BRIEF [O.A.] Marshall, William Author: Marshall, William Recipient: Haeckel, Ernst Dating: 14.01.1870
BRIEF [O.A.] Marshall, William Author: Marshall, William Recipient: Haeckel, Ernst Dating: 05.11.1870
BRIEF [O.A.] Marshall, William Author: Marshall, William Recipient: Haeckel, Ernst Dating: 07.12.1870
BRIEF [O.A.] Marshall, William Author: Marshall, William Recipient: Haeckel, Ernst Dating: 06.03.1871
BRIEF [O.A.] Marshall, William Author: Marshall, William Recipient: Haeckel, Ernst Dating: 09.05.1871
BRIEF [O.A.] Marshall, William Author: Marshall, William Recipient: Haeckel, Ernst Dating: 08.11.1872
BRIEF [O.A.] Marshall, William Author: Marshall, William Recipient: Haeckel, Ernst Dating: 03.01.1873
BRIEF [O.A.] Marshall, William Author: Marshall, William Recipient: Haeckel, Ernst Dating: 25.12.1873
BRIEF [O.A.] Marshall, William Author: Marshall, William Recipient: Haeckel, Ernst Dating: 07.03.1875
BRIEF [O.A.] Marshall, William Author: Marshall, William Recipient: Haeckel, Ernst Dating: 09.06.1875