Defense highway act of 1941. Hearing before the Committee on Post Offices and Post Roads, United States Senate, Seventy-seventh Congress, first session, on S. 1580, a bill to supplement the Federal aid road act, approved July 11, 1916, as amended and supplemented, to authorize appropriations during the National emergency declared by the President on May 27, 1941, for the immediate construction of roads urgently needed for the National defense, and for other purposes, June 4, 1941 ...

Kenneth McKellar, chairman.

Use of road and airdrome construction equipment.

"Supersedes TM5-9500, Principles of modern excavation and equipment, 11 August 1942."

Tentative standard methods of sampling and testing highway materials, adopted by the American Association of State Highway Officials and approved by the Secretary of Agriculture for use in connection with federal-aid road construction. Issued May, 1924; rev. Sept. 1928.

Cover title.

The shape of road aggregate and its measurement.

At head of title: Dept. of Scientific and Industrial Research and Ministry of Transport.

Federal-aid highway act of 1948. Hearings before the Subcommittee on Roads of the Committee on Public Works, House of Representatives, Eightieth Congress, second session, on H.R. 5888 (H.R. 4867 and H.R. 4868) bills to amend and supplement the Federal aid road act approved July 11, 1916 (39 Stat. 355), as amended and supplemented, to authorize appropriations for continuing the postwar construction of highways, and for other purposes. January 29, 30, February 5, 6, 16, 17, and18, 1948.

"No. 16."

The mechanical testing of bituminous road materials. A survey of the literature,

Mode of access: Internet.