
    Swann v. Performance Contractors, Ltd., Appellant. P. R. Insulation, Ltd., Inc. v. Performance Contractors, Ltd., Appellant.
    Argued November 14, 1973.
    
      Joseph J. Bernstein, with him Marvin J. Apple, Edgar J. Cooke, and Apple and Bernstein, for appellant; John H. Scott, Jr., with him William E. Miller, Jr., Robert M. Walter, and Reed, Smith, Shaw and McGlay, for appellees.
   The record is remanded for an evidentiary hearing, all proceedings to stay meanwhile.

Spaulding, J., absent.  