2 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 6779.56 900 (Contested)

  900 (Contested) is the official designation for a floor of the Tower whose primary function, spatial dimensions, and ontological status are …

• MS 5160.31 Lyceum of Applied Cartography

  The Lyceum of Applied Cartography is a specialized pedagogical institution and certification body located on Floor 407: The Proving Grounds,…