The books are attached to the desk by the following process. A chain was taken about 12 inches long, more or less, consisting of long narrow links of hammered iron. These links exactly resemble, both in shape and size, those of a chain which may still be seen in the library of the Grammar School at Guildford, Surrey[316]. This chain, of which a piece is here figured (fig. 58), was probably made in 1586, or only 23 years after the building of the library at Zutphen. It terminates, like those at Zutphen (fig. 59), in a swivel (to prevent entanglement), attached to the ring which is strung upon the bar. The attachment of the chain to the book was effected by means of a piece of metal bent round so as to form a loop through which the last link of the chain was passed. The ends of the loop, flattened out, were attached by nail or rivet to the edge of the stout wooden board which formed the side of the book. This mode of attachment will be best seen in the volume which I figure next (fig. 60)--a collection of sermons printed at Nuremberg in 1487. It is believed to have once belonged to a Dominican House at Bamberg, in the library of which it was chained[317]. [Illustration: Fig. 58. Piece of chain, shewing the ring attached to the bar, the swivel, and one of the links, actual size. Guildford.] The iron loop in this specimen (fig. 60) is fastened to what I call the right-hand board of the book; by which I mean the board which is to the right hand of a reader when the book lies open before him; but the selection of the right-hand or the left-hand board depended on individual taste. Further the mode of attachment is never the same in two examples. The iron and rivets are often clumsy, and do considerable damage to the leaves, by forcing them out of shape and staining them with rust. In this method of chaining no provision is made for removing any book from the desk when not wanted, and placing it on a shelf beneath the desk, as was done in some Italian modifications of the system. Each volume must lie on the desk, attached by its chain, like a Bible on a church-lectern. The smallest number of volumes on any desk at Zutphen is six; the largest, eleven; the total, 316. Most of those on the south side of the room were printed during the first half of the sixteenth century; those on the north side are much later, some as late as 1630. I did not see any manuscripts. [Illustration: Fig. 59. Piece of the iron bar, with chain, Zutphen.] [Illustration: Fig. 60. Chained book, from a Dominican House at Bamberg, South Germany.]