48 SECTIONAL ADDRESSES 
62. W. Kuun, Trans. Favaday Soc., 1930, 26, 293. 
63. Born, Phys. Zeit., 1915, 16, 251 ; Ann. Physik, 1918, [iv], 55, 177. 
64. Lowry and Waker, Nature, 1924, 118, 565. Lowry, Nature, 1933, 181, 
565. 
65. DE MALLEMANN, Rev. Gen. Sci., 1927, 38, 453; Tvans. Faraday Soc., 1930, 
26, 281. 
66. ——C.R., 1925, 181, 208. 
67. S. F. Boys, Proc. Roy. Soc., 1934, A, 144, 655. 
68. W. Kuun, Ber., 1933, 66, 166 ; Z. physikal. Chem., 1934, B. 24, 335. 
