The Argot of the Underworld Narcotic Addict

Acknowledgment: To certain underworld figures connected with the narcotic traffic, to Federal men in the Public Health Service, to stoolpigeons and informers employed by the Department of Justice, all of whose names must obviously be withheld, for the assistance they have rendered in preparing this study. I am especially indebted to Dr. Victor H. Vogel, U. S. Public Health Service, for his assistance in getting informants, and to Dr. Edward H. Carleton, of the Dorsey Clinic, Louisville, Kentucky, for his careful attention to medical and anatomical details.