BRIEF OHNE UMSCHLAG Martens, Eduard von Author: Martens, Eduard von Recipient: Haeckel, Ernst Dating: 21.11.1859
BRIEF OHNE UMSCHLAG Martens, Eduard von Author: Martens, Eduard von Recipient: Haeckel, Ernst Dating: 03.03.1859
BRIEF OHNE UMSCHLAG Haeckel, Carl Gottlob Author: Haeckel, Carl Gottlob Recipient: Haeckel, Ernst Dating: 14.04.1859
BRIEF OHNE UMSCHLAG Haeckel, Carl Gottlob Author: Haeckel, Carl Gottlob Recipient: Haeckel, Ernst Dating: 02.11.1859
BRIEF OHNE UMSCHLAG Haeckel, Carl Gottlob Author: Haeckel, Carl Gottlob Recipient: Haeckel, Ernst Dating: 13.12.1859
BRIEF OHNE UMSCHLAG Quincke, Georg Author: Quincke, Georg Recipient: Haeckel, Ernst Dating: 17.12.1859
BRIEF OHNE UMSCHLAG Haeckel, Carl Gottlob Author: Haeckel, Carl Gottlob Recipient: Sethe, Anna Dating: 11.03.1859
BRIEF OHNE UMSCHLAG Haeckel, Carl Gottlob; Haeckel, Charlotte Author: Haeckel, Carl Gottlob; Haeckel, Charlotte Recipient: Sethe, Anna Dating: 12.09.1859