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Show World's Mjost Famous Tunnels. If the new tunnel through Mont Blanc Is cut, ns anticipated, within live years, the work will compare favorably fa-vorably 1p expedition wit some other great undertakings of th kind. The Mersey tunnel, though but a mile and a half long, tok six years to cut; the Severn, faur and a third miles long, tool: thirteen years; the Mont Cenls, eight miles, took fourteen years; the St. Gothnrd, nine nnd a third miles, ten years; and the Slm-plon, Slm-plon, twelve nnd a quarter miles, eight years. |