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The Description and Use of the Sector (1624)

Gunter, Edmund · leaf 308

An illustration from The Description and Use of the Sector, 1624, leaf 308
e angle /t >betweene theplane and the proper meridian is a right angle,the fide P£ isthe height of the pole aboue the plane,and then the angles atthe pole between the groper meridian and the houre-circlcsbeing gathered into a table. As the fine of pogr. to the fine of the pole aboue the plane:So… … amc YjfcV TrkWfinpUurl of m tiotire-Um fai^e extent wi£*reach from the tangent of 14^.41 m. theangle At the pole thonging to the lioure of 12, vnto thetangent of 4^.30 ra.for the arke of the plane betweene thefubftylar and the hourc of 125 and fro the tangent of 29 gr.41 w.vnto the tangent of 9^.41…

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