The description and use of the sector, crosse-staffe, and other instruments : with a canon of artificiall Sines and Tangents, and the use thereof in astronomie, navigation, dialling and fortification .. (1636)
Gunter, Edmund, 1581-1626 · London : Printed by William Iones for Iames Bowler · leaf 412
e diftance betwecne the horizon and thcparallell, bothwhich may be reprefented in this maner. On the center 2? and any femidiarneterS H, defcribe anocculrarkcofacirclc, and therein inferibe the chords offuchparallels of altitude as you intend ro draw on the plane, (Ihaue here put them for ij. 30.45… … That done, confider your plane (which nereid1 example 46 Bee the 2 \ s The defer ipion of the fAr&Eeh of the horiz; >t. the Sojth face of our vertical! plane , f*ge 168 ) whereinbauiiig drawne both the horizontal! and vercicall lines, as I(hewed before, jfirittake out *AB the length of the…
Astronomy · Puritans
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