Its Multiplication.
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Basilius Valentinus and Cable, Daniel
The Ancient Wise, having found the Stone, and prepared it to a perfect power, and mutation of the imperfect Metals into Gold, have a long time enquired whether a thing were not to be found to augment the power of the Stone; and they found two kinds of Augmentation, one of the power of it, so that the Stone may be brought much higher; of this multiplication you will find direction in the Treatise of Gold. The other Augmentation is an augmentation of the quantity of the Stone, in its former power, so that it receives no more, nor loses any thing of its power, though it increase in weight, and augment more and more, that out of one Ounce many Ounces arise and increase.
The Augmentation or Multiplication is done as followeth; Take your Stone in Gods Name, grind it to a subtile powder, add to it as much of the Mercury of Gold, as is taught before, put them together into a fine round Vial, seal it hermetically, set it into the fiery Furnace, proceeding as you have been instructed before, only this time is shorter, for whereas before you had ten (thirty) days, now you need no more than four (ten) days, otherwise the work is one and the same.
Praise and give thanks to Almighty God for his high Revelation, continue in Prayer for his Grace and Divine Blessing in this Art and Operation, as likewise for continuance of Health and Prosperity; withal let the poor be recommended to your Help and Charity.