BUREAU OF MINES.

R. B. Moore, chief chemist and chief, division of mineral technology, United States Bureau of Mines, Washington, D. C.

BUREAU OF CHEMISTRY.

F. P. Veitch, chemist in charge of leather and paper laboratory, United States Bureau of Chemistry, Washington, D. C.

BUREAU OF STANDARDS.

George K. Burgess, chief, metallurgical division, United States Bureau of Standards, Washington, D. C.

MEMBERS AT LARGE.

William H. Bassett, technical superintendent and metallurgist, American Brass Co., Waterbury, Conn.

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

W. A. Hamor, assistant director, Mellon Institute, Pittsburgh, Pa.

H. E. Howe, National Research Council, Washington, D. C.

John Johnston, Sterling professor of chemistry, Yale University, New Haven, Conn.

C. E. K. Mees, director of development and research, Eastman Kodak Co., Rochester, N. Y.

A. R. Pierce, Pierce Manufacturing Co., New Bedford, Mass.

Walter Rautenstrauch, professor of mechanical engineering, Columbia University, New York City.

F. K. Richtmyer, professor of physics, Cornell University, Ithaca, N. Y.

George C. Stone, chief metallurgist, New Jersey Zinc Co., 160 Front Street, New York City.

E. W. Washburn, professor of ceramic chemistry and head of the department of ceramic engineering, University of Illinois, Urbana, Ill.

COMMITTEES.

Advisory Committee on Alloys Research: Chairman, W. M. Corse.

Advisory Committee on Glass Research: Chairman, George W. Morey, assistant physical chemist, geophysical laboratory, Carnegie Institution of Washington, Washington, D. C.

Committee on Corrosion: Chairman, W. M. Corse.

RESEARCH INFORMATION SERVICE,

Chairman, Robert M. Yerkes.

Vice chairman, Edwin F. Gay.

Scientific associates, Harold C. Bingham, Walter Graham, H. P. Little, Jacob R. Schramm, W. E. Tisdale, Clarence J. West.

EXECUTIVE COMMITTEE.

Chairman, Robert M. Yerkes; vice chairman, Edwin F. Gay; Alfred D. Flinn, H. G. Gale, Lieut. Col. W. B. Graham, L. R. Jones, Charles L. Reese.

MEMBERS OF THE DIVISION.

EX OFFICIO.

Chairman of the executive board of the National Research Council and chairman of all divisions.

DEPARTMENT OF STATE.

Prentiss G. Gilbert, Chief, Division of Political and Economic Information, United States Department of State, Washington, D. C.

DEPARTMENT OF THE TREASURY.

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

DEPARTMENT OF WAR.

Lieut. Col. W. B. Graham, Military Intelligence Division, United States Army, Washington, D. C.

DEPARTMENT OF JUSTICE.

Frank Burke, Chief, United States Bureau of Investigation, Washington, D. C.

POST OFFICE DEPARTMENT.

Joseph Stewart, special assistant to the Attorney General, United States Post Office Department, Washington, D. C.

DEPARTMENT OF THE NAVY.

Rear Admiral William S. Smith, special aide to the Secretary, United States Navy, Washington, D. C.

DEPARTMENT OF THE INTERIOR.

Thomas T. Read, Chief, Information Service, United States Bureau of Mines, Washington, D. C.

DEPARTMENT OF AGRICULTURE.

E. D. Ball, director of scientific work, Department of Agriculture, Washington, D. C.

DEPARTMENT OF COMMERCE.

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

DEPARTMENT OF LABOR.

Ethelbert Stewart, Commissioner, United States Bureau of Labor Statistics, Washington, D. C.

MEMBERS AT LARGE.

Clement W. Andrews, librarian, John Crerar Library, Chicago, Ill.

Albert V. Bleininger, Homer Laughlin China Co., Newell, W. Va.
Fuller E. Callaway, cotton manufacturer, Lagrange, Ga.

Harrison W. Craver, director, Engineering Societies Library, 29 West Thirty-ninth Street, New York City.

W. R. DeField, management engineer, Sixteenth and Chestnut Streets, Philadelphia, Pa.

Alfred D. Flinn, secretary, Engineering Foundation; chairman, division of engineering, National Research Council, 29 West Thirty-ninth Street, New York City.

