Use of the Butter-milk.
—The butter-milk in the churn is poured into a great cask, which in large dairies, as a general rule, is painted blue outside and white inside, with broad black iron hoops. It stands generally in the kitchen covered with a wooden lid. Butter-milk is used either in cooking, or for calves or swine, or is sold.
Dairymen in the vicinity of large cities have barrels with broad, bright brass hoops, in which they carry their butter-milk to market. It is put into them through a bung-hole, and when full the wooden bung is wound with linen and driven in. In these barrels the butter-milk is carried to Amsterdam, Rotterdam, etc., sometimes by boats on the canals, sometimes on wagons, and by yokes, and there sold to the grocers at wholesale, to be again sold out by them. The butter-milk thus brings an income by no means inconsiderable to well-managed dairies.