Note 8 — Chapter I
Reading edition
The Influence of Unfavourable Home Environment and Defective Physique on the Intelligence of School Children. By David Heron. Eugenics Laboratory (London), Memoir Series No. VIII.
Reading edition
The Influence of Unfavourable Home Environment and Defective Physique on the Intelligence of School Children. By David Heron. Eugenics Laboratory (London), Memoir Series No. VIII.