BRIEF [O.A.] Cattaneo, Giacomo Author: Cattaneo, Giacomo Recipient: Haeckel, Ernst Dating: 27.01.1880
BRIEF [O.A.] Cattaneo, Giacomo Author: Cattaneo, Giacomo Recipient: Haeckel, Ernst Dating: 12.05.1883
BRIEF [O.A.] Cattaneo, Giacomo Author: Cattaneo, Giacomo Recipient: Haeckel, Ernst Corporation: R. Università di Pavia, Museo di Anatomia e Fisiologia Comparate Dating: 20.06.1884
BRIEF [O.A.] Cattaneo, Giacomo Author: Cattaneo, Giacomo Recipient: Haeckel, Ernst Dating: 22.12.1887