BRIEF [O.A.] Syrski, Simeone Adamo de Author: Syrski, Simeone Adamo de Recipient: Haeckel, Ernst Dating: 24.12.1872
BRIEF [O.A.] Stöckhardt, Ernst Theodor Author: Stöckhardt, Ernst Theodor Recipient: Haeckel, Ernst Dating: 03.01.1872
BRIEF OHNE UMSCHLAG Jaeger, Gustav Author: Jaeger, Gustav Recipient: Haeckel, Ernst Dating: 23.05.1872
BRIEF OHNE UMSCHLAG Jaeger, Gustav Author: Jaeger, Gustav Recipient: Haeckel, Ernst Dating: 28.02.1872
BRIEF OHNE UMSCHLAG Strasburger, Eduard Author: Strasburger, Eduard Recipient: Haeckel, Ernst Dating: 01.10.1872
BRIEF OHNE UMSCHLAG Spiess, Gustav Adolph Author: Spiess, Gustav Adolph Recipient: Haeckel, Ernst Dating: 22.08.1872
BRIEF [O.A.] Stangen, Louis Author: Stangen, Louis Recipient: Haeckel, Ernst Corporation: Stangen`s Reise-Bureau Dating: 15.08.1872
BRIEF [O.A.] Zürn, Friedrich Anton Author: Zürn, Friedrich Anton Recipient: Haeckel, Ernst Dating: 10.??.1872
