<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE FORM S-4
REGISTRATION STATEMENT AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS AND RELATED FOONOTES INCLUDED THEREIN.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               DEC-31-1997
<CASH>                                          11,562
<SECURITIES>                                     3,841
<RECEIVABLES>                                        0
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                                15,711
<PP&E>                                          10,326
<DEPRECIATION>                                   9,592
<TOTAL-ASSETS>                                  16,445
<CURRENT-LIABILITIES>                            1,062
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                            37
<OTHER-SE>                                      15,346
<TOTAL-LIABILITY-AND-EQUITY>                    16,445
<SALES>                                          3,451
<TOTAL-REVENUES>                                 3,451
<CGS>                                                0
<TOTAL-COSTS>                                        0
<OTHER-EXPENSES>                                11,168
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                (6,778)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                            (6,778)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (6,778)
<EPS-PRIMARY>                                   (0.37)
<EPS-DILUTED>                                   (0.37)