506 
REPORTS OF CASES. 
nance above the fluid line. It may be caused b}^ relaxation 
of the air sacs and diminished tension of the lung tissue. 
Finally, there is no royal road to physical diagnosis. Its 
problems must be worked out for oneself 
Originality is not claimed for this paper. The ideas are 
modified from personal experience, observation and mode of 
expression. My object has not been so much to teach as to 
refresh you in the matters which above all others combine 
to make the successful diagnostician. 
REPORTS OF CASES, 
DISEASE OF THE HEART. 
CASE II. 
Acute Endocarditis of the Horse—Recovery. 
Written for the American Veterinary Review by J. A. Couture, V.S., Quebec. 
Practitioners cannot be enough on their guard concerning 
the diagnosis of diseases of the lungs of all domestic animals, 
but specially horses and dogs, for they are very apt to take 
diseases of the heart for those of pulmonary organs. Acute 
endocarditis, hypertrophy, heart failure may easily be mis¬ 
taken for diseases of the lungs when the practitioner does 
not always bear in mind that such errors are liable to occur. 
This case is interesting because it illustrates the above re¬ 
marks and because of its severity and recovery. 
History .—The patient is a bay mare, half Clyde, 6 years, 
15 hands, 1,300 lbs., used on the bus of the Florence Hotel of 
this city. She had been bought at Montreal about 2 months 
ago, and it is very likely that she has done very little work 
) r et. Has always been in good health since she is here. She 
is worked very hard and very fast. On the 16th of August, 
1893, she works as usual and seems all right; the next morn¬ 
ing refused her feed and could hardly follow her mate on the 
bus. She is brought to the hospital at noon the 17th of Aug. 
Clinical examination. — Temp. 106respiration 20, pulse 75, 
small, quick. She does not look very sick; coughs a little ; 
visible mucous membranes are about normal, though the con¬ 
junctiva is rather yellowish. 
