If foot-lameness exists without apparent cause, animal points fore foot without resting hind quarters, wears away toe, goes up hill sounder than he goes down, feet, as a rule, contracted and hotter than usual, we may suspect navicular disease. =Treatment.=--Rest; allow frog to bear on ground; cold poultices, or stand in cold water or on clay tempered with salt and water; laxative food. In a week blister around coronet and in hollow of heel. This disease can only be alleviated, not cured. OPHTHALMIA (SORE EYES). =Symptoms.=--May arise from undue exposure to sun, cold, wind, dust, etc. Foreign substances usually lodge under the upper eyelid. The eyelids are swollen, tears running down face, with intolerance of light. =Treatment.=--Bathe with warm water; dress daily with tincture of opium 2 drams, sulphate of zinc 4 grs., or alum 6 grs. and water 1 oz., and shade eyes with wide bandage suspended from brow-band. Keep in dark stable and avoid using in bright sunlight. If feverish, give bran mashes. Bathe with cold water if unable to obtain warm. PARALYSIS OF HIND QUARTERS. =Symptoms.=--Partial or complete loss of voluntary motion of the parts, usually brought on by high feeding and no exercise. =Treatment.=--1 dram powdered nux vomica twice a day; good nursing; easily digested food; dose of Glauber salts. PHARYNGITIS (SORE THROAT). =Treatment.=--Rub the throat with turpentine liniment (equal parts of turpentine and olive oil). PLEURISY. =Symptoms.=--One side of chest generally affected, especially at first. When independent of pneumonia it generally begins suddenly with shivering; breathing quick and shallow; nostrils dilated; respiration short and quick; regular elevated line or ridge along the lower border of the ribs from the point of the hip to the lower part of the sternum; fever; short, dry, painful cough; sighing grunt occasionally or when turned around; in early stages if ear be applied to chest a sound like rubbing dry hands together will be heard; pulse hard and wiry, at first about 60, runs to 80, and in bad cases to 100 and over, but not so full and oppressed as in pneumonia; restless and looks at side with anxious eye of pain; paws the ground; does not lie down, but attempts to do so; temperature of extremities irregular. Portions may be cold, others hot. In the second stage the friction sound in chest disappears; cough loose and moist; extremities for a time warm; pulse less frequent, smaller, and weaker; breathing less labored; membrane of nostril loses redness.