"Come on now and get washed up," called Bob, as he shut down the dynamo and took out two cylinders, which, he was pleased to see, were full. "That's eight we've filled today, but come get a move, we must catch that five o'clock car or we'll be late to supper."
Edna and May met them at the wharf, in the Sprite, and by six-thirty they were eating supper and telling the family about their day's work.
CHAPTER XVII.
THE NEW ELECTRIC MOTORCYCLE.
Bright and early the next morning found the boys hard at work again. They were very skillful at this kind of work, and by three o'clock the motors were clamped in place, the cylinders installed and everything ready for a tryout. The current was turned on by twisting the left-hand grip and, as that controlled the entire running part, it was very simple.
"My goodness, Bob," said Jack, as he straightened up, after making the last connection, "I'll bet these machines don't weigh more than half as much as they did before."
"No, I guess they don't. These motors are very light compared with the gasoline engines, and they're what made the most of the weight. Now, let's take them out on the road and see how they'll go."
Wheeling the machines out by the basement door, they were soon on the road in front of the house.
"Well, here goes," cried Jack, jumping into the saddle and giving the grip a slight turn.
Off he went up the road, followed a moment later by Bob. The wheels ran perfectly and with no noise except the low humming of the motors, which could be heard, but a few feet away. They were going at about twenty-five miles an hour and were using but a small part of their power.
"Say, old man," shouted Bob, as he rode up beside his brother, "this is going some, eh?"