in
Nature, July 1, 1909, p. 20.
28
English Mechanic, July 23, 1909.
29
Nature, December 22, 1892.
30
Celestial Objects, vol. i. p. 52, footnote.
32
Astronomy and Astrophysics, 1892, p. 618.
33
Nature, August 7, 1879.
34
The World of Space, p. 56.
35
Nature, September 15, 1892.
36
Observatory, 1880, p. 574.
37
Knowledge, November 1, 1897, pp. 260, 261.
38
Worlds in the Making, p. 61.
41
Cel. Objects, vol. i. p. 66 (5th Edition).
42
Celestial Objects, vol. i. p. 65 (5th Edition).
46
Nature, October 17, 1895.
48
Nature, October 6, 1887.
50
Copernicus, vol. ii. p. 168.
51
Cosmos, vol. iv. p. 476, footnote.
52
Denning, Telescopic Work for Starlight Evenings, p. 153.
54
Nature, July 13, 1876.
55
P. M. Ryves in Knowledge, June 1, 1897, p. 144.
56
Bulletin, Ast. Soc. de France, August, 1905.
57
Nature, April 5, 1894.
58
Nature, May 14, 1896. Some have attributed these “luminous clouds” to light reflected from the dust of the Krakatoa eruption (1883).
59
The Observatory, 1877, p. 90.
60
Popular Astronomy, vol. 11 (1903), p. 293.
61
Popular Astronomy, vol. 13 (1905), p. 226.
62
Nature, July 25, 1901 (from Flammarion).
63
Popular Astronomy, vol. 11 (1903), p. 496.
64
Kinetic Theories of Gravitation, Washington, 1877.
65
The Observatory, June, 1894, p. 208.
67
Astrophysical Journal, vol. 14 (1901), p. 238, footnote.
68
Mars as the Abode of Life, p. 52.
69
Second Book of the Maccabees v. 1-4 (Revised Edition).
70
Humboldt’s Cosmos, vol. i. p. 169 (Otté’s translation).
71
Quoted by Grant in History of Physical Astronomy, p. 71.
73
Exposition du Système du Monde, quoted by Carl Snyder in The World Machine, p. 226.
74
Worlds in the Making, p. 63.
75
Cosmos, vol. i. p. 131.
76
The Observatory, June, 1909, p. 261.
77
Astronomical Essays, pp. 61, 62.
78
Encyclopædia Britannica (Schiraz).
79
Monthly Notices, R.A.S., February, 1905.
80
Nature, March 3, 1870.
81
Ibid., March 31, 1870, p. 557.
82
Prof. W. H. Pickering found 12 times (see p. 1).
83
Nature, January 30, 1908.
84
Nature, September 5, 1901.
86
Nature, October 16, 1884.
87
Nature, February 19, 1885.
88
Nature, January 14, 1909, p. 323.
89
Photographic Atlas of the Moon, Annals of Harvard Observatory, vol. li. pp. 14, 15.
90
Nature, January 18, 1906.
91
Humboldt’s Cosmos, vol. iv. p. 481.
93
Monthly Notices, R.A.S., June, 1895.
94
Humboldt’s Cosmos, vol. iv. p. 483 (Otté’s translation).
95
Grant, History of Physical Astronomy, p. 229.
96
Popular Astronomy, vol. xvii. No. 6, p. 387 (June-July, 1909).
97
Nature, October 7, 1875.
98
Mars as an Abode of Life (1908), p. 281.
99
Knowledge, May 2, 1886.
100
Nature, March 12, 1908.
101
Bulletin, Ast. Soc. de France, April, 1899.
102
Astronomy and Astrophysics (1894), p. 649.
103
Nature, April 20, 1905.
104
Astrophysical Journal, vol. 14 (1901), p. 258.
105
Nature, August 22, 1907.
106
Popular Astronomy, vol. 12 (1904), p. 679.
