BRIEF [O.A.] Orton, Louis J... Author: Orton, Louis J... Recipient: Haeckel, Ernst Dating: 07.07.1914
BRIEF [O.A.] Neumann, H... J... Author: Neumann, H... J... Recipient: Haeckel, Ernst Dating: 17.02.1914
BRIEF OHNE UMSCHLAG Schmitz, L. Dora Author: Schmitz, L. Dora Recipient: Haeckel, Ernst Dating: 14.02.1914
BRIEF OHNE UMSCHLAG Schmitz, L. Dora Author: Schmitz, L. Dora Recipient: Haeckel, Ernst Dating: 26.05.1914
BRIEF OHNE UMSCHLAG Schmitz, L. Dora Author: Schmitz, L. Dora Recipient: Haeckel, Ernst Dating: 28.06.1914
BRIEF OHNE UMSCHLAG Schmitz, L. Dora Author: Schmitz, L. Dora Recipient: Haeckel, Ernst Dating: 25.07.1914
BRIEF OHNE UMSCHLAG Huxley, Henrietta Author: Huxley, Henrietta Recipient: Haeckel, Ernst Dating: 09.03.1914
BRIEF OHNE UMSCHLAG McCabe, Joseph Author: McCabe, Joseph Recipient: Haeckel, Ernst Dating: 21.05.1914