Ornament Details
065400020000260_0
tailpiece
The longitude at sea, not to be found by firing guns, nor by the Most Curious Spring-Clocks or Watches. But the only true method for discovering that valuable secret by the sun, moon or stars, and an Exact Time-Keeper, with such Necessary Improvements, as have not yet been Describ'd by any other Person; and (with respect to the Term of any Ordinary Voyage) may properly be call'd a Perpetual Motion. Now Humbly Proposed, To the Consideration of the Publick, by Case Billingsley.
printed for Richard Mount, and Company, on Tower-Hill, and John Morphew, near Stationers-Hall
26
486
2017
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