MINUTES. xiii 



From the Palaontological Viewpoint," by John M. Clarke, 

 Ph.D., Sc.D., LL.D., Director of the Department of Sci- 

 ence and State Museum, Albany, N. Y. 



From the Astronomical Viewpoint," by Ernest W. Brown, 

 M.A., Sc.D., Professor of Mathematics, Yale University. 



From the Radioactive Viewpoint," by William. Duane, 

 Professor of Biophysics, Harvard Medical School. 



