Take four quarts of new cream; it must be of the richest quality, and have no milk mixed with it. Put it into a preserving kettle, and simmer it gently over the fire; carefully taking off whatever scum may rise to the top, till nothing more appears. Then stir, gradually, into it four pounds of double-refined loaf-sugar that has been finely powdered and sifted. Let the cream and sugar boil briskly together half an hour; skimming it, if necessary, and afterwards stirring it as long as it continues on the fire. Put it into small bottles; and when it is cold, cork it, and secure the corks with melted rosin. This cream, if properly prepared, will keep perfectly good during a long sea voyage.