had a great desire to go down and see
what they were doing; but he felt weak and tired, and so, after looking
on a moment, he said to himself, "I had rather sit down here." So he sat
down upon the step of the door, and looked on.

After the boys had thrown one or two large stones into the water, they
took hold of the wheelbarrow, and, then, tipping it up, the whole load
slid down into the water, close to the shore. The boys then came back,
wheeling the great wheelbarrow up into the road.

They went after another load of stones, and Caleb's curiosity was so far
awakened, that he rose slowly, and walked down towards the place. In a
few minutes, the boys came back with their load; David wheeling, and
Dwight walking along by his side, and pushing as well as he could, to
help. As soon as he saw Caleb, he began to call out,

"O Caleb, you were afraid of a cow!"

Caleb looked sad and unhappy. David said,

"I would not laugh at him, Dwight. Caleb, we are building a mole."

"A mole!" said Caleb. "What is that?"

"Why, it is a kind of wharf, built out far into the water, to make a
harbour for our shipping. We learned about it in our geography."

"Yes," said Dwight, coming up, eagerly, to Caleb, "you see the current
carries all our vessels down the stream, you know, Caleb, and we are
going to build out a long mole, out into the middle of the brook, and
that will stop our vessels; and then we are going to make it pretty
wide, so that we can walk out upon it, and the end of it will do for a
wharf."

"Yes, it will be a sort of harbour for 'em," said David.

Caleb looked quite pleased at this plan and wanted the boys to let him
help; and Dwight said he might go and help them get their next load of
stones.

But Caleb did not help much, although he really tried to help. He kept
getting into the other boys' way. At last Dwight got out of patience,
and said,

"Caleb, you don't help us the least mite. I wish you would go away."

But Caleb wanted to help; and Dwight tried to make him go away.
Presently, he began to laugh at him for being afraid of a cow.

"I suppose I could frighten you by _moo-ing_ at you, Caleb."

Caleb did not answer, but walked along by the side of the wheelbarrow.
David was wheeling it; for they had now got it loaded, and were going
back to the shore of the brook, Caleb on one side, and Dwight upon the
other. Dwight saw that Caleb hung his head, and looked confused.

"_Moo! moo!_" said Dwight.

Ca