“℞ of living gold one part, and three parts of quick mercury, not of the vulgar, but the philosophical everywhere to be found without charges or labour.” He recommends, but not as essential, the addition to the gold of an equal part of silver. “The mixture of male and female will yield a greater variety of colours, and who knoweth the power of the cordial union of gold and silver?” These metals being mixed in a philosophical vessel will be dissolved by the mercury in a quarter of an hour, acquiring a purple colour. Heating for half an hour, this will be changed to a green. The compound is to be dissolved in water of dew, the solution filtered and abstracted in a glass alembic three times until the greenness turns to a black like ink, “stinking like a carcase.” After standing for forty hours the blackness and stink will depart, leaving a milky white solution. This is to be dried to a white mass, which will change into divers colours, ultimately becoming a finer green than formerly. That green gold is to be dissolved in spirit of wine, to which it will impart a quintessence, red as blood, which is the quickening tincture, a superfluous ashy body being left. After some more distillations and abstractions a strong red solution will be obtained which is capable of being diluted with any liquid and may be kept as a panacea for the most desperate diseases. Next to “the stone” this is the best of all medicines. The author cautions his readers against the yellow or red waters sold by distillers of wine at a great price as potable gold. Further he explains that the solution of gold made with aqua regia or spirit of salt is of little or no medicinal value, because the Archeus cannot digest it, but can only separate the gold and discharge it in the excrements. In the “Secrets of Alexis” (John Wight’s translation) a recipe for a potable liquor of gold is given which “conserveth the youth and health of man, and will heal every disease that is thought incurable in the space of seven doses at the furthest.” Gold leaf, lemon juice, honey, common salt, and spirit of wine were to be frequently distilled. “The oftener it is distilled the better it be.” Kenelm Digby made a tincture of gold thus:--Gold calcined with three salts and ground with flowers of sulphur; burnt in a reverberatory furnace twelve times, and then digested with spirit of wine. Lemery gives a formula for potable gold, or tincture of gold, or diaphoretic sulphur of gold:--Dissolve any quantity of gold you like in aqua regia; evaporate to dryness, and make a paste of the residue with essence of cannella. Then digest it in spirit. He adds, sarcastically I suppose, “This tincture is a good cordial because of the essence of cannella and the spirit of wine.”