Document:

EXHIBIT 10.3

                               Company Letterhead

                                  May 28, 2004

Mr. Claude R. Aubert
4144 Lake Oconee Drive
Buford, GA 30519

Dear Claude:

With the change in your duties and  responsibilities  to that of Vice President,
Technical Sales, your salary is, hereby, changed as follows:

Beginning  June 27 and on July 25,  August  22 and  October 3  thereafter,  your
salary,  calculated  on an annual basis,  shall be reduced by the  equivalent of
$5,000 per annum, reducing your annual salary from $100,000 currently to $80,000
as of October 3, 2004.

In accordance  with the foregoing,  your salary,  paid every two weeks, is then:

               $3,653.85 effective June 27,
               $3,461.54 effective July 25,
               $3,269.23 effective August 22, and
               $3,076.92 effective October 3, 2004.

To indicate your  understanding  and  acceptance of these  changes,  please sign
where indicated  hereafter.  {If my duties and  responsibilities are changing in
the future back to  technology,  I am  expecting an  adjustment  to the original
annual salary. CA}

Sincerely,                         Acknowledged and accepted:

EMPLOYER                           EMPLOYEE

/S/ SUELING WANG                   /S/ CLAUDE R. AUBERT
_______________________            _______________________
Sueling Wang, Phd                  Claude R. Aubert
President

1794045Chesterbrook Partners Inc.
                                P.O. Box 812634
                              Boca Raton, FL 33481

               Agreement Between Mediscience Technology Corp. And
                           Chesterbrook Partners Inc.

November 15, 2001

Peter Katevatis, Esq., Chairman
Mediscience Technology Corp.
P.O. Box 598
Cherry Hill, NJ 08003

RE: The ongoing Negotiation of the $45,000 total Funded by Chesterbrook Partners
Inc. to Mediscience

The parties agree:

1.   Chesterbrook will receive 180,000 shares of Rule 144 legend Mediscience
     common stock ($0.25 per share), to be registered I/N/O Ned H. Elgart and
     delivered to:

                  Ned H. Elgart
                  P.O. Box 812634
                  Boca Raton, Fl, 33481

2.   Chesterbrook will also receive 200,000 assignable options to purchase
     common shares of Mediscience at an exercise price of $0.25 per share,
     exercisable for a period of five (5) years.

     These options are to be issued to Chesterbrook Partners Inc. and delivered
     to the above address in three separate increment option documents;

         100,000  50,000   and 50,000

3.   The above agreement will be considered full and final settlement of all
     prior understandings between Mediscience and Chesterbrook, its agents,
     servants and employees.

Sincerely

/s/Ned H. Elgart
Ned H. Elgart, President
Chesterbrook Partners Inc.

ACKNOWLEDGED AND AGREED TO:
                                                     Date:11/15/01
/s/Peter Katevatis
Peter Katevatis, Esq., Chairman
Mediscience Technology Corp.STOCK PURCHASE WARRANT TO PURCHASE COMMON STOCK
OF MEDISCIENCE TECHNOLOGY CORP. (MTC
DATE:  November 15, 2001

Neither this Warrant nor the shares of Common Stock issuable upon exercise of
this Warrant have been registered under the Securities Act of 1933, and neither
this Warrant nor such shares of Common Stock can be sold or transferred unless
and until they are so registered or unless such registration is not then
required under the circumstances of such sale or transfer.

Warrant to purchase up to (100,000) one hundred thousand shares of Common Stock
Dated November 15, 2001 Cherry Hill New Jersey.

This certifies that for value received, Chesterbrook Partners Inc. (CP) is
entitled to subscribe for and purchase from (MTC), a corporation organized and
existing under the laws of the State of New Jersey, at the price of $.25 per
share for 100,000 shares subject to this Warrant and its terms and conditions.
This five (5) year Warrant shall be exercisable from and after November 15, 2001
up to November 15, 2006, its expiration date.

This warrant is TOTALLY ASSIGNABLE by (CP) at any time, such assignment effected
by notice of such assignment received and acknowledged by Mediscience Technology
Corp. at its office 1235 Folkstone Way, Cherry Hill NJ 08034.

It is understood that the holder of this warrant has no anti-dilution rights and
shall have none of the rights, privileges or liabilities of the shareholders of
the company in law or equity prior to written notice to Mediscience Technology
of the exercise of this warrant.

In witness hereof Mediscience Technology Corporation has caused this warrant to
be signed by its duly authorized officer under its corporate seal.

/s/Peter Katevatis                         /s/Ned H. Elgart
------------------                         ----------------
Peter Katevatis, Chairman/CEO               Accepted:Chesterbrook Partners Inc.
Mediscience Technology Corp.                By: Ned H. Elgart, President
November 15, 2001
Cherry Hill NJSTOCK PURCHASE WARRANT TO PURCHASE COMMON STOCK
OF MEDISCIENCE TECHNOLOGY CORP. (MTC
DATE:  November 15, 2001

Neither this Warrant nor the shares of Common Stock issuable upon exercise of
this Warrant have been registered under the Securities Act of 1933, and neither
this Warrant nor such shares of Common Stock can be sold or transferred unless
and until they are so registered or unless such registration is not then
required under the circumstances of such sale or transfer.

