XXXIII.

RAILWAY TUNNELS.

TUNNELS AMONG THE ANCIENTS.—HOW THEY WERE MADE.—MODERN TUNNELS AND THEIR LENGTH.—LAUGHABLE INCIDENTS IN RAILWAY TUNNELS.—THE TWO LOVERS.—THE ANXIOUS FRENCHMAN.—ROBBERS.—HOOSAC TUNNEL.—ITS HISTORY.—THE AUTHOR’S VISIT.—NATURE AND PROGRESS OF THE WORK.—AN EXPLOSION.—ACCIDENT FROM NITRO-GLYCERINE.—THE CENTRAL SHAFT.—THE TERRIBLE CALAMITY OF 1867. 492