INDEX 



Desmodium pulsation, effect of acid on, 352 



> ? >> ,, alcohol on, 324 



>> 5 > ,, alkali on, 352 



j> jj ,, barium salt on, 351 



)> „ ,, carbonic acid on, 325 



55 ,5 »5 copper sulphate solution on, 326 



55 55 „ light on, 691, 692 



55 55 5 5 temperature on, 332-338 



,, ,, period and amplitude of, 317 



„ ,, periodic variation of, 341 



55 55 similarity between Biophytum pulsation and, 345 



55 55 55 55 cardiac pulsation and, 345-354 



,, ,, spark- record of, 327 



,, ,, temperature, maximum of, 331 



,, ,, thermo-tonic minimum of, 331 



Detmer on photonasty, 643 

 Development, thermographic, 184 

 De Vries on epi- and hypo-nasty, 643 



,, on heliotropic action on leaves, 622 

 ,, on plasmolytic method, 549 

 Dia-geotropism, so-called, 640, 654 

 Dia-heliotropism, so-called, 640-654 

 Differential response in plant, 14 



,, ,, magnification of, 51 



,, ,, of compound strip, 13 



Directive versus non-directive action of light, 634 

 Diurnal sleep, 629, 633, 634 



Dorsi-ventral organ, differential geotropic action inducing torsion in, 662 

 ,, ., ,, heliotropic action inducing torsion in, 658 



„ ,, no specific sensibility in, 577 



Dutrochet on conducting elements in Mimosa, 251 



Electric radiation, effect of, on Mimosa, 619 



„ response, difference of excitability detected by, 38 



,, ,, laws of, 42 



,, multiple, 279 



,, ,, of inorganic substance, 40 



,, ,, simultaneous mechanical and, 34 



,, ,, to direct stimulation, 32, 518 



,, ,, to indirect stimulation, 37, 517 



,, ,, true excitatory negative and hydrostatic potitive, 35, 37 



,, waves, effect of, on growth, 618 



' Electrification ' of soil, effect of, on growth, 560 

 Electromotive Method, detection of excitatory wave by, 261 

 Electrotactile Method of detection of excitation, 256, 280 

 Electrothermic stimulator, 17 



Electrotonus, variation of excitability by, 234, 235, 236 

 Elfving on geotropic action on grass-haulm, 496 

 Erythrina indica, differential geotropic response of, 664, 665 



3D 



769 



