occasion to allude to, you make yourselves, in the strictest sense of the word, ARTISTS. A Digression concerning Windows. In the foregoing Lectures, having only brought the history of our Architecture down to the close of the thirteenth century, I have neglected that of the later styles, and, consequently in great measure, the development and progressive changes in window-tracery. This has, however, been so amply treated of in many books and essays that it is not a matter with me of much regret. I confess I _had_ intended to have supplied the omission in subsequent lectures, but circumstances prevented. It would have been an agreeable task to have followed up the history of window-tracery and the many details which accompanied it, through the remaining two and a half centuries of the reign of Gothic architecture--to have shown how it grew from the purely geometrical system of Westminster, Newstead, and the “Angel choir” at Lincoln into the sweeter tracery of the “Easter aisle” at St. Albans, and of St. Etheldreda’s Chapel in Holborn; and on again into the yet softer loveliness of the Lady Chapel at Chichester, the halls at Penshurst, Mayfield, the gatehouses of Battle Abbey and of St. Augustine’s at Canterbury, and the Chapel of St. Anselm and De Estria’s work at the cathedral there; and then again into the more flowing tracery of Alan de Walsingham’s work, till it fell into debility by its too sensuous ramifications, and was brought back again to vigour by the stern perpendicular work of Wykeham; and how that, in its turn, became softened down, into such works as Crosby and Eltham Halls, and again into the exuberance of the Tudor style. All this would be very pleasant, but would necessitate the treating of all contemporary variations of detail, and would swell my lectures out into another volume: more than this, _I have given no such lectures_. It has been _my_ task to show the principles on which Gothic architecture _was founded_, and on which it attained its leading developments, rather than to follow them out to their ultimate results, on attaining which much which led to them was thrown aside, as scaffolding is taken down when a structure is completed. I feel it necessary, however, while neglecting the more usual course of chronicling the history of window-tracery, to supplement my lectures at this point with some remarks on the general construction of windows--applicable more or less to all periods of Mediæval architecture.