Preussische Akademie der Wissenschaften.
Membership records of the Prussian Academy of Sciences, 1850-1945.
Minutes and letters to membership of entire Akademie including natural science and humanities.
Preussische Akademie der Wissenschaften -- Membership.
Learned institutions and societies -- Germany.
Membership lists. aat
Minutes. aat
AIP-ICOS
Archiv der Berlin-Brandenburgische Akademie der Wissenschaften. JgĖerstrasse 22/23, 10117 Berlin