Brig. Gen. A. A. Fries, Chief, Chemical Warfare Service, United States Army, Washington, D. C.

Francis P. Garvan, president, Chemical Foundation, 115 Broadway, New York City.

Edwin F. Gay, president, New York Evening Post (Inc.), New York City.
William C. Geer, vice president, B. F. Goodrich Co., Akron, Ohio.

Milton J. Greenman, director, Wistar Institute of Anatomy and Biology, Philadelphia, Pa.

Dorsey W. Hyde, jr., assistant manager, civic development department, Chamber of Commerce, United States Army, Washington, D. C.

Charles F. Kettering, president, General Motors Research Corporation, Dayton, Ohio.

Arthur D. Little, president, Arthur D. Little (Inc.), Cambridge Mass.

Van H. Manning, director, division of research, American Petroleum Institute, 15 West Forty-fourth Street, New York City.

Charles L. Parsons, secretary, American Chemical Society, 1709 G Street, Washington, D. C.

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

Charles L. Reese, chemical director, E. I. du Pont de Nemours & Co., Wilmington, Del.

F. W. Robinson, president, Chemical Catalogue Co. (Inc.), 1 Madison Avenue, New York City.

M. C. Rorty, assistant vice president, American Telephone & Telegraph Co., 195 Broadway, New York City.

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

C. P. Townsend, chairman, research committee, Union Carbide & Carbon Corporation, 30 East Forty-second Street, New York City.

M. C. Whitaker, consulting engineer, 27 William Street, New York City.

Chairman, H. G. Gale.

DIVISION OF PHYSICAL SCIENCES.

Vice chairman, William Duane.

Executive secretary, W. E. Tisdale.

EXECUTIVE COMMITTEE.

Chairman, H. G. Gale; vice chairman, William Duane; R. A. Millikan, Augustus Trowbridge, Oswald Veblen, John Zeleny.

MEMBERS OF THE DIVISION.

H. G. Gale, professor of physics, University of Chicago, Chicago, Ill.

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

AMERICAN ASTRONOMICAL SOCIETY.

W. W. Campbell, director, Lick Observatory, University of California, 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.

Theodore Lyman, professor of physics, Harvard University, Cambridge, Mass. Ernest Merritt, professor of physics and head of the department of physics, Cornell University, Ithaca, N. Y.

R. A. Millikan, director, Norman Bridge Laboratory of Physics, California Institute of Technology, Pasadena, Calif.

W. F. G. Swann, professor of physics, University of Minnesota, Minneapolis, Minn. E. B. Wilson, professor of mathematical physics in charge of the department of physics, Masschusetts Institute of Technology, Cambridge, Mass.

John Zeleny, professor of physics and head of the department of physics, Yale University, New Haven, Conn.

AMERICAN MATHEMATICAL SOCIETY.

L. E. Dickson, professor of mathematics, University of Chicago, Chicago, Ill.
E. B. Van Vleck, professor of mathematics, University of Wisconsin, Madison, Wis.
Oswald Veblen, professor of mathematics, Princeton University, Princeton, N. J.

MATHEMATICAL ASSOCIATION OF AMERICA.

E. R. Hedrick, professor of mathematics, University of Missouri, Columbia, Mo.

REPRESENTATIVE OF THE DIVISION OF FEDERAL RELATIONS.

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

MEMBERS AT LARGE.

Louis A. Bauer, director, department of terrestrial magnetism, Carnegie Institution of Washington, Washington, D. C.

G. D. Birkhoff, professor of mathematics, Harvard University, Cambridge, Mass. Henry Crew, Fayerweather professor of physics, Northwestern University, Evanston, Ill.

C. F. Marvin, Chief, United States Weather Bureau, Washington, D. C.

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

E. F. Nichols, Nela research laboratory, National Lamp Works, General Electric Co., Cleveland, Ohio.

M. I. Pupin, professor of electromechanics, Columbia University, New York City. G. W. Stewart, professor of physics and head of the department of physics, University of Iowa, Iowa City, Iowa.

