BRIEF OHNE UMSCHLAG Strasburger, Eduard Author: Strasburger, Eduard Recipient: Haeckel, Ernst Dating: 03.01.1869
BRIEF OHNE UMSCHLAG Strasburger, Eduard Author: Strasburger, Eduard Recipient: Haeckel, Ernst Dating: 09.01.1869
BRIEF OHNE UMSCHLAG Strasburger, Eduard Author: Strasburger, Eduard Recipient: Haeckel, Ernst Dating: 11.02.1869
BRIEF OHNE UMSCHLAG Siebold, Carl Theodor Ernst von Author: Siebold, Carl Theodor Ernst von Recipient: Haeckel, Ernst Dating: 08.03.1869
BRIEF OHNE UMSCHLAG Huxley, Thomas Henry Author: Huxley, Thomas Henry Recipient: Haeckel, Ernst Dating: 10.01.1869
BRIEF OHNE UMSCHLAG Huxley, Thomas Henry Author: Huxley, Thomas Henry Recipient: Haeckel, Ernst Corporation: The Royal School of Mines Dating: 10.01.1869
BRIEF OHNE UMSCHLAG Burg, Otto Author: Burg, Otto Recipient: Haeckel, Ernst Corporation: Berliner Handwerker-Verein Dating: 17.07.1869
BRIEF OHNE UMSCHLAG Weismann, August Author: Weismann, August Recipient: Haeckel, Ernst Dating: 27.12.1869