AN EXPOSITION,

&c.

OF THE

NATURE, FORCE, ACTION, AND OTHER

PROPERTIES

OF

GRAVITATION ON THE PLANETS;

AND OF THE

EFFICIENT CAUSES OF THE

RELATIONS BETWEEN THEIR VELOCITIES, PERIODIC TIMES,

MEAN DISTANCES FROM THE SUN, AND THE

FORCES OF GRAVITATION.

5

BY THE AUTHOR OF

"A NEW ANALOGY FOR DETERMINING THE DISTANCES OF THE PLANETS FROM

THE SUN, AND OF THE SATELLITES FROM THEIR PRIMARIES,

"A NEW INTRODUCTION TO THE MATHEMATICS," &c.

LONDON:

WHITTAKER AND CO. AVE MARIA LANE.

1842.