CONTENTS— continued. 



PAGE 



XIX.— Preliminary Note on the Action of the Radiations from Radium 

 Bromide on some Organisms. By H retry H. Dixon, D.Sc., 

 Assistant to the Professor of Botany, University of Dublin ; 

 and J. T. Wigham, M.D., Assistant to the Lecturer in 

 Pathology in Trinity College, Dublin. (Plates XVI.- 

 XVIII.), 178 



XX. — An Experiment on the Possible Effect of High Pressure on the 

 Radio-activity of Radium. By W. E. Wilson, D.Sc, 

 F.R.S., 193 



XXL— On the Reactivity of the Alkyl Iodides. By F. G. Donnan, 



M.A., Ph.D., 195 



XXII. — On the Structure of Water-jets, and the effect of Sound thereon. 

 By Philip E. Belas, Science Scholar, Department of Agri- 

 culture and Technical Instruction for Ireland, Royal College 

 of Science, Dublin. (Plates XIX.-XXIL), . . .203 



XXIII. — Remarks on the Cases of Carbon-monoxide Asphyxiation that 

 have occurred in Dublin since the addition of Carburetted 

 Water-gas to the Ordinary Coal-gas. By E. J. McWeeney, 

 M.A., M.D., D.P.H., M.R.I.A., Professor of Pathology at 

 the Catholic University Medical School ; Pathologist to the 

 Mater Misericordise Hospital, Dublin, .... 217 



XXIV. — Photographs of Spark-Spectra from the Large Rowland Spec- 

 trometer in the Royal University of Ireland. Part III. : 

 The Ultra-violet Spark-spectra of Platinum and Chromium. 

 By W. E. Adeney, D.Sc, A.R.C.Sc.L, Curator and 

 Examiner in Chemistry in the Royal University of Ireland, 235 



XXV. — The Pre-glacial Raised Beach of the South Coast of Ireland. 

 By W. B. Wright, B.A., and H. B. Mtjee, B.A., F.G.S. 

 (Plates XXIIL-XXXL), 250 



XXVI. — Vapour-pressure Apparatus. By James J. Hutchinson, . 325 



XXVII. — Formation of Sand-ripples. By J. Joiy, B.A.I., D.Sc, F.R.S., 

 F.G.S., Professor of Geology and Mineralogy in the Uni- 

 versity of Dublin, ........ 328 



XXVIII. — On a Method in Qualitative Analysis for Determining the 

 presence of certain Metallic Oxides. By Charles R. C. 

 Tichborne, F.I.C., Dip. P.H., F.C.S., etc., . . .331 



