EXHIBIT 23
                                
                                
            CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS


As independent public accountants, we hereby consent to the
incorporation of our reports, included or incorporated by
reference in this Form 10-K, into the Company's previously filed
registration statements on Form S-8, Registration No. 2-80182,
Form S-8, Registration No. 33-25331, Form S-8, Registration
No. 33-55768, Form S-8, Registration No. 33-55766 and Form S-3,
Registration No. 33-61854, including the prospectuses therein,
relating to the company's Stock Option Plan of 1982, Stock Option
and Incentive Plan of 1988, Stock Option and Incentive Plan of
1992, Directors Stock Incentive Plan and the Dividend
Reinvestment and Stock Purchase Plan (as amended).  It should be
noted that we have not audited any financial statements of the
Company subsequent to June 30, 1994 or performed any audit
procedures subsequent to the date of our report.


                                                       ARTHUR ANDERSEN LLP


Pittsburgh, Pennsylvania
September 21, 1994