224 EXERCISE. 



great a portion of serum to constitute ail 

 impoverished blood in being deprived of its 

 due proportion of Crassamentum; as be- 

 fore recited. 



To renew and corroborate which, I must 

 be permitted to recommend to the retrospec- 

 tive attention of those anxious to distinguish 

 between the specious delusion of theory and 

 the estabhshment of fact, my observations ill 

 the same class, under the article of ^' mange/^ 

 where it will be foUnd I have defined the 

 poverty of the blood in the following expla- 

 natory passage. 



*' For the blood being, by this barren con- 

 tribution, robbed of what it was by nature 

 intended to receive, becomes impoverished, 

 even to a degree of incredibility (by those 

 unacquainted with the system of repletion 

 and circulation) ; it loses its tenacity and 

 lahamic adhesive quality, degenerating to an 

 acrid serous vapour, that acquires malignity 

 by its preternatural separation from its ori-* 

 ^inal corrector J ^ 



These explanations are so physically cor- 

 rect, so perfectly clear, and so evidently 



