Title: Schweizer Flugtechniker und Ballon-Pioniere
Subjects: Aeronautics, Hot air balloons, Balloonists, Biography, History
Places: Switzerland
People: Samuel Johann Pauli (1766-1821), Jakob Degen (1760-1848), Eduard Spelterini (1852-1931), Auguste Piccard (1884-1962), Emil Messner (1875-1942)