53 STAT.] 76TH CONG., 1ST SESS.-CHS. 28, 34 , 3-Mar29, 1939 Apr. 1, 3, 1939 States during the calendar year 1939", approved June 25, 1938, is hereby amended by inserting after the word "Microbiologists" the following section: "SEC. 2 . That the sum of $10,000, or so much thereof as may be necessary, is hereby authorized to be appropriated, out of any money in the Treasury not otherwise appropriated, for the expenses of organizing and holding the Third International Congress for Micro- biology, including personal services in the District of Columbia and elsewhere, without regard to the Classification Act of 1923, as amended; communication services; stenographic reporting, translat- ing, and other services by contract if deemed necessary, without regard to section 3709 of the Revised Statutes (U. S . C., title 41, sec. 5); travel expenses; local transportation; hire of motor-propelled passenger-carrying vehicles; transportation of things; rent in the District of Columbia and elsewhere; printing and binding; entertain- ment; official cards; purchase of newspapers, periodicals, books, and documents; stationery, membership badges, and such other expenses as may be actually and necessarily incurred by the Government of the United States by reason of observance of appropriate courtesies in connection therewith, and such other expenses as may be authorized by the Secretary of State, including the reimbursement of other appropriations from which payments may have been made for any of the purposes herein specified." Approved, March 29, 1939. [CHAPTER 34] JOINT RESOLUTION Making an additional appropriation for the fiscal year 1939 for expenditure by the United States Employees' Compensation Commission in accordance with section 16 of the Emergency Relief Appropriation Act of 1938. Resolved by the Senate and House of Representatives of the United States of America in Congress assembled, That the sum of $2,000,000 is hereby appropriated, out of any money in the Treasury not other- wise appropriated, for expenditure during the fiscal year ending June 30, 1939, by the United States Employees' Compensation Com- mission in accordance with the provisions of section 16 of the Emer- gency Relief Appropriation Act of 1938. Approved, April 1, 1939. [CHAPTER 35] AN ACT To provide more effectively for the national defense by carrying out the recommendations of the President in his message of January 12, 1939, to the Congress. Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled, That the Act approved June 24, 1936 (49 Stat. 1907), is hereby repealed. Section 8 of the Act of July 2, 1926 (44 Stat. 780), is hereby stricken out and the following is substituted in lieu thereof: "SEc. 8. The Secretary of War is hereby authorized to equip and maintain the Air Corps with not to exceed six thousand serviceable airplanes, and such number of airships and free and captive balloons as he may determine to be necessary for training purposes together with spare parts, equipment, supplies, hangars, and installation neces- sary for the operation and maintenance thereof; and there is hereby authorized to be appropriated for such purposes an amount not 98907'- 3 9 -- -PT 2-4 555 52 Stat. 1207. Appropriation au- thorized for expenses. Post, p. 988. Personal services. 5 U.S .C. §§661-674; Supp. IV, §§ 673, 673c. Contract services. R. S. § 3709. 41 U.S.C . §5. Reimbursement of other appropriations. April 1, 1939 [H. J. Res. 250] [Pub. Res., No. 71 U. S . Employees' Compensation Com- mission. Additional appro- priation for designated expenses. 52 Stat. 814 . April 3, 1939 [H. R . 3791] [Public, No. 18] National defense, Army. Legislation re- pealed. 49 Stat. 1907; 44 Stat. 783. 10 U. S. C., Supp. IV, 292b-1; 10U.S.C. § 292b. Army Air Corps. Equipment and maintenance of desig- nated aircraft. Appropriations au- thorized. Pot, pp. 994, 996, 1327.