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 8620.93 Approval Authority

  Approval Authority is the class of delegated power by which an officer, body, or instrument of the Tower converts a proposal into an operati…

• MS 6630.55 Contemporary Humoral Cartography

  Contemporary Humoral Cartography is the collective designation for those practices, instruments, and schools that apply the four-humour fram…

• MS 8784.36 Sealing Chapel

  The Sealing Chapel is a consecrated chamber, nominally subordinate to Aperture Management, in which the recitation of the Seventeen Sealing …

• MS 0078.83 Topological Velocity (Vt)

  Topological Velocity (Vt) is one of the several designations under which physical progression through the Tower's architecture is recorded i…