I discovered that many talented men are still firm believers in the lost art of alchemy, and that among the followers of the "thrice-famed Hermes" are to be found statesmen, clergymen, lawyers, and scientific men who, for various reasons, invariably conceal with great tact their connection with the fraternity of adepts. Some of these men had written scientific treatises of a very different character from those circulating among the members of our brotherhood, and to their materialistic readers it would seem scarcely possible that the authors could be tainted with hallucinations of any description, while others, conspicuous leaders in the church, were seemingly beyond occult temptation. The larger number, it was evident, hoped by studies of the works of the alchemists, to find the key to the alkahest of Van Helmont, that is, to discover the Philosopher's Stone, or the Elixir of Life, and from their writings it is plain that the inner consciousness of thoughtful and scientific men rebelled against confinement to the narrow bounds of materialistic science, within which they were forced to appear as dogmatic pessimists. To them scientific orthodoxy, acting as a weight, prohibited intellectual speculation, as rank heresy. A few of my co-laborers were expert manipulators, and worked experimentally, following in their laboratories the suggestions of those gifted students who had pored over precious old manuscripts, and had attempted to solve the enigmatical formulas recorded therein, puzzles familiar to students of Hermetic lore. It was thus demonstrated,--for what I have related is history,--that in this nineteenth century there exists a fraternity, the members of which are as earnest in their belief in the truth of Esoteric philosophy, as were the followers of Hermes himself; savants who, in secret, circulate among themselves a literature that the materialism of this selfsame nineteenth century has relegated to the deluded and murky periods that produced it. One day a postal package came to my address, this being the manner in which some of our literature circulated, which, on examination, I found to be a letter of instruction and advice from some unknown member of our circle. I was already becoming disheartened over the mental confusion into which my studies were leading me, and the contents of the letter, in which I was greatly interested, made a lasting impression upon me. It seemed to have been circulating a long time among our members in Europe and America, for it bore numerous marginal notes of various dates, but each and every one of its readers had for one reason or another declined the task therein suggested. From the substance of the paper, which, written exquisitely, yet partook of the ambiguous alchemistic style, it was evident that the author was well versed in alchemy, and, in order that my position may be clearly understood at this turning point in a life of remarkable adventure, the letter is appended in full: