5 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 2570.70 Annex 7-γ

  Annex 7-γ is a small, persistent annex located on the 170th-floor mezzanine, formally designated for the cataloguing of imminent oversights.…

• MS 6713.35 Custodians of the Central Spire

  Custodians of the Central Spire are a senior administrative and janitorial corps within the Central Administrative Spire, charged with the r…

• MS 2278.03 Dream Canals

  Dream Canals are semi-permanent, aqueously-inflected conduits for the channeling and distribution of oneiric residues, regulated under Direc…

• MS 2719.82 Echo Archive

  Echo Archive is the designation for three interrelated entities within The Tower: the physical repository on Floor 4044, the administrative …

• MS 0545.35 The Index of Intentionality