_Whether Minerals, as Antimony, Arsenic, Orpin, Cobolt, Zinc, Sulphur, =&c.= may be transmuted into metals, and into what?_ It is long since debated among Chymists, whether the aforesaid Minerals proceed from the same principles with Metals, and whether to be counted Metals; in which Controversy they have not agreed to this day, when as one approves that which another denies, so that a student of Chymistry knows not to what side he had best assent. But this knowledge not a little helping, concerning the purifying of metals, I would put my opinion also grounded upon experience, for the satisfying the doubtful, the simplicity of them is strange who hold not one and the same beginning to be of minerals and metals, saying, if metals might be made by nature, of minerals surely it had long since been done; but it never was, experience witnessing; for remaining minerals, they are never transplanted into metals. I Answer, metals grow one way, also vegetables another, soon budding, and again soon dying; but it is not so with metals; for all lasting things have long time of digestion, according to the saying, _That which is soon made, doth soon fade_; this is to be understood not only of vegetables and minerals, but also of animals, as appears from the budding of some vegetables, coming in six Months space to their perfection, and then again perishing: when as things requiring longer time of digestion and perfection are much more lasting. A Mushroom in the space of one or two nights grows out of rotten wood, again soon vanishing: not so the Oke. Oxen, and Horses in the space of two or three year come to perfection, scarce living the twentyeth, or twenty-fourth year: but a Man requiring twenty four years to his perfection, lives sixty, eighty, or an hundred years. So also we must conceive of lasting metals requiring many ages, and also very long time of digestion and perfection; metals therefore requiring a very long time of digestion to their perfection, it is granted to no man ever to see the beginning, and end of them; the transplantation of minerals into metals by nature cannot be denyed; especially, because that in the oars of metals, especially of course ones, minerals are also found; wherefore diggers of minerals, when they find them, conceive good hopes of finding metals, of which they are termed the _Coverlids_, for seldom metals are found without minerals, or minerals without metals; nor also are ever minerals found wanting gold or silver; therefore minerals are properly termed the _Embryo_ of _Metals_; because by art and fire a good part of gold and silver is drawn out of them by fusion; which if they do not proceed from the metallick roots, whence proceeds that gold and silver? For an Ox is not born of an Infant, nor a man of a Calf; for alwaies like is produced of its like.