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The Cure of Sheep Scab. 
and yet, if proper precautions were taken and a rational treatment 
followed, this disease could soon be completely eradicated. 
Early Symptoms , — Attention to the disease is first attracted by 
the infected sheep scratching, biting, and rubbing themselves. The 
coats of the animals look rough, taggy, and felted. The itching is 
always most violent when the sheep have been heated by driving 
or warming in a stable. 
Mature Female Acarus, from a Sheep AFPErTED with Scar. 
(Drawn with tlie camera. Magnifieit 100 diameters.) 
Pathology . — By separating the wool and examining a recently 
infected spot, there can be seen some minute elevations, which differ 
from the surrounding skin in being slightly whiter or yellower, and 
which have been produced by the bites of the pests. The insects 
themselves can be found among the hairs at but little distance from 
the bites. As time passes, and the insects multiply in number, 
these elevations become more and more numerous, and closer and 
closer together, until they finally unite over a considerable extent. 
