Note 227 — Chapter I · SPECULATIVE PHILOSOPHY IN GREECE, BEFORE AND IN THE TIME OF SOKRATES. (continued 2)

Theophrastus, De Sensu, s. 73 seq.; Aristotel. De Sensu, c. iv. p. 442, b. 10. The opinions of Demokritus on colour are illustrated at length by Prantl in his Uebersicht der Farbenlehre der Alten (p. 49 seq.), appended to his edition of the Aristotelian or Pseudo-Aristotelian treatise, Περὶ Χρωμάτων (Munich, 1849).

Demokritus seems also to have attempted to show, that the sensation of cold and shivering was produced by the irruption of jagged and acute atoms. See Plutarch, De Primo Frigido, p. 947, 948, c. 8.