XLV.

THE TUNNELS, AND THE UNDERGROUND RAILROAD IN LONDON.

DESCRIPTION OF THE LONDON HARBORS.—THE CATHARINE DOCK.—ENORMOUS STORE-HOUSES.—HOW THE TUNNEL WAS BUILT.—PLAN OF THE FRENCH ENGINEER, ISAMBERT BRUNEL.—HOW THE WORK WAS CHECKED BY A BREAK IN THE BED OF THE THAMES.—SIX LIVES LOST.—REMARKABLE RESCUE OF THE SON OF MR. BRUNEL.—ENORMOUS LABOR AND STRUGGLE AGAINST THE ELEMENTS.—TRIUMPH AT LAST.—THE MOST REMARKABLE RAILROAD IN THE WORLD.—LONDON CROSSED UNDERGROUND BY A SERIES OF TUNNELS.—HOW LIGHT AND AIR IS PRODUCED.—THE NEWEST IMPROVEMENTS OF THE ROAD.—THE CARS PASSING UNDER THE DWELLING OF THE DEAD. 662