BRIEF OHNE UMSCHLAG Dorsch, Hannah Author: Dorsch, Hannah Recipient: Haeckel, Ernst Dating: 14.05.1908
BRIEF OHNE UMSCHLAG Dorsch, Hannah Author: Dorsch, Hannah Recipient: Haeckel, Ernst Dating: 08.03.1906
BRIEF OHNE UMSCHLAG Dorsch, Hannah Author: Dorsch, Hannah Recipient: Haeckel, Ernst Dating: 09.01.1907
BRIEF OHNE UMSCHLAG Dodel-Port, Arnold Author: Dodel-Port, Arnold Recipient: Haeckel, Ernst Dating: 14.02.1904
BRIEF OHNE UMSCHLAG Dodel-Port, Arnold Author: Dodel-Port, Arnold Recipient: Haeckel, Ernst Dating: 31.10.1904
BRIEF OHNE UMSCHLAG Dodel-Port, Arnold Author: Dodel-Port, Arnold Recipient: Haeckel, Ernst Dating: 07.07.1905
BRIEF OHNE UMSCHLAG Dodel-Port, Arnold Author: Dodel-Port, Arnold Recipient: Haeckel, Ernst Dating: 14.10.1906
BRIEF OHNE UMSCHLAG Dodel-Port, Arnold Author: Dodel-Port, Arnold Recipient: Haeckel, Ernst Dating: 14.02.1907
BRIEF OHNE UMSCHLAG Fürbringer, Max Author: Fürbringer, Max Recipient: Haeckel, Ernst Dating: 18.08.1900
