The Quest for the True Figure of the Earth: Ideas and Expeditions in Four ... - Michael Rand Hoare - Google Books

http://books.google.de/books?id=svgM0H3IlgwC&hl=de&source=gbs_navlinks_s

In the 1730s two expeditions set out from Paris on extraordinary journeys; the first was destined for the equatorial region of Peru, the second headed north towards the Arctic Circle. Although the eighteenth century witnessed numerous such adventures,…