INDEX J6j 



Chemical reagents, effect on autonomous response, 323-326 

 ,, ,, ,, growth, 479-488 



,, ,, ,, mechanical response, 131—137 



,, ,, ,, suctional response, 383, 384, 385 



,, ,, modification of effect of, 322 



Chemo-taxis, 698 



Chemo-tropic response : effect of acid, 548 

 ,, ,, ,, alkali, 548 



,, ,, ,, copper sulphate solution, 548 



,, ,, ,, sugar solution, 549 



Chlorine, effect of, on mechanical response, 137 

 Ciesielski on effect of amputation of root-tip, 539 

 Citrus decumana, response of leaf of, 64 

 Clitoria tematea, diurnal sleep movement of, 629 

 Cold, abolition of autonomous response by, 141, 331 

 ,, ,, mechanical response by, 141 



,, ,, suctional response by, 374 



,, diminution of conductivity by, 221, 249 

 ,, prolongation of latent period by, 141, 264 

 Cold-rigor, 171 



Colocasia, excretion of water in, 397 

 Conduction, channels of, 60, 250 



,, of excitation and of sap, 391 



,, pseudo-, 251 



Conductivity, difference between longitudinal and transverse, 250 

 ,, preferential direction of, 242 



,, seasonal variation of, 602 



,, variation of, by anaesthetics, 223 



,, ,, by cold, 221, 249 



,, ,, by electrotonus, 233 



,, ,, by fatigue, 222 



,, ,, by rise of temperature, 222, 249 



Conductivity-variation, response by, 39 

 ' Constitution,' elements determining, 478 



,, modifying effect of, on action of drugs, 487 



Convolvulus, death-response of flower of, 182, 183 



,, response of plagiotropic stem to light, 625 



,, ,, ,, ,, to thermal shocks, 86 



Coprinus, action of light on, 569 

 Counterpoise, importance of, 19 

 Crescograph, 412-416 

 Crivum Lily, apo-geotropic response of, 498, 500, 504 



,, ,, direct and indirect after-effect of stimulus in, 460 



,, ,, effect of increased hydrostatic pressure on growth of, 428 



,, ,, • ,, tension on growth of, 433 



,, ,, ,, unilateral pressure of particles on, 497 



,, ,, excitatory response at different temperatures of, 453 



,, ,, optimum point of growth in, 448, 451 



,, ,, thermo-crescent curve of growth in, 447 



