BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: [Haeckel, Julius] Dating: 16.02.1906
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Haeckel, Julius Corporation: Zoologisches Institut der Universität Jena Dating: 04.12.1906
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Holgers, Maria Corporation: Zoologisches Institut der Universität Jena Dating: 13.08.1906
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Schwarz, Arthur Corporation: Zoologisches Institut der Universität Jena Dating: 03.02.1906
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Schwarz, Arthur Dating: 26.02.1906
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Koehler, Waldemar Dating: 30.06.1906
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Koehler, Waldemar Dating: 20.03.1906
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Koehler, Waldemar Dating: 09.07.1906
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Koehler, Waldemar Dating: 16.07.1906
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Koehler, Waldemar Dating: 02.11.1906
