JF Ptak Science Books Quick Post
This is a fine detail from a late 17th century print of Gemma Frisius (1508-1555). He died young but with many accomplishments, not the least of which was being a mathematician of stature. And a cartographer. And surveyor. And instrument maker. And physician.
In the original print (available for sale in our blog bookstore) Frisius' eye occupy less than a half-square inch of paper--still they are powerful and direct in spite of their size.
The legend of the engraving read "Gemma Frisius, Doccomiensis, Medicus et Mathematicus.Ut simulat solem radiantis gemma pyropi, Sic Gemmam artifici picta tabella manu: Haec vultum dedit, ipse animi monumenta perennis; Ne quid in exstincto non superesse putes. Vita escessit Louany VIII. Kal., Iun. MCLV, Aet XLVII."
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