REPRODUCTION 

 like light, heat, chemical affinity, elec- 

 tricity, etc. Hence it is maintained that 

 because we know nothing else except the 

 properties of matter and of force, there- 

 fore there is nothing besides these for life 

 to come from. 



We demur from this conclusion most de- 

 cidedly, on the ground that the chief laws 

 of life are now pretty well understood, and 

 so also are the chief laws of matter and of 

 force, and that there is no correspondence 

 between these two whatever. Every al- 

 leged instance of living matter becoming 

 so without the agency of previous life 

 proves on examination to be erroneous. 

 That all life is from life, and from noth- 

 ing else, is therefore the proposition which 

 we will discuss. 



It is just here that, as it seems to us, 



some reputable biologists have failed to 



perceive the real point at issue. Because 



some processes of growth and of nutrition 



37 



