NOTES AND REFERENCES. 207 



PAGE 







145. FARADAY, On the Magnetism of Light (Phil. Trans. 1846, p. 1). 



145. WARTMANN, Kotation of the Plane of Polarisation of Heat by Magnet 



ism (Journal de 1 Institute, No. 644). 

 PROYOSTAYE and DESSAINES, Ann. de Ch. et de Phys. October 1849. 



146. HUNT, Influence of Magnetism on Molecular Arrangement (Phil. Mag 



1846, vol. xxviii. p. 1 ; Memoirs of the Geological Society, vol. i 

 p. 433). 

 WARTMANN, Phil. Mag. 1847, vol. xxx. p. 263. 



147. GROVE, Experiment on Molecular Motion of a Magnetic Substance 



(Electrical Mag. 1845, vol. i. p. 601). 



147. On the direct Production of Heat by Magnetism (Proceedings of the 



Royal Society, 1849, p. 826). 



After this paper was communicated and ordered to be printed in the 

 Philosophical Transactions, I found that I had been anticipated by 

 Mr. VAN BREDA, who communicated, in 1845, a paper to the Insti- 

 tut on the subject : his paper appears in the Comptes rendus under 

 an erroneous title, which accounts for its having been overlooked : 

 he does not give thermometric measures of the heat he obtained, 

 nor did he produce heating effects by a permanent steel magnet, or 

 with other metals than iron. (Comptes rendus, October 27, 1845). 

 See also an earlier experiment by Mr. JOULE (Phil. Mag. 1843), to 

 which he called my attention after my paper was read. 



148, 151. The Experiments on the effects of Magnetism on the Matter 



magnetised, are collected by Mr. DE LA RIVE in his recently-pub 

 lished Treatise on Electricity, vol. i. 



153. DAVY, Electricity denned as Chemical affinity acting on Masses (Phil. 



Trans. 1826, p. 389). 



YOLTA, Electricity excited by the mere Contact of conducting Sub 

 stances (Phil. Trans. 1800, p. 403). 



154. GROVE, Gold-Leaf Experiment (Comptes rendus, Paris, 1889, p. 567). 



155. GROVE, Voltaic Action of Sulphur, Phosphorus, and Hydrocarbons 



(Phil. Trans. 1845, p. 351). 



GROVE, New Voltaic Combination (Phil. Mag. vol. xiv. p. 388 ; vol. 

 xv. p. 287). 



155. GROVE, Electricity of Blowpipe Flame (Proceedings of the Royal 

 Institution, February 1854), Phil. Mag. 



157 DALTON, New System of Chemistry, London, 1810. 



158. I have here and elsewhere used whole numbers, as sufficiently approxi 

 mate for the argument, but without intending to express any opin 

 ion as to the law of PROUT. 



158. FARADAY, Definite Electrolysis (Phil. Trans. 1834, p. 77). 



