1899. 760 pages. This is an ex-Library book. Half bound brown leather with purple cloth covered boards. Includes graphs and charts throughout. Book rebound by library, with expected inserts, stamps and inscriptions. Book is written in German. Volume 30. Pages are noticeably marked with pronounced tanning, and thumbing. Heavier to endpapers. Frontispiece's tissue guard is creased and foxed. Cracks to hinges, exposing binding thread. A few dog-eared corners. Water stains to page edges have not affected the text. Boards have heavy edge wear with corner bumping. Large splits to joints, causing spine top edge to be loose. Leather peeling with marks and scratches to spine, edges, and corners. Small area of loss to spine labels and corners. Brown marks and water staining overall. Book is slightly bowed and forward leaning.