FILE NO. 333-59997
                                                                  RULE 424(B)(3)
 
                             PROSPECTUS SUPPLEMENT
         (TO PROSPECTUS AND PROSPECTUS SUPPLEMENT DATED JULY 30, 1998)
 
                                     PROSPECTUS NUMBER: 1845
 
 
 
                           MERRILL LYNCH & CO., INC.
                          MEDIUM-TERM NOTES, SERIES B
                   DUE NINE MONTHS OR MORE FROM DATE OF ISSUE
                           CALLABLE FIXED RATE NOTES
 
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PRINCIPAL AMOUNT:        $45,000,000
 
 
CUSIP NUMBER:            59018 Z80
 
 
INTEREST RATE:           6.33000%
 
 
ORIGINAL ISSUE DATE:     February 25, 1999
 
 
STATED MATURITY DATE:    February 25, 2014
 
 
INTEREST PAYMENT DATES:  25th day of each month commencing on March 25, 1999, through and including
                         the Stated Maturity Date, subject to the following business day convention.
 
 
 
REPAYMENT AT THE OPTION
OF THE HOLDER:           The Notes cannot be repaid prior to the Stated Maturity Date.
 
 
REDEMPTION AT THE OPTION
OF THE COMPANY:          The Notes may be redeemed prior to the Stated Maturity Date, See "Other
                         Provisions"
 
 
INITIAL REDEMPTION DATE: February 25, 2003
 
 
OTHER PROVISIONS:        The Notes are subject to redemption at the option ML&Co., in whole, semi-
                         annually on each February 25 and August 25 commencing February 25, 2003, at
                         a redemption price equal to 100% of the principal amount of the Notes upon
                         at least 30 days prior notice.
 
 
FORM:                    The Notes are being issued in fully registered book-entry form.
 
 
TRUSTEE:                 The Chase Manhattan Bank
 
 
DATED:                   February 10, 1999
 
 
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