Allen's Park, 339. 

 Andrews Glacier, 343. 

 Arapahoe Glacier, 251, 255, 260, 



261, 343. 



Arapahoe Peak, 260. 

 Ash, seeds, 296. 

 Aspen, after a fire, 160. 

 Aspen Gulch, 13-15. 

 Avalanches. See Rock avalanche, 



Snowslides. 



Basswood, seeds, 300. 



Bears, escaping from a forest 

 fire, 143, 144; a mother and 

 cubs, 240. 



Bears, black, two cubs and a 

 forest fire, 144; attacked by 

 wasps, 1 80; carrying pine 

 cones, 301. 



Bears, grizzly, and a forest fire, 

 144; and roasted deer after 

 the fire, 149, 150; two pet 

 cubs, 207-209; the further 

 history of Johnny, 209-219; 

 curiosity, 214; agility, 215. 



Beaver, the Moraine Colony, 

 19-46; characteristics and use- 

 fulness, 19, 40, 41, 46, 47; 

 dams, 21, 31-34, 45, 53, 54; 

 houses, 21, 22, 31, 42, 44, 54; 

 felling trees, 21, 24, 25, 58-65; 

 harvest piles, 22, 41, 42, 56, 57, 



65, 66; cooperation, 22-24, 43, 

 44; working by daylight, 23, 

 62; play, 23; transporting logs 

 and branches, 23, 24, 54-62; 

 village destroyed by fire, 26, 

 27; attacked by mountain 

 lion, 28, 29, 35, 36; attacked 

 by coyote, 29, 30, 36; journey- 

 ing by water and by land, 30, 

 31; migration from ruined vil- 

 lage, 29-31 ; raided by trappers, 

 31; need of ponds, 34, 35; 

 house dynamited, 35; young, 

 36, 37; a migration witnessed, 

 38, 39; aged beaver, 38, 39, 

 51, 52, 63-65; explorations 

 of old males, 39, 40; the first 

 conservationist, 40, 41 ; making 

 a new pond, 44, 45; pitchy 

 wood and dead wood avoided, 

 45, 46; canals, 45, 56; ford, 

 45, 52, 66; the Spruce Tree 

 Colony, 51-67; tunnels, 53; log 

 slides, 54-56 ; the Island Colony, 

 61, 62; ready for winter, 66. 



Beetles, depredations in forests, 

 174-181, 195. 



Big Thompson River, 345. 



Big tree, immune from insects, 

 173; seeds, 299. 



Bighorn. See Sheep, mountain. 



Birds, of Estes Park, 347. 



351 



