BOSTON EDISON CO
424B3, 1994-06-16
ELECTRIC SERVICES
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<PAGE>
    THE INFORMATION CONTAINED HEREIN IS SUBJECT TO COMPLETION OR AMENDMENT.
<PAGE>
                                                               Filed Pursuant to
                                                               Rule 424(b)(3)
                                                               File No. 33-57840

                   SUBJECT TO COMPLETION, DATED JUNE 15, 1994

          PROSPECTUS SUPPLEMENT TO PROSPECTUS DATED FEBRUARY 12, 1993
                            AS AMENDED MARCH 5, 1993

                                2,500,000 SHARES

                             BOSTON EDISON COMPANY

                                  COMMON STOCK
                               ($1.00 PAR VALUE)

                            ------------------------

    The  Company's  Common Stock  is listed  on  the New  York and  Boston Stock
Exchanges under the symbol "BSE". The last reported sale price of the  Company's
Common  Stock on June 13, 1994 on the New York Stock Exchange composite tape was
$27 7/8 per share. See "Recent Dividends and Stock Price Information".

                            ------------------------

THESE SECURITIES HAVE  NOT BEEN APPROVED  OR DISAPPROVED BY  THE SECURITIES  AND
  EXCHANGE   COMMISSION  OR  ANY  STATE  SECURITIES  COMMISSION  NOR  HAS  THE
    SECURITIES   AND   EXCHANGE   COMMISSION   OR   ANY   STATE   SECURITIES
      COMMISSION   PASSED   UPON  THE   ACCURACY   OR  ADEQUACY   OF  THIS
       PROSPECTUS SUPPLEMENT  OR  THE  PROSPECTUS TO  WHICH  IT  RELATES.
           ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.

                            ------------------------

<TABLE>
<CAPTION>
                                               INITIAL PUBLIC          UNDERWRITING            PROCEEDS TO
                                               OFFERING PRICE           DISCOUNT(1)            COMPANY(2)
                                            ---------------------  ---------------------  ---------------------
<S>                                         <C>                    <C>                    <C>
Per Share.................................            $                      $                      $
Total(3)..................................            $                      $                      $
<FN>
- ------------------------
(1)  The  Company  has  agreed  to indemnify  the  Underwriters  against certain
     liabilities, including liabilities under the Securities Act of 1933.

(2)  Before deducting estimated expenses of $200,000 payable by the Company.

(3)  The Company has granted the Underwriters an option for 30 days to  purchase
     up to an additional 375,000 shares at the initial public offering price per
     share,  less the underwriting discount, solely to cover over-allotments. If
     such option is exercised in full, the total initial public offering  price,
     underwriting  discount and  proceeds to  the Company  will be $         , $
     and $      , respectively. See "Underwriting".
</TABLE>

                            ------------------------

    The shares  offered hereby  are offered  severally by  the Underwriters,  as
specified herein, subject to receipt and acceptance by them and subject to their
right  to  reject  any order  in  whole or  in  part.  It is  expected  that the
certificates for the Shares will be ready for delivery in New York, New York, on
or about      , 1994.

GOLDMAN, SACHS & CO.

         A.G. EDWARDS & SONS, INC.

                  KIDDER, PEABODY & CO.
                          INCORPORATED

                                                      LEHMAN BROTHERS

                                                             MERRILL LYNCH & CO.
                                ----------------

            The date of this Prospectus Supplement is       , 1994.
<PAGE>
    IN CONNECTION WITH THIS OFFERING, THE UNDERWRITERS MAY OVER-ALLOT OR  EFFECT
TRANSACTIONS WHICH STABILIZE OR MAINTAIN THE MARKET PRICE OF THE COMMON STOCK OF
THE  COMPANY AT  A LEVEL ABOVE  THAT WHICH  MIGHT OTHERWISE PREVAIL  IN THE OPEN
MARKET. SUCH  TRANSACTIONS MAY  BE EFFECTED  ON  THE NEW  YORK OR  BOSTON  STOCK
EXCHANGES  OR OTHERWISE. SUCH STABILIZING, IF  COMMENCED, MAY BE DISCONTINUED AT
ANY TIME.

                                      S-2
<PAGE>
                               PROSPECTUS SUMMARY

    THE  FOLLOWING  SUMMARY  INFORMATION IS  QUALIFIED  IN ITS  ENTIRETY  BY THE
DETAILED INFORMATION AND STATEMENTS APPEARING IN THIS PROSPECTUS SUPPLEMENT, THE
PROSPECTUS OR  IN THE  DOCUMENTS  INCORPORATED HEREIN  BY REFERENCE.  TERMS  NOT
DEFINED IN THIS PROSPECTUS SUMMARY ARE DEFINED ELSEWHERE HEREIN.

                             BOSTON EDISON COMPANY

<TABLE>
<S>                                               <C>
Business........................................  Generation, purchase, transmission,
                                                  distribution and sale of electric energy.
Service Area....................................  590  square mile area encompassing Boston
                                                  and 39  other Massachusetts  communities,
                                                  with   a   population   of  approximately
                                                  1,500,000.
Installed Electric Generation Capability
(December 1993).................................  Fossil 84%; Nuclear 16%.
</TABLE>

                                  THE OFFERING

<TABLE>
<S>                                               <C>
Securities Offered..............................  2,500,000 shares of  Common Stock,  $1.00
                                                  par value per share.(1)
Shares Outstanding on March 31, 1994............  45,227,121
Common Stock Listed.............................  New  York Stock Exchange and Boston Stock
                                                  Exchange (Symbol: BSE).
Use of Proceeds.................................  The payment of  obligations incurred  for
                                                  capital   expenditures   for  extensions,
                                                  additions   and   improvements   to   the
                                                  Company's plant and properties.
</TABLE>

                  SELECTED CONSOLIDATED FINANCIAL INFORMATION
          (DOLLARS AND SHARES IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)

<TABLE>
<CAPTION>
                                                                                                 TWELVE MONTHS ENDED
                                                         YEARS ENDED DECEMBER 31,                     MARCH 31,
                                                -------------------------------------------  ----------------------------
                                                    1991           1992           1993           1993           1994
                                                -------------  -------------  -------------  -------------  -------------
                                                                                                     (UNAUDITED)
<S>                                             <C>            <C>            <C>            <C>            <C>
INCOME STATEMENT DATA:
Operating Revenues............................     $1,354,501     $1,411,753     $1,482,253     $1,423,000     $1,504,950
Operating and Other Income....................        211,545        218,826        225,908        218,185        230,488
Total AFUDC (Net of Taxes)....................          5,544          4,842          3,928          5,202          3,527
Net Income....................................         94,670        107,298        118,218        108,934        122,578
Weighted Average Number of Shares of Common
 Stock Outstanding............................         39,348         43,144         44,959         43,815         45,050
Earnings per Share of Common Stock............          $1.96          $2.10          $2.28          $2.11          $2.37
Dividends Declared per Share of Common
 Stock........................................         $1.595         $1.655         $1.715          $1.67          $1.73
</TABLE>

                                      S-3
<PAGE>

<TABLE>
<CAPTION>
                                     AS OF MARCH 31, 1994
                              -----------------------------------
                                   ACTUAL        AS ADJUSTED(2)
                              ----------------- -----------------
                                AMOUNT  PERCENT   AMOUNT  PERCENT
                              ----------------- -----------------
<S>                           <C>       <C>     <C>       <C>
                                          (UNAUDITED)
CAPITALIZATION:
Long-Term Debt................ $1,272,645  53.8% $1,272,645  52.3%
Cumulative Preferred Stock....    219,000   9.2%    219,000   9.0%
Common Equity.................    875,103  37.0%    942,500  38.7%
                              ----------------- -----------------
    Total..................... $2,366,748 100.0% $2,434,145 100.0%
                              ----------------- -----------------
                              ----------------- -----------------
Short-Term Debt(3)............ $  207,000       $  139,603
                              ----------        ----------
                              ----------        ----------
<FN>
- ------------------------
(1)  Assumes  the Underwriters' over-allotment option  for 375,000 shares is not
     exercised. See "Underwriting" below.

(2)  Adjusted to reflect the  issuance of the 2,500,000  shares of Common  Stock
     (excluding  the Underwriters' over-allotment option)  at an estimated price
     to the public of  $27 7/8 per  share (the last reported  sale price of  the
     Company's  Common Stock  on June  13, 1994 on  the New  York Stock Exchange
     composite  tape)  and   the  application  of   the  net  proceeds   thereof
     (approximately  $67,397,000) to  the repayment  of short-term indebtedness.
     See "Use of Proceeds".

(3)  Includes $2,000,000 of current portion of long-term securities.
</TABLE>

                                      S-4
<PAGE>
                  RECENT DIVIDENDS AND STOCK PRICE INFORMATION

    The  Company's Common Stock is listed on the New York Stock Exchange and the
Boston Stock Exchange. The high and low sales prices of the Common Stock on  the
New York Stock Exchange composite tape as reported in the Eastern Edition of THE
WALL STREET JOURNAL, and the dividends paid, have been as follows:

<TABLE>
<CAPTION>
                                                                                   PRICE
                                                                            --------------------   DIVIDENDS
                                   YEAR                                       HIGH        LOW        PAID
                                  -----                                     ---------  ---------  -----------
<S>                                                                         <C>        <C>        <C>
1993
  First Quarter...........................................................  $  30 1/2  $  26 3/8   $    .425
  Second Quarter..........................................................     30 7/8     27 7/8        .425
  Third Quarter...........................................................     32 5/8     29 3/4        .425
  Fourth Quarter..........................................................     32 1/4     27 7/8        .425
1994
  First Quarter...........................................................     29 7/8         26        .440
  Second Quarter..........................................................     29 1/8         26        .440
  (through June 13, 1994)
</TABLE>

    See "Dividends and Stock Price Information" in the accompanying Prospectus.

