318 THE DISEASES AND DISOEPEES OF THE OX. 



suppuration are occupied by the process of desquamatioa, which 

 is delayed if suppuration has occurred. The crusts formed vary 

 in colour from brownish yellow to black, and are thicker when 

 thrown off from a pustule than from a vesicle. When the scabs 

 fall off, pits of different sizes are left. Even in mild cases a 

 month will generally elapse before health is restored. 



If a flock is found to be attacked with this disease, the first 

 thing to do is to separate the sheep which are infected from the 

 healthy individuals. The former should be slaughtered at once 

 and their carcases buried with antiseptic precautions, while the 

 latter should be taken as far away as may be practicable. They 

 should be put on dry grass land, or they may be supplied with 

 turnips and mangold-wurzel in moderate amount, together with 

 a little good cut hay, a small quantity of oats, and a little salt, 

 unless rock-salt is placed in their troughs. A dose of opening 

 medicine may be given, consisting of about two ounces of sul- 

 phate of magnesium, half a drachm of powdered aloes, half a 

 drachm of ginger-root, and eight fluid ounces of tepid water. 

 In the general way only a gentle aperient should be given. 



PosT-MoRTEM Changes in Cases of Sheep-Pox. — Exami- 

 nation after death showed that the skin was studded with papules, 

 most of which were close together in large patches, a section 

 showing that they extended beneath the skin, and looking like 

 a section of a wart. The cellular tissue beneath the skin was 

 infiltrated with blood, and purulent formations are often seen 

 beneath the confluent papillae ; the mucous membranes, especially 

 of the respiratory system, are chiefly affected, the conjunctival 

 and Schueiderian membranes and the mucous lining of the trachea 

 and bronchi were highly injected. The vessels of the lungs were 

 engorged, whereby death was caused. 



The skin may be red in one part and bluish black in another, 

 and everywhere the wool is very easily separated. Serum may 

 be present in the cellular tissue of the face and extremities. 

 There may be signs of ulceration in the conjunctiva and cornea. 



The pituitary membrane is often studded here and there with 

 yellowish spots or nodules, which no doubt are structures 

 similar to papules. 



These are not confined to the nasal portion of the respiratory 

 system, but also extend into the larynx, trachea, and bronchi. 

 Occasionally small ulcers are seen on the epiglottis and other 



