<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
UNAUDITED CONSOLIDATED CONDENSED STATEMENT OF EARNINGS AND THE UNAUDITED
CONSOLIDATED CONDENSED BALANCE SHEETS OF THE REGISTRANT FOR THE SIX MONTHS ENDED
JUNE 30, 1996 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL
STATEMENTS.  AMOUNTS ARE IN THOUSANDS OF DOLLARS EXCEPT PER SHARE DATA.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1996
<PERIOD-END>                               JUN-30-1996
<CASH>                                          29,479
<SECURITIES>                                    15,305
<RECEIVABLES>                                  201,532
<ALLOWANCES>                                    12,045
<INVENTORY>                                     57,464
<CURRENT-ASSETS>                               339,374
<PP&E>                                         390,254
<DEPRECIATION>                                 246,225
<TOTAL-ASSETS>                                 568,349
<CURRENT-LIABILITIES>                          126,474
<BONDS>                                          9,286
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        23,714
<OTHER-SE>                                       3,642
<TOTAL-LIABILITY-AND-EQUITY>                   568,349
<SALES>                                        359,178
<TOTAL-REVENUES>                               365,939
<CGS>                                          215,480
<TOTAL-COSTS>                                  215,480
<OTHER-EXPENSES>                                91,671
<LOSS-PROVISION>                                   912
<INTEREST-EXPENSE>                                 604
<INCOME-PRETAX>                                 58,184
<INCOME-TAX>                                    22,224
<INCOME-CONTINUING>                                  0
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    35,960
<EPS-PRIMARY>                                     1.48
<EPS-DILUTED>                                     1.48