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Joris Hoefnagel's "Guide for Constructing the Letters f and g" from ca. 1591-1596. The owl looking at itself in a convex mirror evokes the German word Eulenspiegel (owlmirror), which means "roguish trick"! https://t.co/7eoklkeO4R #arthistory #twitterstorians #earlymodern
1st Newtonian color wheels in an art manual, in 1708 edition of Boutet https://t.co/JPiHFKeaEl #histSTM #earlymodern
#earlymodern alchemist Isaac Hollandus's Hand of the Philosopher @RitmanLibrary: https://t.co/v8ZTL6bA8n #histSTM