Reading between the LinesThe name of the game will be to leave the boundaries open and to close them only when the people we follow close them.Bruno Latour 1
. When the combined interests of commerce, abolition, and exploration catalyzed British support for the massive Niger Expedition of 1841, the ambitious Theodor Vogel managed to get himself appointed to the distinguished post of chief botanist. 2 It was a minor coup. The young Prussian had never actually been to the tropics. In fact, he had never been any closer to West Africa than western Germany, where the nearest thing to the tropical Niger was the distinctly temperate Rhine. 3 Nor had he much exposure to West African flora. His expertise was based on the study of a Brazilian collection conveniently ensconced in a herbarium in Berlin. But