But Canada, or rather the Grand Trunk Railway of Canada, can put forward the boast that it possesses the longest over-land-and-water tunnel in the world. The Victoria Railway Bridge is constructed across the River St. Lawrence just above the ancient city of Montreal. The entire length of this stupendous structure is 3,470 yards, or exactly 50 yards less than 2 miles. The tube is approached on each side by a solid abutment, that on the north side being 266 yards long, on the south 400 yards. Deducting these measurements from the total length of the bridge, the tunnel or tubular portion of it is 2,804 yards long, or 164 yards more than a mile and a-half. In addition to the abutments there are 24 piers of masonry which it is impossible to exceed in grandly massive strength and solidity. The current of the St. Lawrence runs where the bridge is constructed at a rate never less than six miles an hour, and in some parts of the stream its rate is ten. The real giant force, however, which the piers have to resist is the ice at its breaking up some time between the last ten days of each April and the first six or seven of each May. The late Mr. Robert Stephenson the engineer of this bridge, as well as those at the Menai Straits and at Conway, estimated the ice pressure on some of the central piers of the Victoria Bridge at six thousand tons each. It is therefore not to be wondered that there is no stone opposed to the current at each of these piers which weighs less than ten tons, and that all should be clamped together by massive bars of iron drilled into each block, and held fast for ever by molten lead poured into each interstice. The total amount of masonry in the bridge is 3,000,000 cubic feet, or about 22,000 tons. There are 25 tubes or spans of which 24 are 130 feet long each, and the centre, which is 60 feet above the surface of the water, is 242 feet long. The total amount of iron in the structure is 10,400 tons. The contractors for the bridge were Messrs. Peto & Betts, their resident engineer was Mr. James Hodges, and to him the chief merit in connection with the construction is due. Its cost was £1,350,000. It was opened for traffic at the period of the Prince of Wales’ visit to Canada and the United States in 1860.