 10.6    Warrant Agreement between Meridian and the First Chicago Trust Company
         of New York, dated as of February 16, 1996 (filed with Meridian's
         Amendment No. 1 to Registration Statement No. 333-02322 on March 25,
         1996, and incorporated herein by reference).
 10.7    Form of Indemnification Agreement signed by Meridian and certain
         directors, officers, employees and agents of Meridian (filed with
         Meridian's Registration Statement No. 333-00018 on January 3, 1996,
         and incorporated herein by reference).
 10.8    Stock Purchase Agreement among Meridian, Harris Trust & Savings Bank,
         as Trustee for Ameritech Pension Trust, and OTR, on behalf of and as
         nominee for the State Teachers Retirement Board of Ohio, dated as of
         December 29, 1995 (filed with Meridian's Registration Statement No.
         333-00018 on January 3, 1996, and incorporated herein by reference).
 10.9    Third Amended and Restated Revolving Credit Agreement, dated September
         23, 1997, among (i) Meridian, (ii) BankBoston, N.A., Texas Commerce
         Bank National Association, NationsBank of Texas, N.A., Wells Fargo
         Bank, N.A., Dresdner Bank AG, First American Bank Texas, S.S.B.,
         (collectively, the "Banks"), (iii) BankBoston, N.A. as Agent for the
         Banks, (iv) Texas Commerce Bank National Association as Documentation
         Agent for the Banks, and (v) NationsBank of Texas, N.A. as Syndication
         Agent for the Banks (filed on November 14, 1997 with Meridian's Form
         10-Q for the quarter ended September 30, 1997, and incorporated herein
         by reference).
</TABLE>    
 
 
                                      E-3
<PAGE>
 
<TABLE>
 <C>     <S>
 10.10   Second Amended and Restated Guaranty of Payment and Performance, dated
         September 23, 1997, executed by MIT Unsecured L.P. (filed on November
         14, 1997 with Meridian's Form 10-Q for the quarter ended September 30,
         1997, and incorporated herein by reference).
 10.11   Form of First Amendment to Third Amended and Restated Revolving Credit
         Agreement, dated February 19, 1998, among (i) Meridian, (ii) MIT
         Unsecured L.P. and Meridian Refrigerated, Inc. (iv) BankBoston, N.A.,
         Chase Bank of Texas, National Association, NationsBank of Texas, N.A.,
         Wells Fargo Bank, N.A., Dresdner Bank AG, New York Branch and Grand
         Cayman Branch, and First American Bank Texas, S.S.B., (collectively,
         the "Banks"), (iii) BankBoston, N.A. as Agent for the Banks, (iv)
         Chase Bank of Texas, National Association as Documentation Agent for
         the Banks, and (v) NationsBank of Texas, N.A. as Syndication Agent for
         the Banks (filed as exhibit 10.22 to Meridian's Form 10-K for the year
         ended December 31, 1997, and incorporated herein by reference).
 10.12   Form of Guaranty of Payment and Performance, dated February 19, 1998,
         and signed by Meridian Refrigerated, Inc. (filed as exhibit 10.23 to
         Meridian's Form 10-K for the year ended December 31, 1997, and
         incorporated herein by reference).
 10.13   Amended and Restated Loan Administration Agreement between The
         Prudential Insurance Company of America and Meridian, IndTennco
         Limited Partnership, Metro-Sierra Limited Partnership, and Progress
         Center/Alabama Limited Partnership, dated as of February 23, 1996
         (filed on March 20, 1997 as exhibit 10.24 to Meridian's Form 10-K for
         1996, and incorporated herein by reference).
 10.14   Agreement of Limited Partnership of DFW Nine between Dallas Nine Corp.
         and Sierra Capital Realty Trust IV, dated April 15, 1987 (filed with
         Meridian's Amendment No. 1 to Registration Statement No. 333-02322 on
         March 25, 1996, and incorporated herein by reference).
 10.15   Amendment No. 1 to Agreement of Limited Partnership of DFW Nine
         between Dallas Nine Corp., Ridgelea Corp., Sierra Capital Realty Fund
         IV, and Sierra Capital Realty Trust VI, dated June 1, 1987 (filed with
         Meridian's Amendment No. 1 to Registration Statement No. 333-02322 on
         March 25, 1996, and incorporated herein by reference).
 10.16   Assignment of General Partnership Interests and Agreement regarding
         DFW Nine, between Dallas Nine Corp., Metroplex Co. (a Nevada
         corporation), Metroplex Co. (a California corporation) and DFW Nine,
         dated February, 1996 (filed with Meridian's Amendment No. 1 to
         Registration Statement No. 333-02322 on March 25, 1996, and
         incorporated herein by reference).
 10.17   Assignment of Limited Partnership Interest in MIT Unsecured L.P.
         (formerly known as "DFW Nine") between Meridian, MIT-ULP, Inc., and
         MIT Unsecured, Inc. (formerly known as "Metroplex Co."), dated
         December 31, 1996 (filed on March 20, 1997 with Meridian's Form 10-K
         for 1996, and incorporated herein by reference).
 10.18   Agreement of Limited Partnership of Progress Center/Alabama Limited
         Partnership between Pro-Sierra Corporation and Sierra Capital Realty
         Trust VII Co., dated December 3, 1987 (filed with Meridian's Amendment
         No. 1 to Registration Statement No. 333-02322 on March 25, 1996, and
         incorporated herein by reference).
 10.19   First Amendment to Agreement of Limited Partnership of Progress
         Center/Alabama Limited Partnership, dated June 29, 1990 (filed with
         Meridian's Amendment No. 1 to Registration Statement No. 333-02322 on
         March 25, 1996, and incorporated herein by reference).
 10.20   Assignment of Limited Partnership Interest in MIT Secured L.P. between
         Meridian, MIT-SLP, Inc. and MIT Secured Inc. (formerly known as
         Progress Center/Alabama Limited Partnership), dated December 31, 1996
         (filed on March 20, 1997 with Meridian's Form 10-K for 1996, and
         incorporated herein by reference).
</TABLE>
 
                                      E-4
<PAGE>
 
<TABLE>   
 <C>     <S>
 10.21   Amended and Restated Stock Purchase Agreement, dated June 12, 1997, by
         and between Meridian, as Seller, and The Prudential Insurance Company
         of America, as Purchaser, together with a summary of the economic
         terms of three additional Stock Purchase Agreements into which
         Meridian as Seller has entered with Strategic Performance Fund-II,
         Inc. as Purchaser, The Prudential Variable Contract Real Property
         Partnership as Purchaser, and The Prudential Insurance Company of
         America on behalf of a single client insurance company account
         contained in Group Annuity Contract No. GA-9032 as Purchaser (filed on
         August 13, 1997 with Meridian's Form 10-Q for the quarter ended June
         30, 1997, and incorporated herein by reference).
 10.22   Form of Severance Agreement entered into between Meridian and Allen J.
         Anderson, Dennis D. Higgs, and Milton K. Reeder (filed as exhibit
         10.55 to Meridian's Form 10-K for the year ended December 31, 1997,
         and incorporated herein by reference).
 10.23   Form of Severance Agreement entered into between Meridian and Gregory
         D. Skirving, Peter B. Harmon, Timothy B. Keith, Brian R. Barringer,
         Jaime Suarez, and Robert A. Dobbin (filed as exhibit 10.56 to
         Meridian's Form 10-K for the year ended December 31, 1997, and
         incorporated herein by reference).
 10.24   Meridian's Severance Plan, adopted February 5, 1998 (filed as exhibit
         10.57 to Meridian's Form 10-K for the year ended December 31, 1997,
         and incorporated herein by reference).
 10.25   Warrant issued to USAA Real Estate Company to purchase common stock of
         Meridian, dated February 23, 1996 (filed with Meridian's Amendment No.
         1 to Registration Statement No. 333-02322 on March 25, 1996, and
         incorporated herein by reference).
 10.26   Note Purchase Agreement among Meridian and The Travelers Insurance
         Company (I/N/O TRAL & CO.), United Services Automobile Association
         (I/N/O SALKELD & CO.), The Variable Annuity Life Insurance Company,
         The United States Life Insurance Company in the City of New York, All
         American Life Insurance Company, The Old Line Life Insurance Company
         of America, The Lincoln National Life Insurance Company, Lincoln Life
         & Annuity Company of New York, First Penn-Pacific Life Insurance
         Company (I/N/O CUDD & CO), Lincoln National Health & Casualty
         Insurance Company, Allied Life Insurance Company "B" (I/N/O GERLACH &
         CO), Sons of Norway (I/N/O VAR & CO), Aid Association for Lutherans
         (I/N/O NIMER & CO), Metropolitan Life Insurance Company, National Life
         Insurance Company, Life Insurance Company of the Southwest, Keyport
         Life Insurance Company (I/N/O BOST & CO), Union Central Life Insurance
         Company (I/N/O HARE & CO), and Pan-American Life Insurance Company,
         dated November 15, 1997 (filed as exhibit 10.66 to Meridian's Form 10-
         K for the year ended December 31, 1997, and incorporated herein by
         reference).
 10.27   Second Amendment, dated June 23, 1998, to Third Amended and Restated
         Revolving Credit Agreement, dated February 19, 1998, among (i)
         Meridian, (ii) MIT Unsecured L.P. and Meridian Refrigerated, Inc.
         (iii) BankBoston, N.A., Chase Bank of Texas, National Association,
         NationsBank of Texas, N.A., Wells Fargo Bank, N.A., Dresdner Bank AG,
         New York Branch and Grand Cayman Branch, and First American Bank
         Texas, S.S.B., (collectively, the "Banks"), (iv) BankBoston, N.A. as
         Agent for the Banks, (v) Chase Bank of Texas, National Association as
         Documentation Agent for the Banks, and (vi) NationsBank of Texas,
         N.A., as Syndication Agent for the Banks (incorporated by reference to
         exhibit 10.1 to Meridian's Form 10-Q for the quarter ended June 30,
         1998).
 10.28   Registration Rights Agreement, dated June 30, 1998, among Meridian, R.
         William Gardner, Douglas C. Gardner, Steven D. Gardner, and Todd L.
         Platt (incorporated by reference to exhibit 10.2 to Meridian's Form
         10-Q for the quarter ended June 30, 1998).
 10.29   Voting Agreement between Security Capital and Meridian, dated November
         16, 1998 (incorporated by reference to exhibit 2.2 to Meridian's Form
         8-K, dated November 18, 1998).
 12.1    Statement re: Computation of Ratio of Earnings to Combined Fixed
         Charges and Preferred Share Dividends
</TABLE>    
 
                                      E-5
<PAGE>
 
<TABLE>   
 <C>     <S>
 15.1+   Letter from Arthur Andersen LPP, Chicago, Illinois, re unaudited
         interim financial information
 23.1    Consent of Arthur Andersen LLP, Chicago, Illinois
 23.2    Consent of Arthur Andersen LLP, San Francisco, California
 23.3    Consent of Mayer, Brown & Platt (included in the opinion filed as
         Exhibit 5.1 and 8.1)
 23.4    Consent of Vinson & Elkins L.L.P. (included in the opinion filed as
         Exhibit 8.2)
 23.5    Consent of Merrill & Lynch & Co.
 23.6*   Consent of Goldman, Sachs & Co.
 24.1+   Power of Attorney
 99.1    Form of ProLogis Proxy
 99.2+   Form of Meridian Proxy
</TABLE>    
- --------
*  To be filed by amendment.
   
+Previously filed.     
 
                                      E-6

<PAGE>
 
                                                                     Exhibit 2.2

                   AMENDMENT TO AGREEMENT AND PLAN OF MERGER
                       
     AMENDMENT TO AGREEMENT AND PLAN OF MERGER, dated as of February 3, 1999
(this "Amendment"), between ProLogis Trust, a Maryland real estate investment
trust (the "Company"), and Meridian Industrial Trust, Inc., a Maryland
corporation ("MIT"). Capitalized terms, unless defined herein, shall have the
meaning assigned to them in the Merger Agreement (defined below).

     WHEREAS, the Company and MIT have entered into that certain Agreement and
Plan of Merger, dated as of November 16, 1998 (the "Merger Agreement"); and

     WHEREAS, the Company and MIT desire to amend the Merger Agreement as set
forth herein.

     NOW, THEREFORE, for good and valuable consideration, the sufficiency of
which is hereby acknowledged, the parties to this Amendment hereby amend the
Merger Agreement (in accordance with Section 7.3 of the Merger Agreement) as
follows:

     1.   Exhibit A to the Merger Agreement is hereby amended and restated in
its entirety as set forth on Exhibit A hereto.

     2.   Exhibit F to the Merger Agreement is hereby amended and restated in
its entirety as set forth on Exhibit B hereto.

     3.   Schedule 3.2(b) to the Merger Agreement is hereby amended and restated
in its entirety as set forth on Schedule 3 hereto.

     4.   The following provisions of Article II of the Merger Agreement are
hereby amended as follows:

          (a) The last sentence of Article II, Section 2.1(b) is hereby amended
     and restated in its entirety as follows:

          "All such shares of MIT Common Stock and MIT Series D Preferred Stock,
          when so converted, shall no longer be outstanding and shall
          automatically be canceled and retired and shall cease to exist, and
          each holder of a certificate representing any such shares and each
          holder of any uncertificated shares shall cease to have any rights
          with respect thereto, except the right to receive the applicable
          Merger Consideration and any unpaid dividends and distributions that
          such holder has the right to receive pursuant to Section 2.2(c), to be
          issued or paid in consideration therefor upon the surrender of such
          certificates or exchange of such uncertificated shares in accordance
          with Section 2.2, without interest."

          (b) In the first sentence of Article II, Section 2.2(a), the second
     parenthetical phrase is hereby amended and restated in its entirety as
     follows:
<PAGE>
 
          "(such cash and such shares of Company Common Stock and Company
          Cumulative Redeemable Preferred Stock, together with any dividends or
          distributions with respect to all shares of Company Common Stock and
          Company Cumulative Convertible Preferred Stock issuable pursuant to
          Section 2.1, being hereinafter referred to as the "Exchange Fund")"

          (c)  Article II, Section 2.2(b) is hereby amended and restated in its
     entirety as follows:

          "    (b)  Exchange Procedures.

