THE NEW PHYSIOLOGY. 



only a special application of ordinary 



chemistry became firmly established, and is stffl 



may be catted the orthodox creed of 



may be truly said that most 



this creed as something which has 



an time, and that they would be try^twrl to 



deviation from it as harmful 



less I think that we have again 



and that a new physiology is arising m place of the 



physico-chemical physiology which has held 



so many years. I propose in this lecture to 



account of how, as it seems to me, this new 



is shaping itself. 



It is natural for us to assume that the aim of all 

 investigations in physiology must be to 

 causes of physiological activity. However 

 physiological reaction may be, 

 determine it can be investigated 

 from long experience we can be quite 

 experimental investigation win always lead to 

 result, however "obscure. There is, and 

 to experimental investigation of 

 ever, we examine the results obtained by 

 physiology there emerges a point in 

 greatly from the results ordinarily 

 investigation of inorganic phenomena: lor ft is 

 acteristic of physiological 

 pendent to an extreme degree on all sorts of 

 conditions. We recognise this 

 and response rather than of cause and 

 the light from a star is focussed on 

 physiological response by night, but none by day* TW 



