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[[underline]] Part Second.[[/underline]]
Drainage
The Summer rains, but few at best, in the immediate vicinity of the Colorado basin are generally produced by Southeast winds which are the most prevalent during the summer.
Rain, at this season of the year, often reaches the earth in sudden and vast volumes called [[underline]] "Cloud bursts" [[/underline]] caused, it is claimed, by the alternating position of the hot, deep, and sandy valleys and steep, high ranges, the reflected heat of the former shifting the tendancy of the clouds to a condensation to rain upon the extreme point, and these, approaching the somewhat cooler mountain chain discharge their moisture at once and sheets of water come down to the earth and force an exit with swift, ruthless force, toward the lowlands and river through channels of their own making called [[underline]] "washes" [[/underline]] as shown in the following sketch.
[[drawing of landscape from Colorado River to mountains]]
WASHES - CAUSE AND EFFECT.