VI THE KUVAL SOCIETY UF CANADA 



on the Associated Sijnqdcsite. By J. B. Tyrrell, 



F.R.S.C, and R. P. D. Graham 13 



Some further Observations on the Life Histories of the 



Pacific Coast Salmon as Revealed by their Scale Markings. 



By J. Playfair McMurrich, M.A., Ph.D., LL.D 23 



Notes on the Scale-markings of the Halibut, and their 



Bearing on Questions Connected with the Conservation of 



the Fishery. By J, Play'fair McMurrich, M.A., 



Ph.D., LL.D....^ .33 



A Morphological and Cultural Study of Some Azotobacter 



By Dan. H. Jones, B.S.A 43 



The Diatoms of A^ew Brunswick and Prince Edward 



Island. By L. W. Bailey, LL.D., F.R.S.C 57 



On Some N'ew Species of Marine Invertebrates from the 



Cretaceous of the Queen Charlotte Islands. By Edward 



M. BuRWASH 77 



A Bacterial Soft Rot of Turnips. By F. C. Harrison, 



F.R.S.C. and Wilfrid Sadler 91 



The Effect of Low Temperatures on the Frog. By A. T. 



Cameron and T. I. Brownlee 107 



On the Existence of a Reducing Endo-Enzyme in Animal 



Tissues. By Prof. D. Fraser Harris 125 



A Contribution to the Study of Dolomitization. By R. C. 



Wallace 139 



Cereal Breeding on the Dominion Experimental Farms 



During the Past Decade. By Chas. E. Saunders, Ph.. D. 151 

 Bibliography of Canadian Entomology for 1912. By C. 



Gordon Hewitt, D.Sc 161 



Bibliography of Canadian Botany for the year 1912. By 



A. H. MacKay, LL.D 175 



Bibliography of Canadian Zoology for 1912 {Exclusive of 



Entomology). By Lawrence M. Lambe, F.G.S., 



F.G.S.A 187 



