4 holdings are shelved on this floor. A shared floor records where volumes sit and nothing about what any of them says; these are neighbours, not relations.

• MS 3112.40 Arbella Cipher
• MS 8862.18 Argument Against Its Own Premise
• MS 3375.77 Iterum Coal
• MS 9010.40 Theoretician Pol

  Theoretician Pol is a foundational figure in the epistemology of the Tower, credited with formulating the principles of Codicological Negati…