"And then," chimed in Susie, "it looked as though the fog broke up into pieces that rolled up in the sky, and floated off just like clouds."
[Illustration: The gully.]
"But what is that we see over the bottom land yonder?"
"It looks like fog," said Frank.
"More like steam, I think," said Donald.
"If it was up there against that blue sky instead of on the ground—" said Uncle Robert.
"Then it would be a cloud," said Susie. "Why, I never thought of that."
They had gone through the gate in front of the house, and were following the path that led down the slope to the spring.
"See how the water has plowed through the ground," said Frank, pointing to a gully the rain had made in the path.
"It took a good many rains to make that gully," said Donald.