My enumeration of Cathedral libraries would be sadly incomplete if I did not say a few words about the splendid structure which is attached to the Cathedral of Rouen[255]. The Chapter possessed a respectable collection of books at so early a date as 1120; this grew, and, 29 July, 1424, it was decided to build "a study or library (_quoddam studium seu vnam librariam_)," which was completed in 1428. Fifty years afterwards--in 1477--it was decided that the library should be extended. The first thought of the Chapter was that it should be built of wood, and the purchase of good stout timber (_bona et grossa ligna_) is ordered. This plan, however, was evidently abandoned almost as soon as it was formed, for two years afterwards (20 April 1479) "the library lately erected" is mentioned. These words can only refer to the existing structure which is built wholly of stone. A week later (28 April) William Pontis, master-mason, was asked to prepare a design for a staircase up to the library. This he supplied on the following day. In June of the same year the Chapter had a serious difference of opinion with him on the ground that he had altered the design and exceeded the estimate. They came, however, to the wise conclusion that he should go on with the work and be requested to finish it with all dispatch. In the following spring (20 March 1480) it was decided to prolong the library as far as the street; and in 1481 (18 September) to build the beautiful stone gate surmounted by a screen in open-work through which the court is now entered. This was completed by the end of 1482. The whole structure had therefore occupied about five years in building. The library, together with a building of older date next to the Cathedral which serves as a sort of vestibule to it, occupies the west side of what is still called, from the booksellers' shops which used to stand there, _La Cour des Libraires_. The whole building measures 105 ft. in length, by 25 ft. in breadth. The library proper is lighted by six windows in the east wall, and by two windows in the north wall. The masonry of the wall under these windows and the two lancets by which it is pierced indicate that advantage had been taken of an earlier building to form the substructure of the library. The west wall must always have been blank. Access to the library was obtained directly from the transept by means of the beautiful stone staircase in two flights which Pontis built in 1479. This staircase leads up to a door marked BIBLIOTHECA which opens into the vestibule above mentioned. In 1788 a room was built over the library to contain the archives of the church, and the staircase was then ingeniously prolonged so as to reach the new second-floor. Unfortunately the minutes of the Chapter tell us nothing about the original fittings of this room[256]. In 1718 the books were kept in cupboards protected by wire-work, over which were the portraits of benefactors to the library[257].