                    (i) As soon as reasonably practicable after the Effective
               Time, the Exchange Agent shall mail to each holder of record of a
               certificate or certificates which, immediately prior to the
               Effective Time, represented outstanding shares of MIT Common
               Stock or MIT Series D Preferred Stock (each, a "Certificate"),
               which holder's shares of MIT Common Stock or MIT Series D
               Preferred Stock were converted into the right to receive the
               amount of Cash Consideration, if any, and the number of shares of
               Company Common Stock or Company Cumulative Redeemable Preferred
               Stock, as the case may be, set forth in Section 2.1: (i) a letter
               of transmittal ("Letter of Transmittal") which shall specify that
               delivery shall be effected and risk of loss and title to the
               Certificates shall pass only upon delivery of the Certificates to
               the Exchange Agent, and shall be in such form and have such other
               provisions as the Surviving Entity may reasonably specify; and
               (ii) instructions for use in effecting the surrender of the
               Certificates in exchange for certificates representing shares of
               Company Common Stock or Company Cumulative Redeemable Preferred
               Stock, as the case may be. Upon surrender of a Certificate for
               cancellation to the Exchange Agent, together with the Letter of
               Transmittal, duly executed, and any other documents reasonably
               required by the Surviving Entity or the Exchange Agent, (A) the
               holder of a Certificate formerly representing shares of (1) MIT
               Common Stock shall be entitled to receive in exchange therefor
               the amount of Cash Consideration, if any, and a certificate
               representing that number of shares of Company Common Stock, or
               (2) MIT Series D Preferred Stock shall be entitled to receive a
               certificate representing that number of shares of Company
               Cumulative Redeemable Preferred Stock, which such holder has the
               right to receive pursuant to the provisions of this Article II,
               and any unpaid dividends and distributions that such holder has
               the right to receive pursuant to Section 2.2(c); and (B) the
               Certificate so surrendered shall forthwith be canceled. In the
               event of a transfer of ownership of MIT Common Stock or MIT
               Series D Preferred Stock, which is not registered in the transfer
               records of MIT, the appropriate

                                       2
<PAGE>
 
               amount of Cash Consideration, if any, and a certificate
               representing the appropriate number of shares of Company Common
               Stock or Company Cumulative Redeemable Preferred Stock, as the
               case may be, may be paid and issued to a transferee if the
               Certificate representing such MIT Common Stock or MIT Series D
               Preferred Stock is presented to the Exchange Agent properly
               endorsed or accompanied by appropriate stock powers and otherwise
               in proper form for transfer and accompanied by all documents
               required to evidence and effect such transfer and by evidence
               that any applicable stock transfer taxes have been paid. Until
               surrendered as contemplated by this Section 2.2, each Certificate
               shall be deemed at any time after the Effective Time to represent
               only the right to receive upon such surrender the appropriate
               amount of Cash Consideration, in the case of a certificate
               representing MIT Common Stock, and the certificate representing
               shares of Company Common Stock or Company Cumulative Redeemable
               Preferred Stock, as the case may be, and any unpaid dividends and
               distributions that such holder has the right to receive pursuant
               to Section 2.2(c). The Exchange Agent shall not be entitled to
               vote or exercise any rights of ownership with respect to Company
               Common Stock or Company Cumulative Redeemable Preferred Stock, as
               the case may be, held by it from time to time hereunder, except
               that it shall receive and hold all dividends or other
               distributions paid or distributed with respect thereto for the
               account of persons entitled thereto.

                    (ii) As soon as reasonably practicable after the Effective
               Time, the Exchange Agent shall mail to each holder of record of
               uncertificated shares of MIT Common Stock or MIT Series D
               Preferred Stock, which holder's shares of MIT Common Stock or MIT
               Series D Preferred Stock were converted into the right to receive
               the amount of Cash Consideration, if any, and the number of
               shares of Company Common Stock or Company Cumulative Redeemable
               Preferred Stock, as the case may be, set forth in Section 2.1, if
               requested by the Company: (i) a letter of transmittal which shall
               specify that delivery of any initial transaction statement shall
               be effected and risk of loss and title to the shares represented
               thereby shall pass only upon delivery of the letter of
               transmittal to the Exchange Agent, and shall be in such form and
               have such other provisions as the Surviving Entity may reasonably
               specify; and (ii) instructions for completing such letter of
               transmittal to effect the exchange of such uncertificated shares
               of MIT Common Stock or MIT Series D Preferred Stock into
               uncertificated shares of Company Common Stock or Company
               Cumulative Redeemable Preferred Stock, as the case may be. Upon
               valid delivery of a letter of

                                       3
<PAGE>
 
               transmittal to the Exchange Agent, together with any other
               documents reasonably required by the Surviving Entity or the
               Exchange Agent, or if no letter of transmittal is requested by
               the Company, at the Effective Time, (A) the holder of
               uncertificated shares of (1) MIT Common Stock shall be entitled
               to receive in exchange therefor the amount of Cash Consideration,
               if any, and an initial transaction statement representing that
               number of shares of Company Common Stock, or (2) MIT Series D
               Preferred Stock shall be entitled to receive an initial
               transaction statement representing that number of shares of
               Company Cumulative Redeemable Preferred Stock, which such holder
               has the right to receive pursuant to the provisions of this
               Article II, and any unpaid dividends and distributions that such
               holder has the right to receive pursuant to Section 2.2(c); and
               (B) the transaction statement on the books and records of MIT
               shall forthwith be canceled. Until exchanged as contemplated by
               this Section 2.2, each uncertificated share of MIT Common Stock
               and MIT Series D Preferred Stock shall be deemed at any time
               after the Effective Time to represent only the right to receive
               upon such exchange the appropriate amount of Cash Consideration,
               in the case of uncertificated shares of MIT Common Stock, and an
               initial transaction statement representing uncertificated shares
               of Company Common Stock or Company Cumulative Redeemable
               Preferred Stock, as the case may be, and any unpaid dividends and
               distributions that such holder has the right to receive pursuant
               to Section 2.2(c). The Exchange Agent shall not be entitled to
               vote or exercise any rights of ownership with respect to Company
               Common Stock or Company Cumulative Redeemable Preferred Stock, as
               the case may be, held by it from time to time hereunder, except
               that it shall receive and hold all dividends or other
               distributions paid or distributed with respect thereto for the
               account of persons entitled thereto."

          (d)  Article II, Section 2.2(c) is hereby amended and restated in its
     entirety as follows:

          "    (c)  Distributions with Respect to Unexchanged Shares.  No
          dividends or other distributions with respect to Company Common Stock
          or Company Cumulative Redeemable Preferred Stock, as the case may be,
          declared or made after the Effective Time with a record date after the
          Effective Time shall be paid to the holder of any unsurrendered
          Certificate or any unexchanged uncertificated share with respect to
          the right to receive shares of Company Common Stock or Company
          Cumulative Redeemable Preferred Stock, as the case may be, represented
          thereby until the holder of such Certificate or uncertificated share
          shall surrender such Certificate or rights in respect of such
          uncertificated share.  Subject to the effect of 

                                       4
<PAGE>
 
          applicable laws, following surrender of any such Certificate or
          exchange of any such uncertificated share, there shall be paid to the
          holder thereof, without interest: (i) at the time of such surrender,
          the amount of dividends or other distributions with a record date
          after the Effective Time theretofore paid with respect to such shares
          of Company Common Stock or Company Cumulative Redeemable Preferred
          Stock, as the case may be; and (ii) at the appropriate payment date,
          the amount of dividends or other distributions with a record date
          after the Effective Time but prior to such surrender and a payment
          date subsequent to such surrender payable with respect to such shares
          of Company Common Stock or Company Cumulative Redeemable Preferred
          Stock, as the case may be."

          (e)  In the first sentence of Article II, Section 2.2(d), the
     parenthetical phrase "(including any additional cash paid pursuant to
     Section 2.2(e))" is hereby deleted.

          (f)  The last sentence of Article II, Section 2.2(d), is hereby
     amended and restated in its entirety as follows:

          "If, after the Effective Time, Certificates or rights in respect of
          uncertificated shares of MIT Common Stock or MIT Series D Preferred
          Stock are presented to the Surviving Entity for any reason, they shall
          be canceled and exchanged as provided in this Article II."

          (g)  Article II, Section 2.2(e) is hereby eliminated in its entirety
     and replaced by the following:

               "(e) Intentionally Omitted."

          (h)  Article II, Section 2.2(f) is hereby amended and restated in its
     entirety by the following:

          "    (f)  Termination of Exchange Fund.  Any portion of the Exchange
          Fund made available to the Exchange Agent that remains undistributed
          to the former stockholders of MIT on the first anniversary of the
          Effective Time shall be delivered to the Surviving Entity, upon
          demand, and any stockholders of MIT who have not theretofore received
          any applicable Cash Consideration, Company Common Stock or Company
          Cumulative Redeemable Preferred Stock, as the case may be, and any
          dividends or distributions to which they are entitled under this
          Article II shall thereafter look only to the Surviving Entity for
          payment of their claims with respect thereto and only as general
          creditors thereof."

                                       5
<PAGE>
 
          (j)  In the first sentence of Article II, Section 2.2(g), the phrase
     "or any cash in lieu of fractional shares of Company Common Stock" is
     hereby deleted.

          (j)  Article II, Section 2.2(h) is hereby amended and restated in its
     entirety as follows:

          "    (h)  Lost, Stolen, or Destroyed Certificates.  If any Certificate
          shall have been lost, stolen or destroyed, upon the making of an
          affidavit of that fact by the person claiming such Certificate to be
          lost, stolen or destroyed and, if required by the Surviving Entity,
          the posting by such person of a bond in such reasonable amount as the
          Surviving Entity may direct as indemnity against any claim that may be
          made against it with respect to such Certificate, the Exchange Agent
          shall issue in exchange for such lost, stolen or destroyed Certificate
          the appropriate amount of Cash Consideration payable in respect of
          shares of MIT Common Stock and a certificate representing that number
          of shares of Company Common Stock or Company Cumulative Redeemable
          Preferred Stock, as the case may be, which such holder has the right
          to receive pursuant to the provisions of this Article II, and any
          unpaid dividends and distributions that such holder has the right to
          receive pursuant to Section 2.2(c)."

          (k)  Article II, Section 2.2(i) is hereby amended and restated in its
     entirety as follows:

          "    (i)  Withholding of Tax. The Surviving Entity shall be entitled
          to deduct and withhold from the Merger Consideration and dividends or
          distributions otherwise payable pursuant to this Agreement to any
          holder of a Certificate or holder of uncertificated shares of MIT
          Common Stock or MIT Series D Preferred Stock, such amount as the
          Surviving Entity (or any affiliate thereof) or the Exchange Agent is
          required to deduct and withhold with respect to the making of such
          payment under federal, state, local or foreign tax law. To the extent
          that amounts are so withheld by the Surviving Entity, such withheld
          amounts shall be treated for all purposes of this Agreement as having
          been paid to the former holder of a Certificate or holder of
          uncertificated shares of MIT Common Stock or MIT Series D Preferred
          Stock or other stockholders of MIT in respect of which such deduction
          and withholding was made by the Surviving Entity."

     5.   Article III, Section 3.2(s) of the Merger Agreement is hereby amended
and restated in its entirety as follows:

          "    (s)  Vote Required.  The affirmative vote of at least two-thirds
          of the outstanding shares of Company Common Stock entitled to vote
          with respect to the approval of this Agreement and the transactions
          contemplated

                                       6
<PAGE>
 
          hereby, including the issuance of Company Common Stock in the Merger,
          is the only vote of the holders of any class or series of the
          Company's shares of beneficial interest necessary to approve this
          Agreement and the transactions contemplated hereby."

     6.   Article V, Section 5.9 paragraphs (a), (b) and (c) of the Merger
Agreement are hereby amended and restated in their entirety as follows:

          "5.9  Employee Matters.  (a) The Company and MIT agree that MIT shall
     terminate the employment of all employees of MIT immediately prior to the
     Effective Time and the Company and MIT agree that such terminations shall
     be deemed to have occurred following a change of control for the purposes
     of any applicable employment or severance agreements or severance plans.

          (b) After the Effective Time, the Surviving Entity shall provide (or
     shall continue to provide) coverage under the Consolidated Omnibus Budget
     Reconciliation Act of 1985, as amended ("COBRA"), to all former MIT
     employees who constitute qualified beneficiaries under COBRA and their
     eligible dependents in accordance with the requirements of COBRA.

          (c) In the event the Surviving Entity hires any former employee of MIT
     or its Subsidiaries on or after the Effective Time, the Surviving Entity
     shall determine the terms and conditions of such employment, provided that
     the Surviving Entity will provide such employees with the same benefits
     that are provided to similarly situated employees of the Company and its
     Subsidiaries.

     7.   Article VI, Section 6.1(b) of the Merger Agreement is hereby amended
and restated in its entirety as follows:

          "(b)  Company Stockholder Approval.  This Agreement and the Merger
     (including the issuance of Company Common Stock and all other actions
     contemplated hereby that require the approval of the Company's
     stockholders) shall have been approved and adopted by the affirmative vote
     of the holders of two-thirds of the outstanding shares of Company Common
     Stock entitled to vote thereon as is required under the Company's
     Declaration of Trust, as amended."

     8.   Counterparts.  This Amendment may be executed in two or more
counterparts, all of which shall be considered one and the same agreement and
shall become effective when two or more counterparts have been signed by each of
the parties and delivered to the other parties, it being understood that all
parties need not sign the same counterpart.

                                       7
<PAGE>
 
     9.   Governing Law.  This Amendment shall be governed by and construed in
accordance with the laws of the State of Maryland, without giving effect to the
principles of conflicts of law thereof.

     10.  Entire Agreement.  This Amendment, together with Merger Agreement,
constitute the entire agreement among the parties with respect to the subject
matter hereto and thereto.  Unless specifically modified within this Amendment,
all provisions in the Merger Agreement shall remain in full force and effect,
without alteration.


              [THE REMAINDER OF THIS PAGE IS INTENTIONALLY BLANK]

                                       8
<PAGE>
 
     IN WITNESS WHEREOF, each party has caused this Amendment to be signed by
its respective officer thereunto duly authorized, all as of the date first
written above.


                              PROLOGIS TRUST, a Maryland real estate investment
                              trust


                              By:   /s/ Edward S. Nekritz
                                    -----------------------------
                                    Name: Edward S. Nekritz
                                    Title:Senior Vice President



                              MERIDIAN INDUSTRIAL TRUST, INC., a Maryland
                              corporation



                              By:   /s/ Allen J. Anderson
                                    -----------------------------
                                    Name: Allen J. Anderson
                                    Title:Chairman and Chief Executive Officer

                
                                       9

<PAGE>
 
                                                                    Exhibit 3.09



                                ProLogis Trust


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

                                    Form of
                      Articles Supplementary Classifying
                  2,000,000 Shares of Beneficial Interest as
    Series E Cumulative Redeemable Preferred Shares of Beneficial Interest


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

                      Dated as of _______________, 199__
<PAGE>
 
                               TABLE OF CONTENTS
                                        

                                                                         Page

Section 1.     Number of Shares and Designation.......................... -1-

Section 2.     Definitions............................................... -1-

Section 3.     Dividends................................................. -4-

Section 4.     Liquidation Rights........................................ -6-

Section 5.     Conversion................................................ -7-

Section 6.     Redemption at the Option of the Trust..................... -7-

Section 7.     Shares to be Retired...................................... -9-

Section 9.     Voting....................................................-10-

Section 10.    Record Holders............................................-12-

Section 11.    Sinking Fund..............................................-12-

Section 12.    Ownership Limitation......................................-12-


                                       i
<PAGE>
 
                                 ProLogis Trust
                                _______________

                                    Form of
                       Articles Supplementary Classifying
                   2,000,000 Shares of Beneficial Interest as
     Series E Cumulative Redeemable Preferred Shares of Beneficial Interest
                                _______________

     ProLogis Trust, a Maryland real estate investment trust (the "Trust"),
hereby certifies to the State Department of Assessments and Taxation of Maryland
that:

     FIRST:  Pursuant to Section 8-203(b) of the Corporations and Associations
Article of the Annotated Code of Maryland and the authority granted to and
vested in the Board of Trustees of the Trust by Article II, Section 1 of the
Amended and Restated Declaration of Trust of the Trust, as amended and
supplemented (the "Charter"), the Board of Trustees at a meeting duly convened
and held on ____________, 199__, in accordance with the Agreement and Plan of
Merger between the Trust and Meridian Industrial Trust, Inc. dated November 16,
1998 (the "Merger Agreement"), adopted resolutions classifying 2,000,000
unissued shares of beneficial interest of the Trust as Series E Cumulative
Redeemable Preferred Shares of Beneficial Interest and setting the preferences,
conversion and other rights, voting powers, restrictions, limitations as to
dividends and other distributions, qualifications, and terms and conditions of
redemption thereof.

