[210] Op. cit., p. 335. See also C. L. Morgan: Introduction to Comparative Psychology, p. 232, London, 1900.
[211] Cornish states (Animals at Work and Play, p. 30) that hunters near the Caspian are able to decoy partridges by use of brilliant colors.
[212] See the writer's paper, Respiration and Emotion in Pigeons, op. cit., p. 502.
[213] One of Porter's sparrows was less successful with yellow and red than with blue and green. He says: "This may be partly explained from the fact that she was more afraid of these." Op. cit., pp. 338, 339. See also E. L. Thorndike: Instinctive Reactions of Young Chicks, Psychological Review, vol. 6, pp. 283-284, 1899.
[214] Tables V, VII, and IX.
[215] Tables VI, VIII, and X.
[216] Op. cit., p. 338.
[217] From the tables (op. cit., pp. 330-339) it seems that the right choices for position, color, and form, were respectively, 40%, 58% and 20%. The comparatively small number of correct position choices was probably due to his using ten boxes instead of six, as in the other two series. My results given in Table XI were secured under almost exactly comparable conditions. Compare results of Kinnaman in case of the Rhesus monkey, op. cit., pp. 130, 131, 134, 141, and 177.
[218] An Introduction to the Study of Zoölogy, illustrated by the Crayfish, Internat. Sci. Ser., 1880.
[219] How the Burrowing Crayfish works, Inland Monthly, Columbus, Ohio, vol. 1, pp. 31, 32, 1885.