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Hope for human betterment can be realized only by a proper understanding of biologic principles. The present status of the various branches of science relating to human activity is here described by twenty-five specialists in their respective fields. The editor is Dr. Edmund V. Cowdry, professor of cytology at Washington University, St. Louis. His aim is to give the reader a broad scientific understanding to offset the tendency toward narrowmindedness and intolerance, which is apparent in the world today. This forms a barrier in considering racial welfare. A proper perspective is given in the chapter on life in space and time, with especial attention to conditions of possible life similar to ours on other spheres. We get a glimpse of the origin of man in "Evolution Traces Biochemically," by A. B. Macallum of McGill University of Montreal, and in "Human Races," by Aleš Hrdlička, anthropologist of the United States National
Human Biology and Racial Welfare.. JAMA. 1930;95(2):147. doi:10.1001/jama.1930.02720020063030