Hydrodynamics, 153-175

  Images, electric, 31, 38-59

  Inversion, electrical, 49 _et seq._

  Inversion, geometrical, 59, 60

  Joule, James Prescott, 77, 86 _et seq._, 101 _et seq._

  Larmor, Joseph, 256

  Lectures on Natural Philosophy at Glasgow, 279 _et seq._

  Liouville, 31

  Liouville's _Journal de Mathématiques_, 25, 26, 31

  Loschmidt, 262

  Lubbock, Sir John (Lord Avebury), 85

  Luminiferous ether, motion of planets through, 256

  Magnetism, theory of, 227

  Mariners' compass, 272 _et seq._

  Maxwell, 117, 193, 305

  Mayer, of Heilbronn, 105

  McFarlane, Donald, 96, 287, 289

  McKichan, Dugald, 193

  _Mécanique Analytique_ of Lagrange, 199, 205

  _Mécanique Céleste_ of Laplace, 199, 205

  Meikleham, William, 61

  Mirror galvanometer, 268

  Motivity, thermodynamic, 138

  Natural Philosophy, Chair of, at Glasgow, 63

  _Natural Philosophy_, Thomson and Tait's, 196 _et seq._

  Navigational sounding machine, 272

  Newton, 195, 202

  Nichol, John, Professor of English Language and Literature, 5

  Nichol, John Pringle, Professor of Astronomy, 5, 20, 61, 63

  Oersted, 61

  Oscillations, electrical, 181 _et seq._

  Parkinson, Stephen, 27

  Peltier, 148

  Pendulum, ballistic, 288

  Perry, John, 240, 296

  Phosphorescence, dynamical theory of, 259

  Physical laboratory, first, 70

  Pickering, 217

  Polarised light, rotation of plane of, 220

  Principia, Newton's, 195, 202

  Ramsay, George Gilbert, Professor of Humanity, 11

  Regnault, 29

  Royal Society of Edinburgh, presidency of, 299

  Royal Society of London, presidency of, 299

  Rumford, Count, 103

  Seebeck, 148

  Signalling, theory of telegraphic, 264

  Siphon recorder, 268, 270

  Smith, Archibald, 275

  Spectrum analysis, dynamical theory of, 84

  Stokes, Sir George Gabriel, 24, 79, 80, 81, 85, 291, 294

  Stoney, Dr. Johnstone, 262

  Sun's heat, age of, 232

  Tait, Peter Guthrie, 194 _et seq._

  Temperature, absolute, 125 _et seq._;
    comparison of, with scale of air thermometer, 135

  Thermodynamics, 99-152

  Thermoelasticity, 142 _et seq._

  Thermoelectricity, 147 _et seq._

  Thermometry, absolute, 114-152

  Thomson, David, 61

  Thomson, James, Professor of Mathematics, 1-4, 7

  Thomson, James, Professor of Engineering, 113, 209;
    integrating machine, 209, 303

  Thomson and Tait's Natural Philosophy, 68, 196 _et seq._, 218

  Thomson's theorem of minimum kinetic energy, 158

  Thomson, Thomas, Professor of Chemistry, 6

  Thomson, prevalence of name at Glasgow College, 5

  Thomson, William, Lord Kelvin:--
    Parentage and early education, 1-12
    Career at Universities of Glasgow and Cambridge, 13-32
    Early researches, 16, 18, 31
    Election to Chair of Natural Philosophy at Glasgow, 64
    Scientific researches, passim;
      Jubilee of, 301;
      Chancellor of University of Glasgow, 302
    In class-room and laboratory, 279-298
    Practical activities, honours and distinctions, last illness and
        death, 299-304;
      funeral in Westminster Abbey, 304

  Tidal Analyser, 211

  Tide Predicter, 208

  Vortex-Motion, 161-175

  Waldstein sonata, 24

  Weber, W., 193

  Weights and measures, British, 289, 290

  White, James, 276

  Willard Gibbs, 294

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