BRIEF OHNE UMSCHLAG Dorsch, Hannah Author: Dorsch, Hannah Recipient: Haeckel, Ernst Dating: 14.02.1906
BRIEF OHNE UMSCHLAG Dorsch, Hannah Author: Dorsch, Hannah Recipient: Haeckel, Ernst Dating: 08.03.1906
BRIEF OHNE UMSCHLAG Loewenstein, Adolf; Goßrau, Carl Author: Loewenstein, Adolf; Goßrau, Carl Recipient: Haeckel, Ernst Corporation: Deutsche Verlags-Anstalt Dating: 14.04.1906
BRIEF OHNE UMSCHLAG Dodel-Port, Arnold Author: Dodel-Port, Arnold Recipient: Haeckel, Ernst Dating: 15.02.1906
BRIEF OHNE UMSCHLAG Dodel-Port, Arnold Author: Dodel-Port, Arnold Recipient: Haeckel, Ernst Dating: 14.10.1906
BRIEF OHNE UMSCHLAG Grober, Julius Author: Grober, Julius Recipient: Haeckel, Ernst Dating: 24.09.1906
BRIEF OHNE UMSCHLAG Fürbringer, Max Author: Fürbringer, Max Recipient: Haeckel, Ernst Dating: 11.02.1906
BRIEF OHNE UMSCHLAG Fürbringer, Max Author: Fürbringer, Max Recipient: Haeckel, Ernst Dating: 08.03.1906
BRIEF OHNE UMSCHLAG Friederici, Erna Author: Friederici, Erna Recipient: Haeckel, Ernst Dating: 14.02.1906