170+ year old technology print about canals antique science print canal dam hydraulic engineering vintage prints

For sale is a beautiful old print with detailed images relating to the construction of canals. The central image is of a canal in Canada (Rideau Waterway near Ottowa). The last photo is an index of what exactly is depicted. It is in old German and therefore somewhat difficult to read. Dimensions: 22.5 x 29.5 cm Condition: good (= number written in the top left corner - faintly dog-eared in the top right corner - otherwise very good and in good overall condition) Origin: Brockhaus Conversations-Lexikon - edition 1849