The classfied cataloging method worked out by Hans Wilhelm Eppelsheimer was unique and had extensive repercussions on subsequent Developments in the history of the classified catalog in Germany. (Author/NH)

Between 1900 and 1905, Rudolph Focke published a series of papers on classification theory and a draft of a code for the construction of classified catalogs. His work was the direct result of the reform of librarianship during the last decades of the nineteenth century. The large number of classification systems used by German university and…