Photographer unknown2018-09-252018-09-25undatedhttp://172.16.52.76:80/cdm/ref/collection/coll3/id/52https://hdl.handle.net/20.500.12111/4775Mathematicians Solomon Lefschetz and James Alexander, of Princeton University. Alexander later joined the Faculty of the Institute for Advanced Study.SepiaPermission to use this image must be requested from the Institute's Archives. Please contact archives@ias.edu.Alexander, James W., 1888-1971Lefschetz, Solomon, 1884-1972Institute for Advanced Study (Princeton, N.J.)--FacultyInstitute for Advanced Study (Princeton, N.J.). School of MathematicsImage