258 
INDEX. 
Botany, 31 
Branchial arches of fish, 170 
Bream, 14 
Breeding-cage, 6 
Brittle starfish, 144 
Butterflies, 5, 21, 45 
Butterfly enemies, 50 
Byssus, 167 
C 
Cabbage-butterfly, 49 
Caddis-fly and larva, 79 
Calcareous sponges, 125 
Campanularian hydroids, 14 
Carapace, 104 
Carbon, 28 
Carbon dioxid, 28 
Care of specimens, 17 
Care of young among birds, 202 
Carpus, 194, 204, 210 
Case insects, 12 
Cat, 211 
Caterpillars, 6, 48 
Catfish, 14 
Catocala, 52 
Causes of dispersals, 238 
Cecropia, 22 
Cell, 117 
Centipede, 98, 99 
Cephalopoda, 166 
Cephalothorax, 101 
Cerebellum, 173 
Cerebral lobes, 173 
Cerebrum, 173 
Chalk animals, 120 
Characteristics of actinozoa, 137 
“ “ amphibia, 192 
“ “ arachnida, 113 
“ “ birds, 205 
“ “ coelenterata, 137 
“ “ Crustacea, 113 
u “ echinodermata 
“ “ hydrozoa, 147 
u il mollusca, 166 
“ “ pisces, 175 
“ “ protozoa, 123 
“ “ reptilia, 192 
u “ scyphozoa, 137 
Chemistry of life, 24 
Chimpanzee, 182 
Chitin, 44 
Chordata, 2, 174, 254 
Chrysalids, 48 
Cilia, 121 
Circulation of birds, 201 
“ “ fish, 171 
“ “ frog, 185 
“ “ man, 221 
Classes, 112 
Classification of animal kingdom, 
2, 243, 253, 254, 
255 
“ “ arthropoda, hi 
“ ** birds, 207 
“ “ insecta, 64 
“ “ mammalia, 224 
Clavicle, 194 
Clitellum, 149, 151 
Cloaca, 201 
Cockroach, 20, 86 
Cocoons, 48 
Coelenterata, 2, 128, 129, 137, 253 
Coleoptera, 65 
Collecting, 4 
Colonies, 14, 132 
Colorado beetle, 60, 238 
Columbinse, 208 
Commenselism, 132 
Common crab, 2, 108 
Compound eye, 41 
Compounds, 27 
Condyle, 188, 210, 217, 219 
Contractile vacuole, 117 
Coracoid bones, 203 
Coral, 2, 135 
Cornea, 214 
Corpuscles, 184 
Costal, 56 
Coxa of insects, 34 
Coxopodite, 104, 107 
Crayfish, 2, 13, 101 
Cricket, 5, 41, 42 
Crinoids, 146 
Cross-fertilization, 131 
Crow, 23 
Crustacea, 101 
Ctenophora, 253 
Cyclops, 11, 109 
D 
Danais archippus, 68 
Daphnia pulex, 109 
