144 Agricultural Bacteriology. 



yellowish and contains minute yellow granules, often 

 called sulphur grains. These are masses of the causal 

 organism. 



Treatment. The disease is one that yields quite read- 

 ily to treatment. The most successful remedy is potas- 

 sium iodide which is given in water as a drench. The 

 dose is from 1.5 to 2.5 drams per day. The treatment 

 can not be maintained continuously for a long time as the 

 drug affects the animal unfavorably, causing the eyes to 

 run, the skin to become dry and rough, and a loss of 

 appetite. "When these troubles manifest themselves the 

 medicine must be stopped for a few days and then begun 

 again. Three to six weeks are required to effect a cure. 

 All animals do not respond to this treatment. Iodine 

 should never be given to milch cows as it is given off in 

 the milk. It also decreases the flow of milk or may stop 

 it entirely. It is also likely to cause abortion. 



Man does not acquire the disease directly from cattle 

 but is infected in the same manner as are cattle through 

 wounds in the mouth. The meat of animals that have 

 the disease in a localized form is fit for human food and 

 is passed by the inspectors in the slaughter-houses. 



GARGET. 



Inflammation of the udder is known by various names 

 as garget, mastitis or mammitis. The trouble is charac- 

 terized by the production of a fever and a swelling of 

 the gland with more or less change in the nature of the 

 milk. Catching cold in the udder or an injury are often 

 responsible for the trouble. Animals differ widely in 

 their susceptibility to udder troubles. With some, lying 

 on a cold concrete floor is sufficient to cause trouble. An 

 injury serves to introduce some of the bacteria of the skin 



