<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> 6-MOS <FISCAL-YEAR-END> DEC-31-1996 <PERIOD-END> JUN-30-1996 <CASH> 21,698 <SECURITIES> 0 <RECEIVABLES> 125,414 <ALLOWANCES> (3,181) <INVENTORY> 73,194 <CURRENT-ASSETS> 237,838 <PP&E> 489,252 <DEPRECIATION> (246,231) <TOTAL-ASSETS> 566,608 <CURRENT-LIABILITIES> 115,235 <BONDS> 83,623 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 179 <OTHER-SE> 320,807 <TOTAL-LIABILITY-AND-EQUITY> 566,608 <SALES> 304,001 <TOTAL-REVENUES> 304,001 <CGS> 196,573 <TOTAL-COSTS> 271,490 <OTHER-EXPENSES> 74,917 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> (3,435) <INCOME-PRETAX> 31,170 <INCOME-TAX> 11,670 <INCOME-CONTINUING> 19,500 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 19,500 <EPS-PRIMARY> 1.09 <EPS-DILUTED> 1.09