=Treatment.=--Place fresh straw under animal; pouring water may produce sympathetic action; steady pressure of the hand, passed through the anus, on the fundus of the bladder may accomplish result; rub belly, or wash out sheath thoroughly if caused by dirt; 2 ounces sweet spirits of nitre in pint of water, or 1 pint linseed-oil and afterwards opium 1½ drachms, camphor 2½ drachms; repeat in 1 or 2 hours if necessary. If necessary to pass a catheter, the hand well oiled is passed up the sheath, the penis grasped and gently brought forward and held by an assistant; the catheter, well oiled, is then introduced and carefully pushed forward, and when it reaches the perinæum it should be guided forward and upwards by gentle pressure of the fingers. URINE, NON-RETENTION OF. =Symptoms.=--Besides excessive staling there is extreme thirst, dry skin, rough, staring coat, digestion usually out of order. =Treatment.=--Change diet; give 1 drachm iodide of potassium in 10 oz. water daily between meals. WARBLES. =Symptoms.=--Recent soft swellings or tumors arising from inflammation of the skin due to friction or undue pressure. =Treatment.=--Remove cause by not permitting the saddle or collar to touch it, and treat with salt water. Try to disperse, but if necessary to open it do so fully and touch with caustic. Then use cold-water dressings. WARTS. =Treatment.=--When small, remove by scraping surface and dressing with chloride of zinc; if large, remove with knife, and if necessary touch with hot iron. If without appreciable base, apply a paste of sulphur and sulphuric acid until it sloughs and then dress as an ordinary wound. WORMS. =Treatment.=--2 oz. turpentine in a pint of linseed-oil. The most effectual treatment is to administer daily for ten days or two weeks 2 drachms sulphate of iron and then give a dose of physic; change diet; tonic. WOUNDS. Simple wounds demand little attention other than cleanliness. _First._--Suppress hemorrhage by cold applications with pressure. If the bleeding be profuse, continuous, and of a bright red color, apply pressure to trunk of artery higher up leg (if leg is injured) than the wound, i.e., apply between wound and heart. Tie a flat web, cord, or handkerchief loosely around the leg, lay a pad formed of another handkerchief immediately above the artery, pass a stick through the loop on opposite side of leg to pad and turn it around so as to twist loop tightly. A plug of cotton, tow, sponge, or rag made into conical shape with point of cone toward bleeding orifice is also useful; remove clots of blood, apply plug and retain it by rags, tow, etc. In large, gaping wounds the finger or even the closed fist may be effectually employed until assistance arrives.