Practices and doctrines — box 38 of 54

• MS 8175.01 Sentinel Void

  The formal definition is established in Clause 17 of the Third Concordance Annex C: "A Sentinel Void is any continuous space, internally con…

• MS 6199.28 Sequencers

  Sequencers are specialized clerks employed by the Bureau of Precedential Analysis who operate under the procedural and interpretive framewor…

• MS 2671.20 Sequestered Stacks

  Sequestered Stacks refers to a collective designation for the physical and metaphysical isolation of archival materials pursuant to the Prot…

• MS 8705.54 Sequestering

  Sequestering (often officially termed "Categorical Sequestration" or "Provisional Isolation") is the administrative procedure for the indefi…

• MS 9025.04 Seventy-Two Hour Review

  The Seventy-Two Hour Review is a mandatory procedural and ontological assessment period for newly manifested or anomalously modified holding…

• MS 7530.81 Sewn Appendix

  A sewn appendix is a supplemental document physically bound to a primary Concordance, Annex, or Sub-Appendix using archival-grade thread at …

• MS 8764.35 Shadows of Vanished Melodies

  Shadows of Vanished Melodies are categorized under Annex Γ-4, clause 7(b) of the Seventh Concordance as 'sonic-absential topological stains.…

• MS 1028.12 Sigh of Archivist Kappa

  Sigh of Archivist Kappa is the title given to a disputed administrative judgment (Casefile 71b/-7) and its associated procedural anomaly, bo…

• MS 0892.18 Sigil

  The Sigil is the basic unit of legal and bureaucratic notation within The Tower, serving as a legally binding mark of authority, classificat…

• MS 5361.61 Sigil Alpha

  Sigil Alpha (also known colloquially as the Clasped Gauntlet) is the foundational Authoritative Sigil of the Tower, from which all subsequen…

• MS 6725.54 Sigil of Perpetual Custody

  Sigil of Perpetual Custody (designation: Ωδ) is the definitive imprint applied to an object or record to signify its transition into the Per…

• MS 3992.21 Sigils of the Obsidian Guard

  Sigils of the Obsidian Guard refer to a unique system of heraldic and operational insignia documented within the prologue and operational an…

• MS 3064.10 Sigma (σ)

  Sigma (σ) is the nineteenth letter of the Tower's operational alphabet and, in its capacity as a classification suffix, denotes phenomena ex…

• MS 0435.12 Sigma Pulse

  Sigma Pulse is a disputed subsidiary temporal standard referenced in the maintenance logs for equipment certified under Security Protocol Si…

• MS 0691.26 Sigma-class

  Sigma-class is a taxonomic classification, codified under Ordinance Gamma-7, for phenomena, objects, and security protocols characterized by…

• MS 7186.80 Silas the Unseen

  Silas the Unseen (formal designation: Archival Subject Δ-77/Θ) refers to the persistent bibliographical presence attributed to an individual…

• MS 2531.30 Silence of Floor 771

  “The silence of Floor 771 is not an absence, but a form of optical pressure.”…

• MS 8433.67 Silent Audit

  The Silent Audit is a cardinal-level administrative procedure mandated under the Seventh Concordance, instituted to verify the physical, num…

• MS 5583.32 Silent Audits

  The Silent Audits constitute a primary mechanism of administrative verification employed by the Librarians, distinguished by their execution…

• MS 7795.29 Silent Column

  Per Concordance 72, Annex Δ, a Silent Column is defined as "any pillar, principle, or recorded phenomenon which sustains a classified volume…

Arrangement within a series is by title. Box numbers describe the present arrangement and are not a permanent feature of the holding.