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 Apr. 11, 1898, 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.