THE original authorities and sources of information, in manuscript and print, relating to the agitations and controversies arising within the real or assumed membership of the Church of England after the Reformation, are to be distinguished into two great classes,—those of a public character, as records of the proceedings of government, of the courts, and of all bodies or individuals in office charged with authority; and those of a private nature, coming from voluntary bodies, or from single members of them, or from writers and authors whose works were published after the usual method, or sent forth and circulated surreptitiously. Both these classes of original authorities, constituting together an enormous mass of an infinitely varied elementary composition, are alike widely scattered, and, so far as they have not been gathered into local repositories, could be directly consulted only by one whose travel, investigation, and research were of the most extended comprehensiveness. England, Holland, and Switzerland have in keeping contemporary records and documents relating to minute and trivial, or to most important and vital, points in one or another stage, or concerning one or another prime party in the controversy. Perhaps, even after all the keen investigation and diligent toil of the most recent inquisitors, such original papers have not been exhaustively detected and examined. But one who is familiar with the stores already reported to us, unless his taste and interest in them run to morbidness, will hardly desire more of them. It is certain that whatever obscurity may still invest any incidental point in the controversy, the matter is of such comparatively slight importance, that the substance and details of any information as to persons or events which may be lacking to us would hardly qualify the general narratives of history. The expense, diligence, and intelligent illustration which within the last thirty or forty years have been devoted to the collection and arrangement and calendaring of such masses of the State and other public papers of Great Britain, have aided as well as prompted the researches of those who have been zealous to trace out with fidelity and accuracy every stage, and the character and course of each one, lofty or obscure, as an actor in the larger and the lesser bearings of the struggle of Nonconformity and Dissent. As a general statement, it may be affirmed that the developments and the more full and minute information concerning the substance and phases of early Puritanism, as they have been studied in the mass of accumulated documents, have set forth the controversy in a dignity of interest and in a disclosure of its vital relations to all theories of civil government, church establishments, and the institutional administration of religion, far more fully and in a much more comprehensive view than was recognized by contemporary actors.