    The  last reported  sale price  of the  Common Stock  on the  New York Stock
Exchange composite tape on  June 13, 1994  was $27 7/8 per  share. At March  31,
1994, the book value of the Company's Common Stock was $19.35 per share.

                              RECENT DEVELOPMENTS

RECENT FINANCIAL RESULTS

    On  April 28, 1994, the Company reported  earnings per common share of $0.35
and $2.37 for the  three and twelve months  ended March 31, 1994,  respectively,
versus  earnings of $0.25 and  $2.11 for the same  periods ended March 31, 1993.
The increase in 1994 first  quarter earnings primarily reflects the  elimination
of  certain purchased power expenses associated with a $60,000,000 contract that
expired on October 31, 1993, an annual rate increase of $29,000,000 which became
effective November 1, 1993 and a  3.1% increase in retail electricity sales  due
in   part  to  weather  conditions.  These   were  partially  offset  by  higher
depreciation and amortization, due partly to  the amortization of costs in  1994
associated  with the cancelled Pilgrim  2 nuclear unit, for  which there were no
expenses in 1993 as approved by the Massachusetts Department of Public Utilities
(the "MDPU"), increases in pension and other employee benefit expenses, as  well
as  higher income  tax expenses  as a  result of  MDPU-approved adjustments that
reduced the effective tax rate in 1993.

MANAGEMENT CHANGES

    On April 28,  1994, the Company  announced that Thomas  J. May, the  current
President  of the Company, had been elected Chairman and Chief Executive Officer
of the Company effective July 1, 1994, and that Executive Vice President  George
W.  Davis  had  been elected  to  serve  as the  Company's  President  and Chief
Operating Officer,  also effective  July 1.  Bernard W.  Reznicek announced  his
retirement as Chairman and Chief Executive Officer as of July 1, 1994.

                                      S-5
<PAGE>
                                USE OF PROCEEDS

    The  Company will use the net proceeds from the sale of the shares of Common
Stock offered hereby for the payment of obligations incurred under bank lines of
credit and commercial paper for  capital expenditures for extensions,  additions
and  improvements to the  Company's plant and  properties. As of  June 13, 1994,
such lines of credit and commercial  paper had a weighted average interest  rate
of 4.42% and a weighted average maturity of 20 days.

                                 LEGAL OPINIONS

    The  validity of the  shares of Common  Stock offered hereby  will be passed
upon for  the  Company  by  Ropes  &  Gray,  One  International  Place,  Boston,
Massachusetts, counsel for the Company, and for the Underwriters by Choate, Hall
&  Stewart, Exchange Place, 53 State  Street, Boston, Massachusetts, counsel for
the Underwriters.  Thomas G.  Dignan,  Jr., a  partner of  Ropes  & Gray,  is  a
Director of the Company.

                                    EXPERTS

    The  consolidated balance sheets of the Company  as of December 31, 1993 and
1992 and  the consolidated  statements of  income, retained  earnings, and  cash
flows  for each of the  three years in the period  ended December 31, 1993, have
been incorporated by  reference herein in  reliance on the  report of Coopers  &
Lybrand, independent accountants, given on the authority of that firm as experts
in accounting and auditing.

    With respect to the unaudited interim consolidated financial information for
the  periods ended  March 31, 1994  and 1993, incorporated  by reference herein,
Coopers & Lybrand  have reported that  they have applied  limited procedures  in
accordance  with  professional  standards  for  a  review  of  such information.
However, their separate  report included  in the Company's  Quarterly Report  on
Form  10-Q for the quarter  ended March 31, 1994,  and incorporated by reference
herein, states that they  did not audit  and they do not  express an opinion  on
that  interim  consolidated financial  information.  Accordingly, the  degree of
reliance on their report  on such information should  be restricted in light  of
the  limited nature of the review procedures  applied. Coopers & Lybrand are not
subject to the liability provisions of Section 11 of the Securities Act of 1933,
as amended (the "Act"), for their  report on the unaudited interim  consolidated
financial  information because such report is not a "report", or a "part" of the
registration statement prepared  or certified  by Coopers &  Lybrand within  the
meaning of Sections 7 and 11 of the Act.

                                      S-6
<PAGE>
                                  UNDERWRITING

    Subject  to the terms and conditions  of the Purchase Agreement, the Company
has agreed to sell  to each of  the Underwriters named below,  and each of  such
Underwriters,  for whom Goldman, Sachs & Co., A.G. Edwards & Sons, Inc., Kidder,
Peabody &  Co. Incorporated,  Lehman Brothers  Inc. and  Merrill Lynch,  Pierce,
Fenner  & Smith Incorporated are acting as representatives, has severally agreed
to purchase from the  Company, the respective number  of shares of Common  Stock
set forth opposite its name below:

<TABLE>
<CAPTION>
                                                                                                      NUMBER OF
                                                                                                      SHARES OF
                                           UNDERWRITER                                              COMMON STOCK
- -------------------------------------------------------------------------------------------------  ---------------
<S>                                                                                                <C>
Goldman, Sachs & Co..............................................................................
A.G. Edwards & Sons, Inc.........................................................................
Kidder, Peabody & Co. Incorporated...............................................................
Lehman Brothers Inc..............................................................................
Merrill Lynch, Pierce, Fenner & Smith
          Incorporated...........................................................................

                                                                                                   ---------------
Total............................................................................................       2,500,000
                                                                                                   ---------------
                                                                                                   ---------------
</TABLE>

    Under  the terms and conditions of  the Purchase Agreement, the Underwriters
are committed to take and pay for all  of the shares offered hereby, if any  are
taken.

    The  Underwriters  propose  to offer  the  shares  of Common  Stock  in part
directly to the public  at the initial  public offering price  set forth on  the
cover  page of  this Prospectus  Supplement, and  in part  to certain securities
dealers at such price less a concession of  $   per share. The Underwriters  may
allow, and such dealers may reallow, a concession not to exceed $   per share to
certain  brokers and dealers. After the shares  of Common Stock are released for
sale to the public, the offering price and other selling terms may from time  to
time be varied by the representatives of the Underwriters.

                                      S-7
<PAGE>
    The  Company  has  granted the  Underwriters  an option  exercisable  for 30
calendar days after the date of this Prospectus Supplement to purchase up to  an
aggregate of 375,000 additional shares of Common Stock to cover over-allotments,
if   any.  If  the  Underwriters   exercise  their  over-allotment  option,  the
Underwriters have severally agreed, subject  to certain conditions, to  purchase
approximately  the  same percentage  thereof  that the  number  of shares  to be
purchased by  each of  them,  as shown  in the  foregoing  table, bears  to  the
2,500,000  shares of Common Stock offered  hereby. The Underwriters may exercise
such option only  to cover over-allotments  in connection with  the sale of  the
2,500,000 shares of Common Stock offered hereby.

    The Company has agreed not to offer, sell or otherwise dispose of any shares
of  Common Stock  for a  period of  90 days  after the  date of  this Prospectus
Supplement (with certain exceptions)  without the prior  written consent of  the
representatives of the Underwriters.

    The Company has agreed to indemnify the several Underwriters against certain
liabilities, including liabilities under the Act.

                                      S-8
<PAGE>
                                 $1,100,000,000
                             BOSTON EDISON COMPANY
                DEBT SECURITIES, CUMULATIVE PREFERRED STOCK AND
                                  COMMON STOCK
                            ------------------------

    Boston  Edison Company (the "Company") may from  time to time offer (i) Debt
Securities (the "New Debt Securities") consisting of unsecured debentures, notes
and/or other evidences of  indebtedness, in one or  more series, (ii) shares  of
its  Cumulative Preferred Stock, $100 par  value (the "New Preferred Stock"), in
one or more series,  and/or (iii) shares  of its Common  Stock, $1.00 par  value
(the  "Common  Stock"), at  an aggregate  initial offering  price not  to exceed
$1,100,000,000 at prices and on terms to  be determined at the time or times  of
sale.  One  or more  series of  the New  Preferred Stock  may be  represented by
Depositary Shares  evidenced by  Depositary  Receipts ("Depositary  Shares")  as
described  herein.  The New  Debt  Securities, New  Preferred  Stock, Depositary
Shares and Common Stock are referred to herein collectively as the "Securities".

    For  each  offering  of  Securities  for  which  this  Prospectus  is  being
delivered,   there  will  be  an  accompanying  Prospectus  Supplement  (each  a
Prospectus  Supplement)  that  sets  forth  the  specific  series   designation,
aggregate  principal amount, maturity or maturities, rate or rates (or manner of
calculation thereof) and times of payment of interest, redemption terms and  any
other special terms of the New Debt Securities, if any, in respect of which this
Prospectus  is  being  delivered;  the specific  series  designation,  number of
shares,  dividend  rate,  redemption  terms,  sinking  fund  or  purchase   fund
provisions,  if any, and any other special  terms of the New Preferred Stock, if
any, in respect of which this Prospectus  is being delivered; and the number  of
shares  and the specific terms  of the offering thereof  of the Common Stock, if
any, in respect of which this Prospectus is being delivered.

    The Company's  Common Stock  is listed  on  the New  York and  Boston  Stock
Exchanges under the symbol "BSE." See "Dividends and Stock Price Information."

