Max Weg, Leipzig, 1904.
33 cm. contemp boards, original front cover pasted down. 24 pp. 20 illustrations. "Veröffentlichung der vulkanologischen Abteilung des Grassi-Museums zu Leipzig". -(small libr label, library stamp on title, slightly bumped, pages slightly browned as usual, all pages small (5 mm) tear in foreedge margin, , slightly rubbed, otherwise good).