Kepler, Johannes, 1571-1630, Towneley, Richard (bookplate) · Francofvrti, Apud G. Tampachium · leaf 187
Ad Lib. III. Cap. XX. m CE i^0509.EricCN … KI & CN, 110950. Eft autem quadratum CK compofitum ex quadrato huius difFerentise CR. &exquadrato KR vel IN: Gui fiadiun- gacurredangulumfiibdciplis KI & C N fcilicetfiib KG & CF: ^coaceruaturquadratum, CG diagoHalis in Trape- ziocirculi KGFC: danturquetriangulorum KGC>GKF latcraomnia : quare…
