ch trouble about stopping
the train."

"Oh, well, he didn't mean to, so we'll forget all about it. I'll come
back and get you when we stop," he said.

A little later the train slowed up. It did it so easily that no one fell
out of his seat this time, and, pretty soon, back came the conductor to
get Bunny and Sue.

The engine had stopped near a big wooden tank filled with water, and
some of this water was running through a big pipe into the tender of the
engine. The tender is the place where the coal is kept for the
locomotive fire.

"Hello, Jim!" called the conductor to the engineer who was leaning out
of the window of his little house. "Here's the boy who stopped the train
so suddenly a while back."

"Oh ho! Is he?" asked the engineer. "Well, he isn't a very big boy, to
have stopped such a big train."

"I--I didn't mean to," said Bunny, and he and Sue looked back, and saw
that truly it was a long train. And the locomotive pulling it was a very
big one.

"Well, you didn't do much damage," laughed the engineer.

"I'm going to bring them up to see you," the conductor said.

"That's right, let 'em come!"

The engineer came out of his cab and took first Bunny, and then Sue,
from the conductor, who lifted them up to the iron step near the boiler.
A hot fire was burning under the engine to make steam, and Bunny and Sue
looked at it in wonder.

Then the engineer took them up in his cab, and showed Bunny where, on
the ceiling, was the little air whistle--the one Bunny had blown when he
pulled the cord with the parasol. Then the engineer showed the children
the shiny handle that he pulled to make the engine go ahead, and another
that made it go backward. Then he showed a little brass handle.

"This is the one I pulled on in a hurry when I heard you blow the
whistle once," he said.

"What handle is that?" asked the little boy.

"That's the handle that puts on the air brakes," said the engineer. "And
over here is the rope the fireman pulls when he wants to ring the bell.
I'll let you ring it."

"And me, too?" asked Sue.

"Yes, you too!" laughed the engineer.

First Bunny pulled on the rope that was fast to the big bell on the top
of the engine, near the smoke-stack where the puffing noise sounded.
Bunny could hardly make the bell ring, as it was very heavy, but finally
he did make it sound:

"Ding-dong!"

"Now it's my turn!" cried Sue.

She could only make the bell ring once:

"Ding!"

But she was j