6 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 0625.30 Administrative Resonance

  Administrative Resonance is the tendency of distinct offices, instruments, and catalogued subjects within the Tower to fall into harmonic co…

• MS 8274.58 Aperture Gammas

  An Aperture Gamma is a formal classification within the Tower's custodial taxonomy, denoting an administrative aperture designated for the p…

• MS 1296.38 Jurisdictional Reach

  Jurisdictional Reach is a measured quantity, expressed in the Tower's records as a distance in spans, storeys, or — where the measurement is…

• MS 3205.03 Phantom Thermometry Scale
• MS 9845.95 Provisional Transit Aperture

  Provisional Transit Aperture is an opening registered with the Central Registry for movement between non-contiguous points within the Tower,…

• MS 4071.13 Recursive Integrity