VI THE ROYAL SOCIETY OF CANADA 



A^olc.s 0)1 the Nature of Burn-outs. By Frank T. Smutt and 



Miss Alice H. Burwasit (io 



7'Iie Oiliness or Lubricating Properties of the Various Scries of 



Hydrocarbons. By W. F. Seyer O'J 



Tlic I'hcrmal Evolution of Gases Absorbed by Charcoals and 



Carbonized Lignites. By Stuart McLean 73 



A New Vibration Experiment- — Cylinders and Rods Balanced 



on Cylinders. By John Satterly 85 



Automatic Mercury Pump. By D. F. Stedman 93 



llie Effect of Thermo-luminescence on Electrical Conductivity. 



By'c. A. MacKay 95 



On the Variation of the "Emanating Power" of Certain Uranium 

 Minerals with Temperature ami a New Secondary 

 Radium Ainanation Standard. By J. H. L. Joiix- 

 Stone J ()J 



Destructive Distillation Yields from British Columbia Tir aud 



Alder Wood. By William Agee Hardy Ill 



llie Coefficient of Viscosity of a Gas. An Elementary Laboratory 



Experiment. By John Satterly 117 



A Reversible Pendulum. By H. F. Dawes 125 



Selected Radiations Emitted by Specially Excited Mercury Atoms. 



By H. J. C. Ireton 131 



llie Radial Velocities of 59 J^ Stars. By J. S. Plaskett, W. E 



Harper, R. K. Young, and H. H. Plaskett 141 



On Some New Tormulae for the Direct Numerical Calculation 

 of the Coefficient of ÀTutual Induction of Coaxial 

 Circles. By Louis Y. King 143 



On a New' High Prequency Vibration GalvcDwmeter. By Louis 



Y. King 143 



0)1 the Photographic Recordi^ig and Measurement of Radio- 

 telegraph Signals. By Louis \\ King 143 



On a New Lecture Room lUustratio)i of Atomic Models. By 



Louis Y. King 144 



