ORGANIZATION OF HYGIENIC LABORATORY. 
Walter Wyman , Surgeon-General, 
United States Public Health and Marine- Hospital Service. 
ADVISORY BOARD. 
Lieut. -Col. Walter D. McCaw, Surgeon, U. S. Army; Surgeon Charles S. 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 Milton J. Rosenau. 
Senior pharmacist. — L. C. Spangler, Ph. G. 
Junior pharmacist. — C. 0. Sterns, Ph. G. 
Artist. — Leonard H. Wilder. 
Acting librarian. — E. B. K. Foltz. 
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DIVISION OF PATHOLOGY AND BACTERIOLOGY. 
Chief of division . — Passed Assistant Surgeon John F. Anderson. 
Assistants. — Passed Assistant Surgeons Claude H. Lavinder, Leslie L. Lumsden, 
T. B. McClintic, Herbert M. Manning, A. M. Stimson, W. H. Frost, J. D. Long, and 
Walter D. Cannon, M. D. 
DIVISION OF ZOOLOGY. 
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Chief of division . — Ch. Wardell Stiles, Ph. D. 
Assistants. — Passed Assistant Surgeon Joseph Goldberger, Charles G. Crane, B. S., 
and George 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, A. B., 
M. D., Murray Galt Motter, A. M., M. D., and M. I. Wilbert, Ph. M. 
DIVISION OF CHEMISTRY. 
Chief of division. — Joseph II. Kastle, Ph. D. 
Assistants. — Passed Assistant Surgeon Norman Roberts and Elias Elvove, M. S. 
