WIA GC/1903/272
Strack, Max L. to Warburg, Aby 15/02/1903
family news; on Ada B. [Ada Booth]; he would like to help her; he enjoys teaching in Bonn; is...
WIA GC/1916/490
Neumann, Carl to Warburg, Aby [1916]
list of eleven books, all available at university library, Freiburg i. Br., on prophecies in the...