[244] The Observatory, February, 1900, pp. 106-7.
[245] Knowledge, March, 1893, p. 51.
[246] Ibid., July 3, 1885, p. 11.
[247] Cosmos, vol. i. p. 108 (Otté’s translation).
[248] Ibid., vol. i. p. 124.
[249] Ibid., vol. i. p. 119, footnote.
[250] Copernicus, vol. i. p. 72.
[251] Ibid.
[252] Astrophysical Journal, June, 1909, pp. 378-9.
[253] Knowledge, July, 1909, p. 264.