WIA GC/10623 | Warburg, Aby to Mooney, James 17/05/1907 | E. von Hornbostel gave him news of Mooney; thanks him for his letter and the reports from the... |
WIA GC/12250 | Warburg, Aby to Hornbostel, Erich Moritz von 18/08/1915 | congratulates him that the army has adopted his invention; his view on a 'theoretician' and on a... |
WIA GC/16074 | Henseling, Robert to Warburg, Aby 16/03/1925 | thanks him for the Schifanoia article; he forwards it to Professor E. von Hornbostel; agrees with... |
WIA GC/16114 | Warburg, Aby to Hornbostel, Erich Moritz von 07/03/1925 | thanks him for his letter with its 'rich' and 'original' thoughts; asks him to do him a favour... |
WIA GC/16146 | Hornbostel, Erich Moritz von to Warburg, Aby 23/02/1925 | thanks him for his letter and a volume of 'Vorträge'; thanks him that, a quarter of a century ago... |