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The Use of

of Longitude m Time betwixt the twoPlaces.

Thus the Difference of Longitude be-twixt Rome and Conjiantinople , will be foundto be 19 Degrees, or 1 Hour and Quarter; betwixt Mexico and Pekin in Chine,

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140 Degrees, or 9 T Hours.

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Pr ob. IV. Any Place being given , toall those Places that are in the fame Lati-tude with the said Place.

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The Latitude of the given Place beingmarked upon the Meridian, turn the Globeround its Axis, and all those Places that palsunder the same Mark, are in the same La-titude with the given Place, and have theirDays and Nights of equal Lengths. Andwhen any Place is brought to the Meridian,all the Inhabitants, that lie under the upperSemicircle of it, have their Noon or Mid-day at the same Point of absolute Time ex-actly.

Pr ob. V. The Day of the Month beinigiven , to find the Sun’s Place in the Ecliftick , and bis Declination.

j. To find the Sun’s Place: Look for theDay of the Month given irt the Calendar ofMonths upon the Horizon, and right againstit you’ll find that Sign and Degree of the

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