Tom Swift and His Motor-Cycle

to the post-office handed in the letter for registry. Bearing in mind his father's words, he looked about to see if there were any suspicious characters, but the only person he noticed was a well-dressed man, with a black mustache, who seemed to be intently studying the schedule of the arrival and departure of the mails.

"Do you want the receipt for the registered, letter sent to you here or at Shopton?" asked the clerk of Tom. "Come to think of it, though, it will have to come here, and you can call for it. I'll have it returned to Mr. Barton Swift, care of general delivery, and you can get it the next time you are over," for the clerk knew Tom.

"That will do," answered our hero, and as he turned away from the window he saw that the man who had been inquiring about the mails was regarding him curiously. Tom thought nothing of it at the time, but there came an occasion when he wished that he had taken more careful note of the well-dressed individual. As the youth passed out of the outer door he