404 
W. L. WILLIAMS. 
guinal gland of the right side was the seat of an extensive abscess, 
opening at the upper part of the scrotum. A large abscess, occu¬ 
pying the usual position of the testicle, filled with dark yellow, 
hard cheesy pus, pushed the testicle from its place up into the in¬ 
guinal ring. The testicle was small, atrophied, soft, flabby and 
pale yellow, with the membranes firmly adherent at every part. 
Penis offered no external evidence of disease. 
Urethra contained a small amount of a dirty puriform mat¬ 
ter, the living membrane appearing roughish, grayish-yellow in 
color, without any appearance of ulcers. 
The seminal vesicles and enlarged portions of vasa deferentia 
contained a considerable amount of thin, grayish, puriform matter. 
The left testicle was about natural in size, with coverings firmly 
adherent to every part. No appearance of ulcers was found in 
the urethra of either of several stallions examined, but all seemed 
to offer, in a greater or less degree, a collection of unnatural puri¬ 
form material in the vesiculse seminse and vasa deferentia, from 
which, so far as could be seen, the infecting material had been 
derived. 
The testicles were uniformly pale yellow, soft and flabby, and 
almost invariably smaller than natural. 
In some cases the coverings of the testicle (tunica vaginalis 
propia and tunica albuginea) were thickened, adding to the gross 
size of the testicle and giving it a somewhat firmer feel than where 
this thickening was absent. The two peritoneal coverings were 
more or less completely adherent to each other. Tha condition of 
the sheath and scrotum varied widely from the normal size to the 
great enlargement in the cases noted above. 
Other observers have noticed inconstant changes in the nervous 
system, principally of injection of the coverings of the brain and 
spinal cord, softening of the lower part of the cord and occasional 
extravasation of fluid into the ventricles of the brain. 
The nasal mucous membrane usually shows catarrhal inflam¬ 
mation, with collections of pus or mucus in the nasal cavities. 
Metastic abscesses may occur in the testicles, spermatic cord, 
lungs, and other organs. 
Diagnosis. Of all contagious diseases, none probably are so 
