PATHOLOGY. 105 



As this disease is considered as being infectious, 

 it will be necefsary to keep the horse in a separate 

 stable until the cure is completed. 



Strangles. 



THE Strangles is an inflammation and enlarge- 

 ment of the thyroide and maxillary glands, com- 

 monly attacking horses when they are from three 

 to five years old, seldom later. It is supposed to 

 be infectious ; but this supposition is, in all pro- 

 bability, owing to the number of young horses af- 

 fected at nearly the same time. 



The causes which have a tendency to produce 

 inflammation of these glands are, any sudden 

 change of temperature, high feeding, and violent 

 exercise. These soon produce an increased action 

 of the heart and arteries, particularly in young 

 horses : by this means, the glands are stimulated, 

 and their action increased to such a degree as to pro- 

 duce obstruction, inflammation, &c. : in this disease 

 we always find the mucous membranes affected. 



The common symptoms attending strangles are, 

 an enlargement of the glands under the jaw, and 

 sometimes it extends to the glands of the neck ; it 

 then becomes more dangerous. These cause a 



