NOTES AND REFERENCES. 461 



PAGE 



119 to 123. WOLLASTON, Phil. Trans. 1822, p. 89; WHEWELL, Phil, 

 of the Induct. Sc., vol. i. p. 419 ; WILSON, Trans, of the Roy. 

 Soc. of Ed in., vol. xvi. p. 79 ; Sir W. HERSCHEL, Phil. Trans. 

 J 7935 P- 201 an d 1 80 1, p. 300; MORGAN, Phil. Trans., 

 vol. Ixxv. p. 272 ; DAVY, Phil. Trans. 1822, p. 64; Elements 

 of Chemical Philosophy, p. 97 ; GASSIOT, Phil. Trans. 1859, 



P- 157- 



Diminishing Periods of Comets (Herschel's Outlines of Astro- 

 nomy, p. 357). NEWTON, 3oth Quere to the Optics. 

 124. EMPEDOCLES. 

 -126. STRUVE, Etudes d'Astronomie Stellaire, 1847. 



127. FARADAY, Evolution of Electricity from Magnetism (Phil. 

 Trans. 1832, p. 125). 



129. FARADAY, Magnetic Condition of all Matter (Phil. Trans. 1846, 



p. 21 ; Phil. Mag. 1846, p. 249). 



BECQUEREL, Ann. de Ch. et de Ph., torn, xxxvi. p. 337 ; 

 Comptes rendus, Paris, 1846, p. 147; and 1850, p. 201. 



130. FARADAY, On the Magnetisation of Light (Phil. Trans. 1846, 



P . i). 



131. WARTMANN, Rotation of the Plane of Polarisation of Heat by 



Magnetism (Journal de ITnstitut, No. 644). 



PROVOSTAYE and DESSAINES, Ann. de Ch. et de Phys., October 



1849. 

 HUNT, Influence of Magnetism on Molecular Arrangement 



(Phil. Mag. 1846, vol. xxviii. p. i ; Memoirs of the Geological 



Society, vol. i. p. 433). 



WARTMANN, Phil. Mag. 1847, v l' xxx - P- 2 ^3- 

 GROVE, Experiment on Molecular Motion of a Magnetic Sub- 

 stance, Exp. Investns., p. 354. 



132. On the direct Production of Heat by Magnetism, Exp. 



Investns., p. 355. 



VAN BREDA, Comptes rendus, October 27, 1845. 

 JOULE, Phil. Mag. 1843. 



136. The Experiments on the Effects of Magnetism on the Matter 

 Magnetised are collected by Mr. DE LA RIVE in his recently- 

 published Treatise on Electricity, vol. i. 



138. DAVY, Electricity denned as Chemical Affinity acting on Masses 

 (Phil. Trans. 1826, p. 389). 



