WILLIAM H. TOLMAN, Director The American Museum of Safety. #Mouth Hygiene# W. G. EBERSOLE, M.D., D.D.S., Secretary-Treasurer, The National Mouth Hygiene Association. ALFRED C. FONES, D.D.S., Chairman Dental Committee, Bridgeport Board of Health. #Physical Training# WM. G. ANDERSON, M.D., Director Gymnasium, Yale University. GEORGE J. FISHER, M.D., Secretary International Committee, Y. M. C. A. R. TAIT MCKENZIE, M.D., Professor of Physical Education and Director of the Department, University of Pennsylvania. EDWARD A. RUMELY, M.D., President The Interlaken School. DUDLEY A. SARGENT, M.D., Director Gymnasium, Harvard University. PROF. ALONZO A. STAGG, Director Gymnasium, University of Chicago. THOMAS A. STOREY, M.D., Professor of Hygiene, College of the City of New York. #Foreign Advisory Board# AUSTRIA LUDWIG TELEKY, M.D., Department of Social Medicine, Vienna University. CANADA JOHN GEORGE ADAMI, M.D., Professor of Pathology and Bacteriology, McGill University, Montreal. ENGLAND SIR THOMAS OLIVER, Professor of Physiology, Durham University. FRANCE ARMAND GAUTIER, M.D., Professor of Chemistry, Faculty of Medicine, Paris. GERMANY PROF. DR. KARL FLÜGGE, Director Hygienic Institute, Berlin. ITALY LEONARDO BIANCHI, Professor of Psychiatry, University of Naples. JAPAN PROF. DR. S. KITASATO, Chief of the Kitasato Institute for Infectious Diseases, Tokyo. RUSSIA IVAN PETROVIC PAVLOV, Prof. of Physiology, Imperial Military Academy of Medicine, Petrograd. PORTRAITS OF MEMBERS OF THE HYGIENE REFERENCE BOARD [Illustration: Dr. Lewellys F. Barker] [Illustration: Dr. John F. Anderson] [Illustration: Dr. Hermann M. Biggs] [Illustration: Dr. Alexander Graham Bell] [Illustration: Dr. William G. Anderson] [Illustration: Dr. John B. Andrews] [Illustration: Samuel Hopkins Adams] [Illustration: Prof. W. H. Burnham] [Illustration: Prof. Russell H. Chittenden] [Illustration: Dr. George W. Crile] [Illustration: Dr. Rupert Blue] [Illustration: Dr. Chas. H. Castle] [Illustration: Dr. George Blumer] [Illustration: Mrs. S. S. Crockett] [Illustration: Dr. Samuel G. Dixon] [Illustration: Prof. Henry W. Farnam] [Illustration: Dr. W. A. Evans] [Illustration: Dr. C. B. Davenport] [Illustration: Dr. W. G. Ebersole] [Illustration: Dr. Norman E. Ditman] [Illustration: Dr. Oscar Dowling] [Illustration: Dr. Eugene L. Fisk] [Illustration: Dr. Otto Folin] [Illustration: Dr. George J. Fisher] [Illustration: Prof. Irving Fisher] [Illustration: Dr. Alfred C. Fones] [Illustration: Dr. Burnside Foster] [Illustration: Dr. Henry B. Favill] [Illustration: Dr. Luther H. Gulick] [Illustration: Mr. Norman Hapgood] [Illustration: Mr. Lee K. Frankel] [Illustration: Gen. Wm. C. Gorgas] [Illustration: Dr. Frederick R. Green] [Illustration: Dr. S. S. Goldwater] [Illustration: Dr. John S. Fulton] [Illustration: Dr. J. H. Kellogg]