 But the most important document of this kind, the volume called "The Ancient Monuments, Rites and Customs of the Monastical Church of Durham before the Suppression", written in 1593, exists in several manuscript copies and has been printed and edited on various occasions, lastly by the Surtees Society (vol.CVII, 1903; see bibliography).It is a detailed description of the fabrica ecclesiae of the cathedral, but also of the various rites, ceremonies and special customs carried out by the monks who served it.