This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations.

This book contains essays on subjects including: Sir John Herschel; the planet Mars; Saturn's rings; meteors and shooting stars; the zodiacal light; the solar corona; the sun's journey through space; distribution of the nebulae; a new ...