          Section 1.  Number of Shares and Designation.  This class of preferred
shares of beneficial interest shall be designated as Series E Cumulative
Redeemable Preferred Shares of Beneficial Interest, par value $0.01 per share
(the "Series E Preferred Stock"). The number of preferred shares constituting
the Series E Preferred Stock is 2,000,000.

          Section 2.  Definitions.  The following terms shall have the
following meanings herein:

          (a)  "Beneficial Ownership" shall mean ownership of Equity Stock by a
Person, whether the interest in the shares of Equity Stock is held directly or
indirectly (including by a nominee), and shall include interests that would be
treated as owned through the application of Section 544 of the Code, as modified
by Section 856(h)(1)(B) of the Code. The terms "Beneficial Owner," "Beneficially
Owns" and "Beneficially Owned" shall have correlative meanings. For example, if
a corporation is the actual beneficial owner of Equity Stock, the shares will be
treated as Beneficially Owned by that corporation (due to its direct ownership
of the shares), and the shareholders of that corporation will Beneficially Own
their respective proportionate interests in those shares (due to their deemed
ownership under Code Section 544(a)(1)), and interests in the
<PAGE>
 
same shares may also be treated as Beneficially Owned by others, depending upon
the identity of, and relationships between, the shareholders and those related
to the shareholders.

          (b)  "Board of Trustees" shall mean the Board of Trustees of the Trust
or any committee authorized by the Board of Trustees to perform any of its
responsibilities with respect to the Series E Preferred Stock.

          (c)  "Business Day" shall mean any day other than a Saturday, Sunday
or day on which state or federally chartered banking institutions in New York
City, New York are not required to be open.

          (d)  "Call Date" shall have the meaning set forth in Section 6(b).

          (e)  "Capital Gains Amount" shall have the meaning set forth in
Section 3(d).

          (f)  "Charter" means the Amended and Restated Declaration of Trust, as
amended and supplemented, of the Trust, as the same may be amended or
supplemented hereafter from time to time.

          (g)  "Code" shall have the meaning set forth in Section 12.

          (h)  "Common Stock" shall mean the common shares of beneficial 
interest of the Trust, par value $0.01 per share.

          (i)  "Constructive Ownership" shall mean ownership of Equity Stock by
a Person, whether the interest in the shares of Equity Stock is held directly or
indirectly (including by a nominee), and shall include interests that would be
treated as owned through the application of Section 318(a) of the Code, as
modified by Section 856(d)(5) of the Code. The terms "Constructive Owner,"
"Constructively Owns" and "Constructively Owned" shall have correlative
meanings. For example, if a corporation is the actual beneficial owner of Equity
Stock, the shares will be treated as Constructively Owned by that corporation
(due to its direct ownership of the shares), and the 10% or more shareholders of
that corporation will Constructively Own their respective proportionate
interests in those shares (due to their deemed ownership under Code Section
318(a)(2)(C) as modified by Code Section 856(d)(5)), and interests in the same
shares may also be treated as Constructively Owned by others, depending upon the
identity of, and relationships between, the shareholders and those related to
the shareholders.

          (j)  "Dividend Payment Date" shall mean the last calendar day (or, if
such day is not a Business Day, the next Business Day thereafter) of each
January, April, July and October, commencing on April 30, 1999.

                                      -2-
<PAGE>
 
          (k)  "Dividend Periods" shall mean quarterly dividend periods
commencing on February 1, May 1, August 1 and November 1 of each year and ending
on April 30, July 31, October 31 and January 31 of such year, respectively
(other than the initial Dividend Period, which shall be deemed to commence on
_________ and end on April 30, 1999 and other than the Dividend Period during
which any shares of Series E Preferred Stock shall be redeemed pursuant to
Section 6, which shall end on and include the Call Date with respect to the
shares of Series E Preferred Stock being redeemed).

          (l)  "Equity Stock" shall mean shares of beneficial interest that are
either Preferred Stock or Common Stock.

          (m)  "Excepted Holder" shall mean a shareholder of the Trust for whom
an exemption from the Ownership Limit is granted by the Board of Trustees
pursuant to Article 2, Section 7(e) of the Charter, and then only to the extent
of such exemption (the "Excepted Holder Limit").

          (n)  "Excepted Holder Limit" shall have the meaning set forth in
Section 2(m).

          (o)  "Exempted Person" shall have the meaning set forth in Section 12.

          (p)  "Fully Junior Stock" shall mean the Common Stock and any other
class or series of shares of beneficial interest of the Trust now or hereafter
issued and outstanding over which the Series E Preferred Stock has preference or
priority in both the payment of dividends and the distribution of assets on any
liquidation, dissolution or winding up of the Trust.

          (q)  "Issue Date" shall mean the first date on which the pertinent
shares of the Series E Preferred Stock are issued pursuant to the Merger
Agreement.

          (r)  "Junior Stock" shall mean the Common Stock and any other class or
series of shares of beneficial interest of the Trust now or hereafter issued and
outstanding over which the Series E Preferred Stock has preference or priority
in the payment of dividends or in the distribution of assets on any liquidation,
dissolution or winding up of the Trust.

          (s)  "Ownership Limit" shall mean nine and eight tenths percent (9.8%)
of the lesser of the number or value of the outstanding shares of any class or
series of the Equity Stock of the Trust. The number and value of outstanding
shares of any class or series of the Equity Stock of the Trust shall be
determined by the Board of Trustees in good faith, which determination shall be
conclusive.

          (t)  "Parity Stock" shall have the meaning set forth in Section 8(b).

                                      -3-
<PAGE>
 
          (u)  "Person" shall mean an individual, corporation, partnership,
limited liability company, estate, trust (including a trust qualified under
Section 401(a) or 501(c)(17) of the Code), a portion of a trust permanently set
aside for or to be used exclusively for the purposes described in Section 642(c)
of the Code, association, private foundation within the meaning of Section
509(a) of the Code, joint stock company, or other entity and also includes a
group as that term is used for purposes of Section 13(d)(3) of the Securities
Exchange Act of 1934, as amended, and any group to which a particular Excepted
Holder Limit may be applicable.

          (v)  "Preferred Stock" shall mean the preferred shares of beneficial
interest of the Trust, par value $0.01 per share.

          (w)  "Series E Preferred Stock" shall have the meaning set forth in
Section 1.

          (x)  "set apart for payment" shall be deemed to include, without any
action other than the following; the recording by the Trust in its accounting
ledgers of any accounting or bookkeeping entry which indicates, pursuant to an
authorization of dividends or other distribution by the Board of Trustees, the
allocation of funds to be so paid on any series or class of shares of beneficial
interest of the Trust; provided, however, that if any funds for any class or
series of Junior Stock or Fully Junior Stock or any class or series of shares of
beneficial interest ranking on a parity with the Series E Preferred Stock as to
the payment of dividends are placed in a separate account of the Trust or
delivered to a disbursing, paying or other similar agent, then "set apart for
payment" with respect to the Series E Preferred Stock shall mean placing such
funds in such separate account or delivering such funds to a disbursing, paying
or other similar agent.

          (y)  "Total Dividends" shall have the meaning set forth in Section
3(d).

          (z)  "Transfer Agent" means Bank Boston N.A., Canton, Massachusetts,
or such other agent or agents of the Trust as may be designated by the Board of
Trustees or their designee as the transfer agent, registrar and dividend
disbursing agent for the Series E Preferred Stock.

          Section 3.  Dividends.

          (a)  Subject to the provisions of Section 8 hereof, the holders of
Series E Preferred Stock shall be entitled to receive, when, as and if
authorized by the Board of Trustees out of funds legally available for that
purpose, cumulative, preferential dividends payable in cash at the rate of 8.75%
of the liquidation preference per annum per share (equal to $2.1875 per annum
per share). Such dividends shall be deemed to begin to accrue and shall be fully
cumulative from _____________, whether or not in any Dividend Period or Periods
there shall be funds of the Trust legally available for the payment of such
dividends, and shall be payable quarterly, when, as and if authorized by the
Board of Trustees, in arrears on Dividend Payment Dates, commencing on the first
Dividend Payment Date after the Issue Date. Such dividends shall be payable in
arrears to the holders of record of Series E Preferred Stock, as they appear on
the share records of the Trust at the close of

                                      -4-
<PAGE>
 
business on the record date, not more than 50 nor less than 10 days preceding
the relevant Dividend Payment Date, as shall be fixed by the Board of Trustees.
Accrued and unpaid dividends for any past Dividend Periods may be authorized and
paid on any date and for such interim periods, without reference to any regular
Dividend Payment Date, to holders of record on such date, not exceeding 50 days
preceding the payment date thereof, as may be fixed by the Board of Trustees.
Any dividend payment made on the Series E Preferred Stock shall first be
credited against the earliest accrued but unpaid dividend due with respect to
the Series E Preferred Stock which remains payable.

          (b)  The amount of dividends referred to in Section 3(a) payable for
each full Dividend Period for the Series E Preferred Stock shall be computed by
dividing the annual dividend rate by four, except that the amount of dividends
payable for the initial Dividend Period, and for any Dividend Period shorter
than a full Dividend Period, for the Series E Preferred Stock shall be computed
on the basis of the actual number of days in such Dividend Period. Holders of
Series E Preferred Stock shall not be entitled to any dividends, whether payable
in cash, property or shares of beneficial interest, in excess of cumulative
dividends, as herein provided, on the Series E Preferred Stock. No interest, or
sum of money in lieu of interest, shall be payable in respect of any dividend
payment or payments on the Series E Preferred Stock that may be in arrears.

          (c)  Dividends on Series E Preferred Stock will accrue whether or not
the Trust has earnings, whether or not there are funds legally available for the
payment of such dividends and whether or not such dividends are authorized.

          (d)  If, for any taxable year, the Trust elects to designate as
"capital gain dividends" (as defined in Section 857 of the Code), any portion
(the "Capital Gains Amount") of the total dividends (within the meaning of the
Code) paid or made available for the year to holders of all classes of
beneficial interest (the "Total Dividends"), then the portion of the Capital
Gains Amount that shall be allocable to holders of Series E Preferred Stock
shall be in the same proportion that the dividends paid or made available to the
holders of Series E Preferred Stock for the year bears to the Total Dividends.

          (e)  So long as any shares of Series E Preferred Stock are
outstanding, no dividends, except as described in the immediately following
sentence, shall be authorized or paid or set apart for payment on any class or
series of Parity Stock for any period unless full cumulative dividends have been
or contemporaneously are authorized and paid or authorized and a sum sufficient
for the payment thereof set apart for such payment on any outstanding shares of
the Series E Preferred Stock for all Dividend Periods terminating on or prior to
the dividend payment date for such class or series of Parity Stock. If dividends
are not paid in full or a sum sufficient for such payment is not set apart upon
the Series E Preferred Stock, as aforesaid, all dividends authorized upon Series
E Preferred Stock and all dividends authorized upon any other class or series of
Parity Stock shall be authorized ratably in proportion to the respective amounts
of dividends accumulated and unpaid on the Series E Preferred Stock and
accumulated and unpaid on such Parity Stock.

                                      -5-
<PAGE>
 
          (f)  So long as any shares of Series E Preferred Stock are
outstanding, no dividends (other than dividends or distributions paid solely in
shares of, or options, warrants or rights to subscribe for or purchase shares
of, Fully Junior Stock) shall be authorized or paid or set apart for payment or
other distribution authorized or made upon Junior Stock or Fully Junior Stock,
nor shall any Junior Stock or Fully Junior Stock be redeemed, purchased or
otherwise acquired (other than a redemption, purchase or other acquisition of
shares of Common Stock made for purposes of any employee incentive or benefit
plan of the Trust or any subsidiary) for any consideration (or any moneys be
paid to or made available for a sinking fund for the redemption of any such
shares) by the Trust, directly or indirectly (except by conversion into or
exchange for shares of Fully Junior Stock), unless in each case the full
cumulative dividends on all outstanding shares of Series E Preferred Stock and
any other Parity Stock of the Trust shall have been or contemporaneously are
authorized and paid or authorized and set apart for payment for all past
Dividend Periods with respect to the Series E Preferred Stock and all past
dividend periods with respect to such Parity Stock and sufficient funds shall
have been or contemporaneously are authorized and paid or authorized and set
apart for the payment of the dividend for the current Dividend Period with
respect to the Series E Preferred Stock and the current dividend period with
respect to such Parity Stock.

          (g)  No dividends on Series E Preferred Stock shall be authorized by
the Board of Trustees or paid or set apart for payment by the Trust at such time
as the terms and provisions of any agreement of the Trust, including any
agreement relating to its indebtedness, prohibits such declaration, payment or
setting apart for payment or provides that such authorization, payment or
setting apart for payment would constitute a breach thereof or a default
thereunder, or if such authorization or payment shall be restricted or
prohibited by law.

          Section 4.  Liquidation Rights.

          (a)  In the event of any liquidation, dissolution or winding up of the
Trust, whether voluntary or involuntary, before any payment or distribution of
the assets of the Trust (whether capital or surplus) shall be made to or set
apart for the holders of Junior Stock and subject to the provisions of Section 8
hereof, the holders of the Series E Preferred Stock shall be entitled to receive
Twenty Five Dollars ($25.00) per share of Series E Preferred Stock plus an
amount equal to all dividends (whether or not earned or authorized) accrued and
unpaid thereon to the date of final distribution to such holders; but such
holders shall not be entitled to any further payment. If, upon any liquidation,
dissolution or winding up of the Trust, the assets of the Trust, or proceeds
thereof, distributable among the holders of the Series E Preferred Stock shall
be insufficient to pay in full the preferential amount aforesaid and liquidating
payments on any other shares of any class or series of Parity Stock, then such
assets, or the proceeds thereof, shall be distributed among the holders of the
Series E Preferred Stock and any such other Parity Stock ratably in accordance
with the respective amounts that would be payable on such Series E Preferred
Stock and any such other Parity Stock if all amounts payable thereon were paid
in full. For the purposes of this Section 4, a consolidation or merger of the
Trust with one or more corporations, real estate investment trusts, or

                                      -6-
<PAGE>
 
other entities, a sale, lease or transfer of all or substantially all of the
Trust's assets, or a statutory share exchange shall not be deemed to be a
liquidation, dissolution or winding up, voluntary or involuntary, of the Trust.

          (b)  Subject to the rights of the holders of shares of any series or
class or classes of shares of beneficial interest ranking on a parity with or
prior to the Series E Preferred Stock upon liquidation, dissolution or winding
up, upon any liquidation, dissolution or winding up of the Trust, after payment
shall have been made in full to the holders of the Series E Preferred Stock, as
provided in this Section 4, any other series or class or classes of Junior Stock
or Fully Junior Stock shall, subject to the respective terms and provisions (if
any) applying thereto, be entitled to receive any and all assets remaining to be
paid or distributed, and the holders of the Series E Preferred Stock shall not
be entitled to share therein.

