INDEX 



491 



SALIVARY glands, electromotive action, i. 



509, 510 



Salpa muscles, i. 20 

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



167 



Sarcoplasm, i. 0, 2S tl'., 68, 90 

 Scheinbare Oeffnungszuckung. Sec, Sup- 



]>osititious opening twitch 

 Schiff's trxtlti'soilic and kiix'xuiHc experi- 

 ments, ii. 80 

 Secondary contraction, i. 361, 413 ft'. ; effect 



of tension, 413 

 Secondary electrode points, effect on polar 



excitation, i. 255 

 Secondary electromotive action, in electrical 



organ, ii. 417 : in muscle, i. 442 ft'. ; 



in nerve, ii. 309 

 Secondary excitation from heart, i. 396, 



420,~4L>7 



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 Sehwann, 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 tt'. ; 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 ; 

 011 nerve, ii. 167 ft". 



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 gymuotus, ii. 376 



Spinal ganglia, rate of conductivity, ii. 66 ; 



trophic function, 91 

 pring rheonome (v. Kries), ii. 130 



Staircase contraction, i. 71, 121, li'.'i 

 Stentor, structure, i. 4 

 Stimulation-frequency, effect on contraction, 



i. 142 

 Strength of current, effect on height of 



twitch, i. 70 ; exciting elHcii-ncv, 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 ; eft'ect 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. 11. "> 

 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 ft'., 

 151 ; on muscle current, 339 ; on con- 

 ductivity of nerve, ii. 61 ; on current 

 of action, 260 ft'. ; on excitability, 

 76, 117 ; on lingual currents, i. 468 

 Tendinous intersections, i. 228 

 Tension, effect on muscle twitch, i. 76 ft". 

 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- 



Reymond, 316 ; Funke, 317 ; Pfliiger, 

 320 ; Heriug, 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 



