ounces and a half of very good Butter of Antimony, three ounces and six drachms of Cinnabar of An∣timony, and half an ounce of Quick-silver.
The mass which remains in the Retort, does weigh two ounces and a half.
Thus the matter has lost six drachms, which loss happened, whilst the Cinnabar was rising.
The Quick-silver is found in the neck of the re∣tort with the Cinnabar, and in the last receiver.
Sometimes a kind of mossey substance is found at the end of the neck of the retort, which does represent many little figures; it is the more rare∣fied Cinnabar.
The mass which is found at bottom of the re∣tort is the more terrestrious part of the Antimony, and is to be flung away.
In the preceding operation the Mercury did not find sulphurs enough to adhere to, whence it hap∣ned that it came forth flowing; but in this ope∣ration wherein crude Antimony is used, which hath all its sulphur, whilst the Corrosive spirits sticking to the Antimony come forth in Butter, the Mercury joyns with the sulphur, and by the action of fire sublimes afterwards into Cinnabar in the neck of the retort; for to make Cinnabar, Sul∣phur and Mercury must be sublimed together. Now if you have the curiosity to anatomise Cinnabar, you must powder it, and mix it with a double quan∣tity of Salt of Tartar; then putting it into a Re∣tort, distil with a great fire the Mercury into a Receiver filled with water, the Sulphur will remain in the Retort with the Salt of Tartar, but may be separated from it by boiling it in water. Fil∣trate the Decoction, and then pour upon it distilled