1895.] Proceedings of Scientific Societies. 207 
C. R. Keyes ; Secretary and Treasurer, Herbert Osborn; Ex-officio, L. 
W. Andrews, H. W. Norris, C. R. Keyes, Herbert Osborn; Elective, 
C. C. Nutting, M. F. Arey, W. S. Hendrixson; Librarian, C. R. 
Keyes. 
The following papers were read: 9 a. M., Business Session of 
Council. 10 A. M., J. E. Todd and Foster Bain: 1. Inter-Leesial Till 
near Sioux City; H. Foster Bain: 2. Pre-Glacial Elevation of Iowa; 
3. The Central Iowa Section of the Mississippian Series; Charles R. 
Keyes: 4. Secular Decay of Granitic Rocks; 5. Structure of Paleo- 
zoic Echinoids; 6. Opinions Concerning the Age of the Sioux Quartz- 
ite; 7. Illustrations of Glacial Planing in Iowa; Arthur J. Jones: 8. 
Record of the Grinnell Deep Boring ; 9. The Topaz Crystals of Thomas 
Mountain, Utah; A. G. Leonard: 10. The Lansing Lead Mines; F. 
M. Fultz: 11. How Old is the Mississippi? 12. On the Formation of 
the Flint Beds of the Burlington Limestones ; 13. Coincidence of Pre- 
sent and Pre-glacial Drainage Systems in Extreme South-eastern Iowa; 
14. Extensions of the Illinois Lobe of the Great Ice Sheet into Iowa; 
15. Glacial Markings in South-eastern Iowa; S. Calvin: 16. The Ma- 
quoketa Shales in Delaware County, Iowa; 17. On Some Supposed 
Devonian Outliers in Delaware County, Iowa; William H. Norton: 
18. On the Occurrence of Megalomus canadense in the LeClaire Beds 
at Port Bryon, Ill.; 19. Geological Section of Y. M. C. A. Artesian 
Well at Cedar Rapids, Iowa. 1 P. m. Report of Secretary and 
Treasurer. Report of Librarian. Report of Committees. 2 P. M. 
L. W. Andrews: 20. President’s Address, Recent advances in the 
Theory of Solutions; C. C. Nutting: 21. Report of Committee 
on State Fauna; W. S. Franklin: 22. A New Method of Study- 
ing the Magnetic Properties of Iron; 23. On the Design of Trans- 
formers and Alternating Current Motors; 24. Note on a Phe- 
nomenon of Diffraction in Sound; W. S. Windle: 25. A. Kymo- 
graph and Its Use; A. C. Page: 26. The Volatility of Mercuric 
Chloride; N. E. Hansen: 27. Notes on Applying Pollen in the Cross- 
breeding of Plants. 9 a. M. Business Meeting. 9.30 a. m. C. F, 
Curtiss: 28. Changes that Occur in the Ripening of Indian Corn; G. 
E. Patrick: 29. Methods of Soil Analysis; Floyd Davis: 30. The 
Coal Supplies of Polk County, Iowa ; D. B. Bisbee: 31. A Study of 
the Nitrogen Compounds of the Soil; W. H. Heileman: 32. A Chem- 
ical Study of Honey; A. A. Bennett: 33. Notes from the Chemical 
Laboratory, Iowa Agricultural College, 1894. 1.30 P. m. F. C. Stew- 
art: 34. Effects of Heat on the Germination of Corn and Corn Smut ; 
C. W. Mally: 35. A General Discussion of the Family Psyllidæ, “ith 
