Diagram of the Winds (II) — "Unlike the wind diagram on the preceding folio, this one is devoid of figural imagery or ornament. A schematic T-O map of the inhabited world occupies the center of the diagram. The wind names are written in the colored segments of the penultimate ring. Characterizations of each wind, comprising excerpts or adaptations of portions of the Spanish scholar Isidore of Seville’s (d. 636 CE) scientific work, De natura rerum (On the nature of things, XXXVII, i-iv), fill the corresponding trapezoidal sectors."

Featured on PDR in the collection Cosmography Manuscript (12th Century)

This wonderful series of medieval cosmographic diagrams and schemas are sourced from a late 12th-century manuscript created in England. Coming to only nine folios, the manuscript is essentially a scientific textbook for monks, bringing together cosmographical knowledge from a range of early Christian writers such as Bede and Isodere, who themselves based their ideas on such classical sources as Pliny the Elder, though adapting them for their new Christian context. As for the intriguing diagrams themselves, The Walters Art Museum, which holds the manuscript and offers up excellent commentary on its contents, provides the following description: