Filed Pursuant
                                                                to Rule 424(c)
                                                            File No. 333-18671


           THIS PROSPECTUS SUPPLEMENT FURTHER SUPPLEMENTS A PROSPECTUS
        FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON DECEMBER 24,
              1996 AND A SUPPLEMENT THERETO DATED JANUARY 13, 1997.



                              PROSPECTUS SUPPLEMENT

Tony L. Spriggs, the "Selling  Shareholder" named in this prospectus has pledged
the Common Stock offered herein to Smith Barney Inc. ("Smith  Barney")  pursuant
to a full recourse  loan. In the event of a loan default,  Smith Barney may from
time to time sell all,  or a part of,  the  Common  Stock in a manner or manners
described in the "Plan of Distribution" section of the Prospectus.



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