things, like comets, before they come.

Good-bye. I hope you will never cease to learn about and love the earth
and the sky. Perhaps you think you have learned a great deal already.
But your pleasures have only begun. Wait till you learn about how the
world began, the sun and all his planets, the distances between the
stars, and the millions of blazing suns amid the Milky Way!

THE END

[Illustration: THE SKY IN WINTER]

NOTE.--These simplified star maps are not as accurate as a planisphere,
but they may be easier for children. All star maps are like ordinary
maps, except that east and west are transposed. The reason for this is
that you can hold a star map over your head, with the pole star toward
the north, and the map will then match the sky. These maps contain some
constellations that are only for grown-ups to study. The Winter
constellations every child should know are:

AURIGA, the Charioteer
CANIS MAJOR, the Big Dog
CANIS MINOR, the Little Dog
CASSIOPEIA, the Queen in Her Chair
CYGNUS, the Swan
LEO, the Lion
ORION, the Hunter
PERSEUS, Which Has the Arc
TAURUS, the Bull
URSA MAJOR, the Great Bear
URSA MINOR, the Little Bear

[Illustration: THE SKY IN SPRING]

NOTE.--Once upon a time all the educated people spoke Latin. It was the
nearest approach to a universal language. So most of the constellations
have Latin names. The English, French and German names are all
different, but if all children would learn the Latin names they could
understand one another. The Spring constellations every child should
know are:

LEO, the Lion
LYRA, the Lyre
CASSIOPEIA, the Queen in her Chair
SCORPIO, the Scorpion
URSA MAJOR, the Great Bear
URSA MINOR, the Little Bear
VIRGO, the Virgin

[Illustration: THE SKY IN SUMMER]

NOTE.--Every sky map is good for three months, in this way: If this is
correct on June 1st at 10 P.M., it will be correct July 1st at 8 P.M.,
and August 1st at 6 P.M. This is because the stars rise four minutes
earlier every night. Thus, after thirty days, any star will rise thirty
times four minutes earlier, or 120 minutes, or two hours. Children need
not learn all the Summer constellations. The most interesting are:

AURIGA, the Charioteer
CANIS MAJOR, the Big Dog
CYGNUS, the Swan
LYRA, the Lyre
SCORPIO, the Scorpion

[Illustration: THE SKY IN AUTUMN]

NOTE.--This book tells how to find all the most interesting stars and
constellations wi