Guy's elements of astronomy, and an abridgement of Keith's New treatise on the use of the globes (1832)
Guy, Joseph. [from old catalog], Keith, Thomas, 1759-1824. A new treatise on the use of the globes. [from old catalog] · Philadelphia, Key, Mielke & Biddle · leaf 81
, and that to the south thetropic of Capricorn. The Polar circles circumscribe the poles of theworld, at the distance of 23^ degrees. That on thenorth is called the Arctic, and that on the south theAntarctic circle. The distance of these polar circles from the poles being fixed at 23£°(the same as… … MERIDIANS, COLURES, &C. 49 The Meridians are so called because, as the earthrevolves on his axis, when any one of them is oppositeto the sun it is mid-day or neon along that line. Twen-ty-four of these lines are usually drawn on the globes,to correspond with the twenty-four hours of the day.Not…
Astronomy · Celestial globes
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
