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 426
fpace for the infeription of themoneths and dayes, on the fame center Af and femidiameterA T9 defcribe the arke TD, which fhall feme for either tro-pique. 3 Divide the line A Tin the point £, in fuch proportion,as that A T being 10000, A E may be 65 56, and there drawanother arke £F, which… … nd on the center (j and femidtameter <j & defcribe the arke£T>, which (hall feruc for a fourth pare of the ediottq u.5 This part of the eclipriqne may be divided into three Signer
Astronomy · Puritans
Internet Archive · Princeton University Library · Public Domain Mark 1.0. Free to use for anything.
