G38 



Professor Jagadis Chunder Bose 



[May 10, 



I have shown you this evening autographic records of the history 

 of stress and strain in the living and non-living. How similar are 

 the writings ! So similar indeed that you cannot tell one from the 

 other apart. We have watched the responsive pulses wax and wane 



a 



V 



Fig. 19. — (a) Normal response ; (b) effect of poison ; (c) revival by antidote. 



in the one as in the other. We have seen response sinking under 

 fatigue, becoming exalted under stimulants, and being killed by 

 poisons, in the non-living as in the living. 



Amongst such phenomena, how can we draw a line of demarca- 

 tion, and say, "here the physical process ends, and there the physio- 

 logical begins " ? No such barriers exist. 



Before 



After 



Fig. 20.' 



-Photographic record, showing stimulating effect of small dose 

 of KHO (0-2 per cent.). Compare with Fig. 17. 



Do not the two sets of records tell us of some property of matter 

 common and persistent? Do they not show us that the responsive 

 processes, seen in life, have been foreshadowed in non-life? — that 

 the physiological is, after all, but an expression of the physical? — 



