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HAEC Scientia docet nos qui terram metiamur, atque unius cujusque praediis limites praescriba∣mus: Integra continetur quindecim Libris Elementorum Euclidis: Prio∣res tredecim sine ulla controversia Euclidi ascribuntur ab omnibus, po∣steriores vero duo, a quibusdam Hyp∣sicli Alexandrino tribuuntur.
Elementa Euclidis dividi possunt in quatuor partes; quorum prima pars sex prioribus libris contenta, agit de planis; secunda, quae ex tribus se∣quentibus
conflatur, affectiones nu∣merorum examinat; tertia pars Ele∣mentorum Euclidis, quae solo libro de∣cimo constat, de lineis commensura∣bilibus, ac incommensurabilibus agit; quarta denique pars, quam residui libri constituunt de solidis, aut corpo∣ribus disserit.
Prima pars Elementorum Euclidis rursus triplex est; priores enim qua∣••uor libri agunt de planis absolute spectatis, de eorum aequalitate, aut inaequalitate; quintus disserit de pro∣portionibus magnitudinum in genere; sextus planarum figurarum propor∣tiones exponit.
Geometria dividi potest in has tres partes subordinatas, in Altimetriam, Planimetriam, & Stereometriam; Altimetria est ars dimetiendi lineas rectas, Planimetria est ars dimetiendi superficies, Stereometria est ars dime∣tiendi solida, sive corpora.
Lineas metiuntur lineae notae mag∣nitudinis, superficiem metitur qua∣dratum
mensurae notae, solidaque me∣titur cubus notae molis.
Euclides, Hero Mechanicus, Four∣nierius, Malapertius, Maginus, Cla∣vius, Nicolaus Tartalea Italice, Adri∣anus Metius, Samuel Marolois, Simon Stevinius, Daniel Sant Bechius.