
    425 A.2d 28
    Humphreys Exterm. Co. Inc. v. Gardner et al., Appellants.
    Argued June 21,1979.
    Frank Mayer, for appellant; David P. Grau, for appellee.
    Before HESTER, HOFFMAN and CATANIA, JJ.
    
    
      
       President Judge Francis J. Catania of the Court of Common Pleas of Delaware County, Pennsylvania, is sitting by designation.
    
   Order affirmed.  