500 
,T. S. KEMP. 
On the following morning a post mortem examination of the 
thoracic organs of the horse was made. The heart, when re¬ 
moved, weighed eleven pounds. The right ventricle was much 
dilated, and contained a little fluid blood. The wall of the right 
ventricle was soft and flabby, and in contact with the median 
septum. It measured a little over one centimeter in thickness 
near the base, and two centimeters near the apex of the cavity. 
The left ventricle was empty and its external walls measured four 
centimeters. The inter-ventricular septum measured three and 
one-half centimeters. The auricles were empty. The muscular 
structure of the left ventricle and of the median septum was 
yellowish in color, soft and readily broken down. 
A microscopic examination was made by Dr. G. L. Peabody 
of the New York Hospital, to whose kindness we are indebted 
for the following interesting description: The muscle-fibre cells 
from the left ventricle were so granular, by the reason of the 
presence of fat, that the normal transverse striation could with 
difficulty be made out in some places. In most places the striae 
were completely undistinguishable. There was also an abnormal 
amount of fat between the bundles of fibres in the connective 
tissue. The muscular structure of the right ventricle and of the 
interventricular septum were less disintegrated. Very generally 
the transverse striae could be seen. Still, even in these places, 
every now and then could be seen a muscular fibre-cell, which 
appeared like a tube filled with granules of fat. 
This extensive diseased group had escaped all investigation, 
as by the condition of the pulse which, though weak, was regu¬ 
lar, an examination of the heart was not made, and even if it 
had, would probably have proved useless on account of the nature 
of the disease as well as the vicious character of the animal. 
REPORT OF CASE. 
A CASE OF LUPUS EXEDENS. 
By J. S. Kemp, Jr., D.V.S., House Surgeon. 
The subject was a brown gelding, nine years of age and 
weighing about 1,200 pounds. He had been in the possession of 
his present owner for two years, during which time he had per 
