While in England Mr. Colton wrote and published a book on the subject of _Revivals_, and declared himself their advocate. In the fifth chapter of his present work he opposes them, and in the Preface alludes to his so doing, maintaining that these religious excitements are materially changed in their character. He speaks also of a chapter in a former work, entitled “_The Americans, by an American in England_”—a chapter devoted to the removal of aspersions cast in England upon the developments of religion in America. For some such defence it appears that he was called upon by friends. The effort itself was, as Mr. C. assures us, of the nature of an _apology_—neither attempting to recommend or establish any thing—and he thus excuses himself for apparent inconsistency in now declaring an opinion against the expediency of the practices which were scandalized. The _Episcopacy_ of Mr. Colton will be read with pleasure and profit by all classes of the Christian community who admire perspicuity, liberality, frankness, and unprejudiced inquiry. It is not our purpose to speak of the general accuracy of his _data_, or the soundness of his deductions. In style the work appears to us excessively faulty—even uncouth. MAURY'S NAVIGATION. This volume, from an officer of our Navy, and a Virginian, strongly commends itself to notice. The works at present used by our navy and general marine, though in many respects not devoid of merit, have always struck us as faulty in two particulars. They aim at comprising a great multiplicity of details, many of which relate to matters only remotely bearing upon the main objects of the treatise—and they are deficient in that clearness of arrangement, without which, the numerous facts and formulæ composing the body of such works are little else than a mass of confusion. The extraction of the really useful rules and principles from the multifarious matters with which they are thus encumbered, is a task for which seamen are little likely to have either time or inclination, and it is therefore not surprising that our highly intelligent navy exhibits so many instances of imperfect knowledge upon points which are elementary and fundamental in the science of navigation.