Note 19 — Chapter XV · SOCIAL FORCES, Continued

See reports and bulletins of the Joint Board of Sanitary Control (Dr. George Price, Director), also Bulletins Nos. 98. 144, 145, and 146 of the U. S. Department of Labor, and “Sanitary Control of an Industry by Itself,” by L. D. Wald, in the report of the International Congress of Hygiene and Demography, 1913.