INDEX 



533 



PAGE 



Centralization 497 



Centrosome 293, 295 



Cephalization 455 



Ceratium 106 



Ceratopogon 409 



Cercomonas 1 1 o 



Cerebellum 192, 200, 461 



Cerebral hemispheres .... 



192, 198, 200, 201, 487 



Cerebrum 459, 461 



Cervical vertebrae 225 



Change of function 253 



Chara 63 , 66, 113 



Characters in germ cells . . 311 



Charchesium 81 



Charms 505 



Chauliognathus scutellaris 1 9 



Chelipeds 231 



Chelone 26, 252, 253 



Che lone glabra 29 



Chemical elements 82 



Cheinical engine 89 



Chemical stimuli 444- 445 



Chickweed 143, 148 



Chicks 481 



Chironomus 409 



Chloragogue 175,178 



Chlorophyl, 58, 85,92,105, 175 



Chordata 223 



Chromosomes . . . .294, 295, 299 

 Chromosome reduction .. 301 



Chromatin 293 



CiHa 74. 438 



Circulation 202 



Circulatory apparatus ... 211 



Circulatory system 187 



Civilization 320 



CiviHzed life 325 



Cladophora 65 



Classification 221 



Clathrocystis 65 



Cleavage 193, 303 



Climatic and metereologi- 



cal conditions 284 



Clistogamous flowers .... 34 



Clitellum 164, 169 



Closed galls 40 



Closterium 57 



Cockroaches 7 



Coelom 164, 184 



PAGE 



Coleochete 340 



Coleoptera 24, 42, 44 



Colias ])r()todice . 24 



Collaterals 450 



Collecting 520 



Colony 81, 106 



Coloration 422 



Closteriuin 112 



Columella 126 



Columns 461 



Combination of organisms 353 



Commensalism 400 



Commensal nematodes ... 178 



Commissural fibres 462 



Common parenchyma ... 121 



Competition 275 



Compound microscope ... 514 



Concentrating apparatus . 521 



Conducting tissues 132 



Cone gall 45, 367, 524 



Conifers 149 



Conjugating reaction .... 441 



Conjugation 111,113 



Conocephalus 118 



Conklin quoted 319 



Contractile processes .... 161 



Contractility 435 



Control centers 508 



Control circuits 453 



Convergence 243 



Convulsions 453 



Cooking 491 



Co-operation 495 



Coordination 453, 502 



Coptotomus 417 



Copulation 168 



Copying pencil 411 



Coracoid bone 259 



Cord 461 



Corethra 409, 425 



Corn 6 



Corpuscles, white 173 



Correlation 459 



Correspondence between 



ontogeny and phylogeny 255 

 Cortex . .'147, 462, 463, 465, 487 



Correlation 265 



Costal grooves 182 



Cottonwood 38 



Countershading 424 



