EXPLANATION OF THE PLAT!-.-. 



PLATE XIII. 

 PUS. 



Fig. 1. Is a representation of an example of laudable pus 

 formed on a granulating surface on the arm of a 

 child, the consequence of a burn. In this figure, 

 one or two oil globules are likewise introduced. 



Fig. 2. The same acted on by acetic acid, and showing the 

 compound nuclei. 



Fii>. 3. Pus corpuscles treated with water, many of them 

 exhibiting but a single nucleus. This example of 

 pus was obtained from a pustule formed around the 

 root of the nail, and induced by a prick received 

 during dissection. 



Fig. 4. Epithelial scales remarkable for the great size of their 

 nuclei, and obtained from a small pustule situated 

 beneath the nail of one of the fingers, and which 

 pustule was also the result of a prick received in 

 dissecting. 



Fig. 5. An example of pus obtained from an old scrofulous 

 abscess : the corpuscles in it are seen to be mostly 

 broken up into the primary molecules of which they 

 are constituted. 



Fig. 6. An example of venereal pus, showing the peculiar 

 animalcules described by Donne. 



The whole of the figures contained in this and 

 tin- two preceding plates illustrate human micro- 

 scopic anatomy. 



