ESSAI GÉOLOGIQUE SUR L’ÉCOSSE Paris, Mme Ve Courcier, Libraire pour les Sciences... n.d. but
1820. Large 8vo, pp. x,  addenda, 519, ; with nine folding lithograph plates, numbered plates 1-7 and with 2 unnumbered maps, the second hand-coloured; foxed and lightly soiled throughout, with faint dampstain affecting upper corners of final few leaves, upper corners of plate 7 and hand-coloured maps with discrete paper repairs; faint illegible library stamp on half-title and with booksellers label 'Librairie des Sciences Générales, H. Bécus' [Paris] dated November 1896 inside wrapper; uncut, and largely unopened in the original plain pink wrappers, rebacked retaining some of the original spine, title in ms on upper wrappers, and faintly visible on spine, covers a little soiled, and slightly dog-eared; First edition, of the first account of the geology of Scotland. Born in Hamburg to Swiss parents, Boué (1794-1881) studied medicine at the University of Edinburgh (MD 1817). Whilst there he became interested in geology, the study of which he would dedicate the rest of his life, through the influence of his teacher, the mineralogist Robert Jameson, and indeed the present work is dedicated to Jameson.
Boué's rambles throughout Scotland allowed him to form his own conclusions as to the origin and age of the many igneous rocks of that country. Geikie describes the work as being remarkable and ahead of its time, notably with regards to his discussion of trappean rocks. His acute eyes recognised the volcanic nature of the great series of “roches feldspathiques et trappéennes” of central Scotland, which he claimed to mark eruptions in the time of the Old Red Sandstone. He introduced for the first time, into the geological table for Scotland, a division entitled “Terrain Volcanique,” in which he included not only the younger basalts of the Inner Hebrides which had been described by Faujas St. Fond, Macculoch and others, but also the basalts, andesites, trachytes, tuffs and other rocks intercalated in the Carboniferous system.
Bibliography: Challinor, History of British Geology, 96; Geikie, The Founders of Geology, p. 264; Ward and Carozzi, Geology Emerging, 270.