<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEET AND THE CONSOLIDATED STATEMENT OF INCOME
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-END>                               MAR-31-1996
<CASH>                                          17,409
<SECURITIES>                                         0
<RECEIVABLES>                                  124,160
<ALLOWANCES>                                   (3,104)
<INVENTORY>                                     74,431
<CURRENT-ASSETS>                               232,102
<PP&E>                                         481,862
<DEPRECIATION>                               (238,780)
<TOTAL-ASSETS>                                 563,650
<CURRENT-LIABILITIES>                          120,847
<BONDS>                                         80,878
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           179
<OTHER-SE>                                     317,380
<TOTAL-LIABILITY-AND-EQUITY>                   563,650
<SALES>                                        152,954
<TOTAL-REVENUES>                               152,954
<CGS>                                           98,714
<TOTAL-COSTS>                                  135,215 
<OTHER-EXPENSES>                                36,501
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                             (1,774)
<INCOME-PRETAX>                                 17,159
<INCOME-TAX>                                     6,486
<INCOME-CONTINUING>                             10,673
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    10,673
<EPS-PRIMARY>                                      .60
<EPS-DILUTED>                                      .60