INDEX 



539 



Chemi-surface-tension theory of muscle- 

 action, 386 



Chemotaxis, 43, 441, 519 

 Chiasma, optic, 339 

 Childhood, 449 

 Chlorophyll, 256 

 Chocolate, 162 

 Choice, 411 

 Cholesterin, 253 

 Chorda* tendinae, 291 

 Chromatic aberration, 522 

 Chromatin, 23 

 Chromoproteids, 30 

 Chromosomes, 46 



number of, in different animals, 46 

 Chronograph, 471 

 Chyle, 255 

 Ciliary movement, 39, 468 



muscle, 341 

 Circulation, 277 

 causes of, 278 

 in childhood, 451 

 in the arteries, 298 

 in the capillaries, 304 

 in the cranial cavity, 62 

 in the heart-walls, 292 

 in the veins, 310 

 of bile salts, 253 

 rapidity of, 282 

 time, 283 

 Cleverness, 390 

 Climacteric, 435 

 Clot, blood, 261 

 Coagulation, blood, 260 

 milk, 156, 193, 270 

 Cochlea, 347 



distribution of nerves in, 348 

 uses of different parts of, 348 

 Cocoa, 162 

 Coffee, 161 

 Cognition, 414, 420 

 Coitus, 369, 437 

 Cold, 231 



and heat, relation of, to contraction, 



495 



sense, 364 



spots, 365 



Collaterals, 61 



Collection by the cord, 82, 89 

 Colon, 209 

 Coloration, 324 

 Color-blindness, 345 

 perception, 344 

 Colostrum, 156, 447 

 Columns of the cord, 80 

 Combustion-equivalents, 143 

 Compensatory pause of heart, 504 

 Complemental air, 128 

 Compounds constant in protoplasm, 26 

 Compression of arteries, 281 



of lymphatics, 308 

 Conation, 410, 420 

 Concave lenses, 525 

 Conception, mental, 416 

 sexual, 439 



Concepts, 416 



varieties of, 417 

 Condiments, 135 



Conduction in the spinal cord, 80 

 Conductivity, 42 

 Cone-cells, 337 

 Cones, 337 



Conference-topics, 530 

 Connective tissue, pigmented, 324 

 Consciousness, 43, 399 



aspects of, 403 



characteristics of, 401 

 Constituents of animal body, 30 

 Contact, sense of, 351 

 Continuity of consciousness, 402, 



423 



Contractile system, 374 

 Contraction, law of, 498 

 Contraction-wave of muscle, 497, 



499 



Convex lenses, 524 

 Convolutions, cerebral, 66 

 Contrast-effects, 360 

 Cookery, 149 

 Coordination, 53, 86 



of ciliary motion, 469 

 Copulation, 437 



Cord, spinal, 79. See Spinal cord. 

 Cords, vocal, 395 

 Cornea, 338 

 Corpora quadrigemina, 74 



striata, 74 

 Corpus albicans, 434 



"internal secretion" of, 433 



luteum, 433 



vera, 434 



Correction of astigmatism, 528 

 hyperopia, 528 

 myopia, 526 

 Corresponding points in the retina, 



339 



Cortex cerebri, 68 

 cells in, 68 

 psychomotor (?), 70 

 Corti, organ of, 348 

 Coughing, 125 

 Cowper, glands of, 439 

 Cranial nerves, 88 



system of the autonomies, 97 

 Cream, 156 



Creatin and creatinin, 241, 383 

 Creation, 17 

 Cretinism, 227 

 Crura cerebri, 64 

 Crystalline lens, 338 

 Current of rest and current of action, 491, 



192 

 Cuticle, 312 



Cyanic-evolutionary theory of life's ori- 

 gin, 18 



Cyanogen, 19 



"Cycle" of heart-events, 288 

 Cyclops, 465 

 Cylindrical lenses, 525 

 Cytoplasm, 23, 30 



