January So, 1895.] 



SCIENCE. 



Ill 



Blake and Mr. (i. 11. Liug. In the secre- 

 tary's report, it was stated that the total 

 membership of the Society was 251. The 

 council and officers elected for 1895 were as 

 follows : President, Dr. George W. Hill ; 

 A^ice President, Professor Hubert A. Xew- 

 ton ; Secretary, Professor Thomas S. Fiske ; 

 Treasurer. Professor R. S. Woodward ; Li- 

 brarian, Dr. E. L. Stabler; Committee of 

 Publication, Professor Thomas S. Fiske, 

 Professor Alexander Ziwct. Professor Frank 

 Morley ; Other Members of the Council, 

 Professor Thomas Craig, Dr. Emory Mc- 

 Clintock, Professor ^Mansfield Merriman, 

 Professor Henry B. Fine. Professor E. Has- 

 tings Moore, Professor Ormond Stone, Pro- 

 fessor Simon Xewcomb, Professor Charlotte 

 Angas Scott, Professor Henry S. "White. 



The address of the retiring president. Dr. 

 McClintock, was read to the Society by Dr. 

 Charlton T. Lewis. It was entitled The 

 Past and Future of the Society. The following 

 papers. were also read: On a Certain Chiss 

 of Canonicfil Forms, bj- Mr. Ralph A. Roberts; 

 A New Definition of the Hyperbolic Functions, 

 by Professor Mellen W. Haskell. 



Thomas S. Fiske, Secretary. 



COLI'MBIA COLLKGE. 



IOWA ACADEJtY OF SCIENCES. 



Xinth annual session, Des Moines, Iowa, 

 December 27 and 28, 1894. 



Thursday Morning, December 27. 



1. Inter- Lusial Till near Sioux City: J. E. 

 Todd and H. Foster Bain. 



2. Pre-Glacial Elevation of Iowa. 3. The 

 Central Iowa Section of the Mimssippian Serie-t : 

 II. Foster Bain. 



4. Secular Decay of Granitic Pochi. o. Struct- 

 ure of Paleozoic Echinoids. 6. Opinions Con- 

 cerning the Age of the Sioux Quartzite. 7. P- 

 liutrations of Glacial Planing in Iowa : Charles 

 R. Keyes. 



8. Record of the Grinnell Deep Boring. 9. 

 The Topaz Crystals of Thomas Mountain, Utah : 

 Arthur J. Jones. 



10. The Lansing Lead Mines : A. G. Leon- 

 ard. 



11. How Old is the 3Iississippi ? 12. On 

 the Formation of the Flint Beds of the Burling- 

 ton Limestones. Vi. Coincidence of Present 

 and Pre-Glacial Drainage Systems in Ijctreme 

 Southeastern Iowa. 14. Extension of the Illi- 

 nois Lobe of the Great Ice Sheet into Iowa. 15. 

 Glacial Markings in Southeastern Iowa: F. M. 

 Fultz. 



16. The Maquoheta Shales in Delaware 

 County, Iowa. 17. On Some Supposed Devon- 

 ian Outliers in Delaware County, Iowa : S. 

 Calvin. 



18. On the Occurrence of Megalomus Cana- 

 dense in the Le Claire Beds at Port Byron, III. 



19. Geological Section of Y. M. C. A. Ar- 

 tesian Well at Cedar Papida, Iowa: William 

 H. Norton. 



Thursday Afternoon. 



20. President's Address ; Some Recent Work 

 on the Theory of Solutions : L. AV. Andi'cws. 



21. Report of Committee on State Fauna: 

 C. C. Nutting. 



22. A Xew Method of Studying the Magnetic 

 Properties of Iron. 23. On the De.ngn of 

 Transfonners and Alternating Ciirrent Motors. 

 24. Note on a Phenomenon of Diffraction in 

 Sound: W. S. Franklin. 



25. A Kymograph and its Use : AV. S.Windle. 



26. The Volatility of Mercuric Chloride : A. 

 C. Page. 



27. Notes on Applying Pollen in the Cross- 

 breeding of Plants : N. E. Hansen. 



Friday Morning, December 28. 



28. Changes that Occur in the Ripening of 

 Indian Corn: C. F. Curtiss. 



29. Methods of Soil Analysis: G. E. Patrick. 



30. The Coal Supplies of Polk County, Iowa : 

 Floyd Davis. 



31. A Study of the Nitrogen Compounds of 

 the Soil : D. B. Bisbee. 



32. A Chemical Study of Honey: W. H. 

 Heileman. 



