<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from balance
sheet at June 30, 1997 and the statement of operations for the three months and
six months ended June 30, 1997 and is qualified in its entirety by reference to
such financial statements.
</LEGEND>
       
<S>                             <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997             DEC-31-1997
<PERIOD-START>                             APR-01-1997             JAN-01-1997
<PERIOD-END>                               JUN-30-1997             JUN-30-1997
<CASH>                                       4,101,488               4,101,488
<SECURITIES>                                         0                       0
<RECEIVABLES>                                   92,188                  92,188
<ALLOWANCES>                                         0                       0
<INVENTORY>                                          0                       0
<CURRENT-ASSETS>                             4,348,641               4,348,641
<PP&E>                                       5,755,123               5,755,123
<DEPRECIATION>                               4,409,006               4,409,006
<TOTAL-ASSETS>                               6,496,179               6,496,179
<CURRENT-LIABILITIES>                        1,979,847               1,979,847
<BONDS>                                              0                       0
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                       196,937                 196,937
<OTHER-SE>                                   3,939,491               3,939,491
<TOTAL-LIABILITY-AND-EQUITY>                 6,496,179               6,496,179
<SALES>                                              0                       0
<TOTAL-REVENUES>                               162,826                 427,044
<CGS>                                                0                       0
<TOTAL-COSTS>                                2,739,659               5,330,989
<OTHER-EXPENSES>                                     0                       0
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                               8,876                  27,601
<INCOME-PRETAX>                            (2,576,833)             (4,903,945)
<INCOME-TAX>                                         0                       0
<INCOME-CONTINUING>                        (2,576,833)             (4,903,945)
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                               (2,576,833)             (4,903,945)
<EPS-PRIMARY>                                   (0.19)                  (0.36)
<EPS-DILUTED>                                   (0.19)                  (0.36)
        

</TABLE>