[258] See, for instance, the Compensated Sympiesometer, Philosophical Magazine, 4th Series, vol. xxxix. p. 371.
[259] Grant, History of Physical Astronomy, pp. 146, 147.
[260] Quetelet, Sur la Physique du Globe, p. 174. Jamin, Cours de Physique, vol. i. p. 504.
[261] Baily’s Account of Flamsteed, p. 376.
[262] The Transit of Venus across the Sun, by Horrocks, London, 1859, p. 146.
[263] De Morgan, Supplement to the Penny Cyclopædia, art. Old Appellations of Numbers.
[264] Penny Cyclopædia, art. Mean.
[265] Jevons, Journal of the Statistical Society, June 1865, vol. xxviii, p. 296.
[266] Letters on the Theory of Probabilities, transl. by Downes, Part ii.
[267] Herschel’s Essays, &c. pp. 404, 405.