140 
M. J. MATTISON. 
sation. This loss of sensation is proved to be due to the action of the 
drug on the spinal cord, and not on the sensory nerves. The apparent 
paralysis is supposed to be due to the loss of sensation.”— (Ringer.) 
Sklarek finds that arsenic given to frogs and cats slows and weakens, 
and at last arrests the heart; and from Harley’s observations, it appears, 
that, after death, the heart of an animal poisoned with arsenic ceases to 
beat sooner than that of one destroyed by mechanical means.— (Ibid.) 
ENORMOUS FATTY TUMOR OF THE SIDES—REMOVAL—RECOVERY. 
By M. J. Mattison, N. J., Student. 
On the loth of April, 1877, I was called to see a black gelding, with 
the following history: Since 1862, the present owner has noticed on the 
left side a tumor of the size of a walnut, which did not seem to inter¬ 
fere with his health or his work, until 1876, when it began to grow so 
rapidly that, in less than a few months, the horse could not be used, 
and m the winter of that year his general condition began to fail, his 
appetite became capricious, etc., etc. 
On examination, the tumor was found to be situated in the left 
hypochondriac region ; it is quite hard, more or less painful, which is 
attributed to the excessive stretching of the parts, having more or less 
heat; it is irregular in shape, somewhat pedunculated, and measuring 
42 inches in circumference at the largest base, and 10 inches from base 
to apex. Being doubtful of the results, on account of the debilitated 
condition of the animal, I, however, recommended the removal of the 
tumor as the only means to restore the animal to his usefulness. 
Accordingly, the animal being prepared and thrown down, and 
placed under the influence of chloroform, the hairs were closely clipped 
ovei the whole tumor; an oval incision, 15 inches in length, was made 
over it; the flaps, being dissected and turned back, the whole tumor 
was severed from its cellular covering and removed. It contained in 
its centie quite a large amount of bloody serum, with some floating par¬ 
ticles of fat. The whole mass, formed of fat, weighed no less than 
thirty (o0) pounds. T he flaps were drawn together by sutures, and the 
wound diessed with carbolic solution. The animal being released, was 
placed in his stall, and a wide bandage put all round his body. 
April 14th—Animal is dull; appetite poor ; pulse feeble ; wound 
swollen some. 
