1342 Wisconsin Academy of Sciences, Arts, and Letters . 
7. “A revision of the North American spiders of the family 
Attidae.” (By title.) G. W. and E. G. Peckham. 
8. “A rapid melanistic and subsequent partial albinistic 
change in a caged robin.” Hemry L. Ward. 
9. “On the interpretation of certain tropisms of insects.” 
Charles T. Brues. 
10. “Modern exhibitional tendencies of museums of natural 
history and ethnography designed for public use.” Henry L. 
Ward. 
11. “The scientific development of taxidermy and its effect 
upon museums.” George Shrosbree. 
12. “The North American species of Cyclops (By title.) 
C. Dwight Marsh. 
13. “An operculated gastropod from the Niagara formation 
of Wisconsin.” E. E. Teller. 
14. “A graphic comparison of the alteration of rocks by 
weathering with their alteration by hot solutions.” Edward 
Steidtmann. 
15. ’’Physiography of Northern Wisconsin.” (Illustrated 
by lantern slides.) S. Weidman. 
2:00 P. M. 
Joint meeting of the Academy and the Wisconsin Section 
of the American Chemical Society. 
16. “Purity and volatility of antimony produced by pre¬ 
cipitation.” L. A. Youtz. 
17. “The gravimetric determination of tellurium.” V. Len- 
her. 
18. “Some modified forms of simple apparatus.” L. A. 
Youtz. 
,19. “On glycyl derivatives of aromatic amido acids.” W. 
F. KoeTker and C. C. Le Febvre. 
20. “An experimental study of the dissolution of metals in 
acids.” Arden B. Johnson. 
21. “Chemical constitution as a factor in solubility.” L. 
Kahlenherg. 
