114- 
cases DEPARTMENT. 
In other cases the calcification is of such a character as to 
change almost entirely the appearance of the capsules and con¬ 
tents. 
In some cases cystieerci, or measles, perish and become calci¬ 
fied. But these formations are somewhat larger than those of 
trichinae, and are often filled with a caseous mass. The “ sacks 
of Rainey,” or as they are sometimes called “ Psorospermife,” are 
elongated bodies, like the trichinae, situated within the sarcolem- 
ma, the true nature of which, or their pathological importance, is 
not yet well determined. Some of the points distinguishing them 
from trichinae are : 
That by the latter the situation of the muscle fibre, or better, 
the entire plasma, sarcous element, is destroyed within that part 
of the sarcolemma which is included in the capsules of the .tri- * 
chinae. By the psorosperms, however, it is retained, and only 
displaced by the object itself, limiting it on each side, and con¬ 
tinuing directly from the poles. 
Bruch, Virchow, and Leuckart have described peculiar round¬ 
ish or oval masses of a whitish color, having varying dimensions,' 
which sometimes appear in the flesh of hams, and which have 
been microscopically demonstrated to consist of an agglomeration 
of needle-like chrystals. They fill the muscle-fibre to a variable 
degree without otherwise disturbing its structure, and disappear 
upon treatment with muriatic acid, the normal transverse stria- 
tion again becoming apparent. 
(To be continued .) 
CASES DEPARTMENT. 
ANGINA ANTHRACIS IN THE HOG. 
By G. S. Agersborg, D.V.S., Vermillion, Dakota. 
On the evening of the 2d of May I was summoned by Messrs. 
Thompson & Lewis to attend a sick hog at their stock yards. 
Mr. Thompson informed me that within the past twelve days he 
had lost seven hogs, all dying a few hours after being taken 
sick. On arriving at the yard I found a 200 pound fat hog lying 
