Exhibit 23 (a) CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference in the Prospectus constituting part of this Post-Effective Amendment No. 1 to the Registration Statement on Form S-3 (No. 33-55851) of our report dated January 12, 1994 appearing on page 36 of J.P. Morgan & Co. Incorporated's Annual Report on Form 10-K for the year ended December 31, 1993. We also consent to the reference to us under the heading "Experts" in such Prospectus. PRICE WATERHOUSE LLP New York, New York March 13, 1995