1350 Wisconsin Academy of Sciences , Arts, and Letters. 
14. The radioactivity of some spring waters at Madison, 
Wis. 5 minutes. Herman Schlundt. 
15. An apparatus for density determinations. 10 minutes. 
W. J. Mead. 
1'6. The effect of temperature on the magnetic properties of 
electrolytic iron. 10 minutes. E. M. Terry. 
17. Magnetic rotation in iron cathode films. 10 minutes. 
L. R. Ingersoll. 
18-19. The evidence for temperature seiches. A hitherto un¬ 
considered factor in lake temperatures. 20 minutes. E. A. 
Birge. 
20. The bird stones of Wisconsin. 10 minutes. Chas. E. 
Brown. 
21. The Roddy six-nation wampum belts. ■ 5 minutes. Chas. 
E. Brown. 
22. The Mandan village sites of the upper Missouri. 10 
minutes. Arlow B. Stout. 
23. The origin of the sex-cells of Amia and Lepidostens. 10 
minutes. Bennet M. Allen. 
February 11th. 
Morning Session. 
The meeting was opened by the reading of the report of 
the secretary, after which the report of the treasurer was read. 
Dr. J. J. Davis and Mr. H. L. Ward were appointed as an 
auditing committee and subsequently reported that they had 
examined the accounts of the treasurer and found them correct. 
Mr. Wagner next, made a report for the library committee 
and submitted the list of exchanges. It was announced by Mr. 
Wagner that steps had been taken toward combining the Acad¬ 
emy Library with the University of Wisconsin Library. Upon 
motion of Mr. Wagner the society authorized the Librarian to 
dispose of duplicate sets of hooks by sale or otherwise. 
The dominating Committee reported the following nomina¬ 
tions for office during the ensuing term: 
President—Samuel Plantz. 
