Chapter 22

Mental Diseases in Twelve States, by Horatio M. Pollock and Edith M. Forbush, _Mental Hygiene_, April, 1921. The Kallikak Family, Dr. F.H. Goddard. Treatise on Idiocy, by Dr. Edward Seguin. Proceedings and Addresses of Forty-fifth and Forty-sixth Sessions of American Association for Study of the Feeble-minded. Experiments to Determine Possibilities of Subnormal Girls in Factory Work, by Elizabeth B. Bigelow, _Mental Hygiene_, April, 1921. Vocational Probation for Subnormal Youth, by Arnold Gesell, _Mental Hygiene_, April, 1921. Report of Mental Examination of 839 Women and Girls, by Anne T. Bingham, New York Probation and Protective Association. Colony and Extra-institutional Care of the Feeble-minded, by Charles Bernstein, _Mental Hygiene_, January, 1920. Human Nature and the Social Order, Chapter on Personal Degeneracy, by C.H. Cooley. Psychology, by William James. Brain and Personality, by F.E. Thompson.