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and ſweep this circle concentric with the Equinoctial, and this is the parallel of Cancer, which will be 66° 32' from the Pole, or 33° 16' on the Sector. Then, to find the Tropic of Capricorn, you must make 45° on theſe lower Tangents a parallel distance of 45° on the upper Tangents, and take 23° 28' beyond that, for the parallel of Capricorn. Then, the Arctic Circle is 23° 30' from the Pole: and theſe are all the concentric Circles in the Plane, except the Circle of the Months, which is near the outward edge of the Planisphere. The next Circle is the Ecliptic, the apparent annual path of the Sun, and it is drawn thus:— ſet off the Secant of 23° 30' from Cancer, on the Solſtitial Colure towards the Pole, and this ſhall be it’s center; and it’s Pole is at the interſection of the Arctic Circle, and the Meridian or Solſtitial Colure; in this Circle, the ſigns of the Zodiac are placed; and, in tables of the Right Aſcenſion of the Ecliptic, you will find the proper diviſions of this Circle into ſigns and degrees; then lay a thread, or an Index, from the Pole, through every degree of Right Aſcenſion of the Ecliptic, and it will give points in this Circle where all the Signs and Degrees do fall; the fixed Stars are laid down the ſame way by their right Aſcenſion and Declination as found in the tables of the Stars, and thoſe in my Planisphere are all of the firſt and ſecond Magnitude, and their places computed up to the preſent year 1802, incluſive.— Then through the firſt points of Cancer and Capricorn, draw a ſtraight line, and this will be the Meridian and Solſtitial Colure; then again through the firſt points of Aries and Libra draw another line,
