12 Georgia State College of Agriculture 



It must be borne in mind that arsenic is a deadly corrosive poison 

 and great care must be exercised in its handling and use. 



Construction of Dipping Vat. 



The location must be suitable for the erection of pens for holding 

 cattle before dipping and for dripping pen or chute for retaining 

 cattle after dipping so as to allow the solution to drain off the cattle 

 and back into the vat or other receptacle. 



Excavation. This must be made a foot longer and wider than 

 inside dimensions of vat and of the same shape. Sides should be 

 firm. 



Forms. The formes should be built of inch boards and 2x4 

 braces. The sides and the end walls should be 8 inches higher than 

 surrounding ground. 



Concrete. This should be made of Portland cement 1 part, sand 

 2y 2 parts and broken rock or gravel 5 parts, by measure. The 

 sand should be sharp and clean and the rock or gravel from 14 inch 

 to 1 inch in diameter. 



Mix together the sand and cement dry and thoroughly wet the 

 rock. Apply water to sand and cement mixture until a mortar is 

 produced and then mix all together by shoveling the stone on to the 

 mortar. Continue the mixing until all the stone is well coated with 

 mortar. If possible, the filling in of concrete should be done at 

 one operation, the bottom and incline being deposited first. 



The forms must not be removed until the concrete is set, which 

 takes 24 to 48 hours. 



Finishing Coat. Wet the surfaces thoroughly and apply a one- 

 half inch coating of material consisting of 1 part cement and 2 

 parts sand. Trowel smooth. 



BILL OF MATERIALS FOR VAT, DRIPPING PEN, AND CHUTE. 



Lumher for Forms. 



8 pieces 1 by 12 inches by 14 feet long. 

 13 pieces 1 by 12 inches by 12 feet long. 

 2 pieces 1 by 12 inches by 9 feet long. 

 2 pieces 1 by 12 inches by 6 feet long. 

 2 pieces 1 by 12 inches by 4 feet long. 

 8 pieces 2 by 4 inches by 8 feet long. 

 2 pieces 2 by 4 inches by 7 feet long. 

 2 pieces 2 by 4 inches by 6 feet long. 

 2 pieces 2 by 4 inches by 4 feet long. 

 2 pieces 2 by 4 inches by 2 feet long. 



7 pieces 1 by 6 inches by 12 feet longforcrosspiecesforiniide 

 of forms. 



