Colorado Interstate Gas Co. Nos. 379-380, in Supreme Court of United States, Oct. term, 1944, Colorado Interstate Gas Company v. Federal Power Commission, City and County of Denver, Colo, [et al.]; Canadian River Gas Company v. [same], on petitions for writs of certiorari to circuit court of appeals for 10th circuit; brief for Federal Power Commission, City and County of Denver, Colo., and Public Service Commission of Wyoming, in opposition.