act June 25, 1906, ch. 354034 Stat. 463Section 177, , , related to contracts for construction of fortifications and other works of defense.
30 Stat. 737Section 178, act , No. 21, , provided for erection of forts in emergency. See sections 4776 and 9776 of Title 10, Armed Forces.
act June 30, 1921, ch. 33, § 142 Stat. 81Section 179, , , related to chargeability of appropriations with respect to transportation cost incident to construction and maintenance of seacoast fortifications.