WIA GC/1896/35 | Hymans, Henri to Warburg, Aby 30/07/1896 | thanks him for papers and articles sent from time to time to Hymans; is interested in Warburg's... |
WIA GC/1904/136 | Friedländer, Max J. to Warburg, Aby 04/01/1904 | he has not heard of or seen a catalogue of the [Gustav?] Mayer collection and advises Warburg to... |
WIA GC/1904/177 | Hymans, Henri to Warburg, Aby 09/02/1904 | replies to enquiries about book holdings in the Royal Library |
WIA GC/1905/230 | Hertz, Clara to Warburg, Aby [1905] | on her part of a collaboration with Hymans which was not remunerated; she is prepared to carry on... |
WIA GC/1905/239 | Warburg, Aby to Hymans, Henri 06/04/1905 | forwards the review of his lecture 'Austausch'; adds four questions in connection with his... |