d. Lakes.
Tarr and McMurry, pp. 129-133. Dodge, Adv. Geog., p. 172. King, Adv. Geog., p. 142. Review of Reviews, 31:701-704.
D. The process of irrigation.
a. Water storage, reservoirs, dams.
b. Ditches or canals.
c. Surface irrigation.
d. Subirrigation.
See geographies quoted under C, above. Popular Science Monthly, 67:648-686.
E. The reclamation service.
a. The nature of its work.