ILLUSTRATIONS xxxiil 



PIG. PAGE 



1 20. Photographic Record showing Effect of Rapid Cooling, by Ice-cold 



Water, on Pulsations of Desmodium gyrans . . . . . 181 



121. Photographic Record of Pulsations of Desmodium during Continuous 



Rise of Temperature from 30 C. to 39 C 182 



122. Diminution of Response in Eucharis by Lowering of Temperature . 183 



123. After-effect of Cold on Ivy, Holly, and Eucharis Lily . . .184 



124. Photographic Record of Responses in Eucharis Lily during the Rise 



and Fall of Temperature . . . . - . . . . 185 



125. Diminished Amplitude of Response with Rising Temperature. (Stem 



of Amaranth} . . -. . - . . . . . . .186 



126. Photographic Records of Autonomous Pulsations in Desmodium, 



showing Increase of Amplitude and Decrease of Frequency, with 

 Lowering of Temperature . . . . . ... 188 



127. Photographic Record showing Effect of Steam in abolishing Response 190 



128. Record of Electric Responses of Amaranth at various Temperatures . 195 



129. Photographic Record of Thermo-mechanical Curve given by Coronal 



Filament of Fassiflora . . ... . . . . . 198 



130. Thermo-mechanical Curve of Two Different Specimens of Style of 



Datura alba, obtained from Flowers of the same Plant . .198 



131. The Thermal Chamber 200 



132. Photographic Record exhibiting Electric Spasm in the Petiole of 



Musa ........... 202 



133. Photographic Record showing Electric Inversion at Death-point, 



59-5, in the Petiole of Amaranth 203 



134. Record showing Inversion of Electric Curve and Simultaneous 



Reversal of Electric Response in Stem of Amaranth . . . 204 



135. Multiple Mechanical Response of Biophytum, due to a Single 



Strong Thermal Stimulus . . . . . . . . 208 



136. Multiple Electro-tactile Response in Stem of Mimosa due to Single 



Strong Thermal Stimulus . . . . . . . . 209 



137. Photographic Record of Multiple Electrical Response in Leaf of 



Biophytum ........... 209 



138. Multiple Electrical Responses under Different P'orms of Stimulus in 



Different Organs ......... 210 



139. Photographic Record of Multiple Electrical Response to Single 



Thermal Shock in Frog's Stomach . . . . . . 210 



140. Induction of Autonomous Response in Biophytum at Moderately 



High Temperature of 35 C 211 



141. Initiation of Multiple Response in Lateral Leaflet of Desmodium 



originally at Standstill . . . .. . . ..212 



142. Photographic Record of Autonomous Mechanical Pulsation in 



Desmodium Leaflet . . . . . . . . . . .213 



143. Spark-record of Single Pulsation in Leaflet of Desmodium . . . 214 



144. Photographic Records of Simultaneous Mechanical and Electrical 



Pulsation of Desmodium Leaflet . . . . . .218 



145. Photographic Record of Simultaneous Mechanical and Electrical 



Pulsation in Leaflet of Desmodium, before and after Physical 

 Restraint of Leaflet . . . . . . x . . 220 



b 



