TELEGRAMM Naumann, Virginie; Naumann, Egmont Author: Naumann, Virginie; Naumann, Egmont Recipient: Haeckel, Ernst Dating: 16.02.1909
TELEGRAMM Volkelt, Johannes; Volkelt, Meta Author: Volkelt, Johannes; Volkelt, Meta Recipient: Haeckel, Ernst Dating: 16.02.1909
TELEGRAMM Römer, Fritz Author: Römer, Fritz Recipient: Haeckel, Ernst Corporation: Senckenbergische Naturforschende Gesellschaft; Senckenberg-Museum Dating: 16.02.1909
TELEGRAMM Krauseneck, Gustav Adolf Author: Krauseneck, Gustav Adolf Recipient: Haeckel, Ernst Dating: 16.02.1909
BRIEF OHNE UMSCHLAG Koehler, Woldemar Author: Koehler, Woldemar Recipient: Haeckel, Ernst Dating: 15.02.1909
