symbols, for it long seemed to me that one could account for everything by the power of one imagination over another, telepathy as it is called with that separation of knowledge and life, of word and emotion, which is the sterility of scientific speech. The symbol seemed powerful, I thought, merely because we thought it powerful, and we would do just as well without it. In those days I used symbols made with some ingenuity instead of merely imagining them. I used to give them to the person I was experimenting with, and tell him to hold them to his forehead without looking at them; and sometimes I made a mistake. I learned from these mistakes that if I did not myself imagine the symbol, in which case he would have a mixed vision, it was the symbol I gave by mistake that produced the vision. Then I met with a seer who could say to me, 'I have a vision of a square pond, but I can see your thought, and you expect me to see an oblong pond,' or, 'The symbol you are imagining has made me see a woman holding a crystal, but it was a moonlight sea I should have seen.' I discovered that the symbol hardly ever failed to call up its typical scene, its typical event, its typical person, but that I could practically never call up, no matter how vividly I imagined it, the particular scene, the particular event, the particular person I had in my own mind, and that when I could, the two visions rose side by side. I cannot now think symbols less than the greatest of all powers whether they are used consciously by the masters of magic, or half unconsciously by their successors, the poet, the musician and the artist. At first I tried to distinguish between symbols and symbols, between what I called inherent symbols and arbitrary symbols, but the distinction has come to mean little or nothing. Whether their power has arisen out of themselves, or whether it has an arbitrary origin, matters little, for they act, as I believe, because the great memory associates them with certain events and moods and persons. Whatever the passions of man have gathered about, becomes a symbol in the great memory, and in the hands of him who has the secret, it is a worker of wonders, a caller-up of angels or of devils. The symbols are of all kinds, for everything in heaven or earth has its association, momentous or trivial, in the great memory, and one never knows what forgotten events may have plunged it, like the toadstool and the ragweed, into the great passions. Knowledgeable men and women in Ireland sometimes distinguish between the simples that work cures by some medical property in the herb, and those that do their work by magic. Such magical simples as the husk of the flax, water out of the fork of an elm-tree, do their work, as I think, by awaking in the depths of the mind where it mingles with the great mind, and is enlarged by the great memory, some curative energy, some hypnotic command. They are not what we call