The librarian was granted a month's vacation, and the library was closed on Sundays and holy days, unless it should chance that a distinguished stranger desired to visit it, when leave was given him from sunrise to sunset, subject to the condition that he was not followed by a loud rabble. At all other times, the hours during which the library was open were from nine to eleven o'clock a.m., and from one to four o'clock p.m. Suspended on the wall was a large board inscribed with the names both of the books and the donors "lest oblivion, the stepmother of memory, should pluck from our breasts the remembrance of our benefactors." To the same intent thrice every quarter a solemn mass of the Holy Ghost, and once every quarter a requiem mass, were said at the altar of St. Katherine in the Church of the Blessed Virgin. Every night the books and the windows of the library were closed, and, with certain rare exceptions, books were not permitted to be removed. ACADEMIC CHAPTER VIII OF THE PRIVILEGE While money and books were the twin bases on which the fabric of the University reposed, it is plain that a great institution of the sort would involve the employment of numerous agencies not strictly concerned with the work of instruction, but engaged upon the not less necessary functions of maintaining order and ministering to the needs of the body. All persons so occupied were accounted as "of the privilege of the University," and were subject to the jurisdiction of the Chancellor. From an indenture between the University of Oxford and the Town, dated 1459, we find that the Privilege embraced: "The Chaunceller, alle doctours, maistres, other graduats, alle studients, alle scholers, and alle clerkes, dwellyng within the precint of the Universite, of what condicion, ordre or degree soever they be, every dailly continuell servant to eny of theym bifore rehersed belonging, the styward of the Universite wyth their menyall men, also alle Bedells with their dailly servants and their householdes, all catours, manciples, spencers, cokes, lavenders, povere children of scolers or clerkes, within the precinct of the said Universite, also alle other servants taking clothing or hyre by the yere, half yere, or quarter of the yere takyng atte leste for the yere vi. shillings and viij. pence, for the half iii. shillings and iv. pence, and the quarter xx. pence of any doctour, maister, graduat, scoler or clerc without fraud or malengyne; also, alle common caryers, bryngers of scolers to the Universite, or their money, letters, or eny especiall message to eny scoler or clerk, or fetcher of eny scoler or clerk fro the Universite for the tyme of such fetchyng or bryngyng or abidyng in the Universite to that entent." Parchment-makers, illuminators, scribes, barbers, and tailors were also, by convention, members of the Privilege.