Philosophical Transactions, Volume 3…
“ And indeed Nature hath so prodigally enriched this Country with all sorts of Minerals, both perfect, imperfect and mixt that the almost overwhelms the Observation of the most diligent and most curious Naturalists, I have dealt with the skilfullest Minemen in those parts, but I found them to know of, and care for little in the matter of Minerals, but Gold and Silver. ”
