<h2> COMETS AND METEORS. </h2>
<p>A few evenings later Mary had a wonderful
story to tell her brother about some visitors from
space who often visit the kingdom of Giant Sun.
"They are called comets, or hairy stars, but I
rather enjoy calling them 'celestial tramps.'"</p>
<p>"What are they like?" asked Harry.</p>
<h3 class="notop"> STORY OF COMETS. </h3>
<p>"They usually have a bright golden head, sometimes
as large as the earth, and as they approach
the sun they adorn themselves with a glittering
train millions of miles in length. Some of the
comets are regular visitors, and we know just when
to expect them; others come, and do not return for
hundreds of years, while a few visit the sun never
to return again."</p>
<p>"Where do they come from?" asked Harry.</p>
<div class="figcenter p6">
<ANTIMG src="images/i-104.jpg" width-obs="450" height-obs="470" alt="A COMET." />
<p class="caption">A COMET.</p>
</div>
<p>"We scarcely know," replied Mary, "except
<span class='pagenum'><SPAN id='Page_105' name='Page_105'>[105]</SPAN></span>
that it is from outer space, just like tramps on
earth. We do not know where tramps come from,
nor do we expect to see them again. If they do
revisit us, however, we can usually recognize
them. Do you remember the old man who came
to the kitchen door the other day and begged for
food? You felt so sorry for him. You would know
him if you saw him again on account of his long
white beard, white hair, and shabby clothes.</p>
<p>"When a celestial tramp returns, however, it is
<span class='pagenum'><SPAN id='Page_106' name='Page_106'>[106]</SPAN></span>
not so easy to recognize it. When it first greeted
us it may have had a large head and a gorgeous
train millions of miles in length. Next time we
see it, how it has changed! Its head may be
small, its train may have vanished, or it may be
the proud owner of three or four trains. A comet
usually changes its appearance at every visit.
Just as if the old man we saw the other day were
to cut off his beard, dye his hair black, and wear
Uncle Robert's dress-suit. We should not know
him, should we, Harry?"</p>
<div class="figcenter p6">
<ANTIMG src="images/i-105.jpg" width-obs="500" height-obs="340" alt="OLD PICTURE OF A COMET." />
<p class="caption">OLD PICTURE OF A COMET.</p>
</div>
<p>"I should think not," said Harry, laughing at
the very idea. "Then how can you tell when the
same comet visits us again?"
<span class='pagenum'><SPAN id='Page_107' name='Page_107'>[107]</SPAN></span></p>
<p>"Because it has a regular path marked out for
it in the sky," replied Mary, "and it travels along
that path unless something happens to it on the
way. It may go too near giant planet Jupiter.
Just like our tramp again. Let us suppose he has
a regular path marked out and it takes him across
Uncle Robert's farm and leads to our kitchen
door. We may expect to see Mr. Tramp to-morrow,
but as he crosses the farm a dog bites him
and frightens him away. Perhaps then we may
not see him again."</p>
<p>"Poor old man," laughed Harry. "I hope that
won't happen to him. Do the 'celestial tramps'
travel very quickly through the sky?"</p>
<p>"Not very quickly until they come close to the
sun. Then they rush around it ever so much
faster than an express train; but as they recede
from the sun they go more slowly until they seem
only to creep along, as if worn out by their
long journey. They also lose their trains after
they go away from the sun, and the train becomes
shorter and shorter, till the comet looks like a
round, fluffy ball, just as it did before it came too
<span class='pagenum'><SPAN id='Page_108' name='Page_108'>[108]</SPAN></span>
near the sun. It is the sun's heat that drives the
particles from the head of the comet and forms a
train."</p>
<p>"What are comets made of?" asked Harry.</p>
<p>"Of millions of tiny little particles covered
with coats of glowing gas. These particles are
made up of carbon, sodium, iron, and magnesium.
You will find plenty of sodium in the sea, while
common table salt is partly sodium. You know
what magnesium is. Some of that medicine
doctor gives you is made of it."</p>
<p>"So if I get some iron and salt and coal
and some of my medicine, and put them all
together, I should have a bit of a comet," said
Harry.</p>
<p>"But you must remember the coal, iron,
sodium, and magnesium must be very much
heated, and don't forget the coat of gas. Sometimes
a comet breaks into pieces, and the fragments
travel along by themselves as meteors."</p>
<p>"Sometimes the earth plunges through swarms
of meteors, which journey in regular paths around
the sun. At such a time, the bright masses seem
<span class='pagenum'><SPAN id='Page_109' name='Page_109'>[109]</SPAN></span>
to fall in showers from the sky. There are three
great showers which we always know when to expect.
