36 



Nutrients in Green Slioots of Trees, 10 m E. J. Petry 



Concerning Spheric Geometry. 10 m D. A. Rothrock 



On the Solution of Differential Equations by Caucliy's 



Parameter Metho<l, 10 m T. E. Mason 



On the Representation of a Number as the Sum of 



Consecutive Integers, 10 m T. E. Mason 



On Multiply Perfect Numbers, with a Table of 170 



New Ones together with the 47 previously 



published, 10 m R. D. Carmichael and T. E. Mason 



Theorem on Addition Formulage, 10 m Leslie McDill 



A Simple Method of Measuring Surface Tension, 5 m Arthur L. Foley 



Electromagnetic Induction in (Jorman Silver and 



Bismuth, 10 m Arthur L. Foley 



A New Method of Photographing Sound Waves, 



10 ni Arthur L. Foley and Wilmer II. Souder 



Recalescence in Magnetic Alloys, 10 m John B. Dutcher 



Diffraction Photographs. .'> m Mason E. Hufford 



Effect of Pressure on a Cadmium Cell. 10 m Rolla R. Ramsey 



The Cause of Polarization in a r':ulmium Cell. 1(> m Rolla R. Ramsey 



FrjDAV, S A'j I'. M. 

 The Story of Niagara Frank Hursley Taylor 



Saturday, 9:00 a. m. 

 The Regenerated Scale of Fiindulus heteroclitus with 



preliminary note on its forniation. ."> m Will Scott 



Coniosis. 20 m Robert Hessler 



The Effects of Deforestation on the Water I-evel of 



Montgojuery Coiinly. 10 m II. L. Barr 



Methods of Studying Animal Visifm, 30 m. ( lant<'rn) M. E. Ilaggerty 



The Climate of Indiana, 10 m W. A. McReth 



The Lessening of Forest Waste. 20 m S. J. Record 



Our Diminishing Wood Industries, 10 ra Stanley Coulter 



Some Archeological Specimens, 5 m A. J. Bigney 



The Archeology of Indiana and Ohio, 10 m (lantern) F. W. Gottlieb 



Ethnological Researches in the North Land. l.^> m. 



( lantern ) F. W. Gottlieb 



