Mr. Arthur Aikin, in his “Calendar of Nature,” presents us with a variety of acceptable information concerning the operations of nature throughout the year. “The plants at this season,” he says, “are provided by nature with a sort of winter-quarters, which secure them from the effects of cold. Those called _herbaceous_, which die down to the root every autumn, are now safely concealed under-ground, preparing their new shoots to burst forth when the earth is softened in spring. Shrubs and trees, which are exposed to the open air, have all their soft and tender parts closely wrapt up in buds, which by their firmness resist all the power of frost; the larger kinds of buds, and those which are almost ready to expand, are further guarded by a covering of resin or gum, such as the horse-chestnut, the sycamore, and the lime. Their external covering, however, and the closeness of their internal texture, are of themselves by no means adequate to resist the intense cold of a winter’s night: a bud _detached_ from its stem, enclosed in glass, and thus protected from all access of external air, if suspended from a tree during a sharp frost, will be entirely penetrated, and its parts deranged by the cold, while the buds on the same tree will not have sustained the slightest injury; we must therefore attribute to the _living principle_ in vegetables, as well as animals, the power of resisting cold to a very considerable degree: in animals, we know, this power is generated from the decomposition of air by means of the lungs, and disengagement of heat; how vegetables acquire this property remains for future observations to discover. If one of these buds be carefully opened, it is found to consist of young leaves rolled together, within which are even all the blossoms in miniature that are afterwards to adorn the spring.” During the mild weather of winter, slugs are in constant motion preying on plants and green wheat. Their covering of slime prevent the escape of animal heat, and hence they are enabled to ravage when their brethren of the shell, who are more sensible of cold, lie dormant. Earthworms likewise appear about this time; but let the man of nice order, with a little garden, discriminate between the destroyer, and the innocent and useful inhabitant. One summer evening, the worms from beneath a small grass plat, lay half out of their holes, or were dragging “their slow length” upon the surface. They were all carefully taken up, and preserved as a breakfast for the ducks. In the following year, the grass-plat, which had flourished annually with its worms, vegetated unwillingly. They were the under-gardeners that loosened the sub-soil, and let the warm air through their entrances to nourish the roots of the herbage. “Their calm desires that asked but little room,” were unheeded, and their usefulness was unknown, until their absence was felt. [Illustration: ~Plough Monday~]