Mix two parts of salt nitre with one part of _lapis calaminaris_ and cast it in, and it will yield a sharp spirit very useful for separating of metals, and there will come over also a few yellow flores. The rest remaining behind is a dark green Mass very fiery upon the tongue, like salt of Tartar, and if it be dissolved with rain water, yieldeth a grass green solution, which being not presently coagulated into salt, the green separateth it self from the fixed salt nitre, and there falleth to the bottom a fine red powder, and if it be edulcorated and dryed, and given from one grain to ten or twelve it causeth gentle stools and easy vomits, better than prepared Antimony; for _lapis calaminaris_ and Zinck are of the nature of Gold, as in the fourth part shall be proved: the white _lixivium_ or lye, from which the green is precipitated, may be coagulated into white salt, like unto salt of Tartar; but if you coagulate the green solution, before the green be separated from the salt nitre, then you will get a very fair green salt, high in colour and much more fiery than salt of Tartar, whereby special things may be done in Alchymy, which doth not belong hither. And if you desire to make such a green salt for to use it in Alchymy, you need not take so much pains, as first to distil a spirit out of the mixture, but take three or four parts of good salt nitre, and mix it with one part of _lapis calaminaris_, and let this mixture boyl together in a wind furnace, till the salt nitre be coloured green by the _lapis calaminaris_, then pour it out and separate the green goldish salt from it, and make such good use of it as you think fit. But if you will extract a good Tincture and medicine, make it into powder, and extract it with spirit of wine, and it will yield a blood red Tincture, both in Physick and Alchymy of good use. Further you are to take notice, that among all metals and minerals, which I know (except gold and silver) there is none found, out of which can be extracted a greenness which is of fire-proof, but only out of _lapis calaminaris_, which deserves to be well considered and further thought upon. _To make a spirit of salt nitre, sulphur and common salt._ Take one part of salt, two parts of sulphur, and four parts of salt nitre, grind all together, and cast in one spoonful after another to distil, and it will yield a sharp yellow spirit, which if it be put among common water, so that the water be not made too sharp of it, it is a good bath, good for many diseases; especially it healeth all scabs very suddenly. The _Caput Mortuum_ may also be dissolved in water and used among bathes, and it is good likewise, but the spirit is penetrating, and doth operate suddenly in shrinkings and other defects of the nerves; of such kind of bathes there shall be spoken more in the third part. Also the remaining fixed yellow salt is good to be used in Alchymy; for it graduateth silver by cementing.