DISEASES OF THE HOG. 99 
three times a day with hot water, with a piece of 
camphor in it. Binding hot cloths around the 
throat is useful. 
LARYNGITIS AND PHARYNGITIS (SORE THROAT.) 
This is a very common disease in the pig, and is 
characterized by cough, difficulty in swallowing 
liquids, and rough breathing. : 
Causes: The causes of sore throat are changes 
from heat to cold or from a cold place to one that 
is hot and badly ventilated, lying in cold, wet straw 
and changes in the atmosphere. Pigs that have 
been driven a distance and are over-heated and cool 
off suddenly are liable to get sore throat. 
Symptoms: There will be a hard, dry cough, 
difficulty in swallowing food and water, impaired 
appetite, froth from the mouth and more or less 
roughness in the breathing; the cough is often spas- 
modic and distressing; there is no external swelling 
and it is easily distinguished from quinsy on this 
account. In bad cases there will be considerable 
fever with a fast full pulse and some elevation of 
the temperature; the skin will be hot and dry and 
the hair rough; the pig will lie most of the time un- 
less the cough is very severe, when it will stand up 
until the fit of coughing passes. This disease is 
usually manageable, though in a few instances, 
when very intense or attended with an unusual 
- degree of serous effusionintothesubmucous tissue, 
it becomes very alarming and even causes death. 
Its,great danger under these circumstances is ow- 
ing to the narrowness of the passage through the 
