This great work, which, for solidity of construction, durability of material, and beauty of design, is worthy of the Metropolis of the Empire, was commenced early in 1852, but was not completed till the summer of 1870. Viewed in connection with the benefits to public health and convenience, by the improvement of the course of the Thames, and the removal of the mud banks formerly disfiguring the shores, the Embankment may be truly said to be the greatest public work undertaken in London in modern times. Portions of the footway had been previously open for passengers, and improvements have been since made in the approaches and in laying out ornamental grounds, but the completion of the roadway, from Westminster to Blackfriars, sufficiently justified the grand State ceremony with which the Embankment was opened, on the 13th of July, 1870, by the Prince of Wales. On that day, the Prince, accompanied by the Princess Louise, and attended by the Great Officers of the Household, opened the Embankment on behalf of Her Majesty the Queen. Five Royal carriages, with an escort of the Royal Horse Guards, proceeded from Marlborough House, by the Mall, Whitehall, and Parliament Street to Westminster Bridge, where they entered the embankment. Here the procession was joined by the carriages containing the Chairman and members of the Metropolitan Board of Works. At Hungerford Bridge an address was presented by the Chairman, Sir John Thwaites. The Royal procession went as far as Blackfriars Bridge, and then returned to Westminster Bridge, when the Prince, amidst the cheers of the multitude, and the salutes of artillery, declared the Embankment to be open. The reply to the address read by the Prince, was as follows:-- "Gentlemen,--It is a source of great regret to me, as I am sure it cannot fail to be to you, that the Queen is unable to be present, according to her original intention, at this interesting ceremony. In her name I thank you for your loyal address, and express to you the satisfaction with which she regards the completion of this great work. We must all rejoice that while the Embankment and the noble roadway, which I am happy this day to open in the name of Her Majesty, add largely to the beauty and convenience of the Metropolis, the works connected with them may be expected materially to diminish the sources of disease and suffering to the inhabitants of this bank of the Thames. In no public work of this vast capital has the liberal and enterprising spirit of its citizens and the genius and resources of our civil engineers been more signally displayed. I am commanded by the Queen to congratulate you cordially on the issue of your labours in undertakings which promise to be so enduring and so beneficent."