INDEX 373 



Latent period, apparatus for determination of, in 

 „ determination of, in Biophytum, 280 

 ,, Mimosa, 120 

 ,, Neptuma, 120 

 ,, „ effect of fatigue on, 128 



,, ,, ,, optimum condition on, 128 

 ,, ,, ,, strength of stimulus on, 125 

 ,, ,, ,, ,, temperature on, 130 



Laws of direct and indirect effects of stimulus, 196 



„ „ polar action of current on plant tissues, 233, 265 

 Ligature, effect of, on Desmodium pulsation, 303 



„ Stannius', on cardiac pulsation, 302 

 Light, initiation of pulsatory movement in Desmodium by the 



action of, 315 

 Light, multiple response induced by, in Biophytum, 286 

 Load, effect of, on mechanical response, 56 



,, ,, ,, „ amount of work performed, 58 



Mimosa, abolition of motile response by absorption of water in, 87 

 block of conduction of excitation in, 161, 164, 167 

 conduction of excitation in, 174 

 death-point of, 102 

 dual impulses in, 185 

 effect of alcohol on, 91 



ammonia on, 94 



carbon disulphide on, 92 



carbonic acid gas on, 91 



chloroform on, 93 



coal gas on, 92 



ether on, 92 



nitrogen dioxide on, 95 



ozone on, 89 



sudden darkness on sensitiveness of, 87 



sulphur dioxide on, 96 



sulphuretted hydrogen on, 94 

 erectile response of, 44, 185 

 fatigue in response of, 72 

 fatigue reversal in, 80 

 latent period of, 121 

 polar effects of current on, 229, 254 

 positive response in, 185 

 sensitiveness of, to electric stimulus, 50 

 staircase response of, 76 

 time relations of response of, 41 

 velocity of transmission of excitation in, 141 

 Multiple response, continuity between automatic and, 288 



to light, 315 

 ,, induction shock, 284 

 ,, thermal shock, 286 

 ,, strong stimulus in Averrhoa, 285 



