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 4894.39 Department of Vertical Transit

  The Department of Vertical Transit (DVT) is the Tower's principal administrative authority for all sanctioned vertical conduits, responsible…

• MS 0278.09 In re: The Spectral Filing of Lamentations (Log 47-Γ)
• MS 5093.07 Lexicon of Unseen Architecture

  The Lexicon of Unseen Architecture (Concordance-LUX-1987-α, revised 2003) is the definitive procedural and administrative reference for the …

• MS 4442.78 Silvanus void

  Silvanus void is the definitive procedural designation and spatial classification for a contiguous, acoustically-bounded zone of absolute bo…