James R. Angell, chairman National Research Council; dean of the faculties of arts, literature, and science, and head of the department of psychology, University of Chicago, Chicago, Ill.

C. D. Walcott, chairman Government division; secretary Smithsonian Institution; president National Academy of Sciences, Washington, D. C. George E. Hale, chairman division of foreign relations; director Mount Wilson Observatory, Carnegie Institution of Washington, Pasadena, Calif. John C. Merriam, chairman division of States relations; professor of paleontology and historical geology, University of California, Berkeley, Calif. Vernon Kellogg, chairman division of educational relations; professor of entomology and lecturer in bionomics, Leland Stanford Junior University, Stanford University, Calif.

John Johnston, chairman division of research extension; professor of chemistry, Yale University, New Haven, Conn.

R. M. Yerkes, chairman research information service, National Research Council, Washington, D. C.

C. E. Mendenhall, chairman division of physical sciences; professor of physics, University of Wisconsin, Madison, Wis.

C. A. Adams, chairman division of engineering; past president American Institute of Electrical Engineers; Lawrence professor of engineering, Harvard University, Cambridge, Mass.

W. D. Bancroft, chairman division of chemistry and chemical technology; professor of physical chemistry, Cornell University, Ithaca, N. Y.

E. B. Mathews, chairman division of geology and geography; professor of mineralogy and petrography, Johns Hopkins University; State geologist of Maryland; director State weather service, Baltimore, Md.

H. A. Christian, chairman division of medical sciences; Hersey professor of the theory and practice of physic, Harvard University; physician in chief Peter Bent Brigham Hospital, Boston, Mass.

C. E. McClung, chairman division of biology and agriculture; professor of zoology, and director of zoological laboratory, University of Pennsylvania, Philadelphia, Pa.

W. V. Bingham, chairman division of anthropology and psychology; professor of psychology, and head of the division of applied psychology, Carnegie Institute of Technology, Pittsburgh, Pa.

REPRESENTATIVES OF GOVERNMENT DEPARTMENTS.

DEPARTMENT OF STATE.

Wesley C. Frost, assistant acting foreign trade adviser.

DEPARTMENT OF TREASURY.

J. W. Schereschewsky, United States Public Health Service, Assistant Sur geon General, Washington, D. C.

DEPARTMENT OF WAR.

Brig. Gen. Marlborough Churchill. Director of Military Intelligence, Military Intelligence Branch, General Staff, Washington, D. C.

DEPARTMENT OF JUSTICE.

Frank Burke, Chief of the Bureau of Investigation.

POST OFFICE DEPARTMENT.

Joseph Stewart, special assistant to the Attorney General, Washington, D. C.

DEPARTMENT OF THE NAVY.

Rear Admiral Albert P. Niblack, Director Naval Intelligence, Naval Intelligence Office, Washington, D. C.

DEPARTMENT OF THE INTERIOR.

Van H. Manning. Director United States Bureau of Mines, Washington, D. C.

DEPARTMENT OF AGRICULTURE.

Carl L. Alsberg, Chief Bureau of Chemistry, Washington, D. C.

DEPARTMENT OF COMMERCE.

S. W. Stratton, Director United States Bureau of Standards, Washington, D. C.

DEPARTMENT OF LABOR.

Royal Meeker, United States Commissioner of Labor Statistics, Washington, D. C.

MEMBERS AT LARGE.

Clement W. Andrews, librarian the John Crerar Library, Chicago, Ill. Fuller E. Callaway, cotton financier and manufacturer, Lagrange, Ga. W. R. DeField, management engineer, 208 La Salle Street, Chicago, Ill. Edwin F. Gay, managing editor New York Evening Post, New York City. Milton J. Greenman, director Wistar Institute of Anatomy and Biology, Philadelphia, Pa.

Charles F. Kettering, president the Dayton Engineering Laboratories Co., Dayton, Ohio.

Arthur D. Little, president Arthur D. Little (Inc.) Industrial Research Laboratories, 30 Charles River Road, Cambridge, Mass.

Raymond Pearl, professor of biometry and vital statistics, the Johns Hopkins University, Baltimore, Md.

F. S. Terry, manager National Lamp Works of the General Electric Co., Nela Park, Cleveland, Ohio.

Milton C. Whitaker, consulting chemical engineer, New York City.

B. DIVISIONS OF SCIENCE AND TECHNOLOGY.

VII. DIVISION OF PHYSICAL SCIENCES.

Chairman, C. E. Mendenhall.

Vice chairman, Augustus Trowbridge.

166503°-20-S. Doc. 238, 66–2– -8

C. E. Mendenhall, professor of physics, University of Wisconsin, Madison, Wis.

REPRESENTATIVES OF SOCIETIES.

AMERICAN ASTRONOMICAL SOCIETY.

W. W. Campbell, director Lick Observatory, Mount Hamilton, Calif.

H. N. Russell, professor of astronomy, Princeton University, Princeton, N. J. Joel Stebbins, professor of astronomy University of Illinois, Urbana, Ill.

AMERICAN PHYSICAL SOCIETY.

H. A. Bumstead, professor of physics and director of the Sloane Physical Laboratory, Yale University, New Haven, Conn.

William Duane, professor of biophysics, Harvard University Medical School, Boston, Mass.

Irving Langmuir, research laboratory General Electric Co., Schenectady, N. Y.

Ernest G. Merritt, professor of physics, Cornell University, Ithaca, N. Y. R. A. Millikan, professor of physics, University of Chicago, Chicago, Ill. E. B. Wilson, professor of mathematical physics in charge of department of physics, Massachusetts Institute of Technology, Cambridge, Mass.

