. Astronomy without a telescope:. lavM9XTV * XVIII. POSITION ABOVE THE HOEIZON. 61 ness, by estimating for the intermediate positionof the center, and striking the circle exactly throughthe points of intersection of all the circles in thediagram. Or, the circle of the horizon may bedrawn independently, for any latitude, by findingin the table of differences (page 56) the differencefor 30° or 60° of declination in the given latitude, setting off the semi-diurnal arcs from any meridianon Map No. XIV., on the Circles of Declination(parallels), and finding a point in the meridian fromwhich, as a c

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. Astronomy without a telescope:. lavM9XTV * XVIII. POSITION ABOVE THE HOEIZON. 61 ness, by estimating for the intermediate positionof the center, and striking the circle exactly throughthe points of intersection of all the circles in thediagram. Or, the circle of the horizon may bedrawn independently, for any latitude, by findingin the table of differences (page 56) the differencefor 30° or 60° of declination in the given latitude, setting off the semi-diurnal arcs from any meridianon Map No. XIV., on the Circles of Declination(parallels), and finding a point in the meridian fromwhich, as a center, the horizon circle may bestruck, passing through the given points on theDeclination Parallels, and also crossing the Equi-noctial in two exactly opposite points.

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