CONTENTS. 



SECTION IV. 



Theory of Jupiter's Satellites Effects of the Figure of Jupiter upon his Satel- 

 litesPosition of their Orbits Singular Laws among the Motions of the 

 first Three Satellites Eclipses of the Satellites Velocity of Light Aber- 

 ration Ethereal Medium Satellites of Saturn and Uranus . Page 31 



SECTION V. 



Lunar Theory Periodic Perturbations of the Moon Equation of Centre 

 Evection Variation Annual Equation Direct and Indirect Action of 

 Planets The Moon's Action on the Earth disturbs her own Motion 

 Excentricity and Inclination of Lunar Orbit invariable Acceleration- 

 Secular Variation in Nodes and Perigee Motion of Nodes and Perigee 

 inseparably connected with the Acceleration Nutation of Lunar Orbit- 

 Form and Internal Structure of the Earth determined from it Lunar, 

 Solar, and Planetary Eclipses Occultations and Lunar Distances Mean 

 Distance of the Sun from the Earth obtained from Lunar Theory- 

 Absolute Distances of the Planets, how found 39 



SECTION VI. 



Form of the Earth and Planets Figure of a Homogeneous Spheroid in 

 Rotation Figure of a Spheroid of variable Density Figure of the Earth, 

 supposing it to be an Ellipsoid of Revolution Mensuration of a Degree of 

 the Meridian Compression and Size of the Earth from Degrees of Meridian 

 Figure of Earth from the Pendulum ... .50 



SECTION VII. 



Parallax Lunar Parallax found from Direct Observation Solar Parallax 

 deduced from the Transit of Venus Distance of the Sun from the Earth 

 Annual Parallax Distance of the Fixed Stars . 59 



SECTION VIII. 



Masses of Planets that have no Satellites determined from their Perturbations 

 Masses of the others obtained from the Motions of their Satellites Masses 

 of the Sun, the Earth, of Jupiter, and of the Jovial System Mass of the 

 Moon Real Diameters of Planets, how obtained Size of Sun, Densities 

 of the Heavenly Bodies Formation of Astronomical Tables Requisite Data 

 and Means of obtaining them 63 



SECTION IX. 



Rotation of the Sun and Planets Saturn's Rings Periods of the Rotation 

 of the Moon and other Satellites equal to the Periods of their Revolutions 

 Form of Lunar Spheroid Libra tion, Aspect, and Constitution of the 

 Moon Rotation of Jupiter's Satellites 74 



