Is there an arrangement that human skill could mend? Is there an organization that man can fully solve, or a combination that his mind can wholly compass? Do we not behold limitless perfection everywhere, but all so deeply mysterious. So exquisite are the feelings which the contemplation commands, that they imbue us deeply with the sense of the high privilege conferred upon the intellect by its being permitted to embrace a study, which, even pursued merely as a relaxation, inculcates in so serene and pleasing a manner such profound veneration and reverence. To acquire the prospect of a possibility to unravel the exuberant profusion of the natural objects surrounding us, successive students of nature have endeavoured to systematize the seeming confusion in which her riches are spread about. Like has been brought to like, and gradation made to succeed gradation. Resemblances have been combined and disparities disjoined, until the labour of centuries has constructed of all the natural objects within the ken of man a vast and towering edifice, whose basis is seated at the lowest substructure of the earth which research has yet reached, but whose head ascends high into the empyrean. All things have been collected, and arranged, and classed. Method has endeavoured to give them succession according to an assumed subordination. The labour of the great minds which framed the large theories of this vast branch of human knowledge, has permitted men of lesser powers of combination to abstract parts for special examination and investigation. The study of natural science has progressively reached an extraordinary development, spreading in every direction its innumerable tentacula; to which the perfection of the telescope and of the microscope have still further added by the discovery of new worlds of wonder. Just as language is systematized and made easier by grammar methodizing its co-ordinates and their relations, so natural science arranges its subjects into subdivisions of which genera and species are the lowest terms. The higher and more complicated are of many denominations, which, notwithstanding, have for their chief purpose the simplification of the survey by assisting accurately to determine accurately natural objects individually. Once the clue of the labyrinth caught, the seeming intricacy of its involution vanishes; for when a clear conception of the general scheme is obtained, the solution of the parts is comparatively easy. The same principle rules throughout, however variously treated.