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 Dating: 12.11.1898
BRIEF [O.A.] Lapouge, Georges Vacher de Author: Lapouge, Georges Vacher de Recipient: Haeckel, Ernst Corporation: Bibliothèque Universitaire de Rennes Dating: 22.12.1896