428 MANAGEMENT AND FEEDING OF SHEEP 



moving it by dipping, as dipping so stirs up the sediment 

 that the separation is not complete. Then add water so 

 as to make loo gallons of the solution. 



When sheep are dipped in transit, as at the stock- 

 yards, a dip is wanted in some instances that will destroy 

 or remove scab at one dipping. Experience has shown 

 that the lime and sulphur dip comes the nearest among 

 dips to this requirement. To effectively destroy the scab 

 mite, some of the substance should remain for a time in 

 the wool. No dip has been found so well adapted to this 

 purpose as the lime and sulphur dip. In the early stages 

 of the disease eight pounds of lime will suffice for each 

 ICO gallons of the dip, but in advanced cases of scab with 

 thick and hard crusts 12 pounds may be necessary. It is 

 highly important when using this dip that the sediment 

 shall be kept separate from the ooze. 



Coal tar dips, now known under various names, are 

 essentially of two classes. These are known as creosote 

 and cresol dips respectively. They are in some instances 

 homemade, but in others they are proprietary. This class 

 of dips has gained in favor during recent years. 



Coal tar creosote dips contain coal tar, creosote or 

 coal tar oils and cresylic acid. These are made capable 

 of being emulsified by the admixture of resin soap, which 

 on the addition of water forms a mixture that is whitish 

 milky in color. These dips have proved very effective 

 in destroying scab mites and they also leave the wool in 

 a clean, soft and pliable condition, which is a strong point 

 in their favor. It is also claimed for them that they are 

 more effective as tick lice destroyers than some other dips. 

 It is also thought that they are more effective in destroy- 

 ing the tgg of the scab mite than sorrie other dips, but it 

 should be borne in mind that even should this prove true, 

 it will not preclude the necessity of a second dipping. 



Cresol dips are made from cresylic acid, which is a 

 coal tar product, and soap. In composition they are very 

 similar to the product known as lysol. \^^^en diluted 



