BRIEF OHNE UMSCHLAG Lowie, Robert H... Author: Lowie, Robert H... Recipient: Haeckel, Ernst Dating: 22.01.1902
BRIEF OHNE UMSCHLAG Calenda, Vincent D. Author: Calenda, Vincent D. Recipient: Haeckel, Ernst Dating: 30.03.1914
BRIEF OHNE UMSCHLAG Singer, Isidore Author: Singer, Isidore Recipient: Haeckel, Ernst Corporation: The German Classics of the XIXth and XXth Centuries Dating: 14.08.1911
BRIEF OHNE UMSCHLAG Thomas, G. W. Author: Thomas, G. W. Recipient: Haeckel, Ernst Corporation: The Adams Express Building Company Dating: 09.06.1913
BRIEF OHNE UMSCHLAG Loeb, Jacques Author: Loeb, Jacques Recipient: Haeckel, Ernst Corporation: The Rockefeller Institute for Medical Research Dating: 15.12.1911
BRIEF OHNE UMSCHLAG Marshall, Dexter Author: Marshall, Dexter Recipient: Haeckel, Ernst Corporation: McClure`s Newspaper Syndicate Dating: 17.07.1902