MARTEK BIOSCIENCES CORP
SC 13G/A, 1999-06-09
BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES)
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              Washington D.C. 20549



                                  SCHEDULE 13G


                    Under the Securities Exchange Act of 1934
                               (Amendment No. __ )

                            MARTEK BIOSCIENCES CORP.
                                (Name of Issuer)

                     Common Stock, par value $.10 per share
                         (Title of Class of Securities)

                                    572901106
                                 (CUSIP Number)

                                  May 28, 1999
             (Date of Event Which Requires Filing of this Statement)

     Check the appropriate box to designate the rule pursuant to which this
                               Schedule is filed.

     [ ]  Rule 13d-1(b)

     [X]  Rule 13d-1(c)

     [ ]  Rule 13d-1(d)

       * 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 the disclosures provided in a prior cover page.

       The information required in the remainder of this cover page 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).

                                       1
<PAGE>



CUSIP No. 572901106        13G                                 Page 2 of 6 Pages
- - - - - - - - - - - - - - - - - --------------------------------------------------------------------------------
1.   Names of Reporting Persons.
     I.R.S. Identification  Nos. Of Above Persons (entities only)

         George Weaver Haywood
- - - - - - - - - - - - - - - - - --------------------------------------------------------------------------------
2.   Check the Appropriate Box if a Member of a Group   (See Instructions)
         (a)  [ ]
         (b)  [ ]
- - - - - - - - - - - - - - - - - --------------------------------------------------------------------------------
3.   SEC Use Only

- - - - - - - - - - - - - - - - - --------------------------------------------------------------------------------
4.   Citizenship or Place of Organization

     U.S.A.
- - - - - - - - - - - - - - - - - --------------------------------------------------------------------------------

Number of Shares Beneficially Owned by Each Reporting Person With

- - - - - - - - - - - - - - - - - --------------------------------------------------------------------------------
5.   Sole Voting Power             1,007,907
- - - - - - - - - - - - - - - - - --------------------------------------------------------------------------------
6.   Shared Voting Power               -
- - - - - - - - - - - - - - - - - --------------------------------------------------------------------------------
7.   Sole Dispositive Power        1,007,907
- - - - - - - - - - - - - - - - - --------------------------------------------------------------------------------
8.   Shared Dispositive Power          -
- - - - - - - - - - - - - - - - - --------------------------------------------------------------------------------
9.   Aggregate Amount Beneficially  Owned by Each Reporting Person

                                   1,007,907
- - - - - - - - - - - - - - - - - --------------------------------------------------------------------------------
10.  Check box if the  Aggregate  Amount in Row (9) Excludes Certain Shares
     (See Instructions).   [ ]
- - - - - - - - - - - - - - - - - --------------------------------------------------------------------------------
11.  Percent of Class Represented By Amount in Row (9)

                           6.1
- - - - - - - - - - - - - - - - - --------------------------------------------------------------------------------
12.  Type of Reporting Person (See Instructions)

                           IN

                                       2
<PAGE>


Item 1(a)   Name of Issuer:

               Martek Biosciences Corp.

Item 1(b)   Address of Issuer's Principal Executive Offices:

               6480 Dobbin Road, Columbia, Maryland 21045

Item 2(a)   Name of Person Filing:

            George Weaver Haywood


Item 2(b)   Address of Principal Business Office or, if none, Residence:

            642 Second Street, Brooklyn, New York 11215


Item 2(c)   Citizenship:

            U.S.A.


Item 2(d)   Title of Class of Securities:

            Common Stock, par value .10 per share

Item 2(e)   CUSIP Number

               572901106

Item 3.     If this  statement  is filed  pursuant to Rules  13d-1(b),  or
            13d-2(b) or (c), check whether the person filing is a:

            (a) [ ] Broker or dealer registered under Section 15 of the Act
                (15 U.S.C. 78c).

            (b) [ ] Bank as defined in Section 3(a)(6) of the Act
                (15 U.S.C.78c).

            (c) [ ] Insurance  company as defined in Section  3(a)(19)
                of the Act (15 U.S.C. 78c).

            (d) [ ] Investment  company  registered under Section 8 of
                the Investment Company Act of 1940 (15 U.S.C. 80a-8).

            (e) [ ] An investment  adviser in accordance  with Section
                240.13d-1(b)(1)(ii)(E).

            (f) [ ] An  employee  benefit  plan or  endowment  fund in
                accordance with Section 240.13d-1(b)1(ii)(F).

            (g) [ ] A parent  holding  company  or  control  person in
                accordance with Section 240.13d-

                                       3

<PAGE>

                1(b)(ii)(G).

            (h) [ ] A savings  association  as defined in Section 3(b)
                of the Federal Deposit Insurance Act (12 U.S.C. 1813).

            (i) [ ] A church plan that is excluded from the definition
                of an investment company under Section 3(c)(14) of the
                Investment Company Act of 1940 (15 U.S.C. 80a-3)

            (j) [ ] Group, in accordance with Section 240.13d-1(b)(1)(ii)(J).

     If this statement is filed pursuant to Rule 13d-1(c), check this box.  [X]

Item 4.   Ownership.

            (a)  Amount Beneficially Owned:    1,007,907

            (b)  Percent of Class:             6.1

            (c) Number of shares as to which such person has:

                  (i)   sole power to vote or to direct the vote:     1,007,907

                  (ii)  shared power to vote or to direct vote:           -

                  (iii) sole power to dispose or to direct the disposition of:
                                                                      1,007,907

                  (iv)  shares power to dispose or to direct the disposition of:
                                                                          -

                                       4
<PAGE>


Item 5.   Ownership of Five Percent or Less of a Class.

          Not applicable

Item 6.   Ownership of More than Five Percent on Behalf of Another Person.

          Not applicable


Item 7.   Identification and Classification of the Subsidiary Which Acquired the
          Security Being Reported On By the Parent Holding Company.

          Not applicable.

Item 8.   Identification and Classification of Members of the Group.

          Not applicable.

Item 9.   Notice of Dissolution of Group.

          Not applicable.

                                       5

<PAGE>

Item 10. Certification.

         By signing  below I certify  that,  to  the  best of my  knowledge  and
belief, the  securities  referred to above were not  acquired  and are not being
held for the purpose  of  or  with  the  effect  of changing or influencing  the
control of the issuer of the  securities  and were not acquired and are not held
in  connection  with or as a participant in any transaction having that purposes
or effect.

                                    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.

                                            Date:     June 9, 1999




                                            ------------------------------------
                                                   Signature


                                               George Weaver Haywood
                                            ------------------------------------
                                                   Name

ATTENTION:   INTENTIONAL  MISSTATEMENTS  OR OMISSIONS OF FACT CONSTITUTE FEDERAL
CRIMINAL VIOLATIONS(SEE 18 U.S.C. 1001).





                                      6


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