Colorado River. Authorizing conveyance of Red Rock railroad bridge near Topock, Ariz., to Arizona and California, jointly or separately, report to accompany H. R. 4910 [authorizing Atchison, Topeka and Santa Fe Railway Company to convey to Arizona and California, jointly or separately, for public highway purposes, existing railroad bridge across Colorado River, formerly known as Red Rock Bridge, near Topock, Ariz.]; submitted by Mr. McFarland.