SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                 SCHEDULE 13D/A

                   UNDER THE SECURITIES EXCHANGE ACT OF 1934
                              (Amendment No. 11)*


NAME OF ISSUER:  American Industrial Properties REIT

TITLE OF CLASS OF SECURITIES:  Shares of Beneficial Ownership

CUSIP NUMBER:   026791103000

NAME, ADDRESS AND TELEPHONE NUMBER OF PERSON AUTHORIZED TO
RECEIVE NOTICES AND COMMUNICATIONS:

     Natalie I. Koether, Esq., Rosenman & Colin
     P. O. Box 97, Far Hills, New Jersey 07931      (908) 766-4101

DATE OF EVENT WHICH REQUIRES FILING:    October 24, 1995


If the filing person has previously  filed a statement on Schedule 13G to report
the  acquisition  which is the subject of this  Schedule 13D, and is filing this
schedule because of Rule 13d-1 (b)(3) or (4), check the following: ________

Check the following if a fee is being paid with the statement:_________.  (A fee
is not required only if the reporting  person:  (1) has a previous  statement on
file  reporting  beneficial  ownership of more than five percent of the class of
securities  described  in Item 1;  and (2) has  filed  no  amendment  subsequent
thereto reporting beneficial ownership of five percent or less of such class.)
(See Rule 13d-7.)

     Note: Six copies of this statement, including all exhibits, should be filed
with the  Commission.  See Rule 13d-1(a) for other parties to whom copies are to
be sent.

*The  remainder of this cover page shall be filled out for a reporting  person's
initial filing on this form with respect to the subject class of securities, and
for  any  subsequent   amendment   containing   information  which  would  alter
disclosures provided in a prior cover page.

The  information  required on the remainder of this cover shall not be deemed to
be "filed" for the purpose of Section 18 of the Securities  Exchange Act of 1934
("Act") or otherwise  subject to the  liabilities of that section of the Act but
shall be subject to all other provisions of the Act (however, see the Notes).

                         (Continued on following pages)






CUSIP NO.:  026791103000


1.       NAME OF REPORTING PERSON:  Pure World, Inc.
                                    (formerly American Holdings, Inc.)

2.       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP:
         (a)      (b)   X

3.       [SEC USE ONLY]

4.       SOURCE OF FUNDS:  WC

5.       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED
         PURSUANT TO ITEMS 2(d) OR 2(e):

6.       CITIZENSHIP OR PLACE OF ORGANIZATION:   Delaware

7.       SOLE VOTING POWER:          888,000

8.       SHARED VOTING POWER:

9.       SOLE DISPOSITIVE POWER:     888,000

10.      SHARED DISPOSITIVE POWER:

11.      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
         PERSON:                     888,000

12.      CHECK BOX IS THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
         CERTAIN SHARES:

13.      PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11):   9.785%

14.      TYPE OF REPORTING PERSON:   CO






     This Amendment No. 11 (the  "Amendment")  relates to the Schedule 13D filed
on February 2, 1994, in connection with the ownership by Pure World, Inc. ("Pure
World") of Shares of  Beneficial  Interest  ("Shares")  of  American  Industrial
Properties  REIT,  a Texas  real  estate  investment  trust (the  "Trust").  The
capitalized terms used in the Amendment,  unless otherwise  defined,  shall have
the same meaning as in the original Schedule 13D.

Item 4.  PURPOSE OF TRANSACTION.

     Item 4 is amended hereby to add the following:

     Pure  World  has  demanded  a copy of the  Trust's  Shareholder  list as of
October 24, 1995. A copy of the demand letter has been attached as Exhibit I.

Item 7.  MATERIAL TO BE FILED AS EXHIBITS.

     Exhibit I - Letter to Charles Wolcott dated October 24, 1995.











                                   SIGNATURE
                                   ---------


     After  reasonable  inquiry and to the best of my  knowledge  and belief,  I
certify that the information  set forth in this statement is true,  complete and
correct.


Dated: October 24, 1995

                                        PURE WORLD, INC.


                                            
                                        /s/ Mark Koscinski
                                        -------------------------
                                        Mark Koscinski
                                        Senior Vice President








                                   EXHIBIT I



                                             October 24, 1995


VIA FAX AND FEDERAL EXPRESS

American Industrial Properties REIT
6220 North Beltline, Suite 205
Irving, Texas 75063

Attention:  Charles W. Wolcott, President

Re:         Shareholder List

Dear Mr. Wolcott:

         Pure  World,  Inc.  (formerly  American  Holdings,  Inc.,)  a  Delaware
Corporation  ("Pure  World"),  owns  more than 5% of the  outstanding  Shares of
Beneficial  Interest  ("Shares")  of American  Industrial  Properties  REIT (the
"Trust") and currently  intends to communicate with  Shareholders  regarding the
management  and  financial  performance  of the Trust.  On behalf of Pure World,
demand is made hereby pursuant to Section 18 of the Texas Real Estate Investment
Trust Act, that the Trust provide to Pure World the following (collectively, the
"List").

     (a) A complete  record or list of the holders of Shares,  certified  by the
Trust or its  transfer  agent,  showing  the name and  address of each holder of
Shares,  the account number of the holder and the number of Shares registered in
the name of each such holder as of October  24, 1995 or a date as close  thereto
as practicable;

     (b) A magnetic  computer  tape list of the  holders of Shares as of October
24, 1995, showing the names, addresses, account number and number of Shares held
by such holders,  together with such computer processing data as is necessary to
make  use of such  magnetic  computer  tape,  and a  printout  of such  magnetic
computer tape for verification purposes;





American Industrial Properties REIT
October 24, 1995
Page 2


     (c) All information in or which comes into the possession or control of the
Trust,  or which  can  reasonably  be  obtained  from  nominees  of any  central
certificate depositary system, concerning the identity and holdings of brokerage
and financial institutions holding Shares through depositaries or nominees, such
as Cede & Co., Pacific & Co., Kray & Co., Philadep, DLJ and any other or similar
nominees;

     (d) A list or lists  containing  the  name,  address  and  number of Shares
attributable to any participant in any Trust employee stock ownership,  dividend
reinvestment  or other plan in which the decision how to vote is made,  directly
or indirectly,  individually or  collectively,  by the participants in the plan;
and
                                                                               
     (e) All information in or which comes into the Trust's  possession or which
can reasonably be obtained from brokers,  dealers,  banks,  clearing agencies or
voting  trustees  relating  to the names of the  non-objecting  and  acquiescing
beneficial  owners of Shares in the format of a  printout  in  descending  order
balance  (such  information  being  readily  available  to the Trust  under Rule
14b-1(c) or Rule  14b(21(c))  of the  Securities  Exchange  Act of 1934 from ADP
Proxy Services or similar entities). 

     Pure World will reimburse the Trust for its reasonable  out-of-pocket costs
incurred in obtaining and providing the List requested hereby.

     The List should be sent by Federal  Express to Pure World,  Inc.,  376 Main
Street, Bedminster, New Jersey 07921, to the attention of John W. Galuchie, Jr.,
Executive Vice President.

     Questions  regarding  the form and  arrangements  for  delivery of the List
should be directed to the undersigned at (908) 234-9220.  Other questions may be
directed to Paul O. Koether, Chairman, at (908) 766-7220.

                                   Very  truly  yours,  


                                   /s/ John W. Galuchie, Jr.
                                   -------------------------
                                   John W. Galuchie, Jr. 
                                   Executive Vice President

JWG/klf