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 7698.48 Archivist-General of Floor 89

  The Archivist-General of Floor 89 (Colloquium 89-A-1) is the executive administrator and doctrinal principal of Floor 89, “The Hall of Defer…

• MS 0228.03 Desk Zeta

  Desk Zeta is the subordinate catalogue station established on Floor 881- to administer the hybrid-variance records emanating from Stairwell …

• MS 7806.54 Librarians' Review
• MS 6186.94 Observed Phenomena

  In Tower cataloguing, an Observed Phenomena is any event, state, or entity formally registered by the Central Registry as having been verifi…