REPORT OF THE ANNUAL MEETING 
491 
S. J. Meltzer and M. Wollstein: The influenze of degeneration of a vagus nerve upon 
the development of pneumonia, f 
Demonstration of war research problems at the National Bureau of Standards. 
Edwin H. Hall: The effect of great pressure on the electric conductivity and thermo- 
electric properties of metals. 
Edwin H. Hall: Comments on the results of Bridgman's experiment. 
Charles Lane Poor (introduced by J. S. Ames) : Line of position computer. 
Irving Langmuir: The arrangement of electrons in atoms and molecules, f 252-259. 
Henry F. Osborn: Palaeomastodon, the ancestor of the long- jawed mastodons only.f 
265-266. 
Henry F. Osborn: Seventeen skeletons of Moropus: probable habits of this animal. f 
250-252. 
Thomas B. Osborne and Alfred J. Wakeman: The preparation of vitamine-green 
proteins. 
Arthur G. Webster: Quantitative results in interior ballistics. f 259-263. 
Arthur G. Webster: Quantitative results in elastic hysteresis. 
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 once more. 
A. O. Leuschuer and Sophia H. Levy: Perturbations of minor plants discovered by James 
C. Watson: (104) Clymene, (106) Dione, (168) Sibylla, (175) Andromache. (By title.) 
Arthur G. Webster: The most perfect tuning fork. 
Arthur G. Webster: Angle of repose of wet sand.f 263-265. 
Arthur G. Webster (By title): On the equation of state of powder gases whose 
specific heats satisfy the law of Mallard and Le Chatelier.f 286-288. 
C. C. Trowbridge: Meteor train spectra. 
Edward Kasner: Geometry of the wave equation. 
C. G. Abbot: Rotating projectiles from smooth-bore guns (illustrated).t 386-388. 
C. G. Abbot: Means for measuring the speed of projectiles in flight (illustrated).t 388- 
389. 
C. G. Abbot: Recent simultaneous measurements of the solar constant of radiation at 
Mount Wilson, California, and Calama, Chile (illustrated). t 383-386. 
John C. Merriam: Human remains from the Pleistocene of Rancho La Brea (illustrated). 
One public session of the Academy with the National Research Council 
was held on April 30 at which the following papers were presented: 
George E. Hale: The past work and future plans of the National Research Council. 
John C. Merriam: The Division of General Relations, Section on Relations with Educa- 
tional Institutions and State Committees. 
R. A. Millikan: The Division of Physics, Mathematics, Astronomy and Geophysics. 
Dayton C. Miller: Pressures and velocities, internal 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. 
R. G. Hussey: The Division of Medicine and Related Sciences. 
R. M. Yerkes: Psychology in relation to the war. 
C. E. McClung: The Division of Agriculture, Botany, Forestry, Zoology and Fisheries. 
G. H. Clevenger: The Division of Engineering. 
