BRIEF [O.A.] Lacaze-Duthiers, Th... Author: Lacaze-Duthiers, Th... Recipient: Haeckel, Ernst Dating: 21.03.1870
BRIEF [O.A.] Lacaze-Duthiers, Th... Author: Lacaze-Duthiers, Th... Recipient: Haeckel, Ernst Corporation: Sorbonne Dating: 28.06.1869