What I pray is in less esteem in the world, than old Iron and Lead, which are acceptable to the wise to use in the Lotion of Copper and Tin with the mineral White? But how they are to be washed, is a difficulty to the unexercised in the fire, and shall be delivered by similitudes: You see Antimony fresh digged out of the earth, very black and impure; which by fusion separated from its superfluity (which, though nature gave to it not in vain, but as an help to its purification, according to that: _GOD and Nature do nothing in vain_) is made more pure, and endowed with a body nearer to metals than its mineral, which if afterwards melted with salt of Tartar, the crude and combustible sulphur is mortified thereby, and is turned into dross, and separated from the pure mercurial part, so that hereby is made a new and fresh separation of the parts, of which one portion being white and brittle, sinks to the bottom, the other lighter, to wit, the combustible sulphur is on the top with the salt of Tartar; which poured out into a Cone, when they are cold, may be separated with the hammer; the inferior part of which is called by the Chymists _Regulus_, which is purer than Antimony cast the first time out of its mineral; and this is the usual purging of Antimony used by Chymists; to which (_Regulus_) if afterward any thing should be added, for a third purification, without doubt it would not only be made purer but more fixt and malleable. For if white Regulus be preparable out of black Antimony, why not as well malleable metal out of the _Regulus_. _Another way of separating the superfluous Antimonial Sulphur_, ℞ Antimony powdred one part, Salt-peter half as much, mingle them, and kindle the mixture with a live coal, and let that Antimonial sulphur, with the nitre be burnt up, the darkish mass being left, to wit, of a brown colour; which melted for the space of an hour in a strong fire yeilds an Antimony like to that which is made with salt of Tartar, but somewhat less in quantity: in like manner the parts of Antimony are separated, _viz._ if Antimony, Nitre, and crude Tartar be mingled in an equal weight, and being mixt are kindled and melted. There is also another separation of the Antimonial parts; when of small bits of Iron one part is pat into a strong crucible, in a wind Furnace, to which being red hot, cast two parts of ground Antimony, for fusion, and the superfluous combustible sulphur will forsake the Antimony, and joyn to the Iron, a metal more amicable to it; mixt with which, it forsaketh its own proper pure Mercury, and sulphur or _Regulus_, which is almost the half part of the Antimony.