BRIEF [O.A.] Scherzer, Ritter Karl von Author: Scherzer, Ritter Karl von Recipient: Haeckel, Ernst Dating: 26.10.1875
BRIEF [O.A.] Scherzer, Ritter Karl von Author: Scherzer, Ritter Karl von Recipient: Haeckel, Ernst Dating: 17.02.1876
BRIEF [O.A.] Scherzer, Ritter Karl von Author: Scherzer, Ritter Karl von Recipient: Haeckel, Ernst Dating: 07.03.1876
BRIEF [O.A.] Scherzer, Ritter Karl von Author: Scherzer, Ritter Karl von Recipient: Haeckel, Ernst Dating: 30.01.1877
BRIEF [O.A.] Scherzer, Ritter Karl von Author: Scherzer, Ritter Karl von Recipient: Haeckel, Ernst Dating: 30.03.1878
BRIEF [O.A.] Scherzer, Ritter Karl von Author: Scherzer, Ritter Karl von Recipient: Haeckel, Ernst Dating: 02.04.1878
BRIEF [O.A.] Scherzer, Ritter Karl von Author: Scherzer, Ritter Karl von Recipient: Haeckel, Ernst Dating: 16.05.????
BRIEF [O.A.] Scherzer, Ritter Karl von Author: Scherzer, Ritter Karl von Recipient: Haeckel, Ernst Dating: 28.05.1878
BRIEF [O.A.] Scherzer, Ritter Karl von Author: Scherzer, Ritter Karl von Recipient: Haeckel, Ernst Dating: 28.05.????
BRIEF [O.A.] Scherzer, Ritter Karl von Author: Scherzer, Ritter Karl von Recipient: Haeckel, Ernst Dating: 23.06.????