LASAULX, A. von. Etudes Pétrographiques sur les Roches Volcaniques de l'Auvergne, translated by F. Gonnard, Clermont-Ferrand: Ferdinand Thibaud, 1875, 8°, PRESENTATION COPY, inscribed to verso of front wrapper: "To Lord Enniskillen with thankfull compliments the author von Lasaulx", 2 wood-engraved plates, one folding (title lightly spotted), contemporary half calf (front cover with scuff mark), original front wrapper bound in, bookplate. With 10 other works, including 7 pamphlets (4 presentation copies). (12)