Inside Out Library · Explore

The works of Edmund Gunter: : containing the description and use of the sector, cross-staff, bow, quadrant, and other instruments. With a canon of artificial sines and tangents to a radius of 10.00000 parts, and the logarithms from an unite to 10000: The uses whereof are illustrated in the practice of arithmetick, geometry, astronomy, navigation, dialling, and fortification. And some questions in navigation added by Mr. Henry Bond, teacher of mathematicks in Ratcliff, near London. To which is added, the description and use of another sector and quadrant, both of them invented by Mr. Sam. Foster, late professor of astronomy in Gresham Colledge, London, furnished with more lines, and differing from those of Mr. Gunters both in form and manner of working (1673)

Gunter, Edmund, 1581-1626 · London : Printed by A. C.[larke]. for Francis Eglesfield, at the Marigold in St. Paul's Church-yard · leaf 386

An illustration from The works of Edmund Gunter: : containing the description and use of the sector, cross-staff, bow, quadrant, and other instruments. With a canon of artificial sines and tangents to a radius of 10.00000 parts, and the logarithms from an unite to 10000: The uses whereof are illustrated in the practice of arithmetick, geometry, astronomy, navigation, dialling, and fortification. And some questions in navigation added by Mr. Henry Bond, teacher of mathematicks in Ratcliff, near London. To which is added, the description and use of another sector and quadrant, both of them invented by Mr. Sam. Foster, late professor of astronomy in Gresham Colledge, London, furnished with more lines, and differing from those of Mr. Gunters both in form and manner of working, 1673, leaf 386
Vented Declining Plane* m a lar, I find a Chord of 38 and inferibe ic into this Circle, from the Sabftylar toward the Meridian for the Hour of j. In, like manner a Chord of 19 gr. 23 for the Hour of n, and a Chord of 44, gr. 13© m\ for the Hour of 10 ; and fo for the reft of the Hours, their Halfs*… … f. I draw Right Lines* through the Center and the Terms of thefe jChords, and thefe Lines fo drawn are the Hour-lines required. Laftly, I letup the Style over the Subftylar, fo as it may cut the Plane in the Center, and there make an Angle with the Subftylar of 34\?r* ,33 according to the height of…

Mathematical instruments · Logarithms · Sundials · Navigation · Booksellers' catalogs -- Great Britain -- 1673 · Imprint 1673

Internet Archive · John Carter Brown Library · Public domain (published before 1931). Free to use for anything.

More pictures from The works of Edmund Gunter: : containing the description and use of the sector, cross-staff, bow, quadrant, and other instruments. With a canon of artificial sines and tangents to a radius of 10.00000 parts, and the logarithms from an unite to 10000: The uses whereof are illustrated in the practice of arithmetick, geometry, astronomy, navigation, dialling, and fortification. And some questions in navigation added by Mr. Henry Bond, teacher of mathematicks in Ratcliff, near London. To which is added, the description and use of another sector and quadrant, both of them invented by Mr. Sam. Foster, late professor of astronomy in Gresham Colledge, London, furnished with more lines, and differing from those of Mr. Gunters both in form and manner of working

More like this