BRIEF [O.A.] Reichenbach, Heinrich Author: Reichenbach, Heinrich Recipient: Haeckel, Ernst Corporation: Senckenbergische Naturforschende Gesellschaft Dating: 03.07.1886
BRIEF [O.A.] Schallwitz, Bruno Author: Schallwitz, Bruno Recipient: Haeckel, Ernst Dating: 27.09.1886
BRIEF [O.A.] Hundins, Paul Arthur Author: Hundins, Paul Arthur Recipient: Haeckel, Ernst Dating: 28.06.1886
BRIEF [O.A.] Hughes, W... I... Author: Hughes, W... I... Recipient: Haeckel, Ernst Corporation: Borough of Birmingham, Treasurer's Department, The Council House Dating: 31.05.1886
BRIEF [O.A.] Hughes, W... I... Author: Hughes, W... I... Recipient: Haeckel, Ernst Corporation: Borough of Birmingham, Treasurer's Department, The Council House Dating: 24.07.1886
