[341] Régis, E.: A Practical Manual of Mental Medicine. Translation of H. M. Bannister, 1894.

[342] Grasset, Joseph: The Semi-Insane and the Semi-Responsible. Translated by Smith Ely Jelliffe. 1907.

[343] Kraepelin, E.: Clinical Psychiatry. Translated by Thomas Johnstone. 1906.

[344] Kraepelin, E.: Psychiatrie. Eighth edition. Vol. 4, 1915.

[345] Bucknill, J. C., and Tuke, D. Hack: Psychological Medicine. Fourth edition. 1879.

[346] Tredgold, A. F.: Mental Deficiency, 1915.

[347] Goddard, H. H.: Feeblemindedness. 1914.

[348] Kraepelin, E.: Psychiatrie. Eighth edition. Vol. 4, 1915.

[349] Kraepelin, E.: Psychiatrie. Eighth edition. Vol. 3, 1913.