INDEX 



417 



Cercaria flabelliformis, 183 



Cerebellum, 120, 163; function of, 163 



Cerebrum, 120, 141; functions of cortex, 

 162, 163 



Cerianthidea, classified, 269 



Cervical region of vertebral column, 136 



Cestoda, 100, 101; classified, 269, 272 



Cestodes, 184, 186 



Cetacea, classified, 271 



Chffitognatha, classified, 270, 274 



Chsetopoda, classified, 269, 273 



Chcetura pelagica (see Chimney swift) 



Chain coral, 311 



Chambers of heart, 123-125; relation to 

 course of circulation, 123-125 



Changes, climatic, 316; continental, 316, 

 317; of environment, 316, 317 



Chapelle-aux-Saints specimen of Nean- 

 derthal man, 337 



Chara, 61 



Charadriiformes, classified, 271 



Chat, yellow-breasted, range of, 292 



Checker-board, illustrating inheritance 

 in F2, 249-250 



Chemical elements in plants, 48 



Chemistry of protoplasm, 38 



Chemotropism, 285 



Chernetidia, classified, 270 



Cherry eye color in Drosophila, 344, 361 



Chilopoda, classified, 270 



Chimney swift, birth stage in, 203 



Chiroptera, classified, 271 



Chitin, 32 



Chlamydomonas, 85, 87, 88 



Chloroform, 187 



Chloragogen, 117 



Chlorophyll, 49 



Chloroplasts, 49, 82 



Choanoflagellata, classified, 268 



Cholesterin, 40 



Choline, 40 



Chondrostei, classified, 270 



Chordata, 169; classified, 270, 273 



Chordates (see Chordata) 



Chromatic aberration, 15 



Chromatic figure, 73, 74, 77 



Chromatin, 32, 37, 68, 69, 71, 75, 175 



Chromomeres, 37, 38, 73, 74, 79 



Chromosomes, 74, 175; homologous, 240; 

 individuality of, 79; locus of genes, 

 241; maternal, 210, 211; movement 

 of, 73; in mutation, 355; number of, 

 79; paternal, 210, 211; shape of, 78 

 27 



Chrysanthemum aphid, 181 



Chyme, 145, 154 



Ciconiiformes, classified, 271 



Cilia, 30, 60 



Ciliary movement, 60, 62, 63 



Ciliata, 177; classified, 268 



Ciliated epithelium, 63, 110; columnar, 

 109 



Cilium, 62, 63, 64 



Circular muscle, 133 



Circulation, 12; control of, 163; course of, 

 123-125; pulmonary, 124; systemic, 

 124, 125 



Circulator^' system, 114, 123; in dog- 

 fish, figure of, 124; early appear- 

 ance of, 123; of earthworm, 119; es- 

 sentials of, 123; relation to respira- 

 tory system, 120 



Cirripedia, 350; classified, 270 



Cirrus, 130 



Cladocera, classified, 270 



Clams, 173; classified, 273; migration of, 

 303 



Class, defined, 262, 263, 264 



Classification, l-i«16j 2£^basis of, 265; 

 definition of major groups, 268; tabu- 

 lar view of, 268; temporary systems 

 of 262. (See also Taxonomy.) 



Cla^-icle, 137, 138 



Cleavage, 211, 217; in centrolecithal eggs, 

 220; equatorial, 217, 218; in homo- 

 lecithal eggs, 217, 218; meridional, 

 217, 218; in telolecithal eggs, 219 



Climatic changes, 316 



Clitellum, 184, 185 



Cloaca, 118, 120, 127, 130 



Cloacal chamber, 102 



Close skein, 71 



Close spireme, 71 



Club wing in Drosophila, 345 



Coccida}, 181 



Coccidians, 172; occurrence of, 172 



Coccidiidea, classified, 268 



Coccidium schubergi, 81, 172, 173, 176 , 



Cocoon, 185; formation in earthworm, 

 185 



Codosiga, 85, 86 



Codosiga cymosa, 86 



Coelenterata, 64, 96, 106, 115, 186; bud- 

 ding in, 168; classified, 269, 272; 

 nervous system in, 139 



Ccfilenterates, classified, 272; digestive 

 apparatus in, 115 



