CONTENTS.--Introduction.--What the Earth teaches us.--What we learn from the Sun.--The Inferior Planets.--Mars, the Miniature of our Earth.--Jupiter, the Giant of the Solar System.--Saturn, the Ringed World.--Uranus and Neptune, the Arctic Planets.--The Moon and other Satellites.--Meteors and Comets: their Office in the Solar System.--Other Suns than Ours.--Of Minor stars, and of the Distribution of Stars in Space.--The Nebulae: are they External Galaxies?--Supervision and Control. _OUR PLACE AMONG INFINITIES_. A Series of Essays contrasting our Little Abode in Space and Time with the Infinities around us. To which are added Essays on the Jewish Sabbath and Astrology. 12mo. Cloth, $1.75. CONTENTS.--Past and Future of the Earth.--Seeming Wastes in Nature.--New Theory of Life in other Worlds.--A Missing Comet.--The Lost Comet and its Meteor Train.--Jupiter.--Saturn and its System.--A Giant Sun.--The Star Depths.--Star Gauging.--Saturn and the Sabbath of the Jews.--Thoughts on Astrology. _THE EXPANSE OF HEAVEN_. A Series of Essays on the Wonders of the Firmament. 12mo. Cloth, $2.00. CONTENTS.--A Dream that was not all a Dream.--The Sun.--The Queen of Night.--The Evening Star.--The Ruddy Planet.--Life in the Ruddy Planet.--The Prince of Planets.--Jupiter's Family of Moons.--The Ring-Girdled Planet.--Newton and the Law of the Universe.--The Discovery of Two Giant Planets.--The Lost Comet.--Visitants from the Star Depths.--Whence come the Comets?--The Comet Families of the Giant Planets.--The Earth's Journey through Showers.--How the Planets Grew.--Our Daily Light.--The Flight of Light.--A Cluster of Suns.--Worlds ruled by Colored Suns.--The King of Suns.--Four Orders of Suns.--The Depths of Space.--Charting the Star Depths.--The Star Depths Astir with Life.--The Drifting Stars.--The Milky Way. _THE MOON: Her Motions, Aspect, Scenery, and Physical Conditions_. With Three Lunar Photographs, Map, and many Plates, Charts, etc. 12mo. Cloth, $2.00. CONTENTS.--The Moon's Distance, Size, and Mass.--The Moon's Motions.--The Moon's Changes of Aspect, Rotation, Libration, etc.--Study of the Moon's Surface.--Lunar Celestial Phenomena.--Condition of the Moon's Surface.--Index to the Map of the Moon. _LIGHT SCIENCE FOR LEISURE HOURS_. A Series of Familiar Essays on Scientific Subjects, Natural Phenomena, etc. 12mo. Cloth, $1.75. [Illustration: JOHN BACH McMASTER.] _HISTORY OF THE PEOPLE OF THE UNITED STATES_, from the Revolution to the Civil War. By JOHN BACH McMASTER. To be completed in six volumes. Vols. I, II, III, and IV now ready. 8vo, cloth, gilt top, $2.50 each.