[16] Some trials were made by Mr. Guthrie with imagined tunes. But they were in no instance successful without contact; and as obviously the chances of unconscious indications being given, in any case considerable where tunes are in question, are much increased by contact, we should not be justified in regarding successful results, under such conditions, as even prima facie due to Thought-transference. (See Proc. S.P.R., vol. iii. pp. 426, 447, 448.)
[17] See below, Chapter III.—Mrs. Sidgwick's experiments.
[18] The calculation is by Professor F. Y. Edgeworth. (See Proc. S.P.R., vol. iii. p. 190.) Of course the statement in the text must not be taken as indicating the belief of Mr. Edgeworth or the writer or any one else that the above figures demonstrate Thought-transference as the cause of the results attained. The results may conceivably have been due to some error of observation or of reporting. But the figures are sufficient to prove, what is here claimed for them, that some cause must be sought for the results other than chance.
[19] Proc. American S.P.R., pp. 17 et seq.
[20] See Dr. Thaw's paper, Proc. Soc. Psych. Research, vol. viii. pp. 422 et seq.
[21] Records of these experiments will be found in the Proc. of the Soc. Psych. Research, vol. i. pp. 263-283; vol. ii. pp. 1-5, 24-42, 189-200; vol. iii. pp. 424-452.
[22] Proc. Soc. Psych. Research, vol. ii. pp. 194-196.
[23] Proc. Soc. Psych. Research, vol. iv. pp. 324 et seq.; vol. v. pp. 169 et seq.
[24] Proc. S.P.R., vol. vii. pp. 3-22.
[25] Trasmissione del Pensiero, etc., Naples, 1891.