430 



SCIENCE 



[N. S. Vol. XLIX. No. 1270 



S. J. Meltzer and M. Wollstein: The influence 

 of degeneration of a vagus nerve upon the de- 

 velopment of pneumonia. 



Demonstration of war research problems at the 

 National Bureau of Standards. 



Evening Session 



William Ellery Hale Lecture, by James Henry 

 Breasted, professor of Egyptology and Oriental 

 history. University of Caucago. Subject: The 

 origin of civiligation — from the old stone age to 

 the dawn of civilisation. 



Eeception to members and guests at the United 

 States National Museum, National Gallery of 

 Art. 



TUESDAY, APEIL 29 



Morning Session 



Edwin H. Hall: The effect of great pressure on 



the electric conductivity and thermo-electric 



properties of metals. 

 Edwin H. Hall:" Oomments on the results of 



Bridgman's experiments. 

 Charles Lane Poor (introduced by J. S. Ames) : 



Line of position computer. 

 Irving Langmtjik: The arrangement of electrons 



in atoms and molecules. 

 Henbt p. Osborn : Paleomastodon, the ancestor of 



the long-jawed mastodons only. 

 Henry E. Osborn: Seventeenth skeletons of Mo- 



ropus: probable habits of this animal. 

 Thomas B. Osborne and Alfred J. Wakeman: 



The preparation of vitamine-free proteins. 

 Arthur G. Webster: Tentative results in interior 



ballistics. 

 Arthur G. Webster: Tentative results in elastic 



hysteresis. 



Afternoon Session 



Edwin H. Hall: Thermal conduction in metals, 

 from the standpoint of dual electric conduction. 



Edwin H. Hall: The thermo-electric equation 

 P = T dV/dT onee more. 



A. O. Leuschner and Sophia H. Levy: Perturba- 

 tions of minor planets discovered by James C. 

 Watson: (104) Clymene (106), Dlone (168), 

 Sibylla (175), Andromache. Eead by title. 



Arthue G. Webster: The most perfect tuning 

 fork. 



Arthur G. Webster : Angle of repose of wet sand. 



Edward BIasner: Geometry of the wave equation. 



C. G. Abbot: Rotating projectiles from smooth- 

 bore guns (illustrated). 



C. G. Abbot: Means for measuring the speed of 

 projectiles in flight (illustrated). 



C. G. Abbot: Recent simultaneous measurements 

 of the solar constant of radiation at Mount Wil- 

 son, California, and Galama, Chile (Ulustrated). 



John C. Merriam: Human remains from the 

 Pleistocene of Rancho La Brea (illustrated). 



WUliam Ellery Hale Lecture, by James Henry 

 Breasted, professor of Egyptology and Oriental 

 history, University of Chicago. Subject: The 

 origin of civilization — the earliest civilisation 

 and its transition to Europe. 



WEDNESDAY, APRIL 30 



Afternoon Session 



Joint session National Academy of Sciences vri.th 

 National Research Council. 



George E. Hale: The past work and future plans 

 of the National Research Coimoil. 



John C. Merriam: The Division of General Rela- 

 tions, Section on Relations with Educational In- 

 stitutions and State Committees. 



R. A. Millikan: The Division of Physics, Mathe- 

 matics, Astronomy and Geophysics. 



Dayton C. Miller: Pressures and velocities, in- 

 ternal and external, due to the discharge of large 

 guns. 



E. W. Washburn: The Division of Chemistry and 

 Chemical Technology. 



A. A. Noyes: Nitrate investigations. 



Whitman Cross: The Division of Geology and 

 Geography. 



E. G. HussEY: The Division of Medicine and Re- 

 lated Sciences. 



R. M. Yerkes: Psychology in relation to the war. 



C. E. McClung: The Division of Agriculture, Bot- 

 any, Forestry, Zoology and Fisheries. 



G. H. Clevenger: The Division of Engineering. 



SCIENCE 



A Weekly Journal devoted tx> the Advancement of 



Science, publishing the official notices and pre 



ceedings of the American Association for 



the Advancement of Science 



Published every Friday by . 



THE SCIENCE PRESS 



LANCASTER, PA. GARRISON. N. Y. 



NEW YORK, N. Y. 



Entered in the post-office at Lancaster. Pa., as second data matter 



