PARASITES AND PARASITIC DISEASES OF HORSES 55 



the hair to fall out. Oil dips are not recommended for common use 

 in dipping horses. 



Cottonseed oil and kerosene, equal parts, or kerosene one-half pint 

 to 1 pound of lard or crude petroleum is often applied by hand to hold 

 mange and lice in check when the weather is too cold for dipping. 



DIPPING VATS 



In those sections of the United States where there are a large num- 

 ber of horses to be dipped cattle-clipping vats usually are available, 

 and they can be utilized for dipping horses. (Fig. 33.) Plans of 

 cattle-dipping vats suitable for dipping horses are given in Farmers' 

 Bulletins 1017 and 1057. 



The so-called cage vats are sometimes used for dipping horses. 

 (Fig. 35.) In these vats the animal is placed in a movable cage and 

 lowered into the bath by means of a windlass or other mechanical 

 apparatus. (Fig. 36.) The operations are much slower than in the 

 longitudinal vat. 



Portable, galvanized-metal vats may be purchased, and they are 

 suitable for dipping a small number of animals. After digging a 

 trench and setting the vat so that the top is flush with the surface of 

 the ground, a chute and slide board should be provided as a means of 

 getting the horses into the vat. 



U. S. GOVERNMENT PRINTING OFFICE: 1942 



