[238] Philosophical Magazine, 1851, 4th Series, vol. ii. passim.

[239] Hearn, Philosophical Transactions, 1847, vol. cxxxvii. pp. 217–221.

[240] The Correlation of Physical Forces, 3rd ed. p. 159.

[241] Collected Works of Sir H. Davy, vol. ii. pp. 12–14. Elements of Chemical Philosophy, p. 94.

[242] Nicholson’s Journal, vol. i. p. 241; quoted in Treatise on Heat, Useful Knowledge Society, p. 24.

[243] Clerk Maxwell, Theory of Heat, p. 228. Proceedings of the Manchester Philosophical Society, Nov. 26, 1867, vol. vii. p. 35.

[244] Leslie, Inquiry into the Nature of Heat, p. 10.

[245] Jevons, Watts’ Dictionary of Chemistry, vol. i. pp. 513–515.

[246] Philosophical Transactions, vol. li. p. 100.

[247] Philosophical Magazine, 3rd Series, vol. xxvi. p. 372.