A PERI NEPHRITIC ABSCESS. 
113 
A PERINEPHRITIC ABSCESS. WITH HAEMORRHAGIC 
NEPHRITIS. 
By Robert W. Eleis, D. V. S., New York University (Vet. Dept.), 
with Report of Microscopical and Chemical Examina¬ 
tions, by Edward K. Dunham, M. D., New York Uni¬ 
versity Medical School (Dept, of Pathology). 
Was called on Sunday, Nov. 5, 1899, to see a chestnut geld¬ 
ing, eight years old, about fifteen and one-half hands high, 
weighing about ten hundred and fifty pounds. A “ mustang,” 
but of good form and disposition ; had been in service two 
years. This animal was reported as having been passing clots 
of blood by the urinary passages for a week previous to the 
date of my call, and I was shown a clot about the size of a 
hen’s egg, which he was said to have passed a short time before 
I arrived at the stable. This, I was informed, came after con¬ 
siderable forcing, and was followed by micturition. The horse’s 
general condition was seemingly all right, and, attributing the 
condition to an inflamed, congested, or possibly lacerated state 
of some portion of the mucous membrane, either of the urethra 
or the bladder, possibly due to calculus of the latter, and being 
in a very great hurry at the time, I prescribed 3 ss doses of 
sanmetto, every six hours, until I should return on Tuesday, the 
7th. On the day intervening between the 5th and 7th, a bottle of 
the horse’s urine was sent to my office, blood-stained, but con¬ 
taining no clots. 
When I saw the horse again on the 7th, however, I was 
shown a string of clotted blood, in one piece, eighteen inches 
long by perhaps one half an inch thick, tough enough to handle 
freely without breaking (I nailed them to a board and sat it 
upright to photograph them), and was again informed that the 
animal, after straining for a time, had passed this string, and 
then his urine. I then came to the conclusion, upon the 
strength of this information, and what he had told me the first 
day (what a pity we cannot get our information first-handed 
from the patient), that the difficulty undoubtedly lay above the 
