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                                                                      Exhibit 12


               COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
                      (DOLLARS IN MILLIONS, EXCEPT RATIOS)



                                                                        YEARS ENDED DECEMBER 31
                                                     -----------------------------------------------------------
                                                       2002          2001          2000         1999      1998
                                                     -------       -------       -------      -------    -------
                                                                                          
EARNINGS:
     Net earnings                                    $ 366.7       $ 273.6       $ 285.4      $ 318.5    $ 243.0
     Provision for income taxes                        128.9          44.2         111.0        140.4      122.4
     Amortization of capitalized interest                0.5           0.6           0.5          0.3        0.2
     Fixed charges excluding interest capitalized       22.5          26.3          24.2         21.3       19.3
                                                     -------       -------       -------      -------    -------
         Total                                       $ 518.6       $ 344.7       $ 421.1       $480.5    $ 384.9
                                                     =======       =======       =======      =======    =======

FIXED CHARGES:
     Interest expense (gross of interest income)     $  12.6       $  16.5       $  15.0      $  13.0    $  12.6
     Amortization of deferred financing expense          0.7           0.3           0.3          0.3        0.5
     Interest capitalized                                0.6           0.3           0.8          1.0        0.6
     Interest component of rental expense                9.2           9.5           8.9          8.0        6.2
                                                     -------      --------       -------      -------    -------
         Total                                       $  23.1       $  26.6       $  25.0      $  22.3    $  19.9
                                                     =======       =======       =======      =======    =======

RATIO OF EARNINGS TO FIXED CHARGES                      22.5(a)       13.0(b)       16.8(c)      21.5       19.3
                                                     =======       =======       =======      =======    =======



(a)  Excluding a ($5.9) million (($4.4 million, net of tax)) reversal of
     restructuring charges in 2002, the company's ratio of earnings to fixed
     charges would have been 22.2 times.

(b)  Excluding a $87.7 million ($64.5 million, net of tax) restructuring and
     related inventory charge in 2001, the company's ratio of earnings to fixed
     charges would have been 16.2 times.

(c)  Excluding a $41.3 million ($29.7 million, net of tax) restructuring charge
     in 2000, the company's ratio of earnings to fixed charges would have been
     18.5 times.

In the computation of the company's ratio of earnings to fixed charges, earnings
consist of earnings before income taxes, plus fixed charges, less capitalized
interest, plus amortization of capitalized interest. Fixed charges consist of
interest expense excluding the benefit of capitalized interest and including a
reasonable approximation of the interest component included in rental expense.