.

PAGE.
A HALF-HOUR ON THE STRUCTURE OF THE TELESCOPE 1 CHAPTER II.
A HALF-HOUR WITH ORION, LEPUS, TAURUS, ETC.

33 CHAPTER III.
A HALF-HOUR WITH LYRA, HERCULES, CORVUS, CRATER, ETC.

47 CHAPTER IV.
A HALF-HOUR WITH BOOTES, SCORPIO, OPHIUCHUS, ETC.

56 CHAPTER V.
A HALF-HOUR WITH ANDROMEDA, CYGNUS, ETC.