Author: Lugeon, M.
Title: Etude geologique sur le projet de Barrage du Haut-Rhône Français à Genissiat (près de Bellegard).
Description: Paris, Société Géologique de France, 1912. Large 4to (33.0 x 26.0 cm). 136 pp.; four photographic plates, 31 text figures, three folded geological profiles (one coloured) mounted on linen. Contemporary full morocco. Spine with five raised bands; compartments with gilt vignettes and title. Gilt inner dentelles. Marbled endpapers. Top edge gilt. Original printed front wrapper bound in. = The author's copy, in quite a luxurious binding. His stamp on the first blank recto and front wrapper top margin. Maurice Lugeon (1870-1953) was a Swiss geologist and member of the Royal Society. He was "...the pioneer of nappe tectonics. Named for Maurice Lugeon, the lugeon is a measure of transmissivity in rocks, determined by pressurized injection of water through a bore hole driven through the rock. One Lugeon (Lu) is equivalent to one litre of water per minute, injected into 1 metre of borehole at an injection pressure of 10 atmospheres"(Wikipedia). This work deals with a project of damming the upper Rhone river, and including nice views of the area. Published in the society's Mémoires, Série 4, volume 2(8). Front hinge starting near top end; paper remnant on front free endpaper verso; otherwise an excellent copy. Very uncommon, in particular in such an attractive state.

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