Leslie, Inquiry into the Nature of Heat, p. 505.

System of Logic, bk. iii. chap. viii § 6.

Laplace, System of the World, translated by Harte, vol. ii. p. 366.

Chemical Reports and Memoirs, Cavendish Society, p. 294.

Jamin, Cours de Physique, vol. ii. p. 38.

On Tides and Waves, Encyclopædia Metropolitana, p. 366*.

Encyclopædia Britannica, art. Meteorology. Reprint, §§ 152–156.

Lagrange, Leçons sur le Calcul des Fonctions, 1806, p. 4.