ILLUSTRATIONS

FIG.
[The Constellations of Orion and Taurus]
1. [An Orbit resulting from Attraction and Projection]
2. [The Moon's Orbit about the Earth]
3. [Changes of Orbit by Mutual Attraction]
4. [Velocity of Light measured by Jupiter's Satellites]
5. [Velocity of Light measured by Fizeau's Toothed Wheel]
6. [White Light resolved into Colors]
7. [Showing amount of Light received by Different Planets]
8. [Measuring Intensities of Lights]
9. [Reflection and Diffusion of Light]
10. [Manifold Reflections]
11. [Refraction by Water]
12. [Atmospherical Reflection]
13. [Refracting Telescope]
14. [Reflecting Telescope]
15. [The Cambridge Equatorial Refractor]
16. [The new Reflecting Telescope at Paris]
17. [Spectroscope, with Battery of Prisms]
18. [Spectra of Glowing Hydrogen and of the Sun]
19. [Illustrating Arcs and Angles]
20. [Measuring Objects by observing Angles]
21. [Mural Circle]
22. [Scale to measure Hundredths of an Inch]
23. [Spider-lines to determine Star Transits]
24. [Illustrating Triangulation]
25. [Measuring Distance to an Inaccessible Object]
26. [Measuring Elevation of an Inaccessible Object]
27. [Illustrating Parallax]
28. [Illustrating Stellar Parallax]
29. [Mode of Ascertaining Longitude]
30. [Relative Size of Sun, as seen from Different Planets]
31. [Zodiacal Light]
32. [Corona of the Sun in 1858—Brazil]
33. [Corona of the Sun in 1878—Colorado]
34. [Solar Prominences of Flaming Hydrogen]
35. [Changes in Solar Cavities during Rotation]
36. [Solar Spot]
37. [Holding Telescope to see the Sun-spots]
38. [Orbits and Comparative Sizes of the Planets]
39. [Orbit of Earth, illustrating Seasons]
40. [Inclination of Planes of Planetary Orbits]
41. [Inclination of Orbits of Earth and Venus]
42. [Showing the Sun's Movement among the Stars]
43. [Passage of the Sun by Star Regulus]
44. [Apparent Path of Jupiter among the Stars]
45. [Illustrating Position of Planets]
46. [Apparent Movements of an Inferior Planet]
47. [Apparent Movements of a Superior Planet]
47a. [A Swarm of Meteors meeting the Earth]
48. [Explosion of a Bolide]
49. [Flight of Bolides]
50. [The Santa Rosa Aerolite]
51. [Orbit of November Meteors and the Comet of 1866]
52. [Aspects of Remarkable Comets]
53. [Phases and Apparent Dimensions of Venus]
54. [The Earth and Moon in Space]
55. [Aurora as Waving Curtains]
56. [Tide resulting from Centrifugal Motion]
57. [Lunar Landscape]
58. [Telescopic View of the Moon]
59. [Illumination of Lunar Craters and Peaks]
60. [Lunar Crater "Copernicus"]
61. [Eclipses: Shadows of Earth and Moon]
62. [Apparent Sizes of Mars, seen from the Earth]
63. [Jupiter]
64. [Various Positions of Jupiter's Satellites]
65. [View of Saturn and his Rings]
66. [Perturbations of Uranus]
67. [Map: Circumpolar Constellations]
68. [Map of Constellations on the Meridian in December]
69. [Map of Constellations on the Meridian in January]
70. [Map of Constellations on the Meridian in April]
71. [Map of Constellations on the Meridian in June]
72. [Map of Constellations on the Meridian in September]
73. [Map of Constellations on the Meridian in November]
74. [Southern Circumpolar Constellations]
75. [Aspects of Double Stars]
76. [Sprayed Star Cluster below η in Hercules]
77. [Globular Star Cluster in the Centaur]
78. [Great Nebula about θ Orionis]
79. [The Crab Nebula above ζ Tauri]
80. [The Ring Nebula in Lyra]
81. [Showing Place of Ring Nebula]
82. [The Horizontal Pendulum]
[COLORED PLATE REPRESENTING VARIOUS SPECTA]
[MAPS TO FIND THE STARS]

I.

CREATIVE PROCESSES.

"In the beginning God created the heaven and the earth. And the earth was without form, and void; and darkness was upon the face of the deep."—Genesis i. 1, 2.

"Not to the domes, where crumbling arch and column
Attest the feebleness of mortal hand,
But to that fane, most catholic and solemn,
Which God hath planned,—
To that cathedral, boundless as our wonder,
Whose quenchless lamps the sun and stars supply;
Its choir the winds and waves, its organ thunder,
Its dome the sky." H. W. LONGFELLOW.

"The heavens are a point from the pen of His perfection;
The world is a rose-bud from the bower of His beauty;
The sun is a spark from the light of His wisdom;
And the sky a bubble on the sea of His power."
SIR W. JONES.

RECREATIONS IN ASTRONOMY.


I.