BRIEF OHNE UMSCHLAG McCabe, Joseph Author: McCabe, Joseph Recipient: Haeckel, Ernst Dating: ??.11.1905
BRIEF OHNE UMSCHLAG McCabe, Joseph Author: McCabe, Joseph Recipient: Haeckel, Ernst Dating: 20.10.1905
BRIEF OHNE UMSCHLAG McCabe, Joseph Author: McCabe, Joseph Recipient: Haeckel, Ernst Dating: 10.03.1905
BRIEF OHNE UMSCHLAG McCabe, Joseph Author: McCabe, Joseph Recipient: Haeckel, Ernst Dating: ??.08.1905
BRIEF OHNE UMSCHLAG McCabe, Joseph Author: McCabe, Joseph Recipient: Haeckel, Ernst Dating: 18.11.1905
BRIEF OHNE UMSCHLAG McCabe, Joseph Author: McCabe, Joseph Recipient: Haeckel, Ernst Dating: 28.12.1905
BRIEF OHNE UMSCHLAG Geddes, Patrick Author: Geddes, Patrick Recipient: Haeckel, Ernst Corporation: Sociological Society Dating: 02.02.1905
BRIEF OHNE UMSCHLAG Gadow, Hans Author: Gadow, Hans Recipient: Haeckel, Ernst Corporation: University Museum of Zoology Dating: 24.01.1905
BRIEF OHNE UMSCHLAG McCabe, Joseph Author: McCabe, Joseph Recipient: Haeckel, Ernst Dating: 08.11.1905
BRIEF OHNE UMSCHLAG Watts, Charles Albert Author: Watts, Charles Albert Recipient: Haeckel, Ernst Dating: 17.10.1905