The art of dialling by a new, easie, and most speedy way. Shewing, how to describe the houre-lines upon all sorts of plaines, howsoever, or in what latitude soever scituated: as also, to find the suns azimuth, whereby the sight of any plaine is examined. Performed by a quadrant, fitted with lines necessary to the purpose. Invented and published by Samuel Foster, professor of astronomie in Gresham Colledge.

Title

The art of dialling by a new, easie, and most speedy way. Shewing, how to describe the houre-lines upon all sorts of plaines, howsoever, or in what latitude soever scituated: as also, to find the suns azimuth, whereby the sight of any plaine is examined. Performed by a quadrant, fitted with lines necessary to the purpose. Invented and published by Samuel Foster, professor of astronomie in Gresham Colledge.

Author

Foster, Samuel, d. 1652.

Publication

London :: Printed by Iohn Dawson for Francis Eglesfield, and are to be sold at the signe of the Marigold in Pauls Church-yard,

1638.

Rights/Permissions

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Subject terms

Dialing -- Early works to 1800.

Quadrant -- Early works to 1800.

Link to this Item

https://name.umdl.umich.edu/A01089.0001.001 content_copy

Cite this Item

"The art of dialling by a new, easie, and most speedy way. Shewing, how to describe the houre-lines upon all sorts of plaines, howsoever, or in what latitude soever scituated: as also, to find the suns azimuth, whereby the sight of any plaine is examined. Performed by a quadrant, fitted with lines necessary to the purpose. Invented and published by Samuel Foster, professor of astronomie in Gresham Colledge." In the digital collection Early English Books Online. https://name.umdl.umich.edu/A01089.0001.001. University of Michigan Library Digital Collections. Accessed May 30, 2025. content_copy

Contents

• title page
• To the Reader.
• imprimatur
• illustrations
• THE DESCRIPTION OF THE QVADRANT, and the manner how the lines are inscribed and divided.
  • CHAP. I.
    • 1. The description of the fore-side.
    • 2. The description of the backe-side.
  • CHAP. II.
  • CHAP. III.
    • The Amplitude.
  • CHAP. IIII.
  • CHAP. V.
  • CHAP. VI.
    • 1. To find the Rectifying arke.
    • 2. To find the Elevation of the Pole above the Plaine.
  • CHAP. VII.
    • 1. To find the Rectifying Arke.
    • 2. To find the Elevation of the Pole above the Plaine.
  • CHAP. VIII.
    • 1. For the Rectifying-Arke.
    • 2. To find the Elevation of the Pole above the Plaine.
  • CHAP. IX.
    • 1. To find the Rectifying-Arke.
    • 2. To find the Elevation of the Pole above the Plaine.
  • CHAP. X.
  • CHAP. XI.
  • CHAP. XII.
    • 1. What Pole is elevated above the Plaine.
    • 2. What part of the Meridian ascendeth or de∣scendeth from the Horizontall line of the Plaine?
    • 3. To which part of the Meridian is the style with the substyle to be referred, as making with it an acute angle?
    • 4. On which side of the Meridian lyeth the substyle?
    • 5. What plaines have the line of 12 upon them, and which not?
    • 6. Whether the North or South part of the Meri∣dian serveth for the line of 12?
    • 7. Which way the style pointeth, and how it is to bee placed?
    • 8. When is it that that part of the Meridian next the substyle, and the line of twelve doe goe contrary wayes?
    • 9. How much the Meridian line ascendeth or descendeth from the Horizon∣tall line?
    • ¶These directions are sufficient for the bestowing of every line into its proper place and coast. As may bee seene in the Example of the ninth Chap∣ter. For,
  • CHAP. XIII.
• AN APPENDIX Shewing a ready way to find out the Latitude of any place by the Sunne.
  • 1. To find the Meridian line.
  • 2. To find the Sunnes Meridian altitude.
  • 3. To find the Sunnes declination.
  • 4. By the Meridian Altitude, and declination of the Sun had; how to find the Latitude of the place, or the Elevation of the Pole above the Horizon.