Paris, Georges Chamerot, 1884. Folio (40.6 x 26.0 cm). Title page, 111 pp., 55 plates in chromolithography. Original printed wrappers.

This is a detailed and well-illustrated work, apparently meant to be a prospectus, on the mineralogical groundwater of the Caucasus. The plates show the geology, the waterworks, and the spa buildings, or buildings to be, of the region. Victor Edmond Léon Dru (1837-1904) was a French engineer and entrepreneur, who initiated artesian wells in Paris, Algeria and Russia. This work contains a thorough analysis of, apparently, existing and future projects in Russia. Uncut. Spine split in several segments, the spine cover a bit chipped. The plates are beautiful and clean. A very good copy. Uncommon, especially with the original printed wrappers. Not in any major bibliography.