xl COMPARATIVE ELECTRO-PHYSIOLOGY 



FIG - PAGE 



308. The Cork Chamber for Gradual Raising of the Temperature of one 



Arm of the Balance ... ". : . -."... ; . . . 500 



309. Photographic Record Showing Effect of Rising Temperature on 



Conductivity ,'. . . . . . , . . . .- ,v -.=. " '. ". 501 



310. Experimental Arrangement for Studying After-effect of Stimulus on 



Conductivity and Excitability :.:\ . ;; . -. . i . 504 



311. Photographic Record Showing Effect, of Moderate Stimulation in 



Enhancing Conductivity and Excitability . : -'' ,..-. . 504 



312. Photographic Record showing Effect of Excessive Stimulation in De- 



pressing Excitability and Conductivity . . . ." ^ ..'-'; . . 505 



313. Record of Contractile Response in Frog's Nerve under Continuous 



Electric Tetanisation . . . . . . ..-.-.. 510 



314. Optical Kunchangraph for Mechanical Response of Nerve . . . 511 



315. Diagrammatic Representation of Arrangement for Obtaining Trans- 



mitted Effect of Stimulus . . . . . . . .512 



316. Photographic Record of Effect of Ammonia on Mechanical Response 



of Frog's Nerve . . .' , 516 



317. Photographic Record showing Abolition of Mechanical Response of 



Frog's Nerve by Action of Solution of Morphia . . . .516 



318. Photographic Record showing Preliminary Exaltation in Mechanical 



Response of Frog's Nerve after Application of Alcohol . . . 517 



319. Photographic Record showing Effect of Chloroform on Mechanical 



Response of Frog's Nerve . . . . . . * . 518 



320. Photographic Record showing Abnormal Positive converted into 



Negative Response after Tetanisation . . . . . . 521 



321. Photographic Records showing Gradual Disappearance of Positive 



Element in diphasic Mechanical Responses of Frog's Nerve 



and Plant-nerve . . , . . . . . . 522 



322. Photographic Record showing Staircase Effect in Mechanical Re- 



sponse of P'rog's Nerve ......... 524 



323. Photographic Reproduction of Record of Mechanical Responses of 



Frog's Nerve and Plant-nerve obtained on Smoked Glass Surface 



of Oscillating Recorder .-.-... . . . . 528 



324. Record of Mechanical Responses to Electrical Stimulus obtained on 



Smoked Glass, and given by the Optic Nerve of Fish Ophiocephalus 529 



325. Record, obtained on Smoked Glass, of Transmitted Effect of Stimu- 



lation on Nerve of Gecko ........ 530 



326. Initiation of Multiple Response by Drying of Nerve . . . 539 



327. Diagrammatic Representation of Experimental Arrangement for Re- 



cording Response by Resistivity Variation . . .. . . 544 



328. Photographic Record of the Morographic Curve taken by Method of 



Resistivity Variation in Pistil of Hibiscus. Critical point of in- 

 version at 60 -8 C '.='' 546 



329. Photographic Record of the Morographic Curve taken by Method of 



Electromotive Variation in Petiole of Musa. Critical point of 

 inversion at 59'6 C .:._. . : ... 1. 546 



330. Photographic Record of the Morographic Curve taken by Method of 



Mechanical Response in Filament of Passiflora. Critical point of 

 inversion at 59*6 C. . . . . . . . . 546 



