Some of the finest French examples extant are those which were executed for Henry II. and Diana of Poitiers, Duchess of Valentinois. Both were ardent bibliophiles, and both indulged in very sumptuous bindings for their books. Some of the chief treasures in our great libraries to-day are the beautiful volumes which Henry presented to the duchess, and which are ornamented with the royal lilies of France, accompanied by the bows and arrows and crescents which were Diana's own badges and the initials of the king and the duchess. Catherine de Medicis also was an enthusiastic book collector, which may surprise those who think that a person who is devoted to books is necessarily harmless. Some of her books she brought to France as part of her dowry, others she acquired by fair means or foul as was most convenient, and to their bindings she paid particular attention and kept a staff of bookbinders in her employ. To such a pitch of extravagance did the bibliophiles of the period go in the binding of their books, that in 1583 Henry III. of France decreed that ordinary citizens should not use more than four diamonds to the decoration of one book, and the nobility not more than five. The king himself, however, was as extravagant as any of his subjects, at any rate as regards the designs he favoured. Many of his books are clad in black morocco, bearing representations of skulls, cross-bones, tears, and other melancholy emblems. He developed his taste for these strange decorations, it is said, when, as Duke of Anjou, he loved and lost Mary of Clèves. The early printers at first executed their own bookbinding, but presently left it to the stationers. It was generally only the larger works which they thought worth covering, and the small ones were simply stitched. Antony Koburger, of whom mention has already been made, bound his own books and ornamented them in a style peculiarly his own. Caxton bound his according to the prevailing fashion, with leather sides, plain or blind-tooled with diagonal lines, forming diamond-shaped compartments in each of which is stamped a species of dragon. About the sixteenth century it became fashionable to have one's books "Full goodly bound in pleasant coverture Of damask, satin, or else of velvet pure,"