<ARTICLE>                     5
<LEGEND>
     Information taken from June 30, 1998 Form 10-Q.
</LEGEND>
<MULTIPLIER>                                   1,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                              DEC-31-1998
<PERIOD-START>                                 APR-01-1998
<PERIOD-END>                                   JUN-30-1998
<CASH>                                               3,874
<SECURITIES>                                        47,852
<RECEIVABLES>                                            0
<ALLOWANCES>                                             0
<INVENTORY>                                              0
<CURRENT-ASSETS>                                    52,940
<PP&E>                                              23,874
<DEPRECIATION>                                     (12,120)
<TOTAL-ASSETS>                                      68,035
<CURRENT-LIABILITIES>                                3,185
<BONDS>                                              2,200
<PREFERRED-MANDATORY>                                    0
<PREFERRED>                                            400
<COMMON>                                                24
<OTHER-SE>                                          59,495
<TOTAL-LIABILITY-AND-EQUITY>                        68,035
<SALES>                                                  0
<TOTAL-REVENUES>                                       765
<CGS>                                                    0
<TOTAL-COSTS>                                        6,221
<OTHER-EXPENSES>                                      (778)
<LOSS-PROVISION>                                         0
<INTEREST-EXPENSE>                                     110
<INCOME-PRETAX>                                     (4,788)
<INCOME-TAX>                                             0
<INCOME-CONTINUING>                                 (4,788)
<DISCONTINUED>                                           0
<EXTRAORDINARY>                                          0
<CHANGES>                                                0
<NET-INCOME>                                        (4,788)
<EPS-PRIMARY>                                        (0.24)
<EPS-DILUTED>                                        (0.24)