look at the Outdoor Girls.

Certainly they had every appearance of living the life of the open,
for they had been well tanned by the long walk they took, and that
"berry-brown" was being added to now by the summer sun reflecting from
the river.

"Is this as fast as you can go?" asked Mollie, as she looked over the
side and noted that they were not much exceeding the current of the
river.

"Indeed, no! Look!" cried Betty, as she released the throttle control
that connected the gasoline supply with the motor. At once, as when
the accelerator pedal of an auto is pressed, the engine hummed and
throbbed, and a mass of foam appeared at the stern to show the
presence of the whirling propeller.

"That's fine!" cried Grace, as Betty slowed down once more.

"I thought we'd take it easy," the Little Captain went on, "as we
don't want to finish our cruise in one day, or even two. If I drove
the Gem to the limit, we'd be in Rainbow Lake, and out of it, in too
short a time. So I planned to go down the river slowly, stop at noon
and go ashore for our lunch, go on slowly again, and tie up for the
night."

"Then we're going to sleep aboard?" asked Grace.

"Of course! What would be the fun of having bunks if we didn't use
them? Of course we'll sleep here."