Monographie

The magnetic atlas, or Variation charts of the whole terraqueous globe ; comprising a sytem of the variation and dip of the needle, by which, the observations being truly made, the longitude may be ascertained / John Churchman

  • Texte
  • The magnetic atlas, or Variation charts of the whole terraqueous globe ; comprising a sytem of the variation and dip of the needle, by which, the observations being truly made, the longitude may be ascertained / John Churchman
  • London : Darton, 1794
  • Anglais
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