The Evolution of Worlds

Name: The Evolution of Worlds
Author: Lowell, Percival

Lowell, Percival

Cosmogony

D
    Dana, 177, 186, 189.
    Dark stars,
      origin, 2.
      number, 2, 25.
      evidence of, 3-5.
      collision of, 10, 11.
      rendered visible, 26.
    Darwin, 62, 138, Notes 252.
    Day,
      lengthened to infinity, 70, 219.
      none on Venus, 83.
      Jovian, 163.
      first appreciation of, 186.
      coincides with month, on satellites, 225.
    Death of a planet,
      defined, 214.
      catastrophic cause, 215, 216.
      due to tidal retardation of rotation, 216-219.
      outcome of loss of oceans and air, 226, 233.
      caused by extinction of Sun itself, 234.
    Density,
      of dark star, 27.
      of planets, 51, Notes 243.
      of Mercury, 63, 64.
      of Venus, 90.
      of Jupiter, 103, 117.
      of Uranus, 115.
    Deserts, increase of, on Earth, 208-211.
    Devonian era, 187.
    Dhurmsala meteorite, 41.
    Diameter,
      of Mercury, 63, 64, 66, 67.
      of Venus, 90.
      of Earth, 90.
      of Mars, 91.
      of satellites of Mars, 92.
      of Jupiter, 103.
      of Uranus, 115-117.
    Dust, in atmosphere of Venus, 75.

                    E
    Earth,
      characteristics, not universal, 90, 91, 155.
      evolved from a nebula, 149.
      internal heat, 150.
      early surface temperature, 160, 169, 170.
      once cloud-wrapped, 170, 171, 178.
      solid surface formed, 171.
      hot seas of, 171, 172.
      self-sustained, 182.
      study of, within province of astronomy, 184.
      ceased to be self-centred, 187.
      Sun becomes dominant factor in organic life of, 190.
    Earth shine, 82.
    Eccentricity, orbital,
      of Mercury, 63, 65, 69, 222.
      of asteroids, erratic, 100, 101.
      of satellites, increases with distance from primary, 134.
    Eclipsing binaries, 3, 4.
    Ejectum from nova, 5, 16.
      rate of regression, 16.
    Elemental substances, 159.
      in Sun, 159.
      once in Earth, 160.
      discovery of, in stars, 161, 162.
    Ellipticity,
      of Jupiter, 103.
      of Saturn, 109.
      of Uranus, 115.
    Encke, 68.
    Energy,
      conservation of, 140, 150, 151.
      dissipation, 140-142.
      conditions for a minimum, 142.
    Eros, fluctuation of light of, gives evidence of form, 101, 102.
    Evolution, 153.
      white nebulæ in process of, 49.
      rounded out, 56.
      of solar family, 100.
      evidence of, in solar system, 117.
      manner of, lessens energy, 141.
    Evolution, chemical, 155, 173.
      universal, 156.
      temperature conducive to, 157, 158.
      attendant upon cooling, 158, 162.
      steps in, shown by spectroscope, 161.
    Evolution, physical, 155, 162.
      induced by cooling, 162.

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The Evolution of WorldsLowell, Percival

Science

The Evolution of Worlds

Lowell, Percival

Cosmogony

D
    Dana, 177, 186, 189.
    Dark stars,
      origin, 2.
      number, 2, 25.
      evidence of, 3-5.
      collision of, 10, 11.
      rendered visible, 26.
    Darwin, 62, 138, Notes 252.
    Day,
      lengthened to infinity, 70, 219.
      none on Venus, 83.
      Jovian, 163.
      first appreciation of, 186.
      coincides with month, on satellites, 225.
    Death of a planet,
      defined, 214.
      catastrophic cause, 215, 216.
      due to tidal retardation of rotation, 216-219.
      outcome of loss of oceans and air, 226, 233.
      caused by extinction of Sun itself, 234.
    Density,
      of dark star, 27.
      of planets, 51, Notes 243.
      of Mercury, 63, 64.
      of Venus, 90.
      of Jupiter, 103, 117.
      of Uranus, 115.
    Deserts, increase of, on Earth, 208-211.
    Devonian era, 187.
    Dhurmsala meteorite, 41.
    Diameter,
      of Mercury, 63, 64, 66, 67.
      of Venus, 90.
      of Earth, 90.
      of Mars, 91.
      of satellites of Mars, 92.
      of Jupiter, 103.
      of Uranus, 115-117.
    Dust, in atmosphere of Venus, 75.

                    E
    Earth,
      characteristics, not universal, 90, 91, 155.
      evolved from a nebula, 149.
      internal heat, 150.
      early surface temperature, 160, 169, 170.
      once cloud-wrapped, 170, 171, 178.
      solid surface formed, 171.
      hot seas of, 171, 172.
      self-sustained, 182.
      study of, within province of astronomy, 184.
      ceased to be self-centred, 187.
      Sun becomes dominant factor in organic life of, 190.
    Earth shine, 82.
    Eccentricity, orbital,
      of Mercury, 63, 65, 69, 222.
      of asteroids, erratic, 100, 101.
      of satellites, increases with distance from primary, 134.
    Eclipsing binaries, 3, 4.
    Ejectum from nova, 5, 16.
      rate of regression, 16.
    Elemental substances, 159.
      in Sun, 159.
      once in Earth, 160.
      discovery of, in stars, 161, 162.
    Ellipticity,
      of Jupiter, 103.
      of Saturn, 109.
      of Uranus, 115.
    Encke, 68.
    Energy,
      conservation of, 140, 150, 151.
      dissipation, 140-142.
      conditions for a minimum, 142.
    Eros, fluctuation of light of, gives evidence of form, 101, 102.
    Evolution, 153.
      white nebulæ in process of, 49.
      rounded out, 56.
      of solar family, 100.
      evidence of, in solar system, 117.
      manner of, lessens energy, 141.
    Evolution, chemical, 155, 173.
      universal, 156.
      temperature conducive to, 157, 158.
      attendant upon cooling, 158, 162.
      steps in, shown by spectroscope, 161.
    Evolution, physical, 155, 162.
      induced by cooling, 162.

Public-domain text, read in full here on John Shaqi.

The Evolution of Worlds

The Evolution of Worlds

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