TWO:"The History of the Decline and Fall of the Roman Empire," by Gibbon, began to appear in 1776, a few months before the death of Hume, and was not completed till 1788. It consisted of six ponderous quarto volumes, and now often occupies double that number of octavos. It is a monument of enormous labour and research, filling the long, waste, dark space between ancient and modern history. It traces the history of Rome from its Imperial splendour; through its severance into East and West; through its decadence under its luxurious and effeminate emperors; through the ravages of the invading hordes of the North, to the period when the nations of Europe began, in the dawn of a new morning, to rise from the depth of barbarism into life, form, and power. The faults of this great work are, that it is written, like Hume's "History of England," in the sceptical spirit of the period; and that it marches on, in one high-sounding, pompous style, with a monotonous step, over every kind of subject. The same space and attention are bestowed on the insignificance of the feeblest emperors, and the least important times, as on the greatest and most eventful. It is a work which all should read, but a large part of it will be waded through rather as a duty than a pleasure. Still, Gibbon holds his own indispensable position; no other man has yet risen to occupy it better.
TWO:Iron suspension bridges were also introduced towards the end of this reign. Chain bridges had been erected in China for nearly two thousand years, and rope bridges in India and South America still earlier. In England a foot-bridge of iron chains was erected at Middleton, over the Tees, in the middle of the eighteenth century. In 1816 a bridge of iron wire was thrown across the Gala Water; and another, on a different principle, the following year, was erected over the Tweed, at[193] King's Meadows. But now much greater and more complete works of the kind were to be executed. Captain (afterwards Sir Samuel) Brown introduced many improvements into these structures. He substituted iron ropes for hempen ones, thereby forming cable-chains, like those used in Wales on quarry tram-roads, and these he applied to suspension bridges. In 1819 he was commissioned to construct an iron suspension bridge over the Tweed, near Kelso, called the union Bridge, which he completed in 1820, at a cost of five thousand pounds. In 1827 the first suspension bridge was thrown over the Thames by Mr. William Tierney Clarke; and in 1818 Telford commenced his great work of throwing a suspension bridge over the Menai Strait, near Bangor, which he completed in 1825. The main opening of this stupendous work is five hundred and sixty feet wide, and one hundred feet above high-water mark. The length of the roadway of the bridge is one thousand feet. The cost was one hundred and twenty thousand pounds. This was Telford's chef-d'?uvre. But the same neighbourhood was destined to see a more stupendous structure span the Strait from the Welsh shore to Anglesey. This was the tubular railway bridge, connecting the London and Holyhead line, within view of Telford's elegant suspension bridge. This was erected by Robert Stephenson, from his own design, greatly improved by suggestions from William Fairbairn of Manchester. It was completed in October, 1850, at a cost of six hundred and twenty-five thousand eight hundred and sixty-five pounds. Further description of this great work is not proper here, as it belongs to a later date, but it seemed fit to mention it in passing, as an evidence of the progress of the engineering science in the reign of Victoria.
