CLASSIFIED LIST OF EXPERIMENTS 745 



PAGE 



315. Positive tone of sensation due to thermal stimulus converted to 



negative under kathode ........ 672 



316. Negative tone of sensation due to thermal stimulus converted to 



positive under anode ......... 672 



317. Reversal of normal effects under feeble E.M.F. . . . 671,672 



318. Differences of fusion in sensation according as it is modified to 



positive or negative . .' . . . . . 671, 672 



MEMORY 



319. Revival of latent impression in metal under diffuse stimulation . 683 



320. Revival of latent or ' memory image ' in phosphorescent screen under 



diffuse stimulation . . . . . . ... 684 



321. Reversed or negative image ........ 685 



