ORGANIZATION OF HYGIENIC LABORATORY. 
Walter Wyman, Surgeon-General, 
United States Public Health and Marine-Hospital Service. 
ADVISORY BOARD. 
Major Walter D. McCaw, Surgeon, U. S. Army; Surgeon Charles F. Butler, 
U. S. Navy; Dr. A. D. Melvin, Chief of U. S. Bureau of Animal Industry, and 
John F. Anderson, U. S. Public Health and Marine-Hospital Service, ex officio. 
Prof. William H. Welch, Johns Hopkins University, Baltimore, Md. ; Prof. 
Simon Flexner, Rockefeller Institute for Medical Research, New York ; Prof. 
Victor C. Vaughan, University of Michigan, Ann Arbor, Mich. ; Prof. William T. 
Sedgwick, Massachusetts Institute of Technology, Boston, Mass. ; and Prof. 
Frank F. Wesbrook, University of Minnesota, Minneapolis, Minn. 
LABORATORY CORPS. 
Director. — Passed Assistant Surgeon John F. Anderson. 
Assistant director. — Passed Assistant Surgeon Edward Francis. 
On leave. — Surgeon M. J. Rosenau. 
Senior pharmacist. — L. C. Spangler, Ph. G. 
Junior pharmacist. — C. O. Sterns, Ph. G. 
Artist. — Leonard H. Wilder. 
Acting librarian. — E. B. K. Foltz. 
DIVISION OF PATHOLOGY AND BACTERIOLOGY. 
Chief of division. — Passed Assistant Surgeon John F. Anderson. 
Assistants. — Passed Assistant Surgeons Edward Francis, Claude H. Lavinder, 
L. L. Lumsden, Thomas B. McClintic, John D. Long. A. M. Stimson, Herbert M. 
Manning, W. H. Frost, and Walter D. Cannon, M. D. 
DIVISION OF ZOOLOGY. 
Chief of division. — Ch. Wardell Stiles, Ph. D. 
Assistants. — Passed Assistant Surgeon Joseph Goldberger ; Charles Crane, 
B. S. ; and G. F. Leonard, A. B. 
DIVISION OF PHARMACOLOGY. 
Chief of division. — Reid Hunt, Ph. D., M. D. 
Assistants. — Atherton Seidell, Ph. D. ; W. H. Schultz, Ph. D. ; Worth Hale, 
M. D.; Murray Galt Motter, A. M., M. D. ; and Martin I. Wilbert, Ph. M. 
DIVISION OF CHEMISTRY. 
Chief of division . — 
Assistants. — Passed Assistant Surgeon Norman Roberts and Elias Elvove, M. S. 
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