62 KENNEL DISEASES. 
As a rule, only two or three such applications will be required, and on suc- 
cessive days; but they should be kept up, once daily, as long as the maggots are 
being discharged. 
The parasite pentastoma tenioides sometimes invades the nose ; and while gen- 
erally it causes a severe form of coryza, it may be present in the sinuses of the 
forehead and excite grave brain symptoms and death without producing any 
noticeable nasal trouble. Such brain symptoms also usually bear a close resem- 
blance to the most pronounced signs of rabies, —as intense excitement, snap- 
ping and biting, and even paralysis of the lower jaw. 
Their essential treatment has been described in the discussion of Coryza. 
NASAL POLYPUS. 
A mucous or gelatinous polypus is a tumor which springs from some small 
point on the lining membrane of the nasal cavity, and grows with more or less 
rapidity until it fills the nasal passage and closes the opening. It is a soft and 
jelly-like mass of a grayish color, and mainly composed of mucin, the principal 
constituent of mucus. 
In extremely rare instances dogs are victims of these tumors; and when so 
the fact is readily perceived if they are of goodly size, for they-protrude from the 
nostrils, and especially in damp weather, when they absorb moisture and swell 
considerably. Small polypi, however, are not easily made out; but obstructed 
respiration through the nose, stuffiness, frequent sneezing, and a constant dis- 
charge of clear watery fluid from one nostril, would suggest their presence. 
Removal by means of wire snares is the proper treatment for nasal polypus 
in man; but an expert is required for the operation, which if not skilfully per- 
formed will seldom prove effectual, for unless the tumor is all removed it gener- 
ally reproduces itself. Such operation, however, and as successful, in a dog is 
almost wholly out of the question ; and the treatment advisable is to inject into 
the tumor, with a hypodermic syringe, a solution of tannin and water — twenty 
grains to a drachm — which will generally cause it to shrivel, dry up, and even- 
tually come away. 
