[Dauphiné] GUEYMARD (Émile). On the mineralogy, geology and metallurgy of the department of Isère. Grenoble, Baratier Frères et fils, 1830. One volume in-8, modern half-chagrin (binding signed J. Noblecourt). 219 pp, 1 folding map. Untrimmed. Scattered brown spots. Extremely rare first edition, complete with coloured fold-out geological map bound in fine. Jean François Emile GUEYMARD (1788-1869) was a former student of the Ecole polytechnique and the Ecole des mines de Paris. He ended his career in the Corps des Mines with the rank of Chief Engineer Director (23 March 1848), and his academic career as Dean of the Grenoble Faculty of Science.