Milk Soup.—Four large potatoes, two leeks, two ounces of butter, three tablespoonfuls of crushed tapioca, one pint of milk. Put the potatoes and leeks, cut in four, in a saucepan, with two quarts of boiling water and two ounces of butter, a teaspoonful of salt, and pepper to taste. Boil an hour, rub through a colander, and return it to the saucepan, add the milk, sprinkle in the tapioca, and let it boil fifteen minutes.