The heat of the water was 83° of Fahrenheit. In the theories with which the philosophers of the Continent have to feed their imaginations is that of a _central fire_, which is felt through all the strata, and which warms everything in proportion to its nearness to the centre. Thus, it was proposed to dig an Artesian well of three thousand feet, for the supply of hot water to the Jardin des Plantes and the neighbouring hospitals. It was supposed that, at this depth, the heat would range to upwards of 100° of Fahrenheit. But nothing has been done. Even the Well of Grenelle has rather disappointed the public expectation; of late the supply has been less constant, and the boring is to be renewed to a depth of two thousand feet. _The Napoleon Column._--This is the grand feature of the Place de Vendôme, once the site of the Hôtel Vendôme, built by the son of Henry IV. and Gabrielle d'Estrées; afterwards pulled down by Louis XIV., afterwards abandoned to the citizens, and afterwards surrounded, as it is at this day, with the formal and heavy architecture of Mansard. The "Place" has, like everything in Paris, changed its name from time to time. It was once the "Place des Conquêtes;" then it changed to "Louis le Grand;" and then it returned to the name of its original proprietor. An old figure of the "Great King," in all the glories of wig and feathers, stood in the centre, till justice and the rabble of the Revolution broke it down, in the first "energies" of Republicanism. But the German campaign of 1805 put all the nation in good humour, and the Napoleon Column was raised on the site of the dilapidated _monarch_. The design of the column is not original, for it is taken from the Trajan Column at Rome; but it is enlarged, and makes a very handsome object. When I first saw it, its decorations were in peril; for the Austrian soldiery were loud for its demolition, or at least for stripping off its bronze bas-reliefs, they representing their successive defeats in that ignominious campaign which, in three months from Boulogne, finished by the capture of Vienna. The Austrian troops, however, stoutly retrieved their disasters, and, as the proof, were then masters of Paris. It was possibly this effective feeling that prevailed at last to spare the column, which the practice of the French armies would have entitled them to strip without mercy. In the first instance, a statue of Napoleon, as emperor, stood on the summit of the pillar. This statue had its revolutions too, for it was melted down at the restoration of the Bourbons, to make a part of the equestrian statue of Henry IV. erected on the Pont Neuf. A _fleur-de-lis_ and flagstaff then took its place. The Revolution of 1830, which elevated Louis Philippe to a temporary throne, raised the statue of Napoleon to an elevation perhaps as temporary.