"Oh, he does not mean literally," the elder brother explained. "But it is away with their license which is almost as disastrous a fate to a man who has planned to make his living by wireless. Nor is the loss of the license all that happens. In addition one is liable to a two-hundred-and-fifty-dollar fine or three years' imprisonment."

"Jove! They do come down on you!" Dick averred.

"Ra-ther! You know, of course, that if you violate any clause of your radio agreement you may be fined one hundred dollars; and should an operator fake a distress call the fine is twenty-five hundred dollars, or five years in prison and perhaps both. Even the smallest fine one can get off with for such an offense is two years behind the bars. It makes you think twice before playing that little joke. The government is wise, too, to spread it on thick, for to fake an S O S which is given the right of way over every other signal would be a contemptible trick. Mild punishments like fines and imprisonments would be too good for the wretch who would so deliberately mislead people. Moreover a few such offenses would cause the importance of the call to be discredited so that in time nobody would be in a rush to pay attention to it."

"I didn't realize an S O S so invariably had the right of way," meditated Dick. "Of course I knew it was the distress signal at sea."

"S O S in the International Morse Code is the universal distress call adopted by the common consent of our civilized nations at the wireless convention held at Berlin in 1906. Every radio station ashore or afloat is obliged to give it first place and do everything possible to further its demands. When a distress call is heard all ships and stations everywhere that hear it are in honor bound to stop whatever they may be doing and listen; nor must they try to talk with the ship herself unless she asks them to. Instead, after she has sent out her call for attention, which is equivalent to our Hello of the telephone, she gives her name; the name of the station or ship she wishes to talk with; states what the matter is; and defines as nearly as she is able her position. This done she sends out a general call and if the station or ship she has asked aid from has not caught the signal and fails to answer her, any operator within hearing may do so. The instant he begins to talk with her, however, all the others listening in must remain silent. At last, when the message is delivered or the necessary conversation at an end, then the ship's radio man sends out a broadcast to let everybody know that he has finished so that all stations may resume their regular routine."

"Some system!" breathed Dick.

"I guess you would think there was some system if you were to see a book of radio rules," returned Bob. "I'll show you mine some day. All the various shore stations have their many regulations, as I have told you before; shipboard stations have theirs; and even the amateurs are protected so that every class may get fair play and not bother his neighbor. Wireless stations, you see, are not mere toys. They have work to do and must be able to do it unhampered."

"I'd like a glimpse of that manual," suggested Dick.

"I'll bring it round to-morrow," Bob answered, glancing at his watch and rising.

The others rose too.