"Yes, it was a heavy storm for a few minutes," said Mr. Blake. "But it will soon be over, and the rain will do the gardens good, though the hail may hurt them some."

By the time Hal and his father reached the porch the hail had stopped and it was only raining. Mrs. Blake, Aunt Lolly and the others were anxiously waiting.

"I thought maybe he had been struck by lightning," said Mab.

"Pooh! I wasn't afraid!" boasted Hal.

"I guess you were thinking too much about your corn," said his father with a laugh. "It was very good of you, but you mustn't do such a thing again. Now you'll have to get dry clothes on. But wait until I show you how a hail stone looks inside."

Daddy Blake ran out into the storm and came back with a handful of the queer, frozen stones. He let Hal and Mab look at them, and then, taking a large one, he held it on top of the warm stove for a second, until the chunk of ice had melted in half.

"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."