CHEMICAL PHENOMENA IN LIFE 



life as in inanimate matter. In inanimate Nature, 

 further, we always meet with the important 

 phenomenon that caloric energy can never be 

 transferred from a colder body to a warmer one, 

 unless other special processes render it possible. 

 By itself heat can only be transferred from a 

 warmer to a colder body. This law, well known in 

 Lord Kelvin's utterance, that the energy present 

 in the world has the tendency to dissipate, doubt- 

 less governs living matter as well as non-living. 

 There is only one part of physiology which is not 

 yet accessible to our methods and which we cannot 

 prove to be ruled by the well-known laws of 

 inanimate Nature. These are the psychological 

 phenomena. At present we see no way to transfer 

 physical and chemical methods to the phenomena 

 of the psychical world. 



124 



