<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
THE REGISTRANT'S AUDITED MAY 31, 1995 CONSOLIDATED FINANCIAL STATEMENTS AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER>    1,000
       
                             
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          MAY-31-1995
<PERIOD-END>                               MAY-31-1995
<CASH>                                          25,988
<SECURITIES>                                         0
<RECEIVABLES>                                  102,694
<ALLOWANCES>                                     3,249
<INVENTORY>                                    125,384
<CURRENT-ASSETS>                               292,774
<PP&E>                                         897,845
<DEPRECIATION>                                 550,706
<TOTAL-ASSETS>                                 753,055
<CURRENT-LIABILITIES>                          105,171
<BONDS>                                        185,274
<COMMON>                                        12,534
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                        598
<OTHER-SE>                                     329,977
<TOTAL-LIABILITY-AND-EQUITY>                   753,055
<SALES>                                        830,526
<TOTAL-REVENUES>                               830,526
<CGS>                                          681,824
<TOTAL-COSTS>                                  681,824
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                 1,678
<INTEREST-EXPENSE>                              20,117
<INCOME-PRETAX>                                 77,881
<INCOME-TAX>                                    25,700
<INCOME-CONTINUING>                             52,181
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    48,017
<EPS-PRIMARY>                                     3.88
<EPS-DILUTED>                                     3.88