CLASSIFIED LIST OF EXPERIMENTS 743 



RESPONSE OF LIVING TISSUE BY RESISTIVITY VARIATION 



I'AGE 



262. Determination of death-point by inversion of curve of resistivity . 546 



263. Excitatory response by resistivity variation . . . . 548 



264. Action of anaesthetics on response by resistivity variation in frog's 



nerve 549 



ELECTROTONUS 



265. Extra-polar effects in plant nerve . . . . . . . 561 



266. Variation of conductivity in plant nerve by passage of current . 566 



267. Conduction of excitation with the current ..... 567 



268. Conduction of excitation against the current ..... 568 



269. Modification of excitability by anode . . . . . . 569 



270. Modification of excitability by kathode ...... 570 



271. Variation of excitability and conductivity with polarising electrodes 



in shunt ........... 572 



272. Variation of excitability and conductivity with polarising electrodes 



in series 574 



INADEQUACY OF PFLUGER'S LAW 



273. Normal effects of anode and kathode on plant ..... 579 



274. Reversal of normal effect under high E.M.F. .... 579 



275. Demonstration by subjective response of opposite effects induced by 



moderate and feeble E. M. F. . . . . . . . 582 



MOLECULAR THEORY OF EXCITATION 

 Mechanical Response : 



276. Mechanical response of pulvinus of Erythrina indica, by make of 



kathode and anode ......... 583 



Magnetic Response : 



277. Uniform magnetic responses ........ 594 



278. Periodic groupings in magnetic response ..... 594 



279. Incomplete magnetic recovery after strong stimulation . . . 595 



280. Additive effect of magnetic stimuli, individually ineffective . . 595 



281. Magnetic tetanisation, with transient enhancement of effect on 



cessation ........... 623 



282. Demonstration of exact magnetic balance ..... 608 



283. Effects of A-tonus and K-tonus on magnetic conduction . . . 609 



284. Opposite effects of moderate and strong K-tonus on magnetic con- 



duction ........... 610 



285. Effects of A-tonus and K-tonus on magnetic excitability . . . 611 



286. Enhancement of magnetic conductivity by successive magnetic 



stimuli . . . . . . . . . . .612 



287. Blocking of transmission of magnetic excitation . . . . 613 



