EIGHTH ANNUAL REPORT. 111 
CARDIO-VESICULAR SYSTEM. 
Myocarditis is doubtless the most important disease of this 
system arising among our animals; the general conditions induc- 
ing it were discussed in last year’s reports under “Effects of Cap- 
tivity on Wild Animals.” Needless to say this serious condition 
has been present in all of the elk of the old herd which have come 
to autopsy. One mule deer died from a fibrinous pericarditis. 
RESPIRATORY SYSTEM. 
The only cases that come under this heading have already been 
discussed under tuberculosis, pneumonia, and as concerning the 
bronchial filaria. 
DIGESTIVE SYSTEM. 
The important diseases of this tract have already been consid- 
ered under gastro-enteritis and, in a previous communication, 
under fatty degeneration of the liver. Three fatal cases of fish 
poisoning occurred among the sea lions; one of this same group 
of cases recovered. 
SPLEEN AND LYMPHATIC SYSTEM. 
Only secondary lesions have been found in these organs, mostly 
tuberculosis and simple hyperplastic lymph-adenitis of inflamma- 
tory origin. 
GENITO-URINARY SYSTEM. 
But two cases of primary nephritis have been discovered this 
year, one occurring in a caribou and one in an ocelot. Both cases 
showed the lesions of acute exudative nephritis. 
Two cases of post-partum sepsis have already been considered. 
One case of cystitis of unknown origin, terminating in rupture 
of the bladder, was found in a small rodent. 
MALNUTRITION. 
Eight post-mortem examinations have shown no definite lesions 
other than such as might be most conveniently classified under the 
heading of malnutrition. Two cases have died as the direct re- 
sult of general visceral fatty degeneration, probably due to over- 
nourishment and under-exercise. 
