36 farmers' bulletin 113. 



in the wall, so they will not come in contact with the sheep or cause 

 annoyance to the men working along the vat 



The walls should be made G inches thick, constructed of concrete 

 mixed in the proportion of 1 part of cement, 2 parts sand, and -t 

 parts broken stone or gravel. This mixture is slushed into forms 

 l)roperly set, and when it approaches dryness the forms are removed 

 and the inside surface of the vat coated with pure cement mixed to 

 about the consistency of cream and applied with a brush. It is 

 important that this coating be well brushed in so as to fill all cavities 

 and form a smooth surface. Finishing coats of sand and cement 

 applied with a trowel after the forms have been removed are liable 

 to crack and scale off. 



WASHINGTON : GOVERNMENT PRINTING OFFICE : 19ir, 



