PALEONTOLOGICAL SOCIETY.

T. Wayland Vaughan, chief, section of coastal plains investigations, United States Geological Survey, Washington, D. C.

Gilbert Grosvenor, president, National Geographic Society, Washington, D. C.

SOCIETY OF ECONOMIC GEOLOGISTS.

F. L. Ransome, geologist in charge, section of metalliferous deposits, United States Geological Survey, Washington, D. C.

Horace V. Winchell, consulting mining engineer and geologist, 1116 Pacific Mutual Building, Los Angeles, Calif.

DIVISION OF FEDERAL RELATIONS.

George Otis Smith, director, United States Geological Survey, Washington, D. C.

MEMBERS AT LARGE.

Ralph Arnold, consulting geologist, 639 South Spring Street, Los Angeles, Calif. Eliot Blackwelder, consulting geologist, 317 Railway Exchange Building, Denver, Colo.

A. H. Brooks, geologist in charge, Division of Alaskan Mineral Resources, United States Geological Survey, Washington, D. C.

Arthur L. Day, director, geophysical laboratory, Carnegie Institution of Washington, Washington, D. C.

Ellsworth Huntington, research associate in geography, Yale University, New Haven, Conn.

Douglas W. Johnson, professor of physiography, Columbia University, New York City.

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

R. A. F. Penrose, jr., consulting geologist, 460 Bullitt Building, Philadelphia, Pa. David White, chief geologist, United States Geological Survey, Washington, D. C.

COMMITTEES.

Committee on Becker Memorial Fellowship: Chairman, John Hays Hammond, Washington, D. C.

Committee on financial resources: Chairman, Ralph Arnold.

Committee on development of geographical sciences: Chairman, N. M. Fenneman. Committee on sedimentation: Chairman, T. Wayland Vaughan.

REPRESENTATIVES OF THE DIVISION ON

Advisory Council of the United States Board of Surveys and Maps.-E. B. Mathews. DIVISION OF MEDICAL SCIENCES.

Chairman, V. C. Vaughan.

Vice chairman, Frederick P. Gay.

EXECUTIVE COMMITTEE.

Chairman, V. C. Vaughan; vice chairman, Frederick P. Gay; Henry A. Christian, W. H. Howell, Reid Hunt, Graham Lusk, G. W. McCoy.

MEMBERS OF THE DIVISION.

AMERICAN ASSOCIATION OF ANATOMISTS.

C. R. Stockard, professor of anatomy, Cornell University Medical College, New York City.

AMERICAN ASSOCIATION OF PATHOLOGISTS AND BACTERIOLOGISTS.

Howard T. Karsner, professor of pathology, Western Reserve University, Cleveland, Ohio.

AMERICAN NEUROLOGICAL ASSOCIATION.

Hugh T. Patrick, emeritus professor of neurology, Medical School, Northwestern University, Chicago, Ill.

AMERICAN PHYSIOLOGICAL SOCIETY.

W. H. Howell, assistant director, School of Hygiene and Public Health, and professor of physiology, Johns Hopkins University, Baltimore, Md.

AMERICAN MEDICAL ASSOCIATION.

R. T. Woodyatt, associate professor of medicine, Rush Medical College, Chicago, Ill.

AMERICAN ROENTGEN RAY SOCIETY.

Augustus W. Crane, 420 South Rose Street, Kalamazoo, Mich.

AMERICAN SOCIETY FOR CLINICAL INVESTIGATION.

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

AMERICAN SOCIETY FOR EXPERIMENTAL PATHOLOGY.

Peyton Rous, member in pathology and bacteriology, Rockefeller Institute for Medical Research, Sixty-sixth Street and Avenue A, New York City.

AMERICAN SOCIETY FOR PHARMACOLOGY AND EXPERIMENTAL THERAPEUTICS.

Reid Hunt, professor of pharmacology, Harvard University, Boston, Mass.

AMERICAN SOCIETY OF BIOLOGICAL CHEMISTS.

Graham Lusk, professor of physiology, Cornell University Medical College, New York City.

AMERICAN SURGICAL ASSOCIATION.

George W. Crile, professor of surgery, Western Reserve University, Cleveland, Ohio.

L. W. Goss, professor of veterinary pathology, veterinary college, Ohio State University, Columbus, Ohio.

ASSOCIATION OF AMERICAN PHYSICIANS.

W. S. Thayer, professor of clinical medicine, Johns Hopkins University, Baltimore, Md.

NATIONAL DENTAL ASSOCIATION.

Thomas B. Hartzell, professor of mouth infections, medical school, University of Minnesota, Minneapolis, Minn.

MEMBERS AT LARGE.

