BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Haeckel, Charlotte Dating: 19.11.1852
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Haeckel, Carl Gottlob; Haeckel, Charlotte Dating: 18.10.1855
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Haeckel, Carl Gottlob; Haeckel, Charlotte Dating: 23.10.1855
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Haeckel, Carl Gottlob; Haeckel, Charlotte Dating: 27.08.1856
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Haeckel, Charlotte Dating: 01.08.1855
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Haeckel, Carl Gottlob; Haeckel, Charlotte Dating: 01.06.1853
BRIEF OHNE UMSCHLAG Kölliker, Albert von Author: Kölliker, Albert von Recipient: Haeckel, Ernst Dating: 03.04.1865
BRIEF OHNE UMSCHLAG Kölliker, Albert von Author: Kölliker, Albert von Recipient: Haeckel, Ernst Dating: 24.07.1882
BRIEF OHNE UMSCHLAG Kölliker, Albert von Author: Kölliker, Albert von Recipient: Haeckel, Ernst Dating: 06.07.1887
BRIEF OHNE UMSCHLAG Kölliker, Albert Author: Kölliker, Albert Recipient: Haeckel, Ernst Dating: 23.12.1888
