DISEASES OF THE &KIN. 



Symptoms. J'ityviasis may affect tlic greater portion of the body, 

 though usually only certain parts are affected the ears, neck, ruiup, 

 etc. The skin becomes scurfy, the hairy coat filled with bran-like, 

 gray, or whitish scales. 



Treatment. Nutritious food, such as oil-cake meal, brau, ground oats, 

 and clean hay. In the spring it generally disappears after the animal 

 is turned out to pasture. When liee are present they should be 

 destroyed. 



ELEPHANTIASIS SCLERODERXA. 



This condition consist s in a chronic thickening of the skin, which may 

 affect one or more limbs, or involve the whole integument. It is char- 

 acterized by recurrent attacks of swelling of the skin and subcutane- 

 ous areolar tissue. After each attack the affected parts remain infil- 

 trated to a larger extent than before, until finally the skin may attain 

 a thickness of an inch, become wrinkled and fissured. This disease is 

 confined to hot climates. The predisposing cause is unknown. 



CEBElttA ANASARCA OF THE SKIN. 



This is a dropsical condition of the skin and subcutaneous areolar 

 tissue, characterized by pitting under pressure, the fingers leaving a 

 dent which remains a short time. 



Cause*. (Edema generally results from a weakened state of the sys- 

 tem, arising from previous disease. It may also be dependent upon a 

 functional derangement of the kidneys. Occasionally I have seen very 

 large o?dematous swellings beneath the lower jaw without being able 

 to discover the cause. 



Symptom*. Sudden painless swelling of a limb, udder, lower surface 

 of abdomen, or lower jaw becomes apparent. This may increase in 

 dimensions for several days, or may attain its maximum in less than 

 twenty-four hours. Unless complicated with some acute disease of a 

 specific character, there is not ranch if any constitutional disturbance. 

 The deep layer of the skin is infiltfated with serum, which gives it the 

 characteristic condition of pitting under pressure. 



Treatment. "When the cause can be ascertained and removed, we 

 will have a reasonable expectation of seeing the cudema disapjtear. 

 When no direct specific cause can bo discovered, and the animal is 

 debilitated, give general tonics. If, on the contrary, it is in good flesh, 

 give a purgative, followed by half an ounce of acetate of potash twice a 

 day. External applications are useless. 



(Edema may be distinguished from erysipelas or anthrax by the 

 absence of jiain and fever. 



DERMAPILOfS AND SEBACEOUS CYSTS WENS. 



A dermapikms cyst is formed by nn involution of the skin, with a 

 growth of hair on the inner wall of the sac. It may become imbedded 

 deeply in the tissue* mtlxmtancously, or may just ]>cnetrate the thick- 



