The account books of the monks of Ely showed that in the year 1300 they purchased five dozen sheets of parchment, four pounds of ink, eight calf-skins, four sheep-skins, five dozen sheets of vellum, and six pairs of book clasps. In the same year they paid six shillings for a _Decretal_ and two shillings for a _Speculum Gregor._ In 1329, the Precentor received six shillings and seven pence with which he was instructed to go to Balsham to purchase books. In the same year, four shillings were paid for twelve iron chains (used, of course, for fastening the books safely to the reading-desks). Between 1350 and 1356, the purchases appear to have included no less than seventy dozen sheets of parchment and thirty dozen sheets of vellum.[237] Prince Borwin, of Rostock, in 1240 presented the monastery of Dargun with a hide of land, the proceeds of which were to be used for the repairing and preservation of the books in the library.[238] Adam, treasurer of the Chapter of Rennes, in 1231, presented his library to the abbey of Penfont, with the condition that the books were never to be diverted from the abbey, and that copies were to be lent only against adequate pledges. In 1345, a library was founded in the House of the German Brothers of Beuggen, near Rheinfelden, through the exertions of Wulfram of Nellenberg. He directed that all books left by deceased Brothers throughout Elsass were to be brought to this library, and the living Brothers were also earnestly urged to present their own books to the same collection.[239] The great library of the monastery of Admunt was catalogued in 1380 by Brother Peter of Arbonne. The Chapter of S. Pancras, in Leyden, received in 1380, through a bequest of Philip of Leyden, a collection of eighty manuscripts, the catalogue of which has been preserved.[240] As before indicated, the Monastery Reform, which was instituted with the beginning of the fifteenth century, exercised a very decided influence upon the interest in books and upon the development of libraries. In Tegernsee, where the once noted library had fallen into ruins, the Abbot Casper (1426-1461) reorganised it, restored such of the old manuscripts as were still in existence, bought new codices, and put to work a number of hired scribes. His successor, Conrad V., carried on the work actively and purchased for the sum of eleven hundred pounds heller no less than 450 volumes, in addition to which he secured a number of gifts or devout presents.[241]