INDEX 



721 



Combination tones, 501. 

 Combustion, 26, 27. 



as source of animal heat, 402. 

 heat of, 92. 



of foodstuffs, 92. 

 of faeces, 93. 

 of urine, 93. 

 Commissures between cerebral hemispheres, 



641 ; see also Corpus callosum. 

 Compensation in ataxia, 473. 



after extirpation of labyrinths, 478. 

 after lesions in cerebellum, 612. 

 Compensatory pause, 183, Fig. 65. 

 Complemental air, 320. 

 Complementary colors, 543. 

 Concomitant respiratory movements, 321. 

 Conducting pathways, from motor cortical 



areas, 647. 

 in spinal cord, afferent, 592, Fig. 265; 593, 



595, 596. 



efferent, 594, Fig. 266; 595. 

 methods of determining, 589. 

 to auditory area, 614. 

 to visual area, 656, Fig. 295; 657. 

 Conduction, isolation of, in nerves, 41 

 of excitation, 411. 

 radiation of heat and, 403. 

 Conductivity, a general property of protoplasm, 



62. 



in both directions in nerves, 410. 

 not same as excitability, 411. 

 resistance to, in nerves, 425, 426. 

 Conjugated proteids, 75. 



Conjugation of male and female elements, 691. 

 Consciousness, simplest state of, 451, note. 

 Conservation of energy, 2, 93. 

 Consonant intervals, 490. 

 Consonants, 507. 

 Constant current, 60. 



alterations of excitability produced by, 424. 

 stimulating effects of, 423. 

 Constituents, chemical, of the body, 68. 

 inorganic, of animals, 25. 



of plants, 24. 

 Contractile cells embracing capillaries, 220, 



Fig. 89. 



Contractile vacuoles, 22. 

 Contraction, auxotonic, 435. 

 clonic, 633, 642. 

 isometric, 414; 438, Fig. 176. 

 isotonic, 415, 435; 436, Fig. 173; 438, Fig. 



176; 442, Fig. 178. 

 musical tone of, 434. 

 opening and closing, 420, 423. 

 of pseudopodia, 43. 

 Pfliiger's law of, 423. 

 secondary, 433. 



simple, of cross-striated muscle, 415, Fig. 

 154. 



Contraction, simple, of smooth muscle, 448. 



simple projectile, 436, Fig. 173. 



summated, of cross-striated muscle, 415, 



429. 

 of smooth muscle, 448. 



tetanic, 429, Fig. 166; 430, Fig. 167. 



veratrin, 437, Fig. 175. 



voluntary, 430. 



tonic, of vascular wall, 238. 



of smooth muscle, 448. 

 Contractions, fibrillary, of heart, 181. 

 Contracture after destruction of motor cortex, 

 646. 



after destruction of cerebellum, 606. 

 Contrast, simultaneous, in vision, 547. 



explanation of, 548, 549. 

 Convergence of the eyes, 534, 556. 



accommodation and, 534, 557. 



assymmetrical, 552. 



center of, 535, Fig. 230; 616. 

 Convolutions of cerebrum, see under individual 



names. 



Cooking, importance of, 110, 242. 

 Coordination of movements, 473. 



determination of, reflexly, 587. 



in acerebral rigidity, 617. 



loss of, by destruction of internal ear, 478. 

 by lesions of cerebellum, 607, 608. 

 by loss of motor sensations, 472. 

 Copper ferrocyanide as semipermeable mem- 

 brane, 31. 



Copulation, 691, 693. 

 Cornea, form of, 522. 



radius of curvature of, 510, 512. 



refractive index of, 509. 



refractive power of, 513. 

 Corona radiata, 647. 

 Coronary arteries, 180. 

 Coronary veins, 181. 



Corpora geniculata, 600, 614, 617, 655, 657 

 Corpora quadrigemina, 600, 613. 



frontal section of, 615, Fig. 272. 



relation of, to auditory impressions, 614. 



to eye movements, 613. 

 Corpora striata, 600. 



as heat center, 408. 

 Corpus callosum, 641. 



section of, 641, 660. 



stimulation of, 641. 



Corpus geniculatum external, 617, 657. 

 Corpus geniculatum internal, 614, 655. 

 Corpus luteum, 696. 

 Corpuscles, red, 148; see also Blood corpuscles. 



white, 153; see also Leucocytes: 

 Correspondence of the retinae, 555. 

 Corti, organ of, 499, 500, Fig. 199. 



pillars of, 499, 500, Fig. 199. 

 Cortical a^eas, see Motor and Sensory cortical 



