Intermarriage of whites and negroes in the District of Columbia and separate accommodations in street cars for whites and negroes in the District of Columbia. Hearing before the Committee on the District of Columbia, House of representatives, Sixty-fourth Congress, first session, on H.R. 12, H.R. 13, H.R. 274, H.R. 326, H.R. 618, H.R. 715, and H.R. 748. February 11, 1916