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                                                                    EXHIBIT 23.1
 
                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS
 
     As independent public accountants, we hereby consent to the use in this
registration statement of our report dated February 14, 1996, and to all
references to our Firm included in this registration statement.
 
   
                                          /s/ ARTHUR ANDERSEN LLP
                                          -----------------------
    
 
                                          ARTHUR ANDERSEN LLP
 
Chicago, Illinois
   
January 24, 1997