Lieut. Col. Charles F. Craig, Army Medical School, United States Army, Washington, D. C.

David L. Edsall, Jackson professor of clinical medicine and dean of the medical school, Harvard University; chief of medical service, Massachusetts General Hospital, Boston, Mass.

Joseph Erlanger, professor of physiology, school of medicine, Washington University, St. Louis, Mo.

Simon Flexner, director of research laboratories, Rockefeller Institute for Medical Research, Sixty-sixth Street and Avenue A, New York City.

Frederick P. Gay, professor of pathology, University of California, Berkeley, Cali G. Carl Huber, professor of anatomy and director anatomic laboratories, University of Michigan, Ann Arbor, Mich.

Allan J. McLaughlin, Assistant Surgeon General, United States Public Health Service, Washington, D. C.

R. M. Pearce, director, division of medical education, Rockefeller Foundation, 61 Broadway, New York City.

Rear Admiral Edward R. Stitt, Surgeon General and Chief, Bureau of Medicine and Surgery, United States Navy, Washington, D. C.

V. C. Vaughan, National Research Council, Washington, D. C.

William H. Welch, director, school of hygiene and public health, Johns Hopkins University, Baltimore, Md.

H. Gideon Wells, professor of pathology, University of Chicago; director, Otho S. A. Sprague Memorial Institute, Chicago, Ill.

A representative of the Division of Federal Relations.

COMMITTEES.

Committee on anatomy: Chairman, C. R. Stockard.

Committee on dental investigations: Chairman, Thomas B. Hartzell.

Committee on neurology and psychiatry: Chairman, Hugh T. Patrick.

Committee to formulate plans for the production of pure proteins and related materials for research purposes: Chairman, H. Gideon Wells.

Committee for research on problems of sex: Chairman, Robert M. Yerkes.

Committee on X-ray: Chairman, Augustus W. Crane.

DIVISION OF BIOLOGY AND AGRICULTURE.

Chairman, L. R. Jones.

Vice chairman, F. R. Lillie.

Executive secretary, J. R. Schramm.

EXECUTIVE COMMITTEE.

Chairman, L. R. Jones; vice chairman, F. R. Lillie; I. W. Bailey, C. E. McClung, J. R. Murlin, P. J. Parrott, Walter T. Swingle, A. F. Woods.

MEMBERS OF THE DIVISION.

AMERICAN SOCIETY OF AGRONOMY.

Charles V. Piper, agrostologist in charge forage crop investigations, United States Bureau of Plant Industry, Washington, D. C.

SOCIETY OF AMERICAN BACTERIOLOGISTS,

Samuel C. Prescott, professor of industrial biology, Massachusetts Institute of Technology, Cambridge, Mass.

BOTANICAL SOCIETY OF AMERICA.

H. H. Bartlett, associate professor of botany and director gardens and arboretum, University of Michigan, Ann Arbor, Mich.

R. A. Harper, Torrey professor of botany, Columbia University, New York City L. R. Jones, professor of plant pathology, University of Wisconsin, Madison, Wis.

AMERICAN ASSOCIATION OF ECONOMIC ENTOMOLOGISTS.

P. J. Parrott, entomologist New York Agricultural Experiment Station, Geneva, N. Y.

ECOLOGICAL SOCIETY OF AMERICA.

Ellsworth Huntington, research associate in geography, Yale University, New Haven, Conn.

SOCIETY OF AMERICAN FORESTERS.

Barrington Moore, editor, Ecology, 925 Park Avenue, New York City.

AMERICAN GENETIC ASSOCIATION.

G. N. Collins, botanist, United States Bureau of Plant Industry, Washington, D. C.

AMERICAN SOCIETY FOR HORTICULTURAL SCIENCE.

U. P. Hedrick, horticulturist, New York Agricultural Experiment Station, Geneva, N. Y.

AMERICAN PHYTOPATHOLOGICAL SOCIETY.

George R. Lyman, pathologist in charge, plant-disease survey, United States Bureau of Plant Industry, Washington, D. C.

AMERICAN SOCIETY OF ZOOLOGISTS.

F. R. Lillie, professor of embryology, University of Chicago, Chicago, Ill. G. H. Parker, professor of zoology, Harvard University, Cambridge, Mass. William Patten, professor of biology and chairman, department of biology, Dartmouth College, Hanover, N. H.

DIVISION OF FEDERAL RELATIONS.

Karl F. Kellerman, physiologist and associate chief, United States Bureau of Plant Industry, Washington, D. C.

MEMBERS AT LARGE.

I. W. Bailey, associate professor of forestry, Bussey Institution, Harvard University, Forest Hills, Mass.

H. E. Crampton, curator of invertebrate zoology, American Museum of Natural History, New York City.

Burton E. Livingston, professor of plant physiology and director, laboratory of plant physiology, Johns Hopkins University; permanent secretary, American Association for the Advancement of Science, Washington, D. C.

