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 4862.53 Bureau of Recursive Analysis
• MS 0034.38 Office of the Final Aperture
• MS 4477.72 Ordinance 17 of the Seventysecond Concordance
• MS 4658.52 The Bureau of Aperture Consistency

  The Bureau of Aperture Consistency is an office situated within Spiral 9, charged with ensuring that designations applied to apertures are a…