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Sect.3. the Globes.

the two Intersections, will be the Differenceof Latitude required. Or, if the Placesproposed are on the same Side of the Equa-tor, having first found their Latitudes, sub-tract the lesser from the greater; but if theyare on the contrary Sides of the Equator,add them both together j and the Differencein the first Cafe, and the Sum in the latter,will be the Difference of Latitude required.

Thus, the Difference of Latitude betwixtLondon and Rome will be found to be 91Degrees j betwixt Paris and Cape BonneLiperance 83 Degrees.

Prob. III. To find the Difference of Lon-> gitude betwixt any two given Places.

Bring each of the given Places successivelyto the Meridian, and fee where the Meridiancuts the Equator each time; the Numberof Degrees contained betwixt those twoPoints, if it be less than 180 Degrees, other-wise the Remainder to 360 Degrees willbe the Difference of Longitude required.Or,

Having brought one of the given Placesto the Meridian, bring the Index of theHour-Circle to 12 o’Clock; then havingbrought the other Place to the Meridian,the Number of Hours contained betweenthe Place the Index was first set at, and thePlace where it now points, is the Difference

of