day's play.

"One hour more," said Mr. Bobbsey, consulting his watch.

"Let's have a game of ball, Nan?" suggested Bert, who never traveled
without a tennis ball in his pocket.

"How could we?" the sister inquired.

"Easily," said Bert. "We'll make up a new kind of game. We will
start in the middle of the car, at the two center seats, and each move
a seat away at every catch. Then, whoever misses first must go back
to center again, and the one that gets to the end first, wins."

"All right," agreed Nan, who always enjoyed her twin brother's games.
"We will call it Railroad Tennis."

Just as soon as Nan and Bert took their places, the other passengers
became very much interested. There is such a monotony on trains that
the sports the Bobbseys introduced were welcome indeed.

We do not like to seem proud, but certainly these twins did look
pretty. Nan with her fine back eyes and red cheeks, and Bert just
matching her; only his hair curled around, while hers fell down.
Their interest in Railroad Tennis made their faces all the prettier,
and no wonder the people watched them so closely.

Freddie was made umpire, to keep him out of a more active part,
because he might do damage with a ball in a train, his mother said;
so, as Nan and Bert passed the ball, he called,--his father prompting