ABSTRACT
Although the Alchemists have written diffusely on the Manual Practice, and delivered many Keys, whereby, as they say, we may enter into the sanctuary of philosophy and open her interior recesses; yet the first way of approach and shut entrance to these has not been unfolded, nor would it be possible, we think, for anyone to discover the Practice from their books alone. For although it is called a play of children, and represented as a very trivial, slight, almost a ridiculous thing, one linear decoction throughout and dissolution by line, yet neither instinct nor reason would probably suggest, without instruction, the tractive artifice now made publicly easy of entrancing the senses in their own medial light.
