BRIEF [O.A.] Attwood, John E... Author: Attwood, John E... Recipient: Haeckel, Ernst Dating: 15.03.1896
BRIEF [O.A.] Bardeleben, Karl von Author: Bardeleben, Karl von Recipient: Haeckel, Ernst Corporation: British Museum (Natural History) Dating: 21.04.1894
BRIEF [O.A.] Beadnell, C. Marsh Author: Beadnell, C. Marsh Recipient: Haeckel, Ernst Corporation: H. M. S. Shannon, Second Cruiser Squadron Dating: 16.02.1914
BRIEF [O.A.] Bell, Francis Jeffrey Author: Bell, Francis Jeffrey Recipient: Haeckel, Ernst Corporation: British Museum (Natural History) Dating: 02.07.1881
BRIEF [O.A.] Bell, Fras... Jeffrey Author: Bell, Fras... Jeffrey Recipient: Haeckel, Ernst Corporation: The Marine Biological Association of the United Kingdom Dating: 01.03.1888
BRIEF [O.A.] Ashcroft, Edgar A... Author: Ashcroft, Edgar A... Recipient: Haeckel, Ernst Dating: 24.08.1904
BRIEF [O.A.] Bather, Francis Arthur Author: Bather, Francis Arthur Recipient: Haeckel, Ernst Corporation: British Museum (Natural History) Dating: 17.10.1896
BRIEF [O.A.] Bather, Francis Arthur Author: Bather, Francis Arthur Recipient: Haeckel, Ernst Corporation: British Museum (Natural History) Dating: 30.12.1907