^24 E X E R C 1 S E. 



rijhed blood in being deprived of its due pro- 

 portion of Crassamentum, as before re- 

 cited. 



To renew cind corroborate which, I muft 

 be permitted to rcconfimend to the retrofpec- 

 tive attention of thofe anxious to diftinguifli 

 between the fpecious delulion of theory and 

 the eftabhfliment of fad:, my obfervations in 

 the fame clafs, under the article of ** mange, ** 

 uhere it will be found I have defined the 

 poverty of the blood in the following expla- 

 natory pafTage. 



" t'or the blood being by this barren con- 

 tribution robbed of what it was by nature 

 irt tended to receive, becomes impoverillied 

 even to a degree of incredibility (by thofe 

 tihacquainted with the fyftem of repletion 

 and circulation;) it lofes its tenacity and bal- 

 fam'ic adhejive quality, degenerating to an 

 acrid ferous vapour, that acquires malignity 

 by its preternatural fcparation from its ori- 

 ginal corrector,'^ 



Thefe explanations are fo phyfically cor- 

 rect, fo perfcdly clear, and fo evidently 



2 adapted 



