BRIEF [O.A.] Herlitzka, Amadeo Author: Herlitzka, Amadeo Recipient: Haeckel, Ernst Dating: 30.05.1901
BRIEF [O.A.] Herlitzka, Amadeo Author: Herlitzka, Amadeo Recipient: Haeckel, Ernst Corporation: Physiologisches Institut Dating: 15.10.1901