INDEX. 



1029 



Coats of the ureters, 327 

 Cochlea, anatomy of the, general, 819 

 membranous, 817, 819, 821 

 osseous structure of, 816 

 Coffee, physiological effect of, 297 

 Cold and warm points, cutaneous, 841 

 application of, to the body, reactions produced 



by, 603 



effect of, on muscle-protoplasm, 147 

 on muscular contraction, 127 

 on the development of rigor, 145 

 Collagen, 288, 1020 

 Colloid, 1019 



of the thyroids, formation of, 207 

 Color contrast, retinal, 792 

 sensation, 778, 779 

 theory of, Bering's, 782 

 Mrs. Franklin's, 783 

 Young-Helmholtz, 781, 782 

 vision, cerebral centre for, 785 

 Color-blindness, 784 



practical importance of determining, 785 

 test for, Holmgren method, 785 

 Color-mixture, spectral, 779 

 Color-reactions of proteids, 1016 

 Color-sensations, 778, 779 

 Color-theories, 781 

 Colorimetry, 584 



Colors, binocular, combination of, 803 

 "complementary," defined, 780 

 luminosity of different, 786 

 mixture of, physiological, 780, 781 

 Colostrum, 204 



corpuscles, origin of, 203 

 " Combustion equivalent," 303 

 Commutator, mercury, Pohl, 51 

 Conceptions, multiple, 920 



periods of the largest number of, 899, n. 

 Concha, the, 807 

 Concord, musical, perfect, 831 

 Condiments and flavors, influence of, on diges- 

 tion, 298 

 Conduction, influences which alter the rate and 



strength of the process, 92-96 

 of muscles and nerves in both directions, 86 

 influences which alter the rate and 



strength of the process, 92 

 isolated, 83 



nature of the process, 97 

 protoplasmic continuity essential to, 82 

 rate of, 88 



Conductivity, 21, 35, 81-98 

 Consciousness, 28, 29 

 existence of, in animal life, 29 

 phenomena of the central nervous system in- 

 volving, 606 

 Consonants, classification of, 876, 877 



phonation of, 876, 877 

 Continuity /protoplasmic, of muscles and nerves, 



82 

 Contractility, 20, 32, 98-134 



power of, in simple living organisms, 34, 35 

 Contraction, anodic, 50, 63, 68, 69 

 cardiac, 441-450 

 idiomuscular, 42, 93 

 isometric, 108 

 isotonic, 108 

 kathodic, 50, 63, 68, 69 

 law of, Pfliiger's, 60 



muscular, alterations in the form of the myo- 

 gram, from mechanical conditions, 

 108 



amount of irritation process developed, esti- 

 mated from the amount of the, 63 

 as effected by heat, 66 

 duration of, differences in, 106 

 effect of cold on, 127 



Contraction, muscular, effect of drugs and chem- 

 icals on, 128 



of temperature on, 127, 128 

 of veratria on, 128 

 of body- weight on the form of the myo- 



gram, 108 



influences affecting the activity and charac- 

 ter of the, 106 



latent period of, 101, 113, 114 

 law of, 53, 60 



liberation of energy by, 129-132 

 method of recording, 49 

 myogram of, simple, 101 

 nature of, in rigor, 146 

 normal and rigor mortis, differences in 



forms of, 146 



of rigor, changes resulting from, 148 

 of the bladder, mechanism of, 329 



spinal centre of reflex, 330 

 of the intestines, 309 

 of the oesophagus, 312-314 

 of the stomach during digestion, 316, 317 

 of the ureters, 309, 327 

 of the viscera, mode of, 310 

 rate of, in different muscles, 107 

 theories of chemical changes and alterations 



of form in, 104 



of muscle-tissue, variation in rate of, 308 

 of striped muscle, rapidity of, 308 

 spasmodic, of the abdominal muscles, the prin- 

 cipal factor in vomiting, 325 

 ventricular, force of the, 399 

 vermicular, defined, 310 

 "Contraction-ring," 917 



Contraction- wave, " antiperistaltic," of the stom- 

 ach, 317 

 cardiac, 443 



peristaltic, intestinal, 321 

 Contractions, fibrillary, cardiac, from closure of 



coronary arteries, 473, 475 

 from closure of coronary veins, 476 

 recovery from, 475 

 muscular, 98-134, 737 

 effect of fatigue on, 111, 112, 126 



of increase of strength of electric cur- 

 rent, 54, 55 



of making and breaking the direct elec- 

 tric current, 50 



of support on the height of, 119, 120 

 of tension on the activity of, 131, 132 

 of the strength of electric irritation on, 



53, 54 

 fatigue from, 77 



of voluntary, 126 

 functions of, 32, 33 

 post-mortem, 144-147 

 recording of, method, 98, 99 

 separate, effect of excitation upon the form 



of, 113, 114 



simple, studied by the graphic method, 98 

 "staircase," 72, 110 



starting-points of excitation in the irrita- 

 tion process of making and breaking 

 electric currents, 50-53 

 of the bladder, influence of the force of, upon 



the urinary stream, 328 

 of the spleen, 272 

 physiological, normal, 124 

 rhythms of, daily, 738 

 uterine, 917-920 



duration and nature of, 918-920 

 ventricular, 369 



" Contracture " (muscle), 115, 116 

 Contrast, auditory, 831, 832 



color, retinal, 792 

 Copulation, 902 

 act of ejaculation in, 902, 903 



