SECURITIES AND EXCHANGE COMMISSION


                             Washington, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT

                       Pursuant to Section 13 or 15(d) of
                      the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):  August 4, 1999
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                           Merrill Lynch & Co., Inc.
                           -------------------------
             (Exact name of Registrant as specified in its charter)

       Delaware                 1-7182              13-2740599

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         (State or other           (Commission        (I.R.S. Employer
          jurisdiction of           File Number)       Identification No.)
          incorporation)

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

Registrant's telephone number, including area code: (212) 449-1000
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         (Former name or former address, if changed since last report.)

Item 5.  Other Events
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     Exhibits are filed herewith in connection with the Registration Statements
on Form S-3 (File Nos. 333-59997 and 333-68747) filed by Merrill Lynch & Co.,
Inc. (the "Company") with the Securities and Exchange Commission covering Senior
Debt Securities issuable under an indenture dated as of April 1, 1983, as
amended through the date hereof, between the Company and The Chase Manhattan
Bank (as so amended, the "Indenture"). The Company will issue $90,000,000
aggregate principal amount of S&P 500 Market Index Target-Term Securities(R) due
August 4, 2006 under the Indenture.  The exhibits consist of the form of
Securities and an opinion of counsel relating thereto.

Item 7.  Financial Statements, Pro Forma Financial Information and Exhibits
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                         EXHIBITS

          (4)            Instruments defining the rights of
                         security holders, including indentures.

                         Form of Merrill Lynch & Co., Inc.'s S&P 500 Market
                         Index Target-Term Securities due August 4, 2006.

          (5) & (23)     Opinion re: legality; consent of counsel.

                         Opinion of Brown & Wood LLP relating to the S&P 500
                         Market Index Target-Term Securities due August 4, 2006
                         (including consent for inclusion of such opinion in
                         this report and in Merrill Lynch & Co., Inc.'s
                         Registration Statements relating to such Securities).



"Market Index Target-Term Securities" is a registered service mark owned by
Merrill Lynch & Co., Inc.
"Standard & Poor's(R)", "Standard & Poor's 500", "S&P 500(R)", "S&P(R)" and
"500" are trademarks of The McGraw-Hill Companies, Inc. and have been licensed
for use by Merrill Lynch Capital Services, Inc., and Merrill Lynch & Co., Inc.
is an authorized sub-licensee.

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                                   SIGNATURE

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

                                        MERRILL LYNCH & CO., INC.
                                        -------------------------
                                              (Registrant)

                                        By:  /s/ John C. Stomber
                                            ---------------------
                                               John C. Stomber
                                           Senior Vice President
                                                    and
                                                 Treasurer

Date:  August 4, 1999

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                      SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                           MERRILL LYNCH & CO., INC.

                         EXHIBITS TO CURRENT REPORT ON
                         FORM 8-K DATED AUGUST 4, 1999



                                                Commission File Number 1-7182

                                 Exhibit Index

Exhibit No.   Description                                               Page
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(4)           Instruments defining the rights of security holders,
              including indentures.

                 Form of Merrill Lynch & Co., Inc.'s S&P 500 Market Index
                 Target-Term Securities due August 4, 2006.

(5) & (23)    Opinion re:  legality; consent of counsel.

                 Opinion of Brown & Wood LLP relating to S&P 500 Market Index
                 Target-Term Securities due August 4, 2006 (including consent
                 for inclusion of such opinion in this report and in Merrill
                 Lynch & Co., Inc.'s Registration Statements relating to such
                 Securities).