          (c)  No distribution with respect to any series or class or classes of
shares of beneficial interest (other than upon voluntary or involuntary
liquidation) by dividend, redemption or other acquisition of shares or
otherwise, may be made if, after giving effect to such distribution:

               (i)  The Trust would not be able to pay its indebtedness as the
          indebtedness becomes due in the usual course of business; or

               (ii)  The Trust's total assets would be less than the sum of its
          total liabilities plus the amounts that would be needed, if the Trust
          were to be dissolved at the time of the distribution, to satisfy the
          preferential rights upon dissolution of holders of the Series E
          Preferred Stock, but only if, and to the extent that, the addition of
          such amounts would not prohibit a distribution necessary, as
          determined by the Board of Trustees, to maintain the Trust's status as
          a "real estate investment trust" under the Code.

          Section 5.  Conversion.  The shares of Series E Preferred Stock are
not convertible or exchangeable for any other property or securities of the
Trust.

          Section 6.  Redemption at the Option of the Trust.

          (a)  The Series E Preferred Stock shall not be redeemable by the Trust
prior to June 30, 2003. On and after that date, the Trust, at its option, may
redeem the Series E Preferred Stock, in whole or in part at any time or from
time to time, at a redemption price of Twenty Five Dollars ($25.00) per share of
Series E Preferred Stock, plus the amounts indicated in Section 6(b).

          (b)  Upon any redemption of the Series E Preferred Stock pursuant to
this Section 6, the Trust shall pay all accrued and unpaid dividends, if any,
thereon ending on or prior to the date of such redemption (the "Call Date"),
without interest. If the Call Date falls after a dividend payment record date
and prior to the corresponding Dividend Payment Date, then each holder of Series
E Preferred Stock at the close of business on such dividend payment record date

                                      -7-
<PAGE>
 
shall be entitled to the dividend payable on such shares on the corresponding
Dividend Payment Date notwithstanding the redemption of such shares before such
Dividend Payment Date. Except as provided above, the Trust shall make no payment
or allowance for unpaid dividends, whether or not in arrears, on shares of
Series E Preferred Stock called for redemption.

          (c)  If full cumulative dividends on the Series E Preferred Stock and
any other class or series of Parity Stock of the Trust have not been authorized
and paid or authorized and set apart for payment, the Series E Preferred Stock
or Parity Stock may not be redeemed under this Section 6 in part and the Trust
may not purchase or acquire the Series E Preferred Stock or any Parity Stock,
otherwise than pursuant to a purchase or exchange offer made on the same terms
to all holders of Series E Preferred Stock or Parity Stock, as the case may be.

          (d)  Notice of the redemption of any Series E Preferred Stock under
this Section 6 shall be mailed by first-class mail to each holder of record of
Series E Preferred Stock to be redeemed at the address of each such holder as
shown on the Trust's records, not less than 30 nor more than 90 days prior to
the Call Date. Neither the failure to mail any notice required by this Section
6(d), nor any defect therein or in the mailing thereof, to any particular
holder, shall affect the sufficiency of the notice or the validity of the
proceedings for redemption with respect to the other holders. Any notice which
was mailed in the manner herein provided shall be conclusively presumed to have
been duly given on the date mailed whether or not the holder receives the
notice. Each such mailed notice shall state, as appropriate: (1) the Call Date;
(2) the number of shares of Series E Preferred Stock to be redeemed and, if
fewer than all the shares held by such holder are to be redeemed, the number of
such shares to be redeemed from such holder; (3) the redemption price per share;
(4) the place or places at which certificates for such shares are to be
surrendered; and (5) that dividends on the shares to be redeemed shall cease to
accrue on such Call Date except as otherwise provided herein. Notice having been
mailed as aforesaid, from and after the Call Date (unless the Trust shall fail
to make available an amount of cash necessary to effect such redemption), (i)
except as otherwise provided herein, dividends on the Series E Preferred Stock
so called for redemption shall cease to accrue, (ii) shares of such Series E
Preferred Stock shall no longer be deemed to be outstanding, and (iii) all
rights of the holders thereof as holders of Series E Preferred Stock of the
Trust shall cease (except the right to receive cash payable upon such
redemption, without interest thereon, upon surrender and endorsement of their
certificates if so required and to receive any dividends payable thereon). The
Trust's obligation to provide cash in accordance with the preceding sentence
shall be deemed fulfilled if, on or before the Call Date, the Trust shall
deposit with a bank or trust company (which may be an affiliate of the Trust)
that has an office in the Borough of Manhattan, City of New York, and that has,
or is an affiliate of a bank or trust company that has, capital and surplus of
at least $50,000,000, the amount of cash necessary for such redemption, in
trust, with irrevocable instructions that such cash be applied to the redemption
of the Series E Preferred Stock so called for redemption. No interest shall
accrue for the benefit of the holders of Series E Preferred Stock to be redeemed
on any cash so set aside by the Trust. Subject to applicable escheat laws, any
such cash unclaimed at the end of two years from the Call Date shall

                                      -8-
<PAGE>
 
revert to the general funds of the Trust, after which reversion the holders of
such shares so called for redemption shall look only to the general funds of the
Trust for the payment of such cash.

          As promptly as practicable after the surrender in accordance with said
notice of the certificates for any such shares so redeemed (properly endorsed or
assigned for transfer, if the Trust shall so require and if the notice shall so
state), such shares shall be exchanged for any cash (without interest thereon)
for which such shares have been redeemed. If fewer than all the outstanding
shares of Series E Preferred Stock are to redeemed, shares to be redeemed shall
be selected by the Trust from outstanding shares of Series E Preferred Stock not
previously called for redemption by lot or pro rata (as nearly as may be) or by
any other method determined by the Trust in its sole discretion to be equitable.
If fewer than all the shares of Series E Preferred Stock represented by any
certificate are redeemed, then new certificates representing the unredeemed
shares shall be issued without cost to the holder thereof.

          Section 7.  Shares to be Retired.  All shares of Series E Preferred
Stock which shall have been issued and reacquired in any manner by the Trust
shall be restored to the status of authorized but unissued shares of beneficial
interest of the Trust, without designation as to class or series.

          Section 8.  Ranking.  Any class or series of shares of beneficial
interest of the Trust shall be deemed to rank:

          (a)  prior to the Series E Preferred Stock, as to the payment of
dividends and as to distribution of assets upon liquidation, dissolution or
winding up, if the holders of such class or series shall be entitled to the
receipt of dividends or of amounts distributable upon liquidation, dissolution
or winding up, as the case may be, in preference or priority to the holders of
Series E Preferred Stock;

          (b)  on a parity with the Series E Preferred Stock, as to the payment
of dividends and as to distribution of assets upon liquidation, dissolution or
winding up, whether or not the dividend rates, dividend payment dates or
redemption or liquidation prices per share thereof be different from those of
the Series E Preferred Stock, if the holders of such class or series of shares
of stock and the Series E Preferred Stock shall be entitled to the receipt of
dividends and of amounts distributable upon liquidation, dissolution or winding
up in proportion to their respective amounts of accrued and unpaid dividends per
share or liquidation preferences, without preference or priority one over the
other, which shall include, without limitation, shares of Preferred Stock
classified by the Trust as Series A Cumulative Redeemable Preferred Shares,
Series B Cumulative Convertible Preferred Shares, Series C Cumulative Redeemable
Preferred Shares and Series D Cumulative Redeemable Preferred Shares ("Parity
Stock");

                                      -9-
<PAGE>
 
          (c) junior to the Series E Preferred Stock, as to the payment of
dividends or as to the distribution of assets upon liquidation, dissolution or
winding up, as the case may be, if such shares of beneficial interest shall be
Junior Stock; and

          (d) junior to the Series E Preferred Stock, as to the payment of
dividends and as to the distribution of assets upon liquidation, dissolution or
winding up, if such shares of beneficial interest shall be Fully Junior Stock.

           Section 9.    Voting.
                         ------ 

          (a) On any matter on which the holders of Series E Preferred Stock are
entitled to vote (as expressly provided herein or as may be required by law),
including any action by written consent, each share of Series E Preferred Stock
shall have one vote per share, except that when shares of any other series of
Preferred Stock shall have the right to vote with the Series E Preferred Stock
as a single class on any matter, then the Series E Preferred Stock and such
other series shall have with respect to such matters one vote per $25.00 of
stated liquidation preference.  With respect to each matter on which the holders
of Series E Preferred Stock are entitled to vote, the holder of each share of
Series E Preferred Stock may designate a number of proxies equal to the number
of votes to which the share is entitled, with each such proxy having the right
to vote a whole number of votes on behalf of such holder.

          (b) If and whenever dividends payable for six or more quarterly
periods on the Series E Preferred Stock or any series or class of Parity Stock
shall be in arrears (which shall, with respect to any such quarterly dividend,
mean that any such dividend has not been paid in full), whether or not
authorized and whether or not such periods are consecutive, the number of
trustees then constituting the Board of Trustees shall be increased by two, and
the holders of Series E Preferred Stock, together with the holders of shares of
every other series of Parity Stock, voting as a single class regardless of
series, shall be entitled to elect the two additional trustees to serve on the
Board of Trustees at any annual meeting of shareholders or special meeting held
in place thereof, or at a special meeting of the holders of the Series E
Preferred Stock and the Parity Stock called as hereinafter provided.  Whenever
all arrears in dividends on the Series E Preferred Stock and the Parity Stock
then outstanding shall have been paid and dividends thereon for the current
quarterly dividend period shall have been paid or declared and set apart for
payment, then the right of the holders of the Series E Preferred Stock and the
Parity Stock to elect such additional two trustees shall immediately cease (but
subject always to the same provision for the vesting of such voting rights in
the case of any similar future arrearages in six quarterly dividends), and the
terms of office of all persons so elected as trustees by the holders of the
Series E Preferred Stock and the Parity Stock shall immediately terminate and
the number of the Board of Trustees shall be reduced accordingly.  At any time
after such voting rights shall have been so vested in the holders of Series E
Preferred Stock and the Parity Stock, the secretary of the Trust may, and upon
the written request of any holder of Series E Preferred Stock (addressed to the
secretary at the principal office of the Trust) shall, call a special meeting of
the holders of the Series E Preferred Stock and of the Parity 


                                     -10-
<PAGE>
 
Stock for the election of the two trustees to be elected by them as herein
provided, such call to be made by notice similar to that provided in the Bylaws
of the Trust for a special meeting of the shareholders or as required by law. If
any such special meeting required to be called as above provided shall not be
called by the secretary within 20 days after receipt of any such request, then
any holder of Series E Preferred Stock may call such meeting, upon the notice
above provided, and for that purpose shall have access to the stock records of
the Trust. The trustees elected at any such special meeting shall hold office
until the next annual meeting of the shareholders or special meeting held in
lieu thereof if such office shall not have previously terminated as above
provided. If any vacancy shall occur among the trustees elected by the holders
of the Series E Preferred Stock and the Parity Stock, a successor shall be
elected by the Board of Trustees, upon the nomination of the then-remaining
trustee elected by the holders of the Series E Preferred Stock and the Parity
Stock or the successor of such remaining trustee, to serve until the next annual
meeting of the shareholders or special meeting held in place thereof if such
office shall not have previously terminated as provided above.

          (c) So long as any shares of Series E Preferred Stock are outstanding,
in addition to any other vote or consent of shareholders required by law or by
the Charter of the Trust, the affirmative vote of the holders of at least 
66-2/3% of the Series E Preferred Stock and the Parity Stock, at the time
outstanding, acting as a single class regardless of series, given in person or
by proxy, either in writing without a meeting or by vote at any meeting called
for the purpose, shall be necessary for effecting or validating:

               (i) Any amendment, alteration or repeal of any of the provisions
     of the Charter of the Trust (including these Articles Supplementary) that
     materially and adversely affects the voting powers, rights or preferences
     of the holders of the Series E Preferred Stock or the Parity Stock;
     provided, however, that the amendment of the provisions of the Charter of
     the Trust so as to authorize or create or to increase the authorized amount
     of shares of any class of any Fully Junior Stock or Junior Stock that are
     not senior in any respect to the Series E Preferred Stock, or any shares of
     any class ranking on a parity with the Series E Preferred Stock or the
     Parity Stock, shall not be deemed to materially adversely affect the voting
     powers, rights or preferences of the holders of Series E Preferred Stock;
     and provided further, that if any such amendment, alteration or repeal
     would materially and adversely affect any voting powers, rights or
     preferences of the Series E  Preferred Stock or another series of Parity
     Stock that are not enjoyed by some or all of the other series otherwise
     entitled to vote in accordance herewith, the affirmative vote of at least
     66-2/3% of the votes entitled to be cast by the holders of all series
     similarly affected, similarly given, shall be required in lieu of the
     affirmative vote of at least 66-2/3% of the votes entitled to be cast by
     the holders of the Series E Preferred Stock and the Parity Stock otherwise
     entitled to vote in accordance herewith;

               (ii  A share exchange that affects the Series E Preferred Stock,
     a consolidation with or merger of the Trust into another entity, or a
     consolidation with or 

                                     -11-
<PAGE>
 
     merger of another entity into the Trust, unless in each such case each
     share of Series E Preferred Stock (i) shall remain outstanding without a
     material and adverse change to its terms and rights or (ii) shall be
     converted into or exchanged for preferred shares of the surviving entity
     having preferences, conversion or other rights, voting powers,
     restrictions, limitations as to dividends, qualifications and terms or
     conditions of redemption thereof identical to that of a share of Series E
     Preferred Stock (except for changes that do not materially and adversely
     affect the holders of the Series E Preferred Stock); or

               (iii)  The authorization or creation of, or the increase in the
     authorized amount of, any shares of any class, or any security convertible
     into shares of any class, ranking prior to the Series E Preferred Stock in
     the distribution of assets on any liquidation, dissolution or winding up of
     the Trust or in the payment of dividends; provided, however, that no such
     vote of the holders of Series E Preferred Stock shall be required if, at or
     prior to the time when such amendment, alteration or repeal is to take
     effect, or when the issuance of any such shares or convertible securities
     is to be made, as the case may be, provision is made for the redemption of
     all shares of Series E Preferred Stock at the time outstanding.

          (d) Except as otherwise required by applicable law or as set forth
herein, the Series E Preferred Stock shall not have any relative, participating,
optional or other special voting rights and powers, and the consent of the
holders thereof shall not be required for the taking of any corporate action.

          Section 10.    Record Holders.  The Trust and the Transfer Agent may
deem and treat the record holder of any Series E Preferred Stock as the true and
lawful owner thereof for all purposes, and neither the Trust nor the Transfer
Agent shall be affected by any notice to the contrary.

          Section 11.    Sinking Fund.  The Series E Preferred Stock shall not
be entitled to the benefits of any retirement or sinking fund.

