The business of the dairy, like the feeding of hogs and poultry, is originally carried on as a save-all. The cattle necessarily kept upon the farm produce more milk than either the rearing of their own young, or the consumption of the farmer's family requires; and they produce most at one particular season. But of all the productions of land, milk is perhaps the most perishable. In the warm season, when it is most abundant, it will scarce keep four-and-twenty hours. The farmer, by making it into fresh butter, stores a small part of it for a week; by making it into salt butter, for a year; and by making it into cheese, he stores a much greater part of it for several years. Part of all these is reserved for the use of his own family, the rest goes to market, in order to find the best price which is to be had, and which can scarce be so low as to discourage him from sending thither whatever is over and above the use of his own family. If it is very low indeed, he will be likely to manage his dairy in a very slovenly and dirty manner, and will scarce, perhaps, think it worth while to have a particular room or building on purpose for it, but will suffer the business to be carried on amidst the smoke, filth, and nastiness of his own kitchen, as was the case of almost all the farmers' dairies in Scotland thirty or forty years ago, and as is the case of many of them still. The same causes which gradually raise the price of butcher's meat, the increase of the demand, and, in consequence of the improvement of the country, the diminution of the quantity which can be fed at little or no expense, raise, in the same manner, that of the produce of the dairy, of which the price naturally connects with that of butcher's meat, or with the expense of feeding cattle. The increase of price pays for more labour, care, and cleanliness. The dairy becomes more worthy of the farmer's attention, and the quality of its produce gradually improves. The price at last gets so high, that it become worth while to employ some of the most fertile and best cultivated lands in feeding cattle merely for the purpose of the dairy; and when it has got to this height, it cannot well go higher. If it did, more land would soon be turned to this purpose. It seems to have got to this height through the greater part of England, where much good land is commonly employed in this manner. If you except the neighbourhood of a few considerable towns, it seems not yet to have got to this height anywhere in Scotland, where common farmers seldom employ much good land in raising food for cattle, merely for the purpose of the dairy. The price of the produce, though it has risen very considerably within these few years, is probably still too low to admit of it. The inferiority of the quality, indeed, compared with that of the produce of English dairies, is fully equal to that of the price. But this inferiority of quality is, perhaps, rather the effect of this lowness of price, than the cause of it.