    The  Securities  may  be sold  directly  by  the Company  or  through agents
designated from time to time  or through underwriters or  dealers or a group  of
underwriters  represented  by one  or more  underwriters. If  any agents  of the
Company or  any underwriters  are involved  in  any sale  of the  Securities  in
respect of which this Prospectus is being delivered, the names of such agents or
underwriters,  the initial public offering  price, any applicable commissions or
discounts and the net proceeds to the  Company from such sale will be set  forth
in  a Prospectus Supplement. See  "Description of Debt Securities", "Description
of Cumulative Preferred  Stock", "Description  of Capital Stock",  and "Plan  of
Distribution" herein.
                            ------------------------

THESE  SECURITIES HAVE  NOT BEEN APPROVED  OR DISAPPROVED BY  THE SECURITIES AND
 EXCHANGE COMMISSION  OR  BY  ANY  STATE  SECURITIES  COMMISSION  NOR  HAS  THE
  SECURITIES  AND  EXCHANGE  COMMISSION  OR  ANY  STATE  SECURITIES COMMISSION
   PASSED  UPON   THE  ACCURACY   OR  ADEQUACY   OF  THIS   PROSPECTUS.   ANY
                 REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
                            ------------------------

                The date of this Prospectus is February 12, 1993
                           as amended March 5, 1993.
<PAGE>
                             AVAILABLE INFORMATION

    Boston  Edison  Company  (the  "Company") is  subject  to  the informational
requirements of the Securities Exchange Act  of 1934, as amended (the  "Exchange
Act"),  and in  accordance therewith files  reports, proxy  statements and other
information with the Securities and Exchange Commission (the "Commission"). Such
reports, proxy statements and other information filed with the Commission can be
inspected and  copied  at the  public  reference facilities  maintained  by  the
Commission  at 450 Fifth Street, N.W., Washington, D.C., and at the Commission's
regional offices  at Northwest  Atrium Center,  500 West  Madison Street,  Suite
1400,  Chicago, Illinois 60661; and Room 1228, 75 Park Place, New York, New York
10007; and copies of such material can also be obtained at prescribed rates from
the Public Reference Section  of the Commission at  its principal office at  450
Fifth  Street, N.W., Washington,  D.C. 20549. Certain  securities of the Company
are listed on  the New  York and Boston  Stock Exchanges,  where reports,  proxy
statements and other information concerning the Company can also be inspected.

    The  Company has filed with the  Commission a registration statement on Form
S-3 (herein,  together with  all amendments  and exhibits,  referred to  as  the
"Registration  Statement") under  the Securities Act  of 1933,  as amended, with
respect to the Securities offered hereby.  This Prospectus does not contain  all
of  the information  set forth in  the Registration Statement,  certain parts of
which  are  omitted  in  accordance  with  the  rules  and  regulations  of  the
Commission.   For  further  information,   reference  is  hereby   made  to  the
Registration Statement.
                            ------------------------

                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

    The following documents filed with the Commission (File No. 1-2301) pursuant
to the Exchange Act are incorporated herein by reference:

        1.  The Company's Annual Report on Form 10-K for the year ended December
    31, 1991, as amended by Form 8 dated June 26, 1992;

        2.  The Company's Quarterly Reports on Form 10-Q for the quarters  ended
    March 31, June 30, and September 30, 1992;

        3.   The Company's Current Reports on  Form 8-K dated September 3, 1992,
    January 28, 1993, and February 11, 1993; and

        4.  All other documents filed by the Company pursuant to Sections 13, 14
    or 15(d) of the Exchange Act subsequent  to the date of this Prospectus  and
    prior to the termination of the offering of the Securities offered hereby.

    Any statement contained in a document incorporated by reference herein shall
be  deemed to be modified  or superseded for purposes  of this Prospectus to the
extent that a  statement contained  herein or  in any  other subsequently  filed
document  which also is incorporated by  reference herein modifies or supersedes
such statement.  Any such  statement  so modified  or  superseded shall  not  be
deemed,  except  as so  modified or  superseded,  to constitute  a part  of this
Prospectus.

    The Company  hereby undertakes  to provide  without charge  to each  person,
including  any beneficial  owner, to  whom a  copy of  this Prospectus  has been
delivered, on the written or oral request of  any such person, a copy of any  or
all  of the documents  incorporated herein by reference,  other than exhibits to
such documents unless specifically incorporated by reference in such  documents.
Requests  for such  copies should be  directed to Theodora  S. Convisser, Clerk,
Boston  Edison  Company,  800  Boylston  Street,  Boston,  Massachusetts  02199,
telephone: (617) 424-2000.

                                       2
<PAGE>
                                  THE COMPANY

    The  Company is  an investor-owned regulated  public utility  engaged in the
energy and energy  services business, which  includes the generation,  purchase,
transmission,  distribution and sale of electric  energy. It was incorporated in
1886 under  the  laws  of  The  Commonwealth  of  Massachusetts.  Its  principal
executive  offices  are located  at 800  Boylston Street,  Boston, Massachusetts
02199, and its main telephone number is (617) 424-2000.

    The Company supplies electricity at retail  to an area of approximately  590
square  miles within 30 miles of Boston, Massachusetts, encompassing the City of
Boston and 39  surrounding cities  and towns.  The population  of the  territory
served  with electricity at  retail is approximately  1,500,000. At December 31,
1992, the  Company  served approximately  650,000  customers. The  Company  also
supplies  electricity at wholesale  for resale to  other utilities and municipal
electric departments. Through  Harbor Electric  Energy Company,  a wholly  owned
subsidiary, the Company provides distribution service to the Massachusetts Water
Resource  Authority's wastewater  treatment facility  on Deer  Island in Boston,
Massachusetts.

    For the year ending  December 31, 1992, approximately  85% of the  Company's
revenues  were derived from  retail electric sales,  13% from wholesale electric
sales and  2%  from other  sources.  Sources of  installed  electric  generation
capability in 1992 were 81% fossil and 19% nuclear.

                                USE OF PROCEEDS

    The Company may use the net proceeds from the sale of the Securities offered
hereby  for  any or  all  of the  following  purposes: (i)  for  the redemption,
repurchase or payment  at maturity of  any or all  of the following  outstanding
securities  of the  Company: $25,000,000  outstanding principal  amount of First
Mortgage Bonds, Series  I, 4  3/4% due 1995;  $40,000,000 outstanding  principal
amount  of  First  Mortgage  Bonds,  Series  J,  6  1/8%  due  1997; $50,000,000
outstanding principal amount of First Mortgage Bonds, Series K, 6 7/8% due 1998;
$50,000,000 outstanding principal amount of  First Mortgage Bonds, Series L,  9%
due  1999;  $60,000,000 outstanding  principal amount  of First  Mortgage Bonds,
Series M, 9  3/8% due 2000;  $75,000,000 outstanding principal  amount of  First
Mortgage  Bonds, Series  N, 8 1/8%  due 2001;  $60,000,000 outstanding principal
amount of  First  Mortgage  Bonds,  Series  P,  9  1/4%  due  2007;  $59,375,000
outstanding principal amount of First Mortgage Bonds, Series Q, 9 3/4% due 2003;
$44,250,000  outstanding  principal amount  of First  Mortgage Bonds,  Series R,
10.95% due  2004; $25,000,000  outstanding principal  amount of  First  Mortgage
Bonds,   Series  S,  variable  rate   (currently  9.2%)  due  2002;  $15,000,000
outstanding principal amount of Collateralized Pollution Control Revenue  Bonds,
1984  Series A (10.25%)  due 2014; $135,000,000  outstanding principal amount of
First Mortgage  Bonds,  Series  W,  9 1/2%  due  2016;  $50,000,000  outstanding
principal  amount of Series A Medium Term  Notes, 9.75% due 1994; and/or 400,000
outstanding shares of the Company's Cumulative Preferred Stock, 8.88% Series, or
for the payment of obligations of  the Company incurred for such redemptions  or
payments;  (ii)  for the  payment  of obligations  of  the Company  incurred for
capital expenditures for extensions, additions and improvements to the Company's
plant and properties or for the  payment of obligations of the Company  incurred
for  such purposes;  (iii) to make  certain required and  voluntary sinking fund
payments in respect of the Company's issued and outstanding First Mortgage Bonds
and Cumulative Preferred Stock; and/or (iv) for the repayment of short-term debt
balances. As of January 29, 1993,  such short-term debt balances had a  weighted
average interest rate of 3.36% and a weighted average maturity of 21 days.

                                       3
<PAGE>
                        PLANT EXPENDITURES AND FINANCING

    The  Company's current  estimate of plant  expenditures for  the period 1993
through  1996,  which  is  subject  to  continuing  review  and  adjustment,  is
approximately   $790,000,000  (excluding   allowances  for   funds  used  during
construction and  $64,000,000  in  nuclear  fuel  expenditures).  A  significant
portion   of  such  expenditures  relate   to  the  Company's  transmission  and
distribution system.  Funds  generated  internally  (excluding  the  effects  of
certain   settlement  agreements  between  the  Company  and  the  Massachusetts
Department of  Public  Utilities  in  1989 and  the  Federal  Energy  Regulatory
Commission  in  1990)  represented  approximately  90%,  89%  and  73%  of plant
expenditures in 1992, 1991 and 1990, respectively. It is expected that a portion
of future plant expenditures will be  funded internally. It is anticipated  that
the  balance of the Company's plant  expenditures, long-term debt maturities and
sinking fund requirements (the latter two items aggregating $213,535,000 for the
period 1993 through 1996), will be financed  by the issuance of debt and  equity
securities, including the Securities.

