WIA GC/1898/17
Flügel, Felix to Warburg, Aby 18/10/1898
advises him to contact the Bureau of American Ethnology for a copy of the Report, since the...
WIA GC/1903/117
Flügel, Felix to Warburg, Aby 04/05/1903
wants to send him some printed material from the Smithsonian and requests correct address