BRIEF OHNE UMSCHLAG Carter, Henry G. Author: Carter, Henry G. Recipient: Haeckel, Ernst Corporation: Carter & Sons Dating: 30.06.1911
BRIEF [O.A.] Chidley, W... S... Author: Chidley, W... S... Recipient: Haeckel, Ernst Dating: 04.04.1897
BRIEF [O.A.] Carson, W... M... Author: Carson, W... M... Recipient: Haeckel, Ernst Corporation: Rationalist Association of New South Wales Dating: 26.08.1919
BRIEF [O.A.] Cox, Katherine H... Author: Cox, Katherine H... Recipient: Haeckel, Ernst Dating: 13.01.1908
BRIEF [O.A.] Cobb, Nathan Augustus Author: Cobb, Nathan Augustus Recipient: Haeckel, Ernst Dating: 11.12.1889