VI. 



MATHEMATICAL AND PHYSICAL PAPERS. 



"Variations of Latitude." 



By E. Miller, University of Kansas, Lawrence. 



"The Genesis of Gold in Mineral Veins and Placers." 



By J. T. LovEWELL, Topeka. 



"The Gas-engine in the Commercial Development of Kansas." 



By P. F. Walker, Lawrence. 



"Note on Certain Formulas for the Design of Reenforced Concrete 

 Beams." 



By A. K. Hubbard, Lawrence. 



"Examination of Coal-dust after Explosions in Mines of South- 

 eastern Kansas." 



By Edward Bartow, University of Illinois, Urbana. 



"The Foucault Experiment." 



By J. T. Lovewell, Topeka. 



"A Deep Well at Emporia." 



By Alva J. Smith, Emporia. 



"The Interpretation of Indicator Diagrams." 



By Charles I. Corp, Lawrence. 



"A Bit of Engineering at Mount Vernon." 



By M. L. Ward, Ottawa University. 



(197) 



