Contagious Diseases and Their Suppression. '255 



pregnable to the germ. It is a good plan to test with 

 tuberculin all animals brought into the herd, especially 

 if the herd is made up of pure-bred stock. The tuber- 

 culin test, it should be remembered, is not infallible. 

 Thorough disinfection of stables should never be neg- 

 lected when tuberculosis has made its appearance; the 

 fact of its contagious nature must never be forgotten ; the 

 probable danger to human beings can best be limited by 

 the tuberculin test followed by Bang's method, pasteur- 

 ization of milk and thorough meat inspection. 



Glanders and farcy hold a somewhat similar position to 

 horses that tuberculosis does to cattle, although not as 

 common as that disease, yet is quite contagious, and in 

 the early stages hard to detect, in which case the use of 

 the malleiri test is useful to detect the earliest inroads of 

 the glanders germ, the bacillus mallei. This disease is 

 transmissible to man, in whom it manifests itself by loath- 

 some symptoms. The symptoms, when the disease is far 

 enough advanced, in horses are as follows: A discharge 

 from one or both nostrils, usually from the left one, of a 

 sticky, green, gluey nature, with a discharge from the 

 eyes and enlargement of the submaxillary gland found 

 beneath the jaws; in the local form, termed Farcy, little 

 lumps form on the limbs and body, which eventually 

 break and discharge pus. Treatment of this disease is 

 not advisable, in fact under the contagious diseases acts 

 of various states, slaughter is called for, and is the best 

 means so far of controlling the disease. 



Black-leg or quarter ill is a rather common disease af- 

 fecting young cattle, being of undoubted germ origin, but 

 fortunately, owing to the scientists, can be controlled in 



