going
to use the maximum speed just yet, but he first wanted to see how the
motor of the ARROW would behave under these conditions. To his delight
he saw his boat slowly creeping up on Andy's. The latter, with a
glance over his shoulder, saw it too, and he advanced his spark. His
craft forged ahead, but the rate of increase was not equal to Tom's.
"If I can keep up to him I suppose I ought to be glad," thought the
young inventor, "for his boat is away ahead of mine in rating."

Through the water the sharp bows cut. There were only a few witnesses
to the race, but those who were out in boats saw a pretty sight as the
two speedy craft came on toward the dock, which was the turning point.

Andy's boat reached it first, and swung about in a wide circle for the
return. Tom decided it was time to make his boat do its best, so he
set the timer at the limit, and the spark, coming more quickly,
increased the explosions.

Up shot the ARROW and, straightening out after the turn, Tom's craft
crept along until it lapped the stern of the RED STREAK. Andy looked
back in dismay. Then he tried to get more speed out of his engine. He
did cause the screw to revolve a little faster, and Tom noted that he
was again being left behind. Then one of those things, which may
happen at any time to a gasoline motor, happened to Andy's. It began
to miss explosions. At first it was only occasionally, then the misses
became more frequent.

The owner of the RED STREAK with one hand on the steering wheel, tried
with the other to adjust the motor to get rid of the trouble, but he
only made it worse. Andy's boat began to fall back and Tom's to creep
up. Frantically Andy worked the gasoline and sparking levers, but
without avail. At last one cylinder went completely out of service.

The two boats were now on even terms and were racing along side by side
toward the wooded, point, which marked the finish.

"I'll beat you yet!" exclaimed Andy fiercely.

"Better hurry up!" retorted Tom.

But the young inventor was not to have it all his own way. With a
freakishness equal to that with which it had ceased to explode the dead
cylinder came to life again, and the RED STREAK shot ahead. Once more
Andy's boat had the lead of a length and the finish of the race was
close at hand. The squint-eyed lad turned and shouted: "I told you I'd
beat you! Want a tow now?"

It began to look as though Tom would need it, but he still had
something in