BRIEF [O.A.] Haeckel, Ernst Author: Haeckel, Ernst Recipient: Haeckel, Charlotte [Mutter] Dating: 25.06.1871
BRIEF [O.A.] Haeckel, Ernst Author: Haeckel, Ernst Recipient: Haeckel, Charlotte [Mutter] Dating: 30.06.1871
BRIEF [O.A.] Haeckel, Ernst Author: Haeckel, Ernst Recipient: Haeckel, Charlotte [Mutter] Dating: 10.07.1871
BRIEF [O.A.] Haeckel, Ernst Author: Haeckel, Ernst Recipient: Haeckel, Charlotte [Mutter] Dating: 21.07.1871
BRIEF [O.A.] Haeckel, Ernst Author: Haeckel, Ernst Recipient: Haeckel, Charlotte [Mutter] Dating: 03.08.1871
BRIEF [O.A.] Haeckel, Ernst Author: Haeckel, Ernst Recipient: Haeckel, Charlotte [Mutter] Dating: 29.09.1871
BRIEF [O.A.] Haeckel, Ernst Author: Haeckel, Ernst Recipient: Haeckel, Charlotte [Mutter] Dating: 07.10.1871
ZIRKULARBRIEF Haeckel, Ernst Author: Haeckel, Ernst Recipient: Schmidt, Adolf et al. Corporation: Philosophische Fakultät der Universität Jena Dating: 12.11.1871
ZIRKULARBRIEF Haeckel, Ernst Author: Haeckel, Ernst Recipient: Bursian, Conrad et al. Corporation: Philosophische Fakultät der Universität Jena Dating: 12.11.1871
ZIRKULARBRIEF Haeckel, Ernst Author: Haeckel, Ernst Recipient: Stickel, Johann Gustav et al. Corporation: Philosophische Fakultät der Universität Jena Dating: 05.10.1871