XVIII 5 ROYAL SOCIETY OF CANADA 
the least possible delay, in the manner provided by sub-clause II of 
clause 10 of the regulations. 
E. DEVILLE, 
Secretary. 
List of Papers Read. 
1.—Presidential Address. “The Origin and Life of Radium.” By 
Prof. E. Rutherford. 
2.—“ Impurities of Ice and Snow.” By F. T. Shutt, M.A. 
3.—‘ Further Notes on the Difference in Temperature between 
Mount Royal and McGill College Grounds; Local Temperature Fore- 
casting.” By Professors C. H. McLeod and H. T. Barnes. 
4,—“ Temperature Equilibrium between Ice and Water.” By Prof. 
H. T. Barnes. 
5.—* The Absorption of Radioactive Emanations by Charcoal.” By 
Prof. E. Rutherford. 
6.—< Effect of Temperature and Velocity of Gas Current on the 
Absorption of Radioactive Emanations by Charcoal.” By R. W. Boyle, 
M.Sc. Communicated by Prof. E. Rutherford. 
7.—“ Some Characteristics of the Waters of the Ottawa and the 
St. Lawrence Rivers.” By Prof. R. F. Ruttan. 
8.—“ The Radioactivity of Lead.” By Prof. J. C. McLennan and 
V. E. Pound. 
9.—“ On the Specific Resistances of Heusler’s Alloys.” By Prof. 
J. C. McLennan. 
10.—“ Some Experiments on Condensation Nuclei.” By Prof. J. 
C. McLennan and D. B. Nugent. 
11.—“‘ On the Quantity of Radium Present in Typical Rocks in 
the Immediate Neighbourhood of Montreal.” By A. S. Eve, M.A., and 
A. D. McIntosh, D.Se. Communicated by Prof. E. Rutherford. 
12.— Note on the Determination of Specific Inductive Capaci- 
ties.” By Prof. J. C. McLennan. 
13.—“ On the Electrical Conductivities of Mixtures of Electro- 
lytes.” By J. A. Gardiner, B.A. Communicated by Prof. J. C. 
McLennan. 
14.—“ Barometric Pressure over Northern Canada.” By R. F. 
Stupart. 
15.— On the Amount of Radium Emanation in the Atmosphere.” 
By A. 8. Eve, M.A. Communicated by Prof. E. Rutherford. 
16.—“ The Ionization Properties of Helium.” By Prof. E. Ruther- 
ford, F.R.S., and A. D. McIntosh, D.Sc. 
