ROCK OF AGES CORP
SC 13G/A, 1998-02-06
CUT STONE & STONE PRODUCTS
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                                                                                
                                                                                
                                                                                
                                                                                
                                                                                


                                  SCHEDULE 13G


                    Under the Securities Exchange Act of 1934
                               (Amendment No. 1)*


                               Rock of Ages Corp.
- --------------------------------------------------------------------------------
                                (Name of Issuer)
                                  Common Stock
- --------------------------------------------------------------------------------
                         (Title of Class of Securities)
                                    772632105
- --------------------------------------------------------------------------------
                                 (CUSIP Number)



Check here if a fee is being paid with this  statement:  (A fee is not  required
only if the  filing  person:  (1) has a  previous  statement  on file  reporting
beneficial  ownership  of more than  five  percent  of the  class of  securities
described in Item 1; and (2) has filed no amendment subsequent thereto reporting
beneficial ownership of five percent or less of such class.) (See Rule 13d-7).

*The  remainder of this cover page shall be filled out for a reporting  person's
initial filing on this form with respect to the subject class of securities, and
for any  subsequent  amendment  containing  information  which  would  alter the
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the  Securities  Exchange  Act of
1934 ("Act") or otherwise  subject to the liabilities of that section of the Act
but  shall be  subject  to all other  provisions  of the Act  (however,  see the
Notes).


                                PAGE 1 OF 9 PAGES


<PAGE>

<TABLE>
<CAPTION>


     <S>                                                                             <C>
- ---------------------------------------                                         --------------------------------------
CUSIP No.   772632105                                    13G                    Page  2  of  9  Pages
- ---------------------------------------                                         --------------------------------------

- --------- ---------------------------------------------------------------------------------------------------------------
   1      NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

          John Hancock Mutual Life Insurance Company
          I.R.S. No. 04-1414660

- --------- ---------------------------------------------------------------------------------------------------------------
   2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                      (a)  |_|
                                                                                 (b)  |_|
          N/A            

- --------- ---------------------------------------------------------------------------------------------------------------
   3      SEC USE ONLY


- --------- ---------------------------------------------------------------------------------------------------------------
   4      CITIZENSHIP OR PLACE OF ORGANIZATION

          Commonwealth of Massachusetts

- --------- ---------------------------------------------------------------------------------------------------------------
                   -------- ------------------------------------------------------------------------------------------
                      5     SOLE VOTING POWER
    Number of
     Shares                 -0-


                   -------- ------------------------------------------------------------------------------------------
  Beneficially        6     SHARED VOTING POWER
    Owned by
      Each                  -0-


                   -------- ------------------------------------------------------------------------------------------
    Reporting         7     SOLE DISPOSITIVE POWER
     Person
      With                  -0-

           
                   -------- ------------------------------------------------------------------------------------------
                      8     SHARED DISPOSITIVE POWER

                            -0-

                   -------- ------------------------------------------------------------------------------------------
- --------- ---------------------------------------------------------------------------------------------------------------
   9      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

          None,  except  through its  indirect,  wholly-owned  subsidiary,  John
          Hancock Advisers, Inc.


- --------- ---------------------------------------------------------------------------------------------------------------
   10     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

          N/A
- --------- ---------------------------------------------------------------------------------------------------------------

   11     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

          See line 9, above.


- --------- ---------------------------------------------------------------------------------------------------------------
   12     TYPE OF REPORTING PERSON*

          IC, IA, HC

- --------- ---------------------------------------------------------------------------------------------------------------
                                       *SEE INSTRUCTIONS BEFORE FILLING OUT!
                                                 PAGE 2 OF 9 PAGES


<PAGE>



     <S>                                                                                  <C>
- ---------------------------------------                                         --------------------------------------
CUSIP No.   772632105                                    13G                    Page  3  of  9  Pages
- ---------------------------------------                                         --------------------------------------

- --------- ---------------------------------------------------------------------------------------------------------------
   1      NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

          John Hancock Subsidiaries, Inc.
          I.R.S. No. 04-2687223
- --------- ---------------------------------------------------------------------------------------------------------------

   2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                      (a)  |_|
                                                                                 (b)  |_|
          N/A

- --------- ---------------------------------------------------------------------------------------------------------------
   3      SEC USE ONLY


- --------- ---------------------------------------------------------------------------------------------------------------
   4      CITIZENSHIP OR PLACE OF ORGANIZATION

          Delaware

- --------- ---------------------------------------------------------------------------------------------------------------
                   -------- ------------------------------------------------------------------------------------------
                      5     SOLE VOTING POWER
    Number of
     Shares                 -0-


