762 PLANT RESPONSE 



PAGE 



222. Translocation of optimum point 454 



223. Persistence of rhythmic activity at maximum ..... 432 



Autonomous torsion : 



224. Effect of temperature on rate of autonomous torsion . . . . 668 



Effect of Chemical Agents 

 Mechanical response : 



225. Effect of carbonic acid . . . . . . . . -131 



226. Effect of hydrogen 132 



227. Effect of carbon disulphide 132 



22S. Effect of alcohol 133 



229. Effect of ether on longitudinal response. . . . . .134 



230. Effect of ether on motile response of yl//w^M . . . . . 135 



231. Effect of acid 136 



232. Effect of chlorine gas 137 



Autonomous pulsation of Desmodium : 



233. Effect of ether 323 



234. Effect of alcohol 324 



235. Effect of carbonic acid gas ........ 325 



236. Effect of copper sulphate solution 326 



237. Effect of barium salt solution ....... 351 



238. Arrest at ' diastole ' by acid 352 



239. Arrest at ' systole ' by alkali 353 



240. Antagonistic actions of acid and alkali 353 



Suctional response : 



241. Action of KNO3 solution 384 



242. Osmotic versus excitatory action of NaCl solution . . . . 384 



Growth : 



243. Effect of carbonic acid 479 



244. Action of ether, external application 480 



245. Action of ether, internal application 481 



246. Excitatory effect of dilute solution of sodium carbonate . . . 482 



247. Effect of solution of sugar 482 



248. Effect of alcohol 483 



249. Effect of acid inducing relaxation and arrest ..... 483 



250. Effect of alkali inducing contraction and arrest 484 



251. Antagonistic actions of alkali and acid 484 



252. Action of strong sodium chloride solution under different thermo- 



tonic conditions .......... 485 



253. Differing effects of poisons on different ' constitutions ' . . . 487 



254. Opposite effects of same poisonous dose on different ' constitutions ' 487 



255. Opposite effects of large and small doses . . . . . . 4S8 



