There are three methods of making the multiplication; the first is to take a part of the perfect red elixir and mix it with nine parts of its red water; place the flask in the bath to make it all dissolve in water; after the solution, cook this water until it coagulates into a substance resembling a ruby; incerate this to the matter of the elixir and by this first operation the medicine acquires ten times more virtue than it had before, reiterate this same process a second time and it will augment to one hundred; a third time, a thousand, and so on always increasing tenfold.
The second method is to mix the desired quantity of the elixir with its water, always being careful of the proportions of one and the other, and after having placed it in a vessel closely sealed, dissolve it in the bath and follow the regimen of the second, successively distilling the elements by their proper fires until all- becomes stone; then incerate, as in the other case, and the virtue of the elixir will augment one hundred-fold the first time, but this way is too long, reiterate as in the first to increase its force more and more.
The third method is the multiplication in quantity; project one ounce of the elixir multiplied in quality upon one hundred ounces of purified common mercury; this mercury placed upon a small fire will be quickly changed into elixir. If you throw one ounce of this new elixir upon one hundred ounces of other common mercury; this mercury placed upon a small fire will be quickly changed into elixir. If you throw one ounce of this new elixir upon one hundred ounces of other common mercury purified, it will- become most fine gold; the multiplication of the white elixir is made in the same manner, taking the white elixir and its water instead of the red elixir; the more you reiterate the multiplication in quality, the greater effect it will have in projection, but not by the third method of which I have spoken, because the force diminishes at each projection upon the common mercury; one cannot therefore push this reiteration beyond the fourth or fifth time, because thereby the medicine would become so active and so fiery that the operation would take place instantly; the duration shortens at each reiteration; consequently its virtue is sufficiently great at the fourth or fifth time to satisfy the desires of the artist, because out of the first, one grain can convert one hundred grains of mercury into gold, at the fourth, one hundred thousand, etc. One must judge that this medicine is like the seed of wheat which multiplies each time it is sown.
It should be observed that what is called red water is the red powder; which the first operation has produced; and that the perfect elixir or red soul is the red powder produced in the second operation; this must be understood in the same way for the white.
“Light Out Of Chaos” by Louis Grassot, 1784
When you have finished the stone, dissolve it in our mercury again, wherein you have previously dissolved a few grains of pure gold. This operation is done without trouble, both substances readily liquefying. Put it into your vessel, as before, and go through the process. There is no danger in the management, but breaking your vessel; and every time it is thus treated its virtues are increased, in a ratio of ten to one hundred, a thousand, ten thousand, etc., both in medicinal and transmuting qualities; so that a small quantity may suffice for the purposes of an artist during the remaining term of his life.
“On The Philosopher’s Stone”
The fourth thing which you ought to consider, is the greatest Secret of all and mighty Wisdom, that is, that you know how to fortify your Medicine and multiply his Virtue, and this is a work of great Prudence and Wisdom, and if you understand this last, one part of your Medicine will not only convert ten parts of any Body melted but a hundred, a thousand, ten thousand, ten thousand thousand, and much more without end, according to the several Circulations you shall make.
“Speculum Alchymiae” by Bacon, 1250