We present a volume widely differing, in its contents, from those which have gone before; it contains the works of the great founder of Latin Christianity, the versatile and brilliant Tertullian. Not all his works, indeed, for they could not be contained in one of our books. This book, however, considerably overruns the promised number of pages, and gives three complete parts of Tertullian's writings, according to the classification of our Editor-in-chief. The Fourth volume will begin with the fourth class of his works, those which exhibit our author's ascetic ideas and the minor morals of the Primitive Christians, that collection being closed by the four treatises which were written in support of a defined and schismatical Montanism.