TRANSACTIONS 



OF 



THE ROYAL SOCIETY OF CANADA 



Series III JUNE and SEPTEMBER, 1918 Vol. XII 



SECTION III. MATHEMATICAL, PHYSICAL AND CHEMICAL 



SCIENCES 



CONTENTS 



Page 



1 . Presidential Address — The War and Science 



By A. Stanley Mackenzie I 



2. Constitution of Certain Polynitro Compounds 



By J. Bishop Tingle and Walter Albert Lawrance 7 



3. Stearic and Palmitic Esters of the Isomeric Propylene Glycols .... 



By L. Isabel Howe 13 



4. The Compounds of Phenol and the Creîols with Pyridine (Abstract) 



By F. W. Skirrow and T. V. Binmore 1 9 



5. On an Electrical Method of Determining the Lime Requirements 



of Soils By C. J. Lynde 21 



6. The Composition of Bran and Shorts as Milled under Regulations 



of the Canada Food Board 



By Frank T. Shutt and Roy L. Dorrance 27 



7. Some Notes on the Halifax Explosion By Howard L. Bronson 31 



8. The Transmission of Earthquake Waves B3' Otto Klotz 37 



9. The Application of Wireless by the Dominion Observatory for 



Longitude Determinations By R. M. Stewart 43 



10. Air and the Law of Corresponding States By A. L. Clark 47 



1 1 . The Angle of Contact on Glass Made by Mercury when covered 



with Another Liquid By A. L. Clark 5 1 



12. Periodic Precipitation By Miss A. W. Foster 55 



13. Regularities in the Spectra of Lead and Tin. . .By R. V. Zumstein 59 

 Î4. New Lines in the Extreme Ultra-Violet of Certain Metals 



By D. S. Ainslie and D. S. Fuller 65 



1 5. The Adsorption of Helium by Charcoal By Stuart McLean 79 



16. The "Alkali" Content of Soils as Related to Crop Growth 



'' By Frank T. Shutt and E. A. Smith 83 



17. A Comparative Study of Magnetic Declination at Agincourt and 



Meanook during the year 1917 By W. E. W. Jackson 99 



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