170 BUTTER-MAKING. 
are used to set up a quick and desirable fermentation in the 
cream. Conditions are usually such on the farm that it is not 
——) 
OF) 
Fic. 108.—Sanitary glass milk- 
bottle and cap for same. 
Fic. 107—The Davis swing-churn. 
convenient and practical to use a starter. In the summer the 
cream can be lifted out of the cold water the morning previous 
Fic. 109.—Skinner butter-worker. 
to churning, and it will sour during the day. In the evening, 
or when it has soured, it can be set back into the water to cool. 
