WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

  

                                EXHIBIT 11
                ROTO-ROOTER, INC. AND SUBSIDIARY COMPANIES
                   COMPUTATION OF PER SHARE EARNINGS (a)
                  (in thousands except per share amount)
                                UNAUDITED
<F1>
       

                                 Three Months Ended      Six Months Ended
                                       June 30,               June 30,   
                                 -------------------     ----------------- 
                                   1996      1995          1996      1995
                                 -------    -------      ------    -------
                                                       
Computation of Earnings Per 
  Common Share and Common 
  Equivalent Share:    
- ---------------------------
Net Income                       $ 2,785    $ 2,225      $ 5,344  $ 4,476
                                 =======    =======      =======  =======
Average Number of Shares Used
  to Compute Earnings 
  per Common Share                 5,158      5,088        5,151    5,085
Effect of Unexercised 
  Stock Options                       62         43           56       38  
                                 -------    -------      -------  -------
Average Number of Shares Used
  to Compute Earnings per
  Common and Common 
  Equivalent Share                 5,220      5,131        5,207    5,123
                                 =======    =======      =======  =======
Earnings per Common and 
Common Equivalent Share          $   .53    $   .43      $  1.03  $   .87
                                 =======    =======      =======  =======
Computation of Earnings 
  Per Common Share Assuming 
  Full Dilution:       
- ---------------------------
Net Income                       $ 2,785    $ 2,225      $ 5,344  $ 4,476
                                 =======    =======      =======  =======
Average Number of Shares 
  Used to Compute Earnings 
  per Common Share                 5,158      5,088        5,151    5,085
Effect of Unexercised 
  Stock Options                       65         51           67       51  
                                  -------    -------      -------  -------
Average Number of Shares 
  Used to Compute Earnings 
  per Common Share Assuming 
  Full Dilution                    5,223      5,139        5,218    5,136
                                 =======    =======       =======  =======
Earnings per Common Share 
  Assuming Full Dilution         $   .53    $   .43      $  1.02  $    .87
                                 =======    =======      =======  =======
        
- ------------------
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(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.

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