liability of our stations, if you understand me. He wishes to undermine public confidence. Unfortunately our receivers and—ah—coherers are unable to discover the particular type of waves which bring this disturbance about. And since we have received reports to the effect that you have in your possession a certain substance or chemical which reacts in the most remarkable way to these disturbances”
“Reports from whom?”
“From your colleague, Mr.—ah—Mr. Thomas. Mr. Thomas—ah.” Sir Reginald extracted a letter from the bundle of papers he had brought with him. “‘Dear Sir,’” he read with a certain amount of effort, “‘I have seen in the newspapers an announcement of a reward, etc., etc. As at the present moment it is impossible for me to leave Balttin, where I am at work in connection with a certain discovery, and as a matter of such importance cannot be dealt with by letter, I beg you to seek out in Prague a friend of mine with whom I have worked for many years, Mr. Eng. Prokop, who is in possession of a newly discovered substance, Krakatit, the tetrargon of a certain lead salt, the synthesis of which is made by utilizing the effect of a high frequency current. Krakatit reacts, as various exact experiments have demonstrated, to certain mysterious disturbing waves by a powerful explosion, from which it follows that it will have decisive significance for determining the nature of the waves in question. In view of the importance of the matter I would suggest, on behalf of myself and my friend, that the reward offered should be considerably rai’” Sir Reginald cleared his throat. “That is really all,”
