POSTKARTE Grazie, Marie Eugenie delle Author: Grazie, Marie Eugenie delle Recipient: Haeckel, Ernst Dating: 22.08.1903
BRIEF [O.A.] Gargantini, Cesare Author: Gargantini, Cesare Recipient: Haeckel, Ernst Dating: ??.02.1903
BRIEF [O.A.] Goez, Author: Goez, Recipient: Haeckel, Ernst Corporation: Deutsche Schiller-Stiftung Dating: 12.09.1903
BRIEF [O.A.] Gaedertz, Karl Theodor Author: Gaedertz, Karl Theodor Recipient: Haeckel, Ernst Dating: 27.06.1903
BRIEF OHNE UMSCHLAG Gompertz, Julius Author: Gompertz, Julius Recipient: Haeckel, Ernst Dating: 08.11.1903
BRIEF [O.A.] Gutmann, Herm... A... Author: Gutmann, Herm... A... Recipient: Haeckel, Ernst Dating: 24.05.1903
