<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM CONDENSED
CONSOLIDATED BALANCE SHEET AT JUNE 30, 1999 AND CONDENSED CONSOLIDATED
STATEMENTS OF INCOME FOR THE THREE MONTHS AND SIX MONTHS ENDED JUNE 30, 1999.
</LEGEND>
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               JUN-30-1999
<CASH>                                          21,796
<SECURITIES>                                    40,670
<RECEIVABLES>                                  301,723
<ALLOWANCES>                                         0
<INVENTORY>                                    127,635
<CURRENT-ASSETS>                               564,767
<PP&E>                                         285,219
<DEPRECIATION>                                 142,193
<TOTAL-ASSETS>                               1,080,006
<CURRENT-LIABILITIES>                          269,910
<BONDS>                                         20,800
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        86,999
<OTHER-SE>                                     652,136
<TOTAL-LIABILITY-AND-EQUITY>                 1,080,006
<SALES>                                        345,624
<TOTAL-REVENUES>                               580,479
<CGS>                                          202,052
<TOTAL-COSTS>                                  368,385
<OTHER-EXPENSES>                               123,404
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                 95,567
<INCOME-TAX>                                    34,882
<INCOME-CONTINUING>                             60,685
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    60,685
<EPS-BASIC>                                       0.88
<EPS-DILUTED>                                     0.88