This Tract is divided into four Books. In the First Book, the excellency of Masonry is displayed. In the Second Book, the general plan ofthe subjects treated in the three Degrees is illustrated, with occasional remarks ; and a brief description is given of the ancient Ceremonies of the Order. This part of the Treatise, which the Author considers most essential for the instruction and improvement of his Brethren, is considerably extended in the later Editions. The Third Book contains the copy of a curious old Manuscript on Masonry, with annotations, the better to explain this authentic document o