We have called this volume "Studies of Christianity," simply as a convenient indication of the general character of its contents. In justice to the author, it should be borne in mind that the separate papers were prepared to meet various occasions, without a suspicion that they would ever be brought together to form a book. Of course they do not express his complete views of the mighty subject which they fragmentarily treat. The relative order and rank of his convictions, the interpretation of Christianity from its inner side, appear much better in his "Endeavors after the Christian Life,"--by far the richest and noblest series of sermons in the English language. Still, a kind of unity pervades the different pieces composing this collection. One Christ-like strain of sentiment breathes through them all. The same consecrating fealty to truth presides over them all. The same grand outline of principles and unvarying standard of judgment are constantly evident. The same marvellous acumen, breadth of learning, and exquisite culture, everywhere appear. Each article is more or less directly an illustration of Christianity, as something moral, spiritual, vital, dynamic, to be practically assimilated by the soul, in distinction from the common exposition of it, as something sacerdotal, dogmatic, formal, forensic, once enacted and now to be mimetically observed. The energetic patience of labor, the detersive intellect, the unalloyed devoutness of spirit, the telescopic range both of faculty and equipment, revealed even in these wayside products, awaken in us an unappeasable desire for a more purposed and systematic work from the same mind, now in its fullest maturity. In the mean time we will express our grateful appreciation of the contributions already furnished, by giving them further circulation, assured that no truly pious and intelligent person, free from bigotry and shackles, can peruse them without receiving equal measures of delight and profit.