
SYNOPSIS. 
Practical bearing of the disease upon the live stock in- 
terests of Minnesota. Conclusion, a serious problem. 
Cause, a rod-shaped germ very closely resembling and 
possibly identical with the swine plague bacillus. Method 
of dissemination and infection unknown. 
The disease may appear suddenly and cases develop 
rapidly, or the cases may be chonic and develop slowly, there 
being several widely differing types of the disease. 
Ante-mortem symptoms are frequently unsatisfactory in 
the acute cases, because of the very limited period of sickness 
before death. Chronic cases on the other hand give much 
more satisfactory opportunities for studying symptoms. 
Symptoms discussed. Disease easily ieee as a rule 
on examination post-mortem. 
It has been less than three years since the first case in 
Minnesota was recognized by Dr. Wilson. During the fol- 
lowing two years there were reported 80 outbreaks, involv- 
ing 52 farms, and a loss of 551 cattle. There were probably 
many other outbreaks which were not reported. 
Records of outbreaks which came under the personal ob- 
servation of the writer, including a series of examinations 
post-mortem, with histories of the ante-mortem develop- 
ment. 
Information concerning the disease put on permanent 
record. 
University experimental outbreak described in detail; the 
cases uniformly of an acute meningeal type and closely re- 
sembling specific cerebro-spinal meningitis. 
Case of hemorrhagic septicemia in a sheep. The first 
case of this disease which appeared on the University Farm 
died very suddenly. The nature of the disease not suspected 
until examination post-mortem had been conducted. 
Possiblerelation of hemorrhagic septicaemia (meningeal 
’ type) to some cases of supposed milk fever. 
A number of outbreaks of suspected hemorrhagic sep- 
