Author: Jaeger, G. F. [Jäger]
Title: Beobachtungen und Untersuchungen über die regelmässigen Formen der Gebirgsarten mit Hinweisung auf ihre technische Benützung und auf ihre Bedeutung für die Oeconomie der Natur.
Description: Stuttgart, E. Schweizerbart, 1846. Folio (31.5 x 25.6 cm). viii, 67 pp.; seven lithographed plates. Contemporary blind quarter cloth over marbled boards. = Rare illustrated work on geology, petrography and mineralogy of mountains by the German medical doctor and palaeontologist and palaeobotanist Georg Friedrich [Von] Jaeger (or Jäger) (1785-1866), who was also the first to describe ichthyosaurs (see ADB, vol. 13, pp. 648-649). He refers in his introduction to Sedgwick, Murchison, Roth and others. Small pictorial fair label on front pastedown; occasional very weak foxing, otherwise an excellent copy. Cat. BM(NH) 2, p. 919. Not in Ward and Carozzi.

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