Title: Alexander von Humboldt- Jean-Baptiste Boussingault, Briefwechsel
Subjects: Correspondence, Mining engineers, Biography, Agricultural chemists, Scientists, Naturalists, Description and travel, Humboldt, alexander von, 1769-1859, Engineers, biography, France, biography, Chemists, Scientists, biography, Germany, biography, South america, description and travel
Places: France, Germany, South America
People: J. B. Boussingault (1802-1887), Alexander von Humboldt (1769-1859)