intuitive. I discarded the idea with regard to that word, but the general speculation remained with me, and I recurred to it again and again, and began brooding upon the significance of separate letters, and had related many letters to abstractions or elements, when once again, seemingly by chance, I took down a book from a shelf. It was a volume of the Upanishads, and it opened at a page where my eye caught this: "From that Self came the air, from air fire, from fire water, from water earth." I quote from a distant memory but the words are, I think, close enough. What excited me was that I had already discovered what I thought were the sound equivalents for the self, motion, fire, water and earth; and the order of the cosmic evolution of the elements suggested in the passage quoted led me to consider whether there was any intellectual sequence in the human sound equivalents of elements and ideas. I then began to rearrange the roots of speech in their natural order from throat sounds, through dental to labials, from A which begins to be recognisable in the throat to M in the utterance of which the lips are closed. An intellectual sequence of ideas became apparent. This encouraged me to