26 



GEOLOGICAL SUBJECTS. 



'•■■8. Glacial and Eolian Saiifls of th« Iroquois and Tippecanoe River 



valleys, 10m A. H. Purdue 



9. ^Tlie recent eartlKjuakes east of the Kocky Mountains, 10 m. .A. H. Purdue 



10. -Some minor processes of erosion, 10 m J. T. Scoville 



11. 'Kettle holes at Maxinkuckee, 5 m J. T. Scoville 



*12. Fossils from sewer trenches in the glacial drift, 15 m Wni. M. AVhitten 



13. Kelief inaji of Arkansas, 10 m lohn F. Newsom 



M ATH EM AT I C A L SUBJECTS. 



14. Some skew surfaces of the 3d and 4th degree, 15 m ('. A. Waldo 



15. *\ problem in gravitational attraction, 5 m A. W. DufF 



Ifi. Note relative to Peirce's " Linear Associative Algehra ". . James Byrnie Shaw 



PHYSICAL SUBJECTS. 

 '•■17. Some old and new experiments in sound, 10 m M. N. Elrod 



18. Variation of a standard thermometer, 10 m Chas. T. Knipp 



19. ^A method of graphically representing the laws of falling- 



bodies, 5 m F. P. Stauffer 



20. Rates of combustion in locomotive furnaces, 10 m R. A. vSmart 



21. The influence of heat, the electric current, and magnetism upon 



Young's Modulus, 15 m ^hlry C. Noyes 



22. ''The temperature coefficient of the surface tension of liquids, 



15 m Arthur L. Foley 



23. Strains in steam machinery. 5 m \V. F. M. (toss 



24. Tlie viscosity of a polarized dielectric, 12 m \. W. Duff 



25. "A modification of the ring method for permeability, 10 m \. \V. \)uff 



•■'20. Some peculiarities in the formation and descent of drops, 5 m. .A. W. Dufi 



27. ^The effects of changes of temperature and pressure on viscosity, 



5 m A. W. Duff 



28. < )n the alternating-current dynamo, 15 m W. E. Goldsl)orough 



'•'Neither paper nor abstract furnisheil the Academy for publication; no further men- 

 tion made in the proceedings. 



Note: The titles set off by small numerals are discussed in the body of the proceed- 

 ings under corresponding heads given in the foot notes. 



1. The Charleston (Missouri) earthquake. 



Some minor eroding agencies. 



Ke:tle holes near Lake Maxinkuckee. 



The irravitational attraction of a homogenous ellipsoid of revolution. 



(Trai)hir representation of the law of falling bodies. 



The surface tension of liquids. 



A method of measuring permeal)ility. 



Empirical formula for the temperature variation of viscosity. 