                  RATIO OF EARNINGS TO FIXED CHARGES AND RATIO
             OF EARNINGS TO FIXED CHARGES AND PREFERRED DIVIDENDS*

<TABLE>
<CAPTION>
                                                                                 YEARS ENDED DECEMBER 31,
                                                                   -----------------------------------------------------
                                                                     1992       1991       1990       1989       1988
                                                                   ---------  ---------  ---------  ---------  ---------
<S>                                                                <C>        <C>        <C>        <C>        <C>
Ratio of Earnings to Fixed Charges...............................       1.93x      1.86x      1.91x      0.52x      2.08x
Ratio of Earnings to Fixed Charges and
 Preferred Dividends.............................................       1.71x      1.71x      1.73x      0.47x      1.86x
</TABLE>

    Earnings  have been computed by adding the  amount of income taxes and fixed
charges to net  income. Fixed  charges include  gross interest  expense and  the
estimated  interest component  of rentals. The  Company reported a  loss for the
year ended December 31, 1989, primarily as a result of a charge of  $178,650,000
reflecting the settlement of certain regulatory and legal proceedings. Excluding
the effects of such charge, the Ratio of Earnings to Fixed Charges and the Ratio
of  Earnings to Fixed Charges  and Preferred Dividends for  1989 would have been
2.06x and  1.86x,  respectively.  The  Company would  have  needed  to  generate
additional  pre-tax income  of $55,708,000 and  $68,183,000, to  cover its fixed
charges  of  $116,445,000   and  fixed  charges   and  preferred  dividends   of
$128,921,000, respectively, in 1989.
- ------------------------
*No shares of the Company's Preference Stock are currently outstanding, although
 shares  of Preference Stock were outstanding  during each of the periods listed
 above. The Ratio  of Earnings  to Fixed  Charges and  Preferred and  Preference
 Dividends  for each of the years ended  December 31, 1992, 1991, 1990, 1989 and
 1988 were 1.69x, 1.60x, 1.59x, 0.43x and 1.76x, respectively. The Company would
 have needed to generate additional pre-tax  income of $79,784,000 to cover  its
 fixed charges and preferred and preference dividends of $140,522,000 in 1989.

                                       4
<PAGE>
                     DIVIDENDS AND STOCK PRICE INFORMATION

    The  Company's Common Stock is listed on the New York Stock Exchange and the
Boston Stock Exchange. The high and low sales prices of the Common Stock on  the
New York Stock Exchange composite tape as reported in the Eastern Edition of THE
WALL STREET JOURNAL, and the dividends paid, have been as follows:

<TABLE>
<CAPTION>
                                                                                   PRICE
                                                                            --------------------   DIVIDENDS
YEAR                                                                          HIGH        LOW        PAID
- --------------------------------------------------------------------------  ---------  ---------  -----------
<S>                                                                         <C>        <C>        <C>
1991
  First Quarter...........................................................  $  20 1/2  $  18 1/4   $    .395
  Second Quarter..........................................................     20 5/8     19 1/8        .395
  Third Quarter...........................................................     21 3/4     18 3/4        .395
  Fourth Quarter..........................................................     24 7/8     21 1/4        .395
1992
  First Quarter...........................................................  $  24 5/8  $  22 1/8   $     .41
  Second Quarter..........................................................         26     22 3/8         .41
  Third Quarter...........................................................     26 7/8     24 7/8         .41
  Fourth Quarter..........................................................     28 1/4     24 3/4         .41
1993
  First Quarter...........................................................  $  28 3/8  $  26 3/8   $    .425
  (through February 1, 1993)
</TABLE>

    The Company customarily pays dividends on its Common Stock on the first days
of February, May, August and November, to shareholders of record as of the tenth
day  of the preceding month.  Cash dividends have been  paid on the Common Stock
each year since 1890.  Future dividends are subject  to factors that  ordinarily
affect dividend policy, such as earnings, timely and adequate rate increases and
other regulatory action affecting the Company.

    The  reported last  sale price  of the  Common Stock  on the  New York Stock
Exchange composite tape on February 1, 1993  was $28 1/8 per share. At  December
31, 1992, the book value of the Company's Common Stock was $18.71 per share.

                         DESCRIPTION OF DEBT SECURITIES

GENERAL

    The  New Debt  Securities will  be issued  under the  Indenture dated  as of
September 1, 1988  between the Company  and Bank of  Montreal Trust Company,  as
Trustee (the "Trustee"), as supplemented and modified by indentures supplemental
thereto  (the "Indenture"). The  debt securities of all  series issued, or which
may be issued,  under the  Indenture are hereinafter  referred to  as the  "Debt
Securities".  Capitalized terms used in this  section of the Prospectus entitled
"Description of Debt Securities"  and not otherwise  defined in this  Prospectus
shall have the respective meanings ascribed to them in the Indenture.

    The  description  set forth  below  of certain  provisions  of the  New Debt
Securities, the  Debt  Securities and  the  Indenture  does not  purport  to  be
complete  and is subject to, and qualified  in its entirety by reference to, the
instruments constituting the Indenture  which are filed  with the Commission  as
exhibits to the Registration Statement of which this Prospectus is a part.

    The  Indenture provides that, in addition to any New Debt Securities offered
hereby, additional debt securities (including both interest bearing and original
issue discount securities  in both  registered and  bearer form)  may be  issued
thereunder,  without  limitation  as  to  the  aggregate  principal  amount. The
Indenture does not limit the amount  of other debt, secured or unsecured,  which
may  be issued  by the  Company. As  of December  31, 1992,  the Company  had an
aggregate of $435,000,000 principal amount of Debt Securities outstanding  under
the  Indenture,  consisting of  five series.  On February  2, 1993,  the Company
issued and sold $65,000,000 principal amount of 6.80% Debentures Due February 1,
2000

                                       5
<PAGE>
under the Indenture. The Debt Securities are unsecured and rank equally with the
Company's  other  unsecured  indebtedness.  Substantially  all  franchises   and
property  of the Company are  subject to the lien of  the Indenture of Trust and
First Mortgage  dated as  of  December 1,  1940,  as supplemented  and  amended,
between  the Company  and State  Street Bank  & Trust  Company, as  Trustee (the
"First  Mortgage  Indenture").  As  of  December  31,  1992,  the  Company   had
outstanding  $638,625,000  aggregate principal  amount  of First  Mortgage Bonds
under the First Mortgage Indenture.

    The Indenture provides that Debt Securities may be issued at various  times,
may  have differing  stated maturity  dates and  may bear  interest at differing
rates. Unless otherwise indicated in  a Prospectus Supplement relating  thereto,
the  New Debt Securities will  be issued only in  fully registered form, without
coupons, in denominations of $1,000 or any multiple thereof, will be  registered
for transfer or exchange, and principal and interest, if any, will be payable at
the  Corporate Trust  Office of the  Trustee in the  City of New  York, 77 Water
Street, New  York, New  York  10005. No  service charge  will  be made  for  any
transfer or exchange of the Debt Securities, but the Company may require payment
of  a sum  sufficient to  cover any  tax or  other government  charge payable in
connection therewith.

    Unless otherwise indicated in a  Prospectus Supplement relating to a  series
of  New Debt Securities (the "Offered Debt Securities"), there are no provisions
in the Indenture that require  the Company to redeem,  or permit the holders  to
cause  a redemption of,  the New Debt  Securities or that  otherwise protect the
holders  in  the   event  that   the  Company   incurs  substantial   additional
indebtedness,  whether or  not in  connection with  a change  in control  of the
Company.

    Certain other terms and provisions of the New Debt Securities, including the
maturity, rate of  interest, interest payment  dates, redemption provisions  and
whether  any of the Debt Securities are to be issuable in permanent global form,
will be  described  in  a  Prospectus  Supplement  relating  to  such  New  Debt
Securities.

EVENTS OF DEFAULT

    The  following constitute Events of Default under the Indenture with respect
to Debt Securities of any series: (1) default in the payment of principal of any
Debt Security when  due and the  continuation of  such default for  a period  of
three  Business Days thereafter; (2)  default in the payment  of interest on any
Debt Security when due and the continuation thereof for a period of 30 days; (3)
default in the payment of any sinking fund payment when due by the terms of  the
Debt  Securities of the series; (4) default  in the performance or breach of any
covenant or warranty of the Company in  the Indenture (other than a covenant  or
warranty  included in the Indenture solely for the benefit of one or more series
of Debt Securities other than the Offered Debt Securities), and the continuation
thereof for 60  days after  written notice  to the  Company as  provided in  the
Indenture;  (5)  default  in  the  payment  of  principal  or  interest  on,  or
acceleration of, securities of  any other series issued  under the Indenture  or
any other mortgage, indenture or instrument or other evidence of indebtedness of
the  Company for borrowed  money, in an  aggregate amount exceeding $10,000,000,
which default  is  not cured  or  acceleration  not rescinded  or  annulled,  or
indebtedness  not discharged, within 90 days after written notice to the Company
as provided in the  Indenture; (6) certain events  of bankruptcy, insolvency  or
reorganization; and (7) any other Event of Default provided with respect to Debt
Securities of a particular series.

    If  an Event of  Default with respect  to the Debt  Securities occurs and is
continuing, either  the Trustee  or the  Holders of  at least  33% in  aggregate
principal  amount of the  outstanding Debt Securities  may declare the principal
amount of all Debt  Securities to be  due and payable  immediately. At any  time
after  the declaration of  acceleration with respect to  the Debt Securities has
been made,  but before  a judgment  or  decree based  on acceleration  has  been
obtained,  the Holders of a majority in principal amount of the outstanding Debt
Securities  may,   under  certain   circumstances,   rescind  and   annul   such
acceleration.

