INDEX. 





Hermann on muscle currents, 101 



Hiccough, 511 



Hippuric acid, its presence in urine, 517; 

 how formed in the kidney, 539 



Hopping, how effected, 1105 



Horopter, the, 957 



Horse, sweat of, 551 



Humour, aqueous, 972; how furnished, 

 972 ; vitreous, 974 



Hunger and thirst, sensations of, 1048 



Hiirthle, membrane manometer of, 194- 

 196; tracings of ventricular and aortic 

 pressure by apparatus of, 203, 204, 208, 

 209, 233 ; differential manometer of, 

 205 ; tambour sphygmoscope of, 220 



Hydrochloric acid, free, in gastric juice, 

 322 



Hydrogen, evolution of, in small intes- 

 tine, 3!)5 



Hyperpnoea, 485 



Hypoxanthin, presence of, in urine, 517 



Illusions, visual, 961 ; tactile, 1069 



Images, retinal, formation of, 839-845; 

 in relation to sensations excited by, 

 845; entoptical, 876 



Impulses, nervous, 54, 106 ; electrical 

 changes accompanying, 107; cardiac, 

 209 ; mode of recording, 213 ; afferent 

 and efferent, 676; their paths along 

 the cord, 800, 801, 810; relays in course 

 of, 802, 810; crossing of, 804; sensory, 

 different paths for different, 805 ; trans- 

 mitted by grey matter and interuuncial 

 tracts, 808 ; ampullar, 732 ; motor, effect 

 of efferent impulses on the coordina- 

 tion of, 733, 955; visual, 781 K 834, 908 ; 

 auditory, how excited, 980, 983; audi- 

 tory, development of, 980, 986; voli- 

 tional, time required for transmission, 

 774 ; volitional, course of, in man along 

 the pyramidal tract, 775 



Impurities in expired air, 442 



Income and output of material in nutri- 

 tion, <;j 



Incus, the, 986 



Indol, a product of bacterial action, 361, 

 393 



Induction coil, construction of, 59 



Infancy, characteristics of, 1148 



Inflammation, phenomena of, 290; oedema 

 due to, 410 



Infusoria, ciliary motions in, 136 



Inhibition, cardiac, phenomena of, 245 

 et supra : fainting a result of, 253, 

 302; effect of atropin on, '_>">" 



of secretion of saliva, 335; of respi- 

 ration, 479; of reflex actions, 707; of 

 parturition, 1142 



Inhibitory nerves, 148; fibres in vagus 

 of frog, 248; in vagus of mammal, 

 200; cardiac iuhibitory fibres, contin- 



uous action of, 253 ; their analogy with 

 vaso-dilator fihn-s, 269 



Inspiration, mechanism of, 433; move- 

 ments of, 431; laboured, phenomena 

 of, 436 



Intercostal muscles, their work in respi 

 ration, 435 



Intermediate line, in muscle fibre, 85 



Intermittence, cardiac, 2(X), 301 



Interruptor, magnetic, 63 



Intestine, absorption of fats in the, 417; 

 absorption of diffusible substances and 

 water, 4'20 



, large, movements of, 381 ; changes 



of food in, 395; digestion of cellulose 

 in the, 396 



, small, movements of, 380; changes 



of food in the, 390, 391; fermentative 

 changes of food in the, 394 ; fluidity of 

 food maintained in the, 422 



" Intrinsic light " of retina, 904 



Iodine, coloration of starch by, 316 



Iris, development of the, 837 ; muscular 

 and vascular changes in the, 857 



Iron, its presence in haematin, 460; in 

 haemoglobin , 450; in bile, 355, 585; in 

 the spleen, 582 



Irradiation, 932 



Irritability, muscular and nervous, 53-80 ; 

 their mutual independence, 53, 54; 

 diminution and disappearance of, after 

 death, 80, 81 ; as affected by elect ro- 

 tonus, 112; circumstances determiniiiE;, 

 125; centrifugal loss of, in severed 

 nerve, 126; influence of temperature 

 on, 127 ; influence of blood-supply on, 

 128 ; influence of functional activity on, 

 il>. ; presence of oxygen a condition of, 

 130; prolonged, of heart, 242 



Irritants, inflammatory action of on 

 tissues, 291 



Islets, extra-vascular, 149 



Jaundice, how caused, 370, 587 

 Judgments of distance and size, how 



formed, 965; of solidity, 96ti 

 Juice, gastric, see Gastric juice 



, pancreatic, see Pancreatic juice 



, intestinal, see Succus eutericus 



Jumping, how effected, 1105 



Katabolic changes in living tissue, 39, 41 ; 



heat liberated by, 638 

 Katelectronus defined, 113 

 Kathode or negative electrode, 57 

 Key, galvanic, various forms of, 68 

 Kidney, the, duplexity of its mechanism, 

 524; vaso-motor mechanisms of, 525; 

 relations, various, of flow of blond 

 through, 528; vaso-constrictor nerves 

 of, 530; effect of chemical chan^> < in 

 the blood, 531 ; secretion by th renal 



