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Scientific American, Vol. 42, No. 19 (May 1880) (1880)

leaf 3

An illustration from Scientific American, Vol. 42, No. 19 (May 1880), 1880, leaf 3
e it for that purpose on ground adjacent to tunnel are rapidly put in, so that the workmen at the head- now building is only one-half of what is to make the com- the tunnel opening for the supply of the immense amount ing will always be protected by an iron ceiling, and thus the pleted work, as the… … HUDSON EIVER TUNNEL-LAYING THE IRON PLATES. West, greatly increases the plates to be placed in posi- © 1880 SCIENTIFIC AMERICAN, INC

Patents · Tunnel · Iron · Nickel · Boiler · Patented · Scientific American · Large number · Jersey city · Red spot · Sulphureted hydrogen · Life preserver · Patent issued · Years ago · Electric light · Equatorial belt

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