INDEX. 



Abdomen, 3 

 Acarina, 234 

 Alectorides, 334 

 Alimentation: 



birds, 301 



insects, 24 

 Altricial birds, 281 

 Ametamorphosis, 33, 40 

 Anis, 315, 343 

 Anopheles, 193, 197, 201 

 Ant lion, 225 

 Ants, 164 



artificial nest, 143 



feeding habits, 165 



forming of community, 165 



honey-gathering, 166 



individuals in community, 



165 



industries, 166 



life duration, 168 



mother of community, 165 



nests, 140 



sense of smell, i 56 



study of, 140 

 Aphis lion, 221, 222 

 Aptera, 43 



Arthropoda, 231, 238, 252 

 Arachnida, 238 

 Assassin bug, 117 

 Auk, the great, 351 



the razor-billed, 351 

 Aves, 2, 252 



Back-swimmer, 99, 112 



Baldpate, 341 



Baltimore oriole, 74, 137, 259, 



293 



Bark lice, 118 

 Barn swallows, 97, 256 

 Bats, 200 

 Bee flies, 201, 204 

 Bee jelly, 160 

 Bees and water, 164 

 Bees, bumble, 143, 161 



Bees, honey, 155 



colony founding, i 57 



feeding of larvae, 157 



royal larvas, 160 



sense powers, 155 



study of, 139 



swarming, 160 



significance of, 162 

 Beetles, 67 



habitats, 59, 60, 62, 67 

 Beneficial flies, 188 

 Bembecidae, 169 

 Bill of a bird, 262 

 Biology defined, i 

 Birds, 252 



affection among, 282 



alimentation, 301 



ancient, 253 



choice of a mate, 273 



classification as to residence, 

 278 



economic value of, 255, 259, 

 278, 287 



encouragement of, 73, . 74, 

 278, 294 



feeding of young, 288 



migrations, 274 



nervous system, 296 



nest-making, 284 



notions of cleanliness, 285 



physical features, 262 



relationships, 253 



respiration, 300 

 Birds of prey, 318 

 Bitterns, 331, 332 

 Blackbirds, 74, 97, 137, 256, 284, 



289, 291 

 Blister beetles, 69, 77 



metamorphosis, 77 

 Bluebirds, 97, 137, 256 

 Blue jays, 74, 97, 137, 257, 284 

 Bobolink, 277 

 Bobwhites, 74, 97, 115, 118, 281, 



324, 325 (see Quails) 

 Book lice, 44 



357 



