VI THE ROYAL SOCIETY OF CANADA 



Note on the Preparation of the Silver Salts of the Fatty Acids and ^ 

 Their Behaviour towards Ammonia. By George 

 Stafford Whitby 257 



A Hydrate of an Oxonium Compound. By O. Maass and J. 



Russell 259 



The Crystallization of Supersaturated Solutions and Supercooled 



Liquids. By D. McIntosh 265 



SECTION IV 



Presidential Address. — The Palœo-Geography of Acadia. By L. 



W. Bailey 1 



The Delta of the Little River Group and some of its Peculiarities. 



By G. F. Matthew 17 



The Origin of the Purcell Trench, British Columbia {Koolenay 



Lake Valley). By Stuart J. Schofield 23 



The Glacial History of Prince Edward Island and the Magdalen 



Islands. By A. P. Coleman 33 



Description of a New Genus and Species (Panoplosaurus mirus) 

 of an Armoured Dinosaur from the Belly River Beds of 

 Alberta. By Lawrence M. Lambe 39 



Preliminary Description of a New Species of Trachodont Dinosaur 

 of the Genus Kritosaurus. Kritosaurus incurvimanus. 

 By Wm. a. Parks 51 



The Problem of the "Burn-out'' District of Southern Saskatchewan. 



By J. Stansfield 61 



Two Plant Associations from Areas near Radville, Saskatchewan. 



By Carrie M. Derick 67 



SECTION V. 



Presidential Address. — Dairy Bacteriology and its Earlier In- 

 vestigators. By F. C. Harrison 1 



Comparative Studies of Purine Metabolism in Various Repre- 

 sentative Mammals. By Andrew Hunter and F. W. 

 Ward 7 



