st on the other track, with a loud whistle, a clanging of
the bell and puffing of the engine, that sent smoke and cinders into
Bunny's face. The little fellow jumped back quickly.

"There!" exclaimed Mrs. Brown. "You see it is much nicer on the side
where you were first. No trains pass on this side."

So Bunny and Sue were glad enough to go back to the places they had at
first. For some time they were quiet, looking out at the different
stations as they stopped. At noon their mother gave them some chicken
sandwiches from a basket of lunch she had put up.

"Why don't we go into the dining car, like we did once?" Bunny wanted to
know.

"Because there isn't any on this train," said Mrs. Brown. "But we will
soon be at Aunt Lu's. Now sit back in your seats, and rest yourselves."

Bunny and Sue did for a while. Then they looked for something else to
do. The train boy came through with some picture books, and Mrs. Brown
bought one each for Bunny and Sue.

These kept them quiet for a little while, but the books were soon
finished, even when Bunny took Sue's and gave her his, to change about.

"You come back and sit in my seat, Bunny," Sue invited her brother
after a while.

"No, you come with me," said Bunny. So Sue got in with him, but she
wanted to sit next to the window, and as Bunny wanted that place
himself, they were not satisfied, until Sue went back in her own seat.

About this time Bunny looked up and saw a long cord stretched overhead
in the car, like a clothes line. It hung down from the car ceiling, and
ran over little brass wheels, or pulleys, like those on Mr. Brown's
boats, only much smaller.

"Do you see that cord, Sue?" asked Bunny.

"Yes," answered the little girl. "What's it for?"

"That's what holds the cars together," Bunny said. "The cars are tied to
the engine with that cord."

Of course this was not so, for it takes strong iron chains and bars to
hold the railroad cars one to another, and to the engine. But Bunny
thought the cord, that blew a whistle in the engine, kept the train from
coming apart.

"Is that what it's for?" asked Sue. "It isn't a very big string for to
hold a train."

"Oh, it's very strong," Bunny said. "Nobody could break it."

"I--I guess daddy could break it," Sue suggested.

"No he couldn't!"

"Yes he could! Daddy's awful strong!"

"He couldn't break that cord!" declared Bunny. "Nobody could break it.
If I could pull it down here, you could pull on it and see