202 THE HOUSE I LIVE IN. 



the food is wholly vegetable, the chyle is of a 

 fine pearl color. 



The chyle, in its pure state, is just like the 

 blood, except in color. The little globules, 

 (small round bodies,) which swim in the blood, 

 and give color to it, are numerous in the chyle ; 

 but instead of being red, as in the blood, they 

 are white. I have said that the chyle, in its 

 nature, is like the blood. Of the nature of 

 the latter, I shall have occasion to say more 

 presently. 



Whether the chyle is changed to a red color 

 as soon as it is mixed with the blood, or 

 whether the change does not take place till it 

 has passed with it through the lungs, we can 

 better judge, perhaps, when we come to speak 

 of the blood, and the changes it undergoes in 

 those organs. 



Having thus traced the food, or raw mate- 

 rial, through the whole of a most wonderful 

 manufacturing process, (which, by the way, 

 we call digestion,) till chyle, and perhaps 

 blood is formed from it, it may be well to pause 

 and consider, for a few moments, the different 

 materials from which this most important fluid 

 is prepared. 



