INDEX 



Adaptation of birds to man, 191-195 

 Albatross, 3 

 Alligator, 132 



Anemones, 151-153, 155, 168 

 Animals, names of, 271-276 

 Antelope, scent glands of, 201 

 Ants, 202-204 

 Aurelia, 163, 165 



B 



Baboons, voice of, 268 

 Barnacles, 148, 149 

 Bats, 57, 59-62 

 Batrachians, 82 



names of, 278 

 Beach pea, 147 

 Bears, 111 



sounds of, 267 



polar, 337 

 Beech, 330-332 

 Beroe, 155 



Beetle, music of, 204 

 Birds, accidents to, 73-78 



as affected by trees, 324 



distribution of, 3, 4 



nesting in New York City, 173-181 



young of, 230, 231 

 Bittern, 189 

 Blackbirds, rusty, 107, 211 



red-winged, 140-141, 185-186 

 Bluebird, 64, 108 

 Boatmen, water, 121 

 Bobolink, 101, 107 

 Bob-white, 5, 63, 97, 101 

 Boltenia, 169, 170 

 Bryozoans, 300, 304 

 Butcherbird, see northern shrike 



Butterfly, 281, 282 



mourning cloak, 58, 59 



music of, 204 

 Buzzard, 4 



C 



Cardinal, 131, 197 



Caribou, 111 



Catbird, 193 



Catfish, 47 



Cecropia, 27 



Cedarbirds, see waxwings 



Che wink, see Towhee 



Chickadee, black-capped, 6, 112, 113 



nest of, 308, 309 

 Cicada, song of, 204, 205 

 Civet cat, 200 

 Cocoons, 26-29, 55 

 Cobwebs, 246-248 

 Coloration, protective, 31-36 



of nests, 311 

 Condor, 4 



Courtship of birds, 129, 130 

 Cowbird, 107, 193, 286 

 Coyote, voice of, 268 

 Crab, horseshoe, 245, 246 

 Crab-apple tree, 324 

 Creeper, brown, 4, 5 

 Crocodile, 132 

 Crossbill, American, 40, 41 

 Crow, 43, 178, 193, 258 



fish, 178 



migration of, 66 

 Crystals, snow, 12-18 

 Ctenophores, 154, 155 

 Cuckoo, black-billed, 176 



nest of, 310 



yellow-billed, 176 

 Cyclops, 304 

 341 



