LESSONS. The portions of Holy Scripture read in Morning and Evening Prayer. The calendar of lessons now in use was authorized on Jan. 1st, 1873. The lessons were then made generally shorter, by the selection of parts of chapters containing one complete subject and no more. A choice of lessons was given in many cases, that the same portions of Scripture might not be read twice on the same day in churches with three Sunday services. By the present arrangement the main substance of the whole of the Old Testament is now read through once every year; and the New Testament twice, except the book of Revelation, which, with a few omissions, is read once in the year.