364 The Diseases of Animals 
of the disease, by making artificial cultures on agar or 
gelatine, or by inoculating a small animal. 
Treatment in a medicinal way is of little or no value. 
iA vaecine has been discovered that is very effective in 
preventing the disease. This is used extensively and 
successfully in the localities where the disease occurs, 
both in this country and in Europe. It can be pur- 
chased on the market. Great care should be taken to 
prevent the spread of the disease. All contaminated 
materials should be burned, quarters disinfected as rec- 
ommended for glanders, and a stringent quarantine 
maintained about infected localities. Infected pastures 
are to be avoided, as well as streams along which ani- 
mals have died. Persons coming in contact with animals 
affected with anthrax should be careful, as the disease 
is very dangerous. The mortality among animals 
during an outbreak is usually very high. Whenever a 
contagious disease occurs that attacks various domestic 
animals and causes death, anthrax should be suspected, 
and skilled advice should be called. 
BLACKLEG 
This disease is also called “black quarter” and 
“quarter ill,” and is sometimes described under the 
name of “symptomatic anthrax,” but it has no relation 
to true anthrax. Blackleg is a disease of young cattle, 
attacking them from calves a few weeks old to cattle two 
and sometimes three years old. The disorder is caused 
by a germ that the cattle get in pasture, or in food 
or drinking water. The disease is distributed over a 
