BRIEF [O.A.] Bariche, Alexandre de Author: Bariche, Alexandre de Recipient: Haeckel, Ernst Corporation: Les Savants Contemporains, Revue Critique Dating: 04.03.1879
BRIEF OHNE UMSCHLAG Darwin, Charles Author: Darwin, Charles Recipient: Haeckel, Ernst Dating: 12.02.1879
BRIEF OHNE UMSCHLAG Darwin, Charles Author: Darwin, Charles Recipient: Haeckel, Ernst Dating: 29.04.1879
BRIEF OHNE UMSCHLAG Darwin, Charles Author: Darwin, Charles Recipient: Haeckel, Ernst Dating: 15.07.1879
BRIEF OHNE UMSCHLAG Türcke, August Freiherr von Author: Türcke, August Freiherr von Recipient: Haeckel, Ernst Dating: 28.11.1879
