ILLUSTRATIONS IN TEXT

Big Dipper Earth's Crust The Ancient World Cygnus, the Swan Orientation of Orion Orientation of Orion The Big Dipper Arcturus The Big Dipper Stars The Little Dipper Orientation of Little Dipper The Great Bear's Feet The Two Bears and Draco, the Dragon The Little Bear's Tail The Great Bear Draco Former Pole Star Cepheus Cassiopeia and Cepheus Cepheus symbol Perseus, Andromeda and Pegasus Perseus and the Star Algol The "W" of Cassiopeia Orientation of Cassiopeia Stars in Cassiopeia Stars in Cassiopeia Perseus The Chain of Andromeda Stars of Andromeda The Square of Pegasus Job's Coffin Stars of Pegasus The Winged Horse Cetus Cetus, the Whale Myra, the Wonderful Triangulum, Aries and Pisces Leo Leo, the Lion Triangle of Leo Constellation of Leo Radiant Point of November Meteors Radiant Point of Shooting Stars Præsepe Berenice's Hair Ancient Position of Leo's Tail Present Configuration of Leo Boötes Arcturus Canes Venatici Parallax Angles of Star The Northern Crown Ariadne's Crown Hercules The Head Stars of Hercules and Ophiuchus Cluster of Hercules Lyra Precessional Orbit of the Pole Stars and Ring Nebula in Lyra Harp of Orpheus The Great Northern Cross The Cross in the West Cygni Albireo, on Cygnus, the Swan Aquila The Three Birds The Shaft of Altair Delphinus Delphinus, the Dolphin Sagittarius The Bow, the Scorpion and Hydra's Tail The Bow and Arrow The Milk Dipper The Southern Pointers Hydra Double Stars on Hydra Constellation of Hydra Auriga Capella and the Kids Perseus and Capella The Big Dipper and Capella Locating Vega, Capella and Arcturus Spica Field of nebulæ Relative Position of Virgo Relative Position of Arcturus and Spica Antares Scorpio Formalhaut Urn of Aquarius The Sky Sea Sirius Orion and the "Dog Star" The winter battle Orion The Lion's Skin Betelgeuse Rigel Eridanus Orion, the Hunter Orion's Head Orion's Belt Nebula of Orion Orion's Dogs Taurus Taurus with Horns The Hyades The Pleiades The Stars of the Pleiades The December Sky Castor and Pollux The Heavenly Twins Gemini, Orion and Taurus Relative Positions of Constellations Tanabata and Hirkboshi The Two Crosses Alpha and Beta Centauri Solar Prominences Hydrogen Flames on Sun Sun Spots Direct Photograph of Sun Annular Eclipse Position of Sun, Moon and Earth During Eclipse The Solar Corona Orbits of Outer Planets Plane of Earth's Orbit Orbit of Comet Tail of Comet Comet 1910 Phases of Venus Venus, showing Crescent Phase The Planet Jupiter Polar Caps and Surface Markings on Mars Rings of Saturn Aspects of Saturn's Rings Earth's Shadow Earth-lit New Moon The "seas" of the Moon Mountains of the Moon "Seas" of the Crescent Moon Craters of the Moon Plato Lunar Craters