Books by Thomas Kirby:
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Kirby, Thomas, teacher of the mathematics and nautical astronomy: The Improved Practical Navigator: Containing All Necessary Instruction for Determining the Latitude by Various Methods, and for the Ascertaining the Longitude by Lunar Observations, in a Complete Epitome of Navigation (revised by Kirby from Bowditch's text; London: Printed for J. and J. Hardy and D. Steel, 1802), also by Nathaniel Bowditch (page images at HathiTrust)
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