DISEASES OF THE OX AND SHEEP. 



205 



bucket containing a solution of carbolic acid, which is drawn 

 between the toes to and fro, and then rinsed. Then the 

 operator removes the diseased horn. The diseased parts of the 

 feet should then be well dressed with ointment of salicylic acid^ 

 or with ointment of boric acid, and then poulticed for at least a 

 day in linseed meal or oilcake poultice. At the expiration of 

 the twenty-four hours, the feet may be well washed with warm 

 water, and placed in a fresh poultice for another day, and then 

 again washed and dressed and poulticed. 



Some recommend the application of Stockholm tar, and where 

 no better substitute is readily to be procured, that simple sub- 

 stance may be found very useful, and especially in the summer 



Fig. 18. 

 The above picture represents the method of applying any suitable preparation 

 such as ointment of salicylic acid, by means of a bandage or rag, to the inter- 

 digital space. 



time. Others recommend that the diseased structures should^ 

 be corroded with the powerful acids, such as sulphuric acid or 

 nitric acid. Sulphurous Acid is really the best for this purpose. 

 In case any acid is applied, it is usual to do it by means of a 

 feather dipped in the fluid. The pustules are by this means 

 destroyed, and an eschar forms and falls off in about seven 

 days. It is advisable then to follow up the treatment by the 

 application of ointment of salicylic acid, or that of boric acid, 

 or with a mixture of sulphate of copper and Stockholm tar. 

 Sometimes, however, it may be necessary to repeat the applica- 

 tion of the sulphurous acid, or other acid, and then follow it up 

 with the ointment. 



Some prefer to use nitric acid at first, so as to burn way the 

 decayed and decaying tissues, and then to dress the surface 



