Collection search - No. 2. Plan and section of an outwork proposed to occupy the ground in front of the Citadel of Quebec. Henry P. Wulff, Lt. Royl Engrs. S.C. Melhuish Capt. Rl Engrs. Comg Quebec District. E.W. Durnford, Col., Comg Rl Engr Canda 4th November 1831. [architectural drawing]