JAPAN BLACKING. Take three ounces of ivory black, two ounces of coarse sugar, one ounce of sulphuric acid, one ounce of muriatic acid, a lemon, a table-spoonful of sweet oil, and a pint of vinegar. First mix the ivory black and sweet oil together, then the lemon and sugar, with a little vinegar to qualify the blacking; then add both the acids, and mix them all well together. The sugar, oil, and vinegar prevent the acids from injuring the leather, and add to the lustre of the blacking.--A cheap method is to take two ounces of ivory black, an ounce and a half of brown sugar, and half a table-spoonful of sweet oil. Mix them well, and then gradually add half a pint of small beer.--Or take a quarter of a pound of ivory black, a quarter of a pound of moist sugar, a table-spoonful of flour, a piece of tallow about the size of a walnut, and a small piece of gum arabic. Make a paste of the flour, and whilst hot, put in the tallow, then the sugar, and afterwards mix the whole well together in a quart of water. JARGANEL PEARS. These may be preserved in a fine state, in the following manner. Pare them very thin, simmer in a thin syrup, and let them lie a day or two. Make the syrup richer, and simmer them again. Repeat this till they are clear; then drain, and dry them in the sun or a cool oven a very little time. They may also be kept in syrup, and dried as wanted, which makes them more moist and rich. JAUNDICE. The diet of persons affected with the jaundice ought to be light and cooling, consisting chiefly of ripe fruits, and mild vegetables. Many have been effectually cured, by living for several days on raw eggs. Buttermilk whey sweetened with honey, or an infusion of marshmallow roots, ought to constitute the whole of the patient's drink. Honey, anti-scorbutics, bitters, and blisters applied to the region of the liver, have all been found serviceable in the cure of the jaundice. JELLY FOR COLD FISH. Clean a maid, and put it into three quarts of water, with a calf's foot, or cow heel. Add a stick of horseradish, an onion, three blades of mace, some white pepper, a piece of lemon peel, and a good slice of lean gammon. Stew it to a jelly, and strain it off. When cold, remove every particle of fat, take it up from the sediment, and boil it with a glass of sherry, the whites of four or five eggs, and a piece of lemon. Boil without stirring; after a few minutes set it by to stand half an hour, and strain it through a bag or sieve, with a cloth in it. Cover the fish with it when cold. JERUSALEM ARTICHOKES. These must be taken up the moment they are boiled enough, or they will be too soft. They may be served plain, or with fricassee sauce.