582 INDEX 



Food materials, composition of, 281. 



Flexors and extensors, relative excitability, 177. 



Frog board, 112. 



GALVANIC cells, electromotive force in, 34. 



Galvanic stimulation may cause periodic impulses, 144. 



Galvauotropism, 137. 



Gas chamber, 173. 



Gaskell's block, 535 ; clamp, 103. 



Goltz's experiment, 567. 



Gower's experiment, 376. 



Graphic method, 77. 



HEART, action current, 310, 312 ; apex, isolated, 531 ; atropine, 

 564 ; augmentor centre, 566 ; augmentor nerves, 555 ; auric- 

 ulo-ventricular interval, 561 ; Bernstein's experiment, 531 ; 

 calcium, 539; change in form, 529; chemical theory, 540; 

 compensatory pause, 533 ; constant stimulus, 532 ; contrac- 

 tion curve, 530 ; contraction wave, 534 ; excitation from auri- 

 cle to ventricle, 535; exposure, 112; extra contraction, 

 533 ; Gaskell's block, 535 ; graphic record, 530 ; impulse, 

 541 ; inhibited, 559 ; inhibitory centre, 564 ; inhibitory mech- 

 anism, 562 ; inorganic salts, 538 ; irregularities, 536 ; irritable 

 though inactive, 533 ; irritable though inhibited, 561 ; load, 

 537 ; maximal contraction, 530; rnonopolar stimulation, 111 ; 

 muscarine, 564; nerve-free, 170; nicotine, 563; outflow 

 period, 526; polar inhibition, 153; polar stimulation, 110; 

 potassium, 539; pump, 525; reflex augmentation, 568 ; re- 

 flex inhibition, 567; refractory period, 533 ; rhythmic con- 

 tractility, 532 ; sounds, 541 ; staircase contraction," 531 ; touus, 

 537 ; Stannius inhibition, 562 ; sympathetic, 556 ; tempera- 

 ture, 538; vagus, 559; valves, 511, 525, 550, 551, 552. 



Heat values, calculation, 285. 



HYPERMETROPIA, 431 ; angle of, 464 ; measurement, 495. 



IDIO-MUSCULAR contraction, 166. 



Image, concave mirror, 405, 409 ; convex mirror, 410 ; convex 

 lens, 419, 420 ; cornea, 443 ; dioptric, 456, 457 ; retinal, 437 ; 

 retinal, actual size, 465 ; retinal, apparent size, 464; smallest 

 perceptible, 466 ; virtual, concave mirror, 408 ; virtual, con- 

 cave lens, 419. 



Index of refraction, 412. 



Induction currents, 54 ; direction, 158 ; gap in resulting contrac- 

 tions, 161; magnetic, 56, 58; nerves, 69 ; stimulus, 66, 158; 

 unipolar, 71. 



Inductorium, 54 ; construction, 60 ; graduation, 83, 



