Brief Description: 1. Manuscript of the second supplement to the *Leksikon fun der nayer yidisher literatur*, letters "Alef through Shin." 2. Letters from: Lev Berinsky, Khariton Berman, Leib Botwinick, V. Belinker, Azaria Dobruszkes, Esther Holzberg, Benjamin Harshav, Shamai Greenberg, Troim Handler, Jokubas Josade, Jean Jofen, Avraham Kazev, Itic Svart-Kara, Abraham Kwaterko, Israel Kaplan, Dovid-Hirshe Katz, Joseph Lieberson, Isaac Luden, Manya Landman, Hayim Lazdajski, Jacob Levitz, Yakov Levavi, Michal Mirski, Daniel Marlin, Avrum Nowershtern, Yitzhok Niborski, Shalom Sudit, Adam Rok, Michael Steinberg, Dovid Sztokfisz, Jacob Shaefer, Khava Turnianski, Mordechai Tsanin, Shifre Weber, David Wolpe, Gershon Weiner, and Michael Yankosiski. 3. Bio-bibliographic cards relating to the second Leksikon supplement. 4. Copy of Yiddish manuscript, B.K., on Jewish "vocational education in Lithuania." 5. Copy of Yiddish manuscript, by B.K., on Jewish education in Lithuania. First page missing. 6. Hand-corrected Yiddish typescript of "Rabbis and scribes in Shavl," by B.K. 7. Photograph of B.K