TITLES OF PAPERS PRESENTED 13 



Page 

 The Sublimation Curve for Selenium Crystals of the Hexagonal Sys- 

 tem. L. E. Dodd 509 



Superposed Stroboscopic Velocities. L. E. Dodd 513 



The Relation Between Voltage and Candle-power in Modern Incandes- 

 cent Lamps. Wm. Kunerth 517 



The Action of Conical Horns. G. W. Stewart 521 



The Binaural Difference of Phase Effect. G. W. Stewart 522 



Some Preliminary Results on the Photo-electric Longwave Length 



Limit of the Metals (Platinum and Silver). Otto Stuhlman, Jr 



A New Non-inductive Resistance. H. L. Dodge 



A New Wall Rheostat of Large Current Capacity. H. L. Dodge 



Evolution of Mental Tests as Used in the Army. C. E. Seashore 



The Distribution of Musical Talent in the Freshman Class In the 



University. C. E. Seashore 



The Effect of Temperature on Resistance and Specific Resistance of 



Tellurium Crystals. Arthur R. Fortsch 523 



The Solar Eclipse of June 8, 1918. D. W. Morehouse 527 