    The  Indenture  provides that,  subject to  the duty  of the  Trustee during
default to act with the required standard of care, the Trustee will be under  no
obligation   to   exercise   any   of   its   rights   or   powers   under   the

                                       6
<PAGE>
Indenture  at the request or direction of  any of the Holders of the outstanding
Debt  Securities,  unless  such  Holders  shall  have  offered  to  the  Trustee
reasonable  indemnity. Subject to such provisions for the indemnification of the
Trustee, the  Holders  of  33%  in principal  amount  of  the  outstanding  Debt
Securities  will  have  the  right  to direct  the  time,  method  and  place of
conducting any proceeding for any remedy available to the Trustee, or exercising
any trust  or  power  conferred  on  the  Trustee,  with  respect  to  the  Debt
Securities. The right of a Holder of any Debt Security to institute a proceeding
with  respect to the  Indenture is subject to  certain conditions precedent, but
each Holder of  a Debt  Security has  an absolute  right to  receive payment  of
principal and interest when due and to institute suit for the enforcement of any
such  payment. The Indenture provides that the Trustee, within 90 days after the
occurrence of a default with respect to the Debt Securities, is required to give
the Holders  of the  Debt Securities  notice of  such default,  unless cured  or
waived; provided that, except in the case of default in the payment of principal
or  interest on any  Debt Security, the  Trustee may withhold  such notice if it
determines it is in the interest of such Holders to do so.

    The Company will be required to furnish annually to the Trustee a  statement
as  to the performance  by the Company  of certain of  its obligations under the
Indenture and as to default in such performance.

CONSOLIDATION, MERGER, SALE OR CONVEYANCE

    The Indenture provides that the Company may not, without the consent of  the
Holders  of not less than a majority in principal amount (calculated as provided
in the Indenture) of the Outstanding  Securities (as defined in the  Indenture),
consolidate  with or  merge into  any other  corporation or  convey, transfer or
lease its properties and assets substantially as an entirety, unless (i) if  the
Company  is  not the  continuing  corporation, the  successor  corporation shall
assume by a supplemental indenture the Company's obligations under the Indenture
and (ii)  immediately after  giving  effect to  such  transaction, no  Event  of
Default,  and no event which after notice or lapse of time would become an Event
of Default, shall have occurred and be continuing.

MODIFICATION OF THE INDENTURE

    The Indenture contains  provisions permitting the  Company and the  Trustee,
with  the consent of the Holders of not less than a majority in principal amount
(calculated as  provided in  the Indenture)  of the  Outstanding Securities  (as
defined in the Indenture), if all series of Outstanding Securities are affected,
or  the  Holders of  a majority  in  aggregate principal  amount of  each series
affected by such modification, in  case one or more, but  less than all, of  the
series  of Outstanding Securities  are affected, to modify  the Indenture or any
supplemental  indenture  or  the  rights  of  the  Holders  of  the  Outstanding
Securities  of any series; provided that no such modification shall, without the
consent of the Holders of each Outstanding Security affected thereby, change the
maturity of any Outstanding Security, or reduce the principal amount thereof, or
reduce the rate or extend the time of payment of interest thereon, or reduce any
amount payable  upon  redemption of  any  Outstanding Security,  or  reduce  the
overdue  rate thereof or change the currency of payment of principal or interest
on any Outstanding Security or reduce  the above stated percentage in  principal
amount of Outstanding Securities the consent of the Holders of which is required
for  modification  or  amendment  of  the Indenture  or  for  waiver  of certain
defaults, or  change any  obligation of  the Company  to maintain  an office  or
agency in each Place of Payment.

    The  Indenture  also  permits  the  Company and  the  Trustee  to  amend the
Indenture in certain  circumstances without the  consent of the  Holders of  any
Debt  Securities to evidence the merger of the Company or the replacement of the
Trustee and for certain other purposes.

CONCERNING THE TRUSTEE

    Bank of Montreal  Trust Company is  the Trustee and  Paying Agent under  the
Indenture.  The  bank or  one  of its  affiliates has  had  a regular  course of
commercial dealings with  the Company including  participation in its  revolving
credit agreement, and from time to time its working lines of credit.

                                       7
<PAGE>
                   DESCRIPTION OF CUMULATIVE PREFERRED STOCK

GENERAL

    The  description  set forth  below of  certain  provisions of  the Company's
Restated Articles of Organization, as amended,  the laws of The Commonwealth  of
Massachusetts  and  the regulations  of the  Massachusetts Department  of Public
Utilities does not purport to  be complete and is  subject to, and qualified  in
its  entirety by reference to, the  Company's Restated Articles of Organization,
as amended, the laws of The Commonwealth of Massachusetts and the regulations of
the Massachusetts Department of Public Utilities.

    The Cumulative  Preferred Stock  constitutes a  class of  capital stock,  of
which  2,830,000 shares have been authorized, which  may be issued in series and
was created by a vote of the  holders of Common Stock in 1956. See  "Description
of  Capital  Stock".  The  initial  series,  consisting  of  180,000  shares  of
Cumulative Preferred Stock, 4.25% Series, was issued in 1956. The second series,
consisting of 250,000 shares  of Cumulative Preferred  Stock, 4.78% Series,  was
issued  in 1958.  The third series,  consisting of 400,000  shares of Cumulative
Preferred Stock, 8.88% Series, was issued in 1970. The fourth series, consisting
of 500,000 shares of Cumulative Preferred Stock, 7.27% Series, of which  480,000
shares  are  currently  outstanding,  was  issued  in  1987.  The  fifth series,
consisting of  500,000 shares  of  Cumulative Preferred  Stock, 8%  Series,  was
issued  in 1991.  The sixth series,  consisting of 400,000  shares of Cumulative
Preferred Stock, 8 1/4% Series  (evidenced by 1,600,000 depositary shares,  each
representing  a one-fourth  interest in a  share of  Cumulative Preferred Stock,
8 1/4% Series), was  issued in 1992. Each  series of Cumulative Preferred  Stock
may  differ,  as determined  by the  Board  of Directors,  from other  series in
certain respects, the principal differences being as follows: number of  shares,
dividend  rate, the  date of  the first  dividend payment,  the date  from which
dividends will  be cumulative,  redemption prices,  sinking or  purchase  funds,
amounts  payable upon distribution  of assets and  conversion, participation and
other special rights. Holders of Cumulative Preferred Stock are not entitled  to
vote  except in certain circumstances.  See "Description of Cumulative Preferred
Stock -- Voting  Rights." For  further information  relating to  the issued  and
outstanding shares of each series of Cumulative Preferred Stock, see Notes 2 and
3 of Notes to Consolidated Schedules of Capital Stock and Indebtedness contained
in the Company's 1991 Annual Report to Shareholders incorporated by reference in
the Company's Annual Report which is incorporated by reference herein.

    As  set forth  under "Description of  Depositary Shares"  below, the Company
may, at  its option,  elect  to offer  depositary shares  ("Depositary  Shares")
evidenced  by depositary receipts ("Depositary  Receipts"), each such Depositary
Share representing  a  fractional interest  (to  be specified  in  a  Prospectus
Supplement  relating to  a series  of New  Preferred Stock)  in a  share of such
series of the  New Preferred Stock  issued and deposited  with a depositary,  in
lieu  of offering full shares of Cumulative Preferred Stock. Whether the Company
has elected to offer Depositary Shares with respect to a series of New Preferred
Stock will be set forth in a Prospectus Supplement.

DIVIDENDS

    Holders of Cumulative Preferred Stock are  entitled to receive, when and  as
declared  by the  Board of  Directors out  of funds  legally available therefor,
cumulative dividends at the rate fixed for each series, payable quarterly on the
first days  of February,  May, August  and  November in  each year,  before  any
dividends  are paid on the Common Stock or other junior stock. Dividends must be
paid on  all such  shares if  paid on  the shares  of any  series and,  if  full
dividends  are not declared, payments must be made pro rata in proportion to the
rate of dividend fixed for each series.  After payment in full of all  dividends
accrued on Cumulative Preferred Stock, dividends on the Common Stock or any such
junior  stock may be declared and paid  as the Board of Directors may determine.
Dividends on the New Preferred Stock will  be cumulative from the date of  issue
and  payable  at the  rate  per annum  set  forth in  the  Prospectus Supplement
relating to such New Preferred Stock.

REDEMPTION PROVISIONS

    Except as  otherwise set  forth in  the Prospectus  Supplement for  the  New
Preferred  Stock, the Cumulative  Preferred Stock and any  series thereof may be
redeemed as a whole or in part at any time, by

                                       8
<PAGE>
resolution of the Board of Directors, upon not less than thirty days' notice, at
the  applicable  redemption  prices  therefor  plus  dividends  accrued  to  the
redemption  date  except  that  if  there are  any  dividend  arrearages  on any
Cumulative Preferred Stock  no part less  than all of  the Cumulative  Preferred
Stock  may be redeemed or purchased. The redemption prices for the New Preferred
Stock will  be set  forth in  the  Prospectus Supplement  relating to  such  New
Preferred Stock.

LIQUIDATION

    Upon  any  liquidation, dissolution  or  winding up  of  the affairs  of the
Company or distribution of  capital, the holders  of Cumulative Preferred  Stock
are entitled to receive the full distributive amounts fixed for their particular
series,  plus  dividends  accrued  to  the  date  of  distribution,  before  any
distribution shall be  made to holders  of Common Stock  or other junior  stock.
Distributions  of assets on  liquidation must be  pro rata in  proportion to the
amount fixed for  each series,  if less  than payment in  full is  all that  the
available  assets will provide.  The distributive amounts  for the New Preferred
Stock are  equal  to  the  par  value thereof  per  share  if  the  liquidation,
dissolution,  winding up or distribution of capital is involuntary and an amount
equal to the applicable redemption price per share if such action is  voluntary,
together in each case with dividends accrued to the date of distribution.