          Section 12.    Ownership Limitation.  Pursuant to the authority
granted to the Board of Trustees under Article 2, Section 7(e) of the Charter,
any Person who is not an individual within the meaning of Section 542(a)(2) of
the Internal Revenue Code of 1986, as amended (the "Code"), as modified by
Section 856(h)(3) of the Code (referred to as an "Exempted Person"), that
acquires Beneficial Ownership of shares of Series E Preferred Stock shall not be
subject to the Ownership Limit with respect to the Series E Preferred Stock,
subject to the condition that no Person who is an individual within the meaning
of Section 542(a)(2) of the Code, as modified by Section 856(h)(3) of the Code
and who Beneficially Owns any of the shares of Series E Preferred Stock owned
directly by the Exempted Person at any time Beneficially Owns an amount of
Series E Preferred Stock in excess of the Ownership Limit and that such Person
does not own, actually or Constructively, an interest in a tenant of the Company
(or a tenant of any entity owned or controlled by the Company in whole or in
part) that would cause the Company to own, actually or Constructively, more than


                                     -12-
<PAGE>
 
a 9.8% interest (as set forth in Section 856(h)(3) of the Code) in such tenant.
Each Exempted Person who acquires shares of Series E Preferred Stock in reliance
upon the conditional exemption set forth in the preceding sentence represents
and warrants to the Trust as a condition of such reliance that each of the
conditions set forth therein is satisfied at the time such Exempted Person
acquired the shares of Series E Preferred Stock and will be satisfied throughout
the period during which such Exempted Person Beneficially Owns the shares of
Series E Preferred Stock.  Each Exempted Person who acquires shares of Series E
Preferred Stock in reliance upon the conditional exemption set forth in the
second preceding sentence further agrees that in the event either of the
conditions set forth in the second preceding sentence is at any time not
satisfied, the exemption granted under this Section 12 no longer shall apply to
such Exempted Person and all of the shares of Series E Preferred Stock
Beneficially Owned by such Exempted Person shall be subject to all of the
restrictions and remedies set forth in Article 2, Section 2 of the Charter
(including, without limitation, the remedies set forth in Article 2, Section
7(d) of the Charter).

     SECOND:  The Series E Preferred Stock has been classified by the Board of
Trustees under the authority contained in Article 2, Section 1 of the Charter.

     THIRD:  These Articles Supplementary have been approved by the Board of
Trustees in the manner and by the votes required by law.

     FOURTH:  The undersigned each acknowledges these Articles Supplementary to
be the act of the Trust and further, as to all matters or facts required to be
verified under oath, each of the undersigned acknowledges that to the best of
his acknowledge, information and belief, these matters and facts are true in all
material respects and that this statement is made under the penalties of
perjury.

                 [Remainder of page intentionally left blank.]






                                     -13-
<PAGE>
 
   IN WITNESS WHEREOF, the Trust has caused these Articles Supplementary to be
signed in its name and on its behalf by one of its Vice Presidents and attested
to by its Secretary on _____________, 199__.



                                    PROLOGIS TRUST



                                    By:_________________________________________

                                    Name:_______________________________________
                                         Vice President


                                    ATTEST:

                                    ____________________________________________
                                    Name:_______________________________________
                                         Secretary




                                     -14-

<PAGE>
 
                                                                    Exhibit 3.10
 
                              ARTICLES OF MERGER

                                    Merging

                        MERIDIAN INDUSTRIAL TRUST, INC.
                   (a corporation of the State of Maryland)
                                     Into
                                PROLOGIS TRUST
           (a real estate investment trust of the State of Maryland)


     MERIDIAN INDUSTRIAL TRUST, INC., a corporation organized and existing under
the laws of the State of Maryland ("Meridian"), and PROLOGIS TRUST, a real
estate investment trust organized and existing under the laws of the State of
Maryland, which shall be the surviving entity ("ProLogis"), agree that Meridian
shall be merged with and into ProLogis. The terms and conditions of the merger
and the mode of carrying the same into effect are as herein set forth in these
Articles of Merger.

     FIRST:  The parties to these Articles of Merger are ProLogis, a real estate
investment trust organized and existing under the laws of the State of Maryland,
and Meridian, a corporation organized and existing under the laws of the State
of Maryland.

     SECOND:  Meridian shall be merged with and into ProLogis in accordance with
the Corporations and Associations Article of the Annotated Code of Maryland (the
"Maryland Code") and ProLogis shall survive the merger (the "Surviving Entity").
At the Effective Time (as defined below) of the merger, the separate existence
of Meridian shall cease in accordance with the provisions of the Maryland Code.
From and after the Effective Time, the Surviving Entity shall continue its
existence as a real estate investment trust under the Maryland Code, shall
succeed to all of the properties, liabilities and other assets and shall be
subject to all of the liabilities and obligations of Meridian without further
action by either of the parties hereto, and will continue to be governed by the
laws of the State of Maryland, including the Maryland Code. At the Effective
Time, the declaration of trust and bylaws of ProLogis in effect immediately
prior to the Effective Time shall become the declaration of trust and bylaws of
the Surviving Entity. At the Effective Time, the trustees and officers in office
immediately prior to the Effective Time shall be the trustees and officers of
the Surviving Entity, and such persons shall hold such positions until their
respective successors are duly elected or appointed and qualified or until their
earlier death, resignation or removal, in accordance with the declaration of
trust and bylaws of the Surviving Entity.

     THIRD:  The merger shall be effective as of 12:01 a.m. on March 30, 1999
(the "Effective Time").
<PAGE>
 
     FOURTH:  The resident agent and office of ProLogis is The Prentice-Hall
Corporation System, Maryland, located at 11 East Chase Street, Baltimore,
Maryland 21202. The principal office of ProLogis is located at 14100 East 35th
Place, Aurora, Colorado 80011. The resident agent and office of Meridian is
CSC--Lawyers Incorporating Service Company, 11 East Chase Street, Baltimore,
Maryland 21202. The principal office of Meridian is located at 455 Market
Street, 17th Floor, San Francisco, California 94105. Neither Meridian nor
ProLogis owns any interest in land in any county in the State of Maryland.

     FIFTH:  The terms and conditions of the transaction set forth in these
Articles of Merger were advised, authorized and approved by each party to these
Articles of Merger in the manner and by the vote required by Meridian's articles
of incorporation or ProLogis' declaration of trust, as the case may be, and the
laws of the State of Maryland.

     SIXTH:  The merger was duly (a) advised by the board of directors of
Meridian by the adoption of a resolution declaring that the merger set forth in
these Articles of Merger was advisable on substantially the terms and conditions
set forth or referred to in the resolution and directing that the proposed
merger be submitted for consideration at a special meeting of the shareholders
of Meridian and (b) approved by the stockholders of Meridian by the vote
required by its articles of incorporation and the Maryland Code.

     SEVENTH:  The merger was duly (a) advised by the board of trustees of
ProLogis by the adoption of a resolution declaring that the merger set forth in
these Articles of Merger was advisable on substantially the terms and conditions
set forth or referred to in the resolution and directing that the proposed
merger be submitted for consideration at a special meeting of the shareholders
of ProLogis and (b) approved by the shareholders of ProLogis by the vote
required by its declaration of trust and the Maryland Code.

     EIGHTH:  The declaration of trust of the Surviving Entity will not be
amended as a result of the Merger.

     NINTH:  The total number of shares of beneficial interest of all classes
which ProLogis has authority to issue is two hundred thirty million
(230,000,000) shares of beneficial interest, of the par value of one cent
($0.01) each, all such shares having an aggregate par value of two million three
hundred thousand dollars ($2,300,000). Of such shares of beneficial interest,
five million four hundred thousand (5,400,000) shares have been classified as
Series A Cumulative Redeemable Preferred Shares of Beneficial Interest, eight
million fifty thousand (8,050,000) shares have been classified as Series B
Cumulative Convertible Preferred Shares of Beneficial Interest, two million
(2,000,000) shares have been classified as Series C Cumulative Redeemable
Preferred Shares of Beneficial Interest, ten million (10,000,000) shares have
been classified as Series D Cumulative Redeemable Preferred Shares of Beneficial
Interest, two million (2,000,000) shares have been classified as Series E
Cumulative Redeemable Preferred Shares of Beneficial Interest ("ProLogis New
Preferred Shares") and two million three hundred thousand (2,300,000) shares
have been classified as Series A Junior Participating Preferred Shares of
Beneficial Interest.

                                       2
<PAGE>
 
     Meridian has the authority to issue two hundred million (200,000,000)
shares of the par value of one one-thousandth of a dollar ($0.001) each, all
such shares having an aggregate par value of two hundred thousand dollars
($200,000), of which twenty-five million (25,000,000) shares are shares of
preferred stock. Of the twenty-five million shares of preferred stock, two
million two hundred seventy-two thousand seven hundred seventy-two shares
(2,272,772) have been classified as Series B Convertible Preferred Stock, two
million (2,000,000) have been classified as Series D Cumulative Redeemable
Preferred Stock and one hundred fifty thousand (150,000) shares have been
classified as Series C Junior Participating Preferred Stock.

     TENTH:  As of the Effective Time, by virtue of the Merger and without any
action on the part of ProLogis, Meridian, or any holder of any of the following
securities:

          (a)  Cancellation of Treasury Stock and ProLogis-Owned Meridian
Capital Stock.  Each share of the common stock, $0.01 par value per share, of
Meridian ("Meridian Common Stock"), together with the rights (the "Meridian
Rights") attached thereto to purchase Series C Junior Participating Preferred
Stock of Meridian (the "Meridian Junior Preferred Stock") issued pursuant to the
Rights Agreement, dated as of March 12, 1998, between Meridian and First Chicago
Trust Company of New York, as Rights Agent (as it may be amended), that is owned
by Meridian or any subsidiary of Meridian, and each share of Meridian Common
Stock (with the associated Meridian Rights) that is owned by ProLogis or any
subsidiary of ProLogis shall automatically be canceled and retired and shall
cease to exist, and no consideration shall be delivered or deliverable in
exchange therefor. Each share of Series D Cumulative Redeemable Preferred Stock
of Meridian ("Meridian Series D Preferred Stock") that is owned by Meridian or
any subsidiary of Meridian, and each share of Meridian Series D Preferred Stock
that is owned by ProLogis or any subsidiary of ProLogis shall automatically be
canceled and retired and shall cease to exist, and no consideration shall be
delivered or deliverable in exchange therefor.

          (b)  Conversion of Meridian Common Stock.  Subject to Article
ELEVENTH, each issued and outstanding share of Meridian Common Stock (with the
associated Meridian Rights), other than shares canceled pursuant to paragraph
(a) of this Article, shall be converted into the right to receive (1) one and
one-tenth (1.10) (the "Conversion Number") of a validly issued, fully paid, and
nonassessable common share of beneficial interest, $0.01 par value per share, of
ProLogis ("ProLogis Common Shares"), together with the rights (the "ProLogis
Rights") attached thereto to purchase Series A Junior Participating Preferred
Shares of Beneficial Interest of ProLogis issued pursuant to the Rights
Agreement, dated as of December 31, 1993 between ProLogis and State Street Bank
and Trust Company, as Rights Agent (as amended), and (2) $_________ (the "Cash
Consideration"). The consideration to be issued to the holders of Meridian
Common Stock is referred to herein as the "Merger Consideration."

          (c)  Conversion of Meridian Series D Preferred Stock.  Subject to
Article ELEVENTH, each issued and outstanding share of Meridian Series D
Preferred Stock, other than shares canceled pursuant to paragraph (a) of this
Article, shall be converted into the right to receive one validly issued, fully
paid, and nonassessable ProLogis New Preferred Share.

                                       3
<PAGE>
 
          (d) Cancellation and Retirement of Meridian Capital Stock.  All shares
of Meridian Common Stock (with the associated Meridian Rights and any shares of
Meridian Junior Preferred Stock issuable upon exercise thereof) converted into
the right to receive the Merger Consideration pursuant to paragraph (b) of this
Article shall no longer be outstanding and shall automatically be canceled and
retired and shall cease to exist, and each holder of a certificate or other
right representing any such shares of Meridian Common Stock (with the associated
Meridian Rights) shall cease to have any rights with respect thereto, except the
right to receive the Merger Consideration in accordance with paragraph (b) of
this Article, upon surrender of such certificate or other right in accordance
with Article ELEVENTH.  As of the Effective Time, all shares of Meridian Series
D Preferred Stock converted into the right to receive ProLogis New Preferred
Shares pursuant to paragraph (c) of this Article shall no longer be outstanding
and shall automatically be canceled and retired and shall cease to exist, and
each holder of a certificate representing any such shares of Meridian Series D
Preferred Stock shall cease to have any rights with respect thereto, except the
right to receive ProLogis New Preferred Shares in accordance with paragraph (c)
of this Article upon surrender of such certificate in accordance with Article
ELEVENTH.
                                  
          (e) Conversion of Meridian Stock Options.  At the Effective Time, each
option granted by Meridian to purchase shares of Meridian Common Stock (a
"Meridian Stock Option") shall become, notwithstanding anything in the Meridian
Second Amended and Restated Employee and Director Incentive Stock Plan (the
"Meridian Stock Plan") or any agreement governing Meridian Stock Options to the
contrary, fully exercisable and vested as of the Effective Time and shall remain
outstanding and be assumed by the Surviving Entity.  Each such option shall be
deemed to constitute an option to acquire, on the same terms and conditions as
were applicable under such Meridian Stock Option, a number of ProLogis Common
Shares equal to the number of shares of Meridian Common Stock purchasable
pursuant to such Meridian Stock Option, multiplied by the Conversion Number
(plus the amount of Cash Consideration, if any, payable with respect to the
number of shares of Meridian Common Stock issuable pursuant to such Meridian
Stock Option immediately prior to the Effective Time), at a price per share
equal to the per-share exercise price for the shares of Meridian Common Stock
purchasable pursuant to such Meridian Stock Option divided by the Conversion
Number; provided, however, that in the case of any option to which Section 421
of the Internal Revenue Code of 1986, as amended (the "Code") applies by reason
of its qualification under any of Sections 422 through 424 of the Code, the
option price, the number of shares purchasable pursuant to such option and the
terms and conditions of exercise of such option shall be determined in order to
comply with Section 424(a) of the Code; and provided further, that, unless
otherwise provided in the applicable Meridian Stock Plan or Meridian Stock
Option, the number of ProLogis Common Shares that may be purchased upon exercise
of such Meridian Stock Option shall not include any fractional share and, upon
exercise of such Meridian Stock Option, a cash payment shall be made for any
fractional share based upon the closing price of a ProLogis Common Share on the
Exchange on the trading day immediately preceding the date of exercise.
Notwithstanding the terms of any Meridian Stock Option or the Meridian Stock
Plan, each Meridian Stock Option shall be exercisable, and shall not expire or
otherwise terminate, until the earlier to occur of (i) the fifth anniversary of
the closing of the merger and (ii) the date on which such Meridian Stock Option

                                       4
<PAGE>
 
would otherwise expire if it were to remain outstanding for the longest period
of time permitted by the agreement governing such Meridian Stock Option without
regard to any termination of employment provisions therein.
                                    
     ELEVENTH:

          (a) Exchange Agent.  As of the Effective Time, ProLogis shall deposit
with a bank or trust company designated by ProLogis and reasonably acceptable to
Meridian (the "Exchange Agent"), for the benefit of the holders of shares of
Meridian Common Stock and Meridian Series D Preferred Stock, as applicable, for
exchange in accordance with this Article ELEVENTH, through the Exchange Agent,
cash in an amount sufficient to pay the aggregate Cash Consideration, if any,
and certificates representing the ProLogis Common Shares and ProLogis New
Preferred Shares (such cash and such ProLogis Common Shares and ProLogis New
Preferred Shares, together with any dividends or distributions with respect
thereto, being hereinafter referred to as the "Exchange Fund"), issuable
pursuant to Article TENTH in exchange for outstanding shares of Meridian Common
Stock and Meridian Series D Preferred Stock.  The Exchange Agent shall, pursuant
to irrevocable instructions, deliver the Cash Consideration, if any, the
ProLogis Common Shares and ProLogis New Preferred Shares contemplated to be paid
and issued pursuant to Article TENTH out of the Exchange Fund.  The Exchange
Fund shall not be used for any other purpose.

