RATIO OF EARNINGS TO FIXED CHARGES                                                                                  EXHIBIT 12.2

( in thousands )                                                       Three months ended                 Six months ended          
                                                                            June 30,                            June 30,     
                                                                     1996             1995              1996             1995
                                                                                                                               
                                                                                                         
EARNINGS AS DEFINED:                                                                                                           
Earnings from operations before income taxes after                                                                             
     eliminating undistributed earnings of 20%- to                                                                             
     50%-owned affiliates                                        $   52,673       $   49,851        $   89,042       $   92,485
Fixed charges excluding capitalized interest and                                                                               
     preferred stock dividends of majority-owned                                                                               
     subsidiary companies                                             3,095            3,733             5,325            8,026
                                                                                                                               
Earnings as defined                                              $   55,768       $   53,584        $   94,367       $  100,511
                                                                                                                               
FIXED CHARGES AS DEFINED:                                                                                                      
Interest expense, including amortization of                                                                                    
     debt issue costs                                            $    2,224       $    2,829        $    3,637       $    6,182
Interest capitalized                                                    226               54               409               87
Portion of rental expense representative                                                                                       
     of the interest factor                                             871              904             1,688            1,844
Preferred stock dividends of majority-owned                                                                                    
     subsidiary companies                                                20               20                40               40
                                                                                                                               
Fixed charges as defined                                         $    3,341       $    3,807        $    5,774       $    8,153
                                                                                                                               
RATIO OF EARNINGS TO FIXED CHARGES                                    16.69            14.08             16.34            12.33