75/2396 [Paleontology and geology]. Lehmann, J.G. Traités de Physique, d'histoire naturelle, de mineralogie et de métallurgie. Paris, J.-T. Hérissant, 1759, 1st French ed., 3 vols., (2),XVI,419; XVI,402,(1); XXVII,(1),498,(4)p., 6 (fold.) engr. plates, contemp. unif. calf w. richly gilt spine w. mor. letterpiece and an unidentified gilt heraldic letterpiece, gilt boardedges, marbled edges.

- All vols. w. sm. stamp on title.

= 1. L'art des Mines ou Introduction aux connoissances nécessaires pour l'exploitation des mines métalliques. 2. Traité de la formation des Metaux, et de leurs matrices ou minieres 3. Essai d'une histoire naturelle de couches de la terre. DSB VIII, p. 146-148: "Lehmann thus entered into a period of extraordinary scientific activity, publishing his researches in chemistry, geology, and mineralogy. Of these, the most important and lasting were his geological studies. In geology Lehmann emphasized the importance of geological strata in determining the history of the earth (...) He thus may be considered the founder of stratigraphy; his attempt to establish the laws underlying the formation of the earth provided the basis for modern geology." SEE ILLUSTRATION PLATE CIV.