CLASSIFIED LIST OF EXPERIMENTS 741 



194. Reversed retinal response and after-effect in Ophiocephalus . . 430 



195. Three parallel types of direct and after-effect of light in plant and 



animal 427, 428, 430 



196. Multiple response in frog's retina ....... 426 



197. Multiple response in retina of Wallago 433 



198. Multiple response in human retina ....... 430 



199. Pulsating response in human retina under continuous light . . 432 



200. Binocular alternation of vision . . . . . . . . 43 1 



201. Analysis of composite image by after-effect ..... 432 



GEO-ELECTRIC RESPONSE 



202. Response to unilateral pressure of particles . .... 437 



203. Determination of excited area under geotropic stimulus . . . 436 



204. Geo-electric response ......... 440 



205. Geo-electric response of an organ physically restrained . . . 442 



VELOCITY OF TRANSMISSION 



206. Determination of velocity of transmission by mechanical response . 447 



207. Determination of centripetal versus centrifugal velocity . . . 448 



208. Effect of fatigue on velocity of transmission ..... 449 



209. Effect of intensity of stimulus on velocity . . . . . 449 



210. Effect of temperature on velocity ....... 450 



211. Determination of velocity of transmission by electromotive method . 452 



212. Longitudinal versus transverse conduction . .... 454 



ELECTRIC RESPONSE OF NERVE TO THERMAL STIMULUS 



213. Electrical response of frog's nerve to equi-alternating shocks . . 457 



214. Normal response of animal nerve to thermal stimulation . . 460 



215. Enhancement of normal response after thermal tetanisation . . 462 



216. Abnormal positive converted to normal negative after thermal 



tetanisation ........... 463 



217. Gradual transition from abnormal positive to normal negative 



through diphasic ......... 465 



218. Conversion of abnormal positive to normal negative through diphasic 



by increasing intensity of stimulus . . . . . . 466 



ELECTRIC RESPONSE OF PLANT NERVE 



219. Effect of ether on electric response of plant nerve .... 472 



220. Effect of carbonic acid . . . 47 2 



221. Effect of alcohol 473 



222. Effect of ammonia ......' 474 



223. Effect of ammonia on response of indifferent tissue .... 474 



224. Three parallel types of response in plant and animal nerve . . 475 



225. Effect of tetanisation on enhancement of normal negative response . 475 



