<ARTICLE> 5
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-END>                               JUN-30-1998
<CASH>                                         866,612
<SECURITIES>                                 2,571,996
<RECEIVABLES>                                   21,942
<ALLOWANCES>                                         0
<INVENTORY>                                    191,224
<CURRENT-ASSETS>                             3,720,902
<PP&E>                                       1,045,649
<DEPRECIATION>                                (528,211)
<TOTAL-ASSETS>                               4,435,126
<CURRENT-LIABILITIES>                          170,867
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        43,161
<OTHER-SE>                                   4,221,098
<TOTAL-LIABILITY-AND-EQUITY>                 4,435,126
<SALES>                                         37,440
<TOTAL-REVENUES>                                37,440
<CGS>                                            7,488
<TOTAL-COSTS>                                    7,488
<OTHER-EXPENSES>                               625,991
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                             (1,191,943)
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                         (1,191,943)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                (1,191,943)
<EPS-PRIMARY>                                      .15
<EPS-DILUTED>                                      .15