... pump-spout—their "cow with the wooden tail" (i. e., the pump-handle,) and so on. Awful stories are told about the London milkmen, who are said to manufacture a fearful kind of medicine to be sold as milk, the cream being made of a quantity of calf's brain beaten to a slime. Stories are told around New York, too, of a mysterious powder sold by druggists, which with water makes milk; but it is milk that must be used quickly, or it turns into a curious mess. But the worst adulteration of milk is to adulterate the old ... — The Humbugs of the World • P. T. Barnum