Chapter II
Reading edition
CHAPTER II
PHILOSOPHY OF GRAVITATION--(continued)
ART.18.GRAVITATION ATTRACTION24
"19.UNIVERSALITY OF GRAVITATION24
"20.DIRECTION OF THE FORCES26
"21.PROPORTION OF THE FORCES26
"22.LAW OF INVERSE SQUARES27
"23.TERRESTRIAL GRAVITY29
"24.CENTRIFUGAL FORCE30
"25.KEPLER'S LAWS32
"26.FIRST LAW OF KEPLER33
"27.SECOND LAW OF KEPLER36
"28.THIRD LAW OF KEPLER37