NOTES AND REFERENCES. 201 



the Ann, de Chimie et de Physique, and works from 1820 to 1826, 



Paris. 

 23. LAMARCK, * Sur la Matiere du Son ' (Journal de Physique, vol. xlix. 



p. 397). 



25. D'ALEMBERT, Traite de Dynamique, pp. 3 and 4, Paris, 1796. 

 28. BABBAGE, On the Permanent Impression of our "Words and Actions on 



the Globe we inhabit, 9th Bridgewater Treatise, ch. ix. 

 30. MATER, Annalen der Pharmacie Leibig und Wohler, May 1852. 

 83. JOULE on the Mechanical Equivalent of Heat (Phil. Trans. 1850, 



p. 61.) 

 83. ERMAN, Influence of Friction upon Thermo-electricity (Reports of the 



British Association, 1845.) 



35. BECQUEREL, Degagement de 1'Electricite par Frottement, Traite do 



1'Electricite", torn. ii. p. 113 et seq. 



36. SULLIVAN, Currents produced by the vibration of metals (Archiv. de 



I'Electricite", t. 10, p. 480). LEROUX, Vibrations arrested produce 

 heat (Cosmos, March 30, 1860). 



37. WHEATSTONE on the Prismatic Decomposition of Electrical Light 



(Notices of Communications to the British Association, p. 11, 



1835). 

 39. BACON, De Forma Calidi, Nov. Org. book 2, aph. 20. 



RUMFORD, An Enquiry concerning the Source of Heat which is excited 



by Friction (Phil. Trans, p. 80, 1798). 

 DAVY, On the Conversion of Ice into Water by Friction (West of 



England Contributions, p. 16). 

 Of Heat or Calorific Repulsion (Elements of Chemical Philosophy, 



p. 69). 



41. BADEN POWELL on the Repulsive Power of Heat (Phil. Trans. 1834, 



p. 485). 

 FRESNEL, Annales de Chimie, tonu xxix. pp. 57 and 107. 



42. MOSER on Invisible Light (Taylor's Scientific Memoirs, vol. iii. pp. 



461 and 465). 



43. BLACK on Latent Heat (Elements of Chemistry, p. 144 et passim, 



1803). 



45. The experiments of HENRY and DONNY have shown that the cohesion 

 of liquids, as far as their antagonism to rupture goes, is much 

 greater than has been generally believed. These experiments, 

 however, make no difference in the view I have put forth, as, what- 

 ever be the character of the attraction, there is a molecular attrac- 

 tion to be overcome in changing bodies from the solid to the liquid 

 state, which must require and exhaust force. 



