Rare Boow LONGITUDE.
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Naylor, Samuel.
Dunn's linear tables described and their utility verified: with precepts and examples, for shortening calculations and preserving ac- curacy in the lunar method of finding longitude at sea. First introduced into the United States in 1798, by Samuel Naylor, and by him recommended ++. as the most simple and easy method of clear- ing lunar distances of the effects of refraction and parallax, of any yet taught, Margett's ex- cepted. Published according to act of Congress.
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