                   -------- ------------------------------------------------------------------------------------------
  Beneficially        6     SHARED VOTING POWER
    Owned by
      Each                  -0-

        
                   -------- ------------------------------------------------------------------------------------------
    Reporting         7     SOLE DISPOSITIVE POWER
     Person
      With                  -0-

        
                   -------- ------------------------------------------------------------------------------------------
                      8     SHARED DISPOSITIVE POWER

                            -0-

                   -------- ------------------------------------------------------------------------------------------
- --------- ---------------------------------------------------------------------------------------------------------------
   9      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

          None,  except  through its  indirect,  wholly-owned  subsidiary,  John
          Hancock Advisers, Inc.
- --------- ---------------------------------------------------------------------------------------------------------------

   10     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

          N/A

- --------- ---------------------------------------------------------------------------------------------------------------
   11     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

          See line 9, above.


- --------- ---------------------------------------------------------------------------------------------------------------
   12     TYPE OF REPORTING PERSON*

          HC

- --------- ---------------------------------------------------------------------------------------------------------------
                                       *SEE INSTRUCTIONS BEFORE FILLING OUT!
                                                 PAGE 3 OF 9 PAGES


<PAGE>



     <S>                                                                             <C>
- ---------------------------------------                                         --------------------------------------
CUSIP No.   772632105                                    13G                    Page  4  of  9  Pages
- ---------------------------------------                                         --------------------------------------

- --------- ---------------------------------------------------------------------------------------------------------------
   1      NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

          The Berkeley Financial Group
          I.R.S. No. 04-3145626

- --------- ---------------------------------------------------------------------------------------------------------------
   2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                      (a)  |_|
                                                                                 (b)  |_|
          N/A

- --------- ---------------------------------------------------------------------------------------------------------------
   3      SEC USE ONLY

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

   4      CITIZENSHIP OR PLACE OF ORGANIZATION

          Commonwealth of Massachusetts

- --------- ---------------------------------------------------------------------------------------------------------------
                   -------- ------------------------------------------------------------------------------------------
                      5     SOLE VOTING POWER
    Number of
     Shares                 -0-

        
                   -------- ------------------------------------------------------------------------------------------
  Beneficially        6     SHARED VOTING POWER
    Owned by
      Each                  -0-

        
                   -------- ------------------------------------------------------------------------------------------
    Reporting         7     SOLE DISPOSITIVE POWER
     Person
      With                  -0-

        
                   -------- ------------------------------------------------------------------------------------------
                      8     SHARED DISPOSITIVE POWER

                            -0-

                   -------- ------------------------------------------------------------------------------------------
- --------- ---------------------------------------------------------------------------------------------------------------
   9      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

          None, except through its direct, wholly-owned subsidiary, John Hancock
          Advisers, Inc.

- --------- ---------------------------------------------------------------------------------------------------------------
   10     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

          N/A

- --------- ---------------------------------------------------------------------------------------------------------------
   11     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

          See line 9, above.


- --------- ---------------------------------------------------------------------------------------------------------------
   12     TYPE OF REPORTING PERSON*

          HC

- --------- ---------------------------------------------------------------------------------------------------------------
                                       *SEE INSTRUCTIONS BEFORE FILLING OUT!
                                                 PAGE 4 OF 9 PAGES


<PAGE>



     <S>                                                                             <C>
- ---------------------------------------                                         --------------------------------------
CUSIP No.   772632105                                    13G                    Page  5  of  9  Pages
- ---------------------------------------                                         --------------------------------------

- --------- ---------------------------------------------------------------------------------------------------------------
   1      NAME OF REPORTING PERSON
          S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

          John Hancock Advisers, Inc.
          I.R.S. No. 04-2441573


- --------- ---------------------------------------------------------------------------------------------------------------
   2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*                      (a)  |_|
                                                                                 (b)  |_|
          N/A

- --------- ---------------------------------------------------------------------------------------------------------------
   3      SEC USE ONLY

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

   4      CITIZENSHIP OR PLACE OF ORGANIZATION

          Delaware

- --------- ---------------------------------------------------------------------------------------------------------------
                   -------- ------------------------------------------------------------------------------------------
                      5     SOLE VOTING POWER
    Number of
     Shares                 220,800


                   -------- ------------------------------------------------------------------------------------------
  Beneficially        6     SHARED VOTING POWER
    Owned by
      Each
                            -0-

                   -------- ------------------------------------------------------------------------------------------
    Reporting         7     SOLE DISPOSITIVE POWER
     Person
      With                  220,800

