XXX ROYAL SOCIETY OF CANADA 
Dominion Survey of Tides and Currents during the last sixteen years, 
with the object of explaining the general methods adopted in this new 
field of investigation. An appended list gave references to the Reports 
and Papers in which the results of the investigations have from time to 
time been published. 
A list of the papers presented is subjoined. 
J. C. GLASHAN, 
Acting Secretary. 
List oF PAPERS PRESENTED IN SECTION III. 
“On the Analysis and Resolution of some Spectral Lines.” By 
Prof. J.C. McLennan, Ph.D. 
“On a Fatigue Effect observed in Metals under Bombardment by 
Alpha Rays.” By V. E. Pound, M.A. Communicated by Prof. 
McLennan. 
“On the Rate of Diffusion of the Emanation of Actinium.” By 
W. F. Kennedy, M.A. Communicated by Prof. McLennan. 
“Some Measurements on the Electrical Conductivity of Air by 
means of a Wilson Electrometer.” By A. Thomson, B.A. Communi- 
cated by Prof. McLennan. 
“A Note on Recoil Phenomena in Connection with the Radiation 
from Uranium.” By G. A. Cline, B.A. Communicated by Prof. 
McLennan. 
“Ice Formation on the St. Lawrence and Methods of Prevention.” 
By Prof. H. T. Barnes, D.Sc. 
“On the Terminal Expansion of some Rocks at high Temperatures. ” 
By A. E. Wheeler, B.Sc. Communicated by Dr. H. T. Barnes. 
“On the Amount of Radium and Radium Emanation present in the 
Water and Gases of Caledonia Springs.” By. Prof. A. $. Eve, D.Sc. 
“On the Influence of Acids and Salts on the Amount of Emanation 
Liberated from a Solution of Radium.” By A.S. Eve and D. McIntosh. 
“On the Radium Contents of Specimens from a Deep Boring at 
Beachville, Ont.” By A.S. Eve, D.Sc., and D. McIntosh, Ph.D. 
“The Chinook in Southern Alberta and Temperature Inversions at 
Sulphur Mountain, Banff.” By R. F. Stupart, Director of the Meteoro- 
logical Service. 
‘Observations of Atmospheric Electricity and Conductivity of the 
Air at Melville Island” (Arctie Ocean). By W. E. W. Jackson, M.A. 
Communicated by R. F. Stupart. 
“Water Vapour Lines in the Sun’s Born? By U. R. Gillis, 
M.Se., Lecturer in Physics, McGill University. Communicated by 
Dr. H. T. Barnes, 
