THE 



MICROSCOPIC ANATOMY 



OF 



THE HUMAN BODY, 



PAKT I. THE FLUIDS. 



THE constituents which enter into the formation of the body, 

 and by the combination of which the human frame is built 

 up, naturally resolve themselves into two orders, FLUIDS 

 and SOLIDS, the latter proceeding from the former. 



In accordance with this natural division of the elements 

 which enter into the composition of the body, it is in- 

 tended to divide this work into two parts, the first of which 

 will treat of those components of our framework which are 

 first formed the FLUIDS ; and the second will be devoted 

 to the consideration of those constituents which proceed from 

 the fluid elements, viz. the SOLIDS. 



Of the fluids themselves, it is difficult to determine upon 

 any subdivision which shall be altogether without objection, 

 perhaps the most practicable and useful division of them 

 which can be made is, into ORGANISED and UNORGANISED. 



To the above arrangement of the fluids the following 

 exception might be taken : all the fluids in the animal 

 economy, it may be said, are to be considered as organised, 

 inasmuch as their elaboration is invariably the result of 

 organisation. But it is intended that the words organised 

 and unorganised, when applied to the fluids in this work, 

 should have a very different, as well as a more precise signi- 



B 



