ARID AGRIC HI/TURK. 351 



only is it a destroyer of more human lives than 

 any other disease afflicting man, but it also in- 

 fests birds and almost all kinds of animals, from 

 the frog to the rhinoceros. Among domesti- 

 cated animals, the horse and the sheep are com- 

 paratively free from tubercle, while the cow 

 -ci'ins to be the natural host of bacillus tubercu- 

 losis. The supposed identity of human and bo- 

 vine tuberculosis has made the matter of more 

 serious import than would be the case if direct 

 financial loss to the cattle industry or swine rais- 

 ing was the only consideration. The health and 

 safety of ourselves and our families are con- 

 cerned and we should neither harbor diseased 

 animals nor use their products. The open dry 

 air and sunshine of the arid region is a natural 

 preventive of tiiberculosis, and our stock are not 

 apt to contract the disease at home unless we 

 bring infected animals from the East. The Tu- 

 berculin test is a sure diagnosis of this trouble 

 and no farmer should ever buy or use a milk cow 

 or an expensive breeding animal without first 

 it tested with tuberculin. 



INFECTIOUS This is comparatively a new disease of horses 



in the West. It has been called ''swamp fever," 

 "horse typhoid," "no-name disease/' etc. The 

 symptoms of this disease are not easily described 

 although they are known. The mucus mem- 

 brane of the mouth looks pallid; there mav be 



