ILLUSTRATIONS 



FIG. 



1. Record of Healthy Adult and Senile Human Pulse (Broadbent) 



2. Effect of Muscarin in arresting Pulsation of Frog's Ventricle (Gushing) 



3. Record of Human Pulse (Broadbent) ..... 



4. Demonstration Optical Pulse- Recorder ..... 



5. Death of Plant, and Arrest of Pulsation, by Poison . 



6. Death, and Arrest of Pulsation, in Leaflet of Desmodium by Strong 



Electric Shock ......... 



7. Response of India-rubber ....... 



8. Mechanical Lever Recorder ....... 



9. Series of Contractile Responses in Muscle .... 



10. Photographic Record of Longitudinal Contractile Response i; 



ordinary Stamens [Brownea ariza) ...... 



11. Differential Lateral Response of Compound Strip 



12. Plant Chamber and Recorder ....... 



13. The Electro-thermic Stimulator ...... 



14. Diagram of Connections for Stimulation by Condenser Discharge 



15. Photographic Record of Response and Recovery of Mimosa, taken on 



a slowly moving drum ........ 



16. Photographic Record of Response in different specimen, taken on 



faster-moving drum ...... 



17. Response of Biophytum to Thermal Stimulation 



18. Response of Biopliylum to Electric Stimulation . 



19. Effect of Load ... ... 



20. The Spiral Spring- Recorder ..... 



21. Isometric Response of Mimosa .... 



22. Hydraulic Model for Explanation of Electric Response 



23. Electrical Response in riant by Method of Block 



24. Electric Response Recorder ..... 



25. Method of Transmitted Stimulation .... 



26. Simultaneous Mechanical and Electrical Responses in Biophytum . 



27. The Abnormal Positive preceding the Normal Negative in Mechanical 



and Electrical Responses in Biophytum 



28. Response of Selenium to the Stimulus of Light 



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