INDEX 



197 



Kecorder, mechanical, 3 



photographic, 11, 22 

 response, 19 

 Eesponse-curve, characteristics of, 3 



electrical, abnormal, in metal, 123, 125 

 in stale nerve, 11, 123 



in stale or dying plant, 48, 187 



in stale retina, 11, 164 



55 converted into normal after strong or con- 



tinuous stimulation in metal, 125, 187 



55 55 55 55 55 in nerve, 124, 187 



55 55 55 in plant, 48 



abolition of, by high temperature in plant, 32, 64 



?5 by ' poison,' in metal, 143, 189 



55 55 in nerve, 139, 189 



,1 in plant, 30, 32, 78, 79, 189 



?, additive effect of stimulus on, in metal, 135 



5> 55 ,, on, in plant, 37 



55 anaesthetics, effect of, on, in nerve, 72 



in plant, 30, 73, 74, 75 



55 55 annealing, effect of, on, in metal, 101, 138 



by method of block, 28, 82, 92 



55 55 by negative variation, 9, 18, 87, 183 



' 55 by relative depression, 87 



51 by relative exaltation, 89 



55 ,, conditions for obtaining, 6, 86, 87 



55 continuous transformation from positive to negative 



in metal, 115 

 ,5 decline and reversal of, under continuous light in 



photo-sensitive cell, 166 

 ,) ,, decline and reversal of, under continuous light in 



retina, 166 



5, depressants, effect of, on inorganic, 142 



diminution of. See Fatigue 



diphasic in metal, 113, 114, 115, 116, 188 



55 ,, in nerve, 188 



55 ?, ,, in plant, 46, 188 



55 ,, dose, effect of, on inorganic, 89, 146, 189 



55 55 ,, on, in plant, 79, 189 



5 enhancement of, after continuous stimulation in 



metal, 127, 128, 186 

 . ,, enhancement of, after continuous stimulation in 



nerve, 127, 186 

 ,5 5, maximum effect due to superposition of stimulus, 



35, 136 

 measure of physiological activity, 13 



