3 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 9276.19 Floor 440 the Gilded Aviary

  Floor 440 is a designated ornithological containment and study facility located, by most reliable cartographic reckoning, between Floor 301 …

• MS 9796.34 Gallery of Introspective Geometries
• MS 4436.88 The Bureau of Appointments

  The Bureau of Appointments is the directorate charged with the primary custodial and generative functions pertaining to the Tower's official…