BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Kautsky, Karl Dating: 15.11.1882
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Strasburger, Eduard Dating: 08.11.1882
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Strasburger, Eduard Dating: 06.09.1882
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Besant, Annie Dating: 04.11.1882
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Darwin, Francis Dating: 24.04.1882
BRIEF OHNE UMSCHLAG Mengden, Nicolai Alexandrovitch Baron von Author: Mengden, Nicolai Alexandrovitch Baron von Recipient: Darwin, Francis Dating: 09.09.1882
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Darwin, Francis Dating: 28.07.1882