          (b) Exchange Procedures.  (i) As soon as reasonably practicable after
the Effective Time, the Exchange Agent shall mail to each holder of record of a
certificate or certificates which, immediately prior to the Effective Time,
represented outstanding shares of Meridian Common Stock or Meridian Series D
Preferred Stock (each, a "Certificate"), which holder's shares of Meridian
Common Stock or Meridian Series D Preferred Stock were converted into the right
to receive the amount of Cash Consideration, if any, and the number of ProLogis
Common Shares or ProLogis New Preferred Shares, as the case may be, in
accordance with Article TENTH:  a letter of transmittal ("Letter of
Transmittal") which shall specify that delivery shall be effected and risk of
loss and title to the Certificates shall pass only upon delivery of the
Certificates to the Exchange Agent, and shall be in such form and have such
other provisions as the Surviving Entity may reasonably specify; and
instructions for use in effecting the surrender of the Certificates in exchange
for certificates representing ProLogis Common Shares or ProLogis New Preferred
Shares, as the case may be.  Upon surrender of a Certificate for cancellation to
the Exchange Agent, together with the Letter of Transmittal, duly executed, and
any other documents reasonably required by the Surviving Entity or the Exchange
Agent, (A) the holder of a Certificate formerly representing shares of (1)
Meridian Common Stock shall be entitled to receive in exchange therefor the
amount of Cash Consideration, if any, and a certificate representing that number
of ProLogis Common Shares, or (2) Meridian Series D Preferred Stock shall be
entitled to receive a certificate representing that number of ProLogis New
Preferred Shares, which such holder has the right to receive pursuant to the
provisions of Article TENTH, and any unpaid dividends and distributions that
such holder has the right to receive in accordance with this Article ELEVENTH;
and  the Certificate so surrendered shall forthwith be canceled. In the event of
a transfer of ownership of Meridian Common Stock or Meridian Series D Preferred
Stock, which is not registered in the transfer records of Meridian, the
appropriate amount of Cash Consideration, if any, and a certificate representing
the appropriate number of ProLogis Common Shares or ProLogis New Preferred
Shares, as the case may be, may be paid and issued to a transferee if the
Certificate representing such Meridian Common Stock or Meridian Series D

                                       5
<PAGE>
 
Preferred Stock is presented to the Exchange Agent properly endorsed or
accompanied by appropriate stock powers and otherwise in proper form for
transfer and accompanied by all documents required to evidence and effect such
transfer and by evidence that any applicable stock transfer taxes have been
paid.  Until surrendered as contemplated by this Article ELEVENTH, each
Certificate shall be deemed at any time after the Effective Time to represent
only the right to receive upon such surrender the appropriate amount of Cash
Consideration, if any, in the case of a certificate representing Meridian Common
Stock, and the certificate representing ProLogis Common Shares or ProLogis New
Preferred Shares, as the case may be, and any unpaid dividends and distributions
that such holder has the right to receive in accordance with this Article
ELEVENTH. The Exchange Agent shall not be entitled to vote or exercise any
rights of ownership with respect to ProLogis Common Shares or ProLogis New
Preferred Shares, as the case may be, held by it from time to time hereunder,
except that it shall receive and hold all dividends or other distributions paid
or distributed with respect thereto for the account of persons entitled thereto.
                     
          (ii)  As soon as reasonably practicable after the Effective Time, the
Exchange Agent shall mail to each holder of record of uncertificated shares of
Meridian Common Stock or Meridian Series D Preferred Stock, which holder's
shares of Meridian Common Stock or Meridian Series D Preferred Stock were
converted into the right to receive the amount of Cash Consideration, if any,
and the number of ProLogis Common Shares or ProLogis New Preferred Shares, as
the case may be, set forth in Article TENTH, if requested by ProLogis: (i) a
letter of transmittal which shall specify that delivery of any initial
transaction statement shall be effected and risk of loss and title to the shares
represented thereby shall pass only upon delivery of the letter of transmittal
to the Exchange Agent, and shall be in such form and have such other provisions
as the Surviving Entity may reasonably specify; and (ii) instructions for
completing such letter of transmittal to effect the exchange of such
uncertificated shares of Meridian Common Stock or Meridian Series D Preferred
Stock into uncertificated ProLogis Common Shares or ProLogis New Preferred
Shares, as the case may be.  Upon valid delivery of a letter of transmittal to
the Exchange Agent, together with any other documents reasonably required by the
Surviving Entity or the Exchange Agent, or if no letter of transmittal is
requested by ProLogis, at the Effective Time,  (A) the holder of uncertificated
shares of (1) Meridian Common Stock shall be entitled to receive in exchange
therefor the amount of Cash Consideration, if any, and an initial transaction
statement representing that number of ProLogis Common Shares, or (2) Meridian
Series D Preferred Stock shall be entitled to receive an initial transaction
statement representing that number of ProLogis New Preferred Shares, which such
holder has the right to receive in accordance with Article TENTH, and any unpaid
dividends and distributions that such holder has the right to receive in
accordance with this Article ELEVENTH; and (B) the transaction statement on the
books and records of Meridian shall forthwith be canceled.  Until exchanged as
contemplated by this Article ELEVENTH, each uncertificated share of Meridian
Common Stock and Meridian Series D Preferred Stock shall be deemed at any time
after the 

                                       6
<PAGE>
 
Effective Time to represent only the right to receive upon such exchange the
appropriate amount of Cash Consideration, in the case of uncertificated shares
of Meridian Common Stock, and an initial transaction statement representing
uncertificated ProLogis Common Shares or ProLogis New Preferred Shares, as the
case may be, and any unpaid dividends and distributions that such holder has the
right to receive in accordance with this Article ELEVENTH. The Exchange Agent
shall not be entitled to vote or exercise any rights of ownership with respect
to ProLogis Common Shares or ProLogis New Preferred Shares, as the case may be,
held by it from time to time hereunder, except that it shall receive and hold
all dividends or other distributions paid or distributed with respect thereto
for the account of persons entitled thereto.
                           
          (c) Distributions with Respect to Unexchanged Shares. No dividends or
other distributions with respect to ProLogis Common Shares or ProLogis New
Preferred Shares, as the case may be, declared or made after the Effective Time
with a record date after the Effective Time shall be paid to the holder of any
unsurrendered Certificate or any unexchanged uncertificated share with respect
to the right to receive shares of ProLogis Common Shares or ProLogis New
Preferred Shares, as the case may be, represented thereby until the holder of
such Certificate or uncertificated share shall surrender such Certificate or
rights in respect of such uncertificated share. Subject to the effect of
applicable laws, following surrender of any such Certificate or exchange of any
such uncertificated share, there shall be paid to the holder thereof, without
interest: (i) at the time of such surrender, the amount of dividends or other
distributions with a record date after the Effective Time theretofore paid with
respect to such shares of ProLogis Common Shares or ProLogis New Preferred
Shares, as the case may be; and (ii) at the appropriate payment date, the amount
of dividends or other distributions with a record date after the Effective Time
but prior to such surrender and a payment date subsequent to such surrender
payable with respect to such ProLogis Common Shares or ProLogis New Preferred
Shares, as the case may be.

          (d) No Further Ownership Rights.  Any Cash Consideration and all
shares of ProLogis Common Shares or ProLogis New Preferred Shares, as the case
may be, issued upon the surrender for exchange of shares of Meridian Common
Stock and Meridian Series D Preferred Stock in accordance with the terms hereof
shall be deemed to have been issued in full satisfaction of all rights
pertaining to such shares of Meridian Common Stock and Meridian Series D
Preferred Stock, subject, however, to the Surviving Entity's obligation to pay
any dividends or make any other distributions with a record date prior to the
Effective Time that may have been declared or made by Meridian on such shares of
Meridian Common Stock and Meridian Series D Preferred Stock in accordance with
the terms of this Agreement and which remain unpaid at the Effective Time, and
after the Effective Time there shall be no further registration of transfers on
the stock transfer books of the Surviving Entity of the shares of Meridian
Common Stock or Meridian Series D Preferred Stock that were outstanding
immediately prior to the Effective Time. If, after the Effective Time,
Certificates or rights in respect of uncertificated shares of Meridian Common
Stock or Meridian Series D Preferred Stock are presented to the Surviving Entity
for any reason, they shall be canceled and exchanged in accordance with Article
TENTH.

                                       7
<PAGE>
 
          (e) Termination of Exchange Fund.  Any portion of the Exchange Fund
made available to the Exchange Agent that remains undistributed to the former
stockholders of Meridian on the first anniversary of the Effective Time shall be
delivered to the Surviving Entity, upon demand, and any stockholders of Meridian
who have not theretofore received any applicable Cash Consideration, ProLogis
Common Shares or ProLogis New Preferred Shares, as the case may be, and any
other dividends or distributions to which they are entitled under this Article
ELEVENTH shall thereafter look only to the Surviving Entity for payment of their
claims with respect thereto and only as general creditors thereof.
                              
          (f) No Liability.  Neither the Surviving Entity nor Meridian shall be
liable to any holder of shares of Meridian Common Stock or Meridian Series D
Preferred Stock, as the case may be, for any part of the Merger Consideration or
for dividends or distributions with respect thereto delivered to a public
official pursuant to any applicable abandoned property, escheat or similar law.
Any amounts remaining unclaimed by holders of any such shares five years after
the Effective Time or at such earlier date as is immediately prior to the time
at which such amounts would otherwise escheat to or become property of any
governmental entity, shall, to the extent permitted by applicable law, become
the property of the Surviving Entity, free and clear of any claims or interest
of any such holders or their successors, assigns or personal representatives
previously entitled thereto.

          (g) Lost, Stolen, or Destroyed Certificates.  If any Certificate shall
have been lost, stolen or destroyed, upon the making of an affidavit of that
fact by the person claiming such Certificate to be lost, stolen or destroyed
and, if required by the Surviving Entity, the posting by such person of a bond
in such reasonable amount as the Surviving Entity may direct as indemnity
against any claim that may be made against it with respect to such Certificate,
the Exchange Agent shall issue in exchange for such lost, stolen or destroyed
Certificate the certificate representing the appropriate amount of Cash
Consideration payable in respect of shares of Meridian Common Stock and that
number of ProLogis Common Shares or ProLogis New Preferred Shares, as the case
may be, that such holder has the right to receive in accordance with the
provisions of Article TENTH and any unpaid dividends and distributions that such
holder has the right to receive in accordance with this Article ELEVENTH.

          (h) Withholding of Tax.  The Surviving Entity shall be entitled to
deduct and withhold from the Merger Consideration, any dividends or
distributions otherwise payable to any holder of a Certificate or holder of
uncertified shares of Meridian Common Stock or Meridian Series D Preferred
Stock, such amount as the Surviving Entity (or any affiliate thereof) or the
Exchange Agent is required to deduct and withhold with respect to the making of
such payment under federal, state, local or foreign tax law.  To the extent that
amounts are so withheld by the Surviving Entity, such withheld amounts shall be
treated for all purposes as having been paid to the former holder of a
Certificate or holder of uncertificated shares of Meridian Common Stock or
Meridian Series D Preferred stock or other stockholders of Meridian in respect
of which such deduction and withholding was made by the Surviving Entity.

                                       8
<PAGE>
 
     TWELFTH:  The parties hereto intend that the execution of these Articles of
Merger constitute the adoption of a "plan of reorganization" within the meaning
of Treasury Regulations (S) 1.368-1(c).

                                       9
<PAGE>
 
     IN WITNESS WHEREOF, MERIDIAN INDUSTRIAL TRUST, INC., a Maryland
corporation, and PROLOGIS TRUST, a Maryland real estate investment trust, the
entities parties to the merger, have caused these Articles of Merger to be
signed in their respective names and on their behalf and witnessed or attested
all as of the ____ day of March, 1999. Each of the individuals signing these
Articles of Merger on behalf of MERIDIAN INDUSTRIAL TRUST, INC. or PROLOGIS
TRUST acknowledges these Articles of Merger to be the act of such respective
entity and, as to all other matters or facts required to be verified under oath,
that to the best of his or her knowledge, information and belief, these matters
are true in all material respects and that this statement is made under the
penalties of perjury.

 

                         MERIDIAN INDUSTRIAL TRUST, INC.
                              a Maryland corporation


                         By: ____________________________________(SEAL)
                              Allen J. Anderson, Chairman and Chief
                              Executive Officer
 

Attest:

________________________________
Robert Dobbin, Secretary


                         PROLOGIS TRUST, a Maryland real estate investment trust


                         By: ____________________________________(SEAL)
                              Edward S. Nekritz, Senior Vice President

Attest:

________________________________
Jeffrey A. Klopf, Secretary

                                       10

<PAGE>
 
                                                                    Exhibit 4.21

FORMED UNDER THE LAWS                             Series D Cumulative Redeemable
OF THE STATE OF MARYLAND                 Preferred Shares of Beneficial Interest

                                                       Par Value $0.01 per share

THIS CERTIFICATE IS TRANSFERABLE IN                    SEE REVERSE FOR IMPORTANT
NEW YORK, NEW YORK                               NOTICE ON TRANSFER RESTRICTIONS
AND BOSTON, MASSACHUSETTS                                  AND OTHER INFORMATION



                                  [ L O G O ]
                                                           CUSIP 743410 50     8

                                 PROLOGIS TRUST

This certifies that



is the owner of

fully paid and non-assessable Series D Cumulative Redeemable Preferred Shares of
Beneficial Interest, par value $.01 per share, of ProLogis Trust, a real estate
investment trust formed under the laws of the State of Maryland (the "Trust")
transferable only on the books of the Trust by the holder hereof in person or by
its duly authorized Attorney upon the surrender of this Certificate properly
indorsed.

The Preferred Shares evidenced by this Certificate are subject to all of the
provisions of the Declaration of Trust, as amended from time to time (the
"Declaration of Trust"), and the Bylaws of the Trust, as amended from time to
time. The Declaration of Trust is filed and of record with the State Department
of Assessments and Taxation of Maryland and is hereby incorporated in and made a
part of this Certificate.  The holder hereof has no interest, legal or equitable
in any specific property of the Trust.  This Certificate is not valid unless
countersigned by the Transfer Agent and registered by the Registrar.

WITNESS the facsimile seal of the Trust and the facsimile signatures of its duly
authorized officers.



Dated:                                        Countersigned and Registered
                                                    BankBoston, N.A.

