BRIEF [O.A.] Lapouge, Georges Vacher de Author: Lapouge, Georges Vacher de Recipient: Haeckel, Ernst Dating: 01.06.1896
BRIEF [O.A.] Lapouge, Georges Vacher de Author: Lapouge, Georges Vacher de Recipient: Haeckel, Ernst Corporation: Bibliothèque Universitaire de Rennes Dating: 12.11.1896
BRIEF [O.A.] Lapouge, Georges Vacher de Author: Lapouge, Georges Vacher de Recipient: Haeckel, Ernst Corporation: Bibliothèque Universitaire de Rennes Dating: 07.10.1896
BRIEF [O.A.] Lapouge, Georges Vacher de Author: Lapouge, Georges Vacher de Recipient: Haeckel, Ernst Corporation: Bibliothèque Universitaire de Rennes Dating: 22.12.1896
BRIEF [O.A.] Döderlein, Ludwig Author: Döderlein, Ludwig Recipient: Haeckel, Ernst Corporation: Sammlung des Zoologischen Instituts Dating: 02.12.1896
BRIEF [O.A.] Schleicher, Fréres Author: Schleicher, Fréres Recipient: Haeckel, Ernst Dating: 02.09.1896
BRIEF [O.A.] Schleicher, Fréres Author: Schleicher, Fréres Recipient: Haeckel, Ernst Dating: 09.11.1896