[461] Jevons, "Principles of Science," vol. ii. p. 434.
[462] Grove, "Correlation and Conservation of Forces," p. 24.
[463] "There is one wonderful condition of matter, perhaps its only true indication, namely, inertia."—Faraday, "Correlation and Conservation of Forces," p. 368; Maxwell, "Theory of Heat," p. 86.
[464] Stewart, "Physics," p. 357.
[465] Ibid. p. 355.
[466] "Correlation and Conservation of Forces," p. 195.
[467] "Fragments of Science," p. 39.
[468] "Fragments of Science," p. 420.
[469] Nature, vol. viii. p. 280.
[470] Nature, vol. vi. p. 125.