Clause XV.4

Clause XV.4 is the provision of the Fifteenth Concordance governing the standing height of catalogue annotations written in the lower margin of a folio. It is among the shortest clauses in the Concordances and among the most litigated. Its full text, as ratified in the winter recension of the year the Tower records as 3,411 (the year being itself disputed; see Concordance Dating Disputes), reads in its entirety: "Marginal annotation shall not exceed the height of the line it annotates."

Nothing further is appended. The clause carries no annex, no schedule of penalties, and no definition of "height." It has nevertheless generated four standing offices, two schisms, and a body of commentary exceeding the length of the Concordance it interprets by a factor of nineteen.

Origins and the Plumb-Line Controversy

Clause XV.4 was drafted in response to the collapse of the annotation shelves on the eight-hundred-and-twelfth floor during the great stocktaking of 3,409, in which an over-tall marginal note in a copy of the Eleventh Concordance was found to have displaced eleven adjacent folios into the stairwell. The Librarians attributed the loss to the annotation and not to the shelving, which had been condemned in a report three years earlier and not acted upon. The report's author, Sub-Librarian Ovett Marrant, is recorded as having appended to his own copy of Clause XV.4 a marginal note reading, in full, "This will not hold." The note exceeds the height of the line it annotates. It has been preserved as an exhibit and is not to be measured.

The clause was applied without difficulty for some two centuries, until the Office of Vertical Compliance was established to enforce it and immediately discovered that "height" admitted of at least three readings: the measured height of the letters, the number of lines the annotation occupies, and the vertical distance from the annotated line to the top of the annotation as hung from its baseline. The Office adopted the third reading, which no one else used and which no one was permitted to contest.

The Schism of the Two Schools

The Tallists hold that the clause restricts the annotation's written extent and that an annotation may begin on the line below provided its letters are small. The Levellists hold that the clause restricts the annotation's vertical displacement regardless of letter size, and that a small annotation placed low is in breach just as surely as a large one placed high. The dispute is old enough that both positions are taught in the same course at the Scriptorium of the Lower Spiral and the lecturer is required to teach them in alternating order to avoid the appearance of preference.

The Tallist position draws on Clause 7.3, which permits operational sub-clauses to sit "beneath or beside" their parent provision, and argues by analogy that annotations may likewise descend. The Levellists respond that Clause 7.1.5 and Clause 7.1.6 together establish that descent is a privilege of operative text and not of commentary, and that Clause XV.4 exists precisely to keep commentary in its place. The Levellist reading is generally preferred in the upper floors and the Tallist in the lower, which has led to a well-documented gradient: an annotation written on the fourth floor and sent down to the four hundredth arrives in breach.

The Marrant Ruling and Its Consequences

In 4,117 the Court of Marginal Appeals was asked to decide whether an annotation ruled out by the Office of Vertical Compliance might be salvaged by tilting it. The annotator, a copyist named Hesketh Vane, had written a note of seven words at thirty degrees from the horizontal, on the reasoning that no vertical measurement of a tilted line can exceed its length. The Court, in what is now cited as the Marrant Ruling notwithstanding that Ovett Marrant had been dead for six hundred years, found for Vane and held that the clause measures height and not extent.

"The clause does not forbid the annotator to be lengthy. It forbids the annotator to be tall. A note of great length written on a slant is, in the eye of the clause, a short note."

— Court of Marginal Appeals, judgment of 4,117, recorded in the Register of Tilted Annotations

The ruling was immediately exploited. The Register records 2,308 tilted annotations within the first year, and by 4,140 the standard working angle at the Scriptorium of the Lower Spiral had settled at thirty-two degrees, chosen because it kept the note clear of the binding. In 4,143 the Court quietly amended its own judgment to exclude angles below forty-five degrees, without explaining the number, and the Office of Vertical Compliance has enforced the forty-five ever since by means of a brass template kept in a drawer on the ninth floor.

Relation to Other Provisions

Clause XV.4 is frequently confused with Clause 4.11.γ, which restricts the width of marginal annotation and which was drafted by a different committee with no knowledge of the Fifteenth Concordance. The two clauses are in open contradiction on the question of a note that is narrow and tall against one that is wide and short, a case that Clause 8.α.7 was intended to resolve but does not. Clause 8.α.7 refers the matter to Clause 1, Annex Alpha, Subsection 1, which refers it onward to Clause I, whose text is missing.

There is also a standing tension with Clause 5, since a note written on a stiff card and stood upright beside the folio is, under the material classification, not an annotation at all but a fitting, and therefore exempt. The Office of Vertical Compliance has ruled the practice "not contemplated" and has declined to say by whom.

Practical Notes

Annotators working in the lower margins are advised to check the annotated line before writing rather than after, as Clause XV.4 is one of the few provisions enforced retrospectively by erasure. Visitors to the reading rooms are reminded that the brass templates are not souvenirs. The Office of Vertical Compliance maintains a public register of tilted annotations on the ninth floor, open on alternate Thursdays, where the drawer may be inspected but the template may not be borrowed.