In this manner the hardest things also, as stones and metals, may be joyned or united with water, whereof more in my other books are extant; it is needless here therefore to relate. I gave a hint of it, only for to shew, that always like with like must be extracted. True it is that one Contrary can mortifie another, and take the corrosiveness from it, whereby the pains for a time are asswaged, but whether the cause of the disease it self be eradicated thereby, is a question. Here may be objected, that I make a difference between the sulphureous and Mercurial salts, whereas neither Mercury nor sulphur apparently is to be seen in either. It is true, he that doth not understand nor know the nature of salts, is not able to apprehend it. And I have not time now to demonstrate it, but the same is shewed at large in my book _de Natura salium_, that some of them are sulphureous, and some Mercurial: but he that looks for a further direction yet, let him read my book _de Sympathia & Antipathia rerum_, wherein he shall find it demonstrated that from the Creation of the World to the time present, there were always two contrary natures fighting one against the other, which fight will continue so long till the Mediator betwixt God and Man, the Lord Jesus Christ shall put an end unto this strife, when he shall come to separate the good from the bad, by whose lightning and fire flame the proud and hurtful superfluous sulphur shall be kindled and consumed: the pure Mercurial being left in the center. _How to make pretious spirits and oyls out of Tartar joined with minerals and metals._ Take any metal or mineral, dissolve it in a fit menstruum, mix it with a due proportion of crude Tartar, so that the crude Tartar being made into powder together with the solution make up a pap as it were; then at once cast in one spoonful of it, and distil it into a spirit and oyl, which after the distillation must be separated by rectification, for to keep each by its self for its proper use. _The use of the metallized spirit and oyl of Tartar._