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An easy introduction to astronomy for young gentlemen and ladies : describing the figure motions, and dimensions of the earth : the different seasons : gravity and light : the solar system : the transit of Venus and its use in astronomy : the moon's motion and phases : the eclipses of the sun and moon : the cause of the ebbing and flowing of the sea, &c. (1812)

Ferguson, James, 1710-1776 · Philadelphia : Johnson and Warner, Ann Cochran, printer · leaf 161

An illustration from An easy introduction to astronomy for young gentlemen and ladies : describing the figure motions, and dimensions of the earth : the different seasons : gravity and light : the solar system : the transit of Venus and its use in astronomy : the moon's motion and phases : the eclipses of the sun and moon : the cause of the ebbing and flowing of the sea, &c., 1812, leaf 161
e themwith the tables, and with the examples of calcu-lation. And then if you find any thing difficult,mark it, and I will help you out to-morrowmorning. Mean time if there be any thing else,which you would have us to talk about, before weare called to breakfast (which is later than usualto-day*)…

Astronomy

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