174 The Ottawa, Canada, Meeting 



Application of Science to the Electrical Industry." (Seventh address on 

 Science and Society program.) 



John Johnston, Director of Research, U. S. Steel Corporation. "The 

 Application of Science to the Metallurgical Field." (Eighth address on 

 Science and Society program.) The Scientific Monthly 48: 493-503. 1939. 



Symposia 



"Medical Biochemistry" (6 papers). Section on Chemistry and Section 

 on Medical Sciences. 



"The Nutrition Problem in North America" (8 papers). Section on 

 Chemistry. 



"The Application of Isotopes to Biochemical Properties" (4 papers). 

 Section on Chemistry and Section on Zoological Sciences. 



"Atmospheric Ozone and Measurement of Ultraviolet Light in Solar 

 Radiation" (4 papers). Section on Astronomy and Royal Astronomical 

 Society of Canada. 



"The Migration and Conservation of Salmon" (6 papers). Section on 

 Zoological Sciences. Publication No. 8 of the Association. 1939. 



"The Relation of Insects to Forest Conservation" (5 papers). American 

 Association of Economic Entomologists, Entomological Society of America, 

 Entomological Society of Ontario, Society of American Foresters, Canadian 

 Society of Forest Engineers and Association of Forest Engineers of Quebec. 



"The Genetics of Pathogenic Organisms" (11 papers). Section on 

 Botanical Sciences, Section on Medical Sciences, Section on Agriculture 

 and Genetics Society of America. Publication No. 12 of the Association. 

 1940. 



"Phytogeographical Problems of Northeastern Canada" (5 papers). Sec- 

 tion on Botanical Sciences, Botanical Society of America and American So- 

 ciety of Plant Taxonomists. 



"Root Rots and Seed Borne Diseases" (6 papers). Canadian Phyto- 

 pathological Society and American Phytopathological Society. 



"Micro-Elements and Deficiency Diseases" (9 papers). American Phy- 

 topathological Society and American Society of Plant Physiologists. 



"Drought Relations" (11 papers). American Society of Plant Physiolo- 

 gists and Genetics Society of America. 



"The Influence of Fire on Forests, Wild Life and Public Welfare" (3 

 papers). Ecological Society of America, Society of American Foresters 

 and Canadian Society of Forest Engineers. 



"History of Science in Canada" (9 papers). Section on Historical and 

 Philological Sciences. 



"Bacillus Calmette-Guerin (B.C.G.)" (5 papers). Section on Medical 

 Sciences. 



