DISEASES OF HORSES AND CATTLE. 269 



and when cool enough to apply sprinkle on a tea- 

 spoonful of acetate of lead. Remove it twice daily. 

 After the surrounding horn is softened and the 

 foot cleaned by the poultice, then remove all loose 

 horn, and also pare the frog down to the quick, 

 and after bleeding has ceased clean and dry the 

 part well. Take a piece of smooth stick and rub on 

 a little finely powdered bichloride of mercury; use 

 no more at once than would lie on a dime, as there 

 is danger of it becoming absorbed, but no danger 

 from using that quantity. Cover the part with dry 

 cotton batting or oakum and put on a boot or bag. 

 Do not disturb this until the end of the second day, 

 and if it is still dry and the surface hard, let it 

 alone for another day or two. When the crust 

 that has formed by the mercury comes off, apply a 

 little more, and so on until it appears firm and 

 healthy. This is the best thing to use in the ma- 

 jority of cases, but when the discharge keeps up, 

 which it will sometimes do, use a liquid caustic, 

 such as terchloride of antimony or diluted nitric 

 acid. Put on sufficient to cover all the diseased 

 surface. Protect the sore as before, and repeat the 

 caustic once a day if necessary. If there is any 

 hard horn pressing on the sore part remove it. A 

 shoe should be put on, as it will protect the sore. 

 After the unhealthy parts have been removed I 

 find that to sprinkle calomel over the surface once 

 every third day is a good thing. Some prefer tar, 

 with a little sulphuric acid, two parts of tar and 

 one of acid. Dip cotton batting or oakum into it 

 and spread over the surface, and keep in place by 



