Correspondence and manuscripts of Zaĭt︠s︡ev. This collection covers from the 1920's into the 1960's. There is correspondence from many other emigre writers. The largest groups of cataloged letters are by Mark Aldanov (105 items), Ivan Bunin (161), Archimandrite Kiprian (104), Alekseĭ Remizov (48), and Nadezhda Teffi (101). There are also items by Boris Bugaev (Andreĭ Belyĭ), Vi︠a︡cheslav Ivanov, Vladislav Khodasevich, Sergeĭ Lifaŕ and Boris Pasternak. Zaĭt︠s︡ev's manuscripts in the collection include some of his major works, such as "Puteshestvie Gleba" "Dom v Passi" "Zhizn ́Turgeneva" and "Zhukovskiĭ". In addition, the collection has a book and a pamphlet, both inscribed by Zaĭt︠s︡ev.

The papers consist of correspondence, manuscripts, subject files, financial records, photographs, and printed materials. Among the correspondents are Ivan Bilibin, David Burli︠u︡k, Franz Theodor Csokor, Vasiliĭ Kamenskiĭ, and Percival Wilde; there is one item each from Jean Anouilh, Collete, Mikhail Fokine, Vasiliĭ Kandinskiĭ, Vladislav Khodasevich, Pavel Mili︠u︡kov, and Dmitriĭ Merezhovskiĭ. Most of the manuscripts are by Evangulov and Nadezhda Teffi, and memoirs by Evreĭnov's wife, Anna Aleksandrovna, on such topics as her career in the emigration from 1925. There are photographs of Evreĭnov, Nikolaĭ Rimskiĭ-Korsakov, and Vasiliĭ Kamenskiĭ. This collection is almost entirely concerned with the emigration.