Note 30 — Chapter IV · OBSERVATIONS ON THE AGENCY OF THE SENSES, RELATIVE TO THE UNION BETWEEN MIND AND MATTER; AND ON THE OCCASIONAL IMPERFECTION OF THE BODILY ORGANS OF THE SENSES, WITH THE RESULTS DEPENDING THEREUPON.
Reading edition
See Dr. Prichard's "Researches into the Physical History of Mankind," vol. i. p. 366.