S. W. Stratton, Director, United States Bureau of Standards, Washington, D. C. Augustus Trowbridge, professor of physics, Princeton University, Princeton, N. J.

COMMITTEES.

American section, International Astronomical Union: Chairman, W. W. Campbell. American section, International Mathematical Union: Chairman, L. E. Dickson. American section, International Union of Scientific Radio Telegraphy (organized jointly with the division of engineering): Chairman, Louis W. Austin, head of United States Naval Radio Research Laboratory, Washington, D. C.

Committee on algebraic numbers: Chairman, L. E. Dickson.

Committee on atomic structure: Chairman, F. A. Saunders, associate professor of physics, Harvard University, Cambridge, Mass.

Committee on celestial mechanics: Chairman, E. W. Brown, professor of mathematics, Yale University, New Haven, Conn.

Committee on electrodynamics of moving media: Chairman, J. S. Ames, professor of physics and director physical laboratory, Johns Hopkins University, Baltimore, Md. Committee on luminescence: Chairman, Ernest Merritt.

Committee on mathematical abstracts: Chairman, L. E. Dickson.

Committee on mathematical analysis of statistics: Chairman, H. L. Rietz, professor of mathematics and head of the department of mathematics, University of Iowa, Iowa City, Iowa.

Committee on orbit theory: Chairman, A. O. Leuschner, professor of astronomy and director, students' observatory, University of California, Berkeley, Calif.

Committee on parallaxes: Chairman, Frank Schlesinger, director, Yale University observatory, New Haven, Conn.

Committee on photo-electric effects: Chairman, R. A. Millikan.

Committee on physiological optics: Chairman, F. K. Richtmyer, professor of physics, Cornell University, Ithaca, N. Y.

Committee on research methods and technique: Chairman, H. B. Williams, assistant professor of physiology, College of Physicians and Surgeons, Columbia University, New York City.

Committee on quantum theory: Chairman, Max Mason.

Committee on revolving fund: Chairman, Oswald Veblen.

Committee on relation of elementary physics teaching to research: Chairman, H. G. Gale.

Committee on acoustics: Chairman, G. W. Stewart.

Committee on spectroscopy, eastern branch: Chairman of general committee and of eastern branch, Theodore Lyman.

Western branch: Vice chairman of general committee and chairman of western branch, C. E. St. John, Mount Wilson Observatory, Carnegie Institution of Washington, Pasadena, Calif.

Committee on theories of magnetism: Chairman, A. P. Wills, professor of mathematical physics, Columbia University, New York City.

Committee on thermo and magneto electric effects: Chairman, Edwin H. Hall, professor of physics, Harvard University, Cambridge, Mass.

Committee on X-ray spectra: Chairman, William Duane, professor of bio-physics, Harvard University, Cambridge, Mass.

Committee on enlargement of functions of International Bureau of Weights and Measures: Chairman, S. W. Stratton.

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

Committee on utilization of United States Bureau of Standards facilities: Chairman, H. G. Gale.

DIVISION OF ENGINEERING.

(Engineering Societies Building, 29 West Thirty-ninth Street, New York City.)

Chairman, Alfred D. Flinn.

Vice chairman, Galen H. Clevenger.

Secretary, William Spraragen.

EXECUTIVE COMMITTEE.

Chairman, Alfred D. Flinn; vice chairman, Galen H. Clevenger; Comfort A. Adams, F. G. Cottrell, D. S. Jacobus, H. Hobart Porter, Bradley Stoughton.

MEMBERS OF THE DIVISION.

Alfred D. Flinn, secretary, Engineering Foundation, 29 West Thirty-ninth Street, New York City.

AMERICAN SOCIETY OF CIVIL ENGINEERS.

Anson Marston, dean of the division of engineering, and director, Engineering Experiment Station, Iowa State College, Ames, Iowa.

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

George S. Webster, Delaware River Bridge Joint Commission, board of engineers, 1136 Widener Building, Philadelphia, Pa.

AMERICAN INSTITUTE OF MINING AND METALLURGICAL ENGINEERS.

Thomas Robins, president, Robins Conveying Belt Co., Park Row Building, New York City.

Allen H. Rogers, mining engineer, 42 Broadway, New York City.