In regard of the former, take of the phlegme of _Aqua vitæ_, and do upon all the same just that which you did with the distilled vineger upon the rust, it will dissolve more then the halfe: withdraw your phlegm by a light distillation, and upon the gum that shall rest congealed, cast fine _Aqua vitæ_, stirring it strongly with a baston upon warme ashes, but you must not warme it so much as the vineger and the phlegme, and when the _aqua vitæ_ shall be well charged of its dissolution, retire it by a slow distillation in _Balneo Marie_, in a limbeck; for it will serve you againe as before: and if that be very proper for the dysenteries, and fluxes of the belly, with exulcerations and gangrens with small shot; as also is the second Crocum drawne by the phlegme, of very great efficacy: and the third yet of more, drawne by _Aqua vitæ_, which will remain in yellow powder the true essence of iron, which we have searched even to the Center. But in all dissolutions take heed to leave them well in repose, and not to receive but the clear, pure, and neat, without any feces or residences; rather put them for an hour in a warm bath to clarifie them. The vineger that remains, and the phlegm, you may filter, but not the _aqua vitæ_, because of its unctuosity: which makes it difficult to separate it, from its residences; we must therefore attend till it be cleare. Behold these three earths, and the three dissolvants proceeding one and the other from the vegetable, that is to say, wine, the most excellent substance of all the vegetables which the Philosopher _Calisthenes_ called the blood of the earth. Now for the affinity that is betwixt iron and copper, we will here pursue in one traine some experiments proceeding from the said copper. Take (to shorten as much as may be) of the stone of _Azur_, which is a minerall of copper, which will render you more then twelve ounces neat and liquid for a pound.