_General Phenomena_ of a superior Planet as seen from an inferior, 149.
_Gravity_, demonstrable, 101-104.
Keeps all bodies on the Earth to it’s surface, or brings them back
when thrown upward; and constitutes their weight, 101, 122.
Retains all the Planets in their Orbits, 103.
Decreases as the square of the distance increases, 106.
Proves the Earth’s annual motion, 108.
Demonstrated to be greater in the larger Planets than in the smaller;
and stronger in the Sun than in all the Planets together, 158.
Hard to understand what it is, 160.
Acts every moment, 162.
_Globe_, improved celestial, 438.
_Great Year_, 251.