110 UNIVERSITY OF WISCONSIN STUDIES 
illustrations given in the Second Annual Report (1908) of 
the Live Stock Sanitary Board to the Governor of North 
Dakota, it is evident that clinically these horses were afflicted 
with sporotrichosis. Furthermore, organisms obtained from 
these Dakota horses were declared to be identical by the 
Bureau of Animal Industry in Washington with the organisms 
from certain horses afflicted with a similar disease in Penn- 
svlvania, from which an organism was isolated and clearly 
shown to be the Sporothrir schencktt. The Dakota organism 
was at first taken to be Succharomyces farciminosus, the cause 
of lymphangitis in horses as deseribed by Tokishike and Pallin, 
Through the comparative studies of Paige, Frothingham and 
Paige, and also of the writer, of the organisms isolated from 
the Pennsylvania horses and an organism isolated from a 
human case from North Dakota by the writer, it was shown 
that the organisms were without question identical. This 
established the first vlear identity of the organism from lesions 
in horses and in the human and showed too that it was ap- 
parently identical with the Sporotrichum  schenckii as 
described by Schenck, Hektoen and others. 
Kk. F. Meyer™ has also recently studied this disease in 
horses. He concludes that spontaneous sporotrichosis in this 
animal is very common, especially in two localities, Penn- 
sylvania and North Dakota. He cites a ease of accidental 
laboratory infection in man as proof of the pathogenicity of 
equine strains for the human. The evidence collected, how- 
ever, does not support the theory that sporotrichosis is very 
frequently transmitted from horse to man in the United 
States. His opinion is that the Sporotrichum schenckii, Sporo- 
trichum beurmanni, the organisms from mules and horses in 
Madagascar, and the South American strains are all identical. 
He proposes the use of the term Sporotrichian schenckii-beur- 
mann for all. 
1 Loc. cit. 