                                                                  Transfer Agent
                                                                   and Registrar
                                              By

                      
SECRETARY   CO-CHAIRMAN AND CHIEF OPERATING OFFICER      Authorized Signature

                               IMPORTANT NOTICE
<PAGE>
 
                                PROLOGIS TRUST

     THE TRUST WILL FURNISH TO ANY SHAREHOLDER, ON REQUEST AND WITHOUT CHARGE, A
FULL STATEMENT ON THE INFORMATION REQUIRED BY SECTION 8-203(d) OF THE
CORPORATIONS AND ASSOCIATIONS ARTICLE OF THE ANNOTATED CODE OF MARYLAND WITH
RESPECT TO THE DESIGNATIONS AND ANY PREFERENCES, CONVERSION AND OTHER RIGHTS,
VOTING POWERS, RESTRICTIONS, LIMITATIONS AS TO DIVIDENDS AND OTHER
DISTRIBUTIONS, QUALIFICATIONS, AND TERMS AND CONDITIONS OF REDEMPTION OF THE
SHARES OF EACH CLASS OF BENEFICIAL INTEREST WHICH THE TRUST HAS AUTHORITY TO
ISSUE AND, IF THE TRUST IS AUTHORIZED TO ISSUE ANY PREFERRED OR SPECIAL CLASS IN
SERIES, (i) THE DIFFERENCES IN THE RELATIVE RIGHTS AND PREFERENCES BETWEEN THE
SHARES OF EACH SERIES TO THE EXTENT SET, AND (ii) THE AUTHORITY OF THE BOARD OF
TRUSTEES TO SET SUCH RIGHTS AND PREFERENCES OF SUBSEQUENT SERIES.  THE
FOREGOING, SUMMARY DOES NOT PURPORT TO BE COMPLETE AND IS SUBJECT TO AND
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO THE DECLARATION OF TRUST OF THE TRUST,
A COPY OF WHICH WILL BE SENT WITHOUT CHARGE TO EACH SHAREHOLDER WHO SO REQUESTS.
SUCH REQUEST MUST BE MADE TO THE SECRETARY OF THE TRUST AT ITS PRINCIPAL OFFICE
OR TO THE TRANSFER AGENT.

     THE TRUST WILL FURNISH A FULL STATEMENT ABOUT CERTAIN RESTRICTIONS ON
TRANSFERABILITY TO A SHAREHOLDER ON REQUEST AND WITHOUT CHARGE.   SUCH REQUEST
MUST BE MADE TO THE SECRETARY OF THE TRUST AT ITS PRINCIPAL OFFICE OR TO THE
TRANSFER AGENT.




TEN  COM  -  as tenants in common        UNIF GIFT MIN ACT--
                                                                 (Cust)  (Minor)
TEN  ENT  -  as tenants by the
             entireties                                  Under Uniform Gifts to
                                                         Minors Act
 
JT   TEN  -  as joint tenants with
             the right of survivorship
             and not as tenants in common  

                                                                 (State)
 
                                         UNIF TRF MIN ACT--
                                                                 (Cust)
                                                                        (Minor)
 
                                               (until age ______) under Uniform
                                               Transfers to Minors Act
 
 
                                                                  (State)
                          

      Additional abbreviations may be used though not in the above list.

For Value Received,                      hereby sell, assign and transfer unto
<PAGE>
 
         PLEASE INSERT SOCIAL SECURITY OR OTHER
            IDENTIFYING NUMBER OF ASSIGNEE
- -------------------------------------------------
                                                |
- --------------------------------------------------------------------------------



  (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS INCLUDING ZIP CODE OF ASSIGNEE)



__________________________________________ Series D Preferred Shares represented
by the within Certificate, and do hereby irrevocably constitute
and appoint____________________________________________________________________
Attorney
to transfer the said shares on the books of the within named Trust with full
power of substitution in the premises.


Dated:
                                     -------------------------------------------
                                     NOTICE: The signature to this assignment
                                     must correspond with the name as written
                                     upon the face of the Certificate in every
                                     particular, without alteration or
                                     enlargement or any change whatever.
                      

<PAGE>
 
                                                                    Exhibit 4.22

FORMED UNDER THE LAWS                             Series E Cumulative Redeemable
OF THE STATE OF MARYLAND                 Preferred Shares of Beneficial Interest

                                                       Par Value $0.01 per share

THIS CERTIFICATE IS TRANSFERABLE IN                    SEE REVERSE FOR IMPORTANT
NEW YORK, NEW YORK                               NOTICE ON TRANSFER RESTRICTIONS
AND BOSTON, MASSACHUSETTS                                  AND OTHER INFORMATION



                                  [ L O G O ]
                                                               CUSIP 743410 60 7

                                 PROLOGIS TRUST

This certifies that



is the owner of

fully paid and non-assessable Preferred Shares of Beneficial Interest of
ProLogis Trust, a real estate investment trust formed under the laws of the
State of Maryland (the "Trust") transferable only on the books of the Trust by
the holder hereof in person or by its duly authorized Attorney upon the
surrender of this Certificate properly indorsed. 

The Preferred Shares evidenced by this Certificate are subject to all of the
provisions of the Declaration of Trust, as amended from time to time (the
"Declaration of Trust"), and the Bylaws of the Trust, as amended from time to
time. The Declaration of Trust is filed and of record with the State Department
of Assessments and Taxation of Maryland and is hereby incorporated in and made a
part of this Certificate. The holder hereof has no interest, legal or equitable
in any specific property of the Trust. This Certificate is not valid unless
countersigned by the Transfer Agent and registered by the Registrar.

WITNESS the facsimile seal of the Trust and the facsimile signatures of its duly
authorized officers.



Dated:                                        Countersigned and Registered
                                                     BankBoston, N.A.

                                                                  Transfer Agent
                                                                   and Registrar
                                                     By

SECRETARY    CO-CHAIRMAN AND CHIEF OPERATING OFFICER      Authorized Signature

                                IMPORTANT NOTICE
                                 PROLOGIS TRUST
<PAGE>
 
     THE DECLARATION OF TRUST ON FILE IN THE OFFICE OF THE STATE DEPARTMENT OF
ASSESSMENTS AND TAXATION OF MARYLAND SETS FORTH A FULL STATEMENT OF THE
INFORMATION REQUIRED BY SECTION 8-203(d) OF THE CORPORATIONS AND ASSOCIATIONS
ARTICLE OF THE ANNOTATED CODE OF MARYLAND WITH RESPECT TO (A) ALL OF THE
DESIGNATIONS, PREFERENCES, CONVERSION AND OTHER RIGHTS, VOTING POWERS,
RESTRICTIONS, LIMITATIONS AS TO DIVIDENDS AND OTHER DISTRIBUTIONS,
QUALIFICATIONS, AND TERMS AND CONDITIONS OF REDEMPTION, AND OTHER RELATIVE
RIGHTS OF THE SHARES OF EACH CLASS OF SHARES AUTHORIZED TO BE ISSUED AND (B) THE
AUTHORITY OF THE BOARD OF TRUSTEES TO ISSUE ANY PREFERRED OR SPECIAL CLASS IN
SERIES, THE DIFFERENCES IN THE RELATIVE RIGHTS AND PREFERENCES BETWEEN THE
SHARES OF EACH SERIES TO THE EXTENT THEY HAVE BEEN SET AND THE AUTHORITY OF THE
BOARD OF TRUSTEES TO SET THE RELATIVE RIGHTS AND PREFERENCES OF SUBSEQUENT
SERIES OF PREFERRED SHARES. THE TRUST WILL FURNISH A COPY OF SUCH STATEMENT TO
ANY HOLDER OF SHARES WITHOUT CHARGE ON REQUEST TO THE SECRETARY OF THE TRUST AT
ITS PRINCIPAL PLACE OF BUSINESS.

     THE PREFERRED SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO
RESTRICTIONS ON OWNERSHIP AND TRANSFER FOR PURPOSES OF THE TRUST'S MAINTENANCE
OF ITS STATUS AS A REAL ESTATE INVESTMENT TRUST UNDER THE INTERNAL REVENUE CODE
OF 1986, AS AMENDED, AS SET FORTH IN THE DECLARATION OF TRUST, A COPY OF WHICH,
INCLUDING THE RESTRICTIONS ON OWNERSHIP AND TRANSFER, WILL BE FURNISHED TO EACH
SHAREHOLDER ON REQUEST AND WITHOUT CHARGE.

     The following abbreviations, when used in the inscription on the face of
this certificate, shall be construed as though they were written out in full
according to applicable laws or regulations:

 
TEN   COM   -  as tenants in common             UNIF GIFT MIN ACT--
                                                            (Cust)  (Minor)
TEN   ENT   -  as tenants by the entireties            Under Uniform Gifts 
                                                       to Minors Act
JT    TEN   -  as joint tenants with the
               right of survivorship and
               not as tenants in common 
                                                              (State)
 
                                                UNIF TRF MIN ACT--
                                                            (Cust)  (Minor)
 
                                                       (until age ______) under 
                                                       Uniform Transfers to
                                                       Minors Act
 
 
                                                              (State)
 

     Additional abbreviations may also be used though not in the above list.

     For Value Received, _____________________________ hereby sell, assign and
transfer unto
<PAGE>
 
     PLEASE INSERT SOCIAL SECURITY OR OTHER
         IDENTIFYING NUMBER OF ASSIGNEE
- -----------------------------------------------

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


  (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS INCLUDING ZIP CODE OF ASSIGNEE)



     Series E Preferred Shares represented by the within Certificate, and do
hereby irrevocably constitute and appoint

- --------------------------------------------------------------------------------
     Attorney to transfer the said shares on the books of the within named Trust
with full power of substitution in the premises.

Dated:___________________________


                                       -----------------------------------------
                                       NOTICE: The signature to this assignment
                                       must correspond with the name as written
                                       upon the face of the Certificate in every
                                       particular, without alteration or
                                       enlargement or any change whatever.

<PAGE>

                                                                     Exhibit 5.1

                       [Mayer, Brown & Platt Letterhead]


 
                               February 3, 1999


The Board of Trustees
ProLogis Trust
14100 East 35th Place
Aurora, Colorado 80011

Gentlemen:

     We have acted as special counsel to ProLogis Trust, a Maryland real estate
investment trust ("ProLogis"), in connection with the proposed issuance of the
following securities (the "Securities") of ProLogis in connection with the
merger (the "Merger") of Meridian Industrial Trust, Inc., a Maryland corporation
("Meridian"), with and into ProLogis pursuant to the Agreement and Plan of
Merger between ProLogis and Meridian dated November 16, 1998, as amended (the
"Merger Agreement"), as described in ProLogis' Registration Statement on Form S-
4 (File No. 333-69001) filed with the Securities and Exchange Commission (the
"Registration Statement"): (i) Common Shares of Beneficial Interest, par value
$0.01 per share (the "Common Shares") and a corresponding number of Preferred
share Purchase Rights, and (ii) 2,000,000 Series E Cumulative Redeemable
Preferred Shares of Beneficial Interest, par value $0.01 per share (the
"Preferred Shares").

     The Securities are to be issued under ProLogis' Amended and Restated
Declaration of Trust, as amended and supplemented (the "Declaration of Trust"),
filed with the State Department of Assessments and Taxation of Maryland.

     As special counsel to ProLogis, we have examined originals or copies
certified or otherwise identified to our satisfaction of the Registration
Statement, the Merger Agreement, the Declaration of Trust, ProLogis' Bylaws,
resolutions of ProLogis' Board of Trustees and committees thereof and such
ProLogis records, certificates and other documents and such questions of law as
we considered necessary or appropriate for the purpose of this opinion. As to
certain facts material to our opinion, we have relied, to the extent we deem
such reliance proper, upon certificates of public officials and officers of
ProLogis. In rendering this opinion, we have assumed the genuineness of all
signatures, the authenticity of all documents submitted to us as originals and
the conformity to authentic original documents of all documents submitted to us
as copies.

     Based upon and subject to the foregoing and to the assumptions, conditions
and limitations set forth herein, we are of the opinion that:

<PAGE>
 
     (1) the Preferred Shares have been duly authorized and, when and if
delivered in the manner described in the Merger Agreement, will be legally
issued, fully paid and, except as described below, nonassessable; and

     (2) the Common Shares have been duly authorized and, when and if delivered
in the manner described in the Merger Agreement, will be legally issued, fully
paid and, except as described below, nonassessable.

     Our opinion relating to the nonassessability of the Preferred Shares and
the Common Shares does not pertain to the potential liability of shareholders of
ProLogis for debts and liabilities of ProLogis. Section 5-419(a) of the Maryland
Courts and Judicial Proceedings Code provides that "a shareholder . . . of a
real estate investment . . . is not personally liable for the obligations of the
real estate investment trust." The Declaration of Trust provides that no
shareholder shall be personally or individually liable in any manner whatsoever
for any debt, act, omission or obligation incurred by ProLogis or ProLogis'
Board of Trustees. The Declaration of Trust further provides that ProLogis shall
indemnify and hold harmless shareholders against all claims and liabilities and
related reasonable expenses to which they become subject by virtue of their
status as current or former shareholders. In addition, we have been advised that
ProLogis, as a matter of practice, inserts a clause in its business, management
and other contracts that provides that shareholders shall not be personally
liable thereunder. Accordingly, no personal liability should attach to ProLogis'
shareholders for contract claims under any contract containing such a clause
where adequate notice is given. However, with respect to tort claims, contract
claims where shareholder liability is not so negated, claims for taxes and
certain statutory liability, the shareholders may, in some jurisdictions,
including Colorado, the state in which ProLogis' principal executive office is
located, be personally liable for such claims and liabilities.

     We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement and to all references to our firm in the Registration
Statement.

                                  Very truly yours,

                                  MAYER, BROWN & PLATT



                                  By: /s/ Michael T. Blair
                                     ------------------------------
                                          Michael T. Blair


<PAGE>
 
                                                                     Exhibit 8.1

                       [Mayer, Brown & Platt Letterhead]
                               February 3, 1999

ProLogis Trust
14100 East 35th Place
Aurora, Colorado  80011


     Re:  Material Federal income tax consequences of the Merger of Meridian
          Industrial Trust with and into ProLogis Trust

Ladies and Gentlemen:

     In connection with the merger (the "Merger") of Meridian Industrial Trust,
Inc., a Maryland corporation ("Meridian"), with and into ProLogis Trust, a
Maryland real estate investment trust ("ProLogis"), pursuant to the Agreement
and Plan of Merger dated as of November 16, 1998 by and between ProLogis and
Meridian (the "Merger Agreement"), you have requested our opinion that the
summaries of Federal income tax consequences set forth in the joint proxy
statement and prospectus (the "Proxy Statement and Prospectus") included as part
of the registration statement on Form S-4 under the heading "The Merger--
Material federal income tax consequences--Tax treatment of Meridian and
ProLogis" are accurate in all material respects as to matters of law and legal
conclusions.

     Pursuant to the Merger, (i) each share of common stock, $.001 par value per
share, of Meridian ("Meridian Common Stock") shall be converted into the right
to receive (A) 1.10 common shares of beneficial interest, $.01 par value per
share, of ProLogis ("ProLogis Common Stock") and the corresponding number of
preferred share purchase rights, and (B) the Cash Consideration, as defined in
the Merger Agreement, and (ii) each share of Series D Cumulative Redeemable
Preferred Stock, $.001 par value per share, of Meridian ("Meridian Preferred
Stock") shall be converted into the right to receive one Series E Cumulative
Redeemable Preferred Share of Beneficial Interest, $.01 par value per share, of
ProLogis ("ProLogis Preferred Stock").

