50 U.S.C. § 177 to 179
Section 177, act June 25, 1906, ch. 3540, 34 Stat. 463, related to contracts for construction of fortifications and other works of defense.
Section 178, act , No. 21, 30 Stat. 737, provided for erection of forts in emergency. See sections 4776 and 9776 of Title 10, Armed Forces.
Section 179, act June 30, 1921, ch. 33, § 1, 42 Stat. 81, related to chargeability of appropriations with respect to transportation cost incident to construction and maintenance of seacoast fortifications.