Criticism was to have been expected, from the very nature of the topic of investigation. But the author has endeavored, as a student at the feet of his judges, to derive the largest possible benefit from criticism. No word of censure, however wide of the mark, has been unwelcome to him, whether from the sceptical or orthodox press. To all questioned passages he has given a careful re-examination, in some instances finding cause for alteration, but in others seeing his ground more strongly sustained than was at first imagined. He has, for example, been informed by many esteemed persons that his representation of Coleridge was hardly just; and, in obedience to that suggestion, he has given that author's works a more careful study than ever, having previously resolved to completely reverse his judgment of that profound thinker's faith, if he found his own utterances would justify him in that course. The result was, as far as he can now recall, that he could alter but one adjective in the entire section relating to Coleridge. Of course, the author finds no fault with those who differ from him on Coleridge, or on any other writer who has come under treatment; but he must be granted by others what he concedes to them. For the criticism, as a whole, which he has received both through the press and private sources, he owes a debt of gratitude which he cannot hope to pay. It gives him profound pleasure to know, that the highest theological journals in the United States which wage open war against orthodoxy, have conceded, with marked unanimity, the general correctness of his statements, though they naturally take issue with his conclusions. Every effort has been bestowed on the present edition to make it as free from blemishes as possible. The appendix of literature has been slightly enlarged, many typographical errors--occurring in consequence of the too rapid passage of the work through the press, and the abundance of words of different languages with which the printer was not always well acquainted--have disappeared; and, in many cases, the narrative has been brought down to the present time. In the prosecution of revision, a large number of the stereotype plates have been cancelled; and no labor has been wanting to make this edition worthy of the goodwill expressed toward the two editions which have preceded it. Through a strange providence the author is now about to commence a term of theological instruction in Germany, where Rationalism first excited his attention, and where his apprehensions were first raised that Great Britain and the United States might be seriously invaded by it. His presence at its old hearthstone leads him to indulge the hope that, in some future though distant day, if life be spared, he may be able to enlarge this history greatly, and thus to render it better adapted to its purpose, more approximative to his first ideal, and more commensurate with the present universal interest in religious and theological themes.