Signum autem eius est, quod videmus

Signum autem eius est, quod videmus in arte alchimiae fieri quae inter omnes alias artes maxime naturam imitatur, quare omnibus sapientibus notifico, quod de nulla re in mundo, nec ullo modo est possibile fieri melius citrinum elixir, quam per sulphur philosophicum.

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And the sign of this is that we see it being done in the art of alchemy, which among all other arts imitates nature the most; therefore I declare to all the wise that for no matter in the world, nor in any way possible, can a better lemon elixir be made than by means of philosophical sulphur.