First Volume - Commentary on Euclid First Volume - Commentary on Euclid - Preface and Divisions - Page 11
First Volume - Prolegomena to the Mathematical Disciplines - Contents - Page 9



First Volume - Commentary on Euclid First Volume - Commentary on Euclid - Preface and Divisions - Page 11 First Volume - Commentary on Euclid - Preface and Divisions - Page 12