"See the queer rings inside it," Daddy Blake said to the children and,
looking, they noticed that the hail stone was made up of different layers
of ice, just as some kinds of candy are made in sections.
"What makes it that way--like an onion," asked Hal, for the hail stone did
look a bit like an onion that has been sliced through the centre.
"It is because the hail is made up of different layers of ice," answered
Daddy Blake. "It is supposed that a hail stone is a frozen rain drop. In
the tipper air it gets whirled about, first going into a cold part that
freezes it. Then the frozen rain drop is tossed down into some warm air,
or a cloud where there is water. This water clings to the frozen centre
and then is whirled upward again. There is another freeze, and so it goes
on, first getting wet and then freezing until, after having been built up
of many layers of ice and frozen rain, the hail stone falls to the
ground."
"My!" exclaimed Mab. "I didn't know hail stones were so wonderful."
"Neither did I," added Hal.
When Hal had changed his clothes he told how it was he happened to run out
into the garden during the heavy hail storm.
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