Dickenson, Edmund
An Encyclopaedia of Occultism (1920)
Dr. Edmund Dickenson, physician to King Charles the Second, a professed seeker of the hermetic knowledge, produced a book entitled, De Quinta Essentia Philosophorum; which was printed at Oxford in 1686, and a second time in 1705. A third edition of it was printed in Germany in 1721. In correspondence with a French adept, the latter explains the reasons why the Brothers of the Rosy Cross concealed themselves. As to the universal medicine, Elixir Vitae, or potable form of the preternatural menstruum, he positively asserts that it is in the hands of the "Illuminated," but that, by the time they discover it, they have ceased to desire its uses, being far above them: and as to life for centuries, being wishful for other things, they decline availing themselves of it. He adds that the adepts are obliged to conceal themselves for the sake of safety, because they would be abandoned in the consolations of the intercourse of this world (if they were not, indeed, exposed to worse risks), supposing that their gifts were proven to the conviction of the bystanders as more than human, when they would become simply abhorrent. Thus, there are excellent reasons for the its conduct; they proceed with the utmost caution, and instead of making a display of their powers, as vain-glory is the least distinguishing characteristic of these great men, they studiously evade the idea that they have any extraordinary or separate knowledge. They live simply as mere spectators in the world, and they desire to make no disciples, converts nor confidants. They submit to the obligations of life, and to relationships-enjoying the fellowship of none, admiring none, following none, but themselves. They obey all codes, are excellent citizens, and only preserve silence in regard to their own private beliefs, giving the world the benefit of their acquirements up to a certain point; seeking only sympathy Divination at some angles of their multiform character, but shutting
What Has Changed in the Last Century
The bare facts Spence gives in 1920 still stand: Edmund Dickinson (usually spelled Dickinson, 1624–1707) really was physician to Charles II, really published De Quinta Essentia Philosophorum at Oxford in 1686, and really corresponded with a self-described French adept about the secrets of the Rosicrucians. What has moved is the frame. The Encyclopaedia of Occultism reports the adept's claims about the Elixir Vitae and the hidden "Illuminated" without demur, whereas historians since the 1970s — working on the alchemical manuscripts of Robert Boyle and Isaac Newton — read such letters as documents in the history of chemistry and of learned secrecy, not as evidence that anyone possessed a universal medicine. Dickinson is now of interest chiefly as one more Restoration physician who kept a furnace going, in an age when the line between chymistry and alchemy had not yet been drawn.
Written for this edition, 2026.