
    Commonwealth v. Johnson, Appellant.
    Submitted September 13, 1971.
    
      J. Taney Willcox, Jr., for appellant; Milton M. Stein, Assistant District Attorney, James D. Crawford, Deputy District Attorney, Richard A. Sprague, First Assistant District Attorney, and Arlen Specter, District Attorney, for Commonwealth, appel-lee.
   Order affirmed.  