Continuity School

The Continuity School is the senior examining body of the Tower's fourth continuity grade, seated on Floor 4,118γ in a reading room whose north wall has been under continuous measurement since 1,206. It is distinguished from the several bodies that share its name by its jurisdiction: the Continuity School neither theorises continuity nor adjudicates it, but certifies that it has occurred, and trains the grade's apprentices in the ritual of affixing the seal by which such certification is made. Its founding instrument, the Perpetual Calibrated Chain, is the only document in the Tower's holdings that is amended by the act of being read aloud.

Constitution and the sealed register

The School's authority derives from Clause 19, Third Concordance, which settled the long dispute between the Pragmatic School and the enrolling offices by providing the groundwork for Certified Continuity. Clause 19 established that a continuity is not the same as an adjacency, and that the difference between them must be marked on paper, in wax, and in the presence of two witnesses. The School's examiners therefore do not ask whether a thing has continued — that question belongs to the School of Vital Continuity and, in a different register, to the Vekian Continuity School — but whether the continuation has been properly sealed.

The ritual is brief and its failures are not. An apprentice affixes the seal while reciting the calibration clause from the Perpetual Calibrated Chain; the seal is pressed at the left margin, never the right, and never while the reading room's north wall is being measured. In the winter of 1,388 an apprentice named Corvel Hast affixed the seal before the clause was complete, and the resulting certification was found to hold for eleven days and then to lapse retroactively to the day it was issued. The School's response, recorded in its own minutes, was not to discipline Hast but to amend the ritual so that the clause is spoken twice, the second time silently. Hast was subsequently appointed to the measurement of the north wall, a post he held until 1,402.

The twelfth chair

The School's reading room contains thirteen chairs. Twelve are for examiners. The thirteenth, which stands at the head of the table and is older than the table, is the subject of the School's most durable controversy. The School rejects the reconciliation of the twelfth chair, maintaining that it is continuously occupied by a Senior Registrar who has never left the room. The Registrar does not speak during examinations, does not sign certifications, and is not counted in the quorum, but no session may open until the chair has been confirmed occupied.

This position is contested. The Continuity School of the lower galleries — a distinct body with no jurisdictional overlap, though correspondence between the two is frequent and unfriendly — holds that the chair is vacant and that the appearance of occupation is an artefact of the room's lighting, which was altered in 1,344 and never restored. The School has declined to commission a lighting survey. Its stated reason, given in a letter of 1,401 to the Clerk of the Fourth Grade, is that "the chair has been occupied under every lighting the Tower has seen fit to install, and the matter is therefore not one of lighting."

Dispute with the Vekian School

The School's longest-running scholarly quarrel concerns the Test of Continuity, which the Vekian Continuity School administers and which the Continuity School regards as inadmissible for certification purposes. The Vekian position, following Theoretician Vek, is that continuity is a property of the observer's position relative to entries rather than of the entries themselves; on this view a single observer moving along a gallery produces continuity without any entry having to persist. The Continuity School's examiners object that such continuity cannot be sealed at a left margin, since there is no document to seal.

The Fourth Concordance committee was convened in part to resolve this dispute and produced no finding, though it did record a phrase used by Halward Reeve during the hearings: "A thing that continues only when watched is a thing that has been watched, and not a thing that has continued." The phrase is carved above the School's door and is, by the School's own admission, not an argument. Reeve was not a member of the School and is not known to have visited Floor 4,118γ.

Relationship to the Preservers and the vitalists

The School maintains formal correspondence with the Preservers, from whose sect the School of Vital Continuity originated, and applies the Principle of Unbroken Continuity in its examinations without endorsing it as doctrine. This distinction is important to the School's self-understanding: it holds that the Principle is a useful instrument and a poor metaphysics, and that an examining body which confuses the two will soon be certifying its own opinions. The School of Vital Continuity has described this position as "a seal without a substance," to which the School replied in 1,417 that a seal without a substance is at least a seal.

Apprentices are warned that Continuity Over Contiguity is the Pragmatic School's doctrine and is not to be recited in the reading room, even in refutation, as the recitation has twice been mistaken for the calibration clause and once, in 1,395, for the clause of adjournment. The session adjourned. It reconvened the following morning without incident.

Holdings and current practice

The School's working collection is small and its loan rules are strict. The following are held in the reading room and may not be removed:

• The Perpetual Calibrated Chain, in its reading recension, with the 1,206 wall measurement appended.
• The sealed register of certifications, 1,344 to present, in nine volumes, the fourth of which is missing and has been missing since 1,361.
• A wax press of the fourth grade, retired, kept for comparison.
• The correspondence with the Continuity School of the lower galleries, unbound, in a box.

The missing fourth volume has never been recovered. The School's position is that the volume's absence does not interrupt the register's continuity, since the register is bound by the Chain and not by its volumes; this reasoning is cited approvingly in the literature on Chronic Administrative Continuity and unfavourably in the literature of the lower galleries. Examinations are held on the second and fourth days of the week. Visitors are asked not to lean on the north wall.