Therefore the deceit of the Distillers of Wine, and other vegetable waters, selling potable gold, is not unknown, being not ashamed to sell any water coloured yellow or red to the ignorant for a great price. And the errour of others dissolving the body of gold in _Aqua Regia_, or spirit of salt, which again they abstract to a dry remainder, to which for extraction they affuse the spirit of wine: Which is not an extraction, but some particular solution of gold, made by help of the corrosive spirits left in the gold, tinging the spirit of wine with a yellow colour, which so coloured, they call their potable gold; which notwithstanding is reduced into gold, the spirit of wine being abstracted, which can do no more than any other Calx of gold, which the _Archeus_ cannot digest, but separates, being indigested, with the Excrements. And also it is the errour of others, ignorantly deceiving themselves and others, extracting the Calx of gold with peculiar _menstruums_ and spirits, knowing not that the _menstruum_ affused to gold to be red of it self by a long digestion, which decanted, they administer instead of potable gold, who if they weighed the remaining Calx, would by experience see that nothing departed from the gold; which you may try by the setting the spirit or _menstruum_ in a remiss heat, or longer in cold, which of it self doth wax red, as if it had been affused to the Calx of _Sol_. But the cause of this redness is (unknown to them) nothing but a certain nitrous salt and volatile, as of Antimony, Urine, Tartar, Hartshorn, Hair, _&c._ exalting the colour of any Sulphur. Wherefore it necessarily follows, if _Artists_ mingle with the spirit of wine in which is a sulphur, such exalting salts, that it will thence be exalted in colour, and wax red; which also happens to them, who use to extract a tincture with distilled Oyls, having a volatile salt, as are oyl of Lemmons, Cloves, Soot, _&c._ For such-like tincture or potable gold is inefficacious, as experience witnesseth. But I would not say there is no other tincture to be prepared out of gold, beside this tincture: for being dissolved in sweet _menstruums_, that it cannot be separated by precipitation, it can do wonderful things in many grievous Diseases; but alwaies the living metal is to be chosen instead of the dead.