Most of the volumes in this library were donations from both laity and clergy, but mainly from the former. The price of every volume is given. The founder himself presented one Missal valued at £20, and John Yve, "formerly a fellow of this College, bequeathed a great Portiphoriam for laying before the senior fellow standing on the right hand of the upper stall," valued at an equal amount. The York contract, previously quoted, shows precisely how much illumination could be obtained for much less than one pound; and we may therefore form from it a tolerable idea of the magnificence of volumes upon the production of which such large sums were expended. The student will find this catalogue well repay his careful examination. During the last half of the 14th century and the beginning of the 15th, the art of illumination received a great impulse in France, from the magnificent patronage bestowed upon it by Jean, Duc de Berri, brother of Charles V. Of his unique library, which excited the envy of all the princes of his time, and stimulated especially Philip the Bold, Duke of Burgundy, and the great Duke of Bedford, to enter into competition with him, many magnificent specimens still remain--such as his Psalter, his two Prayer-books, and his copy of the "Merveilles du Monde."[69] French illumination attained perfection in these works, and in some few specimens of the more decidedly Renaissance period, such as the unsurpassed "Hours of Anne of Brittany," executed about the year 1500: all of these are models for the study of the illuminator of the 19th century, since in them gaiety and charm of ornament will be found united to a style of miniature-painting of real excellence in art. In the MSS. of the period of Jean de Berri, we meet with the perfection of that lace-like foliation known as the Ivy pattern--one that attained an extraordinary popularity in France, England, and the Netherlands. In the illuminations of both France and England, during the 14th and first half of the 15th centuries, the application of raised and highly-burnished gold became a leading feature, and reached its highest pitch of perfection. When used, as it frequently was, as a ground for miniature subjects and ornaments, it was frequently diapered in the most brilliant and delicate manner. This diapered background gave way at length to an architectural, and, ultimately, under the influence of the Italian school and that of the Van Eycks, to a landscape one.