[2] Russell, Ph. L., pp. 17, 19, 207-8.

[3] Schröder, A. d. L., i. p. 4.

[4] See [Appendix A]. This Appendix also illustrates the importance attached to the Principle of Identity by the Professor and Bruno.

[5] S. o. S., pp. 9-15.

[6] A. d. L., i. p. 132.

[7] Cf., besides the reference in the last note but one, E. L. L., pp. 183, 191. “Contrariwise,” it may be remarked, is not a term used in traditional logic.

[8] S. L., 1881, pp. 173-5, 324-5; 1894, pp. 194-6.

[9] Cf. [Appendix C], and William Robertson Smith, “Hegel and the Metaphysics of the Fluxional Calculus,” Trans. Roy. Soc., Edinb., vol. xxv., 1869, pp. 491-511.

[10] See [Appendix B].

[11] [This is a remarkable anticipation of the note on pp. 39-40 of Mr. Russell’s book, published about three years after the death of Mr. R*ss*ll, and entitled Our Knowledge of the External World as a Field for Scientific Method in Philosophy, Chicago and London, 1914.—Ed.]