Popular lessons in astronomy, on a new plan; (1833)
Grund, Francis J. (Francis Joseph), 1804-1863 · Boston, Carter, Hendee and co. · leaf 75
Less. VI.] IN ASTRONOMY. 21 ^ 34. The Earths surface is not throughout equally illumined or heated by theSun; because the Suns rays strike some portions of the Earth more perpendicularthan others. Our Earth, therefore, is divided into Climates or Zones, whichyou will understand better from Plate…
Astronomy, Juvenile and popular
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