LABORATORY COURSE IN FARM DAIRYING. 313 
Exercise No. 14. 
The determine effect of length of time cream is kept upon 
quality of butter. 
1. Skim a definite amount of cream and keep it in cold 
water one week. Then churn and note quality of butter. 
2. Skim about an equal quantity of cream on the same sepa- 
-rator. Have all conditions as near alike as possible in order 
to obtain same thickness of cream and otherwise comparative 
results. Ripen and churn this while the cream is fresh. 
3. Compare results with No. 1. 
Report REsvtts. 
Age of Cream. ae Quality of Butter. 
No. 1 
Old cream 
No. 2 
Fresh cream 
