Section 45, act Jan. 12, 1938, ch. 2, 1, 52 Stat. 3, related to photographing of defensive installations. See sections 795 to 797 of Title 18, Crimes and Criminal Procedure. Section 45a, act Jan. 12, 1938, ch. 2, 2, 52 Stat. 3, related to photographing, etc., from aircraft. See section 796 of Title 18. Section 45b, act Jan. 12, 1938, ch. 2, 3, 52 Stat. 3, related to reproducing, publishing, selling uncensored copies. See section 797 of Title 18. Section 45c, act Jan. 12, 1938, ch. 2, 4, 52 Stat. 4, related to definitions of aircraft, post, camp, and station. See sections 795 and 796 of Title 18. Section 45d, act Jan. 12, 1938, ch. 2, 5, 52 Stat. 4, related to geographical application of law.