The absence of all ornament, the very sparing use of ashlar, and the general roughness of the work, especially of the lower floor of this keep, lead to the conclusion that it was executed in haste, and with an insufficient command of good material. The vaulting especially is very coarse, and impressions remaining upon, and the occasional fragments of oak imbedded in, the mortar, show that the centering was composed of small rough oak slabs, not even cut to lengths, but overlapping, and that occasionally the form of the arch was preserved by the intervention of a rough coat of mortar. This used to be apparent even in the vaults of the chapel, and may still be seen in the mural galleries and staircases. Against the east wall of the keep, a large rectangular building, now removed, was constructed, it is said, by Edward III. The lower walls were thick, and its south-east angle, which remains, seems to have been rounded off, perhaps as a turret. It is evidently an addition, and had nothing to do with any raised or covered entrance to the keep. The inner ward is enclosed within a curtain wall, having four sides, twelve mural towers, and a gatehouse. The base or longest side faces the river. The east and west sides incline inwards, so that the north face is narrower than the base. This face is broken by an obtuse angle, having a central salient. The level of much of this enclosure is 15 to 20 feet above that of the outer ward. Possibly part of the clay from the ditch, excavated by Longchamp, in the reign of Richard I., was here piled up. By reason of this difference, the lower part of this ward wall is a revetment, retaining the ground along the west and north, and part of the south and east fronts. The inequality is seen at the gatehouse, the passage through which rises one foot in ten to the middle of the ward; and, at St. Martin’s Staircase, at the north-east corner. Where the palace stood, from Wakefield to Salt Tower, the levels are nearly equal. This ward is much encumbered with buildings, some of the age of Henry VIII., some later, while others have been lately removed. No doubt this ward was always thus occupied, as the Tower was a depôt for all sorts of military stores, and a residence for petty officers of the court and garrison. In 1213, King John ordered to be salted and hung up “bacones nostros qui sunt apud Turrim”; and, in 1224, he drew upon the Tower for thirty dolia of wine; so that pigstyes and wine-stores formed a part of its contents. Lead, and the more expensive building-materials, were also kept here.