BRIEF [O.A.] McIntosh, William C... Author: McIntosh, William C... Recipient: Haeckel, Ernst Dating: 19.12.1889
BRIEF OHNE UMSCHLAG Pearcey, Frederick Gordon Author: Pearcey, Frederick Gordon Recipient: Haeckel, Ernst Corporation: Challenger Expedition Office Dating: 04.02.1889
BRIEF OHNE UMSCHLAG Murray, John Author: Murray, John Recipient: Haeckel, Ernst Corporation: Challenger Expedition Office Dating: 11.01.1889
BRIEF [O.A.] Hopkirk, Charlotte Author: Hopkirk, Charlotte Recipient: Haeckel, Ernst Dating: 29.08.1889
BRIEF [O.A.] Bourne, Gilbert C... Author: Bourne, Gilbert C... Recipient: Haeckel, Ernst Corporation: Marine Biological Association of the United Kingdom, The Laboratory Dating: 14.12.1889
BRIEF OHNE UMSCHLAG Geddes, Patrick Author: Geddes, Patrick Recipient: Haeckel, Ernst Corporation: National Association for the Advancement of Art Dating: 04.09.1889
BRIEF [O.A.] Carpenter, P... H... Author: Carpenter, P... H... Recipient: Haeckel, Ernst Corporation: Eton College Dating: 25.03.1889
BRIEF [O.A.] Fewkes, J... Walter Author: Fewkes, J... Walter Recipient: Haeckel, Ernst Dating: 24.01.1889
BRIEF OHNE UMSCHLAG Murray, John Author: Murray, John Recipient: Haeckel, Ernst Corporation: Challenger Expedition Office Dating: 11.07.1889