The havoc made in the interior of the church by the 18th century architects is deplorable. Windows have been destroyed, piers have been stuccoed over, and pointed arches turned into round ones. The pillars are late Perpendicular, or rather Flamboyant, shafts without capitals; and round the nave, between the arches and the clerestory, runs a little frieze of foliage and quaint birds and beasts, a feature which is not common. All the bosses of the choir and apse are very richly decorated, and the vaulting is good, but both the choir and the _chevet_ have been sadly "improved." About 1753 the brothers Slodtz were commissioned to convert the thirteen pointed arches of the choir into round ones, and to encase the pillars in panellings of stucco, which was marbled and gilt, the last bay being profusely decorated with golden sun-rays. One of these unfortunate brothers, Michel-Angelo by name, designed the pulpit, a mass of palm-tree decoration, surmounted by a female figure of Religion; and to place this wondrous production, a whole bay of the nave had to be demolished. The year following three chapels were destroyed to make room for the new square, barn-like Chapel of the Communion; which, besides being beautified by the Slodtz brothers' sculptures, was further embellished with a picture by Charles Coypel. The modest sum paid to these miserable, so-called artists, for hacking the church to pieces, was 50,000 _écus_. [Illustration: SAINT-MERRI; NORTH-WEST DOOR.] The crypt is most interesting, and is said to have been a reproduction of the original one which contained the tomb of S. Merri. It was used for some time as a workshop by the cleaners of the church, and was the depository of brooms, brushes and lamps. It has a stumpy central column, from which spring the ribs of the vault, the capital being ornamented with vine-leaves. It is square, and divided into four parts. A few remains of recumbent tombs can be seen in the pavement; but of the monuments of Arnaud de Pomponne, ambassador of Louis XIV., and of Jean Chapelain, the author of _La Pucelle_, nothing remains. The crypt, with its solid central pillar, resembles that in the Louvre of the time of Philippe Auguste, which has lately been brought to light.