Book Review The Principles and Practice of Hygiene . By Dean Franklin Smiley, A.B., M.D., Medical Adviser and Professor of Hygiene in Cornell University, and Adrian Gordon Gould, Ph.B., M.D., Assistant Medical Adviser and Assistant Professor of Hygiene in Cornell University, and Elizabeth Melby, M.A. (Columbia), R.N., Assistant Professor, Yale University School of Nursing. New York: The Macmillan Company. 1930. Price $2.50.

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