LIST OF ILLUSTRATIONS.

FigurePage
1.The Sun’s Surroundings[4]
2.View of the Sun on Sept. 20, 1870[6]
3.The Sun on Sept. 22, 1870[6]
4.The Sun on Sept. 26, 1870[7]
5.The Sun on Sept. 19, 1870[8]
6.The Sun on Sept. 20, 1870[8]
7.The Sun on Sept. 21, 1870[9]
8.The Sun on Sept. 22, 1870[9]
9.The Sun on Sept. 23, 1870[10]
10.The Sun on Sept. 26, 1870[10]
11.Nasmyth’s Willow Leaves[11]
12.The Cactus Type[12]
13.Equatorial Telescope and Projection[13]
14.Polarizing Eye-piece[14]
15.Spot of Sept. 21, 1870[15]
16.Spot of March 5, 1873[15]
17.Sun on March 5, 1873[18]
18.“The Plume” Spot of March 5 and 6, 1873[19]
19.Typical Sun-spot of December, 1873[21]
20.Frost Crystal[23]
21.Cyclone Spot[24]
22.Spot of March 31, 1875[25]
23.Cirrous Cloud[27]
24.Spot of March 31, 1875[28]
25.Typical Illustration of Faye’s Theory[29]
26.Spot of Oct. 13, 1876[30]
27.Photograph of Edge of Sun[31]
28.Facula[33]
29.Lunar Cone Shadow[36]
30.Track of Lunar Shadow[39]
31.Inner Corona Eclipse of 1869[40]
32.Sketch of Outer Corona, 1869[41]
33.Tacchini’s Drawing of Corona of 1870[43]
34.Watson’s Naked-eye Drawing of Corona of 1870[44]
35.Photograph showing Commencement of Outer Corona[45]
36.Eclipse of 1857, Drawing by Liais[48]
37.Enlargement of Part of [Fig. 38][49]
38.Fac-simile of Photograph of Corona of 1871[51]
39.“Spectres”[54]
40.Outer Corona of 1878[57]
41.Spectroscope Slit and Solar Image[59]
42.Slit and Prominences[59]
43.Tacchini’s Chromospheric Clouds[62]
44.Tacchini’s Chromospheric Clouds[62]
45.Vogel’s Chromospheric Forms[64]
46.Tacchini’s Chromospheric Forms[66]
47.Eruptive Prominences[67]
48.Sun-spots and Price of Grain[77]
49.Sun-spot of Nov. 16, 1882, and Earth[80]
50.Greenwich Record of Disturbance of Magnetic Needle, Nov. 16 and 17, 1882[81]
51.Sun-spots and Magnetic Variations[87]
52.Greenwich Magnetic Observations, Aug. 3 and 5, 1872[89]
53.One Cubic Centimetre[93]
54.Pouillet’s Pyrheliometer[93]
55.Bernières’s great Burning-Glass[103]
56.A “Pour” from the Bessemer Converter[105]
57.Photometer-box[108]
58.Mouchot’s Solar Engine[109]
59.Ericsson’s new Solar Engine, now in Practical Use in New York[113]
60.Saturn[119]
61.The Equatorial Telescope at Washington[122]
62.Jupiter, Moon, and Shadow[125]
63.Three Views of Mars[129]
64.Map of Mars[129]
65.The Moon[137]
66.The Full Moon[141]
67.Glass Globe, Cracked[145]
68.Plato and the Lunar Alps[149]
69.The Lunar Apennines: Archimedes[153]
70.Vesuvius and Neighborhood of Naples[157]
71.Ptolemy and Arzachel[161]
72.Mercator and Campanus[165]
73.Withered Hand[168]
74.Ideal Lunar Landscape and Earth-shine[169]
75.Withered Apple[171]
76.Gassendi. Nov. 7, 1867[173]
77.The Camp at Mount Whitney[177]
78.Vesuvius during an Eruption[183]
79.Meteors observed Nov. 13 and 14, 1868, between Midnight and Five o’Clock, a. m.[189]
80.Comet of Donati, Sept. 16, 1858[201]
81.“A Part of a Comet”[203]
82.Comet of Donati, Sept. 24, 1858[205]
83.Comet of Donati, Oct. 3, 1858[209]
84.Comet of Donati, Oct. 9, 1858[213]
85.Comet of Donati, Oct. 5, 1858[217]
86.Types of Stellar Spectra[222]
87.The Milky Way[225]
88.Spectra of Stars in Pleiades[231]
89.Spectrum of Aldebaran[235]
90.Spectrum of Vega[235]
91.Great Nebula in Orion[239]
92.A Falling Man[243]
93.A Flash of Lightning[245]