BRIEF [O.A.] Sloman, Robert Miles jr. Author: Sloman, Robert Miles jr. Recipient: Haeckel, Ernst Dating: 27.02.1902
BRIEF [O.A.] Frazer, Persifor Author: Frazer, Persifor Recipient: Haeckel, Ernst Corporation: Geologist and Chemist Dating: 24.01.1902
BRIEF [O.A.] Frazer, Persifor Author: Frazer, Persifor Recipient: Haeckel, Ernst Corporation: Geologist and Chemist Dating: 13.03.1902
BRIEF [O.A.] Frazer, Persifor Author: Frazer, Persifor Recipient: Haeckel, Ernst Corporation: Geologist and Chemist Dating: 20.04.1902
BRIEF [O.A.] Frazer, Persifor Author: Frazer, Persifor Recipient: Haeckel, Ernst Corporation: Geologist and Chemist Dating: 30.09.1902
BRIEF [O.A.] Frazer, Persifor Author: Frazer, Persifor Recipient: Haeckel, Ernst Corporation: Geologist and Chemist Dating: 13.11.1902
BRIEF [O.A.] Frazer, Persifor Author: Frazer, Persifor Recipient: Haeckel, Ernst Corporation: Geologist and Chemist Dating: 14.11.1902
BRIEF [O.A.] Edler, Wilhelm Author: Edler, Wilhelm Recipient: Haeckel, Ernst Corporation: Landwirtschaftliches Institut der Universität Dating: 12.08.1902