BRIEF [O.A.] McIntosh, William C... Author: McIntosh, William C... Recipient: Haeckel, Ernst Dating: 19.09.1879
BRIEF [O.A.] McIntosh, William C... Author: McIntosh, William C... Recipient: Haeckel, Ernst Dating: 08.12.1879
BRIEF [O.A.] McIntosh, William C... Author: McIntosh, William C... Recipient: Haeckel, Ernst Dating: 25.03.1880
BRIEF [O.A.] McIntosh, William C... Author: McIntosh, William C... Recipient: Haeckel, Ernst Dating: 05.08.1881
BRIEF [O.A.] McIntosh, William C... Author: McIntosh, William C... Recipient: Haeckel, Ernst Dating: 08.09.1881
BRIEF [O.A.] McIntosh, William C... Author: McIntosh, William C... Recipient: Haeckel, Ernst Dating: 12.09.1887
BRIEF [O.A.] McIntosh, William C... Author: McIntosh, William C... Recipient: Haeckel, Ernst Dating: 04.02.1888
BRIEF [O.A.] McIntosh, William C... Author: McIntosh, William C... Recipient: Haeckel, Ernst Dating: 19.12.1889
BRIEF [O.A.] McIntosh, William C... Author: McIntosh, William C... Recipient: Haeckel, Ernst Dating: 15.07.1890
BRIEF [O.A.] McIntosh, William C... Author: McIntosh, William C... Recipient: Haeckel, Ernst Dating: 01.12.1891