15. Angell, Norman, "Dangers of Half-Preparedness," G. P. Putnam's Sons, New York, 1916. 16. Angell, Norman, "Arms and Industry," G. P. Putnam's Sans, New York, 1914. 17. Angell, Norman, "Great Illusion," G. P. Putnam's Sons, New Yark, 1913. 18. H. Maxim, "Defenseless America," Hearst's Int. Lib., 1915.
B. Articles. 1. Journal nf Industrid and Engineering Chemistry, 11, 3, 13, 575, 673, 921, 1060 (1919); 17,222,662,772,773,882,884,995,997 (1925). 2. Chnnicol and Metallurgical Engineering, 20, 152, 335 (1918). 3. Chemical Age (New York), 32, 191 (1924). 4. Journnl of the Society of Chemical Industry, 34, 53,307, 474 (1915). 5. Science, N. S., 48, 495 (1918). 6. Scientific American. 119, 228, 336 (1918); 120, 518 (1919); 133, 175 (1925). 7. Scientific Monthly, 7, 356 (1918). 8. Literary Digest, 83, 25 (Nov. 15, 1924). 9. Current Opinion, 59, 77 (1915). 10. Current History, 21, 433 (1924r25). 11. Harper's Magazine, 139, 828 (1919). 12. Atlantic Monthly, 122, 265 (1918). 13. Y a k R&w, N. S., 7,493 (1917-18). 14. Wall Streel Journal, 25, 554 (1920). 15. hTmYork Emening Post, Oet. 4, 1924, p. 13.
Gold Changed to Mercury by German Physicist. A reversal of the dream of the ancient alchemists, the transmutation of gold into a less valuable metal, mercury, is claimed by Dr. A. Gaschler, an associate of Prof. A. Miethe, who in 1924 announced that he had succeeded in turning mercury into gold. Dr. Gaschler's process consisted in sealing a gold electrode into a vacuum tube and bombarding it with a stream of positive hydrogen atoms. shot through the tube a t high velocity. The resulting color display Dr. Gaschler watched through a spectroscope. At first the only light given off was of the color characteristic of glowing hydrogen, but a t the end of thirty hours of bombardment the spectrum lines that indicate the presence ofmercury appeared and became stronger as time elapsed. The experimenter states that an oil pump was used t o produce the vacuum, and that every other precaution was taken t o prevent the contamination of either the gold electrode or the hydrogen gas with mercury. He is confident that he has actually produced mercury from gold. Dr. Gaschler calls attention to the similarity of his work t o that of a British Physicist, J. J. Manley, who succeeded in inducing helium t o form a chemxal union with mercury by bombarding mercury with a stream of helium atoms. Helium had long been known as one of the most inert of the elements, never forming compounds with any of the others. He is of the opinion that if his results are confirmed upon further repetitions and refinements, they will lend support t o Dr. Miethe and Dr. Hantaro Nagaoka, whose claims that they changed mercury into gold have been subjected lately to skeptical criticism.-Science Service
