206 DISEASES DUE TO INTERNAL PAHASITES. 



Co Operate 



It is necessary to make a careful examination of tbe skull, 

 and where the cyst is located close to the surface a softening of 

 the bone will be noticeable. By trephining the skull at this 

 point the parasite can be discovered and removed, also an oper- 

 ation termed wiring has been performed. This was the method 

 first employed by a Scottish shepherd by the name of Hogg, 

 and in his hands was oftentimes successful. It consists in feeling 

 for the soft spot in the skull and placing the thumb of one hand 

 firmly on it, while with the other hand a thin wire or knitting 

 needle is pushed up the nostril nearest the afEected part till the 

 point of the wire is felt und-er the thumb, so perforating the 

 cyst and permitting the escape of its contents. Should this not 

 cause inflammation of the brain, and no more cysts be present, 

 the sheep will have a good chance to entirely recover. 



To treat the sheep-dogs and to ensure their freediom from 

 the cause of all this trouble it is necessary to administer vermi- 

 cides to them about every four months. 



The dog to be treated should not be fed for at least twelve 

 hours before receiving the medicine, but it can be allowed all the 

 Avater it desires. The evening before administering the worm 

 medicine a dose of castor oil is advisable — for large dogs the dose 

 is three tablespoonfuls. Medium sizes one to two tablespoon- 

 fuls. Then in the morning 



Take. Kamala 3 drachms 



Gruel 1 ounce 



Mix. Give as one dose. Where the dog is medium sized, 

 two drachms of kamala will be sufficient. This is a very effectual 

 taeniacide. It is not necessary to follow up its administration 

 with a cathartic on account of its laxative properties. 



