The longitude not found, or, An answer to a treatise written by Henry Bond, Senior, shewing a way to find the longitude by the magnetical inclinatory needle wherein is proved that the longitude is not, nor cannot be found by the magnetical inclinatory needle / by Peter Blackborrow, Gent.

Title

The longitude not found, or, An answer to a treatise written by Henry Bond, Senior, shewing a way to find the longitude by the magnetical inclinatory needle wherein is proved that the longitude is not, nor cannot be found by the magnetical inclinatory needle / by Peter Blackborrow, Gent.

Author

Blackborow, Peter.

Publication

London :: Printed for Robert Harford ...,

1678.

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Subject terms

Bond, Henry. -- Longitude found.

Longitude.

Longitude -- Tables.

Navigation -- Early works to 1800.

Link to this Item

https://name.umdl.umich.edu/A28285.0001.001 content_copy

Cite this Item

"The longitude not found, or, An answer to a treatise written by Henry Bond, Senior, shewing a way to find the longitude by the magnetical inclinatory needle wherein is proved that the longitude is not, nor cannot be found by the magnetical inclinatory needle / by Peter Blackborrow, Gent." In the digital collection Early English Books Online 2. https://name.umdl.umich.edu/A28285.0001.001. University of Michigan Library Digital Collections. Accessed May 18, 2024. content_copy

Contents

• title page
• THE PREFACE.
• THE LONGITUDE Not found by the Inclinatory Needle.
  • In Answer to Mr. Bonds first Question, in finding the Distance between London and Vaygats; and from thence to find the Di∣stance of the Magnetical Pole, from the Pole of the Earth.
  • In Answer unto Mr. Bonds Question, be∣tween Ballasore and London.
  • To Demonstrate this Sphere upon the Globe.
    • The Angle is drawn from the Sphere: the Work follows.
    • Now to find the Angle P N B.
    • The Sphere on the other side, is ac∣cording to Mr. Bonds own De∣monstration, to prove the fore∣going Work.
    • The Demonstration of this Sphere upon the Globe, is according to my former.
  • In Answer to Mr. Bond's Question, upon Cape Charles, comparing it with the new Isle of Providence in the same Meri∣dian.
    • The Demonstration of this Question upon the Globe, is the same way as in the first Question.
    • Another Observation between London and Amsterdam, comparing it with Antwerp, being in the same Meridian of Amster∣dam. See Mr. Bonds Tables of Longi∣tude 4. d. 37 m. Eastward of the Meridian of London.
  • Here follow Mr. Bonds Caroline Tables of the Complements of the Magnilatitudes to eve∣ry Five Minutes of Inclination of the In∣clinatory Needle, from the Magnequa∣tor unto 84 d 01 m. of Magnilatitude, and 87 d. 00 m. of Inclination.
  • A Table of the Latitude, Longitude, and the Inclination of the Inclinatory Mag∣netical Needle, in some of the most emi∣nent Places of the World, in 1676.
  • To prove the Earth the Centure of the Star∣ry Heaven, and not to have any Inclinati∣on towards the Poles, as Copernicus would have it.
  • Another Example from the Sun, to prove the Earth the Center of the Starry Hea∣ven.