_Natural History of the Tea Tree_ 295 _Observations on the art of Making Tea, and singular effects of different kinds of Tea Pots on the Infusion of Tea_ 299 _Japanese Method of Making Tea_ 301 Coffee. _Natural History of the Coffee Tree_ 305 _Best Method of Making Coffee_ 308 Kitchen Fire-places, AND Cooking Utensils. _Saucepans and Stew Pans_ 329 _Preserving Pans_ 330 _Copper Cooking Utensils_ 331 _Wooden Tubs_ 336 Cookery. COOKERY IS A BRANCH OF CHEMICAL SCIENCE. Cookery, or the art of preparing good and wholesome food, and of preserving all sorts of alimentary substances in a state fit for human sustenance, of rendering that agreeable to the taste which is essential to the support of life, and of pleasing the palate without injury to the system, is, strictly speaking, a branch of chemistry; but, important as it is both to our enjoyments and our health, it is also one of the least cultivated branches of that science. The culinary processes of roasting, boiling, baking, stewing, frying, broiling, the art of preserving meats, bacon, and hams; the preparations of sauces, pickles, and other condiments; the conserving of fruits; the care and keeping of vegetables; the making of jellies, jams, and marmalades, are all founded upon the principles of this science, and much waste of the material, as well as labour to the parties might often be spared, were those to whom the performance of such tasks is committed, made acquainted with simple chemical truths which would invariably lead to certain results. And, besides, the same knowledge would enable them to attain a much greater degree of perfection in curing and preserving all kinds of animal and vegetable aliments, and in combining the three grand requisites of taste, nutriment, and salubrity, in whatever manner they may be prepared. And, though this art is at present in rude hands, as all branches of chemistry were originally, there is no reason that it should remain so. A kitchen is, in fact, a chemical laboratory; the boilers, stew-pans, and cradle spit of the cook, correspond to the digestors, the evaporating basins, and the crucibles of the chemist. And numerous as the receipts of cookery are, the general operations (like the general process of chemistry) are but few. In some the object aimed at is, to extract the constituent parts of the food, so as to exhibit them in a separate state, or to combine them with other substances, to produce new compounds which differ widely from those from which they originated. In others, the qualities of the substances are simply altered by the