1

                                                                       FORM 10-Q
                                                                      EXHIBIT 11

                STATEMENT RE: COMPUTATION OF PER SHARE EARNINGS

   Net income per share is computed based on the weighted average number of
shares outstanding, including the dilutive effect of stock options, as follows:



- -------------------------------------------------------------------------------------------------------------------
                                                                  Three Months Ended          Nine Months Ended
- -------------------------------------------------------------------------------------------------------------------
                                                                     September 30,              September 30,
         (in thousands, except per share amounts)                  1996         1995          1996         1995
- -------------------------------------------------------------------------------------------------------------------
                                                                                            
NET INCOME:                                                     $9,603        $8,984      $27,604       $23,837
                                                                ======        ======      =======       =======

PRIMARY EARNINGS PER SHARE:
   Actual average shares outstanding                            14,431        14,238      14,403        14,181
   Net effect of the assumed exercise of stock options -- 
       based on the treasury stock method using average 
       market price for the period                                 245           388         279           364
                                                                ------        ------      ------        ------
   Pro forma average shares outstanding                         14,676        14,626      14,682        14,545
                                                                ======        ======      ======        ======
   Net Income Per Share                                         $ 0.65        $ 0.62      $ 1.88        $ 1.64
                                                                ======        ======      ======        ======


FULLY DILUTED EARNINGS PER SHARE:
   Actual average shares outstanding                            14,431        14,238      14,403        14,181
   Net effect of the assumed exercise of stock options -- 
       based on the treasury stock method using higher of 
       average or closing market price                             248           388         279           409
   Pro forma average shares outstanding                         14,679        14,626      14,682        14,590
                                                                ======        ======      ======        ======
   Net Income Per Share                                         $ 0.65        $ 0.61      $ 1.88        $ 1.63
                                                                ======        ======      ======        ======