22 MISC. PUBLICATION 162, U. S. DEPT. OF AGRICULTURE 
stantly shifting from place to place, sometimes burying fences, roads, 
and railways. 
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FIguRE 13.—The white cascade of a forest stream. Forest-protected hillsides 
mean a constant flow of water, pure and fresh for drinking purposes, and 
abundant for power and other domestic and industrial uses. 
Besides serving us in these various ways the forest offers oppor- 
tunity for pleasure and recreation for both young and old. It is, of 
course, an ideal camping place; it furnishes playgrounds and shaded 
resorts for picnics and excursions; its streams and lakes are the de- 
light of the fisherman; and its dusky recesses are the mecca of the 
