ILLUSTRATIONS 



XI 



FIGURE. 

 142. 



143. 

 144. 



145. 

 146. 



Response of leaflet of Mimosa to light 

 Response of leaflet of Averrhoa to light . 

 Diagramnidtio representation of different types of photo 



tropic response ...... 



Phototropic curvature of tendril of Passiflora 



Effect of rise of temperature on phototropic curva 



ture ...... ... 



147. .\fter-effict of rise of temperature .... 



148. Arrangement for record of torsional response . 



149. Record of torsional response of pulvinus of Mimosa 



pudica ........ 



l.iO. Leaflets of Cassia alata ..... 



151. Positive response to thermal radiation 



152. Record of positive, neutral, and reversed negative 



curvature under thermal radiation . 



153. Diagrammatic representation of the wireless system 



154. Mechanical response of Mimosa leaf to electric waves 



155. Electric response of Mimosa to Hertzian wave . 



156. Record of responses of growing organs to wireless 



stimulation ....... 



157. The Quadruplex Geotropic Recorder 



158. Effect of alternate application of cold on upper and 



lower sides of the organ .... 



159. Geotropic response of flower stalk of Tuho-rose 



160. Geotropic response of Tropceoluvi 



161. The Complete Geotropic Curve .... 



162. Diagrammatic representation of photic and geotropic 



stimulation ....... 



163. The effect of super-imposition of photic stimulus 



164. Diagrammatic representation of the mechanical and 



electrical response ...... 



165. Diagrammatic representation of geo-electric response 



166. Diagrammatic representation of Methods of Axial and 



Vertical Rotation ...... 



167. Diagrammatic representation of the geo-electric res 



ponse of the shoot ...... 



168. Geo-electric response of the petiole of Trojpceolum 



21 A 



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