THK LATK EPIDEMIC DISK ASF, IN FRANCE 
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seldom seen to attack the paps and these other parts at the same 
time. In many cattle the teats were not at all diseased, or very 
slightly so. 
The vesicles of the teats are whitish, transparent, and crystal- 
line at their centre. According to the length of time that they 
have existed they take on a yellowish hue, and finally become 
almost red on the borders. 
A fact which almost always takes place will enable us to dis- 
cover the true character of the disease of the teats. A great number 
of cows of different troops have transmitted these pustules to the 
persons who usually milk them, and who have cuts or excoriations 
either on the hands or the arms ; but these have been persons 
that have not been vaccinated. Among them the pimples or 
vesicles have developed themselves even to the point of conflu- 
ence, and so numerous that these persons not only were unable 
to milk the cows, but were compelled to quit all other work. 
Among individuals thus vaccinated these sores are replaced by 
small pimples and a slight itching. 
These vesicles pass through the same course as those produced 
by the vaccine virus, from which it seems very little to differ. I 
think that they may consider it as being of the same character 
as cow-pox. 
When the pimples are rubbed, the act of milking causes 
them to bleed ; and the cow experiences a great deal of pain, and 
will not suffer herself to be milked. 
This state may be complicated in a very serious manner : it 
may happen that one or more of the teats may sadly increase in 
size, and that the mammary glands may become highly inflamed, 
especially if there are any pimples at the extremity of the teat 
which obstruct the passage of the milk : then the inflammation 
becomes very acute. It may terminate in several ways, which 
are not all equally favourable. 
1st. By resolution, which is very rare. It is necessary for this 
that the canal should not be entirely stopped, in order that by 
degrees it may allow the milk to escape. 
2d. By atrophy, or gradual wasting away: the milky func- 
tions are then destroyed. 
3d. By suppuration. In this case the milk remains in the 
gland, and is dissolved there, and purulent reservoirs are formed 
which are visible externally. Portions of the pap fall off, and the 
reservoir is closed ; but, very soon, it forms again, and pursues the 
same course again until the almost utter destruction of one or 
more of the teats, and even of the whole of the udder. These 
purulent reservoirs may thus follow each other for many months, 
or they may continue during life. 
