SHEEP SCAB. 201 



assist the sheep in climbing up to the dripping- rack, which stands 

 at the sloping end. The vat may be sunk in the ground from six 

 to ten inches to save lifting. Each end of this vat should be sup- 

 ported by two small rods across the tank about four inches from 

 the top and six inches from the bottom. 



The dripping 1 rack should be at least three feet wide and 

 from twelve to twenty feet long. The bottom must be water-tight, 

 and there should be a narrow slat along each side, well nailed 

 down, to keep the drip from running off at the side before it 

 reaches the vat. Cleats should be nailed on the bottom, as shown 

 in the figure, open at the center and sloping slightly toward the 

 vat. One end of the dripping rack rests on the sloping end of the 

 vat and the other is supported by two legs, which should be enough 

 higher than the other end to cause a free flow back into the vat. 

 The dripping rack should have hurdles at the sides high enough 

 to keep sheep from jumping off, and there should also be a gate at 

 the farther end, which may be opened from time to time to let 

 sheep off the rack. There should also be placed at the farther end 

 of the rack a couple of planks with cleats so that sheep ma)- walk 

 down from the rack when they arc done dripping. 



A tight wagon box with side boards, and tilted so as to drain 

 into the vat, makes an excellent dripping rack for a small flock. 



A small V-shaped pen should be made of hurdles at the 

 square end of the vat and the sheep may then be crowded closely 

 toward the vat by means of a movable gate or hurdle at the wide 

 end. Two men, one on each side at the square end of the vat, can 

 easily lift the sheep, one by one, out of the pen into the vat and 

 then assist them to climb up to the dripping rack, where they stand 

 and drip while others are being dipped. When the rack is full, the 

 gate is opened and a few of those in front are let out. 



Vet. Studies— 13. 



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