2 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 5559.22 Petition of Comparative Validation, Type Delta
• MS 1774.80 Tier Alpha (Metronomic)

  Tier Alpha (Metronomic) constitutes a specialized classification for cataloging practices, artifacts, and phenomena that exhibit a direct an…