Vlll 



ILLUSTRATIONS. 



Fg 



Tail-piece Bailey's Cornet, .... 48 



Illustrated Title Astronomy, ... 49 



Sun at Midnight at the North Cape, ... 51 

 Vertical and Horizontal Kays of the Sun, 

 Spots in the Sun, .... 

 Eclipses of the Sun, . 68,59 

 Annular Eclipse, . . . .69 



Corona encircling the Moon in a Solar Eclipse, . 62 



Zodiacal Light, 62 



Orbits of the Planets, .... 64 



Transit of Mercury, ..... 65 



Orbit of Venus, ..... 67 



Physical constitution of Venus, . . .69 



Vessels at Sea, shewing the Rotundity of the Earth, 70 



Sycne, near Alexandria, .... 71 



Translation of the Earth in space, . 73 



Orbit of the Earth, ..... 73 



Precession of the Equinoxes, . . . .74 



Atmosphere of the Earth, .... 75 



Tail-piece Sunset, ..... 75 



Initial Letter Moonlight, .... 76 



Phases of the Moon, ..... 77 



Eclipse of the Moon, .... 79 



Uneven Surface of the Moon, .... 83 



Tail-piece Moonlight at Sea, ... 88 



Initial Letter, ...... 89 



Aspect of Mars, ..... 91 



Aspect of the Earth viewed from Mars, . . 91 



Aspect of Jupiter, ..... 95 



Jupiter and his Satellites, . . . .90 



The Thames by Moonlight, ... 87 



Saturn and his Rings, ..... 98 



Orbit of Saturn, ..... 100 



Phases of Saturn, ..... 100 



Rings of Saturn, ..... 101 



Comparative size of the Sun as seen from the Planets, 105 

 Relative bulk of the Planets, . . . .106 



Initial Letter, ..... 108 



Path of the Comet of 1C80, . . . .110 



Tail of a Comet, Ill 



Comet of 1456, as seen at Constantinople, . . 115 



Comet of 1835, ..... 116 

 Fancied Forms of Comets, copied from a Celestial 



Atlas of 1680, 116 



Comet of 1744, ..... 118 



Schroeter and Bessel's Drawings of the Comet of 1807, 119 



Comet of 1811, as seen at Winchester, . . 120 



Comet of 1811, 121 



Telescopic view of Encke's Comet, . . . 122 



Orbit of the Comet of 1832, ... 123 



Comet of 1843, as seen on the Essequibo, . . 126 



Various appearances of 118116/8 Comet in 1833, . 127 



Initial Letter, 130 



Meteoric Shower in Greenland, . . . 138 



Meteoric Shower at the Falls of Niagara, . . 139 



Meteoric Shower on Lake Niagara, . . 140 

 Radiation of Meteors, . . . . .141 



Orbit of Meteoric Shower of Nov. 13, 1833, . 142 



Initial Letter, 143 



Mouth of the Dardanelles, .... 145 



Banks of the Euphrates, .... 145 



Constellations 



Aries, ...... 149 



Tanrus, Gemini, Cancer, . . . .150 



Leo, Virgo, Libra, Scorpio, Sagittarius, . 151 



Capricornus, Aquarius, Pisces, . . . 152 



The Pointers in Ursa Major, ... 153 



Ursa Major moving round the Pole, . . 153 



Orion, 154 



Southern Cross, 155 



Pge 

 158 



. 160 

 161 



. 162 

 166 



. 167 

 1C9 



. 170 

 173, 174 

 . 174 

 175 



. 179 

 180 



. 181 

 182 



. 184 

 184 



. 187 

 187 



. 188 

 192 



. 193 

 194 



. 195 

 193 



. 190 

 200 



. 201 

 202 



. 211 

 213 



. 215 

 215 



. 216 

 217 



. 218 

 220 



. 222 

 224 



. 225 

 226 



. 227 

 223 



. 231 

 237 

 238 



. 239 

 241 

 Peveril of the Peak's Castle, with the Mouth of the 



Cave, 243 



The Cupola Cavern, 



Organ, Blue John Cavern, 



Kirkdale Cave, 



Kent's Cave, near Torquay, . . . .253 



Gailenreuth, ..... 



Section of Gailenreuth Cave, . 



Grotto del Cane, 



Caverns of Dudley Castle, . . 257 



Entrance to Odin's Mine, . 



Initial Letter Fountain of Arethusa, . . 259 



Castalian Spring on Mount Parnassus, . . 260 



St Winifred's Well, . . . 264 



Intermittent Spring, 



Artesian Well, 



Pool of Siloam, 



The Great Geyser, Iceland, 



Ebullient Spring, ..... 



Dripping Well, Knaresborongh, 



Initial Letter Falls of Tivoli, 



The Susquehanna, ..... 2S1 



Initial Letter, 



Herschel's Telescope, .... 



Parallax, ...... 



Earth's distance from the Stars, 



Initial Letter, ..... 



New Star observed in 1572, 



Supposed Orbit of a temporary Star, 



Variable Star observed in 1596, 



Binary Stars, ..... 



Theory of Double Stars, 



Positions of Double Stars in different years, 



Tail-piece The Earth, .... 



Initial Letter, ..... 



Architecture of the Stellar Universe, . 



Nebula in Hercules, .... 



Nebula in Andromeda, . . 



Planetary and Double Nebulae, 



Crab Nebula, . 



Dumb-bell Nebula, .... 



Spiral Nebulae, ..... 



Tail-piece Nebulae, 



Illustrated Title Physical Geography, 



Port of Sidon from the Sea, 



Chart of the World, .... 



Leuctra and Cape Matapan, . 



Mouth of the Bosphorus, 



Initial Letter, . 



Mount Egmont in New Zealand, 



Peter Botte Mountain, .... 



Cotopaxi, 



Mount Etna, from Syracuse, 



Bolivian Plateau, .... 



Mexican Plateau, . 



Plateau of Central Asia, 



Initial Letter, . 



Defile of the Darial, . 



Glacier of the Rhone, .... 



Dovedale, 



Great Plain of the Caucasus, 



Mount Kasibeck, and Steppes of the Caucasus, 



Lake of Mandia, .... 



Sand-storm in the Desert, 



Ruins of Palmyra, from the Desert, 



Llanos of Badajoz, 



The Pyrenees from the Great Plain of LangueJoc, 



Initial Letter Kirkdale Cave, 



Jorullo, Mexico, 



Cave of Fingal, 



