- Llewellyn J. Llewellyn
- Wilhelm Stekel
- Elek Szitnyai
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- S. Laing
- W. D. Wattles
- Oskar F. Walzel
- George Herbert Palmer
- Dorothy M. Richardson
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- Paolo Mantegazza
- Isaac Taylor
- William MacOubrey
- Jim Harmon
- Remy de Gourmont
- William Walker Atkinson
- Theobald Ziegler
- Émile Faguet
- William Walker Atkinson
- Arthur Schopenhauer
- Victor Barrucand
- Charles Macomb Flandrau
- Thomas Hunt Morgan
- W. T. Stead
- Henri Pirenne
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Observations on the Causes, Symptoms, and Nature of Scrofula or King's Evil, Scurvy, and Cancer With Cases Illustrative of a Peculiar Mode of Treatment
John Kent