Forest fires, watching, 139-170;
varying speed of, 141, 142, 167;
wild animals in, 142-145;
rarely make a clean sweep, 145, 146;
dead trees burning after, 146, 147;
extent, 147;
destroy humus, 148, 149;
loss of animal life in, 149;
storm of ashes after a fire, 150, 151;
upbuilding after, 152;
origins of, 152, 153, 155, 156, 162, 163, 176;
methods of fighting, 152, 153, 163-165;
trees standing after, 154, 158;
geysers of flame, 158, 159, 169;
duration of, 161, 162;
protection against, 163-165;
erosion after, 165, 166;
explosions of rock caused by, 169, 170;
interrelation with destructive insects, 173, 174, 186;
wood preserved by, 187.
Forests, as wood-producers, 124;
as water-distributors, 124, 125;
other uses, 125;
as moderators of climate, 125, 126;
as windbreaks, 126;
delaying evaporation, 126-129;
necessary to agriculture, 127, 128;
as reservoirs, 128-130;
as regulators of stream-flow, 130;
as makers of soil, 131, 132;
as bird-shelters, 132, 133;
as sanitary agents, 133;
evils following destruction of, 134;
preëminent in promoting the general welfare, 134, 135;
insect enemies of, 173-189;
observations of a forested and a deforested region during
a rain, 267-287;
the forest floor, 273, 274.
Fort Garland, 112, 113, 118, 119.
Fungi, enemies of trees, 183, 184.
Fungus, false-tinder, 184.
Glacier Gorge, 341, 347.
Glaciers, work of, 247-250;
Muir and Henderson on, 250;
rate of movement, 251;
Arapahoe, 251, 255, 260, 261;
grinding and excavating powers, 251-253;
moraines, 253-255;
lakes made by, 253, 343;
strange freight, 255, 256;
mineral wealth, 256;
making soil, 257;
formation, 258, 259;
in the Rocky Mountains, 258, 260-263, 338, 341-343;
bergschlunds and crevasses, 260, 261;
pleasures of investigation, 263.
Grand Lake, 348.
Grand River, 309;
forest fires on, 140-153.
Granite Pass, wind in, 75-77.
Greenwood, Grace, 337.
Ground-hog, 282.
Grouse, fleeing from a forest fire, 144.
Hallett Glacier, 343.
Hallett Peak, 341.
Henderson, Junius, quoted, 250.
Horne's Peak, 102.
Ice, climbing with a dog over, 310, 314, 317-320.
Insects, in the forest, 173-189;
interrelation with forest-fires, 173, 174, 186;
beetles, 174-181;
weevils, 182;
borers, 182;
serial attacks, 182, 183;
interrelation with parasitic plants, 183, 184;
seriousness of their ravages, 185, 186, 189;
control of depredations, 187-189;
woodpeckers the enemies of, 193-204.
Ironwood, seeds, 300.
Jay, crested, 149.
Jay, Rocky Mountain, _or_ gray jay, _or_ camp-bird, 149, 180, 223.
Lake City, 223.
Landslides, a night and a day of, 232-239;
on a deforested slope, 281, 282;
a liquefied landslide, 283, 284. _See_ Rock avalanche.
Leadville, 98-100.