1861. No edition remarks. 660 pages. No dust jacket. This is an ex-Library book. Pictorial paper covered boards with cloth spine. Fold-out black and white diagrams at rear. Ex library copy with associated labels, inserts, stamps and annotations. In German. Pages with some foxing and tanning, particularly to endpapers and textblock edges. Binding remains firm. Boards have heavy shelf wear with bumping and fraying to corners and crushing and fraying to spine ends. All surfaces tanned and sunned, particularly spine. Some heavy marks and staining to surfaces. Dents to board edges.