Collection search - Plans no.2. showing the comparative levels of each angle of the parapet, and the opposite levels of the ditch and counterscarp, and also the planes of the glacis of Fort Henry, as proposed when completed. Gusts. Nicholls Colonel Comg Rl. Engineers Canada. Rl. Engineers Office, Quebec, 10 August 1835. T.G.W. Eaststaff, Draugn. [architectural drawing]