<ARTICLE> 5
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          NOV-30-1997
<PERIOD-END>                               AUG-31-1997
<CASH>                                          467629
<SECURITIES>                                       966
<RECEIVABLES>                                     9286
<ALLOWANCES>                                    (2000)
<INVENTORY>                                      50857
<CURRENT-ASSETS>                                553133 
<PP&E>                                          956226
<DEPRECIATION>                                (794523)
<TOTAL-ASSETS>                                 1333104
<CURRENT-LIABILITIES>                           135849
<BONDS>                                              0
<COMMON>                                         48931
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<OTHER-SE>                                     1148324
<TOTAL-LIABILITY-AND-EQUITY>                   1333104
<SALES>                                        1063775 
<TOTAL-REVENUES>                               1147596 
<CGS>                                           523272
<TOTAL-COSTS>                                  1061396 
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                  86200
<INCOME-TAX>                                     12545 
<INCOME-CONTINUING>                              73655
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     73655
<EPS-PRIMARY>                                      .27
<EPS-DILUTED>                                      .27