[578] Chrestomathia; being a Collection of Papers, &c. London, 1816, Appendix V.

[579] The Classification of the Sciences, &c., 3rd edit. p. 7. Essays: Scientific, Political, and Speculative, vol. iii. p. 13.

[580] Owen, Essay on the Classification and Geographical Distribution of the Mammalia, p. 20.

[581] Dana’s Mineralogy, vol. i. p. 123; quoted in Watts’ Dictionary of Chemistry, vol. ii. p. 166.

[582] Instructions for the Discrimination of Minerals by Simple Chemical Experiments, by Franz von Kobell, translated from the German by R. C. Campbell. Glasgow, 1841.

[583] Edition of 1866, p. lxiii.

[584] Philosophia Botanica (1770), § 154, p. 98.

[585] Philosophical Magazine, 3rd Series (1845), vol. xxvi. p. 522. See also De Morgan’s evidence before the Royal Commission on the British Museum in 1849, Report (1850), Questions, 5704*-5815*, 6481–6513. This evidence should be studied by every person who wishes to understand the elements of Bibliography.

[586] English Cyclopædia, Arts and Sciences, vol. v. p. 233.

[587] Swainson, “Treatise on the Geography and Classification of Animals,” Cabinet Cyclopædia, p. 201.