
    Commonwealth v. Mack, Appellant.
    Submitted April 12, 1971.
    
      Stephen I. Coldring and John J. Dean, Assistant Public Defenders, and George II. Ross, Public Defender, for appellant;
    
      Carol Mary Los and Robert L. Campbell, Assistant District Attorneys, and Robert W. Duggan, District Attorney, for Commonwealth, appellee.
   Order affirmed.  