Section 616a, acts Mar. 26, 1934, ch. 90, 48 Stat. 500; June 29, 1936, ch. 858, title II, Sec. 204, 49 Stat. 1987, which related to the shipment of exports financed by the Government in United States vessels, was transferred to section 1241-1 of Title 46, Appendix, Shipping