FOREWORD 



I wish to thank Dr. William A. White, Superintendent of St. 

 Elizabeth's Hospital, for his permission and support in making 

 this experiment, Dr. Nolan, D. C. Lewis and Dr. Gertrude H. 

 Davies for their assistance in studying the cases, and Dr. Shep- 

 herd Ivory Franz for his advice and criticism in preparing this 

 thesis. Dr. Lewis furnished the reports of the physical examina- 

 ations which are included in the case histories. 



The names of the patients are fictitious. In quoting their 

 talk I have often translated obscene words into more technical 

 language but I have not altered the meaning in any way. 



