416 The Diseases of Animals 
doses of two to four drams once daily, dissolved in a 
half pint of water. In about a week, a condition 
known as “iodism” is set up. This is shown by a dis- 
charge of mucus from the nose and eyes, and a scurfy 
condition of the skin, especially of the neck, as if bran 
were scattered at the roots of the hair. When iodism is 
well established, the medicine should be stopped. The 
tumor in most cases gradually disappears, and the ani- 
mal makes a good recovery. If one treatment is not 
Fig. 58. Lumpy jaw, Actinomycosis bovis. 
sufficient, it may be repeated in two weeks. At the 
same time that the iodide of potash is being given, a 
severe blister should be applied to the lump or tumor. 
In most eases, it is thought that the fungus grows ont- 
side the animal body on material that may be taken as 
food, and, entering a wound, is capable of growing and 
causing the disease. 
If the tumor is not large, or is not discharging so 
as to affect the general health, the flesh of the animal 
is not considered to be dangerous for food. 