     In providing this opinion, we have relied on (i) the description of the
transaction as set forth in the Merger Agreement and the exhibits thereto, (ii)
the Articles Supplementary of ProLogis Preferred Stock; (iii) the description of
the transaction as set forth in the Proxy Statement and Prospectus included as
part of the Registration

<PAGE>
 
ProLogis Trust
February 3, 1999
Page 2
 
Statement and the exhibits thereto, (iv) the representations provided by
Meridian concerning certain facts underlying and relating to the Merger and its
qualification as a "real estate investment trust," (v) the representations
provided by ProLogis concerning certain facts underlying and relating to the
Merger and its qualification as a "real estate investment trust," and (vi) the
tax opinion of Vinson & Elkins L.L.P. dated the date hereof regarding the status
of Meridian as a "real estate investment trust."

     Based upon and subject to the foregoing, it is our opinion that the
summaries of Federal income tax consequences set forth in the Proxy Statement
and Prospectus under the heading "The Merger--Material federal income tax
consequences--Tax treatment of Meridian and ProLogis" are accurate in all
material respects as to matters of law and legal conclusions. In addition, based
upon and subject to the foregoing, we confirm our specific opinions in the Proxy
Statement and Prospectus under the caption "The Merger-Material federal income
tax consequences."

     This opinion is based on current provisions of the Internal Revenue Code of
1986, as amended (the "Code"), the Treasury regulations promulgated thereunder,
and the interpretation of the Code and such regulations by the courts and the
Internal Revenue Service, as they are in effect and exist at the date of this
opinion. It should be noted that statutes, regulations, judicial decisions and
administrative interpretations are subject to change at any time and, in some
circumstances, with retroactive effect. A material change that is made after the
date hereof in any of the foregoing bases for our opinion could adversely affect
our conclusions.

     We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement and to all references to this firm under the heading "The
Merger--Material federal income tax consequences" in the Proxy Statement and
Prospectus.

                                    Sincerely,



                                    Mayer, Brown & Platt

<PAGE>
 
                                                                     EXHIBIT 8.2

                        [Letterhead of Vinson & Elkins]


                              February 3, 1999


ProLogis Trust
14100 East 35th Place
Aurora, Colorado 80011

Meridian Industrial Trust, Inc.
455 Market Street
17th Floor
San Francisco, California 94105

     Re:  Material Federal Income Tax Consequences of the Merger of Meridian
          Industrial Trust with and into ProLogis Trust

Ladies and Gentlemen:

     In connection with the merger (the "Merger") of Meridian Industrial Trust,
Inc., a Maryland corporation ("Meridian"), with and into ProLogis Trust, a
Maryland real estate investment trust ("ProLogis"), pursuant to the Agreement
and Plan of Merger dated as of November 16, 1998, as amended as of the date of
this opinion, by and between ProLogis and Meridian (the "Merger Agreement"), you
have requested our opinion that the summaries of Federal income tax consequences
set forth in the joint proxy statement and prospectus (the "Proxy Statement and
Prospectus") included as part of the registration statement on Form S-4 of
ProLogis, as initially filed with the Securities and Exchange Commission on
December 16, 1998 (as thereafter amended from time to time and together with
exhibits thereto, the "Registration Statement") under the headings "The Merger--
Material federal income tax consequences--Tax treatment of Meridian and
ProLogis" and "The Merger--Material federal income tax consequences--Receipt of
ProLogis common shares and Series E preferred shares in exchange for Meridian
common stock and preferred stock" are accurate in all material respects as to
matters of law and legal conclusions. Capitalized terms not otherwise defined 
herein shall have the same meanings given such terms in the Merger Agreement.

     Pursuant to the Merger, (i) each share of common stock, $0.001 par value
per share, of Meridian ("Meridian Common Stock") shall be converted into the
right to receive (A) 1.1 shares of beneficial interest, $0.01 par value per
share, of ProLogis ("ProLogis Common Stock"), and (B) the Cash Consideration, if
any, and (ii) each share of Series D Cumulative Redeemable Preferred Stock,
$0.001 par value per share, of Meridian ("Meridian Preferred Stock") shall be
converted into
<PAGE>
 
ProLogis Trust
Meridian Industrial Trust, Inc.
February 3, 1999
Page 2


the right to receive one ProLogis Series E Cumulative Redeemable Preferred
Share, $0.01 par value per share ("ProLogis Preferred Stock").

     In providing this opinion, we have relied on (i) the description of the
transaction as set forth in the Merger Agreement and the exhibits thereto, (ii)
the Articles Supplementary of ProLogis Preferred Stock; (iii) the description of
the transaction as set forth in the Registration Statement, (iv) the
representations provided by Meridian concerning certain facts underlying and
relating to the Merger and its qualification as a "real estate investment
trust", (v) the representations provided by ProLogis concerning certain facts
underlying and relating to the Merger, and (vi) the tax opinion of Mayer, Brown
& Platt dated the date hereof regarding the tax status of ProLogis as a "real
estate investment trust."

     Based upon and subject to the foregoing, it is our opinion that the
summaries of Federal income tax consequences set forth in the Proxy Statement
and Prospectus under the headings "The Merger--Material federal income tax
consequences--Tax treatment of Meridian and ProLogis" and "The Merger--Material
federal income tax consequences--Receipt of ProLogis common shares and Series E
preferred shares in exchange for Meridian common stock and preferred stock" are
accurate in all material respects as to matters of law and legal conclusions. In
addition, based upon and subject to the foregoing, it is our opinion that
Meridian has qualified to be taxed as a real estate investment trust pursuant to
the Internal Revenue Code of 1986, as amended (the "Code") for its taxable years
ending December 31, 1995, 1996, 1997, and 1998 and will so qualify for its
taxable year ending as of the Closing Date and that each MIT Partnership is
properly treated as a partnership and not as a "publicly traded partnership," as
defined in Section 7704 of the Code, for federal income tax purposes.

     This opinion is based on current provisions of the Code, the Treasury
regulations promulgated thereunder, and the interpretation of the Code and such
regulations by the courts and the Internal Revenue Service, as they are in
effect and exist at the date of this opinion.  It should be noted that statutes,
regulations, judicial decisions and administrative interpretations are subject
to change at any time and, in some circumstances, with retroactive effect.  A
material change that is made after the date hereof in any of the foregoing bases
for our opinion could adversely affect our  conclusions.

     We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement and to all references to this firm under the heading "The
Merger--Material federal income tax consequences" in the Proxy Statement and
Prospectus.

                                    Sincerely,



                                    Vinson & Elkins L.L.P.

<PAGE>
 
                                                                    EXHIBIT 12.1
PROLOGIS
COMPUTATION OF RATIO OF EARNINGS TO COMBINED FIXED CHARGES
AND PREFERRED SHARE DIVIDENDS
(Dollar amounts in thousands)

<TABLE> 
<CAPTION> 
                                                Historical         
                                            -------------------                         Historical
                                             Nine Months Ended     ----------------------------------------------------
                                               September 30,                     Year Ended December 31,
                                            -------------------    ----------------------------------------------------
                                              1998       1997        1997        1996       1995       1994       1993
                                            --------    -------    --------    --------    -------    -------    ------
<S>                                         <C>         <C>        <C>         <C>         <C>        <C>        <C> 
Net Earnings from Operations                $ 74,353    $ 4,381    $ 32,371    $ 79,384    $47,660    $25,066    $4,412
Add:
  Interest Expense                            52,455     39,188      52,704      38,819     32,005      7,568       321 
                                            --------    -------    --------    --------    -------    -------    ------
Earnings as Adjusted                        $126,808    $43,569    $ 85,075    $118,203    $79,665    $32,634    $4,733
                                            ========    =======    ========    ========    =======    =======    ======

Combined Fixed Charges and Preferred 
 Share Dividends:
  Interest Expense                          $ 52,455    $39,188    $ 52,704    $ 38,819    $32,005    $ 7,568    $  321
  Capitalized Interest                        14,814     12,863      18,365      16,138      8,599      2,208        98
                                            --------    -------    --------    --------    -------    -------    ------
    Total Fixed Charges                       67,269     52,051      71,069      54,957     40,604      9,776       419
  Preferred Share Dividends (a)               35,543     26,488      35,318      25,895      6,698         --        --
                                            --------    -------    --------    --------    -------    -------    ------
Combined Fixed Charges and
  Preferred Share Dividends                 $102,812    $78,539    $106,387    $ 80,852    $47,302    $ 9,776    $  419
                                            ========    =======    ========    ========    =======    =======    ======

Ratio of Earnings (Loss) to Combined Fixed
  Charges and Preferred Share Dividends          1.2        (b)         (b)         1.5        1.7        3.3      11.3
                                            ========    =======    ========    ========    =======    =======    ======
</TABLE> 

<TABLE> 
<CAPTION> 
                                                        Pro Forma
                                             ---------------------------------
                                             Nine Months Ended     Year Ended
                                               September 30,      December 31,
                                             -----------------    ------------
                                                   1998               1997
                                                 --------           --------
<S>                                          <C>                  <C>  
Net Earnings from Operations                     $ 94,006           $ 69,780
Add:
  Interest Expense                                 72,939             87,258
                                                 --------           --------
Earnings as Adjusted                             $166,945           $157,038
                                                 ========           ========

Combined Fixed Charges and Preferred 
 Share Dividends:
  Interest Expense                               $ 72,939           $ 87,258
  Capitalized Interest                             17,974             20,185
                                                 --------           --------
    Total Fixed Charges                            90,913            107,443
                                                 --------           --------
  Preferred Share Dividends (a)                    38,824             39,693
                                                 --------           --------
Combined Fixed Charges and
  Preferred Share Dividends                      $129,737           $147,136
                                                 ========           ========

Ratio of Earnings (Loss) to Combined Fixed
  Charges and Preferred Share Dividends               1.3                1.1
                                                 ========           ========
</TABLE> 

(a) ProLogis had no preferred shares prior to 1995.

(b) Due to a one-time, non-recurring charge of $75.4 million relating to the
    costs incurred in acquiring the management companies from a related party
    earnings were insufficient to cover combined fixed charges and preferred
    share dividends for the nine months ended September 30, 1997 by $35.0
    million and the year ended December 31, 1997 by $21.3 million.
                            

<PAGE>
 
                                                                    Exhibit 23.1

                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

As independent public accounts, we hereby consent to the incorporation by
reference in this registration statement of (i) our reports dated March 13, 1998
included in ProLogis (formerly Security Capital Industrial) Trust's (the
"Trust") Form 10-K for the year ended December 31, 1997, (ii) our report dated
March 13, 1998, included in the Trust's Form 8-K dated March 13, 1998 and (iii)
our reports dated November 30, 1998, included in the Trust's Form 8-K dated
December 4, 1998, and to all references to our Firm included in this
registration statement.



/s/ ARTHUR ANDERSEN LLP

Chicago, Illinois
February 3, 1999

<PAGE>
 
                                                                    Exhibit 23.2

                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS

As independent public accountants, we hereby consent to the incorporation by
reference in this registration statement of our report dated March 23, 1998
included in Meridian Industrial Trust, Inc.'s Form 10-K for the year ended
December 31, 1997, and to all references to our Firm included in this
registration statement.

/s/ Arthur Andersen LLP

San Francisco, California
February 3, 1999

<PAGE>
 
                                                                    Exhibit 23.5

                         Consent of Merrill Lynch & Co.



We hereby consent to the use of our opinion letter dated November 16, 1998 to
the Board of Trustees of ProLogis Trust included as Annex B to the joint proxy
statement and prospectus which forms a part of the Registration Statement on
Form S-4 relating to the proposed merger of Meridian Industrial Trust, Inc. with
and into ProLogis Trust and to the references to such opinion in such joint
proxy statement and prospectus under the captions "Summary--Opinions of
Financial Advisors," "The Merger--Background of the Merger," "The Merger--
Reasons for the Merger; Recommendations of the ProLogis Board" and "The Merger--
Opinion of ProLogis' Financial Advisor" and to the inclusion of the foregoing
opinion as "Annex B" to the above mentioned Joint Proxy Statement and
Prospectus. In giving such consent, we do not admit that we come within the
category of persons whose consent is required under Section 7 of the Securities
Act of 1933, as amended, (the "Securities Act") or the rules and regulations of
the Securities Exchange Commission thereunder (the "SEC"), nor do we thereby
admit that we are experts with respect to any part of such Registration
Statement within the meaning of the term "experts" as used in the Securities
Act, or the rules and regulations of the SEC thereunder.

 
                                  MERRILL LYNCH, PIERCE, FENNER 
                                       & SMITH INCORPORATED


                                  By: /s/ Michael V. DeFelice
                                      ---------------------------
                                          Director


February 2, 1999

<PAGE>
 
                                                                    Exhibit 99.1

                                 PROLOGIS TRUST

         THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF TRUSTEES OF
                                 PROLOGIS TRUST

The undersigned shareholder of ProLogis Trust, a Maryland real estate investment
trust ("ProLogis"), herein appoints K. Dane Brooksher, Irving F. Lyons III,
Edward S. Nekritz and  Jeffrey A. Klopf, and each of them, as proxies for the
undersigned, with full power of substitution in each of them, to attend the
Special Meeting of Shareholders of ProLogis to be held on March ___, at ___
a.m., Mountain time, at the offices of ProLogis, 14100 East 35th Place, Aurora,
Colorado 80011 and any adjournment or postponement thereof, to cast on behalf of
the undersigned all votes that the undersigned is entitled to cast at such
meeting and otherwise to represent the undersigned at the meeting with all
powers possessed by the undersigned if personally present at the meeting.  The
undersigned hereby revokes any proxy previously given with respect to such
shares.

The undersigned acknowledges receipt of the Notice of Special Meeting of
Shareholders and accompanying Joint Proxy Statement and Prospectus.

THE SHARES REPRESENTED BY THIS PROXY WILL BE VOTED IN ACCORDANCE WITH THE
SPECIFICATIONS MADE. IF THIS PROXY IS EXECUTED BUT NO SPECIFICATION IS MADE, THE
SHARES REPRESENTED BY THIS PROXY WILL BE VOTED "FOR" ITEM 1 BELOW AND IN THE
DISCRETION OF THE PROXY HOLDERS ON ANY OTHER MATTERS THAT MAY PROPERLY COME
BEFORE THE MEETING OR ANY ADJOURNMENTS OR POSTPONEMENTS THEREOF.

1.     Approval and adoption of the merger agreement, dated November 16, 1998,
between ProLogis Trust and Meridian Industrial Trust, Inc., and the merger and
other transactions contemplated thereby.

       [_]   FOR         [_]   AGAINST         [_]   ABSTAIN

2.     To vote and otherwise represent the undersigned on any other matter which
may properly come before the meeting or any adjournment or postponement thereof
in the discretion of the Proxy holder.

The Board of Trustees is not aware of any matter which is to be presented for
action at the meeting other than the matters set forth herein.

                                     MARK HERE IF YOU PLAN TO ATTEND THE
                                     MEETING [_]

                                     __________________________________________

                                     __________________________________________
                                     (Please sign exactly as name or names
                                     appear hereon.  If the shares are held
                                     jointly, each holder should sign.  When
                                     signing as attorney, executor,
                                     administrator, trustee, guardian or as an
                                     officer signing for a corporation, please
                                     give full title under signature.)

                                     Dated: ____________, 1999

                                             [ProLogis LOGO]
  
                                     Special Meeting of Shareholders
                                             ADMISSION TICKET
                                      
                                      __________, March ___, 1999
                                          _____ a.m. (mountain time)
                                            14100 East 35th Place
                                            Aurora, Colorado 80011


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