BRIEF OHNE UMSCHLAG Lankester, Edwin Ray Author: Lankester, Edwin Ray Recipient: Haeckel, Ernst Dating: 25.05.1870
BRIEF OHNE UMSCHLAG Moseley, Henry Nottidge Author: Moseley, Henry Nottidge Recipient: Haeckel, Ernst Dating: 24.04.1870
BRIEF OHNE UMSCHLAG Spencer, Herbert Author: Spencer, Herbert Recipient: Haeckel, Ernst Dating: 24.09.1870
BRIEF OHNE UMSCHLAG Darwin, Charles Author: Darwin, Charles Recipient: Haeckel, Ernst Dating: 23.06.1870
BRIEF OHNE UMSCHLAG Rolleston, George Author: Rolleston, George Recipient: Haeckel, Ernst Dating: 15.08.1870