My eyes were fixed with most interest upon the Observatory. It was my favourite quarter, and for forty years I had scarcely left it for more than a few months. Judge, therefore, of my surprise when I came to look more closely at it to find that the magnificent avenue of chestnuts between the Luxembourg and the Observatory was nowhere to be seen, that in its place were the gardens of convents. My indignation as an artist was aroused against these municipal misdeeds, but it was quickly suspended by still stranger feelings. I beheld a monastery in the midst of our beautiful orchard. The Boulevard St. Michel did not exist, nor did the Rue de Medici; instead I saw a confused mass of little streets, and I seemed to recognise the former Rue de l'Est and the Place St. Michel, where an ancient fountain used to supply water to the people of the faubourg, and I made out a number of narrow lanes which existed long ago. The cupolas and the two side wings of the Observatory had disappeared. By degrees, as I continued my observations, I discovered that Paris was indeed much changed. The Arc de Triomphe de l'Étoile, and all the brilliant avenues that meet there, had disappeared. There was no Boulevard de Sébastopol, no Station de l'Est, nor any other station, and no railway. The tower of St. Jaques was enclosed in a court of old houses, and the Column of Victory was reached that way. The Column of the Bastile was also absent, for I should easily have recognised the figure upon it. An equestrian statue filled the place of the Vendôme Column. The Rue Castiglione was an old green convent. The Rue de Rivoli had disappeared. The Louvre was either unfinished or partly pulled down. Between the Court of Francis I. and the Tuileries there were tumble-down old hovels. There was no obelisk in the Place de la Concorde; but I saw a moving crowd, though I was unable at first to distinguish the figures. The Madeleine and the Rue Royal were invisible. Behind the Isle of St. Louis I saw a small island. Instead of the outer Boulevards there was only an old wall, and the whole was enclosed by fortifications. In short, although I recognised the capital of France by some familiar buildings, I was aware of a marvellous metamorphosis, which had completely changed its aspect. [Sidenote: Time merely relative.]