C. E. McClung, professor of zoology and director, zoological laboratory, University of Pennsylvania, Philadelphia, Pa.

C. F. Marbut, geologist in charge of soil survey, United States Bureau of Soils, Washington, D. C.

A. G. Mayor, director, department of marine biology, Carnegie Institution of Washington, Tortugas, Fla. (R. F. D. No. 1, Princeton, N. J.)

Henry F. Moore, deputy commissioner, United States Bureau of Fisheries, Washington, D. C.

J. R. Murlin, professor of physiology and director, department of vital economics, University of Rochester, Rochester, N. Y.

Walter T. Swingle, physiologist in charge crop physiology and breeding investigations, United States Bureau of Plant Industry, Washington, D. C.

A. F. Woods, president, University of Maryland, College Park, Md.

COMMITTEES.

Advisory board of the American Institute of Baking: Chairman, Harry E. Barnard, director, American Institute of Baking, 1135 Fullerton Avenue, Chicago, Ill.

Advisory committee of National Canners' Laboratory: Chairman, Wilder D. Bancroft, professor of physical chemistry, Cornell University, Ithaca, N. Y.

Committee on the atmosphere and man: Chairman, Ellsworth Huntington.

Subcommittee on experiments: Chairman, W. H. Howell, professor of physi ology and assistant director, School of Hygiene and Public Health, Johns Hopkins University, Baltimore, Md..

Subcommittee on industrial effects of the atmosphere: Chairman, Ellsworth Huntington.

Subcommittee on the atmosphere and mortality: Chairman, Ellsworth Hun

tington.

Committee on cooperation and coordination: Chairman, F. R. Lillie.

Committee on current problems: Chairman, G. N. Collins.

Committee on educational relations: Chairman, C. E. McClung.

Committee on the Farlow Index: George T. Moore, director, Missouri Botanical Garden, St. Louis, Mo.

Committee on fellowships: Chairman, M. F. Guyer, professor of zoology, University of Wisconsin, Madison, Wis.

Committee on fertilizers: Chairman, J. G. Lipman, director, New Jersey Agricultural Experiment Station, New Brunswick, N. J.

Subcommittee on physiological salt requirements of cultivated plants: Chairman, A. G. McCall, professor of geology and soils, University of Maryland, College Park, Md.

Committee on food and nutrition: Chairman, J. R. Murlin

Subcommittee on human nutrition: Chairman, H. C. Sherman, professor of food chemistry, Columbia University, New York City.

Subcommittee on animal nutrition: Chairman, E. B. Forbes, chief, department of nutrition, Ohio Agricultural Experiment Station, Wooster, Ohio. Committee on forestry: Chairman, Raphael Zon, forest economist, United States Forest Service, Washington, D. C.

Subcommittee on forest products; Chairman, O. M. Butler, forester, American Forestry Association, Washington, D. C.

Subcommittee on forest management: Chairman, H. H. Chapman, Harriman professor of forest management, Yale University, New Haven, Conn.

Subcommittee on forestry economics: Chairman, S. T. Dana, forest commissioner, Augusta, Me.

Subcommittee on silviculture: Chairman, T. S. Woolsey, jr., secretary-treas urer Connecticut Forestry Association, 242 Prospect Street, New Haven, Conn. Committee on marine biological laboratory: Chairman, F. R. Lillie. Committee on oceanography: Chairman, Henry F. Moore.

Committee on phytopathology (acting also as the committee of the American Phytopathological Society to cooperate with the division): Chairman, C. R. Orton, plaat pathologist, agricultural experiment station, Pennsylvania State College, State College, Pa.

Subcommittee on phytopathology in the tropics: Chairman, W. A. Orton, plant pathologist in charge of investigation of cotton, truck, and forage crop diseases, United States Department of Agriculture, Washington, D. C. Committee on biological relation of insects to flowers: Chairman, F. E. Lutz, curator of entomology, American Museum of Natural History, New York City. Committee on standardization of biological stains: Chairman, H. J. Conn, associate bacteriologist, New York Agricultural Experiment Station, Geneva, N. Y.

COMMITTEES OF SCIENTIFIC SOCIETIES IN COOPERATION WITH THE DIVISION.

American Society of Agronomy: Chairman, Charles V. Piper.

Subcommittee on soils: Chairman, C. F. Marbut.

Subcommittee on fertilizers: Chairman, J. G. Lipman, director, New Jersey Agricultural Experiment Station, New Brunswick, N. J.

Subcommittee on crops: Chairman, Charles V. Piper.