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. 2 to the Registration Statement on Form S-3 (No. 33-55851) of our report dated January 11, 1995 appearing on page 41 of J.P. Morgan & Co. Incorporated's Annual Report on Form 10-K for the year ended December 31, 1994 (included in J.P. Morgan & Co. Incorporated's Annual Report to Stockholders). We also consent to the reference to us under the heading "Experts" in such Prospectus. PRICE WATERHOUSE LLP New York, New York April 19, 1995