   
                   -------- ------------------------------------------------------------------------------------------
                      8     SHARED DISPOSITIVE POWER

                            -0-

                   -------- ------------------------------------------------------------------------------------------
- --------- ---------------------------------------------------------------------------------------------------------------
   9      AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

          220,800

- --------- ---------------------------------------------------------------------------------------------------------------
   10     CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

          N/A

- --------- ---------------------------------------------------------------------------------------------------------------
   11     PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

          5.8%

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

   12     TYPE OF REPORTING PERSON*

          IA

- --------- ---------------------------------------------------------------------------------------------------------------
                                       *SEE INSTRUCTIONS BEFORE FILLING OUT!
                                                 PAGE 5 OF 9 PAGES
</TABLE>


<PAGE>



         The original  statement  shall be signed by each person on whose behalf
the  statement is filed or his  authorized  representative.  If the statement is
signed  on behalf of a person by his  authorized  representative  other  than an
executive  officer or general  partner of the  filing  person,  evidence  of the
representative's  authority to sign on behalf of such person shall be filed with
the  statement,  provided,  however,  that a power of attorney  for this purpose
which is already on file with the Commission may be  incorporated  by reference.
The name and any title of each person who signs the statement  shall be typed or
printed beneath his signature.

Note: Six copies of this statement, including all exhibits, should be filed with
the Commission.

     Attention:  Intentional  misstatements  or  omissions  of  fact  constitute
Federal criminal violations (See 18 U.S.C. 1001)

         Item 1(a)    Name of Issuer:
                      Rock of Ages Corp.

         Item 1(b)    Address of Issuer's Principal Executive Offices:
                      369 North State Street
                      Concord, NH   03301

         Item 2(a)    Name of Person Filing:
                      This filing is made on behalf of John Hancock  Mutual Life
                      Insurance   Company    ("JHMLICO"),    JHMLICO's   direct,
                      wholly-owned subsidiary,  John Hancock Subsidiaries,  Inc.
                      ("JHSI"),  JHSI's  direct,  wholly-owned  subsidiary,  The
                      Berkeley Financial Group ("TBFG") and TBFG's  wholly-owned
                      subsidiary, John Hancock Advisers, Inc. ("JHA").

         Item 2(b)    Address of the Principal Offices:
                      The  principal  business  offices of JHMLICO  and JHSI are
                      located at John Hancock Place,  P.O. Box 111,  Boston,  MA
                      02117. The principal  business offices of TBFG and JHA are
                      located at 101 Huntington  Avenue,  Boston,  Massachusetts
                      02199.

         Item 2(c)    Citizenship:
                      JHMLICO and TBFG were  organized  and exist under the laws
                      of the  Commonwealth of  Massachusetts.  JHSI and JHA were
                      organized  and  exist  under  the  laws  of the  State  of
                      Delaware.

         Item 2(d)    Title of Class of Securities:
                      Common Stock

         Item 2(e)    CUSIP Number:
                      772632105

         Item 3       If the Statement is being filed pursuant to Rule 13d-1(b),
                      or 13d-2(b),  check whether the person filing is a:
                      

                      JHMLICO: (c) (X) Insurance Company as defined in ss.3(a)
                                       (19) of the Act.

                               (e) (X)  Investment  Adviser  registered
                                        under   ss.203  of  the   Investment
                                        Advisers Act of 1940.

                               (g) (X)   Parent   Holding   Company,   in
                                         accordance with ss.240.13d-1(b)(ii)(G).

                      JHSI:    (g) (X) Parent Holding Company, in accordance 
                                       with ss.240.13d-1(b)(ii)(G).

                      TBFG:    (g) (X) Parent Holding Company, in accordance 
                                       with ss.240.13d-1(b)(ii)(G).

                      JHA:     (e) (X) Investment Adviser registered under
                                       ss.203 of the Investment Advisers Act of 
                                       1940.


                                PAGE 6 OF 9 PAGES

<PAGE>

         Item 4       Ownership:

                      (a)    Amount   Beneficially   Owned:   JHA   has   direct
                             beneficial  ownership  of 220,800  shares of Common
                             Stock. Through their parent-subsidiary relationship
                             to JHA,  JHMLICO,  JHSI  and  TBFG  have  indirect,
                             beneficial ownership of these same shares.

