LOCAL NON-CONTAGIOUS DISEASES. 309 



turition is very liable to this condition. Sore teats in ewes when 

 not due to infection of aphtha maligna must be classed as 

 erythema. 



treatment. 



It is always good practice to administer a saline cathartic in 

 these cases. The parts can be dressed with a cooling dressing, 

 such as the White lotion, the prescription for which is to be 

 found in the last chapter but one of this work. ^Titrate of pot- 

 ash in one-half drachm doses can be given with advantage twice 

 daily in the feed. For chapped teats in ewes dressing with some 

 astringent mixture, such as 



Tannic acid 40 grains 



Glycerine 2 ounces 



will quickly effect a cure. 



CeUulttfs. 



This is inflammation of the cellular tissue underlying the 

 skin, which it also involves. It appears to be due to a derange- 

 ment of the circulation or may occur from blood-poisoning ; it also 

 occurs as an extension of erysipelas; in which case, however, its 

 origin would be specific. Abscesses form in the cellular tissue, 

 producing mortification and gangrene of the skin above them, 

 which sloughs off. This condition is very rare in sheep. 



Creattnciit. 



Consists in administering tonics, such as iron and arsenic, or 

 vegetable tonics, stich as gentian and quinine, feeding stimulat- 

 ing, easily digestible food, and adopting good hygienic measures 

 generally. 



prurigo. 



This is a condition of the skin chai'acterized by intense 

 itching, btit not accompanied by any eruption. It appears to be 

 due to an altered sensory condition of the periphery of the 



