HUMAN AND ANIMAL VARIOLAS. 
475 
large sores. The pain was so acute during milking that the ani¬ 
mals cried and struggled, and had to be held. The milk was 
rather viscid and mixed with blood. The disease existed in all 
stages among the animals, from red spots to shedding crust and 
the formation of cicatrices. The outbreak had only occurred 
eight days previously. Thirty animals were yet unaffected, and 
these were isolated. The neighboring goat-farms were free from 
the malady, and Hansen could not account for its presence on 
this farm; but as it was only distant about half a mile (Norwe¬ 
gian) from the place where it prevailed the previous year, it might 
have been conveyed from there. In July all the goats on the 
farm had been infected ; at the commencement of August goat- 
pox had nearly disappeared, and during the entire period of the 
outbreak the cattle there and in the neighborhood had continued 
healthy. 
On August 17tli of the same year, Hansen was again called 
to attend upon goats at another place, not far from the last, where 
there were seventy-four goats, only thirteen of which were free 
from goat-pox. Twelve were severely affected, and three were so 
ill that they could not follow the others. The pocks on the udder, 
teats and thighs could be studied from the first or inflammatory 
stage to the crust-forming and cicatrising period, the cicatrices 
being distinguishable from ordinary scars by their light hue. The 
diminished secretion of milk and the emaciation were very marked, 
though the malady was not so fatal as in the previous year. On 
four neighboring farms the disease also appeared among the goats. 
When the disease once appeared in a flock it spread rapidly, 
and spared neither young or old, male or female; those goats 
giving the most milk having, however, the mildest attack, and the 
males having the pock-pustules most developed on the inside of 
the thighs. The contagium might have been conveyed to these 
farms by direct contact with the first infected farm, or, as was 
more probable, through the medium of servants and children. In 
the following month a number of other farms were visited by the 
goat-pox. Some of the goats had phlegmonous inflammation of 
the udder as a consequence of the disease, and had to be killed. 
In 1869 two herds of goats were attacked, but timely and 
