On crossing these bridges, it has often occurred to me, how much the Parisians must envy us the situation of our metropolis. If the Seine, like the Thames, presented the advantage of braving the moderate winds, and of conveying, by regular tides, the productions of the four quarters of the globe to the quays which skirt its banks, what an acquisition would it not be to their puny commerce! What a gratification to their pride to see ships discharging their rich cargoes at the foot of the _Pont de la Concorde_! The project of the canal of Languedoc must, at first, have apparently presented greater obstacles; yet, by talents and perseverance, these were overcome at a time when the science of machinery of every description was far less understood than it is at the present moment. It appears from the account of Abbon, a monk of the abbey of St. Germain-des-Prés, that, in the year 885, the Swedes, Danes, and Normans, to the number of forty-five thousand men, came to lay siege to Paris, with seven hundred sail of ships, exclusively of the smaller craft, so that, according to this historian, who was an eye-witness of the fact, the river Seine was covered with their vessels for the space of two leagues. Julius Cæsar tells us, in the third book of his Commentaries, that, at the time of his conquest of the Gauls, in the course of one winter, he constructed six hundred vessels of the wood which then grew in the environs of Paris; and that, in the following spring, he embarked his army, horse and foot, provisions and baggage, in these vessels, descended the Seine, reached Dieppe, and thence crossed over to England, of which, he says, he made a conquest. About forty years ago, the scheme engaged much attention. In 1759, the Academy of Sciences, Belles-Lettres, and Arts of Rouen, proposed the following as a prize-question: "Was not the Seine formerly navigable for vessels of greater burden than those which are now employed on it; and are there not means to restore to it, or to procure it, that advantage?" In 1760, the prize was adjourned; the memoirs presented not being to the satisfaction of the Academy. In 1761, the new candidates having no better success, the subject was changed. However, notwithstanding this discouragement, we find that, on the 1st of August, 1766, Captain Berthelot actually reached the _Pont Royal_ in a vessel of one hundred and sixty tons burden. When, on the 22d of the same month, he departed thence, loaded with merchandise, the depth of the water in the Seine was twenty-five feet, and it was nearly the same when he ascended the river. This vessel was seven days on her passage from Rouen to Paris: but a year or two ago, four days only were employed in performing the same voyage by another vessel, named the _Saumon_.