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 380
andantes efdeclimshn, xt $ Tcfittde the dijlance lettveene the txis andtkehiure-lwes. As the coiine of the houre from the fubftylar, is to the fine of oo£r.So thelcngth of the ftylef to the diftance between the axis and the houre-line. … As if in the former example of the meridian plane, whereB C the height of the ftyle is fuppofed to be 10 inches, itwere required to find the diftance between B to the top of theftyle and the point wherein tie houre of ai in the morning Aaa doth 116 The defcriplon eft he Trofiqnes doth crofTe the…
Astronomy · Puritans
Internet Archive · Princeton University Library · Public Domain Mark 1.0. Free to use for anything.
