Hearing Before the Subcommittee of the Committee on Armed Services, United States Senate, Eighty-fourth Congress, First Session, on H.R. 2581 (H.R. 3761), an Act to Promote the National Defense by Authorizing the Construction of Aeronautical Research Facilities by the National Advisory Committee for Aeronautics Necessary to the Effective Prosecution of Aeronautical Research. March 15, 1955