
    No. 332.
    No. 333.
    No. 334.
    No. 335.
    Cranberry Creek Coal Company v. Commonwealth of Pennsylvania; Alliance Coal Mining Company v. Commonwealth of Pennsylvania; Lehigh Coal & Navigation Company v. Commonwealth of Pennsylvania; and Philadelphia & Reading Coal & Iron Company v. Commonwealth of Pennsylvania.
    Error to the Supreme Court of the State of Pennsylvania.
    Argued December 3, 4, 1924.
    Decided December 8, 1924.
    
      Mr. William Clarke Mason, with whom Mr. Charles Heebner and Mr. Wm. Jay Turner were on the brief, for plaintiffs in error. Mr. George W. Woodruff and Mr. John Robert Jones appeared for defendant in error.
   Per Curiam.

Judgments affirmed with costs, upon the authority of Heisler v. Thomas Colliery Co., 260 U. S. 245, 255; Oliver Iron Mining Co. v. Lord, 262 U. S. 172, 177-179.  