"What's your idea, Tom?" asked Jack.
"Why, to make the snow protect us against itself."
"But how?"
"Why, by building a little snow bank between the big snow bank and the house, hammering it into solid ice, with our mauls, and in that way making a ditch that will carry off the water around the end of the house and down over the cliff."
"That's a superb idea, Tom," said Jack, "and we'll get to work at it at once. I'd give the proceeds of all my winter's work for a head half as good as yours, Tom."
"Oh, pshaw!" said Tom. "My head isn't of much account. It is only that I look straight at things and try to use common sense."
"Yes," said the Doctor, "and that is what we call 'genius' in science. It is the men who 'look straight at things and try to use common sense' who do the great things in science. Darwin did that, and so did Asa Gray, and Edison, and Agassiz, and all the rest of them. Scientific genius is nothing in the world but common sense, reinforced by a habit of observation."
But there was no further time for talk. The boys quickly built a low snow embankment between their house and the great snowdrift, and beat it down with their mauls, into a condition of solid ice. With this barrier to aid them they succeeded in compelling the water from the rain and the melting snow to flow in a sort of ditch around their house, and to cease flowing through it.
Inside, however, the condition of things was deplorable. The earthen floor under the bunks was a mud hole. The broom straw that constituted the beds was soaking wet, and the task of drying it promised to be no easy one.
"We've simply got to sleep on hard clapboards for two or three nights," said Ed.