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Published online by Cambridge University Press: 14 March 2022
1 Phil. of Sci. 3, 237 (July, 1936).
2 Monist 44, 80 (July, 1934).
3 Proc. Arist. Soc. 28, 1, 1927-8.
4 For proof see, for example, C. D. Broad, Mind, 27, 400, 1918.