Hearings Before the Investigations Subcommittee of the Committee on Expenditures in the Executive Departments, United States Senate, Eighty-first Congress, First Session, Pursuant to S. Res. 52, a Resolution Authorizing the Committee on Expenditures in the Executive Departments to Carry Out Certain Duties, August 8, 9, 10, 11, 12, 15, 16, 17, 23, 24, 25, 26, 30, 31, and September 1, 1949