BRIEF OHNE UMSCHLAG Darwin, Charles Author: Darwin, Charles Recipient: Haeckel, Ernst Dating: 11.01.1875
BRIEF OHNE UMSCHLAG Darwin, Charles Author: Darwin, Charles Recipient: Haeckel, Ernst Dating: 13.11.1875
BRIEF OHNE UMSCHLAG Darwin, Charles Author: Darwin, Charles Recipient: Haeckel, Ernst Dating: 25.11.1875
BRIEF OHNE UMSCHLAG Lankester, Edwin Ray Author: Lankester, Edwin Ray Recipient: Haeckel, Ernst Dating: 19.10.1875
BRIEF OHNE UMSCHLAG Lankester, Edwin Ray Author: Lankester, Edwin Ray Recipient: Haeckel, Ernst Dating: 24.09.1875
BRIEF OHNE UMSCHLAG Lankester, Edwin Ray Author: Lankester, Edwin Ray Recipient: Haeckel, Ernst Dating: 13.03.1875