Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 288
a white line in the lower central part ofthe picture. This may well be called the cork-screw method of climbing a mountain. LARGEST HYDRAULIC LIFT-LOCKIN THE WORLD The largest hydraulic lift-lock in the world is atPeterborough, Canada. It consists of two greatsteel boxes, or pontoons, moving up and… … ONE CAISSON, CAKKVING A BOAT, KISING. THE OIHEK DESCENDING. the boat, which then, being overweighted, risesbodily into the air until it reaches the level ofthe upper canal. The boats are lifted a total distance of sixty-five feet, the gates and capstans being operatedentirely by hydraulic power.…
Children's literature
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