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On this we pour'd fair Water, which it did not Colour Green or Blew, but only seem'd to make a muddy mixture with it, then stopping the Vial wherein the Ingredients were put, we let it stand in a quiet place for some dayes, and after many hours the water having dissolv'd a good part of the imperfectly calcin'd Body, the Vitriolate Corpuscles swiming to and fro in the Liquor, had time by their opportune Occursions to constitute many little Masses of Vitriol, which gave the water they impregnated a fair Vitriolate Colour; and this Liquor being pour'd off, the remaining dirty Powder did in process of time communicate the like Colour, but not so deep, to a second parcel of cleer Water that we pour'd on it.
First, That I have often observ'd that Calcin'd Lead Colliquated with fine White Sand or Crystal, reduc'd by ignitions and subsequent extinctions in Water to a subtile Powder, will of it self be brought by a due Decoction to give a cleer Mass Colour'd like a German Amethyst.
And so we see that not only other Vegetable substances, but even White woods, as the Hazel, will yield a Black Charcoal, and afterwards Whitish ashes; And so Animal substances naturally White, as Bones and Eggshels, will grow Black upon the being Burnt, and White again when they are perfectly Calcin'd.
And I remember, that I elsewhere told you, that Vitriol Calcin'd with a very gentle heat, and afterwards with higher and higher degrees of it, may be made to pass through several Colours before it descends to a Dark Purplish Colour, whereto a strong fire is wont at length to reduce it.
For in the making of these, though pure Sand or Calcin'd Crystal give the Body, yet 'tis for the most part some Metalline or Mineral Calx, mingled in a small proportion that gives the Colour.
Also you have here a Muse calcin'd, a little of the Powder of which given to a Woman big with Child, if it be a Boy it will be a Poet, if a Girl she'll be a Whore, if an Hermaphrodite it will be Lunatick.
Strange things, they tell us, have been done with this calcin'd Womb of Imagination; if the Body it came from was a Lyrick Poet, the Child will be a Beau, or a Beauty; if an Heroick Poet, he will be a Bulley; if his Talent was Satyr, he'll be a Philosopher.
My Child shall take 10, 12, or 15 pound of Saturn, wherein is no mixture of any other Metal; laminate it thin, have in readiness a great Stone Jugg, half full of Vinegar, stop the Jugg very close, set it in a Lukewarm Bath, every three or four days scrape off the calcin'd Saturn from the Plates, and reserve it apart, thus do so long till you have 5 or 6 l. of the calcin'd Saturn, then grind it very well on a Stone with good distilled Wine-Vinegar, so as you may paint therewith, then take two or three great Stone-pots, therein put the Calx of Saturn which you ground, poure good distilled Wine-Vinegar upon it, that two parts of the Pot be full, stir it well together, stop the Pot close with a polished Glass or Pebble-stone, set the Pots in a Bath, stir it four or five times in a day with a wooden Ladle, lay the Glass or Stone Stopple again over it, make the Bath no hotter than that you may well endure your hand therein, that is, lukewarm; so let it stand fourteen days and nights, then decant that which is clear into another Stone-pot, poure other distilled Vinegar upon the Calx which is not well dissolved, mix them well together, set it 14 days in the Bath, again decant it, and poure other Vinegar upon it as before.
So much do these two Colours depend upon the Disposition of the little parts, that the Bodies wherein they are to be met with do consist of. And we find, that if Whitewine Tartar, or even the white Crystalls of such Tartar be burnt without being truly Calcin'd, the Cap.
When the Materials of Glass being melted with Calcin'd Tin, have compos'd a Mass Undiaphanous and White, this White Amel is as it were the Basis of all those fine Concretes that Goldsmiths and several Artificers imploy in the curious Art of Enamelling.
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