VOTING RIGHTS

    Holders  of  Common Stock  have general  voting rights,  but holders  of the
Cumulative Preferred Stock, except as otherwise  required by law, have only  the
voting rights set forth below.

    Whenever  dividends on any shares of  any series of the Cumulative Preferred
Stock shall  have accrued  and remain  unpaid in  an amount  equal to  six  full
quarterly  dividends thereon,  holders of  the Cumulative  Preferred Stock shall
have the exclusive right, voting separately as  a class, to elect a majority  of
the  Directors until all  dividends in default  thereon shall have  been paid or
declared and set apart for payment.

    Without the  affirmative vote  of  holders of  at  least two-thirds  of  the
outstanding Cumulative Preferred Stock, the Company shall not:

       (a) change  any provisions of the  Cumulative Preferred Stock which would
           be substantially prejudicial to the holders thereof, except that,  if
    such  change  is  prejudicial to  less  than  all series  thereof,  only the
    affirmative vote of holders of two-thirds of the series so affected shall be
    required; or

       (b) create any class of stock  ranking prior to or  on a parity with  the
           Cumulative  Preferred  Stock  in  respect of  either  the  payment of
    dividends or the distribution of assets.

    Without the  affirmative vote  of holders  of  at least  a majority  of  the
outstanding Cumulative Preferred Stock, the Company shall not:

       (a) issue  any additional shares of Cumulative  Preferred Stock or of any
           class of stock ranking  prior to or on  a parity with the  Cumulative
    Preferred  Stock  in  respect of  either  the  payment of  dividends  or the
    distribution of assets  (except for  the purpose of  retiring stock  ranking
    prior  to  the Cumulative  Preferred Stock  or for  the purpose  of retiring
    Cumulative Preferred Stock  or stock ranking  on a parity  therewith if  the
    shares  issued are  only shares  thereof or  on a  parity therewith) unless,
    after giving effect thereto,

           (i) net income of the Company for any period of twelve months  within
               the  next preceding  fifteen months  (after adding  back interest
       charges on funded debt of the Company deducted in the computation)  shall
       have been at least equal to one and one-half (1 1/2) times the sum of the
       annual  interest charges on funded debt  of the Company to be outstanding
       at the date of  such issue plus the  annual dividend requirements on  the
       Cumulative  Preferred Stock and on any class of stock ranking prior to or
       on a parity with the Cumulative Preferred Stock in respect of either  the
       payment  of  dividends  or the  distribution  of  assets which  is  to be
       outstanding at the date of such issue, including the shares to be  issued
       but  excluding any funded debt or shares of such prior or parity stock to
       be retired in connection with such issue; and

                                       9
<PAGE>
           (ii)the aggregate amount of capital and paid-in premiums  represented
               by  the Common Stock  and any other junior  stock plus the earned
       surplus of the Company would be at least equal to the capital and paid-in
       premiums represented  by the  Cumulative Preferred  Stock and  all  other
       stock ranking prior to or on a parity with the Cumulative Preferred Stock
       in  respect of  either the  payment of  dividends or  the distribution of
       assets to be outstanding after giving effect to such issue but  excluding
       any such stock to be retired in connection therewith; or

       (b) merge  into  or consolidate  with any  other  corporation or  sell or
           transfer its assets as, or substantially as, an entirety, unless such
    merger, consolidation, sale or transfer shall have been required by order of
    the  Massachusetts  Department  of  Public  Utilities  or  other  regulatory
    authority  of  The Commonwealth  of Massachusetts  or  of the  United States
    having jurisdiction in the premises, or  unless, in the case of such  merger
    or consolidation, the Company shall itself be the successor corporation. The
    term  "sale or transfer" includes a lease or exchange but does not include a
    mortgage or pledge.

PRE-EMPTIVE RIGHTS

    Holders of Cumulative Preferred  Stock will not  have pre-emptive rights  in
respect of additional issues of capital stock.

OTHER PROVISIONS

    Any  sinking or purchase fund or  conversion, participation or other special
rights for  the  New  Preferred  Stock  will  be  described  in  the  Prospectus
Supplement  relating to such New Preferred  Stock. The New Preferred Stock, when
issued and paid for at the price determined by the Directors, will be fully paid
and not liable for further call or assessment.

    The Transfer Agent and Registrar for the Company's capital stock,  including
the  New Preferred  Stock, is  The First  National Bank  of Boston,  100 Federal
Street, Boston, Massachusetts 02110.

    In New York City, shares of Cumulative Preferred Stock may be presented  for
transfer  at the office of  BancBoston Trust Company of  NY, One Exchange Plaza,
3rd Floor, 55 Broadway, New York, New York 10006.

                                       10
<PAGE>
                        DESCRIPTION OF DEPOSITARY SHARES

    The description set forth below and in any Prospectus Supplement relating to
a series of New Preferred Stock  of certain provisions of the Deposit  Agreement
(as defined below) and of the Depositary Shares and Depositary Receipts does not
purport  to be  complete and  is subject  to, and  qualified in  its entirety by
reference to, the  form of  Deposit Agreement  and form  of Depositary  Receipts
relating  to each  series of the  New Preferred  Stock which are  filed with the
Commission as exhibits to the Registration Statement of which this Prospectus is
a part.

GENERAL

    The Company  may, at  its option,  elect to  offer fractional  interests  in
shares of the New Preferred Stock by means of the issuance of Depositary Shares.
The  shares of any series  of the New Preferred  Stock underlying the Depositary
Shares will  be  deposited under  a  separate Deposit  Agreement  (the  "Deposit
Agreement")  between the  Company and  a bank or  trust company  selected by the
Company (the "Depositary"). The  Prospectus Supplement relating  to a series  of
Depositary Shares will set forth the name and address of the Depositary. Subject
to  the terms of the Deposit Agreement, each owner of a Depositary Share will be
entitled proportionately to  all the  rights and preferences  of the  Cumulative
Preferred  Stock underlying  such Depositary Share  (including dividend, voting,
redemption, conversion and liquidation rights).

    The Depositary  Shares  will  be evidenced  by  Depositary  Receipts  issued
pursuant  to the Deposit Agreement, each  of which will represent the fractional
interest in a share of a particular series of the New Preferred Stock  described
in the Prospectus Supplement.

DIVIDENDS

    The   Depositary  will   distribute  all   cash  dividends   or  other  cash
distributions received  in respect  of the  New Preferred  Stock to  the  record
holders  of  Depositary  Receipts  relating  to  such  New  Preferred  Stock  in
proportion to the numbers of such Depositary Shares owned by such holders on the
relevant record date. The Depositary shall distribute only such amount, however,
as can be distributed without attributing  to any holder of Depositary Shares  a
fraction  of one cent, and any balance not  so distributed shall be added to and
treated as part of the next sum  received by the Depositary for distribution  to
holders of Depositary Shares.

REDEMPTION OF DEPOSITARY SHARES

    If  a series of the New Preferred  Stock underlying the Depositary Shares is
subject to redemption, the Depositary Shares will be redeemed from the  proceeds
received  by the Depositary resulting from the  redemption, in whole or in part,
of such series of the New Preferred Stock held by the Depositary. The redemption
price per  Depositary Share  will be  equal to  the applicable  fraction of  the
redemption  price  per share  payable with  respect  to such  series of  the New
Preferred Stock. If less than all the Depositary Shares are to be redeemed,  the
Depositary  Shares  to be  redeemed  will be  selected by  lot  by the  Board of
Directors.

VOTING

    Upon receipt of notice of any meeting at which the holders of the Cumulative
Preferred Stock are entitled to vote,  the Depositary will mail the  information
contained  in such  notice of  meeting to the  record holders  of the Depositary
Receipts evidencing  Depositary Shares  relating  to such  Cumulative  Preferred
Stock.  Each record holder of such Depositary Receipts on the record date (which
will be the same  date as the  record date for  the Cumulative Preferred  Stock)
will  be entitled to  instruct the Depositary  as to the  exercise of the voting
rights pertaining to the amount of Cumulative Preferred Stock represented by the
Depositary Shares evidenced  by such  Depositary Receipts.  The Depositary  will
endeavor,  insofar as  practicable, to vote  the amount  of Cumulative Preferred
Stock underlying such  Depositary Shares in  accordance with such  instructions,
and  the Company will agree to take all  action which may be deemed necessary by
the Depositary in order to enable the  Depositary to do so. The Depositary  will
abstain from

                                       11
<PAGE>
voting  the Cumulative Preferred  Stock to the  extent that it  does not receive
specific instructions from  the holders  of the  Depositary Receipts  evidencing
Depositary Shares representing such Cumulative Preferred Stock.

WITHDRAWAL OF CUMULATIVE PREFERRED STOCK

    Upon  surrender  of  Depositary  Receipts at  the  Corporate  Office  of the
Depositary and upon payment of the Depositary's customary charges therefor,  and
subject  to the  terms of  the Deposit  Agreement, the  owner of  the Depositary
Shares evidenced thereby is entitled to  delivery of the number of whole  shares
of  Cumulative Preferred Stock represented by  such Depositary Shares. Owners of
Depositary Shares will be  entitled to receive only  whole shares of  Cumulative
Preferred  Stock on the basis of one share of Cumulative Preferred Stock for the
number of Depositary Shares specified  in the Prospectus Supplement relating  to
such Depositary Shares. Partial shares of Cumulative Preferred Stock will not be
issued.  If the Depositary Receipts delivered by the holder evidence a number of
Depositary Shares in excess of the number of Depositary Shares representing  the
number  of  whole shares  of  Cumulative Preferred  Stock  to be  withdrawn, the
Depositary will deliver to such holder at the same time a new Depositary Receipt
evidencing such  excess  number  of  Depositary Shares.  Holders  of  shares  of
Cumulative  Preferred Stock  thus withdrawn will  not thereafter  be entitled to
deposit such  shares  under  the  Deposit Agreement  or  to  receive  Depositary
Receipts evidencing Depositary Shares therefor.

