Pus. 



279 



degeneration. The colls become highly granular, the protoplasm 

 full of fat vacuoles, and irregular, and finally the cells become 

 nothing more than a bunch of fat globules held together by 

 the protoplasmic remains (fatty granular cells) or falling 

 apart into faffy detritus. The leucocytes, now known as pits 

 corpuscles, and incapable of further motility, are suspended in 

 the fluid portion of the exuded plasma, here known as the 



Fig. 56. 



rus from cow; unstained microscopic preparation of pus cells (highly magnified). 



pus scrum {liquor puris]. or are deposited in the meshes of the 

 tissue. The cells of the tissue in which the suppuration has taken 

 place are also the seat of marked fatty degeneration ; the connective 

 tissue corpuscles and cells of the vessel walls often exhibit phagocytic 

 appearances and are found with leucocytes englobed within their 

 substance ; and in chronic inflammations always multiply, thus lead- 

 ing to restoration of the lesion or its encapsulation. The pyogenic 



