Recherche dans la collection - Enlarged copy of a portion of Jno. J. Haslett's plan of islands in the Otonabee River and lakes, and reduced copy of P.L.S., T.R. Hewson's plan of islands in Stony Lake. Revised in respect to the position of township land lines, and shewing in part the probable original shoreline [cartographic material] / A.J. Cameron, O.L.S