
    Harvilla et al., Appellants, v. Matter Collieries.
    Argued Novena-; ber 9, 1965.
    
      Kenneth J. Yablonslci, for appellants;
    
      Benjamin Diamond, Special Assistant Attorney General, Clyde M. Hughes, Jr:, Assistant Attorney General, and Walter E. Alessandroni, Attorney General, for Commonwealth, appellee, submitted a brief.
   Judgment affirmed.

Flood, J., absent.  