It may be proper to remark that the language used by the writer in a volume[1] published several years since, and now nearly out of print, has been occasionally adopted in the following treatise.

Bloomington, Indiana, April, 1873.


CONTENTS.

PAGE.
Preface[3]
CHAPTER I.
A General View of the Solar System[9]
CHAPTER II.
Comets[13]
Comets Visible in the Day-Time[15]
Periodic Comets[18]
CHAPTER III.
Comets whose Elements indicate Periodicity, butwhose Returns have not been recognized[31]
CHAPTER IV.
Other Remarkable Comets[39]
CHAPTER V.
The Position and Arrangement of Cometary Orbits[43]
CHAPTER VI.
The Disintegration of Comets[49]
CHAPTER VII.
Meteoric Stones[57]
CHAPTER VIII.
Shooting-Stars—Meteors of November 14[69]
CHAPTER IX.
Other Meteoric Streams[82]
CHAPTER X.
The Origin of Comets and Meteors[94]

I.
COMETS.