Violets, 142, 281.
Volcanic cones, 30, 94.
Volcanic rocks, 60.
Volcanic storms, 61.
Volcanoes, 30; mud, 51.
Water, action of, on soilbeds, 138.
Water, Owens River, 246.
Waterfalls, Yellowstone, 49; Kaweah, 300.
Wildness, 2; unchangeable, 4.
Willow, dwarf, 94.