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Updated: July 12, 2026
The following works are psychological contributions to the theory of knowledge: E.L. Fischer, Theorie der Gesichtswahrnehmung, 1891; Hermann Schwarz, Das Wahrnehmungsproblem, 1892. Finally we may add A. Dorner in Königsberg, Das menschliche Erkennen, 1887; and E.L. Fischer, Die Grundfragen der Erkenntnisstheorie, 1887.
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