TABLE OF CONTENTS V 



071 Osvwsis in Soils. The Efficiency of the Soil Constituents 

 as Semi-Permeable Membranes. By C. J. Lynde and 



H. A. DupRÉ 10'^ 



On a New Method of Measuring the Capillary Lift of Soils. 



By C. J. Lynde and H. A. Dupré 119 



Notes on the Penetrating Radiation due to Radioactive 



Substances in the Earth. By A. S. Eve, D.Sc, F.R.S.C. 131 

 The Scattering and Absorption of the y Rays of Radium. 



By J. A. Gray, D.Sc 139 



Records of Differences of Temperature between Mount 

 Royal and McGill College Observatory, Montreal {Fifth 

 Communication). By Professors C. H. McLeod 

 and H. T. Barnes ^ 1^1 



A Study of Iron Wire for Electrical Resistance Thermo- 

 meters. By Arthur A. Scott, M.Sc l'^3 



The Formation of Carbon Monoxide during the Rapid 

 Combustion of Carbon. By F. M. G. Johnson and D. 

 MclNTosH, F.R.S.C 1*^1 



On the Amount of Radium and Radium Emanation Present 

 in the Waters of Several Western Springs. By R. W. 

 Boyle and D. McIntosh, F.R.S.C 163 



The Analysis of Maple Products. Paper I. An Elec- 

 trical Conductivity Test for Purity of Maple Syrup. 

 By J. F. Snell 1^^ 



The"^ Corrosion of Metals by Water. By A. T. Stuart, 



. B.A.... ;• 183 



Transient and Permanent Phenomena in Electric Series 



Transformers. By Andrew McNaughton, M.Sc. . . . 189 



Researches in Physical Cheynistry carried out in the Uni- 

 versity of Toronto, VII. By Prof. W. Lash Miller 

 and Prof. Frank B. Kenrick, F.R.S.C 207 



The Sensitiveness of the Eye to Light and Color. By T. A. 



Neelin, M.A ^'"1 



Proofs of Certain Theorems Relating to Adjoint Orders of 



Coincidence. By Prof. J. C. Fields, F.R.S 249 



SECTION IV. 



Presidential Address: The Relationship of Medicine to 

 other Natural Sciences. By Albert G. Nicholls, 

 M.A., M.D., D.Sc, ;•■■.•■■ 



Yukonite, a New Hydrous Arsenate of Iron and Calcium, 

 from Tagixh Lake, Yukon Territory, Canada; with a note 



