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 194
ne, yet were at the charge to buy the inftrument, and partlyfor my owneeafe. Tor otitispainefuR for others to tranfcribcmy copie> fo it is trouble fame for me to glue (atisfaBion herein toatl that defire it. If I finde this to give you contentt it Jball in*,courage me to do the Itkefor my… … CHAP. I. C/rfce defcription of the Staffe. He ^VejJ* -y/^rjfv? is an inftrument wellknown to our Sea-men j and much ufedby the ancient Aitronomers &orhers,fer-ving Altronomically for obferuation ofaltitude and angles of diflance in the hca-ucns, Geometrically for perpendicular,heights and…
Astronomy · Puritans
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