Beobachtungen und Versuche zur Physiologie der Sinne. Neue Beiträge zur Kenntniss des Sehens in subjectiver Hinsicht. 2 vols.

“Purkynĕ phenomenon” or “Purkynĕ shift”, a change in the apparent relative luminosity of colors in a dim light (scotopic vision) compared with that in full daylight (photopic vision). Also published in Rust’s Mag. ges. Heilk., 1825, 20, 3-83, 199-276, 391-423. See V. Kruta J.E. Purkynĕ, physiologist. A short account of his contributions… with a bibliography of his works. Prague: Academia Publishing House, 1969.