<ARTICLE> 5 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1998 <PERIOD-START> JAN-01-1998 <PERIOD-END> JUN-30-1998 <CASH> 1,837,457 <SECURITIES> 0 <RECEIVABLES> 83,794 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 1,921,251 <PP&E> 3,948,119 <DEPRECIATION> 3,777,162 <TOTAL-ASSETS> 2,092,208 <CURRENT-LIABILITIES> 329,943 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 1,762,265 <TOTAL-LIABILITY-AND-EQUITY> 2,092,208 <SALES> 0 <TOTAL-REVENUES> 271,234 <CGS> 0 <TOTAL-COSTS> 0 <OTHER-EXPENSES> 455,950 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> (184,716) <INCOME-TAX> 0 <INCOME-CONTINUING> (184,716) <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (184,716) <EPS-PRIMARY> 0 <EPS-DILUTED> 0