1. A. Pick: The Relationship Between Autointoxication and Neurasthenia. Abstracted in Med. Rec. xlix, 1896, p. 375.
2. M. Allan Starr: The Toxic Origin of Neurasthenia and Melancholia. Med. Rec. 1901, 59, p. 721.
3. I. Coriat: Some Observations Upon the Elimination of Indican, Acetone and Diacetic Acid in Various Psychoses. Am. J. of Insanity, 58, 1901–02, p. 635.
4. Wagner Von Jauregg: Quoted by Coriat, (Ref. No. 3).
5. Regis: Quoted by Coriat, (Ref. No. 3).