There is a strong tendency towards superficial culture at the present day, which is the natural result of the immense amount of books and periodicals constantly pouring from the press, and tempting readers to dip a little into almost everything, and to study nothing. Much is said of the pernicious consequences arising from lectures and periodicals, as though a short account of anything must of necessity be a superficial one; but this is far from the truth. A quarto volume on one theme may be entirely superficial, while a lecture or review-article on the same theme may contain the whole gist of the matter. Prolixity is oftener superficial than brevity. Books are superficial if they relate only to the outside of a subject,--if they describe only its husk; and the reverse, if they give its kernel. Many an able review-article contains the kernel of a whole volume, and if the pleased reader of the review goes to the book itself, expecting to enjoy that in a degree proportionate to its size, he will often find he has got nothing but a dry husk for his pains. Those who have little time for books, but who wish really to know many things, can accomplish a great deal by being careful to hunt for meats rather than for shells and husks; for though the outsides of things make a great show, and can be displayed by the pedant to great advantage before those who are superficial as himself, they contain no healthful nutriment for the mind. Take, for instance, the study of botany. Let a person master the whole vocabulary of the science, and know the arrangement of its classifications so well that he can turn at once to the description of any plant he may find. Let him do this until, like King Solomon, he knows every plant by name, from the "hyssop on the wall to the cedar of Lebanon"; but if at the same time he knows nothing more about them than the name, his knowledge of botany is entirely superficial, though he may have spent a vast deal of time and labor in its acquisition. Let another person have studied the physiology of plants till he has learned all that has yet been discovered of their curious and beautiful structure,--till he appreciates as far as mortals may the Divine wisdom, that even in the formation of a blade of grass transcends not only all that man with all his pride of science and mechanical skill can perform, but goes far--we cannot even guess how far--beyond all that human intellect can comprehend; and still more if the mind of this student be lifted upward in adoration as he learns, he is the true botanist, though he may have studied far less, if we count by time, than his superficial brother.