BRIEF OHNE UMSCHLAG McCabe, Joseph Author: McCabe, Joseph Recipient: Haeckel, Ernst Dating: 04.02.1909
BRIEF OHNE UMSCHLAG McCabe, Joseph Author: McCabe, Joseph Recipient: Haeckel, Ernst Dating: 16.02.1909
BRIEF OHNE UMSCHLAG McCabe, Joseph Author: McCabe, Joseph Recipient: Haeckel, Ernst Dating: 30.03.1909
BRIEF OHNE UMSCHLAG McCabe, Joseph Author: McCabe, Joseph Recipient: Haeckel, Ernst Dating: ??.04.1909
BRIEF OHNE UMSCHLAG Seward, Albert Charles Author: Seward, Albert Charles Recipient: Haeckel, Ernst Corporation: Darwin Memorial Volume of Essays Dating: 02.02.1909
BRIEF OHNE UMSCHLAG Watts, Charles A. Author: Watts, Charles A. Recipient: Haeckel, Ernst Corporation: The Rationalist Press Association Dating: 16.06.1909
BRIEF OHNE UMSCHLAG McCabe, Joseph Author: McCabe, Joseph Recipient: Haeckel, Ernst Dating: 04.05.1909
BRIEF OHNE UMSCHLAG Dendy, Arthur Author: Dendy, Arthur Recipient: Haeckel, Ernst Corporation: Linnean Society Dating: 07.05.1909
BRIEF OHNE UMSCHLAG O'Neill, Aeneas Author: O'Neill, Aeneas Recipient: Haeckel, Ernst Corporation: The Times Berlin Dating: 09.09.1909