XXXII THE ROYAL SOCIETY OF CANADA 



18. — Note on the Spreading of Oils on Water. By R. S. Jane. 

 Presented by E. H. Archibald, F.R.S.C. 



19. — The Hydrolytic Decomposition of Potassium Bromo- 

 platinate. By E. H. Archibald, F.R.S.C, and W. A. Gale. 



20. — On the Excitation of Characteristic X-ray, from Light 

 Elements. By Prof. J. C. McLennan, Toronto, and Miss M, L. 

 Clark, B.A. 



21.- — On the Liquefaction of Hydrogen and of Helium. (Second 

 Communication). By Prof. J. C. McLennan, F.R.S.C, and Mr. G. 

 M. Shrum, M.A. 



22.— On the Structure of the Wave length X = 6708 A.U. of the 

 Isotopes of Lithium. By Prof. J. C McLennan, F.R.S.C, and 

 Mr. D. S. Ainslie, M.A. 



23.— On the Absorption of the Wave length X = 5461 Â.U. and of 

 its satellites by ionised mercury vapour. By Prof. J. C McLennan, 

 F.R.S.C, and Mr. D. S. Ainslie, M.A., and Miss F. M. Cale, B.A. 



24. — On the Prism Method of Determining the Refractive 

 Indices of Metallic Vapours. By Mr. H. Grayson Smith, B.A. 

 Presented by Prof. J. C McLennan, F.R.S.C. 



25. — On the Photography of Infra Red Spectra. By Mr. V. P. 

 Lubovich, and Miss E. M. Pearen, B.A. Presented by Prof. J. C 

 McLennan, F.R.S.C. 



26. — On the Application of the Theory of Magnetism to the 

 Calculation of Atomic Diameters. By Mr. J. F. T. Young, M.A. 

 Presented by Prof. J. C McLennan, F.R.S.C. 



27. — The Destruction by Ultraviolet Light of the Fluorescing 

 Power of Dilute Solutions of Aesculin. By Miss F. M. Cale, B.A. 

 Presented by Prof. J. C McLennan, F.R.S.C. 



28. — On the Photoelectric Conductivity of Diamond and other 

 Phosphorescent Crystals. By Miss M. Levi, B.A. Presented by 

 Prof. J. C McLennan, F.R.S.C 



29. — On the Absorption Spectrum of Argon. By W. W. Shaver, 

 M.A. Presented by Prof. J. C McLennan, F.R.S.C. 



30. — On the Low Voltage Arc Spectrum of Argon. By W. W. 

 Shaver, M.A. Presented by Prof. J. C McLennan, F.R.S.C. 



31. — Asymptotic Planetoids. By Daniel Buchanan, F.R.S.C. 



32. — On Surface Tension. By John Satterly, F.R.S.C. 



33. — The Crooke's Radiometer as a Measuring Instrument. By 

 John Satterly, F.R.S.C. 



34. — Light Scattering by Dust-free Liquids. By W. H. Martin, 

 M.A. Presented by Prof. F. B. Kenrick, F.R.S.C. 



