A plan of the British fort on Bunker Hill. The map is keyed to show: (a) two temporary magazines; (b) barracks; (c) guard-houses; (d) magazine; (e) advanced ditch; and (h) bastions. "This was a well-built redoubt. The parapet was from six to fifteen feet broad; the ditch from fourteen to eighteen feet wide; and the banquet about four feet broad. The galleries and parapet before them were raised about twenty feet high, and the merlons at the six-gun battery in the center were about twelve feet high." - Lossing, 1851.