IV 



ROYAL SOCIETY OF CANADA 



III. An Adventurer from Hudson Bay— Journal of Matthew 



Cocking. By Lawrknce J. Burpee 89 



IV. History of the Queen's Rangers. By James Hanxay, 



^•C.L 123 



! 



SECTIOX III. 



.1. Note on an Improvement in the Method of determining 

 of Visibility Curves. By C. S. Wright, B.A. Com- 

 municated by Prof. J. C. McLennan 3 



II. The Secondary y Rays due to the y Rays of Radium C. 

 (Diagrams). By A. S. Eve, D.Sc. Communicated 

 by Dr. H. T. Barnes 5 



III. On the Radioactivity of Potassium and other Alkali 

 Metals (Diagrams). By Prof. J. C. McLennan 

 and Mr. W. T. Kennedy 15 



lY. Note on the Temperature Variations in the Specific 

 Resistance of Heusler's Alloys (Diagrams). By H. 

 A. McTaggart, M.A., and J. K. Robertson, M.A. 



Communicated by Prof. J. C. McLennan 31 



V. On the Conductivity of Mixtures of Dilute Solutions 

 (Diagrams). By J. A. Gardiner, M.A. Communi- 

 cated by Prof. J. C. McLennan 37 



VI. The Absorption of the Different Types of Beta Rays to- 

 gether with a Study of the Secondary Rays Excited 

 by them (Diagrams) . By V. E. Pound, M.A. Com- 

 municated by Prof. J. C. McLennan 53 



VII. On Variations in the Conductivity of Air enclosed in 

 Metallic Receivers (Diagrams). By C. S. Wright, 

 B.A. Communicated by Prof. J. C. McLennan. ... 85 

 VIII. On the Charges gained by Insulated Metallic Conductors, 

 surrounded by other Conductors, and the Relation of 

 these Charges to the Vol ta Effect (Diagrams) . By J. 

 K. Robertson, M.A. Communicated by Prof. J. C. 

 McLennan Ill 



IX. The Constitution and Properties of Heusler's Alloys, in- 

 cluding a Study of their Microstructure. By H. A. 

 McTaggart, M.A. Communicated by Prof. J. C. 



McLennan 135 



X. Some further Results on the Absorption of Thorium 

 Emanation by Charcoal (Diagrams). By R. W. 

 Boyle, M.Sc. Communicated by Dr. H. T. Barnes. 141 



