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The Description and Use of the Sector (1624)

Gunter, Edmund · leaf 72

An illustration from The Description and Use of the Sector, 1624, leaf 72
the ecliptique, and the lines drawne parallell to theequator through 3* and -^fhall be the tropiques. Hauing thefe common feftions with the plane of theme-ridian,ifwe fliall diuide each diameter of the Ecliptiqucinto$ogr. m fuch fort as the Sines are diuided on the Setfor.Thefirit Sogr.hom ^toward… … If againe we divide A P} A S, in tlie like fort, and fct tothe numbers 10. 20. 30. &c. vnto pofr. the lines drawnethrough each of thefe degrees parallell to the equator, fhall/hew the declination of the Sunne,and reprefent the parallelsof latitude. If farther we diuide AE^A^E^ and his parallels…

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