International specialist mail-order business since 1971 in the geological and biological sciences. Printed subject catalogues available free on request. On-line catalogues available for browsing on our Internet website. - Additional stock of interesting and scarce books in various subjects: literature, history, geography & travel, the arts, philosophy, etc. displayed on-line only in the sites of Abebooks, Biblio, Maremagnum, and BookPursuit, and Booklooker.