80 



FARM ARITHMETIC. 



Some fat is left in the skim milk whatever the method 



employed. This amount is. 



Shallow setting, 0.8 per cent. 



Deep setting, 0.2 per cent. 



Separator, 0.05 per cent. 



203. What is the loss of butter fat in 500 pounds of 

 skim milk when shallow setting is followed ? 



204. When deep setting is followed? 



Combined Churn and Butter Worker. 

 This is of creamery size and a kind frequently used in large butter factories. 



205. When the separator is used? 



206. What is the loss of butter during one year when 

 110 pounds of skim milk is daily produced, the separator 

 being used ? 



207. When deep setting cans are used ? 



208. When shallow setting pans or crocks are used? 



