SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                _______________

                                    FORM 8-A

               FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES
                    PURSUANT TO SECTION 12(b) OR (g) OF THE
                        SECURITIES EXCHANGE ACT OF 1934

                           Merrill Lynch & Co., Inc.
                          -----------------------------
             (Exact name of registrant as specified in its charter)

                Delaware                                13-2740599
             --------------                           -------------
        (State of incorporation or organization)       (I.R.S. Employer 
                                                      Identification No.)


                      World Financial Center
                      North Tower
                      250 Vesey Street
                      New York, New York                        10281  
                 -----------------------------                --------
       (Address of principal executive offices)              (Zip Code)




Securities to be registered pursuant to Section 12(b) of the Act:

Title of each class               Name of each exchange on which
to be so registered               each class is to be registered
- -------------------               ------------------------------

Nikkei Stock Index 300 Call          American Stock Exchange
Warrants, Expiring
January   , 1997



Securities to be registered pursuant to Section 12(g) of the Act:

                                None
- -------------------------------------------------------------------
                          (Title of class)
 
Item 1.  Description of Registrant's Notes to be Registered.
         -------------------------------------------------- 
 
          The description of the general terms and provisions of the Nikkei
Stock Index 300 Call Warrants, Expiring January   , 1997 to be issued by Merrill
Lynch & Co., Inc. (the "Warrants") set forth in the Preliminary Prospectus
Supplement dated January 6, 1995, and the Prospectus dated March 24, 1994,
attached hereto as Exhibit 99(a) is hereby incorporated by reference and
contains certain proposed terms and provisions.  The description of the Warrants
contained in the Prospectus Supplement to be filed pursuant to Rule 424(b) under
the Securities Act of 1933, as amended, under Registration Statement Number 33-
52647, which will contain the final terms and provisions of the Warrants,
including the expiration date, is hereby deemed to be incorporated by reference
into this Registration Statement and to be a part hereof.

Item 2.  Exhibits.
         -------- 

          99(a)  Preliminary Prospectus Supplement dated 
                 January 6, 1995, and Prospectus dated March 
                 24, 1994.

          99(b)  Form of Global Call Warrant (attached as 
                 Exhibit A to Exhibit 99(c) hereto).

          99(c)  Form of Call Warrant Agreement between 
                 Merrill Lynch & Co., Inc. and Citibank, N.A., 
                 as Warrant Agent.



          Other securities issued by Merrill Lynch & Co., Inc. are listed on the
American Stock Exchange.


                                   SIGNATURE

          Pursuant to the requirements of Section 12 of the Securities Exchange
Act of 1934, the registrant has caused this registration statement to be signed
on its behalf by the undersigned, thereto duly authorized.


                              MERRILL LYNCH & CO., INC.


                              By: /s/ Gregory T. Russo
                                  ------------------------
                                       Gregory T. Russo
                                          Secretary


Date:   January 27, 1995

                                       2

 
                       SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C.  20549



                           MERRILL LYNCH & CO., INC.



                                    EXHIBITS
                                       TO
                        FORM 8-A DATED JANUARY 27, 1995



                                    Commission File No. 1-7182
 
                               INDEX TO EXHIBITS
                               -----------------


Exhibit No.                                             Page No.
- ----------                                              ------- 

   99(a)       Preliminary Prospectus
               Supplement dated January 6, 1995,
               and Prospectus dated March 24, 1994.

   99(b)       Form of Global Call Warrant 
               (attached as Exhibit A to
               Exhibit 99(c) hereto).

   99(c)       Form of Call Warrant Agreement 
               between Merrill Lynch & Co., Inc. and 
               Citibank, N.A., as Warrant Agent.