XXXIV PLANT RESPONSE 



FIG. PAGE 



151. Effect of Barium Chloride Solution on Desmodium . . 351 



152. Arrest of Beat of Ventricle of Frog at Diastole by Application of 



Acid 351 



153. Systolic Arrest of Heart-beat by Dilute NaHO Solution (Gaskell) . 352 



154. Arrest of Desmodium Pulsation at 'Diastole' by Application of 



Acid 352 



155. Arrest of Pulsation of Desmodium at 'Systole' by Application of 



Dilute Alkali 353 



1 56. Diagrammatic Representation of the Shoshungraph .... 365 



157. Photograph of Shoshungraph ........ 370 



158. Effect of Cold on Suction 374 



159. Curve showing Normal Suction at 23 C, Increased Suction at 



35 C, and the After-effect persisting on Return to Normal Tem- 

 perature 375 



160. Method of Hydrostatic Balance 375 



161. Record obtained by Method of Hydrostatic Balance of Successive 



Applications of Cold and Warm Water 378 



162. Record, obtained by Method of Hydraulic Balance, of Successive 



Effects of Cold and Warm Water ....... 380 



163. Effect of Strong KNO s Solution 384 



164. Effect of Strong NaCl Solution 384 



165. Effect of Copper Sulphate Solution 386 



166. Record showing Recovery to be Hastened by the Increase of Internal 



Activity which is caused by Application of Warm Water to the 

 Roots 401 



167. Diagrammatic Representation of Balanced Crescograph . . . 414 



168. Complete Apparatus for Crescographic Record under Ordinary and 



Balanced Conditions .. . . . . . . .416 



169. Multiple Growth -responses (Peduncle of Crocus) . . . . 417 



170. Responses of Leaf of Artocarpus to Thermal Stimulation . . 420 



171. Renewal of Growth-pulsation by Thermal Stimulus in Tamarindus 



indica originally at Standstill ........ 425 



172. Initiation of Erectile Response in Leaf by Supply of Water to partially 



Drought-rigored Mimosa ........ 426 



173. Initiation of Growth-pulsation by Small Supply of Water to 



Drought-rigored Seedling of Cucurbita . . . . . . 426 



174. Curve showing Relation between Internal Hydrostatic Pressure and 



Rate of Growth ( Crinum Lily) ....... 429 



175. Photographic Record showing the Slow Pulsations of Large Amplitude 



of Desmodium Leaflet at 30 C. to become very much Quickened 

 and Reduced in Amplitude at 42 C 431 



1 76. Growth-pulsation seen in Seedling of Balsam 432 



177. Photographic Record of Responses of Mature Style of Datura alba 



to External Thermal Stimulus ........ 434 



178. Photographic Record of Responses of Style of Datura alba in which 



Growth had come to a Temporary Stop 435 



179. Photographic Record of Response of Growing Style of Datura alba 



to External Stimulus ..,,..... 436 