Warrant to purchase up to (50,000) fifty thousand shares of Common Stock Dated
November 15, 2001 Cherry Hill New Jersey.

This certifies that for value received, Chesterbrook Partners Inc. (CP) is
entitled to subscribe for and purchase from (MTC), a corporation organized and
existing under the laws of the State of New Jersey, at the price of $.25 per
share for 50,000 shares subject to this Warrant and its terms and conditions.
This five (5) year Warrant shall be exercisable from and after November 15, 2001
up to November 15, 2006, its expiration date.

This warrant is TOTALLY ASSIGNABLE by (CP) at any time, such assignment effected
by notice of such assignment received and acknowledged by Mediscience Technology
Corp. at its office 1235 Folkstone Way, Cherry Hill NJ 08034.

It is understood that the holder of this warrant has no anti-dilution rights and
shall have none of the rights, privileges or liabilities of the shareholders of
the company in law or equity prior to written notice to Mediscience Technology
of the exercise of this warrant.

In witness hereof Mediscience Technology Corporation has caused this warrant to
be signed by its duly authorized officer under its corporate seal.

/s/Peter Katevatis                         /s/Ned H. Elgart
------------------                         ----------------
Peter Katevatis, Chairman/CEO               Accepted:Chesterbrook Partners Inc.
Mediscience Technology Corp.                By: Ned H. Elgart, President
November 15, 2001
Cherry Hill NJASSIGNMENT DATE : Dec 3/ 2001 (50,000)
                                                    ----------------------------
                                                     June 21/ 2002 (50,000)

Chesterbrook Partners Inc. hereby executes an assignment of all its existing
right, title and interest in a Mediscience Technology Warrant issued to and
accepted by Chesterbrook Partners Inc. on November 15, 2001, attached hereto
representing the right to purchase 100,000 shares of Mediscience Common Shares
at $.25 per share.

This assignment is subject to all terms of the underlying warrant and is
immediately vested and effective upon notice to Mediscience Technology by
Chesterbrook Partners Inc. in accordance with its terms.

By my signature below, and intending to be legally bound pursuant to the laws of
the State of New Jersey I hereby execute this assignment.

To         William Baker
  ------------------------------------------------------------------------------
          PO Box 7432
  ------------------------------------------------------------------------------
          DELRAY BEACH, FLA 33482
  ------------------------------------------------------------------------------

/s/Ned H. Elgart
-----------------------------
Chesterbrook Partners Inc. by
Ned H. Elgart, President
PO Box 81234
Boca Raton Florida, 33481ASSIGNMENT DATE :   12/21/2001
                                                    ----------------------------

Chesterbrook Partners Inc. hereby executes an assignment of all its existing
right, title and interest in a Mediscience Technology Warrant issued to and
accepted by Chesterbrook Partners Inc. on November 15, 2001, attached hereto
representing the right to purchase 50,000 shares of Mediscience Common Shares
at $.25 per share.

This assignment is subject to all terms of the underlying warrant and is
immediately vested and effective upon notice to Mediscience Technology by
Chesterbrook Partners Inc. in accordance with its terms.

By my signature below, and intending to be legally bound pursuant to the laws of
the State of New Jersey I hereby execute this assignment.

To     Laurence B. Elgart
  ------------------------------------------------------------------------------
       254 Park Ave South Apt 5M
  ------------------------------------------------------------------------------
       New York NY 10010
  ------------------------------------------------------------------------------

/s/Ned H. Elgart
-----------------------------
Chesterbrook Partners Inc. by
Ned H. Elgart, President
PO Box 81234
Boca Raton Florida, 33481Subject: shareholder relations agreement with Mediscience Technology (MTC)
Date: April 1, 2004

Whereas: (CP) has acted in the capacity of shareholder relationship on behalf of
(MTC) for the past 14 years and wishes to continue to represent (MTC) and its
Board of Directors/Officers to the financial community maintaining an informed
shareholder base and,

Whereas, (MTC) regards such activity as vital to its corporate SEC Full
Reporting (FR) obligations which are obligatory continuing under Sarbanes
Legislation, represented by periodic SEC 8-K filings and the constant up-dating
of the Company's web pg.
MEDISCIENCETECH.com and,

Therefore (CR ) and (MTC) hereby agree that as consideration for the above
services for the fiscal year 2004 through February 28, 2005 (CR) shall be
entitled to and receive the sum of $2,000.00 per month and be issued 200,000
Shares of (MTC) as SEC restricted Rule 144 Common.

NOTICE: (CP) 32 Seabreeze Ave. #C Delray Beach Fla. 33483 (561) 274 7420
        (MTC) 1235 Folkstone Way Cherry Hill NJ 08034 (215) 485 0362

The parties intending to be legally bound pursuant to the Law of the State of
New York herein affix their respective d/signatures

/s/ Peter Katevalis
-------------------------
Mediscience Technology Corp.

/s/Ned H. Elgart
--------------------------
Chesterbrook Partners Inc.

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