CHANGING IDENTITIES 



the purest food go directly from the stomach into 

 the blood. 



If we trace the blood of animals to the last 

 source, we find some organ which takes the digested 

 food on one side and delivers the manufactured 

 blood on the other. There is, then, in that organ 

 some mysterious process going on which makes the 

 final change from the old identity into the new. 



The broken up food that comes to one side of 

 that organ is not blood ; the blood that comes forth 

 on the other side is not broken up food, but vital 

 blood. Then, how far goes on one side disor- 

 ganization, and where starts on the other side the 

 building up process? 



The organ does not permit the passage of solid 

 bodies of perceptible size; no ordinary liquid sub- 

 stance will penetrate it as a whole substance. 



The balanced ration feeder says the cow must 

 have clover hay to make muscle ; the cow will pick 

 out timothy every time, and out of the hydrocarbon 

 manage to make muscle enough to throw the clover- 

 fed cow over the fence. 



Humans have managed for years to live on air 

 and water and hydrocarbons, and no chemist would 

 be able to find in air, food and water one-tenth 

 sufficient quantity of some of the elements that 

 these humans have built up into their system from 

 these things. 



The maple tree has formed much potassium into 

 its body; the fir tree very little; but the soil under 

 the maple, after furnishing that which made the 



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