Appended to the tract is a short Latin account, also by Dury, of the Duke of Brunswick's library at Wolfenbuttel, famous on many grounds, and especially for having had Lessing as its librarian. It appears that on May 21, 1649, it was estimated to contain 60,000 treatises by 37,000 authors, bound in 20,000 volumes, all collected since 1604. It must therefore have been administered with an energy corresponding to the demands of Dury, who concludes his enthusiastic account with an aspiration which every librarian will echo on behalf of the institution with which he is himself connected:—
"Faxit Deus, ut Thesaurus hie rerum divinarum æternarum sit et ipse æternus, neque prius quam mundi machina laboret aut intercidat."
It will have been observed that Dury's suggestions have reference solely to university libraries. The conception of a really popular library did not then exist, and it may be doubted whether in any case even one so much in advance of his time could have reconciled himself to the idea of a collection where every description of literature, embodying every variety of opinion, should be indiscriminately accessible to every condition of men. But this very limitation of his views should render his admonition, and his lofty standard of the librarian's duty, more interesting and significant to the librarians of the nineteenth century. For if the advising function was rightly deemed so important in him who had to consult with university professors, men probably of more learning
