Science: Holland Tunnel

President Coolidge stretched forth his arm to touch the golden lever of the presidential telegraphic instrument. He pressed, and a current of electricity flowed to Manhattan and directly across the Hudson river to Jersey City. At each place, in sight of thousands of crowding spectators, the current caused a pair of great U. S. flags slowly to separate. The Holland Vehicular Tunnel officially became open for inspection.

The spectators propelled themselves as speedily as possible into its white tiled maw. Seven hours later, at one minute after midnight, the motor vehicles for which the tunnel was built began to pass...

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