Floor 4,176
- Holdings shelved
- 3
- Survey
- incomplete
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 8671.25 Floor 114,771 ("The Hall of Calibrated Echoes")
- MS 9743.81 Floor 209
- MS 0571.28 Floor 401, The Repository of Implied Forms