INFLUENCE OF CLIMATE, ETC., ON THE DISTRIBUTION & CHARACTER OF DISEASE. 613 
Dinwiddie, Arkansas, Jait Butler, Mississippi, Cary, Alabama, 
and Prof. Bitting, Florida, having observed the disease very in- 
frequently. 
The central Mississippi valley, the west and north-west ap¬ 
pear to be the favorite regions for the development of this dis¬ 
ease. I have seen it assume an epizootic form in Illinois during 
exceptionally dry seasons, attacking sometimes 30 and 40% of a 
herd of twenty or thirty animals. Drs. J. S. Butler, Minneapo¬ 
lis, Minn., T. J. Turner, Missouri, Lemay, Kansas, T. E. White, 
Missouri, G. A. Johnson, Iowa, S. Stewart, Kansas, W. B. 
Niles, Iowa, A. H. Bak^r, Nebraska, and Waugh, California, 
Arizona, New Mexico and old Mexico, all report it very com¬ 
mon, and this seems the general condition all along the Rocky 
Mountains, and these semi-arid states sloping eastward from 
their base except, it seems, North Dakota, in which Dr. Hine- 
bauch reports it very rare In all localities there appears to be 
a tendency, especially in the external lymphatic type, to spon¬ 
taneous recovery through suppurative destruction of the affected 
glands and the iodide of potash treatment seems successful in a 
large percentage of cases. 
It seems to be attributed by common consent, in most cases, 
to wounds caused by germ-infested hard, coarse food, but this 
seems to account for the means of infection and geographical 
distribution of the disease, rather than for the geographical dis¬ 
tribution of the germ itself, a question which at present seems 
unanswerable. It seems that were the germs equally distribu¬ 
ted sufficient coarse food would be encountered in eastern states 
to frequently produce the necessary wounds for infection. 
Bursatte has been so largely described as a disease of Brit¬ 
ish India and so scantily, and that only in periodic literature, 
that its presence is not generally looked for in this country, and 
far from all veterinarians have given the matter sufficient notice 
to recognize a case when seen, and it is feared that the reports 
so kindly sent me are not wholly reliable as to the geographi¬ 
cal distribution of this malignant infectious disease. 
R. W. Burk, and other East India writers, describe the dis- 
