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 2432.27 Doctrine of Double Standing
• MS 2567.40 Fenwick Recension
• MS 9015.38 Probe Calibration

  Probe Calibration is the reserved term, fixed by Seventh Concordance, Annex 2, for the alignment of an Ambient Reality Probe to a single ant…