How high his historical statements are to be rated is shown by the assertion that _Cyril of Alexandria_ had much to do with the introduction of the worship of the Virgin Mary (p. 55); that auricular confession was introduced by the Fourth Lateran Council in 1215 (p. 208). He asks when the idea originated that the Pentateuch was written by Moses under divine inspiration, and he finds that “not until after the second century [of the Christian era] was there any such extravagant demand on human credulity” (p. 220). It would seem incredible that any one could write such stuff. The author says in his preface: “I had also devoted much attention to the experimental investigation of natural phenomena, and had published many well-known memoirs on such subjects. And perhaps no one can give himself to these pursuits, and spend a large part of his life in the public teaching of science, without partaking of that love of impartiality and truth which philosophy incites” (VIII-IX). We do not care to argue with the author about his experience in experimental research, nor about his love for the truth, but he himself has shown superabundantly that they have not sufficed to keep him clear from scientific shallowness and the grossest blunders. Nevertheless, it seems that his scientific ability obtained for him in the consideration of many the weight of an authority. _Haeckel_, in his “Weltraetsel,” refers repeatedly to the book, and recommends “its truthful statements and excellent discussion” to his readers (Weltraetsel, 17. Kap., Wissenschaft u. Christentum). Such is the fashion in which contradictions between faith and science, and the Church’s hostility towards scientific research, are proved. The result is that we must distinguish clearly between dogmas of faith and private opinions or interpretations. Of course it may frequently happen, and has happened, that the Christian savant is too timorous, and looks askance at the discoveries of science, and even thinks he ought to resist them, because he is afraid that religious truth might be opposed by them. Nor can it be said that this timidity is altogether without excuse, for there was hardly one scientific discovery of the nineteenth century that was not immediately grasped and exploited by eager enemies of the Christian religion. Too often has science been made the menial of infidelity, and the assertion has been untiringly repeated that science and faith cannot agree. No wonder, then, that timid souls become suspicious, that they are prone to resist the whole theory of evolution in a lump, instead of trying to distinguish between what is of scientific value in it, and what is misused for the purpose of denying creation.