INDEX. 



1167 



Digestion, pancreatic, 359; salivary, 314; 

 infantine, 1146 



Digitalis, physiological action of, 542 



Dioptric mechanisms, 834; apparatus, 

 simple form of, 839; imperfections in, 

 870 



" Discrimination period," 821 



Distance, judgment of, 964 



Distension of lungs after birth, cause of, 

 427 



Diuretics, their mode of action, 542 



Diurnal curves of functions, 1156 



Division of labour, physiological, 6 



Dog, pancreas of, 341 ; submaxillary 

 gland of, 338; submaxillary nerve, 

 supply to, 334; succus entericus of, 

 363; nerves of alimentary canal, 384; 

 saliva of, 387 ; composition of haemo- 

 globin in blood of, 450; cortical motor 

 area in, 740 



Dropsy, character of lymph in, 401 



Drowning, 493 



Ductus venosus, foetal blood carried to 

 the heart by, 1132; arteriosus, fcetal 

 circulation through the, 1132; oblitera- 

 tion of, after birth, 1135 



Dudgeon's sphygmograph, 221 



Dura mater (of the eye), 839 



Dyspnoea, at high altitudes, 465 ; nature 

 of; 485, 486 ; cardiac, 509 ; its effect on 

 the kidney, 529; sweating caused by, 

 557 



Ear, structure, 980-986; embryonic his- 

 tory of, 980 ; otic vesicle, 980 ; general 

 relation of parts, 981; cochlea, 982, 

 983; general use of parts, 986; tym- 

 panum, conduction of sound through, 

 989; muscles of, 993; auditory ossicles, 

 986 ; Eustachian tube, 995 



of rabbit, vaso-motor control of cir- 

 culation in, 263 



Egg-albumin, coagulation of, 323; its 

 conversion into acid albumin, 324 



Elasticity, diminished, in exhausted mus- 

 cles, 130; of arteries, as affecting cir- 

 culation, 164; as affecting dicrotism, 

 234 ; of lungs, amount of pressure ex- 

 erted by, 427 



Electric stimuli described, 56; electric 

 changes during muscle contraction, 97 : 

 in a nerve impulse, 107 ; electric spark, 

 vision by illumination of, 881; electric 

 currents, their development by retinal 

 processes, 928 



Electrotonic currents, 114 



Electrotonus, features of, 112 



Embryo of mammal, undifferentiated 

 protoplasm in, 35 ; development of red 

 corpuscles in, 35; glycogen in muscles 

 of, 92, 573; growth of embryo of mam- 

 mal, 1120; respiration of, 1123; nutri- 



tion of, 1123-1135 ; supply of oxygen to 

 the, 1123; development of adipose tis- 

 sue in, 606 



Emetics, various, action of, 380 



Emission of semen, 1117; the striated 

 muscles concerned in, 1118; the ner- 

 vous centre for, 1118 



Emotions, as affecting respiration, 476; 

 respiratory mechanism a means of ex- 

 pressing, 511 ; their effect on secretion 

 of urine, 543 ; of saliva, 335 ; on splanch- 

 nic functions, 817 



Emulsion of fats, action of bile and pan- 

 creatic juice on, 358, 391, 417 



End-plates of nerves, probable action of 

 urari on, 55 



Endolymph of semicircular canals, in 

 relation to coordinate movements, 732 ; 

 secretion of, in otic vesicle, 981 



Energy, potential, of bodies, living and 

 dead, 1; set free by breaking down of 

 living substance, ib. ; of living body 

 expended in work, 2, 636; of dead 

 body shewn as heat, 3; renewed and 

 set free by different tissues, 6; energy 

 of the body, income of, 632; expendi- 

 ture of, 634 ; potential energy of vari- 

 ous diets, 632, 658 



Entoptic phenomena, 874 



Epididymis, action of in emission, 1117 



Epiglottis, the, 1073 ; cushion of the, 1075 



Epithelium, ciliated, 134 



cells, their action in absorption, 421 ; 



renal, secretion by the, 533 



Equilibrium, nitrogenous, 626; sense of, 

 729 



Erect posture, how preserved, 1102 



Erectile tissue, structure and action of, 

 1115 



Erection of penis, see Penis 



Eructation, composition of gases of, 390 



Erythrodextrin, 315 



Eserin, pupil-contraction caused by, 866 



Evaporation, temperature of body regu- 

 lated by, 555 



Eupncea, 485 



Eustachian valve in adult life, 182; in 

 fcetal life, 1132 



tube, 984, 996 



Excretin, a f fecal constituent, 397 



Excretion, tissues of, 8 



Exercise, effect of, on the muscles, 128- 

 130; on vascular mechanism, 304, 305; 

 on respiration, 508 ; on the secretion of 

 urea, 638; on the production of heat, 

 644 ; production of carbonic acid in- 

 creased by, 637 ; visual discrimination 

 increased by, 890; tactile perceptions 

 increased by, 1040 



Exhaustion of muscle and nerve tissue, 

 125, 129, 130; of muscles, 129; auditory 

 effects of, 1002 



