4 
FATTY DEGENERATION OF THE KIDNEYS 
OF A HORSE. 
By the Same. 
The, morbid specimens which are sent for examination 
were removed from an aged grey cart-geldings to which our 
attention was directed in consequence of an attack of influ- 
enza. The usual treatment was pursued with success as far 
as the catarrhal disease was concerned, but the animal, 
after recovery from the acute attack, did not make much 
progress. At times he would refuse all food, and stand mop- 
ing in a corner of his box ; there was much debility present, 
and it was particularly noticed that the circulation was 
feeble. 
While under our care the horse did not show any symp- 
toms of disease of the urinary organs, and from recent in- 
quiries we learn that the urine was passed freely, and did 
not present any peculiar appearance. Occasionally the fluid 
was “thick/’ but no notice was taken of this, which is so 
common a character of the urine of the horse. The animal 
died on November 26th, ten days after the commencement 
of the treatment for the attack of influenza. 
Post-mortem examination . — No abnormal condition of the 
internal organs was detected until the kidneys were reached, 
when it was immediately apparent that those organs were 
the seat of important structural change ; the fat which 
should surround them had been in great part replaced by 
fibrous exudation ; the right kidney was much enlarged, 
weighing 9 lbs., and both the cortical and medullary substances 
were diseased. The posterior two thirds of the right kidney 
was nearly black in colour, from accumulation of blood in the 
vessels. 
The left kidney was but slightly affected ; its colour was 
normal, and its weight 3 lbs. The bladder was normal, and 
at the time of the examination was full of urine, but the 
slaughterman unfortunately cut into it and lost the whole of 
the urine, so that we were unable to obtain a specimen for 
examination. 
[A microscopic examination of the kidneys sent to us by 
Messrs. Go wing and Son showed the disease to be fatty dege- 
neration. The uriniferous tubes of the right kidney were 
almost all of them filled with granular fat, and the left 
kidney gave evidence of a considerable advance of the 
