<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-START> JAN-01-1999 <PERIOD-END> MAR-31-1999 <CASH> 30,040 <SECURITIES> 0 <RECEIVABLES> 181,447 <ALLOWANCES> (5,686) <INVENTORY> 108,133 <CURRENT-ASSETS> 345,926 <PP&E> 678,076 <DEPRECIATION> (333,680) <TOTAL-ASSETS> 835,736 <CURRENT-LIABILITIES> 285,594 <BONDS> 95,722 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 363 <OTHER-SE> 404,960 <TOTAL-LIABILITY-AND-EQUITY> 835,736 <SALES> 198,227 <TOTAL-REVENUES> 198,227 <CGS> 124,085 <TOTAL-COSTS> 173,991 <OTHER-EXPENSES> 49,906 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> (2,620) <INCOME-PRETAX> 22,123 <INCOME-TAX> 7,854 <INCOME-CONTINUING> 14,269 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 14,269 <EPS-PRIMARY> 0.39<F1> <EPS-DILUTED> 0.39 <FN> <F1>In August 1998, the Company effected a two-for-one stock split. Prior Financial Data Schedules have not been restated for this stock split. </FN>