_Earth_, it’s bulk but a point as seen from the Sun, 3 It’s Diameter,
annual Period, and Distance from the Sun, 47.
Turns round it’s Axis, _ib._
Velocity of it’s equatoreal Parts, _ib._
Velocity in it’s annual Orbit, _ib._
Inclination of it’s Axis, 48.
Proof of it’s being globular, or nearly so, 49, 314.
Measurement of it’s surface, 50, 51.
Difference between it’s Equatoreal and Polar Diameters, 76.
It’s motion round the Sun demonstrated by gravity, 108, 111.
by Dr. BRADLEY’s observations, 113.
by the Eclipses of Jupiter’s Satellites, 219.
It’s diurnal motion highly probable from the absurdity that must
follow upon supposing it not to move, 111. 120.
and demonstrable from it’s figure, 116.
this motion cannot be felt, 119.
Objections against it’s motion answered, 112, 121.
It has no such thing as an upper or under side, 122.
in what case it might, 123.
The swiftness of it’s motion in it’s Orbit compared with the velocity
of light, 197.
It’s diurnal and annual motions illustrated by an easy experiment,
200.
Proved to be less than the Sun and bigger than the Moon, 315.
_Easter Cycle_, 425.
_Eclipsareon_ (an Instrument) described, 442.
_Eclipses_, of Jupiter’s Satellites, how the Longitude is found by
them, 207-218.
they demonstrate the velocity of light, 216.
Of the Sun and Moon, 312-327.
Why they happen not in every month, 316.
When they must be, 317.
Their limits, _ib._
Their Period, 320, 326.
A dissertation on their progress, 321-324.
A large catalogue of them, 327.
Historical ones, 328.
More of the Sun than of the Moon, and why, 331.
The proper Elements for their calculation and projection, 353-390.
_Ecliptic_, it’s Signs, their names and characters, 91.
Makes different Angles with the Horizon every hour and minute, 275.
how these Angles may be estimated by the position of the Moon’s
horns, 260.
It’s obliquity to the Equator less now than it was formerly, 405.
How it’s Signs are numbered, 354.
_Elongations_, of the Planets, as seen by an observer at rest on the
outside of all their Orbits, 133.
Of Mercury and Venus as seen from the Earth, illustrated, 142.
it’s quantity, 143.
Of Mercury, Venus, the Earth, Mars, and Jupiter; it’s quantity as
seen from Saturn, 147.
_Epochas_ or _Æras_, 433.
_Equation_ of time, 224-245.
Of the Moon’s Place, 355.
Of the Sun’s Place, _ib._
Of the Nodes, 363.
_Equator_, day and night always equal there, 126.
Makes always the same Angle with the Horizon of the same place; the
Ecliptic not, 274, 275.
_Equinoctial Points_ in the Heavens, their precession, 246,
a very different thing from the recession or anticipation of the
Equinoxes on Earth, the one no ways occasioned by the other, 249.
_Excentricities_ of the Planets Orbits, 155.