The roads and railroads, vehicles, and modes of travelling, of ancient and modern countries; with accounts of bridges, tunnels, and canals, in various parts of the world .. (1839)
London : J.W. Parker · leaf 159
TTi >rrn f tttt The Thames Tunnel CHAPTER X. On Tunnels.—Uses of Tunnels.—Natural and artificial.—NaturalTunnel in America.—Medway, Edge Hill, and ThamesTunnels. Tunnel is a name given to an arched opening whichpasses through a hill or an elevated portion of country,having a place of exit at…
Roads · Railroads · Bridges · Vehicles
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