Many a good thing, however, is spoiled in the oven. We can not but regret, for the sake of bread, that our old steady brick ovens have been almost universally superseded by those of ranges and cooking-stoves, which are infinite in their caprices, and forbid all general rules. One thing, however, may be borne in mind as a principle--that the excellence of bread in all its varieties, plain or sweetened, depends on the perfection of its air-cells, whether produced by yeast, egg, or effervescence; that one of the objects of baking is to fix these air-cells, and that the quicker this can be done through the whole mass, the better will the result be. When cake or bread is made heavy by baking too quickly, it is because the immediate formation of the top crust hinders the exhaling of the moisture in the centre, and prevents the air-cells from cooking. The weight also of the crust pressing down on the doughy air-cells below destroys them, producing that horror of good cooks, a heavy streak. The problem in baking, then, is the quick application of heat rather below than above the loaf, and its steady continuance till all the air-cells are thoroughly dried into permanent consistency. Every housewife must watch her own oven to know how this can be best accomplished. Bread-making can be cultivated to any extent as a fine art--and the various kinds of biscuit, tea-rusks, twists, rolls, into which bread may be made, are much better worth a housekeeper's ambition than the getting-up of rich and expensive cake or confections. There are also varieties of material which are rich in good effects. Unbolted flour, altogether more wholesome than the fine wheat, and when properly prepared more palatable--rye-flour and corn-meal, each affording a thousand attractive possibilities--all of these come under the general laws of bread-stuffs, and are worth a careful attention. A peculiarity of our American table, particularly in the Southern and Western States, is the constant exhibition of various preparations of hot bread. In many families of the South and West, bread in loaves to be eaten cold is an article quite unknown. The effect of this kind of diet upon the health has formed a frequent subject of remark among travelers; but only those know the full mischiefs of it who have been compelled to sojourn for a length of time in families where it is maintained. The unknown horrors of dyspepsia from bad bread are a topic over which we willingly draw a veil. Next to Bread comes _Butter_--on which we have to say, that, when we remember what butter is in civilized Europe, and compare it with what it is in America, we wonder at the forbearance and lenity of travelers in their strictures on our national commissariat.