INDEX 



Absolute Zero of Temperature, 96 



Air Engine, Joule's, 138 



— Rarefaction and Condensation, 78 



Albert Medal presented to J. P. 

 Joule, 166 



Amalgams, Investigations on, 138 



Annals of Electricity, 33, 44 



Atmospheres, whirling, Joule's Hy- 

 pothesis, 95 



Atomic volume, Researches on, 102 



Atoms ; necessity of motion, 14 



Binney, E. W., portrait ' presented to 

 the Manchester Literary and Philo- 

 sophical Society, 166 ; death of, 168 

 Black's discoveries on heat, 18, 174 

 Boyle, Heat a kind of motion, 86, 174 

 Boyle's law, 82, 140; Explanation 



of, 87 

 British Association Meetings, 53, 67, 

 71, 107, 114, 135, 138, 141, 151—2, 160, 

 163, 169 



Caloric, invention of, 18, 177, 184; 

 hypothesis of, established, 91. See 

 also Heat 



""Calorific Effects of Magneto-Elec- 

 tricity, &c," 67 



Cambridge Philosophical Society, 116, 

 143 



'Carnot's theorem on the conversion 

 of heat, 20 ; theory of the Steam 

 Engine, 90; his law, 110; Sir W. 

 Thomson on, 119; Rankine's equa- 

 tions in connection with his theory, 

 125 



Carnot's function, form of, suggested 

 by Joule, 128 



Chemical affinity, intensity of, depen- 

 dent on the gaseous or non-gaseous 

 condition, 51 ; defined, 72 



'Chemical equivalents of electric action 

 and heat, 47, 58 



'Chemistry, Extracts from Lavoisier's 

 "Traite" Ele'mentaire de Chemie," 

 185 



•Clapeyron, E., on the Steam Engine, 

 88 



Clausius, R. J. E., on the Mechanical 

 Action of Heat, 128. Theory of 

 Gases, 143, 152 

 Cold, action on Iron and Steel, 157 

 Colding's suggestions on the conver- 

 sion of heat, 21 

 Collier, J., Portrait of J. P. Joule, 168 

 Condensation of air experiments, 82 

 Conservation of Energy, 2 et seq. 

 Copley medal, 156 

 Crompton, Dr. Samuel, 161 



Dalton, Dr. John, 27; Joule's associa- 

 tion with, 27 ; influence on Joule's 

 work, 28 ; experiments on air com- 

 pression and rarefaction, 80 



Dancer, J. B.,81 



Davies, John, teaches chemistry to 

 Joule, 30 ; on animal heat, 71 



Davy, Sir H., mechanical hypothesis 

 of heat, 86, 124 



Dynamo, invention of, 22 



Earth, living force of the, 10 ; effect of 

 falling into the sun, 11 



Edinburgh, Royal Society of, 119, 123, 

 130 



Electric action, Ohm's measure of, 24 ; 

 mechanical equivalent of, 40, 47 ; 

 heat equivalent of, 48 ; chemical 

 equivalent of, 49 



Electric engine, Joule's, 35 



Electric measurement, absolute unit 

 system, 41 



Electric origin of heat, 49 



Electricity, discoveries, 22; extract 

 from Faraday's " Experimental 

 Researches," 189 



Electro-magnetic engine, 22 ; duty per 

 grain of zinc consumed, 100 



Electro-magnetic attraction, law of, 37 



Elias, Dr. Daniel, attends Joule in 

 illness, 162 



Energy, conservation of, 2 et seq., ap- 

 plication of the term, 17, 92 ; concen- 

 tration of, 104 ; dissipation of, 123 



Faraday, Prof. M., electrical dis- 



