.A /S' 
ORGANIZATION OF HYGIENIC LABORATORY. 
Walter Wyman, Surgeon- General, 
United States Public Health and Marine- Hospital Service. 
ADVISORY' BOARD. 
, U. S. Army; Surgeon John F. Urie, U. S. Xavy; 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. M'illiam H. Welch, Prof. Simon Flexner, Prof. Victor C. Vaughan, Prof. 
'William T. Sedgwick, and Prof. Frank F. "Wesbrook. 
LABORATOEA^ CORPS. 
Director . — Passed Assistant Surgeon Milton J. Eosenau. 
Assistant director . — Passed Assistant Surgeon John F. Anderson. 
Pharmacist. — M. H. Watters, Ph. G. 
DIVISION OF PATHOLOGY AND BACTERIOLOGY'. 
Chief of division . — Passed Assistant Surgeon Milton J. Eosenau. 
Assistants . — Passed Assistant Surgeons John F. Anderson and Assistant Surgeons 
Thomas B. McClintic, Clarence W. Wille. 
DIVISION OF ZOOLOGY'. 
Chief of division. — Ch. Wardell Stiles, Ph. D. 
Assistants . — Philip E. Garrison, A. B. ; Brayton H. Ransom, B. Sc., M. A.; Earle 
C. Stevenson, B. Sc. ; Arthur L. Murray. 
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