846 
REPORTS OF CASES. 
pletely displaced at the fetlock joint, the end of the metacarpal 
protruding. A man with a pistol was sent for. ^ Before he ar¬ 
rived, however, the horse had tried his weight on it, with the 
result that the displacement was reduced. I could perceive no 
crepitus ; could flex the joint; had some synovitis. I suspected 
some severe complication, as careful soaking in hot corrosive 
failed to act at all. Patient ate well, got up and down, but with 
difficulty (building too weak to support slings). As trouble did 
not respond to treatment, killed him. He showed transverse 
fracture of metacarpus into joint. Can’t understand now why I 
had not detected crepitus. Should say that personally I did not 
see the protruding bone, nor post-mortem. 
MELANOSIS. 
By W. F. Derr, V. S., Wooster, Ohio. 
^ On May 29, 1897, I was consulted about a grey mare, with 
an enlargement on the middle of the right shoulder, said by the 
owner to be the result of the collar, from hard plowing during 
the fall of 1896. 
The animal was a grey Norman, eight years old; the en¬ 
largement was non-inflammatory and painless to the touch ; 
could do work of any kind without any inconvenience. At 
this time the enlargement was about the size of a base-ball, but 
more flattened. The owner informed me that if she rested a week 
it would be reduced in size considerably. My friend. Dr. J. D. 
Fair, being at my place on a visit at the time, advised a seton 
drawn through it and saturated with tincture of cantharides, 
which was done. 
On June 5 I had a telephone from the owner that the en¬ 
largement was terribly swollen, extending down over the pec¬ 
toral region and back to the elbow, with no discharge from the 
seton whatever. I advised some internal treatment, with warm 
fomentations over the parts and later a warm poultice to be 
placed over the same. On the 8th I made a visit to the case. 
The enlargement was very unsightly, the tumefaction extend¬ 
ing along the abdomen to the mammae, with a great deal of 
constitutional disturbance, the animal being down and unable 
to rise without assistance. After getting her on her feet I made 
an incision into the tumor to the depth of about four or five 
inches, from which escaped a very black and tarry fluid, and from 
the character of it I made up my-mind that I had a case , of 
melanosis, and so informed the owner, and gave an unfavorable 
prognosis. After due consideration the owner insisted on my 
'4i» • 
