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...in chapter 18, [he] asserts that the seed of gold original: "Auri semen." This reflects the alchemical theory that metals grow within the earth from "seeds" similar to those of plants or animals. can be extracted, and in that same place he teaches the way and method of extracting it. While plants, shrubs, and trees, as well as the entire animal kingdom, can be seen everywhere to be fertile and swollen with seed, the place or the secret recesses where that prolific seed of minerals original: "Mineralium semen" lies hidden cannot be perceived in any way, even by the eyes of Lynceus In Greek mythology, Lynceus was an Argonaut famous for his supernatural vision, said to be able to see through the earth or stone. or the most keen-sighted of men. Immediately, there come to support that opinion not just one or two passages from Arnold Arnold of Villanova A renowned 13th-century Catalan physician and alchemist. or Lull Ramon Lull A Majorcan philosopher; though he likely did not practice alchemy, many influential alchemical texts were attributed to him in the centuries following his death. but the various and infinite assertions of many other most weighty Philosophers affirming that very same thing with one voice; yet [they are] initially so discordant among themselves as?