BRIEF [O.A.] Bucchich, Gregorio Author: Bucchich, Gregorio Recipient: Haeckel, Ernst Dating: 14.01.1883
BRIEF [O.A.] Bucchich, Gregorio Author: Bucchich, Gregorio Recipient: Haeckel, Ernst Dating: 14.02.1883
BRIEF [O.A.] Bucchich, Gregorio Author: Bucchich, Gregorio Recipient: Haeckel, Ernst Dating: 13.08.1883
BRIEF [O.A.] Bucchich, Gregorio Author: Bucchich, Gregorio Recipient: Haeckel, Ernst Dating: ??.??.1884
BRIEF [O.A.] Bucchich, Gregorio Author: Bucchich, Gregorio Recipient: Haeckel, Ernst Dating: 04.02.1889
BRIEF [O.A.] Bucchich, Gregorio Author: Bucchich, Gregorio Recipient: Haeckel, Ernst Dating: 21.12.1889
BRIEF [O.A.] Bucchich, Gregorio Author: Bucchich, Gregorio Recipient: Haeckel, Ernst Dating: 20.12.1890
BRIEF [O.A.] Bucchich, Gregorio Author: Bucchich, Gregorio Recipient: Haeckel, Ernst Dating: 23.02.1891
