FOR BETTER CROPS IN THE SOUTH 



71 



The arsenic preparations are somewhat slow in their action, 

 so that if cattle be examined, say, forty-eight hours after dipping, 

 some ticks may be yet alive, but as a rule they have received a 

 fatal dose that causes their death. 



Dipping vat on IHC demonstration farm at 

 Brookhaven, Mississippi 



Special bulletins, giving further details about these matters, 

 and plans and specifications for building vats are issued by a 

 number of the Southern experiment stations. In a small booklet 

 of this kind, only the merest outline of this great problem can 

 be presented. 



