This officer selected the quarries under the plain of Montsouris in the locality known as the Tombe-Issoire--it was said from a famous brigand of the time of Louis VII, who ravaged this neighborhood, because of their extent and their proximity to the city. It was proposed to deposit in this ossuary not only the bones from the Innocents, but from all the other cemeteries, charniers, and sepulchral chapels of Paris. On the 7th of April, 1786, the quarries were formally blessed by the clergy and consecrated to their new use, and on the same day the transportation of the bones from the Innocents was begun. It was carried on constantly, at the close of each day, in funerary cars covered with a pall and followed by surpliced priests, chanting the service for the dead. This operation, interrupted only during the heat of summer, was completed in less than fifteen months; and the catacombs--so called from this date--have since received a vast number of bones from other cemeteries and churches, and also of the victims of the many street revolutions of the capital. During the Revolution and the Terror, a number of bodies were also thrown in here, and down to 1810 no attempt was made to arrange the bones, which were piled up like rubbish. It is estimated that these subterranean crypts now contain the remains of nearly three millions of persons,--the guide-books say six.
In 1810, a new organization and rearrangement of the catacombs were carried out, the falling roofs were propped up, the galleries cleaned out, ventilated, and dried, and the bones all symmetrically arranged along the walls--the large bones of the arms and legs piled up like cord-wood, presenting their ends, and interrupted by occasional rows, or centre-pieces, or cornices of skulls, and the smaller bones thrown in behind them, between them and the wall, so as to be out of sight. Various attempts at grotesque or fanciful designs, wrought out with craniums and tibias, break the monotony of these grisly corridors. Between 1792 and 1814, the catacombs permitted the suppression of sixteen cemeteries, and they still receive the bones that are turned up in the course of various excavations in the city. Visitors were formerly admitted to explore them every day, but in consequence of the numerous accidents which happened, greater restrictions were imposed, and it is now permitted to make this visit only on the first and third Saturdays of each month, and when furnished with a permit obtained from the Préfet of the Seine. The entrance is on the Place Denfert-Rochereau, and the exit on Rue Dareau; the journey is made under the care of a guide, and the visitor--who is advised to wear sufficiently thick clothing and heavy shoes--is furnished with a candle and a holder for which he pays fifty centimes.