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Calendar of State Papers Domestic: William and Mary
… made to their Majesties, a great quantity of copper ore was found in England which was totally "unimproved," and … in discovery and digging of "the chiefest mines of copper ore in several counties of England," which they have … to their best advantage; and in regard the copper ore, so purified and refined, is by the great care and …
Calendar of State Papers Domestic: William and Mary
… his invention of a way of melting down all sorts of tin ore, and making the same into merchantable tin. [ H.O. …
Calendar of State Papers Domestic: William and Mary
… part may be usefully applied for raising or drawing up of ore work and other things out of mines, and coal pits. [ H.O. … on the melting and refining of copper out of English ore, whereby great advantages will accrue to the nation. Pray …
Calendar of State Papers Domestic: William and Mary
… carrying on an undertaking to smelt down all sorts of iron ore, iron stone, "slaggs," cinders, and broken, cast, or … a freedom of exemption of paying custom for the lead ore exported by them, until lately their possessions were …
Calendar of State Papers Domestic: William and Mary
… invention of melting or smelting down all sorts of iron ore, iron stone, slaggs, cinders, old broken cast or hammered …
Calendar of State Papers Domestic: William and Mary
… merchants. Shows that there are vast quantities of copper ore in England which for want of "artists skilful" have been … speedy and easy way of melting down and refining the said ore, which was never practised before, they therefore offer … easy, and effectual melting down, and refining of copper ore. In regard therefore that the establishing of the said …
Calendar of State Papers Domestic: William and Mary
… that in Wales there are some symptoms of lead and other ore, not royal, in the several parishes of Llanelltyd, … and several others as a company to smelt down lead ore, with pit and sea coal, and to make the same into lead …
Calendar of State Papers Domestic: William and Mary
… a useful invention for melting down all sorts of tin ore, and making the same into good and merchantable tin by …
Calendar of State Papers Domestic: William and Mary
… a very useful art or invention of smelting down lead ore, with pit and sea coal, and making the same into good and …