INDEX 



487 



and extensors, ii. 96, 105 ; effect of 

 chemical substances, i. 104 ; of circula- 

 tion, 195 ; of desiccation, 429 ; of 

 fatigue, 83 ff. ; of galvanic current, 

 276 ff. ; of glycerin, 432 ; of tempera- 

 ture, 97 ; of transverse section, 227 

 Excitability of nerve, ii. 59 ff. ; effect of 

 abstraction of water, 117, 165 ; of 

 current, see Electrotonus ; of tempera- 

 ture, 117 ; local differences, 93 ; at 

 transverse section, 94 



specific, of muscle and nerve (Rosenthal), 



ii. 92 



of spinal cord (direct), ii. 79 ; sensory 



and motor elements, 81 

 Excitation, of electrical organ, ii. 423 ff. 



of eye, ii. 470 



of muscle, chemical, i. 104 ff. ; electrical, 



174' ff. ; "general law," 191; by 

 intrinsic current, 326 ; polar, 203 ff. 



of nerve, chemical, ii. 165 ff., 253; 



electrical, 116 ff. ; " general law," 116 ; 

 by intrinsic current, 232 ; mechani- 

 cal, 253 ; polar, 266 ; with summated 

 stimuli, 106 ff., 215 ff. ; thermal, 251 ; 

 unipolar, 219 ff. ; theory, 315 ff. 



of afferent nerves, ii. 120 ; of secretory 



nerves, 121 

 See Constant current 



secondary, from heart, i. 396, 420, 427 ; 



muscle to muscle, 427 ; muscle to 

 nerve, 361, 396, 413 ; nerve to 

 nerve, ii. 264 



Excitatory wave in muscle, i. 373 ; relation 

 to contraction wave, 376 



FALL rheotome, i. 353, 385 

 Fatigue, in electrical organ, ii. 413 



in muscle, i. 66, 83 ff. ; chemical, 354 ; 



local, from passage of current in one 

 direction, 223 ; from tetanus, as com- 

 pared with fatigue from polarisation, 

 224 ; of kathodic fibre-points, 287 



in nerve, ii. 109 ; Bernstein's experiment, 



111 



Fibrillated structure, i. 3 



Fibrils, i. 3, 144, 160 



Fixed polarisation, ii. 303 



Fixed wave of contraction, i. 384 



Flagellata, electrical excitation, i. 307 



Flexor (and extensor) muscles, fatigue, i. 

 66 ; specific excitability, ii. 96, 105 



Form of current oscillation, i. 194 ; in- 

 fluence on nerve-excitation, ii. 128 ff. 



Freezing of muscle, i. 103, 218 



Frog alarum, ii. 411 



Frog interrupter, ii. 434 



Frog's skin, electromotive action, i. 462 ff. 



GALVANIC current. See Constant current 

 Galvanic wave, i. 273 

 Galvanotropism in protozoa, i. 307 



Ganglion-cells, conductivity' of excitation, 

 ii. 66 ; effect of anaesthetics, 75 ; of 

 composition of the blood, 77 ; of 

 strychnin, 71 ; of summated stimuli, 

 108 ; of temperature, 76 



electrical, of gymnotus, ii. 375 ; of malap- 



terurus, 407 

 Gastrocnemius, electromotive action, i. 325 ; 



schematic structure (Rosenthal), 324 ; 



telephone observations, 411 ; triphasic 



wave, 387 



Gerlach's theory of nerve-endings, i. 383 

 Glands, electromotive action, i. 461 ff. 

 Glycerin, action on muscle, i. 432 ; on nerve 



(Kaiser), ii. 218 



Goblet cells, electromotive action, i. 474 

 Gradual entrance of current, i. 192 ; ii. 65, 



120 



Griinhagen's C0 2 experiment, ii. 65, 84 

 Gymnotus, ii. 368 ff. 



HEAT, effect on nervous excitability, ii. 95, 

 117 ; thermal injury of muscle, i. 218 



Heart, innervation, i. 432 ; ii. 103 ; nutri- 

 tive fluids, i. 96 ; secondary contraction 

 from, 396, 420, 427 ; "staircase con- 

 traction," 70 



snail's, i. 79. See under Cardiac muscle 

 Helmholtz's consonating springs, i. 135 

 Hippocampus float-muscles, structure, i. 30 

 Holothurian muscles, electrical excitation, 



i. 234 

 Homology between electrical organs and 



striated muscle, ii. 346, 385,^ 431 

 Hydra, nervo-muscular cells, i. 9 

 Hydrophilus muscle, i. 63 ; tetanus, 125 



IDIO-MUSCULAR contraction, i. 152, 172, 

 205, 225 ; electromotive reaction, 390 



Immunity of torpedo to its own shock, ii. 

 416, 440 ff. ; to curare, 429 



Inclination current (du Bois-Reymond), \X 

 i. 325, 386 



Increment, law of polarisation (Hermann), V\j 

 ii. 315 



Indifferent point, ii. 143, 157 



Induced currents, action on ganglion-cells, 

 ii. 106 ; on muscle (cardiac, smooth, 

 striated), i. 119, 177, 181, 218; ii. 



122 ; kathodic action, i. 225 ; in 

 pathological cases, 181 



on nerve, ii. 121, 123 ff., 142, 207; 



polar action, 1 42 



on plants, i. 177 



on protozoa, i. 177 ; ii. 122, 299, 305 

 Induction, effect on unipolar excitation, ii. 



219 



inequality of make and break shock, ii. 



123 ff. 



Infusoria, myoid layer, i. 5 

 Inhibition, anodic in muscle, i. 243 



cardiac, ii. 257 



