Public law 79-152, 78th Congress. Government contracts. S. 972. act to amend sec. 7 (c) of act of May 21, 1920 (41 Stat. 613). as amended by sec. 601 of act of June 30, 1932 (47 Stat. 417). [So as to place intergovernmental orders upon same basis as private contract obligations, insofar as their obligation upon appropriations and availability of advance payments are concerned].