216 
REPORTS OF CASES. 
had no influence on the fever, the animal received on the fifth 
day an injection of 3 grams salvarsan and two days later was 
free from fever. 
Among the work horses the first case of the plague appeared 
September 24, 1911. The animal was treated with 3 grams 
salvarsan and was well in three days. A second case ran its 
course with but little elevation of temperature. Further new 
cases have not developed. 
In Trakehnen onlv five horses were first treated with sal- 
j 
varsan. The fall of temperature did not appear in so typical a 
fashion as in Gudwallen. This is to be explained, in the first 
place, by the fact that at Trakehnen salvarsan was used only in 
the severe cases which seemed to be of a threatening character. 
In one animal (No. 5) the disease had already advanced so far 
when salvarsan was given that the animal died a few hours later. 
Inspector Fischer, of Trakehnen, who had carried out the 
treatment there, reported as follows: 
The working mare “ Panzerklinge,” who had been given 2.0 
gram salvarsan, showed no reaction. The temperature fell on 
the next day but a tenth of a degree, but the pulse, which had 
been miserable, small and frequent, improved during the subse¬ 
quent days; the respiration was less frequent and the animal was 
stronger. As the temperature showed no further tendency to 
fall, nor the appetite to return, the animal received a second in¬ 
jection five days after the first. Two grams were given. No 
reaction followed. By night temperature had fallen about 
1.5° C. The next day it rose a little but the general condition 
was much improved. The results at Trakehnen show that one 
injection is not enough in severe cases to bring down the fever. 
They will be continued and treatment will be instituted in mild 
cases and also as early as possible in the disease. The results 
appear to be worth publishing. 
RUPTURE OF THE ABOMASUM. 
By A. W. Whitehouse, D.V.S., Boulder, Colorado. 
The history and symptoms of this case are very scanty and 
the autopsy, as will be explained, was perfunctory, but the 
variety of the conditions seems to make it worth recording. 
Gresswell (“Diseases and Disorders of the Ox,” London, 
1889) mentions the possibility of such condition, without enlarg¬ 
ing on it. Friedberger and Frohner quote Harms as describing a 
