Railroad crossings. New York Avenue bridge, hearings before subcommittee on streets and traffic, 74th Congress, 1st session, on H. R. 6656 [to authorize Pennsylvania Railroad Company, operating lessee of properties of Philadelphia, Baltimore and Washington Railroad Co., by means of overhead bridge to cross New York Avenue Northeast, to extend, construct, maintain and operate certain industrial side tracks, and for other purposes] and H. R. 7447 [to amend act to provide for union railroad station in District of Columbia, and for other purposes, relative to construction of certain railroad crossings by Baltimore and Ohio Railroad Company and Philadelphia, Baltimore and Washington Railroad Company].