Mix a babe's food milk with its due proportion of sugar, and place the pitcher holding it in a deep plate - a soup-plate or pie-dish will do - and fill the plate with cold water. Take a piece of thin muslin, large enough to cover the whole pitcher and reach down all sides into the water. Have no cover on the pitcher, wet the cloth and cover the pitcher with it; put its ends into the water, and set the whole into a place where a draft of air will pass over it. A mother tried the plan, and during an exceedingly hot summer, through the most sultry days and nights of a long season, the milk never turned at all. The rationale of the thing is easy. The milk is not confined in a close vessel, or in danger of being tainted by nearness to other, perhaps not wholesome food; the thin gauze protects it, yet leaves it open; the draft of air keeps the temperature down by the constant evaporation, while the water is constantly sucked up by the cloth, acting like a wick in a lamp, to supply the moisture.