6
Experimental Inquiry into the Nature of Heat. Preface, p. xv.
7
Bence Jones, Life of Faraday, vol. i. p. 362.
8
Ibid. vol. ii. p. 199.
9
See also his more formal statement in the Experimental Researches in Electricity, 24th Series, § 2702, vol. iii. p. 161.
10
Printed in Modern Culture, edited by Youmans, p. 219.