SUPPLEMENT TO THE PROSPECTUSES AND STATEMENTS OF
                           ADDITIONAL INFORMATION OF



                                                               
         KEYSTONE AMERICA FUND FOR TOTAL RETURN                  KEYSTONE AMERICA STRATEGIC INCOME FUND
       KEYSTONE AMERICA GLOBAL OPPORTUNITIES FUND                KEYSTONE AMERICA TAX FREE INCOME FUND
                    KEYSTONE AMERICA                                KEYSTONE AMERICA WORLD BOND FUND
          HARTWELL EMERGING GROWTH FUND, INC.                        KEYSTONE FUND OF THE AMERICAS
      KEYSTONE AMERICA HARTWELL GROWTH FUND, INC.                 KEYSTONE STRATEGIC DEVELOPMENT FUND
           KEYSTONE AMERICA OMEGA FUND, INC.                                (THE "FUND(S)")


     The  prospectus  and  statement of additional  information  of each Fund is
hereby supplemented as follows:

     Effective  April 10,  1995,  purchases  of the Fund's Class A shares in the
amount  of $1  million  or more  and/or  purchases  of Class A shares  made by a
corporate  qualified  retirement plan or a non-qualified  deferred  compensation
plan having 100 eligible  employees or more (a "Qualifying Plan") will be at net
asset value ("NAV") without the imposition of a front-end sales charge.

     Starting  April 10, 1995, for purchases of the Fund's Class A shares in the
amount of $1 million  or more,  Keystone  Distributors,  Inc.  will pay  broker/
dealers or others concessions in accordance with the following schedule:

CONCESSIONS TO DEALERS
AS A PERCENTAGE OF
PUBLIC OFFERING PRICE                              AMOUNT OF PURCHASE
1.00% of the investment amount ...............     $1,000,000 - $2,999,999 plus
0.50% of the investment amount ...............     $3,000,000 - $4,999,999 plus
0.25% of amounts equal to or over ............     $5,000,000

     Effective  April 10,  1995,  purchases  of the Fund's Class A shares in the
amount of $1 million or more or purchases made by a Qualifying Plan as described
above on which no sales charge has been paid by the investor  will be subject to
a contingent  deferred sales charge ("CDSC") of 1.00% upon redemption during the
24 month period commencing on the date the shares were originally purchased.

     Moreover,   CDSC  will  now  be  waived  under  the   following  additional
circumstances:

     For the  Fund's  Class A, B, and C shares,  no CDSC will be  imposed on any
redemption consisting of (1) loan proceeds to a retirement plan participant; (2)
financial  hardship  withdrawals made by a retirement plan  participant;  or (3)
returns of excess  contributions or excess deferral amounts made to a retirement
plan participant.

     With respect to Class A shares  purchased  by a  Qualifying  Plan at NAV or
Class C shares  purchased by a Qualifying  Plan,  no CDSC will be imposed on any
redemptions  made  specifically  by an individual  participant in the Qualifying
Plan.  This waiver is not  available in the event a  Qualifying  Plan as a whole
redeems substantially all of its assets.

April 10, 1995

                                                                      AMER4-SK