[446 ]Elements of Astronomy, by John Brinkley, D. D., F.R.S. Dublin, 1819, p. 113.

[447 ]Celestial Scenery, by Thomas Dick, LL.D. London, 1838, p. 350.

[448 ]The Moon, by Edmund Neison, F.R.A.S. London, 1876, pp. 17, 129.

[449 ]The Art of Scientific Discovery, by G. Gore, LL. D., F.R.S. London, 1878, p. 587.

[450 ]The Moon, her Motions, Aspect, Scenery, and Physical, Condition, by Richard A. Proctor. London, 1878, p. 300.

[451 ]Other Worlds than Ours. London, 1878, p. 167.

[452 ]An Historical Account of Astronomy, by John Narrien, F.R.A.S. London, 1833, p. 448. See also Schroeter's, Observations on the Atmosphere of the Moon. Philosophical Trans. for 1792, p. 337.

[453 ]Plutarch's Morals. Translated by P. Holland. London, 1603, pp. 825, 1178.

[454 ]Cosmotheoros, by Christian Huyghens van Zuylichem. Glasgow, 1757, pp. 177, 178.

[455 ]The Wisdom of God in the Creation, by John Ray, F.R.S. London, 1727, p. 66.