"Now I guess we can try it," said the eldest Rover boy, at last. "But we'll tie her down first," he added, with a grin.
"Yes, and good and hard this time," added Tom.
"Rope her to the raft," suggested Sam. "And drive a few stakes in the ground, too," and this was done.
It was a wonder that none of the propeller blades had been broken, yet such was a fact. They were scratched and nicked, but a coat of varnish would soon remedy all that.
Dick turned on the spark, adjusted the gasoline feed, and then he and Tom took hold of the propeller blades. Half a dozen turns proved unavailing and the boys looked glumly at each other. Had the engine been damaged after all?
"Give her another," said Dick, and this was done. Then the engine suddenly responded, and there followed those gatling-gun like explosions that set the horses to prancing wildly.
"Hi! hi! let up with thet racket!" yelled Peter Marley. "If ye don't them hosses will run away!"
"All right, I'll stop her and you can take the horses up into the field," answered Dick.
He sprang to the front of the biplane to stop the engine, but ere he could do so one of the horses broke away and galloped madly away in
