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all the circles of the sphere, or heavens, whether they are large or small, have 360 degrees allowed to each of them.
Colours are said to be two great moveable circles, crossing each other at the poles of the world, one cutting the equinox at the beginning of Aries, Cancer, and Capricorn, and so dividing the globe into four equal parts.
Horizon is a great circle which divideth the upper hemisphere, that is, the upper part of the world, from the lower, we always being supposed to be between.
Meridian is a great circle passing through the pole of the world, and the poles of the horizon, called the Zenith and Nadir, (which are two points, one directly over our heads, the other directly under our feet) on which the sun is always just at noon, and to go directly north and south, the meridian is changed; but to go to east and west, it is changed to sixty miles, either way makes one degree, or four minutes of time difference under the equinox, viz. 60 miles eastward, it is noon four minutes sooner, and sixty miles westward, four minutes later.
Tropics are supposed to be two lesser circles, parallel with the equinoctial, and distant from it on either side 23 degrees 31 minutes each; the ecliptic line touches the tropics of Cancer on tho north sido of the equinoctial, and it touches tho tropics of Capricorn on the south side thereof, so that the sun hath his motion between these two circles.
The Arctic circle is equally distant from tho north pole, as the tropics are distant from the equinox-23 degrees 31 minutes.
The Antarctic circle is the same distance from the south pole.
Zones, so called, are five in number, two cold, two temperate, and one hot, which are divided by
