Professor of Physical Education, Columbia University.
H.M. LUFKIN, M.D.
Professor of Physical Diagnosis and Clinical Medicine, University of Minnesota.
OTTO FOLIN, Ph.D.
Special Investigator, McLean Hospital, Waverly, Mass.
T. MITCHELL PRUDDEN, M.D., LL.D.
Author "Dust and Its Dangers," "The Story of the Bacteria," "Drinking Water and Ice Supplies," etc.
FRANK CHOUTEAU BROWN
Architect, Boston, Mass.; Author of "The Five Orders of Architecture," "Letters and Lettering."
MRS. MELVIL DEWEY