INDEX. 



1029 



Enzymes, adenase, 750, 851 



amylase, 796 



arginase, 849 



chemistry of, 751 



classification of, 746 



deaminizing, 748 



definition of, 746 



endoenzymes, 746 



enterokinase, 791, 799 



erepsin, 796, 800 



exoenzymes, 746 



general properties of, 748 



glycolytic, 750 



guanase, 750, 852 



historical account of, 741 



intracellular, 961 



inverting, 800 



lipase, 797 



nuclease, 750 



of muscle, 65 



oxidases, 748, 962 



pepsin, 778 



peroxidases, 962 



protective, 747 



ptyalin, 765 



rennin, 782 



reversible reactions of, 744 



specificity of, 745 



trypsin, 792 

 Epicritic sensations, 279 



sensibility, 278 

 Epigenesis, 990 

 Epinephrin, 879 



increased, effect on heart-beat, 600 



physiological action of, 876 

 Erection, physiology of, 991 

 Erepsin, 800 

 Ergograph, 47 

 Erythroblasts, 439 



Erythrocytes. See Red blood-cor- 

 puscles. 



Erythrodextrin, 766 

 Eserin, action of, on iris, 328 

 Ethereal sulphates, 855 

 Eupnea, 649 

 Eustachian tube, 391 

 Evolution, hypothesis of, in hereditv, 



994 



Exogenous fibers in spinal cord, 170 

 Exophthalmic goiter, 871, 872 

 Expiration. See also Respiration. 



definition of, 645 



expiratory center, 694 



muscles of, 648 

 Expired air, composition of, 665 



injurious effects of, 666 

 Extensibility of muscle, 20 

 Extensor thrust reflex, 158 

 Eye, abnormalities in refraction of, 

 319 



accommodation in, 313 



action of drugs upon, 328 



Eye, acuity of vision in, 343 

 after-images in, 352 

 as optical instrument, 306 

 binocular field of vision, 372 



perspective, 378 

 chromatic aberration in, 319 

 color blindness of, 354 



contrasts in, 353 



vision in, 349 



complementary colors, 351 

 corresponding points in, 372 

 dark adapted, 338, 346 

 diffusion circles in, 313 

 diplopia in, 370, 373 

 direct field of vision in, 342 

 entoptic phenomena in, 366 

 far point of distinct vision, 316 

 function of cones, 358 



of rods, 358 



fundamental color sensations, 351 

 horppter, 375 



indirect field of vision in, 342 

 inversion of image in, 311 

 light adapted, 338, 347 



reflex in, 326 

 movements of, 368 

 muscular insufficiency, 370 

 nature of visual stimuli, 338 

 near point of distinct vision, 316 

 nodal point of, 310 

 ophthalmoscopic examination of, 



331 

 optical defects of, 319 



delusions, 382 

 physics of formation of image in, 



309 



qualities of visual sensations, 349 

 reduced schematic (Listing), 310 

 refractive power of, 317 

 size of retinal images, 312 

 spherical aberration in, 319 

 stereoscopic vision, 378 

 struggle of visual fields, 375 

 suppression of visual images, 375 

 theories of color vision, 360 

 threshold stimulus of, 345 

 visual field of, 340 



judgments, 376 



purple of, 338 

 Eye-muscles, action of, 368 



FACIAL nerve, dilator fibers in, 616 



nucleus of, 249 



Far point of distinct vision, 316 

 Fat, absorption of, 803 

 as glycogen former, 826 

 digestion of, 797 



in stomach, 786 

 excessive formation of, in obesity, 



919 

 in bile, 818 



