reason for reading them. The divisions of Christendom are undeniable and are by some of these writers most fiercely expressed. But if any man is tempted to think—as one might be tempted who read only contemporaries—that “Christianity” is a word of so many meanings that it means nothing at all, he can learn beyond all doubt, by stepping out of his own century, that this is not so. Measured against the ages “mere Christianity” turns out to be no insipid interdenominational transparency, but something