CONTENTS 
Pag* 
Chemistry. — The Heat Capacity of Electro Positive Metals and the Thermal 
Energy of Free Electrons 
By Gilbert N. Lewis, E. D. Eastman and W. H. Rodebush 25 
Physics. — Thermc-Electric Diagrams on the P-V-Plane . . By Edwin H. Hall 29 
Astronomy. — A Determination, of the Solar Motion and the Stream Motion 
Based on Radial Velocities and Absolute Magnitudes. By Gustaf Stromberg 36 
Agriculture. — Disease Resistance In Cabbage By L. R. Jones 42 
Physics. — Is a Moving Star Retaeded by the Reaction of Its Own Radiation? 
By Leigh Page 47 
Physics. — On Electromagnetic Induction and Relative Motion. II 
By S. J. Barnett 49 
National Research Council — Report of the Committee on Anthropology . . 52 
Notice of Biographical Memoirs 54 
