Mental defect, mal-nutrition, and the teacher's appreciation of intelligence; a reply to criticisms of the memoir on 'The influence of defective physique and unfavourable home environment on the intelligence of school children, ' Heron, David. creator text book London Dulau & Co 1911 1911
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ENG Children with disabilities Heredity HQ750.A1 L85 2 Questions of the day and of the fray, no. 2 Questions of the day and of the fray, no. II https://www.biodiversitylibrary.org/bibliography/30856 10547310 12016627 10.5962/bhl.title.30856 DLC