SCHAB6E FEOM GUTTURAL POUCHES. 549 



from the bursting of an abscess of the guttural pouch, as a 

 horse has lifted its head to the rack when suffering from 

 chronic strangles, and having shown considerable swelling of 

 the parotidean region on one or both sides. Sometimes, but 

 rarely, an opening occurs at the angle of the jaw as well as 

 into the pharynx. This double aperture is due to the enor- 

 mous size of the distended pouch, and is the direct result of 

 ulceration. Liquids which the animal drinks may thus drop 

 out at the throat. But where no pointing occurs, the pus 

 which accumulates finds its way occasionally through the 

 Eustachian opening, or its solid constituents become firmly 

 packed and rolled into bean-shaped bodies, of which large 

 quantities are found. I first saw an accumulation of this 

 consolidated pus in .a donkey, and have since met with it 

 frequently. I have had the purulent concretions for twelve 

 years in spirit, and they are as solid now as they were when 

 first immersed in the fluid. 



Symptoms. Chronic nasal discharge, due to pus in the 

 guttural pouches, is usually unilateral, and the submaxillary 

 glands are enlarged on the side from which the pus flows. I 

 know, from experience, that although the discharge may 

 occur only from one nostril, there may be disease in both 

 pouches, but, on the one side, the Eustachian orifice is plugged, 

 and nothing can escape. I once performed hyovertebrotomy 

 on a cart-horse on one side of the head, and cured him of a 

 chronic nasal discharge, but some months after the animal 

 died from ruptured diaphragm, and on examining the head. 

 I found the consolidated pus in the opposite pouch, from 

 which, during life, there had not been any escape of pus. 



The nasal discharge in this disease is always intermittent 

 The animal has usually a dry nose in the stable, especially if 

 fed entirely from the rack and manger. A profuse flow 

 occurs at work, and may be brought on at any time by 



