Note 130 — Chapter VII
Reading edition
See e.g. Galton, Inquiries (Everyman's Library edition), pp. 79-112. Among more recent writings on this subject may be mentioned Bleuler, art. 'Secondary Sensations,' Tuke's Dictionary of Psychological Medicine; Suarez de Mendoza, L'Audition Colorée; Jules Millet, Audition Colorée; and especially a useful summary by Clavière, 'L'Audition Colorée,' L'Année Psychologique, fifth year, 1899. A case of auditory gustation is recorded by A. M. Pierce, American Journal of Psychology, 1907. It may be noted that Boris Sidis has argued (Psychological Review, January 1904) that all hallucinations are of the nature of secondary sensations.