1074 



INDEX OF SUBJECTS. 



Habit, influence of, in establishing excito-mo- 

 tor actions, 647 ; on sensori-motor actions, 

 665, 763 ; on impressions on sleeping persons, 

 713; on amount of sleep required, 715 ; on 

 co-ordination of muscular movements, 829 



Hachisch, effects of, 718 



Hcemadroraometer, 340 



Hsemadynamometer, 336 



Hmatin crystals, 247 



Hrematochotneter, 340 



Hoemato-crystallin, 86 



Htemutoglobin crystals of blood, 244 



Haemin crystals of blood, 247 



Haitnoglobin, 86 



Haemorrhage, predisposition to, 278 



Hair, characters of, in different Races, 989 



Halones of vitellus, 924 



Hand of Man, peculiar attributes of. 41 



Harmony of Muscular movements. 830 



Haversian canals of Bone, 71 



Healing Processes, different forms of, 447 



Hearing, physical conditions of, 779 

 Organ of, its essential structure. 782; its adap- 

 tation to laws of propagation of sounds, 

 782; structure and functions of tympanic 

 apparatus, 786; of labyrinth, 783; of ex- 

 ternal ear and ineatus, 794; development 

 of, 963 



Sense of, 779 ; discrimination of pitch of 

 tones. 791 ; estimate of direction of sounds, 

 795 ; estimate of distance, 795 ; influence 

 of habitual attention on acuteness of, 79ti, 

 797 ; rapidity of perception by, compared 

 with vision. 797 ; use of, in regulating 

 voice, 671, 796 



Heart, general functions of, 292; comparison 

 of right with left ventricle, 294 ; valves of, 

 295 ; muscular fibres of, 295 ; nerves of, 29(i ; 

 arrangement of muscular fibres in, 294; 

 irritability of, 297; rhythmical movements 

 of, 298 ; movements of, 298 ; force exerted 

 by, 302 ; course of blood through, 303 ; 

 sounds of, 304 ; influence of nervous system 

 on, 306 ; excito-motor system of. 306 ; effects 

 of temperature on, 307 ; effect of various 

 puisons on, 3.07 ; effects of electrical cur- 

 rents on, 307 ; nerves, inhibitory, 309 ; ner- 

 vus depressor of, 313; nerves, accelerating, 

 314 ; action of poisons on, 315 ; quantity of 

 blood expelled by, 317; number of pulsa- 

 tions of, 319; peculiarity in contractions of, 

 818, 822; first development of, 935; subse- 

 quent changes in, 938 



Ilent, importance of, in growth and develop- 

 ment, 29, 30; influence of, on vital action, 

 528; on period of gestation. 980 ; endurance 

 of extremes of, 538 ; its production in Hu- 

 man body, 529 ; sources of variation of, 529- 

 534; alterations of in disease, 534; libera- 

 tion of, after death, 535 ; sources of, 539 ; 

 loss of, the cause of death by starvation and 

 exhausting diseases, 540 ; partial dependence 

 of, on cutaneous respiration, 541 ; absolute 

 amount of, produced in the body, 435, 542 ; 

 influence of nervous system on, 544; local 

 variations of, 545 ; inferior power of gener- 

 ating, at earliest and latest periods of life, 

 547 



Heat centre, location of, 547 



Heat tetanus. 820 



Height nt different ages, 968 



Hellehoriis niger and viridis, action of, on 

 heart, 316 



Hepatic Artery, 472 



Hepatic Cells, 474 



Hepatic Parenchyma, arrangement of, 474 



Hepatic Vein. 472. 479 ; blood of, compared 

 with portal, 264 



Hepatin, 484 ; see Glycosf.in/ 



Herbivorous animals, excretions of, 517 



Hereditary Transmission of maladies, 918 



Hermaphrodism, 950 



Heterologous growths, 464 



Hiccough, act of, 382 



Hindostan, languages and people of, 1085 



Hippuric Acid, 90; its presence in the Blood, 

 254; in Urine, 501 509 



Horopter, nature of, 763 



Hottentot Race, 1009 



Humus, absorption of, by plants, 31 



Hunger, indicates necessity for aliment, 120 ; 

 immediate source of sense of, 120 



Hybrid Races, question of fertility of. 998 



Hybrids, influence of parents on, 917 



Hydrocyanic Acid Gas, action of, on Heart, 

 316 iiute, 



Hydrocarbonaceous compounds. 94 



Hydrogen, antimonide, phosphide, and sul- 

 phide, action of, 402 



Hydrogen, respiration in, 398 



Hyoscyamine, action of, on heart, 317 note. 



Hypermetropia, 751 



Hypertrophy, 416, 442 ; conditions of, 441 ; 

 shown in production of tumors, 444 ; in su- 

 pernumerary parts, 444 



Hypnotism, 719 



Hypochondriasis, operation of, 879 



Hypogastric plexus of Sympathetic, 863 



Hypospadias, 950 



Hypoglossal Nerve, origin of, 610, 624 



Hypox.-mthin, 92 



Hysteria, exalted sensibility in, 664 



Hysterical Ischuria, 467 



Icelanders, freedom of, from tuberculosis. 

 1011; liability of, to zymotic diseases, 411, 

 412 



Idiocy, predominance of instinct in, 697, 698 ; 

 causes of, 918, 919 



Idio-muscular contraction, 819 



Illumination, relative perceptibility of. 779 



Inanition. 123; balance of vital economy in, 

 425; effects of, on temperature, 441 



India, population and languages of, 1002 



Indirect vision, 776 



Indo-European Race, 1002 



Infancy, characteristics of, 1011) 



Infants, temperature of. 530; inferior power of 

 generating heat in, 546 ; length and weight 

 of, at birth, 966, 1018 



In/tii in iiml ion, increase of fibrin of blood in, 

 265 ; a perverted form of nutritive process, 

 4 IS; adhesive, 449; modelling process in, 

 450 ; importance of exclusion of air during 

 repair accompanied by, 4o2 ; its relations to 

 hypertrophy and atrophy, 454; ca.uses of, 

 454 ; phenomena of, 454 ; state of blood in, 

 457 ; characteristic effusions of. 457 ; un- 

 healthy forms of, 463 



Inflammatory effusions, different characters of, 

 2SII, 457 



Infundibula of lungs, 364 



Ingesta, average chemical composition of, for 

 one day, 423 



Inhibitory influence of the nervous system on 



