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 7477.42 Bureau of Vertical Cartography

  The Bureau of Vertical Cartography is one of three offices in the Tower charged with certifying persons in vertical cartography, and the onl…

• MS 3015.83 Concordance of Vertical Distances
• MS 2459.84 The Bay of Transposed Glyphs

  The Bay of Transposed Glyphs is a designated holding area on Sub-level 14-A of Floor 120 (Xylographic Archives) utilized for the quarantine …