It is this motion that makes day and night for us.

As the earth rolls over and over, the side of the earth upon which the sun shines has day; the other side has night. It seems to us that the earth does not move at all.

The sun seems to rise in the east, and go up and up, and then go down in the west.

Thus we say, the sun rises in the east and sets in the west. But this is not so.

It seems to be so because of the motion of the earth around itself from west to east.

LESSON XLII.

plăn'ets

dif'fer ent

těl'e scōpès

THE MOON.

All of you know where to look for the moon. You know also that the moon is not so bright as the sun.

But you may not know how large it is; where it gets its light; how fast it moves; who the man in the moon is;

and how many little boys and girls, if any, are in the moon.

First, let me say that no man ever went from the earth to the moon.

What we know of the moon, man has seen through a great, big, long eye called a telescope, which he made to help him to look very far and very strong.

To our eyes, the moon appears to be larger than the sun, or any of the planets.

But it is really the smallest body that we see in the sky.

It appears large, because it is so much nearer to us than the others.

The pale, beautiful light of the moon makes night cheerful. We have but one moon, and we enjoy it greatly.

Think how beautiful it must be on. some of the planets that have four, six, and eight moons to shine upon them with different colored lights!

CONVERSATIONAL LESSON.

TIDES AND WAVES.

The wind blows over the surface of the water, and causes it to rise and fall in ridges, or waves. In the open sea, waves are larger and move more rapidly than they do upon the surface of lake, or bay, or river,

Waves do not occur regularly; they are surface movements only; and are caused by the wind.

Tides are waves, too. But, they are not caused by the wind; they stir the sea at its greatest depths ; they occur as regularly as day and night.

The tide is a vast wave. All the waters of the sea rise into two mighty ridges: the one directly under the moon; the other 180° distant, on the opposite side of the earth.

Tides are caused by the sun and moon acting upon the earth. The moon is the nearer, and has the greater power over the waters of the earth, and draws them up toward itself.

As the earth rolls over, all places come one after another under, and opposite the moon. So, the great tide waves travel from east to west over every part of the sea.

Rising water is flood tide. Falling water is ebb tide. The highest level reached is high tide, or high water; at which point, the wave rests for a few moments. The lowest level reached is low tide, or low water; at which point, the waters again rest.

There are four daily tides; two high, and two low. Time-from high, to low tide, 6 hours; from high tide to high tide, or low tide to low tide, 12 hours 26 minutes. High tide occurs 52 minutes later each day.

Spring tides occur at new, and full moon; the waters rise higher at the flood and sink lower at the ebb than usual. Neap tides occur at the first, and third quarters of the moon; high tide is then lower, and low tide is higher than usual. The spring tides of March and September are the highest of the year. Thus tides have their daily, monthly, and yearly periods.

Do you think rats are nice animals ? Do you? You? You? No? Well, neither do I. But it may be because I do not know them well enough, or because I have known only bad things about them.

After reading the following stories

about them, I must say, that a single rat may be a very interesting fellow.

Rats in quantities are not pleasant things to have about a house: one may be very agreeable; but many are a nui

sance.

Rats are so cunning and work with so much intelligence, that some of the stories about them seem like fables.

It is known that they will carry eggs from the bottom to the top of a house, lifting them from stair to stair. The first rat, standing on his hind legs, pushes the egg up, and the second lifts it with his fore legs.

Rats will draw the cork out of a bottle of oil, dip in their long tails, and repeat this action until they have drawn off every drop of the contents.

Not long ago, a rat was seen to climb upon a table on which stood a plate of figs. He, at once, tossed the plate over and scattered the figs upon the floor beneath, where about twenty of his expectant brother-rats were waiting for a treat.

A gentleman on a journey through