Christian Leopold of the book, manuscript and drawing of the Vesuvius

Self-hanging manuscript and independent drawing of the Vesuvius by Christian Leopold von Buch (26 April 1774, Stolpe a. d. Oder - 04 March 1853, Berlin), geologist, 22 November 1805. Leopold von Buch was one of the most important geologists of his time. He studied together with Alexander von Humboldt at the Bergademie Freiberg. First he was interested in volcanism, later fossils became his main field of research. At the end of 1848, von Buch was one of the founders of the German Geological Society. Alexander von Humboldt was among the participants at the constituent meeting in Berlin. In 1805, after his return from the American expedition, Alexander von Humboldt made a joint trip with Leopold von Buch and chemist and physicist Joseph Louis Gay-Lussac, who lead the three researchers to the Vesuvius. Here they collected rock samples and made measurements. In the repeated ascents of the mountain, Buch, who had already conducted investigations on the volcano in the previous year, was a local leader.