Turnips and other roots are the principal food of cattle in the winter: a preliminary chapter, therefore, is devoted to the "drawing and storing of turnips and other roots." Had we our article to begin again, we could devote several pages, agreeably to ourselves, and not without interest, we believe, or without instruction, to our reader, in discussing a few of those points connected with the feeding of cattle, upon which, though the means of information are within their reach, practical men have hitherto permitted themselves to remain wholly ignorant. Of these points Mr. Stephens adverts to several, and suggests the advantage of additional experiments; but the whole subject requires revision, and, under the guidance of persons able to direct, who are acquainted with all that is yet known, or has as yet been done either in our own or in foreign countries, experiments will hereafter, no doubt, be made, by which many new truths, both theoretically and practically valuable, are sure to be elucidated. We may advert, as an illustration, to the feeding properties of the turnip. It is usual to reckon the value of a crop of turnips by the number of tons per acre which it is found to yield when so many square yards of the produce are weighed. But this may be very fallacious in many ways. If they are white turnips, for instance, nine tons of small will contain as much nourishment as ten tons of large--or twenty-seven tons an acre of small turnips will feed as many sheep as thirty tons per acre of large turnips. Or if the crop be Swedes, the reverse will be the case, twenty-seven tons of large will feed as much stock as thirty tons of small.--(Vol. ii., p. 20.) Mr. Stephens points out other fallacies also, to which we cannot advert. One, however, he has passed over, of equal, we believe of greater, consequence than any other--we allude to the variable quantity of water which the turnip grown on different soils in different seasons is found to contain.