1. Harley MS 531, ff 163r-172v Reference (shelfmark): Harley MS 531, ff 163r-172v Title: Exafenon, attributed to Richard of Wallingford Scope & Content: Exafenon, attributed to Richard of Wallingford (entitled 'Liber fratris Perscrutatoris de impressionibus aeris' in the table of contents). Decoration: Initials in blue. Collection Area: Western Manuscripts Languages: Latin Date Range: Mid 15th century Extent: 10 folios.
