Floor 9,011

Floor 9,011

Floor 9,011 is a survey and calibration floor situated between Floor 9090 and Floor 9,012, though the survey office of the Office of Vertical Continuity has recorded the floor's position as "between Floor 1801 and itself" in every annual return since the return of 4,988. Both statements are retained in the registry. Neither has been withdrawn.

The floor is best known as the seat of the Bureau of Minor Discrepancies, the body charged with recording the small misalignments that accumulate between the Tower's floors — thresholds set two fingers out of true, stair-heads arriving before their landings, floor plates whose declared area exceeds their walked area by a known quantity. Floor 9,011 does not correct these discrepancies. It measures and files them. Sixth Concordance, Annex 11, is explicit: "the Bureau shall observe, and shall not amend, save by the issue of a further observation."

Physical description

The floor is a single gallery, 212 paces long by 38 wide, lit by aperture-windows of the 41-A pattern described in the Aperture Schedule of the Middle Spiral. The windows on the eastern wall have never admitted light, and the Bureau has filed three observations on the matter without resolving it. The gallery is lined on both sides by calibrated tiles, each stamped with a discrepancy number, a date, and the initials of the clerk who found it. The tiles begin at waist height and continue to the ceiling in the northern third of the gallery, where the clerks ran out of shelf and were refused more.

A rail of regulation brass runs the full length of the floor at a height of 91 centimetres, and nothing may be placed nearer to it than one pace. This is not a ceremonial rule.

History

Floor 9,011 was catalogued late. The Ledger of Surveyed Floors records its first entry in the winter of 4,981, when a surveyor of the Office of Vertical Continuity named Cadmer Osp descended from Floor 9090 intending to reach Floor 9,012 and instead arrived at a gallery that no inventory had listed. Osp measured it twice, found a discrepancy of 14 centimetres between his two measurements, and — by his own account in a memorandum to the Surveyor-Superior — "was obliged to sit down."

The Bureau was constituted the following year by Twelfth Concordance, Annex 3, which assigned it nine clerks and a stove. The stove was removed in 5,204 for reasons never stated and has been requested back in six successive petitions, most recently by the clerk Marn Vello, whose grievance of 6,017 (that the northern third of the gallery cannot be worked in winter) remains open. The Bureau's reply to Vello is itself filed as a discrepancy.

The Discrepancy Register

All observations are entered in the Discrepancy Register, a volume of 1,404 leaves kept on a lectern of known height. The Register is the sole authority on what constitutes a discrepancy; the definition has been amended eleven times, most substantially in 5,442, when the Bureau ruled that an error repeated identically in three consecutive returns becomes a "settled feature" and may no longer be corrected by anyone.

The ruling had an unintended effect. Floor 9,011 has filed the same incorrect height for the Floor 9090 landing in every return since 5,443, and that height is now settled. A proposal to settle a second feature — the floor's own position, recorded since 4,988 as between Floor 1801 and itself — was tabled in 6,020 and has not been voted on. The Bureau's minutes record that the matter was "left open," which the Register lists under the heading of ordinary conditions.

Scholarly dispute

There is no settled account of what Floor 9,011 measures for. The Third Concordance, Annex 4, holds that discrepancies are accumulated in order that the Tower's total error may be known and, being known, tolerated: "the sum of small misfortunes is the price of a floor that may be walked." Against this, the later Ninth Concordance, Recension B, argues that the Bureau's work is purely archival and that no total has ever been computed, a claim supported by the absence of any total in the Register's 1,404 leaves.

The Office of Vertical Continuity takes a third position, set out in a marginal note of 5,899 attributed to Surveyor-Superior Hild: that the Bureau's measurements are correct but are taken from the wrong end of the gallery. The Bureau has declined to respond, on the ground that the note is not a discrepancy and therefore falls outside its remit.

Access

Floor 9,011 may be visited by appointment with the Bureau's duty clerk. Visitors are asked to remove their shoes at the threshold and not to remark on the stove.

"The Bureau keeps no opinion on the Tower's soundness, and keeps no record of those who ask."

— Eleventh Concordance, Annex 2, clause 6