INDEX 



Acid and alkali, antagonistic action of, on cardiac pulsation, 339 



„ ,, „ ,, ,, ,, ,, pulsation of Desmodium, 340 



Additive effect, 54 



,, „ quantitative relation of, 55 

 Age, effect of, on polar excitation, 267 

 Alcohol, effect of, on Mimosa response, 91 



„ „ „ ,, Desmodium pulsation, 333 

 * All-or-none ' principle, in response of Biophytum, 281 



„ ,, ,, ,, „ ,, cardiac tissue, 282 



Ammonia, effect of, on Mimosa response, 94 

 Anaesthetics, action of, on conductivity, 154 



,, » „ >, response of Mimosa, 92 



,, ,, „ >) rhythmic response, 336 



Anode and kathode, contrasted effects of, 234 

 Anode, break effect of, on Desmodium pulsation, 237 



„ excitatory effect of break on plant-tissue, 221, 224, 226, 228, 229, 



231 

 ,, make effect of, on Desmodium pulsation, 236 

 Apex time, determination of, in Mimosa, 37 



„ „ „ ,, Desmodium, 309 



Ascending and descending currents, time difference in the actions of, 204 



„ „ „ electrotonic effects of, 165, 239 



Ascending and descending induction shock, time -difference in the 



actions of, 206 

 Automatic exciter, 66 



Automatic response, continuity with multiple, 288 

 ,, „ due to storage of energy, 287 



„ „ cessation of, by depletion of energy, 312 



see also Desmodium pulsation 

 Autonomous response, see Automatic response 

 Averrhoa hilimhi, polar action of current on, 228 

 Averrhoa carambola, multiple response in, 286 



„ „ polar action of current in, 226, 262 



„ „ velocity of transmission of excitation in, 151 



Biophytum sensitivum, arrest of excitatory impulse in, by poison, 169 

 „ ,, comparative sensitiveness of animal and, 249 



„ „ direction of preferential conduction in, 152 



„ „ dual impulse in, 181 



369 



2 B 



