The principles of science

by William Stanley Jevons

[568] Humboldt, Cosmos (Bohn), vol. iii. p. 224.

[569] Baily, British Association Catalogue, p. 48.

[570] Outlines of Astronomy, § 850, 4th edit. p. 578.

[571] Life of Faraday, vol. ii. p. 87.

[572] Proceedings of the Royal Society, vol. xvii. p. 212. Chemical and Physical Researches, reprint, by Young and Angus Smith, p. 290.

[573] Essai sur la Nomenclature et la Classification, Paris, 1823, pp. 107, 108.

[574] George Bentham, Outline of a New System of Logic, p. 115.

[575] Outline of a New System of Logic, 1827, p. 117.

[576] Porphyrii Isagoge, Caput ii. 24.

[577] Jevons, Elementary Lessons in Logic, p. 104.