LIST OF ILLUSTRATIONS. 



xix 



FIG. 



226. 

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 228. 

 229. 

 230. 

 231. 



232. 

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234. 

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244. 

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254- 



257. 



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262, 



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267, 



269. 



270. 



271. 

 272. 



273. 



274. 



curve of the capillar) 



Bois-Reymond) 



Bernstein's differential rheotome . 



Progress of the wave of excitation, according to Bernstein 



Curves of electrical response to instantaneous stimulation (Matthias) 



Diagram representing the excitatory variation of muscle 



Burch's projecting electrometer 



Comparison curve for estimating the value of the curves of the capillary 



electrometer .... 



Diphasic and monophasic curves of the sartorius 

 To illustrate the point of equipotentiality in the 



electrometer .... 



To illustrate the excitatory variation of muscle 

 Electrical response to a series of stimulations (du 

 Method of leading-off from injured muscle 

 Tetanus curve of injured sartorius 



Responses to ten excitations of an uninjured gastrocnemius 

 Response to indirect excitation of a cooled muscle 

 Veratrine curve (sartorius) .... 



Strychnine curve of an uninjured gastrocnemius . 

 Method of showing polarisation of muscle 

 Effects on excitahility of the passage of a constant current 



muscle ....... 



Hering's double myograph .... 



Contractions of sartorius recorded by the double myograph 



maun) ....... 



Contractions of the two ends of the sartorius, as recorded by the doubl 



myograph (Biedermann) . 

 Diagram of Frank's apparatus for recording isometric curve of frog 



ventricle ....... 



Isometric and isotonic curves of the ventricle of the heart of 



(Frank) ....... 



Excitatory variations of cardiac muscle (Einthoven) 

 Einthoven's electro-cardiogram of man 

 Experiments showing transmission in both directions 

 Time relations of induced currents 



throng 



(Biedei 



Diagram of rheonome 



256. Influence of temperature on nerve excitability 



„ ,, neutral salts ,, „ . . 



„ vapours „ 



Curves showing polar changes in excitability of nerve 

 Influence of increased length of nerve on polar changes . 

 Tripolar arrangement of electrodes 

 263. Influence of poles on rate of transmission 

 Method of multipolar contacts .... 

 Influence of demarcation current on polar excitation 



„ ,, salt on polar excitability 

 268. Polar excitation of nerves of crayfish . 

 "Currents of rest" of nerve .... 



Facsimile curves of the photographed excursions of a capillary electro 



meter connected with the frog's sciatic nerve (Gotch and Burch) 

 Biphasic response of frog's sciatic nerve (Hermann) 

 Influence of intensity of stimulus on electrical response of nervt 



(Waller) . 



Effect of ether upon the electrical response of nerve (Waller) 

 ,, „ carbon dioxide on the negative variation (Waller) 



the fro 



485, 486, 



13. 



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