Professor George Herbert Betts (1868-1934) was the American author of The Recitation (1910), New Ideals in Rural Schools (1913), The Mind and its Education (1916), Hygiene and Health (with Charles P. Emerson) (1919), Physiology and Hygiene (with Charles P. Emerson) (1920), How to Teach Religion (1926), and Habits for Health (with Charles P. Emerson) (1936). Это и многое другое вы найдете в книге The Mind and Its Education (Illustrated Edition) (Dodo Press) (George Herbert Betts)