The management of the fire is a point of primary importance in roasting. A radiant fire throughout the operation is absolutely necessary to insure a good result. When the article to be dressed is thin and delicate, the fire may be small; but when the joint is large, the fire must fill the grate. Meat must never be put down before a hollow or exhausted fire, which may soon want recruiting; on the other hand, if the heat of the fire becomes too fierce, the meat must be removed to a considerable distance till it is somewhat abated. Some cooks always fail in their roasts, though they succeed in nearly everything else. A French writer on the culinary art says that anybody can learn how to cook, but one must be born a roaster. According to Liebig, beef or mutton cannot be said to be sufficiently roasted until it has acquired, throughout the whole mass, a temperature of 158°; but poultry may be well cooked when the inner parts hare attained a temperature of from 130° to 140°. This depends on the greater amount of blood which beef and mutton contain, the colouring matter of blood not being coagulable under 158°.