Cotton Library - Classification

Classification

Sir Robert Cotton had organised his library according to the case, shelf and position of a book. Each bookcase in his library was surmounted by a bust of various Caesars, and his scheme worked by Caesar-Shelf letter-Volume number from end. Thus, the two most famous of the manuscripts from the Cotton library are "Cotton Vitellius A.xv" and "Cotton Nero A.x." In Cotton's own day, that meant "Under the bust of Vitellius, top shelf (A), and count fifteen over," for the Liber Monstrorum of the Beowulf manuscript, or "Go to the bust of Nero, top shelf, tenth book" for the manuscript containing all the works of the Pearl Poet. In the British Library, these priceless books are still catalogued by these call numbers.