<ARTICLE>                5
       
                      
<PERIOD-TYPE>            12-MOS
<FISCAL-YEAR-END>                       JUL-31-1996
<PERIOD-START>                          AUG-01-1995
<PERIOD-END>                            JUL-31-1996
<CASH>                                    7,688,507
<SECURITIES>                             15,838,543
<RECEIVABLES>                               389,983
<ALLOWANCES>                                 60,000
<INVENTORY>                               2,120,787
<CURRENT-ASSETS>                         26,463,130
<PP&E>                                    3,965,965
<DEPRECIATION>                            1,482,233
<TOTAL-ASSETS>                           29,360,784
<CURRENT-LIABILITIES>                     1,683,592
<BONDS>                                           0
<PREFERRED-MANDATORY>                             0
<PREFERRED>                                       0
<COMMON>                                  4,821,058
<OTHER-SE>                               22,775,797
<TOTAL-LIABILITY-AND-EQUITY>             29,360,784
<SALES>                                   1,156,170
<TOTAL-REVENUES>                          1,606,170
<CGS>                                     5,256,179
<TOTAL-COSTS>                             5,256,179
<OTHER-EXPENSES>                          6,219,435
<LOSS-PROVISION>                                  0
<INTEREST-EXPENSE>                           14,296
<INCOME-PRETAX>                          (8,578,294)
<INCOME-TAX>                                      0
<INCOME-CONTINUING>                      (8,578,294)
<DISCONTINUED>                              405,416
<EXTRAORDINARY>                                   0
<CHANGES>                                         0
<NET-INCOME>                             (8,172,878)
<EPS-PRIMARY>                                  (.70)
<EPS-DILUTED>                                  (.70)