402 
R. H. HARRISON. 
year or more. On September 30, 1883, the Doctor used him 
under the saddle and found that his breathing became very labori¬ 
ous and so exhausting that he could hardly get back to the stable. 
He was allowed to rest for a week when, apparently all right, 
the animal was again ridden and developed the same symptoms, 
but more severe, a cardiac palpitation being observed. 
Dr. Liautard was sent for, and ordered the horse to be sent to 
the hospital, where he could make an examination of the heart 
at his leisure. On admission to the hospital, he was hardly able 
to walk, staggering from side to side, similar to an animal suffer¬ 
ing with influenza with great muscular debility, great dyspnoea, 
pulse, full strong, bounding and regular; temperature, 101° Fall., 
Schneiderian membrane injected ; appetite greatly impaired. On 
physical examination, detected a hypertrophied condition of the 
heart. Inspection, negative; on palpitation increased cardiac 
impulse extending over a large portion of the chest. On percus¬ 
sion, an increased area of dulness extending to the right rib. On 
auscultation, the first sound of the heart dull and prolonged, and 
slightly increased in intensity ; second sound increased in inten¬ 
sity. He was placed in a dark stall, free from excitement, and 
ordered sedatives as the indications of the case required. All 
symptoms abated in a day or two, and apparently all right again 
until exercised, when the same symptoms appeared, but not so 
severe, and put under the same treatment; was then sent to the 
country with advice to owner to dispose of him to the best advan¬ 
tage, as he was unfit for the use of a physician and may possibly 
do slow work for some time to come. 
CANINE PATHOLOGY. 
By Prof. R. H. Harrison, D.V.S. 
Canine practice is rapidly becoming an important feature in 
the practice of veterinary medicine and surgery; and to those in¬ 
terested in the study it proves remunerative, and at the same 
time opens up a field of pathological research very interesting 
and instructive. 
Dogs in this country are more highly thought of, are better 
