18 THE PRACTICE OF VETERINARY MEDICINE. 



astringent injections, which may be increased in strength as 

 their use continues. Acidum hydrochlor. pars i., aquie 

 pars. L. — a, is an excellent application to diseased bone. 

 Thickening of Mucous Membrane lining the Nose. 

 Causes. — This condition is caused by debility, poor keep- 

 ing, advancing age, and irritant or too powerful in- 

 jections. 



Symptoms. — A snuffling sound is heard during respiration, 

 and there is usually a very slight nasal discharge. 



Treatment. — Difficult; give tonics internally, and astringent 

 injections gradually increasing in strength. 



Nasal Tumours, or Polypi. — These growths are usually of 

 a fibrous character, and are characterized by a small pedicle 

 or neck, with a free expanded extremity. Nasal polypi are 

 of far more common occurrence in man than in our patients. 

 These growths may exist high up or low down, and accord- 

 ing to their situation are they visible or invisible. A 

 polypus may exist, being invisible for a considerable length 

 of time, and finally by increase in size become plainly 

 visible to the examiner. 



Causes. — These growths are often the result of irritation 

 of the mucous membrane lining the parts, and frequently 

 occur without any apparent cause for their presence. 



Sym]_otoms. — There is generally a discharge from the 

 nostril on the affected side, the discharge sometimes being 

 tinged with blood ; a snuffling sound may be heard during 

 respiration, the breathing being seriously interfered with at 

 times, even to such an extent as to cause the animal to fall 

 down. 



Treatment. — Seize the polypus close to the neck with the 

 forceps and twist it off; phlegmonous erysipelas may follow, 

 but remove it if necessary. 



Osseous Tumours. — Osseous tumours sometimes occur in 

 the nasal cavities. 



