742 COMPARATIVE ELECTRO-PHYSIOLOGY 



PAGE 



226. Abnormal diphasic converted into normal negative after tetanisation 476 



227. Conversion of abnormal positive to normal negative through inter- 



mediate diphasic under increasing intensity of stimulation . . 477 



CONDUCTIVITY BALANCE 



228. Effect of Na 2 CO 3 solution on responsivity of frog's nerve . . . 485 



229. Effect of CuSO 4 solution on responsivity of frog's nerve . . . 485 



230. Effect of CaCl 2 on responsivity of plant nerve . . . 486 



231. Effect of KC1 . . 486 



232. Comparative effects of NaCl and NaBr on responsivity . . . 487 



233. Effect of dilute solution of Na^CO 3 . . . . . . 488 



234. Effect of stronger solution of Na 2 CO 3 489 



235. Excitability versus conductivity under KI . . . . -491 



236. Excitability verstts conductivity under Nal '. .... 492 



237. Effect of alcohol on responsivity of frog's nerve . . . . 492 



238. Effect of alcohol on receptivity of plant nerve . . . . . 493 



239. Effect of alcohol on conductivity of nerve ..... 493 



240. Effect of alcohol on responsivity of nerve . . . . . . 494 



241. Receptivity verstts responsivity under alcohol .... 495 



242. Effect of cold on conductivity 499 



243. Effect of warmth on conductivity ....... 5 O1 



244. After-effect of moderate stimulation on conductivity and excitability 504 



245. After-effect of strong stimulation on conductivity and excitability . 505 



MECHANICAL RESPONSE OF ANIMAL NERVE 



246. Mechanical response of frog's nerve under electric tetanisation . . 509 



247. Effect of ammonia on mechanical response ..... $16 



248. Effect of morphia . 516 



249. Effect of aconite . . . . . . . . . $16 



250. Effect of alcohol 517 



251. Effect of chloroform 5 l8 



252. Conversion of abnormal positive to normal negative through diphasic, 



by tetanisation . . . . . . . . . . 521 



253. Occurrence of staircase effect ....... 524 



254. Comparison of mechanical responses in animal and plant nerve . . 528 



255. Mechanical response of optic (sensory) nerve . .... 529 



256. Fatigue of conductivity in nerve of gecko . . . . . 53 



257. Transient enhancement of contraction on cessation of tetanisation . 536 



258. Multiple mechanical response in nerve as effect of drying . . . 539 



MECHANICAL RESPONSE OF PLANT NERVE 



259. Enhancement of excitability after tetanisation 554 



260. Effect of light in enhancing excitability of plant nerve . . . 556 



261. Determination of velocity by mechanical response of plant nerve . 5 2 5 



