Engraving depicting a bird's-eye view of Niagara Falls

Engraving depicting a bird's-eye view of Niagara Falls, showing docks, factories, etc. A scheme was put forward to run a tunnel 10m in diameter from the base of American Falls to a point 1 or 2 miles up river finishing 30m below the surface. The water drawn from the river into the tunnel would give sufficient head to drive dynamos. 1 million hp expected

Birds-eye Diameter Dynamo Dynamos Expected Finishing Hydro Niagara Scheme Sufficient Waterfall

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