Correspondence, manuscripts, lectures, lecture notes, and subject files of Russian-American historian Mikhail Mikhailovich Karpovich (1888-1959). Karpovich was an employee of the embassy of the Russian Provisional Government in Washington, D.C., Professor Emeritus of Russian History and Literature at Harvard University, and founding editor of Novyĭ zhurnal.

The collection consists of correspondence, manuscripts, memoirs, notes, lectures, subject files, documents, diplomas and awards, and printed materials. Cataloged correspondents include Dmytro Chyzhevsʹkyĭ and Nikolaĭ Losskiĭ. Most of the correspondence concerns scientific topics and Novikov's publications in emigration. Manuscripts are primarily by Novikov on biological topics. There are also manuscripts by various persons, including Nikolaĭ Losskiĭ and Mikhail Karpovich (1956), and "Dvukhsotletie Moskovskogo Universiteta," edited by Novikov. Memoirs include a manuscript of Novikov's "Ot Moskvy do Nʹi︠u︡ Ĭorka," (published in 1952). Lectures are on biological topics. Subject files deal in part with the celebration in the West of the Bicentennial of Moscow University, Radio Liberty broadcasts and UNRRA University in Munich. Printed materials include copies of publications by Novikov.