27 



GEOLOGICAL SUBJECTS. 



9. Crushing strength of Bedford Oolitic limestone in cubes and 



prisms, 10 m W. K. Hatt. 



10. Some mounds of Vanderburg County, Indiana, 10 m A. H. Purdue. 



11. The Lake Michigan and Mississippi Valley water shed, o m. . . .T. H. Bali. 

 ^12. Some Indiana eskers, 15 m Chas. R. Dreyer. 



13. Some facts concerning sand ridges and beds, water courses, wells 



and Springs in Lake County, 10 m T. H. Ball. 



14. Report of a moraine of Niagara limestone, near Kicmond, 10 m..Jos. Moore. 



MATHEMATICAL SUBJECTS. 



lo. A new formula for determining the friction of shafting .J. J. Flather. 



10. Orthogonal surfaces, 20 m A. S. Hathaway. 



17. The Calendar Group, 10 m C. A. Waldo. 



18. Study of euthymorphic function of the first order, 10 m E. M. Blake. 



19. New mechanical computer, 20 m Kred Morley. 



PHYSICAL SUBJECTS. 



20. A new apparatus for photographic surveying, 20 m Fred Morley. 



21. Experiments on the surface tension of water above 100° C, 8 m. 



Chas. T. Knipp. 



22. Crushing strength of wrought iron cylinders, 10 m. 



AV. K. Hatt and L. Fletemeyer. 



23. Test of a (i0,000 lb. car axle, ■") m W. F. M. Goss. 



24. Subdivision of pow«r, 10 m .1. .J. Flather. 



25. Electromagnets W. E. (ioldsborough. 



26. An efficiency surface for Pelton motor, 5 m W. K. Hatt. 



27. On seiches, 15 m A. W. Dufi. 



28. Some experiments on the phenomenon of the elevation of the 



elastic limit, 10 m W. K. Hatt. 



29. Empirical formula for viscosity as a function of temperature, 



10 ra A. W. Duff. 



30. Cadmium cells as compared with the standard Clark cells, 10 m, 



S. N. Taylor. 



"Author absent; paper not presented. 



