Floor 7,410
- Holdings shelved
- 4
- Survey
- incomplete
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 6912.20 Measurement & Demarcation Office
- MS 3089.22 Meditative Transit
- MS 6488.52 Observatory of Latent Friction
- MS 9307.28 Structural Radial