The Ailments of Horses. \)1 



Tracheotomy. — This is an operation 

 performed upon the windpipe (trachea), 

 for the relief of difficult breathing or 

 threatened suffocation. A small tube is 

 inserted. ■ 



Inveterate roarers often wear a tube 

 throughout their lives, carrying on breath- 

 ing (quietly) through the artificial opening 

 thus produced. 



Again in strangles, sore throat, or any 

 swelling threatening to bring on suftbca- 

 tion, opening the windpipe becomes a 

 necessity. In this way, the " tide of 

 danger " may ebb away. 



Tuberculosis, or consumption. — Like 

 man and many other animals, the horse 

 is liable to suffer from consumption, 

 though we think much less frequently 

 than the ox. 



It is a germ disease, being caused by 

 the bacillus tuberculosis (Koch's bacillus). 

 It can be produced in the horse by in- 

 jecting the cultured germs beneath the 

 skin. 



The germs are of very minute size, 

 and contain in their interior little bright- 

 spots. These are surmised to be spores. 

 The spleen (melt) appears to participate 

 largely in this disease as it appears in 

 the horse, producing in this situation 

 tubercles or nodules containing the 

 germs, upon the finding of which the 

 diagnosis of the disease must rest. 



Progressive emaciation is the most 

 important symptom to the layman. 



" Tuberculin," injected beneath the 

 skin by means of a fine syringe, is another, 



