"BLACK LEG," ''BLACK QUARTER" 475 



thicker than the bacillus of Anthrax. It is motile (seen 

 to move under the microscope), rounded at the end, 

 and generally contains a bright oval spore. The blood 

 and the spleen contains the anthrax bacilli in large 

 numbers. The bacilli of black leg do not Invade the 

 spleen nor the blood stream, but they are found in 

 large numbers In the exudate in the muscles and joints 

 of the locally affected parts, e.g., loins, hip, knee, hock, 

 shoulder, etc. 



Anthrax may affect any animal and at jany age. 

 Black Quarter always attacks the young, and is con- 

 fined to cattle and sheep. 



Dogs and cats lapping the blood or eating the 

 flesh of an anthrax subject, contract the disease and 

 die, but we have never known death to result from 

 lapping the blood and eating the flesh of a black leg 

 subject. 



Symptoms. — In the early stage of the disease, 

 there Is stiflhess and soon marked lameness, and the 

 inexperienced are apt to connect these with an injury ; 

 but in the course of a few hours the locally affected 

 part becomes swollen and crepitates (crackles) when 

 pressed with the fingers. This is a valuable symptom 

 and shows that mortification has set in. The other 

 symptoms are a quick small pulse, grinding of the 

 teeth, standing in the field by itself, dullness and un- 

 willingness to move from the spot. 



Treatment — Preventative. Draining the land and 

 the application of gas lime. Rock salt to lick. Feeding 

 the animals so as to maintain at all times fair con- 

 dition. Animals meagrely fed during winter, and 

 then by a rush of grass In spring, put on rapid con- 

 dition, are found in largest numbers to be the victims 

 of this disease. As a preventative some proprietors 

 have great faith in the Introduction of a seton into the 



