[304] The Observatory, April, 1887.
[305] Evangeline, Part the Second, III.
[306] Legend of Robert, Duke of Normandy.
[307] Copernicus, vol. iii. p. 231.
[308] Ibid., p. 61.
[309] Cosmos, vol. i. p. 142.
[310] These apertures are computed from the formula, minimum visible = 9 + 5 log. aperture.
[311] Cosmos, vol. iii. p. 73.
[312] Darwin and Modern Science, p. 563.
[313] Journal, B.A.A., October, 1895.