146 
ON THE INFLUENZA IN HORSES. 
our profession owes to the agricultural community in their hour of 
need, and at a time when the interests of the agriculturist and the. 
veterinary surgeon are rapidly becoming more blended. 
f remain, dear Sir, your’s, &c. 
Thos. Mayer, sen., V.S. 
ON THE INFLUENZA IN HORSES. 
By Mr. W. Haycock, V.S., Huddersfield . 
ALTHOUGH I have not at any previous period offered a commu- 
nication to your Journal, I yet venture to send the following re- 
marks upon “ influenza,” a disease at present very prevalent among 
horses; and which, from what I learn by The Veterinarian, 
has lately engaged the argumentative powers of your “ Associa- 
tion.” 
If we take into due consideration every symptom under which 
influenza in horses is presented, we shall find that it naturally di- 
vides itself into two very distinct states or conditions — a fact which 
does not appear to have received sufficient notice by those who 
have spoken or written upon the subject. This I conceive to be, 
in a great measure, the cause of the wide difference in opinion 
that appears to exist among veterinarians respecting its medical 
treatment. 
Mr. Stewart, late of the Andersonian University, was, I believe, 
the first to suggest a distinction. He divides the disease into two 
states, and describes them under the respective heads of “ cephalic 
and thoracic influenza.” This division does not appear sufficiently 
comprehensive, at least if we apply the terms to the influenza 
which prevails at present. I propose, therefore, to substitute the 
following; viz., oedematic and bronchial or nervous influenza, as 
being more definite and expressive. 
An animal may be affected with the disease in either state sepa- 
rately, or with both combined ; or one state may terminate, and 
the other immediately succeed. I will therefore describe the symp- 
toms attendant upon each condition as I have found them to exist 
in my own practice ; and conclude with laying before you the mode 
of treatment I have pursued, and the results which have followed. 
Oedematic influenza is characterized by staring of the coat ; the 
eyelids greatly swollen — in many instances so extremely bad that 
the animal appears totally blind — accompanied by a copious secre- 
tion of tears, or of a thick acrid matter of a yellowish colour. The 
