BRIEF [O.A.] Thomson, Charles Wyville Author: Thomson, Charles Wyville Recipient: Haeckel, Ernst Dating: 25.12.1875
BRIEF [O.A.] Thomson, Charles Wyville Author: Thomson, Charles Wyville Recipient: Haeckel, Ernst Dating: 30.09.1876
BRIEF [O.A.] Thomson, Charles Wyville Author: Thomson, Charles Wyville Recipient: Haeckel, Ernst Dating: 01.11.1876
BRIEF OHNE UMSCHLAG Thomson, Charles Wyville Author: Thomson, Charles Wyville Recipient: Haeckel, Ernst Dating: 23.08.1877
BRIEF [O.A.] Thomson, Charles Wyville Author: Thomson, Charles Wyville Recipient: Haeckel, Ernst Dating: 15.12.1880
BRIEF [O.A.] Thomson, Charles Wyville Author: Thomson, Charles Wyville Recipient: Haeckel, Ernst Dating: 14.08.1881
BRIEF [O.A.] Thomson, Charles Wyville Author: Thomson, Charles Wyville Recipient: Haeckel, Ernst Dating: 28.01.????
BRIEF OHNE UMSCHLAG Thomson, Charles Wyville Author: Thomson, Charles Wyville Recipient: Haeckel, Ernst Dating: 10.01.1881
BRIEF OHNE UMSCHLAG Thomson, Charles Wyville Author: Thomson, Charles Wyville Recipient: Haeckel, Ernst Dating: 19.01.????
BRIEF OHNE UMSCHLAG Thomson, Charles Wyville Author: Thomson, Charles Wyville Recipient: Haeckel, Ernst Corporation: University Edinburgh Dating: 11.01.1878
