Proceedings of the Academy. 
557 
24. Observations Concerning the Eespiration of Turtles. Frances E. Die- 
bold. 
25. A Quantitative Study of the Bacteria of Lake Mendota. E. B. Fred and 
Frank C. Wilson. 
26. The Hydrogen Ion Concentration in Wisconsin Lake Waters. Frank C. 
Wilson, E. B. Fred, and C. Juday. 
Third Session, Friday, April 14, 2:00 P. M. 
Presentation of Papers. 
27. The Significance of an Economic Fisheries Exhibit and Its Eelation to 
Conservation. T. E. B. Pope. 
28. The Analytical Chemistry of Selenium and Tellurium. V. Lenher. 
29. The Summer Temperature of the Bottom Water in Some Deep Lakes of 
the Western United States. Geo. I. Kemmerer. 
30. Unusual Veinings in the Eichardton Meteorite. E. N. Buckstapp. 
Illustrated with specimens. 
31. The Progress of Topographic Mappings in Wisconsin. W. O. Hotchkiss. 
32. Eoad Material Surveys in Wisconsin. E. F. Bean. 
33. The Lime Industry in Wisconsin. E. Steidtmann. 
34. The Mining of Sulphur at Freeport, Texas. Ira Edwards. Illustrated. 
35. The Upper Mississippi River as a Commercial Waterway. E. H. Whit- 
beck. 
36. The Cytology of Venturia. C. N. Frey. 
The annual dinner was held on Thursday evening at the Hotel 
Wisconsin, with 86 persons in attendance. 
Following the dinner brief addresses were made in honor of 
three of the early members of the Academy who are commemorated 
on the Semi-centennial Medallion. President E. A. Birge spoke 
on Dr. George W. Peckham, Mr. William W. Wight on Dr. I. A. 
Lapham, and Dr. John J. Davis on Dr. P. K. Hoy. 
The Secretary presented the following applications for member¬ 
ship. On motion he was instructed to cast the ballot in their favor: 
Irving M. Addleman, Wausau 
B. P. Churchill, Milwaukee 
H. H. Conwell, Beloit 
Percy M. Dawson, Madison 
H. D. Densmore, Beloit 
Edward Evans, La Crosse 
Geo. J. Fiebiger, Waterloo 
Arthur C. Foster, Ealeigh, N. C. 
Edwin B. Fred, Madison 
Chas. N. Frey, New York, N. Y. 
W. A. Hamilton, Beloit 
E. G. Hastings, Madison 
