NOTE8_ AND REFERENCES. 203 



PAGE 



60. MELLONI, Sur la Polarisation de la Chaleur : Reeherches sur plusieurs 



Phe"nomenes calorifiques (Annales de Chimie et de Ph. torn. xlv. 

 pp. 568 ; torn. xli. pp. 375-410 ; torn, xlviii. pp. 198, 218). 

 FORBES, On the Refraction and Polarisation of Heat (Transactions of 

 the Royal Society of Edinburgh, vol. xiii. pp. 131, 168). 



61. KIRCHOFF Trans. Belin Acad. 1861. 



BALFOUR STEWART on the theory of Exchanges (Report British Asso- 

 ciation, 1861). 



63. T. WEDGWOOD, On the Production of Light and Heat by different 

 Bodies (Phil. Trans, vol. Ixxxii. p. 272). 



65. GROVE, On the Decomposition of Water into its Constituent Gases by 



Heat (Phil. Trans. 184Y, p. 1). 



ROBINSON, On the Effect of Heat in lessening the Affinities of the 

 Elements of Water (Transactions of the Royal Irish Academy, vol. 

 xxi. p. 2). 



67. GROVE, Water decomposed by Chlorine and Heat (Phil. Trans. 1847, 

 p. 20). 



70. CARNOT, Reflexions sur la Puissance motrice du Feu, Paris, 1824. 



76. SEQUIN, Influence des Chemins de Fer, p. 378 et seq. 



77. ROGERS, Consumption of Coal for Man power (Cosmos, vol. ii. p. 56). 



80. Mr. WATERSTON has suggested that solar heat may arise from the 



mechanical action of meteoric stones falling into the sun, and Mr. 

 THOMPSON has written an elaborate paper on the subject (Trans. 

 Brit. Assoc. 1853). If a number of gravitating bodies exist hi the 

 neighbourhood of the sun, and form, as is conjectured, the zodia- 

 cal light, it is difficult to conceive how comets as they approach 

 this region steer clear of such bodies, and are not even deflected 

 from their orbits. 



For Mr. THOMPSON'S various and valuable papers, see Phil. Mag. 1851 

 to 1854 inclusive. 



81. POISSON, Comptes rendus, Paris, January 30, 1837. 



83. DUFAYE, SYMMER, WATSON, and FRANKLIN, Theories of Electric Fluid 



and Electric Fluids (Priestley's History of Electricity, pp. 429 



441). 

 83. GROTTHUS, Sur la Decomposition de 1'Eau et des Corps qu'elle tient 



en dissolution a aide de PElectricit6 galvanique (Ann. de Chimie, 



torn. Iviii. p. 54). 

 FARADAY, On the Question whether Electrolytes conduct without 



Decomposition (Proceedings of the Weekly Meetings of the Royal 



Institution, 1855). 

 GROVE (Comptes rendus, Paris, 1839). 



