IV THE ROYAL SOCIETY OF CANADA 



The Practical Study of a Catenary. By John Satterly 37 



Analysis of Earthquake Waves. By Otto Klotz 47 



The Analysis of Estuary Tidal Records by a Projection Method. 



By Violet Henry 55 



The "Alkali'' Content of Soils as Related to Crop Growth. (A 

 Report of Progress). By Frank T. Shutt and Alice 

 H. BuRWASH 57 



Physical Problems which Arise in Studying the Influence of 

 Atmospheric Conditions Upon Health. By A. Norman 

 Shaw 71 



The Capacity of the Capillary Electrometer. By A. L. Clark . . 73 



Algebraic Proof of the Existence Theorem for the Branches of an 



Algebraic Function of One Variable. By J. C. Fields 87 



SECTION IV 



A Devonian Glacier. By G. F. Matthew 1 



Granite Segregations in the Serpentine Series of Quebec. By 



John A. Dresser 7 



The Relationships of the Palœozoic to the Pre-Cambrian along the 

 Southern Border of the Laurentian Highlands in 

 Southeastern Ontario and the Adjacent Portions of 

 Quebec. By M. E. Wilson 15 



The Norite Rocks of the Lake Athabaska Region. By F. J. 



Alcock 25 



A Local Occurrence of Differentiation in Granite on the Churchill 



River, Northern Manitoba, Canada. By F. J. Alcock 31 



The Turtle Mountain Coal Measures. By D. B. Dowling. ... 35 



The Origin and History of the Great Canon of Fraser River. By 

 Charles Camsell , 



The Origin of the Rocky Mountain Trench, B.C. By S. J 



Schofield 1 



