Section, act Feb. 20, 1929, ch. 270, 45 Stat. 1243 (repeated as a proviso in subsequent appropriations for the Commission), related to procurement of supplies and services. Act February 20, 1929, and the similar provisos in subsequent appropriation acts were repealed by act Oct. 10, 1940. A similar provision was enacted by act Oct. 10, 1940, as part of the consolidated exceptions to section 5 of former Title 41, Public Contracts. For disposition of sections of former Title 41, see Disposition Table preceding section 101 of Title 41.