Page:The Library, volume 5, series 3.djvu/138

iz6 CO-OPERATION AMONG ones. The thirteen libraries already named (the eleven with Braunsberg and Posen) apply to one another as they like. The others must apply first to the University library of their province (in the province of West Prussia to Konigsberg, in the province of Posen to the Kaiser Wilhelm Biblio- thek, in the province of Brandenburg to the Royal Library), and only if the required book is not there, to the Royal Library or any other they think fit. 1 In this case, they add the negative answer of the University library of their province or the answer of the Auskunftsbureau. Manu- scripts and very valuable printed books are not brought into the system. In general, the libraries are not allowed to ask for books, if they possess a copy of them which a frequenter has borrowed, nor are they obliged to lend a book which is in daily use at their own place or which is not trans- portable by their own rules. Most books are lent for three weeks, 2 modern reviews, etc., 3 and volumes containing several pamphlets 4 for one week. 2 Prolongation may be permitted by the lending library. The borrowing library is re- sponsible for the borrowed book to the lending 1 Often after having inquired of the Auskunftsbureau. Each frequenter of each of the libraries admitted to the Prussian Leihverkehr may get information from the Central and the Supplement Catalogue without fee, if inquiring by the aid of the Leihverkehr (cf. note 3, p. 123). 2 In the Royal Library at Berlin : and four days for going to and fro. 3 In the Royal Library at Berlin : those published within the last ten years and all newspapers. 4 In the Royal Library at Berlin : books not yet bound also.