| http://www.w3.org/ns/prov#value | - Very good Navigators they were; and though they had no knowledg of the Load-stone, or Needle or pendulous Watches, yet (which was as serviceable to them) they had subtile observations, and great practice; in so much that they could not onely tell the depth of the Sea in every place, but where there were shelves of Sand, Rocks, and other obstructions to be avoided by skilful and experienced Sea-men
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