
    No. 307.
    No. 502.
    No. 503.
    Chicago, Milwaukee, St. Paul & Pacific Railroad Co. v. Illinois et al.; United States v. Illinois et al.; and Interstate Commerce Commission v. Illinois et al.
    
      W. J. Quinn and Edwin R. Eckersall for appellant in No. 307. Solicitor General Rankin, Assistant Attorney General Hansen and Charles H. Weston for the United States, appellant in No. 502. Robert W. Ginnane and Leo H. Pou for appellant in No. 503. La-tham Castle, Attorney General, and Harry R. Begley, Special Assistant Attorney General, for the State of Illinois et al., and Roger Sherman, Henry F. Tenney and S. Ashley Guthrie for the Milwaukee Road Commuters' Association, appellees.
   Appeals from the United States District Court for the Northern District of Illinois. Probable jurisdiction noted.  