AMERICAN VETERINARY COLLEGE. 367 
MELANOTIC TUMOR OF THE TAIL IN A BAY HORSE. 
By the Same. 
A bay gelding, 15-1 hands, and about 17 years of age, was 
brought to the free clinic on Sept. 26th, for treatment of a “lump 
on the tail.” This, the owner stated, had twice been removed; 
once by excision with the knife, and again by caustics, and each 
time had again appeared. On examination it was found to be 
one of the rare case of melanosis in a bay horse, being situated 
laterally near the base of the tail, somewhat round, about two 
and one-half inches in diameter and without pedicle. None others 
could be found externally on any other portion of the body. At 
the owner’s desire, it was determined to remove the tumor, but 
without much hope of permanent eradication. An elastic ligature 
was applied at its base, which, at the end of a few days, had cut 
through, leaving a wound about two inches in diameter. This 
was cauterized with nitrate of silver and simple dressing applied. 
At the next clinic day a small portion of sloughing tissue was re¬ 
moved from the wound, leaving a healthy granulating surface. 
The animal has attended every clinic day since then, the granula¬ 
tions being controlled by nitrate of silver and dressed with oakum, 
saturated with carbolic solution and bandage. At the pres¬ 
ent time a small, healthy granualting surface remains, and con¬ 
trary to expectation, there is every indication of a permanent 
disappearance of the trouble. 
In the removal of similar small tumors, such as epithelioma, 
or extra scrotal champignon, we can commend the use of the elas¬ 
tic ligature, which often seems to have a marked result in its deep 
action, and where possible, permanent relief often obtained. 
The principal interest in this case is the fact of the presence 
of this kind of tumor (melanotic) in a bay horse, where they are 
not commonly found. 
ENTROPION IN A DOG. 
By the Same. 
An English mastiff suffering with this trouble was brought to 
the hospital on Oct. 4th, for treatment. About one-third of each 
