To take the place of this absurd tunnel, a Thames Subway has been devised, starting at Tower Hill, and continuing under the bed of the river to a point near Blackfriar's Bridge. The Thames subway is in a manner similar to the Pneumatic Railway. Shafts are sunk on either side of the river, and vehicles constructed like a horse railway car, are used to convey passengers to and fro under the river, for a fare of two pence per head. These vehicles are lighted by lamps, and a conductor is attached to each car. Powerful engines at either end furnish the force which propels these underground vehicles.


[CHAPTER III.]

THE DOCKS, SHIPPING, AND COMMERCE OF THE PORT OF LONDON.

F you leave King William Street just at the foot of London Bridge, and turn to the left, you will find your way into a grouping of streets, narrow and steep, a few only of which admit of carriage and horse traffic.

This is the region of the world-renowned London Docks, the basins which hold the greatest commerce known to any city on the globe; a commerce before which the ancient traffic of Tyre, Sidon, Carthage, and Sicily, the granary of the ancient world, was as nothing.