1. Logik I. Creator: From the Collection: Cassirer, Ernst, 1874-1945 Published / Created: n.d. Call Number: GEN MSS 98 Container / Volume: Box 56, folder 1113 Image Count: 109 Found in: Beinecke Rare Book and Manuscript Library > Ernst Cassirer papers (GEN MSS 98) > Series IV: Personal Papers > ... > STUDENT NOTEBOOKS > Envelope #138 > Natorp > Logik I.
2. Logik II. Creator: From the Collection: Cassirer, Ernst, 1874-1945 Published / Created: n.d. Call Number: GEN MSS 98 Container / Volume: Box 56, folder 1114 Image Count: 56 Found in: Beinecke Rare Book and Manuscript Library > Ernst Cassirer papers (GEN MSS 98) > Series IV: Personal Papers > ... > STUDENT NOTEBOOKS > Envelope #138 > Natorp > Logik II.
3. Logik II. Creator: From the Collection: Cassirer, Ernst, 1874-1945 Published / Created: n.d. Call Number: GEN MSS 98 Container / Volume: Box 56, folder 1115 Image Count: 47 Found in: Beinecke Rare Book and Manuscript Library > Ernst Cassirer papers (GEN MSS 98) > Series IV: Personal Papers > ... > STUDENT NOTEBOOKS > Envelope #138 > Natorp > Logik II.