"The idea is an original one.... Mr. Macfarlane has produced a very convenient and serviceable hand-book, available alike to the practical geologist, to the student of that science, and to the intelligent traveler who would like to know the country through which he is passing."--_Boston Evening Transcript_. New York: D. APPLETON & CO., 72 Fifth Avenue. * * * * * D. APPLETON & CO.'S PUBLICATIONS. RICHARD A. PROCTOR'S WORKS. _OTHER WORLDS THAN OURS: The Plurality of Worlds, Studied under the Light of Recent Scientific Researches._ By Richard Anthony Proctor. With Illustrations, some colored. 12mo. Cloth, $1.75. 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 Nebulæ: 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. 121110. 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.