?fi THE IMPROVED ART OF FARRIERY. 



result of previous disease through maltreatmeut is 

 Glanders : while on the other hand, many practitioners 

 will not admit it ; while not a few give their opinion 

 that " hereditary defect in the structural capacity of the 

 aerating organs may be regarded as a remote cause." 



Symptoms, — According as the system is more or 

 less debilitated, so is the appearance which the disease 

 assumes more or less unhealthy. The mucous mem- 

 brane has a paler colour than ordinarily ; although in 

 the first stage ulcers may not show themselves, while 

 at other times it becomes rapidly covered with them, 

 2ind these vary in colour as the disease increases ; when 

 of a reddish or violet hue the symptoms are more 

 healthy than those of a dirty yellow, which eventually 

 changes to a dull leaden cast. AYhen the ulceration 

 of the membrane is great, particles of it begin to drop 

 oiF, when blood is likewise discharged from the nostril, 

 in quantities varying according to the state of the 

 membrane. The pus, or matter discharged from the 

 nostrils, is of a deeper hue than naturally, not unlike 

 their glue or size, which dries and is found round the 

 edges of the nose, sometimes appearing only in one, at 

 other times affecting both nostrils. At first the ulcers 

 are not m ic h more than a spot just perceptible ; these 

 increase slowly or rapidly, according to the debility 

 of the system, sometimes being spread over the mem- 

 brane like small peas, and in other cases exhibiting 

 one mass of ulceration, which gradually deepens till 

 the internal surface of the frontal, maxillary and nasal 

 bones become affected, and the cartilages are ab- 

 sorbed. 



Blaine speaking of this disease, says : — 

 ** Sometimes the ulceration exists so high up the 

 nasal fossoe, that it is very difficult to discover ; yet 



