Its contents are as follows: Euclid's theory of parallel lines; Propositions of incidence; The symbolic representation and Pappus' theorem; Theorems proved from the propositions of incidence; The fundamental hypothesis; The symbols of the real points of a line; Involution and harmonic ranges; Related ranges and pencils; Conics; Assignment of two absolute points, properties of circles; The parabola; The rectangular hyperbola; Theorems on conics; Length and distance; Equation of conic and line.
Ang mga nilalaman nito ay ang mga sumusunod: Euclid's theory ng pagpaparis linya; Propositions ng pagkahulog; Ang sinasagisag na representasyon at papus' teorama; Theorems proved mula sa propositions ng pagkahulog; Ang mga pangunahing teorya; Ang mga simbolo ng tunay na puntos ng isang linya; kaguluhan at maharmonya saklaw; Related saklaw at pencils; Conics; assignment ng dalawang absolute point, pag-aari ng circles; Ang parabola; Ang hugis-parihaba hyperbola; Theorems sa conics; Length at distansya; equation ng alimusod at linya.