Six sheets of drawings of defences in Lower Canada, originally drawn to accompany...

Six sheets of drawings of defences in Lower Canada, originally drawn to accompany Lieutenant Colonel Oldfield's memorandum of 21 March 1840. (51) No 1: 'Sketch of the Montreal District. Shewing... the Military Posts as proposed ...'. Scale: 1 inch to 4 miles [1:253,440]. Compass indicator. Drawn by Lieutenant P J Bainbrigge, Royal Engineers, 23 March 1840. (52) Chateaugay River. No 2: 'Sketch of the mouths of the Chateaugay': plan showing proposed defences. Scale: 1 inch to 300 yards [1:10,800]. Compass indicator. Drawn by Bainbrigge, March 1840. (53) No 3: 'Cascades': map showing the fortifications between the Ottawa and St Lawrence rivers. Reference table. Scale: 1 inch to 100 feet [1:1,200]. Compass indicator. Inset: section through the fortifications; scale: 1 inch to 50 feet. (54) No 4: 'Bout de L'Isle': plan of the northern end of Montreal Island showing the fortifications. Scale: 1.5 inches to 1 mile [1:42,240]. (55) No 5: 'Sketch of S ^t Lawrence near Sorel': plan showing the defences, their range of fire, and Government and town lands. Scale: 1 inch to 500 yards [1:18,000]. Drawn by Bainbrigge, 18 March 1840. (56) No 6: 'Defence of Montreal Drawn to accompany L ^t Col ^l Oldfield's memoranda dated 21 ^st March 1840'. Reference table. Scale: 1 inch to 400 yards [1:14,400]. Compass indicator. Copied by T Hounslow, Temporary Foreman of Works, 25 March 1840. Dimensions of sheets: (51) 51 cm x 61 cm; (52) 31 cm x 46 cm; (53) 44 cm x 56 cm; (54) 20 cm x 27 cm; (55) 45 cm x 29 cm; (56) 28 cm x 43 cm.