1905. 757 pages. This is an ex-Library book. Half bound brown leather with purple cloth. Book has been rebound by library, with expected stamps and inscriptions. Graphs and charts throughout. Book is written in German. Volume 50. Pages have slight foxing, tanning and minor thumbing. Pages are water stained and warped to edges, but the text is unaffected. Ex libris plate on front pastedown. Hinges are cracked with exposed binding thread, however text block remains firm. Text block edges dusty and sunned. Boards have heavy edge wear with corner bumping. Moderate tanning to spine and edges with some crushing to spine ends. Leather peeling with loss to spine, edges, and corners. One of the spine labels is missing, with substantial area of loss to the remaining one. Water staining with bleaching spots overall. Book is bowed and forward leaning.