B. The effect of drought overcome.
a. In limited areas—by sprinkling.
b. In extensive areas—by irrigation.
Tarr and McMurry, p. 120. Dodge, Adv. Geog., p. 166. King, Adv. Geog., pp. 141-146.
Method of Procedure
C. Sources of water supply.
a. Rivers.
b. Mountain streams fed by rain, snow, or glaciers.
c. Artesian wells.