If you have no bones or bits of meat on hand to make stock with, a knuckle of beef or veal can be procured with little expense; or, if a rich soup is desired, several kinds of meat should be mixed. For instance: Take four pounds of the shin of beef, four pounds of the knuckle of veal, and a half-pound of good lean ham--any scraps of poultry, necks, wings, etc.--that may chance to be unused. Three onions, three carrots, one head of celery, a few chopped mushrooms, two or three fresh tomatoes, or what would be equal to them in canned tomatoes, if they can be obtained; just a shake of savory herbs and parsley, and, in cold weather, three turnips. In warm weather turnips will cause the stock to ferment. Add an ounce and a half of salt, one table-spoonful of sugar, twelve white peppercorns, six cloves, three small bits of mace, and four quarts of water. Line the nicely cleaned digester, after well buttering it, with the ham cut in thin, broad slices carefully trimmed from all the outer fat that may taste too strong of the smoke, or which is at all rusty. Then cut all the meat from the beef and veal into about three-inch pieces, and lay them over the ham. Set it on the stove, and when all is delicately and equally browned, put in the beef and veal bones, well cracked, the bits of poultry-trimmings, and pour over all four quarts of _cold_ water. When it comes to the boiling point, bring to the side of the stove or range, skim very carefully, adding now and then a little cold water, to stop rapid boiling. Let it simmer in this way till it is quite clear, and then put in all the vegetables and other ingredients, and keep it simmering over the stove five hours. Do not let it at any time come to a brisk boil, as that will waste the stock and injure the color. When done, strain through a fine hair-sieve or cloth into a large stone _stock-jar_, and cover up carefully till needed. Prepared in this way, a stock will keep in cool weather a long time, if kept covered closely from the air, by occasionally scalding, and is always on hand when you wish a rich soup. While it is cooking, in adding water to stop boiling, be sure that you add enough to supply that wasted in steam, so that when done and strained you will have four quarts of liquid. One quart will be sufficient for the stock for four rich soups. A less rich stock may be obtained by using less meat and seasoning, or by carefully saving the water in which fresh meat or fowls have been boiled, adding vegetables and seasoning to suit yourself. Let it simmer gently for six hours, skimming it carefully, and then strain and set aside for use.