An incident that gave a great impetus to their interest in the subject was the offering of prizes by Mr. Ferberton, the member of Congress for their district, for the best radio sets turned out by the boys of his congressional district by their own endeavors. Bob, Joe, and Jimmy entered into this competition with great zest. Herb with his habitual indolence kept out of it.

While the boys were engrossed with their radio experiments an incident happened in town that led them into many unexpected adventures. An automobile run by a visitor in town, a Miss Nellie Berwick, got out of her control and dashed through the window of a store. Bob and Joe, who happened to be at hand, rescued the girl from imminent peril, while Herb and Jimmy did good work in curbing the fire that followed the accident.

How the boys learned of the orphan girl’s story, got on the track of the rascal who had tried to swindle her and forced him to make restitution; what part the radio played in bringing the fellow to terms; how they detected and thwarted the plans of Buck Looker and his cronies to wreck their sets; are told in the first volume of this series entitled: “The Radio Boys’ First Wireless; Or, Winning the Ferberton Prize.”

That summer the chums went to Ocean Point on the seashore, where many of the Clintonia folks had established a little bungalow colony of their own. What adventures they met with there; what strides they made in the practical work of radio; how they were enabled by their knowledge and quick application of it to save a storm-tossed ship on which members of their own families were voyaging; how they ran down and captured the scoundrel Cassey who had knocked out with a blackjack the operator at the sending station and looted his safe—these and many more incidents are narrated in the second volume of this series entitled: “The Radio Boys at Ocean Point; Or, The Message That Saved the Ship.”

While the summer season was yet at its height, the boys had occasion to rescue the occupants of a rowboat that had been run down by men in a stolen motor boat. The two rescued youths proved to be vaudeville actors, and the boys grew very friendly with them. The injury that crippled one of them, Larry Bartlett; the false accusation brought against him by Buck Looker; the way in which the boys succeeded in getting work for Larry at the sending station, where his remarkable gift of mimicry received recognition; how they themselves were placed on the broadcasting program, and the clever way in which they trapped the motor-boat thieves; are told in the third volume of the series, entitled: “The Radio Boys at the Sending Station; Or, Making Good in the Wireless Room.”

The coming of fall brought the boys back to Clintonia, where, however, the usual course of their studies was interrupted by an epidemic that made necessary for a time the closing of the schools. This gave the radio boys an opportunity to make a trip to Mountain Pass, a popular resort in the hills. Here they came in contact with a group of plotters who were trying to put through a nefarious deal and were able to thwart the rascals through the use of radio. By that same beneficent science too they were able to save a life when other means of communication were blocked. And not the least satisfactory feature was the utter discomfiture they were able to visit upon Buck Looker and his gang. These and many other adventures are told in the fourth volume of the series, entitled: “The Radio Boys at Mountain Pass; Or, The Midnight Call for Assistance.”

And now to return to the radio boys as they stood facing the angry storekeeper amid a constantly growing throng of curious onlookers. They had been in many tighter fixes in their life but none that was more embarrassing.

“I’ll have them arrested!” the storekeeper repeated, his voice rising to a shrill treble.

“Now look here,” replied Bob. “Suppose you cut out this talk of having us arrested. In the first place, we didn’t break your window. In the second place, if we had it wouldn’t be a matter of arrest but of making good the damage.”

“All right then,” said Mr. Larsen eagerly, catching at the last word. “Make good the damage. It will cost at least two hundred dollars to replace that window.”