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 9246.33 Keeper of the Threshold

  The Keeper of the Threshold is the ceremonial title traditionally held by the head of the Office of the Clerk of the Threshold, responsible …

• MS 7040.62 Progressive

  Progressive is a polyvalent term in Tower taxonomy, primarily designating an epistemological stance—the Progressive school—and its associate…

• MS 5104.89 Seventh Recurrence of the Silent Chime