DISEASES OF THE LEGS AND FEET. 117 



matters right by catching hold of the leg at the pastern and 

 pulling it forward, with a view of snapping the patella into its 

 proper place. A veterinary surgeon should be called, if the 

 dislocation cannot be righted immediately. 



Lyinphangritis. — This disease, which is also known as 

 '■ weed," occurs, as a rule, only in heavy horses, and is usually 

 confined to the hind legs. It consists in the limb becoming 

 greatly swollen, owing to inflammation, of the lymphatic 

 glands. It is often caused by the horse standing idle in the 

 stable for some time, and through over-feeding on corn. Treat- 

 ment consists in reducing the food allowance, and giving a 

 purgative, preferably in the form of an aloetic ball, which 

 can be obtained from any country chemist. Plenty of laxa- 

 tive food should be provided. Exercise must not be 

 given until all symptoms of inflammation have dis- 

 appeared. The limb should be frequently fomented 

 with hot water, and be bathed three times a day with the fol- 

 lowing lotion : Tincture of arnica three parts, acetate of lead 

 one part, and water eight parts. The patient must be kept 

 warm, if necessary, by clothing. After two days from the 

 commencement of the swelling, an ounce of nitre dissolved in 

 water should be administered. In bad cases, the advice of a 

 veterinary surgeon is necessary. 



Thrush. — This complaint consists m a diseased condition 

 of tlie inner portion of the frog. The symptoms are a bad- 

 smelling discharge from the cleft of the frog, and decomposi- 

 tion of the horn of the latter. The causes of thrush are want 

 of frog pressure, combined witli the effects of wet or dirty 

 litter. Mild cases may be cured simply by smearing some 

 Stockholm tar into the clefi: of the frog once a day for a week 

 or less. Instead of tar, some powdered alum may be rammed 

 into the cleft. In bad cases, all loose bits of horn about the 

 frog should be pared away, and the following ointment applied 

 to the inside of the cleft: one ounce sulphate of copper (blue 

 stone), one ounce lard, and two ounces Stockholm tar. Plenty 

 of frog pressure is also necessary, in order to eft'ect a cur© and 



