Mites Injurious to Domestic Animals. 27 



If only a few animals have to be treated, cmde petroleum applied 

 ■with a brush, mop, or cloth is a valuable remedy. Wallows medi- 

 cated with crude petroleum, and dipping either in water and crude 



H'eM,, 



Fig. 9. 

 Sarcoptes scaUei, var. equi, 6 ■ — Ventral view, x 312. (Original.) 



petroleum or lime sulphur are much preferable, especially when 

 large numbers of pigs have to be treated. When the lime sulphur 

 dip is used, four or five dippings with an interval of five or six days 

 between them are necessary. For further details concerning mange 



