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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 248

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 248
The ufe «f the Meridian Line'. i i 3 out of the Meridian Line, and prick it down in the Meridians from A untoM, and from E to D, and draw the right Line M D for the Pa¬ rallel of the fecond place, and the right Line A D for the Line ofdi- ftanee between both places t fo the Angle MAD (hall give… … s.To find the duantities of this Angle M AD, I may either make ufe of the Protra£Vor,or elfeof a Line of Chords, and folopenmy Com- paffes unto one of the Chords o£ 6ogr. and letting one foot in the Point A, with the other I dcfcribe an occult Ark of a Circle, inter- feftirg the Meridian ip F, and…

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

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