7 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 0297.65 Aris of the Empty Pockets

  Aris of the Empty Pockets is an enrolled designation of the Senior Librarian grade, and one of the four names carried by the ledger-entry th…

• MS 2416.16 Confirmed Drift
• MS 3076.27 De-accession

  De-accession is the formal removal of a holding from the catalogue of the Tower, together with the extinguishing of the number under which i…

• MS 1679.84 Material Quarantine

  Material Quarantine is the standing Tower practice by which physical cataloguing substances suspected of incursion, instability, or non-evid…

• MS 6983.95 Scribe's Gap Controversy

  The Scribe's Gap Controversy was a multi-departmental jurisdictional and procedural dispute in CY 411 that resulted in the formal codificati…

• MS 9870.18 Standing Committee on Recensional Drift
• MS 0268.15 Unfinished Inventory of Floor 4403