Index 



489 



Carbon dioxide, sign of life, 318 



sugar synthesis, 93 



see Crustacea, light response 

 Carboniferous period, life, 121-5, 

 ill. 124 



climate, 124-5 

 Caribou, see Barren ground, 



Woodland, ill. 169 

 Carinatae, 130 



Carnegie Institution, biological la- 

 boratories, 73-4 



Department of Embryology, 73 



Nutrition Laboratory, 284 

 Carnivores, origin, 140, 142 

 Carp, survival in ice, 381 

 Carrel, 196-7 

 Carroll, 451, 452; ill. 451 

 Carter, 453 



Cassowary, distribution, 139 

 Cassin, 44, 54 

 Cassiopea, 348 



Castle, 88, 238, 267; quoted, 266 

 Castration, 325; see Sterilization 

 Cat, see Bob-tailed 

 Catalyzer, 295, 318 

 Caterpillars, color, 334; see Mimi- 

 cry 



Catlin, 441 



Cattle, color, horns; see Inherit- 

 ance 



Cave, Port Kennedy, 42; see Ani- 

 mals 



Cecropia moth, grafting, 196 

 Cedar, see Bed 

 Celsus, 470 

 Cell, growth, 198-99 



immortality, 201 



problems, 480 



see Germ 



Centipedes, fossil, 124 

 Centrifuge, 52, 376 

 Cephalopods, destruction, 156 



see Octopus 

 Ceratium, 92; ill. 91 

 Ceratophyllum, see Hornwort 

 Cerebratulus, development experi- 

 ments, 192 



Cerion, influence environment, 256 

 Cestracion, invariability, ill. 120 

 "Challenger," 363, 366 

 Chameleon, color changes, 333 

 Characteristics of life, see Life 

 Characters, acquired, see Inherit- 

 ance 



Chaulmoogra, see Lepers 

 Chemical treatment, see Seed 

 Chestnut, Chinese, bark disease, 

 416 



Chiasmodus, 358; ill. 356 

 Chicken, see Web-footed 

 Child-bed, see Puerperal 

 Chipmunks, distribution, 176 

 Chittenden, quoted, 286-92 

 Chlorophyl, 81, 93-4, 98, 297, 330, 

 383 



composition, function, origin, 



480 



Cholera, see Hog 

 Chorea, 271-2 



Chromatin, see Chromosomes, Mi- 

 tosis 

 Chromatophores, 333 



algse, 94 

 Chromogen, 333 

 Chromosomes, 478 



accessory, 209 



homologous, 206 



in development and inheritance, 

 202 et seq. 



sex, 206, 208 



ill. 204 et seq. 



see Cancer 



Chydorus sphaericus, 232 

 Cilia, specializations, 91-2 

 Ciliates, 90; ill. 90-1 

 Circulation in plants, 299 

 Circumcision, 244 

 Citrange, 268 

 Cladoselache, structure, 120 



fins, 112 



ill. 112 

 Clams, 353 

 Cleft palate, 272 

 Clements, 158 



Climatic factor, see Huntington 

 Closing nets, 371 

 Coast Survey, see U. S. 

 Cock, see Sexual Selection 

 Codfish, 423, 425 

 Coleps, shell, 92 



ill. 91 



Colleges, see Harvard, Kings, 

 Pennsylvania, Princeton, 

 William & Mary's, Yale 

 Color, adaptation, 330 et seq. 



blindness, 214 



cause, see Animal 



flowers, metabolic by-product, 

 330 



man, see Inheritance 



protective, 335 et seq. 



warning, 346, 348 

 Columbia University, 50, 202 

 Commander Islands, see Seal 

 Commensalism, see Protozoa, mode 

 of life 



