ORGANIZATION OF HYGIENIC LABORATORY. 
Walter Wyaian, Surgeon- General, 
U. S. Public Health and Marine-Hospital Service. 
ADVISORY BOARD. 
, U. S. Army; Surgeon John F. Urie, U. S. Navy; D. E. Salmon, Chief 
of U. S. Bureau of Animal Industry; and Milton J. Kosenau, U. S. Public Health and 
Marine-Hospital Service, ex officio. 
Prof. William H. AVelch, Prof. Simon Flexner, Prof. Victor C. Vaughan, Prof. 
William T. Sedgwick, and Prof. Frank F. Wesbrook. 
LABORATORY CORPS. 
Director. — P. A. Surg. INlilton J. Rosenau. 
Assistant Director. — Asst. Surg. John F. Anderson. 
Pharmacist. — M. H. Watters, Ph. G. 
DIVISION OF PATHOLOGY' AND BACTERIOLOGY. 
Chief of Division. — P. A. Surg. Milton J. Rosenau. 
Assistants. — Asst. Surgs. John F. Anderson, Herman B. Parker, Edward Francis 
Thomas B. McClintic, and Clarence W. Wille. 
DIVISION OF ZOOLOGY’. 
Chief of Division. — Ch. Wardell Stiles, Ph. D. 
A.ssistants. — Phillip E. Garrison, A. B.; Brayton H. Ransom, B. Sc., M. A.; Earle 
C. Stevenson, B. Sc. ; Arthur L. Murray. 
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