Carrells seem to have been usual in monasteries from very early times, not to have been introduced at a comparatively late date in order to ensure greater comfort. The earliest passage referring to them is that which I have already quoted[200], shewing that they were in use at Westminster between 1258 and 1283; at Bury S. Edmunds the destruction of the carrells is mentioned among other outrages in a riot in 1327[201]; they occur at Evesham between 1367 and 1379[202]; at Abingdon in 1383-84[203]; and at Christ Church, Canterbury, it is recorded among the good deeds of Prior Sellyng (1472-94), that in the south alley of the cloister "novos Textus quos Carolos ex novo vocamus perdecentes fecit"; words which Professor Willis renders "constructed there very convenient framed contrivances which are now-a-days called carols[204]." Their use--at any rate in some Houses--is evident from an injunction among the Customs of S. Augustine's, Canterbury, to the effect that the cellarer and others who rarely sit in cloister might not have carrells, nor in fact any brother unless he be able to help the community by copying or illuminating, or at least by adding musical notation[205]. They were in fact devices to provide a certain amount of privacy for literary work in Houses where there was no _Scriptorium_ or writing-room. At Durham, according to the author of _Rites_, they were used exclusively for reading. The above-mentioned Customs of S. Augustine's, written between 1310 and 1344, give a valuable contemporary picture of the organization of one of the more important cloister-libraries. The care of the presses is to be entrusted to the Precentor and his subordinate, called the Succentor. The former is to have a seat in front of the press--which doubtless stood against the wall--and his carrell is to stand at no great distance, on the stone between the piers of the arches next the cloister-garth. The Succentor is to have his seat and his carrell on the bench near the press--by which the bench which commonly ran along the cloister-wall is obviously meant. These arrangements are made "in order that these two officers, or at least one of them, may always be at hand to satisfy brethren who make any demand upon their time[206]." In other words, they were the librarian and sub-librarian, who were to be always ready to answer questions. It is clear that brethren were not allowed to handle the books as they pleased.