194 THE HOUSE 1 LIVE IN. 



the human body ; neither is it to be forgotten 

 that the earth is watered, in part, directly from 

 the atmosphere. 



Still there is a striking resemblance between 

 the two great processes* the one to repair 

 constantly the wants of a world ; the other, to 

 supply the wants and repair the waste, &c. of 

 what, for the sake of its near relation to its 

 celestial habitant, is worth far more than any 

 known globe. 



PREPARING THE BLOOD. But how is this 

 blood, in its ten thousand thousand crimson 

 streams, prepared and supplied to the human 

 body ? for it must be first made before it can 

 be supplied. It is a most curious and indeed 

 wonderful process, and one which demands a 

 particular description. 



MASTICATION, OB CHEWING I have al- 

 ready told you about the teeth, their number, 

 their uses, &c. I am now ready to say that 



*Man, in this point of view, more than in any 

 other, may justly be called a MICROCOSM. 



