ORGANIZATION OF HYGIENIC LABORATORY. 
Walter Wa'max, Surgeon-General. 
United States Public Health and Harine- Hospital Service. 
AD VIS ORA' BOARD. 
Major Walter D. McCa^v, Surgeon, IT. S. Army; Surgeon John F. F~rie, TJ. S. XaA’A’; 
Dr. A. D. Melvin. Chief of U. S. Bureau of Animal Industiy, and Milton J. Eosenau, 
U, S. Public Health and Marine-Hospital Service, e.v officio. 
Prof. William H. Welch, Johns Hopkins University, Baltimore, Md.; Prof. Simon 
Flexner, Eockefeller Institute for Medical Eesearch, Xev A^ork; 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, 
Umversity ot Minnesota, Minneapolis, Minn. 
LABORATORA^ CORPS. 
Director . — Passed Assistant Surgeon Milton J. Rosenau. 
Assistant director . — Passed Assistant Surgeon John F. Anderson. 
Pharmacist . — Frank J. Herty, Ph. G. 
Artist . — Leonard H. Wilder. 
Acting librarian. — E. B. K. Foltz. 
DIVISION OF PATHOLOGA’ AND B ACTERIOLOGA'. 
Chief of division . — Passed Assistant Surgeon Milton J. Rosenau. 
Assistants . — Passed Assistant Surgeons John F. Anderson, L. L. Lumsden, W, W. 
King, George W. McCoy, and Assistant Surgeon A. M. Stimson. 
DIVISION OF ZOOLOGA'. 
Chief of division. — Ch. Wardell Stiles, Ph. D. 
Assistants . — Passed Assistant Surgeon Joseph Goldberger, DaA'id G.Willets, B. S., and 
W. D. Cannon, M. D. 
DIVISION OF PHARMACOLOGA'. 
Chief of division . — Reid Hunt, Ph. D., M. D. 
Assistant . — Atherton Seideli, Ph. D. 
DIVISION OF CHE MISTRAL 
Chief of division . — Joseph H. Kastle, Ph. D. 
Assistants . — Assistant Surgeon Xorman Roberts, Harold L. Amoss, B. S., and 
James S. McHargue, B. S, 
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