ing both a sending and receiving plate in each booth, just as there was a receiver and a transmitter to the telephone.
"Hurray! I see you, Tom!" cried Ned, over the wire. "Say, this is great!"
"It isn't as good as I want it," went on Tom. "But it proves that I'm right. The photo telephone is a fact, and now persons using the wire can be sure of the other person they are conversing with. I must tell dad. He wouldn't believe I could do it!"
And indeed Mr. Swift was surprised when Tom proved, by actual demonstration, that a picture could be sent over the wire.
"Tom, I congratulate you!" declared the aged inventor. "It is good news!"
"Yes, but we have bad news of Mr. Damon," said Tom, and he told his father of the disappearance of the eccentric man. Mr. Swift at once telephoned his sympathy to Mrs. Damon, and offered to do anything he could for her.
"But Tom can help you more than I can," he said. "You can depend on Tom."
"I know that," replied Mrs. Damon, over the wire.
And certainly Tom Swift had many things to do now. He hardly knew at what to begin
