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Exhibit 12     Statement of Computation of Ratio of Earnings to Fixed Charges

             
                         Three
                         Months
                         Ended
                        March 31,  ------------ Year Ended December 31,---------
                          1994      1993      1992      1991      1990      1989
                                                          
Computation of Earnings

Pretax income from 
continuing operations     $53.8    $279.8    $254.7    $208.8    $178.7    $148.4

Adjustments to earnings:

  Plus: Distributed 
  income of less than 50%
  owned affiliates         4.8        7.1       4.6      3.3       0.0        0.0

  Less: Minority 
  interest in net 
  income of majority-
   owned subsidiaries     -0.3        1.5      -1.7      -3.1     -0.3       -0.3

  Plus: Portion of rental 
  expense representative
  of interest expense      0.0        0.0       0.6       2.0      1.6        0.0

  Plus: Interest 
  incurred less 
  interest capitalized    21.6       89.8      77.4      76.6     59.9       11.9


Computation of  Fixed Charges

Interest incurred        $21.6     $ 89.5    $ 77.4    $ 76.6   $ 59.9     $ 11.9

Amortization of 
debt expenses and
discount or 
premium relating to 
indebtedness              0.0        0.3        0.0       0.0     0.0         0.0

Portion of rental 
expenses representative 
of interest expense       0.0        0.0         0.5       2.0     1.6        0.0

     Fixed Charges      $21.6     $ 89.8      $ 77.9    $ 78.6  $ 61.5     $ 11.9

Ratio of earnings 
to fixed charges          3.7X       4.2X        4.3X      3.7X    3.9X      13.5X