AMENDMENT OF FORM OF DEPOSITARY RECEIPTS AND OF DEPOSIT AGREEMENT

    The  form of  Depositary Receipt  evidencing the  Depositary Shares  and any
provision of  the Deposit  Agreement may  at any  time be  amended by  agreement
between  the Company and  the Depositary, provided,  however, that any amendment
which materially and  adversely alters  the rights  of the  existing holders  of
Depositary  Shares will not be effective unless such amendment has been approved
by holders of at least a majority of the Depositary Shares then outstanding.

CHARGES OF DEPOSITARY

    The Company will pay all transfer  and other taxes and governmental  charges
that arise solely from the existence of the depositary arrangements. The Company
will pay charges of the Depositary in connection with the initial deposit of the
Cumulative  Preferred Stock, the initial issuance of the Depositary Receipts and
any redemption of the Cumulative  Preferred Stock. Holders of Depositary  Shares
will  pay all other transfer  and other taxes and  governmental charges, and, in
addition, such other charges as are expressly provided in the Deposit  Agreement
to be for their accounts.

TAXATION

    Owners  of Depositary Shares will be treated for Federal income tax purposes
as if they  were owners of  the Cumulative Preferred  Stock represented by  such
Depositary  Shares and, accordingly,  will be entitled to  take into account for
Federal income  tax  purposes income  and  deductions  to which  they  would  be
entitled  if they were holders of  such Cumulative Preferred Stock. In addition,
(i) no gain or loss will be recognized for Federal income tax purposes upon  the
withdrawal  of Cumulative Preferred  Stock in exchange  for Depositary Shares as
provided in  the  Deposit  Agreement,  (ii)  the tax  basis  of  each  share  of
Cumulative  Preferred Stock  to an exchanging  owner of  Depositary Shares will,
upon such exchange, be  the same as  the aggregate tax  basis of the  Depositary
Shares  exchanged  therefor, and  (iii)  the holding  period  for shares  of the
Cumulative Preferred Stock  in the hands  of an exchanging  owner of  Depositary
Shares  who held such Depositary Shares at  the time of the exchange thereof for
Cumulative Preferred  Stock will  include the  period during  which such  person
owned such Depositary Shares.

MISCELLANEOUS

    The  Company, or at the option of  the Company, the Depositary, will forward
to the holders  of Depositary  Shares all  reports and  communications from  the
Company  which the  Company may  be required  to furnish  to the  holders of the
Cumulative Preferred Stock.

    Neither the Depositary nor the Company will be liable if it is prevented  or
delayed  by  law  or  any  circumstance beyond  its  control  in  performing its
obligations under the Deposit Agreement. The obligations of the Company and  the
Depositary  under  the  Deposit  Agreement will  be  limited  to  performance in

                                       12
<PAGE>
good faith  of  their  duties thereunder  and  they  will not  be  obligated  to
prosecute  or defend any legal proceeding in respect of any Depositary Shares or
Cumulative Preferred Stock unless satisfactory indemnity is furnished. They  may
rely  upon written advice of counsel  or accountants, or information provided by
persons presenting Cumulative Preferred Stock for deposit, holders of Depositary
Shares or other persons believed to be competent and on documents believed to be
genuine.

RESIGNATION AND REMOVAL OF DEPOSITARY; TERMINATION OF THE DEPOSIT AGREEMENT

    The Depositary may resign at any time by delivering to the Company notice of
its election to do so,  and the Company may at  any time remove the  Depositary,
any  such  resignation or  removal  to take  effect  upon the  appointment  of a
successor Depositary  and its  acceptance of  such appointment.  Such  successor
Depositary will be appointed by the Company within 60 days after delivery of the
notice of resignation or removal. The Deposit Agreement may be terminated at the
direction  of the Company  or by the  Depositary only after  (i) all outstanding
Depositary Shares have been redeemed or (ii) there shall have been made a  final
distribution  with  respect to  the Cumulative  Preferred Stock  underlying such
Depositary Shares in connection with any liquidation, dissolution or winding  up
of  the Company and such distribution shall  have been distributed to the record
holders of the Depositary Receipts, or otherwise provided for. Upon  termination
of  the  Deposit  Agreement, the  Depositary  will discontinue  the  transfer of
Depositary Receipts, will suspend the  distribution of dividends to the  holders
thereof,  and  will not  give any  further  notices (other  than notice  of such
termination) or  perform any  further  acts under  the Deposit  Agreement.  Upon
request  of  the  Company,  the Depositary  shall  deliver  all  books, records,
certificates evidencing  Cumulative  Preferred Stock,  Depositary  Receipts  and
other  documents respecting the  subject matter of the  Deposit Agreement to the
Company.

                          DESCRIPTION OF CAPITAL STOCK

    The description  set forth  below  of certain  provisions of  the  Company's
Restated  Articles of Organization, as amended,  the laws of The Commonwealth of
Massachusetts and  the regulations  of the  Massachusetts Department  of  Public
Utilities  does not purport to  be complete and is  subject to, and qualified in
its entirety by reference to,  the Company's Restated Articles of  Organization,
as amended, the laws of The Commonwealth of Massachusetts and the regulations of
the Massachusetts Department of Public Utilities.

    The  capital stock of the Company consists  of Common Stock, par value $1.00
per share,  of which  100,000,000  shares have  been authorized  and  44,763,055
shares  had been issued and were outstanding  as of December 31, 1992; 2,830,000
authorized shares of Cumulative Preferred Stock, par value $100 per share, which
may be issued in series and of  which 2,210,000 shares had been issued and  were
outstanding  as of  December 31, 1992  as described above  under "Description of
Cumulative Preferred  Stock  -- General",  and  8,000,000 authorized  shares  of
Preference Stock, par value $1 per share, which may be issued in series, none of
which  were  outstanding  as  of December  31,  1992.  Authorized  share amounts
indicated above are as of the date of this Prospectus.

    Subject to the preferential  rights of holders  of the Cumulative  Preferred
Stock  (see "Description  of Cumulative Preferred  Stock --  Dividends") and the
Cumulative Preference Stock to receive full cumulative dividends at the dividend
rate fixed for  each series and  designated in the  title thereof, dividends  on
Common Stock may be declared and paid as the Board of Directors may determine.

    Except  as  provided by  Massachusetts law  or in  the Restated  Articles of
Organization of  the  Company,  holders  of the  Common  Stock  shall  have  the
exclusive  right to vote for the election of Directors and for any other purpose
or on any other subject. The Restated Articles of Organization provide, however,
that whenever dividends on any shares of any series of the Cumulative  Preferred
Stock  shall  have accrued  and remain  unpaid in  an amount  equal to  six full
quarterly dividends thereon,  holders of  the Cumulative  Preferred Stock  shall
have  the exclusive right, voting separately as  a class, to elect a majority of
the Directors until  all dividends in  default thereon shall  have been paid  or
declared and set apart for payment, and the remaining Directors shall be elected
by  the holders  of the Common  Stock. See "Description  of Cumulative Preferred
Stock   --   Voting   Rights".   In   addition,   the   Restated   Articles   of

                                       13
<PAGE>
Organization  provide that  whenever dividends  on any  shares of  any series of
Cumulative Preference Stock have accrued and remain unpaid in an amount equal to
six full quarterly dividends thereon, holders of the Preference Stock, voting as
a class, have the right to elect two directors if the total number of  directors
constituting  the full Board  of Directors is  five or more,  or one director if
such total number is three  or four, until all  accrued and unpaid dividends  on
shares  of Cumulative Preference Stock  have been paid in  full or set apart for
payment. The Restated Articles of Organization further provide that stockholders
entitled to vote  at any meeting  shall have one  vote for each  share of  stock
owned by them.

    In the event of liquidation, dissolution or winding up of the affairs of the
Company  or distribution of its capital, holders of the six series of Cumulative
Preferred Stock  now outstanding  are entitled  to receive  $100 per  share,  if
involuntary,  or  the  applicable  redemption  price,  if  voluntary.  Upon  any
liquidation, dissolution or winding up of the Company, holders of any series  of
Preference  Stock hereafter issued are entitled to receive, subject to the prior
preferential rights  of  the Cumulative  Preferred  Stock (see  "Description  of
Cumulative  Preferred Stock -- Liquidation"), the amount fixed and determined by
the Board of Directors for such series. In any of such events, after payment  to
holders of the Cumulative Preferred Stock and the Cumulative Preference Stock of
the  foregoing  distributive  amounts, the  remaining  assets and  funds  of the
Company shall be distributed among the holders of Common Stock.

    The Company's Restated Articles of  Organization and Bylaws contain  certain
provisions  that  may be  viewed as  having  an anti-takeover  effect, including
provisions  establishing  a  classified  Board  of  Directors  and  requiring  a
supermajority vote of the disinterested stockholders to approve certain business
transactions with a stockholder owning more than 5% of the outstanding shares of
the  Company's Common Stock. The Company is  also subject to (i) Chapter 110D of
the Massachusetts General Laws, that,  in general, prevents anyone who  acquires
20%  or more of a company's shares from voting those shares unless disinterested
stockholders (excluding  the  bidder  and  the  company's  management)  vote  to
enfranchise the bidder, and (ii) Chapter 110F of the Massachusetts General Laws,
that,  in general, provides that for three years after an acquiror has purchased
5% or  more of  the  stock of  a  company, the  acquiror  may not  complete  the
acquisition  through merger, sell or pledge the assets of the company, or engage
in other self-dealing transactions.

