For all expenses necessary to enable the Secretary to carry into effect the Act of March 5, 1942, as amended (56 Stat. 126-128,

796-797), including personal services in the District of Columbia and elsewhere; printing and binding without regard to section 11 of the Act of March 1, 1919 (44 U. S. C. 111); purchase of books of reference and periodicals; purchase of passenger-carrying vehicles; erection of necessary buildings; procurement of medical supplies or services for emergency use in the field; and the acceptance of donations of land and rubber-bearing plants, and furnishing to employees daily transportation between points of assembly and work projects, $13,048,000: Provided, That any proceeds from the sales of guayule, rubber processed from guayule, or other rubber-bearing plants, or from other sales, rentals, and fees resulting from operations under such Act of March 5, 1942, as amended, shall be covered into the Treasury as miscellaneous receipts.