29 

 LIST OF PAPERS TO BE READ, 



ADDRESS BY THE RETIRING PRESIDENT, 

 CAKL L. MFKS, 



At U o'clock Friday morning, at Shortridge High School. 

 Subject: "Electricity and Matter; Recent Developments." 



The following laperswill be read in the order in which they appear on the program, 

 except that certain paperd will be presented "paiv! pr(»«« " in sectional meetings. When a 

 paper is called and the reader is not present, it will be dropped to the end of the list, unless 

 by mutual agreement an exchange can be made with another whose time ig approximately 

 the fame. A\here no time was sent with the papers, they have been uniformly assigned ten 

 minutes. Opportunity will be given after the reading of each paper for a brief discussion. 



N. B.—By the order of the Academy, no paper can be read until an abstract of its contents or 

 the xoritten paper has been placed in the hands of the Secretary. 



GENERAL. 



1. City Dust- -Cause and Efl'eet, 15 m Robert Hessler 



2. Old Water Power Mills of Carroll County, 10 m Frtd J. Breeze 



3. Photography for the Nature Student (illustrated by the stereoptieon), 20 m. 



Benjamin W. Douglass 

 •■'4. The Rosebud Indian Celebration, 10 m Albert B. Reagan 



PHYSICS, MATHEMATICS, ASTRONOMY AND PHYSIOGRAPHY. 



5. A Device for Determining the Period of a Pendulum, 5 m Herman S. Chamberlain 



6. Some Experiments with a Simple Jolly Balance, 10 m Lynn B. McMullen 



7. "N"-Rays, 15 m Roll a R. Ramsey and W. P. Haseman 



8. Electro-Magnetic Induction in Different Conductors, 10 m. 



Arthur L. Foley and C. A. Evans 



9. Interference Fringes from the Path of an Electric Discharge, 5 m. 



Arthur L. Foley and J. H. Haseman 



10. On the Deformation of Surfaces Referred to a Conjugate System of Lines, 10 m. 



Burke Smith 



11. Warped Surfaces with two Distinct Rectilinear Directrices, 10 m C. A. Waldo 



12. A New Form of Mathematical Models, 10 m C.A.Waldo 



13. Measures of Some Neglected Pairs of Double Stars, 5 m John A. Miller 



14. An Esker in Tippecanoe County, Indiana, 10 m W. A. McBeth 



15. Notes on the Mississippi Delta, 15 m W. A. McBeth 



15a. The Newtonian Idea of the Calculus, 20 m A. S. Hathaway 



