P-block staging entry validated for model fit. Imported from staging batch duell-thimm-p, source entry 1717. Retitled from mixed subject heading and manuscript title. Unpublished manuscript, circa 1750, formerly in the Vigeant collection; the Princeton Review heading was removed. Individually bibliographically reviewed in phase 88 against the complete Thimm entry and, where needed, independent catalogue evidence. Responsibility statement classified as unnamed or pseudonymous in quality phase 98f; no artificial person authority created.