SMALL-POX IN SHEEP. 253 



The constitutional symptoms vary in severity according to 

 the character of the case as indicated by the eruption. There 

 is severe fever, intense thirst, bloodshot eyes, &c., in all cases 

 in which the papulse are numerous and running together, or 

 in other words, confluent. Discharge from the eyes and 

 nose, quick breathing, and tendency to blueness of the 

 mucous membranes, are conformable signs. The fcetor of 

 the cutaneous exhalations and of the expired air is often 

 intolerable; and in the latter stages of fatal cases, the 



Fig. 207. The pustular stage. 



animals are seen to pant with their tongues protruding out 

 of their mouth. In mild cases the fever disappears when the 

 eruption is well developed. 



The appearance of the dark circumscribed scabs is very 

 peculiar, and has been compared to that of black, round heads 

 of nails. It is owing to this that the French use the term 

 claveau, from clavus, a nail. 



The eruption of the face, purulent discharge from the eyes, 

 swollen nose, difficult breathing, fostor of exhalations and 

 expired air, with rapid breathing and accelerated pulse, are 

 signs observed in the affected members of a flock. 



