_Calculator_, (an Instrument) described, 436.
_Calendar_, how to inscribe the Golden Numbers rightly in it for
shewing the days of New Moons, 423.
_Cannon-Ball_, it’s swiftness, 89.
In what times it would fly from the Sun to the different Planets and
fixed Stars, _ib._
CASSINI, his account of a double Star eclipsed by the Moon, 58.
His Diagrams of the Paths of the Planets, 138.
_Catalogue_ of the Eclipses, 327.
Of the Constellations and Stars, 367.
Of remarkable _Æras_ and events, 433.
_Celestial Globe_ improved, 438.
_Centripetal and centrifugal forces_, how they alternately overcome
each other in the motions of the Planets, 152-154.
_Changes in the Heavens_, 403.
_Chords_, line of, how to make, 369.
_Circles_, of perpetual Apparition and Occultation, 128.
Of the Sphere, 198.
Contain 360 Degrees whether they be great or small, 207.
_Civil Year_, what, 411.
COLUMBUS (CHRISTOPHER) his story concerning an Eclipse, 330.
_Clocks_ and _Watches_, an easy method of knowing whether they go true
or false, 223.
Why they seldom agree with the Sun if they go true, 228-245.
How to regulate them by Equation Tables and a Meridian line, 225,
226.
_Cloudy Stars_, 402.
_Cometarium_ (an Instrument) described, 437.
_Constellations_, antient, their number, 396.
The number of Stars in each, according to different Astronomers, 399.
_Cycle_, Solar, Lunar, and _Romish_, 420.
Of _Easter_, 425.