[338] Talbot, Philosophical Magazine, 3rd Series, vol. ix. p. 1 (1836); Brewster, Transactions of the Royal Society of Edinburgh [1823], vol. ix. pp. 433, 455; Swan, ibid. [1856] vol. xxi. p. 411; Philosophical Magazine, 4th Series, vol. xx. p. 173 [Sept. 1860]; Roscoe, Spectrum Analysis, Lecture III.
[339] Balfour Stewart, Elementary Treatise on Heat, p. 192.
[340] British Association, Liverpool, 1870. Report on Rainfall, p. 176.
[341] Philosophical Magazine., Dec. 1861. 4th Series, vol. xxii. p. 421.
[342] Experimental Researches in Electricity, vol. iii. p. 84, &c.
[343] Lectures on Heat, p. 21.
[344] Baily, Memoirs of the Royal Astronomical Society, vol. xiv. pp. 29, 30.
[345] Grant, History of Physical Astronomy, p. 531.
[346] Philosophical Transactions, abridged by Lowthorp, 4th edition, vol. i. p. 202.
[347] Jevons in Watts’ Dictionary of Chemistry, vol. ii. pp. 936, 937.