BRIEF [O.A.] Whitley, John Robinson Author: Whitley, John Robinson Recipient: Haeckel, Ernst Corporation: The American Exhibition Dating: 09.12.1884
BRIEF [O.A.] Whitley, John Robinson Author: Whitley, John Robinson Recipient: Haeckel, Ernst Corporation: The American Exhibition Dating: ??.11.1884
BRIEF OHNE UMSCHLAG Lankester, Edwin Ray Author: Lankester, Edwin Ray Recipient: Haeckel, Ernst Dating: 03.02.1884
BRIEF OHNE UMSCHLAG Paul, Kegan Author: Paul, Kegan Recipient: Haeckel, Ernst Corporation: Kegan Paul, Trench & Co. Publishers Dating: 07.05.1884