Collection search - Rideau Canal. Plan showing in green colouring land required for service of the canal at Nicholson's and Clow's Lock Station...(Signed) John A. Snow, Provincial Land Surveyor, Merrickville, 24th April 1849. (Signed) Fred. W. King, Lieut. R. Engr., 2nd July. Royal Engineer Office Bytown, 2nd July 1849. (Signed) Charles E, Ford, Captain Rl. Engineers. (Sgd.) F.W. Whingates, Lt. Col. Comg. Rl. Engrs., 17th Sept., 1851. Comp'd (Sgd.) B.W., 2/May/54. Copy C.G. [?], 13th June/74. [cartographic material]