Beaver, anatomy, 16; as a pet, 31; bait, 29; bank burrows, 17; Bradbury's views on their tree felling, 27; capture of, in bank burrows, 31; castoreum, 27; chips, 25; colour of, 13; cry of, 31; dams, 18, 21; disappearance, 28, 244, 273, 294, 302, 304; education of the young, 28; explanation of half-cut trees, 28; family, members of, 31; food, 16; for an emblem, 31; form of dams, 21; fur of, 13; genus of, 16; incentive to exploration, 12; in the water, 24; intellectuality, 17; intelligence, 13; kind of trees chosen, 27; lodges, construction of, 21; lodges chopped open in winter, 31; meadows, 24; meat, 25; mental qualities, 16; methods, 16; method of building, 18; methods of capture other than with traps, 29-31; method of cutting, 25; musk, muskbogs, 27; nature of, 31; never found in deep canyons, 17; never steps backwards, 31; numbers of, 12; number trapped in a single night, 15, 18; on Green River in 1871, 24; on upper Missouri, Lewis and Clark Expedition, 164; order to which it belongs, 13; outcast, 31; ponds, 21; reduction of numbers, 26; sample of tree-gnawing, 26; search for beaver grounds, 29; signal of alarm, 24; size of, 13; size of trees felled, 27; spillways, 20; tail, description of, 24; tail soup, 25; taming of, 31; testing for traps, 28; time able to remain under water, 27; time required to fell tree, 27; trappers' stories, 21; trapping, profits of, 15; trapping responsible for breaking trails, 304; traps, 28; weight of, 13; winter food, 21; works executed by, 16 _Beaver_, Astoria supply ship, 215 Beaver Dam Mountains, 309 Becknell, William, goes to Santa Fé, 1821, 257; goes west of Santa Fé, 249; used waggons to Santa Fé, 272 Beckwourth, James P., 263; a chief of the Crows, 238; age of, 238; character of, 238; with Ashley, 237 Beckwourth and Smith make a raid, 264 Bell, J. R., Captain, with Long, 223 Beltran, Friar, goes to New Mexico, 114 Benavides, route of, 116 Benton, Senator, meets Frémont, 300 Bering explores from Kamtchatka east across the sea, 140 Berkeley, Hon. Grantley F., his description of marrow-bones, 41; his love for marrow, 41 Bernalillo as the site of Tiguex, 114 Berthoud, E. L., explores road from Denver to Salt Lake, 315; tries to explore Green River, 314 Beverages of Amerinds, 70 Bible, the Mormon view of it, 304 Biddle, Captain, takes formal possession of Astoria, 219 Bidwell, Captain, cited, 278