[118] Encyclopædia Metropolitana, art. Probabilities, p. 400.

[119] Philosophical Transactions (1767). Abridg. vol. xii. p. 435.

[120] Transactions of the Edinburgh Philosophical Society, vol. xxi. p. 375.

[121] Montucla, Histoire des Mathématiques, vol. iii. p. 386.

[122] Leibnitz Opera, Dutens’ Edition, vol. vi. part i. p. 217. Todhunter’s History of the Theory of Probability, p. 48. To the latter work I am indebted for many of the statements in the text.

[123] Positive Philosophy, translated by Martineau, vol. ii. p. 120.

[124] System of Logic, bk. iii. chap. 18, 5th Ed. vol. ii. p. 61.

[125] Montucla, Histoire, vol. iii. p. 405; Todhunter, p. 263.

[126] Essay concerning Human Understanding, bk. iv. ch. 14. § 1.

[127] Philosophical Magazine, 4th Series, vol. i. p. 354.