The French Revolution cut short many undertakings, the collected materials for which fill hundreds of manuscript volumes in the Bibliothèque nationale de Paris and other libraries of France. There are at Paris 31 volumes of Berthereau's materials for the "Historians of the Crusades", not one in Latin and Greek, but in the oriental tongues; from them have been taken in great measure the "Recueil des historiens des croisade" whereof 15 folio volumes have been published by the Académie des Inscriptions. There exist also the preparations for an edition of Rufinus and one of Eusebius, and for the continuation of the Papal Letters and of the "Concilia Galliae". Dom Cafflaux and Dom Villevielle left 236 volumes of materials for a "Trésor généalogique". There are "Benedictine Antiquities" (37 vols.) (Claude Estiennot de la Serre), a "Monasticon Gallicanum" and a "Monasticon Benedictinum" (54 vols.) Of the "Histories of the Provinces of France" barely half a dozen were printed, but all were in hand, and the collections for the others fill 800 volumes of manuscripts. The materials for a geography of Gaul and France in 50 volumes perished in a fire during the Revolution.