BRIEF OHNE UMSCHLAG Chamisso, Hermann von Author: Chamisso, Hermann von Recipient: Haeckel, Ernst Dating: 21.11.1857
BRIEF OHNE UMSCHLAG Baker, Ray Stannard Author: Baker, Ray Stannard Recipient: Haeckel, Ernst Corporation: The S. S. McClure Co. Dating: 22.06.1900
BRIEF OHNE UMSCHLAG Becker, Franz Johann Jakob Emil Author: Becker, Franz Johann Jakob Emil Recipient: Haeckel, Ernst Dating: 20.03.1908
BRIEF OHNE UMSCHLAG Altmann-Bronn, Ida Author: Altmann-Bronn, Ida Recipient: Haeckel, Ernst Dating: 31.08.1905
BRIEF OHNE UMSCHLAG Kraigher-Porges Josepha Author: Kraigher-Porges Josepha Recipient: Haeckel, Ernst Dating: 12.07.1900
BRIEF OHNE UMSCHLAG James, Constantin Author: James, Constantin Recipient: Haeckel, Ernst Dating: 07.03.1877
BRIEF OHNE UMSCHLAG Quillet, Aristide Author: Quillet, Aristide Recipient: Haeckel, Ernst Dating: 26.12.1912
BRIEF OHNE UMSCHLAG Rottenburg, Paul von Author: Rottenburg, Paul von Recipient: Haeckel, Ernst Dating: 10.01.1912