AMERICAN MATHEMATICAL SOCIETY.

E. W. Brown, professor of mathematics, Yale University, New Haven, Conn. L. E. Dickson, professor of mathematics, University of Chicago, Chicago, Ill. H. S. White, professor of mathematics, Vassar College, Poughkeepsie, N. Y.

MEMBERS AT LARGE.

J. S. Ames, professor of physics, director of physical laboratory, Johns Hopkins University, Baltimore, Md.

L. A. Bauer, director department of research in terrestrial magnetism. Carnegie Institution of Washington, Washington, D. C.

William Bowie, Chief Division of Geodesy, United States Coast and Geodetic Survey, Washington, D. C.

Henry Crew, professor of physics, Northwestern University, Evanston, Ill. C. F. Marvin, chief United States Weather Bureau, Department of Agriculture, Washington, D. C.

Max Mason, professor of mathematical physics, University of Wisconsin, Madison, Wis.

M. I Pupin, professor of electromechanics, Columbia University, New York City.

S. W. Stratton, Director United States Bureau of Standards, Washington, D. C.

A. Trowbridge, professor of physics, Princeton University, Princeton, N. J. A representative of the Government division.

LIST OF COMMITTEES.

1. American section of the International Astronomical Union: Chairman, W. W. Campbell, director Lick Observatory, Mount Hamilton, Calif.

2. American section of the International Geophysical Union: Chairman, William Bowie, Chief of the Division of Geodesy, United States Coast and Geodetic Survey, Washington, D. C.

3. Committee on enlargement of the functions of the International Bureau of Weights and Measures: Chairman, S. W. Stratton, Director United States Bureau of Standards, Washington, D. C.

Subcommittee on wave-length standard for a unit of length: Chairman, A. A. Michelson, professor of physics and head of the department of physics, University of Chicago, Chicago, Ill.

4. Committee on abstracts, bibliographies, and monographs: Chairman, J. S. Ames, professor of physics, Johns Hopkins University, Baltimore, Md.

5. Committees on physical research. (These committees are now being organized.)

Anson Marston, dean, and director of engineering department. Iowa State College, Ames, Iowa.

H. H. Porter, president, American Water Works & Electric Co., 50 Broad Street, New York City.

George S. Webster, director, department of wharves, docks, and ferries, Bourse Building, Philadelphia, Pa.

AMERICAN INSTITUTE OF MINING AND METALLURGICAL ENGINEERS.

Hennen Jennings, consulting engineer, United States Bureau of Mines, Washington, D. C.

Phillip N. Moore, consulting engineer, United States Bureau of Mines, 611 Merchants-Laclede Building, St. Louis, Mo.

Joseph W. Richards, professor of metallurgy, Lehigh University, South Bethlehem, Pa.

AMERICAN SOCIETY OF MECHANICAL ENGINEERS.

Arthur M. Greene, professor of mechanical engineering, Rensselaer Polytechnic Institute, Troy, N. Y.

W. F. M. Goss, past president of the American Society of Mechanical Engi neers, president Railway Car Manufacturers' Association, 61 Broadway, New York City.

D. S. Jacobus, head of engineering department, Babcock & Wilcox, 85 Liberty Street, New York City.

AMERICAN INSTITUTE OF ELECTRICAL ENGINEERS.

Comfort A. Adams, past president American Institute of Electrical Engineers, Lawrence professor of engineering, Harvard University, Cambridge, Mass. F. B. Jewett, chief engineer, Western Electric Co., 463 West Street, New York City.

W. R. Whitney, director of research laboratory, General Electric Co., Schenectady, N. Y.

AMERICAN SOCIETY FOR TESTING MATERIALS.

A. A. Stevenson, vice president Standard Steel Works Co., Philadelphia, Pa.

ILLUMINATING ENGINEERING SOCIETY.

Edward P. Hyde, director Nela Research Laboratory, Nela Park, Cleveland. Ohio.

WESTERN SOCIETY OF ENGINEERS,

Arthur N. Talbot, past president American Society of Civil Engineers, professor of engineering, University of Illinois, Urbana, Ill.

SOCIETY OF AUTOMOTIVE ENGINEERS.

Charles F. Kettering, president the Dayton Engineering Laboratories Co., Dayton, Ohio.

MEMBERS AT LARGE.

E. D. Adams, fellow American Society of Civil Engineers; member American Institute of Electrical Engineers, 71 Broadway, New York City.

J. J. Carty, vice president American Telephone & Telegraph Co., 195 Broadway, New York City.

Galen H. Clevenger, consulting metallurgist, 29 West Thirty-ninth Street, New York City.

Gano Dunn, president the J. G. White Engineering Corporation, 43 Exchange Place, New York City.

Henry M. Howe, professor emeritus of metallurgy of Columbia University, Bedford Hills, N. Y.

Van H. Manning, director United States Bureau of Mines, Washington, D. C. Charles F. Rand, past president American Institute of Mining and Metallurgical Engineers, 71 Broadway, New York City.

E. G. Spilsbury, vice president Engineering Foundation, 29 Broadway, New York City.

Bradley Stoughton, secretary American Institute of Mining and Metallurgical Engineers, 29 West Thirty-ninth Street, New York City.

S. W. Stratton, Director United States Bureau of Standards, Washington, D. C.

Ambrose Swasey, manufacturer of machine tools and astronomical instruments. Warner-Swasey Co., Cleveland, Ohio.

William R. Walker, assistant to the president United States Steel Corporation, 71 Broadway, New York City.

A representative of the Government division.