BRIEF [O.A.] Cattaneo, Giacomo Author: Cattaneo, Giacomo Recipient: Haeckel, Ernst Dating: 16.01.1904
POSTKARTE Cattaneo, Giacomo Author: Cattaneo, Giacomo Recipient: Haeckel, Ernst Corporation: R. Università di Genova, Anatomia Dating: 16.02.1904
BRIEF [O.A.] Cattaneo, Giacomo Author: Cattaneo, Giacomo Recipient: Haeckel, Ernst Dating: 21.03.1904