目次

Contents: Preface; Kepler’s derivation of the elliptical path; How did Kepler discover his first two laws?; The error in Kepler’s acronychal data for Mars; The inner planets and the Keplerian revolution; Newton and some philosphers on Kepler’s laws; Horrocks, harmonies and the exactitude of Kepler’s third law; On the origin of Horrock’s lunar theory; From Kepler’s laws, so-called, to universal gravitation: empirical factors; Newton and the Eötvös experiment; Corrigenda et addenda; Index.