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:
   [   ]  Preliminary Proxy Statement
   [   ]  Confidential, for Use of the Commission Only (as permitted by Rule
          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

The following message is being posted for employees to see:

                                                           No. 45 - 12/08/97

Con Edison Holding Company Proxy Vote

Employees  who own Company stock have received  proxy  materials  asking them to
vote on a proposal to form a holding company  structure for Con Edison.  We urge
you to vote for the holding  company  proposal.  If you haven't done so already,
please sign, date and return your proxy card promptly. In order for your vote to
count, it must be received before the December 12 stockholders' meeting.

Con Edison  employees own  approximately 9 million shares or about 4 per cent of
the Company,  and our votes could make the  difference  as to whether or not the
holding  company  proposal is  approved.  The  approval  of the holding  company
requires a two-thirds  vote of the  outstanding  shares of Con  Edison's  Common
Stock and $5 Cumulative  Preferred  Stock.  Failing to vote or voting to abstain
will have the same effect as voting against the holding  company  proposal.  The
following questions and answers may clarify some points:

Q.  What is a holding company and who else has one in the utility industry?

A: A holding  company is a form of  corporate  structure  with a parent  company
owning a number of  subsidiaries.  It will  provide  the  Company  with  greater
flexibility to take advantage of business opportunities to grow the business. In
recent years, some of the largest American utilities such as Southern California
Edison,  Pacific Gas and Electric,  and Commonwealth  Edison have formed holding
companies.

Q: Should I care if Con Edison succeeds in forming its proposed holding company?

A: YES! The holding company  structure will put the Company in the best possible
position to address the changes in the electric and natural gas industries.  The
holding company structure will provide the needed  flexibility to take advantage
of new business  opportunities in the fast changing  competitive energy markets,
while we maintain  the  strength of the  Company's  core  utility  business.  We
believe  that  the  holding  company   structure  will  benefit  our  customers,
shareholders, and employees.

Q:    How will stock-based and other employee benefit plans be affected?

A: Con Edison's Thrift Savings Plan for Management Employees,  Tax Reduction Act
Stock  Ownership  Plan  (TRASOP),  Retirement  Income  Savings  Plan for  Weekly
Employees,  and Discount Stock Purchase Plan (DISCOP) will be amended to provide
for the new holding company stock instead of Con Edison Common Stock. Con Edison
Common  stock held in these plans will  automatically  become an equal number of
shares in the new holding company.

If you own stock,  either directly or in one of these plans and haven't received
your proxy materials or have misplaced your proxy materials, and haven't already
called Con Edison Investor  Services or E-mailed Dennis Jawor (jawor.d on Emc2),
please do so promptly. Provide your name, social security number, work location,
telephone number,  and the name of the plan in which you hold the shares,  i.e.,
Management Savings Plan, TRASOP, Weekly Savings Plan, or DISCOP.