SCHLAGINTWEIT (Adolph and Hermann) Neue Untersuchungen über die physicalische Geographie und die Geologie der Alpen. Leipzig, T. O. Weigel, 1854. Flat atlas, half cloth binding with worn corners. First edition of the atlas alone of this important work of topographical, meteorological, glaciological and geological data on the Monte Rosa massif. It is illustrated with 22 plates including 2 coloured maps, tables, sketches and diagrams, and coloured lithographed views including two large double-page views. 8 additional plates on translucent sheets provide explanations of the corresponding views. Wet stamp and handwritten ex-libris on title page, ex-libris Peter Obergfell on flyleaf. Also from the same publisher: - Untersuchungen über die Physicalische Geographie der Alpen in Ihren Beziehungen zu den Phaenomenen der Gletscher, zur Geologie, Meteorologie und Pflanzengeographie. Leipzig, Johann Ambrosius Barth, 1850. 1 volume in-4°, publisher's hardback (spine rebacked and endpapers renewed). First edition, illustrated with 2 coloured fold-out maps, a large fold-out table and 11 hors-texte plates, 4 of which are fold-outs, mostly in colour, plus 5 plates of explanations on translucent sheets. An important work on the geography, geology and glaciology of the eastern Alps. A good, complete copy. - Ueber den Geologischen bau der Alpen. Berlin, Wilhelm Hertz, 1852. 8° brochure, printed cover, illustrated with a folding colour plate in fine. - Another copy of this pamphlet, in recent paperback. The brothers Adolph (Munich 1829 - East Turkestan 1857) and Hermann (Munich 1826 - 1882) Schlagintweit were German scientists who carried out numerous geological explorations in the Alps, particularly in the Monte Rosa region. Together with their brother Robert, they led a mission to India and the Himalayas from 1854 to 1857. On this occasion, they explored the Nanga Parbat region in 1856. Hermann and Robert returned to Europe in early 1857, but Adolph stayed on to explore East Turkestan; mistaken for a Chinese spy, he was murdered in Kashgar in August 1857.