    Holders of the Common Stock have no conversion or pre-emptive rights and are
not liable for further call or assessment.

    The Common Stock of the Company is listed on the New York Stock Exchange and
the Boston  Stock  Exchange.  Application  will be  made  for  listing  on  such
exchanges  of  additional  shares  of  Common  Stock  offered  in  a  Prospectus
Supplement relating to this Prospectus.

    The Transfer Agent and Registrar for the Company's capital stock,  including
the  Common Stock,  is The  First National Bank  of Boston,  100 Federal Street,
Boston, Massachusetts 02110. In New York City, the Common Stock may be presented
for transfer  at the  office of  BancBoston Trust  Company of  NY, One  Exchange
Plaza, 3rd Floor, 55 Broadway, New York, New York 10006.

DIVIDEND REINVESTMENT AND STOCK PURCHASE PLAN

    Under  the  Company's Dividend  Reinvestment  and Stock  Purchase  Plan (the
"DRP"), participants are able to reinvest  dividends paid by the Company in  the
purchase  of  additional shares  of  Common Stock  of  the Company  and  to make
optional cash payments (up to $5,000 per calendar quarter) to acquire additional
shares of Common Stock of the Company. Shares purchased under the DRP may either
be shares purchased in the open market or shares newly issued by the Company.

                                 LEGAL OPINIONS

    The validity of the Securities will be passed upon for the Company by  Ropes
& Gray, One International Place, Boston, Massachusetts, counsel for the Company.
Thomas  G. Dignan, Jr., a partner of Ropes & Gray, is a Director of the Company.
Certain legal matters will be passed upon for the underwriters and/or agents  by
Choate, Hall & Stewart, Exchange Place, 53 State Street, Boston, Massachusetts.

                                       14
<PAGE>
                                    EXPERTS

    The  consolidated balance sheets  as of December  31, 1992 and  1991 and the
consolidated statements of income, retained earnings, and cash flows for each of
the three years in the period ended December 31, 1992, incorporated by reference
in this Prospectus, have been incorporated  herein in reliance on the report  of
Coopers  & Lybrand, independent accountants, given on the authority of that firm
as experts in accounting and auditing.

    With respect to the unaudited interim consolidated financial information for
the periods ended September 30, 1992 and 1991, June 30, 1992 and 1991, and March
31, 1992  and 1991,  incorporated by  reference in  this Prospectus,  Coopers  &
Lybrand  have reported that  they have applied  limited procedures in accordance
with professional standards  for a  review of such  information. However,  their
separate  reports included in  the Company's Quarterly Reports  on Form 10-Q for
the quarters ended September  30, 1992, June  30, 1992 and  March 31, 1992,  and
incorporated  by reference herein, state that they did not audit and they do not
express  an  opinion  on   that  interim  consolidated  financial   information.
Accordingly,  the degree of reliance on their reports on such information should
be restricted in light of the  limited nature of the review procedures  applied.
Coopers  & Lybrand are not subject to  the liability provisions of Section 11 of
the Securities Act of  1933, as amended  (the "Act"), for  their reports on  the
unaudited  interim consolidated  financial information because  such reports are
not "reports" or a "part" of the registration statement prepared or certified by
Coopers & Lybrand within the meaning of Sections 7 and 11 of the Act.

    Ropes & Gray  has reviewed the  statements as  to matters of  law and  legal
conclusions  under "Description of Debt  Securities", "Description of Cumulative
Preferred Stock",  "Description  of  Depositary  Shares",  and  "Description  of
Capital Stock." Such statements are included on the authority of said firm.

                              PLAN OF DISTRIBUTION

    The Company may sell the Securities to or through underwriters, and also may
sell  the  Securities  directly  to  other  purchasers  or  through  agents. The
distribution of the Securities may be effected from time to time in one or  more
transactions  at a  fixed price or  prices, which  may be changed,  or at market
prices prevailing at  the time  of sale, at  prices related  to such  prevailing
market prices or at negotiated prices.

    In  connection with the  sale of the Securities,  underwriters or agents may
receive compensation from the Company or  from purchasers of the Securities  for
whom  they  may  act  as  agents  in  the  form  of  discounts,  concessions  or
commissions. Underwriters may  sell the  Securities to or  through dealers,  and
such  dealers may receive compensation in  the form of discounts, concessions or
commissions from the  underwriters and/or  commissions from  the purchasers  for
whom  they may act as agents.  Underwriters, dealers and agents that participate
in the distribution of the Securities may be deemed to be underwriters, and  any
discounts or commissions received by them from the Company and any profit on the
resale  of the Securities by them may be deemed to be underwriting discounts and
commissions under the Act. Any such underwriter or agent will be identified, and
any such  compensation  received  from  the Company  will  be  described,  in  a
Prospectus Supplement.

    Under  agreements which may be entered into by the Company, underwriters and
agents who participate in the distribution of the Securities may be entitled  to
indemnification   by   the  Company   against  certain   liabilities,  including
liabilities under the Act.

    If so  indicated in  a  Prospectus Supplement,  the Company  will  authorize
underwriters  or other persons acting as  the Company's agents to solicit offers
by certain institutions to purchase the Securities from the Company pursuant  to
contracts providing for payment and delivery on a future date. Institutions with
which such contracts may be made include commercial and savings banks, insurance
companies,  pension  funds,  investment  companies,  educational  and charitable
institutions and others, but in all cases such institutions must be approved  by
the  Company. The obligations of  any purchaser under any  such contract will be
subject to the condition that the  purchase of the offered Securities shall  not
at  the time  of delivery be  prohibited under  the laws of  the jurisdiction to
which such purchaser is subject. The underwriters and such other agents will not
have any  responsibility in  respect  of the  validity  or performance  of  such
contracts.

                                       15
<PAGE>
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    NO  PERSON  HAS BEEN  AUTHORIZED  TO GIVE  ANY  INFORMATION OR  TO  MAKE ANY
REPRESENTATIONS OTHER THAN THOSE CONTAINED IN THIS PROSPECTUS SUPPLEMENT OR  THE
PROSPECTUS,  AND, IF GIVEN OR MADE, SUCH INFORMATION OR REPRESENTATIONS MUST NOT
BE RELIED UPON AS HAVING BEEN AUTHORIZED. NEITHER THIS PROSPECTUS SUPPLEMENT NOR
THE PROSPECTUS CONSTITUTES AN OFFER TO SELL  OR THE SOLICITATION OF AN OFFER  TO
BUY  ANY  SECURITIES  OTHER THAN  THE  SECURITIES DESCRIBED  IN  THIS PROSPECTUS
SUPPLEMENT OR AN  OFFER TO  SELL OR  THE SOLICITATION OF  AN OFFER  TO BUY  SUCH
SECURITIES IN ANY CIRCUMSTANCES IN WHICH SUCH OFFER OR SOLICITATION IS UNLAWFUL.
NEITHER  THE DELIVERY  OF THIS PROSPECTUS  SUPPLEMENT OR THE  PROSPECTUS NOR ANY
SALE MADE HEREUNDER  OR THEREUNDER  SHALL, UNDER ANY  CIRCUMSTANCES, CREATE  ANY
IMPLICATION  THAT THERE HAS BEEN  NO CHANGE IN THE  AFFAIRS OF THE COMPANY SINCE
THE DATE HEREOF OR THEREOF OR  THAT THE INFORMATION CONTAINED HEREIN OR  THEREIN
IS CORRECT AS OF ANY TIME SUBSEQUENT TO THE DATE OF SUCH INFORMATION.

                           --------------------------

                               TABLE OF CONTENTS
                             PROSPECTUS SUPPLEMENT

<TABLE>
<CAPTION>
                                                       PAGE
                                                       -----
<S>                                                 <C>
Prospectus Summary................................         S-3
Recent Dividends and Stock Price Information......         S-5
Recent Developments...............................         S-5
Use of Proceeds...................................         S-6
Legal Opinions....................................         S-6
Experts...........................................         S-6
Underwriting......................................         S-7

                          PROSPECTUS
Available Information.............................           2
Incorporation of Certain Documents by Reference...           2
The Company.......................................           3
Use of Proceeds...................................           3
Plant Expenditures and Financing..................           4
Ratio of Earnings to Fixed Charges and Ratio of
  Earnings to Fixed Charges and Preferred
  Dividends.......................................           4
Dividends and Stock Price Information.............           5
Description of Debt Securities....................           5
Description of Cumulative Preferred Stock.........           8
Description of Depositary Shares..................          11
Description of Capital Stock......................          13
Legal Opinions....................................          14
Experts...........................................          15
Plan of Distribution..............................          15
</TABLE>

                                2,500,000 SHARES

                                 BOSTON EDISON
                                    COMPANY

                                  COMMON STOCK
                               ($1.00 PAR VALUE)

                                  -----------

                             PROSPECTUS SUPPLEMENT

                                  -----------

                              GOLDMAN, SACHS & CO.

                           A.G. EDWARDS & SONS, INC.

                             KIDDER, PEABODY & CO.
                                  INCORPORATED

                                LEHMAN BROTHERS

                              MERRILL LYNCH & CO.

                      REPRESENTATIVES OF THE UNDERWRITERS

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