DEFA14A

                            SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934
                                (Amendment No. )

Filed by the Registrant [ X ] Filed by a Party other than the Registrant [ ]

Check the appropriate box:
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          14a-6(e)(2))
   [   ]  Definitive Proxy Statement
   [ X ]  Definitive Additional Materials
   [   ]  Soliciting Material Pursuant to Rule 14a-11(c) or Rule 14a-12

               Consolidated Edison Company of New York, Inc.
            (Name of  Registrant  as Specified  In Its Charter)


   (Name of Person(s) Filing Proxy Statement if other than the Registrant)

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EX-99

Con Edison Letterhead                                        November 24, 1997

                              AN IMPORTANT REMINDER

Dear Stockholder:

      We recently mailed you proxy material for Con Edison's  Special Meeting of
Stockholders to be held on December 12, 1997. The meeting was called to consider
a proposal to form a holding  company  structure.  According to our records,  we
have not yet  received  your proxy vote for this  meeting.  If you have  already
replied,  please  accept  our  thanks  for your  prompt  attention  to this very
significant matter.

       We at Con Edison,  and our Board of Trustees,  are very excited about the
holding company proposal and strongly recommend that you vote for this important
initiative.  The  holding  company is  important  for the  future  growth of the
Company.  It will give the Company the financial and  regulatory  flexibility to
participate  successfully  in those segments of the energy  business in which we
have been operating for many years but which are now becoming competitive and to
provide new competitive services to customers, while maintaining the strength of
our core regulated  electric,  gas and steam utility  business.  Holding company
structures  have been adopted  successfully  in recent years by many other large
utilities  in the  United  States.  The proxy  materials  also  provide  you the
opportunity to consider and vote on a proposal to amend Con Edison's Certificate
of Incorporation regarding the authorized number of Board members.

       Your Board of Trustees and  management  team recommend that you vote
              FOR the two proposals to be considered at the meeting.

      Your vote is  important,  regardless  of the number of shares you own. The
holding  company  proposal  requires the  affirmative  vote of two-thirds of the
Common and $5 Cumulative Preferred shares outstanding.

Not  voting at all or voting to  abstain  will have the same  effect as voting
against the holding  company  proposal.  Therefore,  please take a few minutes
today to sign, date and return the enclosed proxy card in the postage-paid 
envelope provided.

      If you have any questions or need assistance in voting your shares, please
do not hesitate to call our special  toll-free number at 1-800-566-9061 to reach
a representative of Morrow & Company,  which is assisting us with  administering
the proxy vote. Thank you for your continued support.

                                          Sincerely yours,
                                          s/Eugene R. McGrath
                                          Eugene R. McGrath

 We  apologize  if this letter has reached you after you sent in your proxy card
 but, because of the possibility of mail delays or misdeliveries,  please sign,
 date and return the enclosed proxy even if you returned the original.