196 



INDEX. 



Motor, Electrical, Invention of, 22 



Oersted's electrical discoveries, 22 

 Ohm's electrical discoveries, 22, 23, 24 

 Oxygen, affinities of, 51. 



Paddle, use of the, 97 



Patten, G., Portrait of J. P. Joule, 151 



Perpetual motion, 38 



Philosophical Magazine, 46, 53, 67, 77, 

 78, 97, 99, 101, 102, 105, 106, 111, 124, 

 138 



Philosophical Society, See Cambridge 

 and Manchester 



Philosophical Transactions, 45, 127, 

 131, 139, 146, 149, 163, 167 



Physical Science, Mechanical founda- 

 tion of, 2 



Playfair, Rt. Hon. Sir Lyon, researches 

 on atomic volume, 102 



Railway accident, 147 



Rankine, W. J. M., hypothesis of 



molecular Vortices, 95; on "The 



Mechanical Action of Heat," 123 ; 



" Manual of the Steam Engine," 152 

 Rarefaction, Experiments on, 84 

 Regnau.lt's Memoirs on the Steam 



Engine, 116 

 Repulsion as a property of Matter, 4 

 Resistance, internal magnetic, 40 

 Roget's views on the destructibility of 



Force, 187 

 Roscoe, Sir Henry, Secretary of Manch. 



Lit. and Phil. Soc, 150; intimacy 



with J. P. Joule, 156 

 Roscoe, Lady, portrait of Joule, 171 

 Royal Society, 45, 50, 131, 136, 139, 



141, 147, 148, 171 

 Rumford, Count, on frictional heat, 



19 ; observations on heat, 132 



Salford, birthplace of J. P. Joule, 25 

 Schunck, Dr., Secretary of Manch. 



Lit. and Phil. Soc, 150 

 Scientific Papers, Joule's, Publication 



of, 166 

 Scoresby, Rev. Dr. Wm, 55, 77, 99, 100 

 Seguin, H., suggestions on the con- 

 version of heat, 21 ; experiments on 

 Steam, 133 

 Solids, Thermo- dynamics of, 146 

 Sound, theoretical velocity of, 106 

 Speed, fundamental limit to, 39 



Stars, Shooting, explanation of, 11, 

 105, 111 



Steam condensation experiments, 149 ; 

 Steam-engine as a contributor to the 

 discovery of the mechanical origin of 

 heat, 20 ; increase of power, 68 ; new 

 theory, 88 ; duty of a Cornish engine 

 per grain of coal consumed, 101 ; 

 Regnault's memoirs, 116 



Steel, action of cold on, 157 



Sturgeon, Wm., electrical discoveries, 

 22, 24 ; electro-magnetic engine, 33 ; 

 Joule's memoir of, 145 



Sun, effect of the earth falling into, 11 



Tait, P. G., 152 



Taylor, Dr., of Todmorden, treats 

 Joule for spinal weakness, 29 



Temperature, changes produced by 

 rarefaction and condensation of air, 

 78 ; absolute zero of, 96 



Thermo-dynamics, development of the 

 theory, 128 : application to gases, 139 



Thomson, Sir Wm,, application of the 

 term energy, 92 ; names Joule's gene- 

 ralization, 105 ; on the Oxford M eet- 

 ing of the British Association, 1847, 

 108 ; on the absolute thermo-metric 

 scale, 116 ; on Carnot's theory of the 

 motive power of heat, 119 ; on 

 Rankine, 129 ; paper on " Dynamical 

 theory of heat," 130; investigation 

 with Joule on gases, 139; experi- 

 ments on fluids in motion, 144 ; on 

 latent heat, 146; awarded the Copley 

 medal, 156 



Victoria University, 166 



Water, Electrolysis of, 55 

 Watt Monument, opening, 151 

 Welding metals by electric current, 



144 

 Williamson, Prof., address to British 



Association, 1873, 160 

 Wind, cause of, 12 

 Windermere, Lake, depth of, 31 

 Woods, Thomas, M.D., conduct of, 



149 

 Work, application of the term, 17 ; the 



measure of mechanical potency, 19 ; 



Joule's first measurement of, 35; 



dynamical significance of, 93 



V 



