486 



ELECTRO-PHYSIOLOGY 



Electrical columns (prisms), ii. 360, 370 ; | 

 enumeration, 393 ff. 



Electrical current, action on electrical organ, 

 i. 425 ff. ; on muscle, i. 174 ff. ; on 

 nerve, ii. 116 ff. ; on protozoa, i. 299 

 resistance of muscle, i. 200 ; of nerve 

 ii. 304. See Constant current 



cause of electrolysis in living matter, i 



317 



Electrical fishes, discharge from, ii. 407 ff. 

 conduction by air (sparking), 417 

 direction, 416 ; discontinuous nature 

 424 ; distribution of potential, 414 

 duration, 434 ; electrolytic action 

 420 ; latent period, 432 ; partial 

 421 ; reproducible on models, 416 

 telephone observations, 413, 424 

 temperature effect of, 459 ; theory 

 of, 453, 461 ff. ; time-relations, 431 

 voluntary and reflex (strychnin), 423 



derivation theory, ii. 418 



electromotivity, ii. 443 ff. 



immunity to curare, ii. 429 



pseudo-electrical manifestations, ii. 420 

 Electrical organ, excitation, ii. 425 ; chemical 



(ammonia), i. 428 ; direct, 428 ; in- 

 direct, 423 ; mechanical, 425 



E.M.F., ii. 443 ; pre-existence of, 445 ; 



"resting" current, 443 



homology with striated muscle, ii. 379, 



385, 390, 431 



innervation, ii. 422 



irreciprocity of conduction, ii. 456 



pseudo-electrical, ii. 376 ff. 



reaction, ii. 465 



reflex discharges and tetanus (strychnin), 



ii. 423 



secondary action, ii. 431 



secondary electromotive action (polarisa- 



tion), ii. 447 ff. 



structure, ii. 357 fl'. 



tetanisation, ii. 426 



Electrical plates, ii. 361, 377 ; Schonlein's 



theory of "nerve- end ings," 430 

 Electro-cardiogram, i. 408 

 Electrodes, unpolarisable for muscle, i. 



174 ; for leading off discharge of 



electrical fishes, ii. 410 

 Electrolysis, i. 317 ; ii. 198, 326, 420 

 Electromotive action, in crayfish muscle, 



i. 410 



in electrical fishes, ii. 407 ff. 



in epithelial and gland cells, i. 461 ; 



theory of cell-currents, 462 



in the eye, ii. 470 ff. 



in lingual currents, i. 464 



in man, i. 391 



in mammalian heart, i. 404 



in mammalian sweat glands, i. 513 



in muscle, i. 320 ff. 



in nerve, ii. 227 ff. ; cooled, 247; 



molluscan, 243 ; moribund, i. 230 ; 



non-medullated, 281 ; non-medullated 

 olfactory of pike, 236, 243 ; sensory, 

 235 ; with chemical and thermal exci- 

 tation, 252 

 Electromotive action in plant cells, ii. 1 ff. 



in polarisable schemata, ii. 298 



secondary, in electrical organ, ii. 447 ; in 



muscle, i. 442 ff. ; in nerve, ii. 309 ff. 



skin currents, i. 478 ff. 



strychnin spasm, i. 410 



in sub-maxillary glands, i. 510 



in throat and cloaca, i. 473 



theory, ii. 315 



Electromotive cell-unit (Munk) or cell-com- 

 plex (Burdon-Sanderson) in plants, ii. 

 29 



Electrotonus, definition, ii. 144 ; dis- 

 similarity in muscle and nerve, 140 



anelectrotonusandkateletrotonus, defini- 



tion, ii. 144, 335 ; difference between, 

 268, 279 



in anaesthesia, i. 450 ; ii. 294 



importance of medullated sheath, 269 ii. 



in man, ii. 152 ft*. 



in muscle (polar alterations of excita- 



bility), i. 280 ; ii. 140 ff., 307, 308 



in nerve, ii. 140 ff. ; cooled and etherised 



medullated nerve, 286 ; medullated, 

 266 ff. ; non-medullated, 281 



physical and physiological, ii. 250, 294 



in polarisable schemata, ii. 298 



reaction during excitation (current of 



action in electrotouised nerve), ii. 

 314 



secondary after-effects in muscle, i. 287 



291, 442 ff. ; in nerve, ii. 309 ff. 



secondary electrotonus, ii. 270 



time-relations, ii. 272, 279 



undulatory character, ii. 301 



theory, ii. 298, 315 



E.M.F., measurement of, i. 335 ; in electri- 

 cal organ, ii. 464 



End-brush (Wagner), ii. 361 



End-plates, i. 384 ; ii. 338 ff. ; electrical 

 (Schonlein's theory), 430 



Epithelial muscles, i. 10 ; muscle-cells, 10 



Ether, action on laryngeal muscles, ii. 98-; 

 on lingual current, i. 473 ; on muscle 

 current, 359 ; on nerve, ii. 61, 75, 

 294 ; on polarisation after- currents, i. 

 450 



Excitability and conductivity, ii. 64 ; and 

 contractility, i. 452 



Excitability, of central reflex organs (nerve- 

 cells), ii. 106 



of crayfish claw, ii. 98 



of electrical nerves, ii. 423 ff. 



of end-organs (peripheral and central), ii. 



105 



of the eye, ii. 470 



of muscle, i. 54 ff. ; different muscles, 57 



ff. ; dying muscle, 182, 343; in flexors 



