ALPHABETICAL SUMMARY. 491 
MEGRIMS. 
Cause.—Unknown. 
Symptoms.—The horse suddenly stops; shakes the head; strange 
stubbornness may be exhibited, followed by a desire to run into danger- 
ous places. Then ensues insensibility, accompanied by convulsions. 
Treatment.—Throw up on the first fit. Give a long rest, and try to 
amend the constitution. 
MELANOSIS. 
Cause.—Unknown. The disease only attacks gray horses which have 
become white. 
Symptoms.—It appears as a lump of uncertain form, size, and situa- 
tion. The swelling, if cut into, discloses a cartilaginous structure, dotted 
here and there with black spots. Do not use the knife unless the swell- 
ing impede the usefulness, or should be peculiarly well placed for opera- 
tion. Feel the tail. A pimple on the dock is an almost certain sign of 
melanosis, which disease affects the internal organ even more virulently 
than it attacks the external parts. As melanosis proceeds, all spirit 
departs, and the animal is at length destroyed as utterly useless. 
Treatment.—Let the tumor alone. Forbid all use of the curry- 
comb. Dress very long and very gently with the brush only. Twice a 
week anoint the body with animal glycerin, one part; rose-water, two 
parts. 
NASAL GLEET. 
Causes.—Decayed molar tooth; kicks from other horses; injuries to 
the frontal bones. 
Symptoms.—Distortion of the face; partial enlargement and soften- 
ing of the facial bones; irregular discharge of fetid pus from one nostril. 
The discharge is increased, or brought down by feeding off the ground, 
or by trotting fast. 
Treatment.—Surgical operation, with injection of a weak solution of 
chloride of zinc. Also give daily a ball composed of balsam of copaiba, 
half an ounce; powdered cantharides, four grains; cubebs, a sufficiency. 
If the foregoing should affect the urinary system, change it for half- 
drachm doses of extract of belladonna, dissolved in a wineglass of 
water. Give these every fourth day, and on such occasions repeat the 
belladonna every hour, until the appetite has been destroyed. 
