This volume is an amplified and expanded essay read before the members of the Young Men's Society in connection with Park Church, Highbury, on the evening of the 2nd of November, 1874. The original purpose of the author was to indicate to the associates of that Christian institution how the influence of German anti-Christian literature, made plain to English readers by such books as the one under review, might be withstood and neutralised, and to supply an antidote to the poisonous insinuations respecting Christianity which many of the periodicals of the day disseminate in noticing works of this character. Those that are not professedly hostile to religion have a way of treating Truth and Error as if nothing had been proved, and as if the question were quite an open one whether Divine Revelation is, or is not, a reality. The present design of the author has a wider range than he first intended. He desires to induce, not only young men, but those nearer his own age, and placed, much as himself, in the great centres of business, who have not much time for research into such matters, to bring their intelligence fairly alongside the bold pretensions of the cavillers and quibblers who presume to _know_ that there is no God, or that He has not spoken. He desires to remind those who are doubting that "there is a knowledge that creates doubts which nothing but a larger knowledge can satisfy," and that he who stops in the difficulty "will be perplexed and uncomfortable for life." Having investigated for himself, the author indicates the result, and would like, if he can, to facilitate the inquiry which it is, unquestionably, the duty and interest of every one to make. If to rest on a foregone conclusion on a matter of such momentous importance is not altogether justifiable on the Christian side of the question, how much less so on the other! For it should be remembered that, on the one side, looking at the question from a _primâ facie_ point of view, we have a faith which has the endorsement of the highest civilisation, the best morality, the truest culture, the noblest aspirations, and the greatest happiness which humanity has ever experienced; in contrast with a negation which has nothing to offer as a substitute, taking away the light that illumines the path of life, and leaving it in utter darkness.