INDEX 



491 



SALIVAKY glands, electromotive action, i. 

 509, 510 



Salpa muscles, i. 20 



Salt, action on muscle, i. 104 ; on nerve, ii. 

 167 



Sarcoplasm, i. 9, 28 if., 68, 90 



Scheinbare Oeffnungszuckung. See Sup- 

 posititious opening twitch 



Schiff's cesthesodic and kinesodic experi- 

 ments, ii. 80 



Secondary contraction, i. 361, 413 if. ; effect 

 of tension, 413 



Secondary electrode points, effect on polar 

 excitation, i. 255 



Secondary electromotive action, in electrical 

 organ, ii. 447 ; in muscle, i. 442 ff. ; 

 in nerve, ii. 309 



Secondary excitation from heart, i. 396, 

 420, 427 



from muscle to muscle, i. 427 



from muscle to nerve, i. 361, 396, 413 ; 



ii. 346 ; during life, 426 ; in strychnia 

 spasm, 423 



from nerve to nerve, ii. 264 

 "Secondary polarisation," ii. 299 

 Secondary tetanus, i. 421, 424 ; ii. 265 

 Secretion currents, i. 463, 485, 513 



in man, i. 391, 513 



Secretory nerves, excitation by constant 



current, ii. 195 



Seedlings, electromotive action, ii. 5 

 Sensory nerves, excitation by constant 



current, ii. 195 



Sepia banding of muscle, i. 207, 232, 269 

 Sheath of Schwann, ii. 36 

 Short-circuiting, of muscle current, i. 195, 



327 ff. ; internal, of muscle current, 



332 



of nerve current, ii. 311 ; of action 



current in nerve, 337 



Single negative phase, time -relations, i. 

 371 ; ii. 260 



Skin current in frog, i. 462 ff. ; with in- 

 direct excitation, 493 



in man, i. 391, 513 



in warm-blooded animals, i. 513 

 Sluggish muscles, excitation, i. 177 

 Smooth muscle, polar reaction, i. 247, 256 ff. 

 Snail's heart, i. 79 



Sodium salts, action on muscle, i. 104, 221 ; 

 on nerve, ii. 167 ff. 



antagonism to potassium, i. 221, 354 

 Specific excitability of nerve and muscle, 



ii. 92 



Spinal cord, action of poisons, ii. 71 ; direct 

 excitability, 79 ; electromotive re- 

 action, 228, 254 ; reaction, 110 ; 

 structure of conducting paths, 87 



of gymnotus, ii. 376 



Spinal ganglia, rate of conductivity, ii. 66 ; 



trophic function, 91 

 pring rheonome (v. Kries), ii. 130 



Staircase contraction, i. 71, 121, 123 

 Stentor, structure, i. 4 

 Stimulation-frequency, effect on contraction, 



i. 142 

 Strength of current, effect on height of 



twitch, i. 70 ; exciting efficiency, ii. 



178 ff. 



Striation of muscle, schema, i. 41 

 Stroboscopic method, for analysis of tetanus, 



i. 409 

 Strychnin, dissimilar action in different 



animals, ii. 74 ; effect on central 



conductivity, 71 ; tetanus, i. 143, ii. 



423 



action on electrical fishes, ii. 423 

 Summation of stimuli, i. 113 ft'., 189 

 Superposition of twitches, i. 115 

 Supported muscle, effect on twitch, i. 



121 ff. 



Supposititious opening twitch, in muscle, i. 

 329, 333 



in nerve, i. 184, 238, 311 

 Supramaximal twitches, ii. 213 

 Sympathetic system, ii. 37 



TASTE nerves, ii. 197 ; electrical, 197 

 Telephone as rheoscope, i. 410, 424 ; ii. 



411, 424 



Temperature, effect on muscle, i. 91, 97 ff., 

 151 ; on muscle current, 339 ; on con- 

 ductivity of nerve, ii. 61 ; on current 

 of action, 260 ff'. ; on excitability, 

 76, 117 ; on lingual currents, i. 468 

 Tendinous intersections, i. 228 

 Tension, effect on muscle twitch, i. 76 ff. 

 Tetanus, composition, i. 123 ff. ; galvanic 

 effects, 129 ; natural, 139 ; nature of, 

 113 ; paradoxical, 271 ; rhythmical, 

 131, 135 ; strychnin, 143 ; ii. 423 



cardiac, i. 129 



electrical, ii. 423, 425 



in functionally dissimilar muscles, i. 



125 



secondary, from muscle, i. 364 ; from 



nerve, ii. 265 

 Theory of conductivity, ii. 336 



of discharge, ii. 357 



of electrical excitation, ii. 315 ; du Bois- 



Keymond, 316 ; Funke, 317 ; Pfliiger, 

 320 ; Hering, 327 ; Bernstein, 333 

 Time-relations, of action current in muscle, 

 i. 377 ; of excitation in different kinds 

 of protoplasm, 191 ; of excitatory 

 process in motor end-organs, ii. 351 



in electrical organ, ii. 431 



in the eye, ii. 478 



Toad, excitability of nerve-muscle prepara- 

 tion, ii. 126 ; telephone sound in con- 

 traction, i. 424 



Tonus, in cardiac muscle, i. 102, 260 ; in 

 smooth muscle, 100 



