The plan was taken by Mr. Hanford W. Edson, formerly Instructor in Mathematics at Robert College. It was drawn by Professor Alfred Hamlin, of Columbia College, and revised by Mr. Arthur E. Henderson, Architect. Footnote 521: Since the above was written this way of entering the tower and chambers has been closed. One gains admittance now at the opening V, from the courtyard of the Mosque of Aivas Effendi. Footnote 522: In the opinion of some authorities, _e.g._ Professor Strzygowski, this apartment was a cistern. Footnote 523: Cf. Lanciani, _The Ruins and Excavations of Ancient Rome_, pp. 178, 179, 182. Footnote 524: See the loophole windows in plan of that residence, facing p. 109. Footnote 525: See below, p. 273. Footnote 526: See above, p. 128. Footnote 527: _Ut supra._ Footnote 528: Speaking of similar substructures below the Domus Gaiana in the Palace of the Cæsars at Rome, Lanciani remarks: “We gain by them the true idea of the human fourmillière of slaves, servants, freed men, and guards, which lived and moved and worked in the substrata of the Palatine, serving the court in silence and almost in darkness” (_The Ruins and Excavations of Ancient Rome_, p. 150). Footnote 529: Nicetas Chon., pp. 580, 581, Προθέμενος δὲ καὶ πύργον τεκτήνασθαι κατὰ τὸ ἐν Βλαχέρναις παλάτιον, ἅμα μὲν εἰς ἔρυμα τῶν ἀνακτόρων, ὡς ἔφασκε, καὶ ὑπέρεισμα, ἅμα δὲ καὶ εἰς ἐνοίκησιν ἐαυτῷ. Footnote 530: _Ibid. ut supra._ Footnote 531: See above, p. 132. The tower is marked L on the Map which faces p. 115. Footnote 532: Page 39. Footnote 533: Anna Comn., xii. 161, 162, where the prison of Anemas, ἡ τοῦ Ἀνεμᾶ εἱρκτή, is described as πύργος δ᾽ ἦν εἷς τις τῶν ἀγχοῦ τῶν ἐν Βλαχέρναις ἀνακτόρων διακειμένων τειχῶν τῆς πόλεως: also p. 161, τὸν ἀγχοῦ τῶν ἀνακτόρων ᾠκοδομημένον πύργον. Footnote 534: See his Epistle to Pope Nicholas V. Footnote 535: Page 51, Ἐν τοῖς πύργοις τοῖς λεγομένοις Ἀδεμανίδες πλησίον Βλαχέρνων. The name Anemas appears first in Theophanes, p. 749, as the surname of a certain Bardanius, τὸ ἐπίκλην Ἀνεμᾶν, in the reign of Nicephorus I., 802-811. Footnote 536: The Byzantine authors who refer to the Prison of Anemas in express terms are: Anna Comnena, xii. pp. 161, 162; Nicetas Choniates, p. 455 (ἡ τοῦ Ἀνεμᾶ φρουρὰ); Pachymeres, vol. i. p. 378; Cantacuzene, lib. ii. p. 329; Phrantzes, p. 51; Ducas, p. 45. Once, Pachymeres (vol. ii. p. 409) speaks of ταῖς κατὰ τὰς Βλαχέρνας εἱρκταῖς, in which the Despot Michael and his family were confined. Footnote 537: Page 31. Footnote 538: _Ancient and Modern Consple._, pp. 11, 45. The patriarch supposed that the Palace of Blachernæ stood within the enclosure formed by the Wall of Heraclius and the Wall of Leo. _Ibid._, p. 44. Footnote 539: _Pand. Hist. Turc._, s. 206. Footnote 540: See his Epistle to Pope Nicholas V. Footnote 541: