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                                   EXHIBIT 11

                   ROTO-ROOTER, INC. AND SUBSIDIARY COMPANIES
                     Computation of Per Share Earnings (a)
                    (in thousands except per share amounts)




                                                                    Year Ended December 31,       
                                                              ---------------------------------------------------
                                                                                                
Computation of Earnings per Common and                          1992                 1993                  1994  
       Common Equivalent Share:                               --------             --------              --------
- ----------------------------------------
Reported Income before Minority Interest                       $6,857               $8,387                $9,015
                                                               
Minority Interest                                                 232                  414                   244
                                                               ------               ------                ------
Net Income                                                     $6,625               $7,973                $8,771
                                                               ======               ======                ======
Average Number of Shares Used to                               
  Compute Earnings Per Common Share                             4,994                5,027                 5,066
                                                               
Effect of Unexercised Stock Options                                37                   59                    48
                                                               ------               ------                ------
Average Number of Shares Used to Compute                       
  Earnings Per Common and Common                               
  Equivalent Share                                              5,031                5,086                 5,114
                                                               ======               ======                ======
Earnings Per Common and Common                                 
  Equivalent Share                                             $ 1.32               $ 1.57                $ 1.72
                                                               ======               ======                ======
                                                               
Computation of Earnings Per Common Share                       
        Assuming Full Dilution:                                
- ----------------------------------------                       
Reported Income before Minority Interest                       $6,857               $8,387                $9,015
                                                               
Minority Interest                                                 232                  414                   244
                                                               ------               ------                ------
Net Income                                                     $6,625               $7,973                $8,771
                                                               ======               ======                ======
Average Number of Shares Used to                               
  Compute Earnings Per Common Share                             4,994                5,027                 5,066
                                                               
Effect of Unexercised Stock Options                                72                   99                    48
                                                               ------               ------                ------
                                                               
Average Number of Shares Used to Compute                       
  Earnings Per Common Share Assuming                           
  Full Dilution                                                 5,066                5,126                 5,114
                                                               ======               ======                ======
Earnings Per Common Share Assuming                             
  Full Dilution                                                $ 1.31               $ 1.56                $ 1.72
                                                               ======               ======                ======
                                                               
<FN>                                                               

(a)  This calculation is submitted in accordance with Regulation S-K, Item
     601(b)(11), although not required by footnote 2 to paragraph 14 of APB
     Opinion No. 15 because it results in dilution of less than 3% including
     fractional cents per share.