[268] On the Theory of Errors of Observations, Cambridge Philosophical Transactions, vol. x. Part ii. 416.
[269] Thomson and Tait, Treatise on Natural Philosophy, vol. i. p. 394.
[270] Essai Philosophique sur les Probabilités, pp. 49, 50.
[271] Grant, History of Physical Astronomy, p. 163.
[272] Gauss, Taylor’s Scientific Memoirs, vol. ii. p. 43, &c.
[273] Proceedings of the Royal Society, vol. xviii. p. 159 (Jan. 13, 1870). Philosophical Magazine (4th Series), vol. xxxix. p. 376.
[274] Airy On Tides and Waves, Encycl. Metrop. pp. 364*-366*.
[275] Outlines of Astronomy, 4th edition, § 538.
[276] Philosophical Magazine, 3rd Series, vol. xxxvii. p. 324.
[277] Letters on the Theory of Probabilities, by Quetelet, translated by O. G. Downes, Notes to Letter XXVI. pp. 286–295.