POLE n.
olarity, and Polar, n. Magnetic pole. See under Magnetic. -- Poles of the earth, or Terrestrial poles (Geog.), the two opposite points on the earth's surface through which its axis passes. -- Poles of the heavens, or Celestial poles, the two opposite points in the celestial sphere which coincide with the earth's axis…
REFRACTION n.
ongitude, etc., of a heavenly body, due to the effect of atmospheric refraction. -- Terrestrial refraction, the change in the apparent altitude of a distant point on or near the earth's surface, as the top of a mountain, arising from the passage of light from it to the eye through atmospheric strata of varying density…