312 



SCIENCE 



[Vol. LV, No. 1421 



Geophysical Union, and to elect officers. The 

 meetings were well attended and several of the 

 sections reported gratifying progress in their 

 respective fields. 



The delegates selected to represent the Union 

 and its sections at the Rome meetings are : 



Geodesy : Wm. Bowie, United States Coast and 

 Geodetic Survey, Washington, D. C. 



Seismology: Harry Fielding Eeid, Johns Hop- 

 kins University, Baltimore, Md. 



Meteorology: H. H. Kimball, United States 

 Weather Bureau, Washington, J). C. 



Terrestrial Magnetism and Atmospheric Elec- 

 tricity: L. A. Bauer, Carnegie Institution, Wash- 

 ington, D. C. 



Physical Oceanography: G. W. Littlehales, 

 Hydrographic Otfiee, Washington, D. C. 



Voleanology: H. S. Washington, Geophysical 

 Laboratory, Washington, D. C. 



The officers, as of July 1, 1922, are : 



The Union: L. A. Bauer, chairman; A. L. Day, 

 vice-chairman; Wm. Bowie, secretary. 



Geodes}': John F. Haj'ford, chairman; R. L. 

 Faris, vice-chairman ; N. L. Bowen, secretary. 



Seismology: W. J. Humphreys, chairman; J. B. 

 Woodworth, vice-chairman; D. L. Hazard, secre- 

 tary. 



Meteorology: E. H. Bowie, chairman; E. DeC. 

 Ward, vice-chairman; A. J. Henry, secretary. 



Terrestrial Magnetism and Atmospheric Elec- 

 tricity: W. F. G. Swann, chairman; L. A. Bauer, 

 vice-chairman; J. A. Fleming, secretary. 



Physical Oceanography: J. P. Ault, chai/rman; 

 G. W. Littlehales, vice-chairman; W. E. Parker, 

 secretary. 



Voleanology: L. H. Adams, chairman; T. A. 

 Jaggar, vice-chairman; E. B. Sosman, secre- 

 tary. 



Geophysical Chemistry: H. S. Washington, 

 chairman; Whitman Cross, vice-chairman; E. B. 

 Sosman, secretary. 



W. J. HUMPHEETS, 



Secretary for the Union 



LECTURES ON LIGHT AND THE CONSTITU- 

 TION OF MATTER AT THE UNIVER- 

 SITY OF WISCONSIN 

 Professor H. A. Loebntz, of Leiden, Hol- 

 land, is delivering a series of four lectures on 

 the general subject of Light and the Constitu- 

 tion of Matter at the University of Wisconsin 

 from March 20 to 27. Following the lectures, 

 on March 30, 31, and April 1, a colloquium, on 



the "Fundamental concepts of electro-dynamics 

 and of the electron theory," will be held in his 

 honor. As shown in the following program, 

 the papers presented will summarize the 

 present status in various fields with especial 

 reference to the unsolved problems and the 

 relation between theoi-y and experiment. Dr. 

 Lorentz will respond to each, and general dis- 

 cussion will be invited. The university extends 

 a cordial invitations to attend both the lectures 

 and the colloquium to all persons interested. 

 Program : 



Thuksdat, Makch 30 

 The experimental basis for the laws of electro- 

 dynamic action: W. F. G. Sw.4.nn, University 

 of Minnesota. 

 Astrophysical evidence concerning radiant energy: 



Haklow Shaplet, Harvard Observatory. 

 Deduction of the laws of electro-dynamics from 

 the relativity principle: Leigh Page, Yale Uni- 

 versity. 

 Analytical formulation of electro-magnetic theory 

 through the field concept: Max Mason, Uni- 

 versity of Wisconsin. 



Fridat, March 31 

 The rotating earth as a reference system for light 

 propagation: L. Silberstein, Research Labora- 

 torj', Eastman Kodak Company. 

 Application of statistical mechanics to electron 



theory: A. C. Lusn, University of Chicago. 

 Scattering .of light and resonance radiation in 

 relation to optical theories: E. W. Wood, Johns 

 Hopkins University. 

 Thermal radiation, — a discussion of recent experi- 

 mental results: C. B. Mendenhall, University 

 of Wisconsin. 



Saturday, April 1 

 Electron theory of metals, volume phenomena: 



P. W. Bridgman, Harvard University. 

 Electron theory of metals, surface phenomena: 

 K. T. Compton, Princeton University. 



SCIENTIFIC NOTES AND NEWS 

 De. Feank Schlesingee, director of the 

 Yale Observator-y, has been elected chairman 

 of the American delegation to the meeting of 

 the International Astronomical Union that 

 opens at Rome on May 2. Other members of 

 the delegation are Messrs. Aitken, Curtis, Lee, 

 Miller, Russell, St. John, Seares and Shapley. 



Dr. H. Fostee Bain, direetoi- of the Bureau 



