Popular lessons in astronomy, on a new plan

by Francis J. Grund

FOOTNOTES:

[4] The propriety of this comparison becomes still more evident, when we reflect that the Axis of the top is generally somewhat inclined to the plane.

[5] If the terms perpendicular and oblique, should not be perfectly understood by the pupils, it will be easy for the teacher to explain their meaning.

[6] If the Earth requires 365 days to travel round the Sun; and each day has twentyfour hours; then the Earth will, during the whole of this time, turn Three Hundred and Sixtyfive times on its axis.