                      (b)    Percent of Class:  5.8%

                      (c) (i) sole power to vote or to direct the vote:  JHA has
                              sole power to vote or direct the vote of the 
                              220,800 shares of Common Stock under the Advisory
                              Agreements as follows:

                                                                   Date of
                                                   Number          Advisory
       Fund Name                                   of Shares       Agreement
       ---------                                   --------        ---------
                                                    
John Hancock Maritime Life 
Discovery Fund                                     5,800            May 11, 1994
John Hancock Global Fund                          32,900        December 5, 1997
Group Indosuez Funds, North American               
Smaller Companies Portfolio                       10,400            May 20, 1997
John Hancock Variable Series Trust 1 -        
Small Cap Growth Portfolio                        15,700          March 29, 1996
John Hancock Emerging Growth Fund                153,300        December 2, 1996
John Hancock Small Capitalization Growth Fund      1,300       December 11, 1995
V.A. Emerging Growth Fund                          1,400         August 29, 1996
                                                                                
                         (ii)  shared power to vote or to direct the vote:  -0-

                         (iii) sole  power  to  dispose  or to  direct  the
                               disposition   of:  JHA  has  sole  power  to
                               dispose or to direct the  disposition of the
                               220,800  shares  of Common  Stock  under the
                               Advisory  Agreements  noted in Item  4(c)(i)
                               above.

                         (iv)  shared power to dispose or to direct the 
                               disposition of:     -0-


         Item 5       Ownership of Five Percent or Less of a Class:
                      Not applicable.

         Item 6       Ownership of More than Five Percent on Behalf of Another 
                      Person:  See Item 4.

         Item 7       Identification  and  Classification  of the  Subsidiary
                      which  Acquired  the  Security  Being  Reported  on by the
                      Parent Holding Company:
                      See Items 3 and 4 above.

         Item 8       Identification and Classification of Members of the Group:
                      Not applicable.

         Item 9       Notice of Dissolution of a Group:
                      Not applicable.



                                PAGE 7 OF 9 PAGES


<PAGE>

         Item 10      Certification:
                      By signing below the  undersigned  certifies  that, to the
                      best of its knowledge and belief, the securities  referred
                      to above were acquired in the ordinary  course of business
                      and were not  acquired  for the purpose of and do not have
                      the effect of changing or  influencing  the control of the
                      issuer  of  such  securities  and  were  not  acquired  in
                      connection  with or as a  participant  in any  transaction
                      having such purpose or effect.


                                    SIGNATURE

         After  reasonable  inquiry and to the best of its knowledge and belief,
each of the  undersigned  certifies  that  the  information  set  forth  in this
statement is true, complete and correct.


                                   John Hancock Mutual Life Insurance Company
                                   By:      /s/John T. Farady
                                            ------------------------------------
                                   Name:    John T. Farady
Dated: February 4, 1998            Title:   Senior Vice President & Treasurer


                                   John Hancock Subsidiaries, Inc.
                                   By:      /s/John T. Farady
                                            ------------------------------------
                                   Name:    John T. Farady
Dated: February 4, 1998            Title:   Treasurer


                                   The Berkeley Financial Group
                                   By:      /s/Susan S. Newton
                                            ------------------------------------
                                   Name:    Susan S. Newton
Dated: February 4, 1998            Title:   Vice President


                                   John Hancock Advisers, Inc.
                                   By:      /s/Susan S. Newton
                                            ------------------------------------
                                   Name:    Susan S. Newton
Dated: February 4, 1998            Title:   Vice President



                                PAGE 8 OF 9 PAGES


<PAGE>

EXHIBIT A

                             JOINT FILING AGREEMENT

     John Hancock  Mutual Life  Insurance  Company,  John Hancock  Subsidiaries,
Inc., The Berkeley  Financial Group and John Hancock  Advisers,  Inc. agree that
the  Schedule  13G  (Amendment  No. 1), to which  this  Agreement  is  attached,
relating to the Common Stock of Rock of Ages Corp. is filed on behalf of each of
them.



                                  John Hancock Mutual Life Insurance Company
                                   By:      /s/John T. Farady
                                            ------------------------------------
                                   Name:    John T. Farady
Dated: February 4, 1998            Title:   Senior Vice President & Treasurer


                                   John Hancock Subsidiaries, Inc.
                                   By:      /s/John T. Farady
                                            ------------------------------------
                                   Name:    John T. Farady
Dated: February 4, 1998            Title:   Treasurer


                                   The Berkeley Financial Group
                                   By:      /s/Susan S. Newton
                                            ------------------------------------
                                   Name:    Susan S. Newton
Dated: February 4, 1998            Title:   Vice President


                                   John Hancock Advisers, Inc.
                                   By:      /s/Susan S. Newton
                                            ------------------------------------
                                   Name:    Susan S. Newton
Dated: February 4, 1998            Title:   Vice President




                                PAGE 9 OF 9 PAGES





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