INDEX. 



431 



Emission of semen, the nervous centre 



for, iv. 373 

 Emotions, as affecting respiration, 58&, 



597 

 ,, respiratory mechanism a means 



of expressing, 630 



their effect on secretion of urine,677 

 ,, ,, ,, ,, of saliva, 398 



,, ,, on splanchnic functions, 



1114 



Emulsion of fats, action of bile and pan- 

 creatic juice on, 425, 474, 516 

 End-bulbs, structure of, iv. 268 

 End- plates of nerves, probable action of 



urari on, 58 



,, the two parts of, 119 



,, ,, their analogy with elec- 



tric organs of ani- 

 mals, 120, 155 



Endocardium, its structure, 197 

 Endolymph of semicircular canals, in re- 

 lation to coordinate move- 

 ments, 1011 

 ,, secretion of, in otic vesicle, 



iv. 177 



,, nature of, iv. 210 

 Energy, potential, of bodies living and 



dead, 1 

 , , of living body expended in work, 



2, 805 



,, of dead body shewn as heat, 3 

 ,, renewed and set free by different 



tissues, 6 

 ,, set free by breaking down of 



living substance, 1 

 ,, of muscle and nerve, 151 164 

 ,, of the body, income of, 801 

 ,, ,, ,, expenditure of, 803 

 ,, potential, of various diets, 801, 



833 



Entoptic phenomena, iv. 51 

 Ependyma, the, 953, 1021 

 Epidermis, structure of, 687 



,, prickle cells of, 688 

 Epididymis, iv. 365 



,, action of in emission, iv. 372 

 Epiglottis, the, iv. 308 



,, cushion of the, iv. 313 

 Epithelioid or endothelial cells of capil- 

 laries, 190, 191 

 Epithelium, ciliated, 162 



,, cells, their action in ab- 



sorption, 523 



,, renal, secretion by the, 665 



,, auditory, 176 



,, germinal, iv. 354 



Equilibrium, nitrogen eotis, 795 



,, sense of, 1012 



Erect posture, how preserved, iv. 347 

 Erectile tissue, structure and action of, 



iv. 370 



Erection of penis, see Penis. 

 Eructation, composition of gases of, 473 

 Erythrodextrin, 359 



Eserin, pupil-contraction caused by, iv. 



43 



Evaporation, temperature of body regu- 

 lated by, 699 

 Eupnrea, 598 

 Eustachian valve in adult life, 229 



,, ,, in foetal life, iv. 391 



Eustachian tube, iv. 183, 196 

 Excretin a faecal constituent, 480 

 Excretion, tissues of, 8 

 Exercise, effect of, on the muscles, 148 

 ,, ,, on vascular mechanism, 



349, 350 



,, ,, on respiration, 627 



,, ,, on the secretion of urea, 



805 

 ,, j, on the production of 



heat, 813 



,, production of carbonic acid in- 

 creased by, 806 

 ,, visual discrimination increased 



by, iv. 83 

 ,, tactile perceptions increased 



by, iv. 277 

 Exhaustion of muscle and nerve tissue, 



143 



,, of muscles, 149 



auditory effects of, iv. 228 



Expiration, how effected, 547 

 Extractives, various, of spleen pulp, 743 

 ,, of the supra-renal body, 766 



of the thymus, 768 



,, their value in diet, 800, 837 



Eye, the, nature of movements caused by 



stimulation of cortex, 1079 

 ,, general structure, iv. 2 

 ,, development of, iv. 5 

 ,, structure of the investments of, iv. 



2130 

 ,, changes in during accommodation, 



iv. 18 



,, sclerotic coat, iv. 21 

 ,, choroid coat, iv. 21 

 ,, suprachoroidal membrane, iv. 22 

 ,, ciliary processes, iv. 23 

 ,, iris, iv. 24 

 ,, cornea, iv. 25 

 ,, ciliary zone, iv. 26 

 ,, ,, muscle, iv. 26, 28 

 ,, lens, iv. 28 



,, ,, changes of curvature of, iv. 31 

 ,, suspensory ligament, ir. 29 

 ,, humour of, vitreous, iv. 4, 29, 170 

 ,, ,, aqueous, iv. 6, 168 

 ,, diagrammatic, iv. 10 

 ,, accommodation of, iv. 13 20 

 ,, for far and near ob- 



jects, iv. 13 



,, ,, changes during, iv. 17 



,, ,, mechanism of, iv. 31 



,, nervous, iv. 45 



,, ,, associated movements 



in, iv. 46 

 ,, imperfections of iv. 47. 