Some come in August, some on the 13th
or 14th of November, and there is another shower
which always appears within a day or two of the
27th of November.</p>
<div class='poetry-container'>
<div class="poem">
<div class="stanza">
<p>"'If you November's stars would see,</p>
<p>From twelfth to fourteenth watching be,</p>
<p>In August too stars shine from heaven,</p>
<p>On nights between nine and eleven.'"</p>
</div>
</div></div>
<h3 class="notop"> STORY OF METEORS. </h3>
<p>"What are meteors?" asked Harry.</p>
<p>"Meteors are great masses of stone or iron
which sometimes weigh several tons. Lieutenant
Peary found one not long ago in the Arctic regions,
and it weighed about eighty tons. It is
lucky for us that many meteors do not fall on the
earth, or we should have to walk about with iron
umbrellas over our heads as a protection. When
they do fall on earth, they are much prized and
placed in our museums as curiosities.</p>
<p>"A story is told about a meteor that fell on a
<span class='pagenum'><SPAN id='Page_110' name='Page_110'>[110]</SPAN></span>
farm some time ago. The landlord said it belonged
to him, for when he rented the farm to the
tenant he claimed all minerals and metals found in
the ground.</p>
<p>"'But it was not on the farm when the lease
was made out,' said the tenant.</p>
<p>"'Then I claim it as flying game,' replied the
landlord angrily.</p>
<p>"'But it has neither wings nor feathers, so I
<span class='pagenum'><SPAN id='Page_111' name='Page_111'>[111]</SPAN></span>
lay claim to it as ground game,' said the tenant
in reply.</p>
<p>"While the dispute was going on the custom-house
officers seized the meteorite, because, as they
said, it had come into the country without paying
duty."</p>
<div class="figcenter p6">
<ANTIMG src="images/i-109.jpg" width-obs="500" height-obs="460" alt="A METEOR." />
<p class="caption">A METEOR.</p>
</div>
<p>"That is not a true story, is it?" asked Harry,
laughing.</p>
<p>"Scarcely," replied Mary; "but it was a good
joke on the landlord. And now we come to the
very smallest members of the family of Giant Sun.
I mean the shooting stars."</p>
<p>"Those bright little flying stars we can see at
night?" asked Harry.</p>
<h3 class="notop"> STORY OF A SHOOTING STAR. </h3>
<p>"Yes," replied Mary; "and if they could only
talk, what a wonderful story they would have to
tell! A shooting star is very much smaller than a
meteor, and the largest does not weigh more than
a quarter of an ounce. You could easily hold one
in your hand, for it is like a small stone, only, unlike
<span class='pagenum'><SPAN id='Page_112' name='Page_112'>[112]</SPAN></span>
a stone, it is always on the move. It hurries
along through space ever so much faster than an
express train, and all goes well as long as it keeps
above the blanket of air that surrounds the earth.
If it comes too near, however, it is sure to be
destroyed. It dashes into the air at the rate of
twenty-five miles a second, rubbing against every
particle it meets on its way. This makes it intensely
hot, until it glows with brilliant light.
We see it for a few moments as it flashes out
against the dark sky; but the light soon fades and
all that remains of the shooting star is its ashes.
Sometimes they sift down upon the earth and
settle on the tops of high mountains, or sink into
the ocean, or float in through an open window and
rest upon tables and books as fine dust. But
when our good housekeeper finds it there she
carefully removes it with her duster. She does
not know nor does she care where it came from; it
certainly has no right there, and she treats it with
small ceremony."</p>
<p>"I wonder what she would say if she knew that
the dust had come from the sky," said Harry.
<span class='pagenum'><SPAN id='Page_113' name='Page_113'>[113]</SPAN></span></p>
<p>"I do not think it would make any difference,"
said Mary, laughing. "And now I am going to
tell you a little story about a shooting star, and
then I must say good-night.</p>
<p>"It is said that the evil genii—you remember
reading about them in the Arabian Nights, don't
you, Harry?"</p>
<p>"Indeed I do," he replied.</p>
<p>"Well, at night they are said to fly up to the
gates of heaven and listen to the conversation of
the angels. When the angels see their hidden
foes, they hurl fiery shooting stars at them and
with so good an aim that for every shooting star
we may be sure there is one spirit of evil less in
the world."
<SPAN id='P113' name='P113'></SPAN></p>
<h3> STARLIGHT AT SEA. </h3>
<div class='poetry-container'>
<div class="poem">
<div class="stanza">
<p>Overhead the countless stars</p>
<p class="i1">Like eyes of love were beaming,</p>
<p>Underneath the weary Earth</p>
<p class="i1">All breathless lay a-dreaming.</p>
</div>
<div class="stanza">
<p>The twilight hours like birds flew by,</p>
<p class="i1">As lightly and as free;</p>
<p>Ten thousand stars were in the sky,</p>
<p class="i1">Ten thousand in the sea.</p>
<span class='pagenum'><SPAN id='Page_114' name='Page_114'>[114]</SPAN></span></div>
<div class="stanza">
<p>For every wave with dimpled face</p>
<p class="i1">That leaped upon the air</p>
<p>Had caught a star in its embrace</p>
<p class="i1">And held it trembling there.</p>
</div>
<div class="stanza">
<p><span class="flright">—<span class='smcap'>Amelia B. Welby.</span></span></p>
</div>
</div></div>
<p><span class='pagenum'><SPAN id='Page_116' name='Page_116'>[116]</SPAN></span></p>
<div class="figcenter p6">
<ANTIMG src="images/i-114.jpg" width-obs="550" height-obs="388" alt="LICK OBSERVATORY." />
<p class="caption">LICK OBSERVATORY.</p>
<SPAN id='P116' name='P116'></SPAN></div>
<div style="break-after:column;"></div><br />