We are among those who believe that, as characterizing the present age, the cultivation of purely mechanical and natural science has been carried much too far, or rather, has been made too exclusive and absorbing. It is not the _highest_ science—for it concerns only that which is around us—which is altogether outward. Man is always greater than the world of nature in which he lives, and just as clearly must the _science_ of man, the philosophy of his moral and intellectual being, rank far above that of the soulless creation which was made to minister to his wants. When, therefore, this lower science so draws to itself the life of any age, as to disparage and shut out the higher, it works a positive injury to the well-being of that age. Still it is only thus in comparison with a nobler and more lofty study that we would venture to cast the faintest reproach upon that natural science which in no slight degree absorbs the intellectual effort of the present generation. Regarded as related to, and a part of, a complete system of education, it becomes most important and necessary; and its cultivation, even to apparent excess, a cause of rejoicing and a source of the highest hope. We need scarcely say, then, that we look upon the explorations which have been made “by authority” into the Geology and general Natural History of several of the most important States in the Union, as among the proudest achievements of the present day. Most of them, it is true, grew out of designs not the highest on the part of those by whom they were originated. The development of resources, the discovery of mineral wealth, or other elements of power, formed in most cases the principal aim of those at whose instance these surveys were undertaken. But this is of little importance. The results are, on this account, none the less valuable to the cause of natural science, nor is our joy at their successful prosecution the less ardent or sincere. In all the States in which they have been undertaken, they have been fruitful of the best results; and the facts thus brought together will be found of priceless value to students and inquirers for ages to come.