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 John F. Urie, U. S. Npvy; 
Dr. D. E. Salmon, Chief of U. S. Bureau of Animal Industry; and Milton J. Eosenau, 
U. S. Public Health and Marine-Hospital Service, ex officio. 
Prof. William H. Welch, Prof. Simon Flexner, Prof. Victor C. Vaughan, Prof. 
William T. Sedgwick, and Prof. Frank F, Wesbrook. 
LABORATORY CORPS. 
Director. — Passed Assistant Surgeon Milton J. Rosenau. 
Assistant director. — Passed Assistant Surgeon John F. Anderson. 
Pharmacist. — Frank A. Southard, Ph. G. 
DIVISION OF PATHOLOGY AND BACTERIOLOGY. 
Chief of division. — Passed Assistant Surgeon Milton J. Rosenau. 
Assistants. — Passed Assistant Surgeon John F. Anderson, Surgeon Duncan A. 
Carmichael, Passed Assistant Surgeon James C. Perry, and Assistant Surgeon 
Thomas B. McClintic. 
DIVISION OF ZOOLOGY. 
Chief of division. — Ch. Warded Stiles, Ph. D. 
Assistants. — Philip E. Garrison, A. B. ; David G. Willets, Ph. B. ; Arthur L. Mur- 
ray; William F. Hemler. 
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