INVISIBLE INK. Boil half an ounce of gold litharge well pounded, with a little vinegar in a brass vessel for half an hour. Filter the liquid through paper, and preserve it in a bottle closely corked. This ink is to be used with a clean pen, and the writing when dry will become invisible. But if at any time it be washed over with the following mixture, it will instantly become black and legible. Put some quicklime and red orpiment in water, place some warm ashes under it for a whole day, filter the liquor, and cork it down. Whenever applied in the slightest degree, it will render the writing visible. IRISH BEEF. To twenty pounds of beef, put one ounce of allspice, a quarter of an ounce of mace, cinnamon, and nutmeg, and half an ounce each of pepper and saltpetre. Mix all together, and add some common salt. Put the meat into a salting pan, turn it every day, and rub it with the seasoning. After a month take out the bone, and boil the meat in the liquor it was pickled in, with a proper quantity of water. It may be stuffed with herbs, and eaten cold. IRISH PANCAKES. Beat eight yolks and four whites of eggs, strain them into a pint of cream, sweeten with sugar, and add a grated nutmeg. Stir three ounces of butter over the fire, and as it melts pour it to the cream, which should be warm when the eggs are put to it. Mix it smooth with nearly half a pint of flour, and fry the pancakes very thin; the first with a bit of butter, but not the others. Serve up several at a time, one upon another. IRISH STEW. Take five thick mutton chops, or two pounds off the neck or loin; four pounds of potatoes, peeled and divided; and half a pound of onions, peeled and sliced. Put a layer of potatoes at the bottom of a stewpan, then a couple of chops, and some of the onions, and so on till the pan is quite full. Add a small spoonful of white pepper, about one and a half of salt, and three quarters of a pint of broth or gravy. Cover all close down, so as to prevent the escape of steam, and let them stew two hours on a very slow fire. It must not be suffered to burn, nor be done too fast: a small slice of ham will be an agreeable addition. IRON MOULDS. Wet the injured part, rub on a little of the essential salt of lemons, and lay it on a hot waterplate. If the linen becomes dry, wet it and renew the process, observing that the plate is kept boiling hot. Much of the powder sold under the name of salt of lemons is a spurious preparation, and therefore it is necessary to dip the linen in a good deal of water, and to wash it as soon as the stain is removed, in order to prevent the part from being worn into holes by the acid. IRON POTS. To cure cracks or fissures in iron pots or pans, mix some finely sifted lime with whites of eggs well beaten, till reduced to a paste. Add some iron file dust, and apply the composition to the injured part, and it will soon become hard and fit for use.