300 THE VETERINARY DOCTOR. 
The tobacco 1s to be boiled in some water, and the oil, ash and soap 
dissolved in boiling water, then water is to be added until fifty gallons in 
all have been used. The preparation is to be applied at a temperature of 
about 70° F., each sheep being kept in the bath three minutes, the attend- 
ants meanwhile breaking up the scabs and rubbing the liquid into all parts 
of the skin. Upon taking the sheep out, squeeze the liquid out of the wool 
so it will run back into the bath. It may be necessary to repeat the appli- 
cation two or three times. The amount given above will be enough to 
treat fifty sheep once. In persistent cases it will be necessary to shear the 
A Bap Cask or SCAB. 
sheep. In such instances, or whenever the wool is very short, some oily 
application is advised, since it will not so readily wash off, and the author 
quoted recommends one part of oil of tar to forty parts of castor oil. Avoid 
applications which contain mercury, arsenic and other poisonous ingredients. 
Provide clean, dry quarters, without crowding, fresh air and nourishing 
food, such particulars being essential in treatment and very serviceable in 
preventing the disorder in animals not already suffering from scab. To 
eradicate all traces of the malady, observe the directions upon cleansing the 
infested places and objects which are recommended for Mange in the Horse, 
LICE AND TICKS. 
These are very troublesome to sheep. Ticks most often infest the 
fleeces of ewes in the spring, and, passing to the lambs, make them weak 
by drawing their blood; and they may remain in a fleece alive for a year 
after it is clipped. 
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