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The fourth edition of this well and favorably known textbook fully maintains the high standards of its predecessors. The changes that have been made are quite extensive, and serve to bring the text fully up to date. The chapters on defective delinquency have been entirely rewritten, and there is an excellent discussion of the advantages of the British Mental Deficiency Act of 1913. The author has also included his schematic outline of mental evolution, which should be found of considerable value in analyzing cases that come under observation. The chapters dealing with clinical examinations and mental tests have also been rewritten with admirable clearness. The subject of mental deficiency is rapidly coming to take the prominent place it deserves in social health problems, and there is great need for conservative and authoritative information. These are nowhere so well presented as in this book. Dr. Tredgold's style is clear and concise,
Mental Deficiency (Amentia).. JAMA. 1923;80(17):1265. doi:10.1001/jama.1923.02640440079033