Although Eugenius Philalethes disclaimed membership in the Rosicrucian Fraternity, it is believed that for a number of years he was the head of that Order. In a little work called Lumen de Lumine, or A New Magical Light Discovered and Communicated to the World, published in London in 1651, Eugenius Philalethes gives a remarkable letter, presumably from the Rosicrucian Order. Accompanying the letter is an emblematic figure setting forth in symbolic form the processes and formulæ of the Philosopher's Stone. This epistle is an excellent example of the Rosicrucian system of combining abstract theological speculations with concrete chemical formulæ. With the aid of the material contained in various parts of this present book the student would do well to set himself the task of solving the riddle contained in this hieroglyph.

The legend concerning the origin of the order—true in some respects, but erroneous in others—was as follows: That a certain Christian Rosenkreutz, a...