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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 320

An illustration from 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, leaf 320
in the vpp.r Andlower declining poUrs which are parallel to any of the otherS^pucc circles* But Te find the declination of a Pi4 net 1*5 But in the horizo irall aid all other pii.us, the flyle willcut the plane with an acu:e an*le , a.id the ruare linesyn\l m-cc at the root of the ltyle, and there… … 12 6 The defer if Hon of the hsu re lines {paces betwecEe tlit houre circles being equall, there i$na>reed of ftirthti pitcept, butorely to draw a circle and todi-uideit into 24 equall parts for the 24 houres, acd iubdiuideeach houre into halues and quarters > and then to fee vp thefiyle…

Astronomy · Puritans

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