For reports on the excavations at the northeast angle, see Charles Warren and Claude R. Conder, Survey of Western Palestine, vol. 2, (London: Palestine Exploration Fund, 1884), pp. 126–147; Charles Wilson, “The Masonry of the Haram Wall,” in Palestine Exploration Fund, Quarterly Statement (1880), pp. 39–46; Wilson and Warren, Recovery of Jerusalem (New York: D. Appleton & Co., 1871), pp. 159–188.