Throughout the vicinity of Louviers, are the most undoubted symptoms of commercial prosperity; new houses every where erecting, and old ones undergoing improvement. But the streets of the town itself are, as usual, dirty and narrow, and the people of the lower orders more than commonly ragged and beggarly. It was impossible to mistake the nature of their occupations; so many of them had their faces and hands, and every part of their limbs and bodies that was visible, died of a bright blue.--The church at Louviers is very much injured, but very handsome; and though reduced to a nave with its four aisles it is still a spacious edifice. The south porch, which projects boldly in the form of a galilee, is scarcely to be excelled as a specimen of pointed architecture at its highest pitch of luxuriant beauty. Yet, even in this, the saints have been torn from their pedestals by the wanton violence of the Calvinists or democrats. The central tower is square and short: it is, however, handsome. Two windows, very similar to those of the tower of St. Romain, in Rouen cathedral, light it on either side; and saints, placed under canopies, ornament the angles behind the buttresses.--The great western door is closed, and the front defaced: the eastern end, likewise, is altogether modern.--Within, the same kind of architecture prevails as in the exterior, but the whole is so concealed, and degraded by ornaments in the worst of taste, and by painted saints in the most tawdry dresses, that the effect is disgusting. I never saw so great an array of wretched representations of the heavenly host: the stone images collected round the holy sepulchre, are even worse than those at Dieppe. Near the chapel of the sepulchre, however, are four bas-reliefs, attached to the wall, exhibiting different events in our Savior's life of good execution, and not in had taste: an open gallery of fillagree stone-work, under the central tower on the south side, is an object really deserving of admiration. M. Langlois has engraved the gable end of an old house at Louviers, said to have belonged to the Knights Templars. We found it used as an engine-maker's shop; and neither within nor without, could we discover any thing to justify his opinion, that it is a building of the twelfth or thirteenth century. On the contrary, the windows, which are double, under a flatly-pointed arch, and are all of them trefoil-headed, would rather cause it to be considered as erected two centuries later.