To enable the Secretary of Agriculture to further carry out the provisions of section 32, as amended, of the Act entitled "An Act to amend the Agricultural Adjustment Act, and for other purposes", approved August 24, 1935, and subject to all provisions of law relating to the expenditure of funds appropriated by such section, during the fiscal year ending June 30, 1944, funds appropriated by or for the purposes of section 32 of said Act shall be available to the Secretary of Agriculture for the maintenance and operation of a school milk and lunch program under clause (2) of said section 32 in a sum not exceeding $50,000,000: Provided, That such funds shall be available for such purposes during the fiscal year 1944 without regard to the requirement therein relating to the encouragement of domestic consumption but no part of such funds shall be available to defray the expenses of any activity heretofore carried on by the Work Projects Administration.