To all this it is possible to reply that we do not see the tower in its original condition; that its upper story, which stood on the level of the palace area to the rear, is gone; that the tower, as it stands, consists largely of Turkish repairs; that the extent to which, in its original state, it resembled, or failed to resemble, the description of the Tower of Isaac Angelus as given by Nicetas, cannot be accurately known, and that, consequently, the question regarding the identity of the tower must be decided by the inscription found upon the building. There is force in this rejoinder; and it is the conclusion we must adopt, if there are not stronger reasons for identifying the Tower of Isaac Angelus with one or other of the two adjoining towers, N and S. [Illustration: “The Tower of Anemas” and “The Tower of Isaac Angelus” (From the North-West).] The claims of the tower N to be the Tower of Isaac Angelus rest upon its strong resemblance to the description which Nicetas has given of the latter building. His description seems a photograph of that tower. Like the Tower of Isaac Angelus, the tower N, besides defending and supporting the Palace of Blachernæ, was pre-eminently a residential tower; and the numerous pillars employed in its construction betray clearly the fact that it was built with materials taken from other edifices, some of which may well have been churches. The upper story, which was reached from the court of the palace behind it, formed a spacious apartment 22-¼ by 27-½ feet, and about 18 feet high. Its north-western wall was pierced by three large round-headed windows, opening, as pillars placed below them for supports indicate, upon a balcony which commanded a beautiful view of the country about the head of the Golden Horn. Another window led to a small balcony on the south-western side of the tower, while a fifth looked towards the Golden Horn and the hills beyond. The apartment might well be styled the Belvedere of the Palace of Blachernæ. The lower story of the tower, which was reached by a short flight of steps descending from the palace court to the vestibule C1, cannot be explored, being filled with earth; but, judging from its arched entrance and the large square window in the north-western wall, it was a commodious room, with the advantage of affording more privacy than the apartment above it. What was the object of the dark rooms situated below these two stories, at different levels of the tower, and reached from the stairway-turret outside it, is open to discussion. The stairway, as already intimated, led also to the surrounding country. Taking all these features of the tower N into consideration, a very strong case can be made in favour of the opinion that it is the Tower of Isaac Angelus.