J O U R N A LTHE CHEMICAL SOCIETY.TRANSACTIONS.HORACE T. BROWN, LL.D., F.R.S.J. N. COLLIE, Ph.D., F.R.S.A. W. CROSSLEY, D.Sc., Ph.D., F.R.S.BERNARD DYER, D.Sc.M. 0. FORSTER, D.Sc., Ph.D., F.R.S.P. F. FRANKLAND, Ph.D., LL.D.,C. E. GROVES, F.R.S.F. R. S.J. T. HEWITT, M.A., D.Sc., Ph.D.,F. R. S.A. MCKENZIE, M.A., D.Sc., Ph.D.G. T. MORGAN, D.Sc.J. C. PHILIP, D.Sc., Ph.D.Sir WILLIAM RAMSAY, K.C. B., LL.D.A. SCOTT, M.A., D.Sc., F.R.S.F. R. S.dM.m:J. C. CAIN, D.Sc., Ph.D.SnlT-Qbitm :4. J. GRBENAWAY.1911. Vol. XCIX. Part 11.LONDON:GURNEY Q JACKSON, 10, PATERNOSTER ROW1911RICHARD CLAP & SONS, LIYITED,BRUNBWICK STREET, STAMTORD GTRERT, S.E,AND BUNGAY, SUFFOLK