weighs ninety-five grains. During this time, therefore, it has increased
ninety-five thousand times its original weight, and it has eaten sixty
thousand times its weight of food!

[Illustration: Fig. 3.--Empty Case of a Newly-moulted Cockroach.]

The change from the worm-like caterpillar to the butterfly is a great
one, and, if we did not know it so well, would be startling. This change
is known as a 'complete metamorphosis.' The dragon-fly is another insect
with a complete metamorphosis. How the dragon-fly moults you will see in
the illustration (fig. 1): even an acrobat might envy him!

Carefully examine the series of figures from A to D. The empty case at A
shows the last stage of the larval life. Out of this case the young
dragon-fly is just emerging. In C he has gained his freedom, and is
stopping to take breath and allow his wings to expand. By the time this
has taken place, they will be nearly as long as the body (as in D).

The locust furnishes us with an instance of what is known as 'incomplete
metamorphosis.' In other words, the young, when they emerge from the
egg, are very little different from the parent form. The youngest locust
in the illustration (fig. 2) is obviously a locust, though he lacks
wings; but there is no promise of the butterfly in the worm-like
caterpillar.

[Illustration: Fig. 2.--Stages of Locust's Growth.]

The cockroach, like the grasshopper and the locust, only undergoes an
incomplete metamorphosis. The empty case of a newly-moulted cockroach is
shown in fig. 3. The slit(s) along the back marks the spot where the
insect crept out.

[Illustration: Some More Toys from the Streets.]

TOYS FROM THE STREETS.

(_Continued from page 382._)

The most remarkable toy in our second illustration is that in the
middle. It is a wonderful Japanese screen or fan, which shuts up into
the space of a few inches. These fans are made in three sizes, the
largest, and the very latest, as far as invention goes, being eighteen
inches in diameter. The whole of the fan is made by machinery! An
amazing machine cuts out each layer of paper of the proper size and
shape, and when all the parts are ready, sticks them neatly together.
Most Japanese toys--which really _are_ Japanese, not mere imitations of
Japanese designs--are made by hand; but this one is due to machinery
alone.

The other toys in this picture are mostly machine-made, and their uses
can be easily seen. But the cup and ball, and