156 DISEASES OF THE HORSE. 
the animal manifests difficulty in swallowing, and fre- 
quently considerable saliva collects in the mouth. 
Treatment.—Apply strong mustard made into a paste 
with vinegar, to the throat, and rub it well in; or, lin- 
seed oil two parts, with spirits of hartshorn one part, 
willanswer a good purpose. Give upon the tongue half 
a tea-spoonful of powdered saltpetre twice a day. 
STRANGLES. 
This is a more severe form of laryngitis, involving the 
glands of the throat, causing very great swelling, which 
often threatens suffocation ; “the respiration becomes dis- 
turbed, the breathing labortous, and can be heard. at a 
considerable distance; the animal sweats from his con- 
vulsive efforts to br cathe, and, if not relieved, dies a vio- 
lent death. Here the aid of the qualified veterinary 
surgeon is absolutely required, as there are few persons 
competent to perform the operation of tracheotomy, that 
is, opening the windpipe to admit air into the lungs: 
this, early performed, frequently saves the animal’s life. 
Treatment.—Poultice the throat well with flax-seed 
meal, steam the nostrils two or three times a day; and 
as soon as the swelling under the jaws becomes soft, 
it should be lanced. When relief is once obtained, the 
further treatment of these cases is the same as for ordi- 
nary sore-throat. 
INFLUENZA. 
Spring and fall are the seasons most productive of epi- 
demic catarrh. One year it assumes a mild form, the 
next, perhaps, a most malignant one. Influenzais known 
to horsemen under the common name of pink-eye dis- 
temper. 
Symptoms.—These vary very considerably in differ ent 
animals, The usual or ieading symptoms are: Shght 
