BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Haeckel, Agnes Dating: 13.08.1879
BRIEF OHNE UMSCHLAG F. G. Pearny Author: F. G. Pearny Recipient: Haeckel, Ernst Corporation: Challenger Expedition Office Dating: 25.02.1889
BRIEF OHNE UMSCHLAG Murray, John Author: Murray, John Recipient: Haeckel, Ernst Corporation: Challenger Office Dating: 18.03.1885
BRIEF OHNE UMSCHLAG Murray, John Author: Murray, John Recipient: Haeckel, Ernst Corporation: Challenger Expedition Office Dating: 07.08.1889
BRIEF OHNE UMSCHLAG Murray, John Author: Murray, John Recipient: Haeckel, Ernst Corporation: Challenger Expedition Office Dating: 12.08.1884
BRIEF OHNE UMSCHLAG Murray, John Author: Murray, John Recipient: Haeckel, Ernst Corporation: Challenger Expedition Office Dating: 07.06.1887
BRIEF OHNE UMSCHLAG Thomson, Arthur John Author: Thomson, Arthur John Recipient: Haeckel, Ernst Dating: 25.01.1899
BRIEF OHNE UMSCHLAG Geddes, Patrick Author: Geddes, Patrick Recipient: Haeckel, Ernst Corporation: International Association for the Advancement of Science, Arts and Education Dating: 27.10.1901
BRIEF OHNE UMSCHLAG Murray, John Author: Murray, John Recipient: Haeckel, Ernst Corporation: Challenger Expedition Office Dating: 03.12.1888
